Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December...

280
Huddleston & Co., Inc. Petroleum and Geological Engineers Texas Registered Engineering Firm F-1024 Houston, Texas COASTAL ENERGY COMPANY Thailand Property Evaluation As of December 31, 2009

Transcript of Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December...

Page 1: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Huddleston & Co., Inc. Petroleum and Geological Engineers

Texas Registered Engineering Firm F-1024 Houston, Texas

COASTAL ENERGY COMPANY

Thailand Property Evaluation

As of December 31, 2009

Page 2: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

TABLE OF CONTENTS Letter of Transmittal Report Preparation Review of 2009 Activity Review of Assets Geologic Description Offshore Summary Onshore Summary Reserve and Resource Estimates Reserve Estimates Songkhla A Oligocene Oil Field Songkhla A Oligocene Wedge Songkhla A Eocene Oil Field Bua Ban Oil Field Sinphuhorm Gas Field Contingent and Prospective Resources Contingent Resources Prospective Resources Economic Analysis Forecast Price Case Operating Expenses Capital Expenditures Income Tax Considerations Report Qualifications Figures Tables Appendices

Page 3: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

List of Figures

1 Map of Thailand Onshore and Offshore License Areas

2 Map of Thailand Offshore License Areas and Fields

3 Map of Thailand Onshore License Areas and Fields

4 Seismic Cross Section of Songkhla Basin Area

5 Schematic Cross Section of Sinphuhorm Gas Field Area

6 Sinphuhorm Gas Field Monthly Production (11/06 – 12/09)

7 Map of Offshore Prospective WFT Oil Prospects

8 Graphical Summaries of Estimated Future Net Production – Offshore Properties

9 Graphical Summaries of Estimated Future Net Production – Onshore Properties

Page 4: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

List of Tables

1 Assets Net to Coastal Energy

1.1 Offshore Property Evaluation

1.2 Onshore Property Evaluation

1.3 Combined Property Evaluation

2 Summary of Coastal Energy Licenses and Working Interests – Thailand

3 Summary of Reserves – Offshore, Onshore, and Combined

4 Summary of Volumetric Parameters for Offshore Oil Formations

5 Summary of Reserve Assignments – Offshore Block G5/43 – Songkhla A Oligocene Oil Field

6 Summary of Reserve Assignments – Offshore Block G5/43 – Songkhla A Oligocene Wedge Oil Field

7 Summary of Reserve Assignments – Offshore Block G5/43 – Songkhla A Eocene Oil Field

8 Summary of Reserve Assignments – Offshore Block G5/43 – Bua Ban Oil Field

9 Gas Contract Summary and Sinphuhorm Gas Field Gas Volumes

10 Sinphuhorm Gas Field Monthly Gas and Condensate Production (11/06 – 12/09)

11 Summary of Volumetric Parameters for Gas Formations

12 Summary of Contingent Resources – Offshore, Onshore, and Combined

13 Assignment of Contingent Resources for Onshore Blocks EU1/E5N – Sinphuhorm Gas Field Pha Nok Khao Formation – Gross Volumes Only

14 Summary of Prospective Resources – Offshore, Onshore, and Combined

15 Forecast Price Case – Gas, Crude Oil and Condensate Price Assumptions and Calculations

16 Summary of Lease Operating Expenses – Forecast Price Case – 100% Interests – Combined Offshore and Onshore Properties

17 Summary of Lease Operating Expenses – Forecast Price Case – Net to Coastal Energy – Combined Offshore and Onshore Properties

18 Summary of Capital Expenditures by Reserve Classification – Forecast Price Case – 100% Interests – Combined Offshore and Onshore Properties

Page 5: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

List of Tables Page Two 19 Summary of Capital Expenditures by Field – Forecast Price Case – 100% Interests – Offshore,

Onshore, and Combined

20 Summary of Capital Expenditures by Field – Forecast Pricing Case – Net to Coastal Energy – Offshore, Onshore, and Combined

21 Comparison of Before and After Income Tax Net Revenues – Forecast Price Case – Offshore, Onshore, and Combined

22 AIF – Offshore Reserves Data – Forecast Prices and Costs

23 AIF – Offshore Net Present Value of Future Net Revenues – Forecast Prices and Costs

24 AIF - Consolidated Reserves Data – Forecast Prices and Costs

25 AIF - Consolidated Net Present Value of Future Net Revenues – Forecast Prices and Costs

26 AIF - Offshore Future Net Revenues – Forecast Prices and Costs

27 AIF - Offshore Future Net Revenue by Production Group – Forecast Prices and Costs

28 AIF - Summary of Offshore Pricing and Inflation Rate Assumptions – Forecast Prices and Costs

29 AIF - Offshore Reconciliation of Net Reserves – Forecast Prices and Costs

30 AIF - Offshore Reconciliation of Changes in Future Net Revenue – Forecast Prices and Costs

31 AIF - Onshore Reserves Data – Forecast Prices and Costs

32 AIF - Onshore Net Present Value of Future Net Revenues – Forecast Prices and Costs

33 AIF - Onshore Future Net Revenues – Forecast Prices and Costs

34 AIF - Onshore Future Net Revenue by Production Group – Forecast Prices and Costs

35 AIF - Summary of Onshore Pricing and Inflation Rate Assumptions – Forecast Prices and Costs

36 AIF - Onshore Reconciliation of Net Reserves – Forecast Prices and Costs

37 AIF - Onshore Reconciliation of Changes in Future Net Revenue – Forecast Prices and Costs

Page 6: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

List of Appendices A Glossary of Technical Terms

B Conversion Factors and Abbreviations

C Certificates of Qualification

D Canadian Form 51-101 F2

E Definitions of Reserves and Resources

Society of Petroleum Engineers (SPE) Petroleum Resources Management System (“SPE-PRMS”) Guide for Nom-Technical Users, March 2007 (see complete PRMS at SPE website as referenced in Appendix E)

Reserve Definitions, Canadian Securities Administrators National Instrument 51-101

F Detailed Cash Flow Projections – Forecast Price Case – Net to Coastal Energy – Offshore Property Evaluation (Proved + Probable + Possible) – Table 1.1 Data

One-Line Cash Flow Report

Detailed Cash Flow Report

G Detailed Cash Flow Projections – Forecast Price Case – Net to Coastal Energy – Onshore Property Evaluation (Proved + Probable + Possible) – Table 1.2 Data

One-Line Cash Flow Report

Detailed Cash Flow Report

H Detailed Cash Flow Projections – Forecast Price Case – Net to Coastal Energy – Combined Property Evaluation (Proved + Probable + Possible) – Table 1.3 Data

One-Line Cash Flow Report

Detailed Cash Flow Report

Page 7: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Huddleston & Co., Inc. Petroleum and Geological Engineers

1 Houston Center 1221 McKinney, Suite 3700

Houston, Texas 77010

PHONE (713) 209-1100 FAX (713) 752-0828

March 17, 2010

Coastal Energy Company Board of Directors Attention: Mr. Randy L. Bartley, CEO Walker House, 87 Mary Street PO Box 908GT George Town, Grand Caymans KY1-9001 Cayman Islands Re: Coastal Energy Company Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas, and condensate interests owned by Coastal Energy Company and its subsidiaries (“Coastal Energy”) both onshore and offshore Thailand. The reserves and resources shown herein have been prepared with consideration for our understanding of National Instrument (“NI”) 51-101 (Disclosure of Oil and Gas Activities) guidelines for Canadian Securities Administrators for the TSX Venture Exchange (“TSX”) in Canada and provisions as a Competent Person’s Report for the Alternative Investment Market (“AIM”) of the London Stock Exchange. Our conclusions, as of December 31, 2009, follow: Table 1.1 – Net to Coastal Energy – Offshore Property Evaluation* Estimated Future Reserves Future Net Revenue (“FNR”) Discounted at: Gross Oil Gross Gas Net Oil Net Gas 0% 5% 10% 15% 20% Forecast Price Case (Appendix F) (Mbbl) (MMcf) (Mbbl) (MMcf) (M$) (M$) (M$) (M$) (M$)

Proved Developed Producing 5,191 0 4,807 0 221,645 205,384 190,996 178,287 167,049 Proved Developed Shut-In 2,794 0 2,586 0 185,822 167,997 152,707 139,527 128,109 Proved Undeveloped 7,183 0 6,597 0 338,961 300,124 265,615 234,988 207,822 Total Proved (1P) 15,168 0 13,991 0 746,429 673,506 609,319 552,803 502,981 Probable Undeveloped 17,701 0 15,676 0 1,126,898 973,898 845,530 737,402 645,944 Total Proved + Probable (2P) 32,869 0 29,667 0 1,873,327 1,647,405 1,454,849 1,290,206 1,148,926 Possible Undeveloped 15,526 0 13,631 0 1,020,009 829,633 679,790 560,952 465,997 Total Proved + Probable + Possible (3P) 48,396 0 43,299 0 2,893,337 2,477,038 2,134,640 1,851,158 1,614,924 Table 1.2 – Net to Coastal Energy – Onshore Property Evaluation* Estimated Future Reserves Future Net Revenue (“FNR”) Discounted at: Gross Oil Gross Gas Net Oil Net Gas 0% 5% 10% 15% 20% Forecast Price Case (Appendix G) (Mbbl) (MMcf) (Mbbl) (MMcf) (M$) (M$) (M$) (M$) (M$)

Proved Developed Producing 1,944 369,750 215 40,901 270,037 201,270 154,563 122,141 99,124 Proved Developed Shut-In 0 0 0 0 0 0 0 0 0 Proved Undeveloped 0 0 0 0 0 0 0 0 0 Total Proved (1P) 1,944 369,750 215 40,901 270,037 201,270 154,563 122,141 99,124 Probable Undeveloped 3,399 646,225 376 71,485 562,558 275,081 144,652 82,376 50,901 Total Proved + Probable (2P) 5,344 1,015,975 591 112,387 832,596 476,351 299,215 204,518 150,025 Possible Undeveloped 0 0 0 0 0 0 0 0 0 Total Proved + Probable + Possible (3P) 5,344 1,015,975 591 112,387 832,596 476,351 299,215 204,518 150,025

Page 8: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Coastal Energy Company Board of Directors March 17, 2010 Page Two

Huddleston & Co., Inc.

Table 1.3 – Net to Coastal Energy – Combined Property Evaluation* Estimated Future Reserves Future Net Revenue (“FNR”) Discounted at: Gross Oil Gross Gas Net Oil Net Gas 0% 5% 10% 15% 20% Forecast Price Case (Appendix H) (Mbbl) (MMcf) (Mbbl) (MMcf) (M$) (M$) (M$) (M$) (M$)

Proved Developed Producing 7,136 369,750 5,022 40,901 491,682 406,654 345,559 300,429 266,174 Proved Developed Shut-In 2,794 0 2,586 0 185,822 167,997 152,707 139,527 128,109 Proved Undeveloped 7,183 0 6,597 0 338,961 300,124 265,615 234,988 207,822 Total Proved (1P) 17,113 369,750 14,206 40,901 1,016,466 874,776 763,882 674,945 602,106 Probable Undeveloped 21,100 646,225 16,052 71,485 1,689,457 1,248,980 990,182 819,779 696,845 Total Proved + Probable (2P) 38,213 1,015,975 30,259 112,387 2,705,924 2,123,756 1,754,065 1,494,725 1,298,952 Possible Undeveloped 15,526 0 13,631 0 1,020,009 829,633 679,790 560,952 465,997 Total Proved + Probable + Possible (3P) 53,740 1,015,975 43,890 112,387 3,725,933 2,953,389 2,433,855 2,055,677 1,764,949 *Numbers subject to rounding. Report Preparation

At the request of Coastal Energy, the net reserves and revenues contained in this report have been prepared with forecast price assumptions only. Constant price case net reserves and revenues have not been included in this report.

The projected reserves and revenues shown herein have been prepared in accordance with our understanding of the requirements of NI 51-101 and the Canadian Oil and Gas Evaluation Handbook, Volume 1 – Reserves Definitions and Evaluation Practices and Procedures and are intended for Canadian securities filing purposes. Canadian regulations and guidelines provide for estimates of unrisked Proved and Probable reserves and associated revenues discounted at 5%, 10%, 15%, and 20%, based on constant and forecast prices and costs. Tables 22 through 37 in this report are intended to reflect the reporting requirements for oil and gas reserves pursuant to the Canadian Annual Information Form (“AIF”).

The projected reserves and revenues shown herein have also been prepared in accordance with our understanding of the requirements for a Competent Person’s Report for the AIM market of the London Stock Exchange. The AIM regulations and guidelines provide for estimates of unrisked Proved, Probable, and Possible reserves and associated revenues discounted at 10%, based on constant and forecast prices and costs. AIM guidelines also allow for the inclusion of Contingent and Prospective Resource estimates.

At the request of Coastal Energy, the reserve volumes and revenues in this report have been divided into two (2) areas: offshore and onshore. The segregation of the offshore field areas and the onshore field areas is in compliance with Canadian regulations surrounding the accounting treatment by Coastal Energy of its net ownership interest in the two areas. Tables and cash flows have also been prepared that combine the reserve volumes and revenues of the two separate operating areas.

As shown in Tables 1.1, 1.2, and 1.3, and for the purposes of TSX admission, the Coastal Energy reserves have been presented in Proved (“1P”) and Proved + Probable (“2P”) formats using forecast economic assumptions. For the purposes of AIM admission, the Coastal Energy reserves have been presented in Proved + Probable + Possible (“3P”) formats, again using forecast economic assumptions. Detailed cash flow projections can be found in Appendices F through H. Also, after income tax cases have been prepared. Furthermore, for AIM admission purposes, both Contingent and Prospective resource volumes have been prepared. Economic projections were not prepared for the Contingent and Prospective resources; only their associated oil, condensate, and gas volumes are presented.

Page 9: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Coastal Energy Company Board of Directors March 17, 2010 Page Three

Huddleston & Co., Inc.

The Society of Petroleum Engineers (“SPE”) approved updated revisions to its rules governing oil and gas reserves reporting in March 2007 with the adoption of the Petroleum Resources Management System (“PRMS”). The SPE-PRMS document was developed in collaboration with the World Petroleum Congress (“WPC”), the American Association of Petroleum Geologists (“AAPG”), and the Society of Petroleum Evaluation Engineers (“SPEE”). The SPE has also promulgated Standards Pertaining to the Estimating and Auditing of Oil and Gas Reserve Information that specifies requirements for the qualifications and independence of reserve estimators and auditors and accepted methods for the estimation of future reserves.

The estimated reserves and resources shown herein have been prepared with consideration for SPE, WPC, AAPG, and SPE reserve classification definitions which comply with reserve and resource definitions as adopted by the Canadian Institute of Mining, Metallurgy & Petroleum (“CIM”) (Petroleum Society).

Reserve and resource definitions from the March 2007 SPE-PRMS document and reserve definitions from the Canadian Securities Administration NI 51-101 are included in Appendix E.

All cash flow data in this report has been expressed in United States (“US”) dollars.

Review of 2009 Activity

Offshore, Coastal Energy drilled, tested, and put into production three wells in the Songkhla A complex in late 2008: the A-1, A-3, and A-7 wells. Three more producing wells, the A-2, A-4, and A-8, and two water injectors, A-5 and A-6, were drilled and put into operation during 2009. The A-2 well was initially completed as a water disposal well in 2009 but Coastal Energy has plans in their budget to convert this well into a producer in early 2010.

Coastal Energy drilled the B-1 exploratory well on the offshore Songkhla B structure in early 2010. The B-1 well was drilled into the Prospective resource targets of the Songkhla S-E Oligocene and the Songkhla S-E Eocene formations that were carried in last year’s report. This complex is now called the Songkhla B area as of December 31, 2009. The B-1 exploratory well found these two prospects to be dry and they have been dropped from this year’s list of Prospective resource prospects.

As of the date of this report letter, Coastal Energy has drilled the B-2 exploratory well into the remaining Songkhla S-W Oligocene prospect (now called the Songkhla B). The B-2 well was initially drilled into the eastern-most structure to a total depth of 9,606 feet and encountered seven feet of net pay in the Lower Oligocene reservoir. Coastal Energy then sidetracked the B-2 well into the western-most remaining Songkhla B structure and in early March 2010 reached a total depth of 11,073 feet and encountered twelve feet of net pay in the Lower Oligocene reservoir. Following logging operations, Coastal Energy decided that there were not enough reserves to justify a stand-alone development. The Songkhla B wells were temporarily abandoned and the rig will be mobilized to the Benjarong prospect. After drilling Benjarong, the rig will begin drilling the wells at Bua Ban.

Onshore, the Si That 3 well (Block L13/48) and the Phu Kheng 1 well (Block L27/43) were drilled and tested during 2009. The Si That 3 well reached a total depth of 9,107 feet and encountered the Pha Nok Khao gas formation. Gas shows were seen in the reservoir interval and the log indicated a fractured carbonate section. Testing was hampered by a downhole obstruction and as of December 31, 2009, work had been suspended pending further testing.

The Phu Kheng 1 well was drilled on the Dong Mun structure to a total depth of 7,891 feet and tested the two shallower intervals of the Phu Kradung sandstone and one deeper zone in the Nam Phong sandstones in August 2009. All three zones had good gas shows during drilling and logging operations; however, subsequent fracture stimulation and testing of the Nam Phong sandstones failed as a result of

Page 10: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Coastal Energy Company Board of Directors March 17, 2010 Page Four

Huddleston & Co., Inc.

sealing problems. As of December 31, 2009 the operator was waiting on a hydraulic workover unit to further test the well. The assigned resources for this field (Dong Mun in Block L27/43) and formation (Phu Kheng) were carried in the Prospective category last year; however, due to the 2009 gas shows the resource volumes for this field and formation have been moved to the Contingent resource category as of December 31, 2009, without any revisions.

Review of Assets

A summary of Coastal Energy’s licenses and working interests in their Thailand assets appears in Table 2. The reserve and resource assets are located in both onshore and offshore licensed areas. The Coastal Energy offshore assets are located in Block G5/43 in the Songkhla Basin in the southern Gulf of Thailand (Figure 1). Coastal Energy operates and owns a 100% working interest position in the offshore Block G5/43 assets. Three reserve discoveries, the Bua Ban Oil Field, the Songkhla A Oligocene Oil Field, and the Songkhla A Eocene Oil Field, are currently either under development or production in Block G5/43 by Coastal Energy (Figure 2). The two Songkhla A oil fields are located approximately 15 miles offshore in about 78 feet of water and were drilled and tested in late 2008. The Songkhla A Oligocene and Eocene wells began producing in late 2008. The Bua Ban Oil Field is located approximately 10 miles offshore in about 60 feet of water and is scheduled for initial production in 2010. Several other prospects containing Contingent and Prospective resources in Block G5/43 in the Gulf of Thailand have also been evaluated in this report. Offshore license area G5/50 is also operated by Coastal Energy and is in the exploration phase of development.

The primary onshore reserve asset is the currently producing Sinphuhorm Gas Field, located approximately 290 miles northeast of Bangkok (Figure 1). The field was formerly known as Phu Horm Gas Field and was re-named in 2008 in honor of the Thai Royal Family. The gas field is located primarily in Blocks E5N and EU1 (Figure 3) and is operated by Hess. The structure covers approximately 89 square miles in the Udon Thani and Khon Kaen provinces. Small portions of several Sinphuhorm subsurface formations extend onto the L15/43 license area, which is operated by APICO LLC (“APICO”). Coastal Energy owns 36.1% of APICO and is the largest shareholder in the company. Contingent and Prospective resources in several of the onshore license areas, Blocks EU1/E5N, L15/43, L27/43, and L13/48 have also been evaluated in this report. Onshore license areas L15/43, L27/43, and L13/48 are also operated by APICO and are in the exploration phase of development.

Geologic Description

Offshore Summary: Three discrete Tertiary half graben basins, the Songkhla, Nakhon, and Kho Kra Basins, lie within the offshore Block G5/43. The basins contain up to 13,000 feet of sedimentary section and are characterized by early Tertiary rift phase, during which lacustrine sediment systems were dominant. The structures within the basins are primarily tilted fault traps or antiform features related to rollover into the basin margin faults. Structuring is best developed at the Oligocene and older levels, with ultimate top seal provided by a thick calcareous claystone unit of late-Oligocene age. A schematic stratigraphic sequence of the Songkhla Basin is attached as Figure 4.

The Songkhla A Oligocene Oil Field was discovered in 1988 by the drilling of the Songkhla 1 well by Premier Oil Pacific Limited. The well was drilled to a total depth of 8,675 feet and discovered oil in the Lower Oligocene formation between 7,436 and 7,610 feet. Since late 2008 Coastal Energy has drilled seven wells into the Lower Oligocene formation. As of December 31, 2009, three are producing (A-1, A-3, and A-8), two are shut in waiting on pump workovers (A-2 and A-4), and two wells were drilled and operate as water injectors (A-5 and A-6). As of the date of this report, production has been restored at the A-4 well.

Geological interpretations in 2009 by the Coastal Energy staff identified an updip (attic) extension of the Lower Oligocene producing formation at the Songkhla A Oligocene Field. This extension or “wedge” can

Page 11: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Coastal Energy Company Board of Directors March 17, 2010 Page Five

Huddleston & Co., Inc.

be seen on seismic cross-sections on the eastern-most portion of the existing producing Oligocene formation. Coastal Energy has budgeted three oil production wells for the wedge portion of the Oligocene formation in 2010.

In late 2008 Coastal Energy drilled the A-7 exploration well into the Songkhla A Eocene prospect, located just east of the main Songkhla A Oligocene Oil Field. The A-7 well flow tested at rates of approximately 600 barrels of oil per day in late 2008 and was placed on production in April 2009.

The Bua Ban structure is a North-South elongated anticline running along the downthrown side of the Western Bounding Fault of the Songkhla Basin. The field is located approximately 17 miles north of the port of Songkhla and 10 miles from the coast. The Lower Oligocene formation appears to have been deposited as a lacustrine delta, with sediment entering the basin from the west, crossing the Western Boundary Fault to the North of the Bua Ban structure, and spreading out along the downthrown side of the fault system. The regional seal across the entire basin is the Upper Oligocene lacustrine shale.

In 1990 the Bua Ban 1 well was drilled as a straight hole on a separate structure west of the Songkhla 1 well. The objective was the Lower Oligocene section that was found to be oil-bearing in the Songkhla 1 well. The Bua Ban 1 well was drilled to a total depth of 9,799 feet. The wellbore penetrated the Lower Oligocene at about 7,826 feet. Visible porosity in the oil stained sandstone was described as poor to fair, and the associated show exhibited yellow fluorescence with the presence of a light straw cut in the sample. The lower sand from 7,913 to 7,964 feet was similar to the above sandstone except that there was less oil staining.

In 2005 three more wells were drilled, the Bua ban 2, the Bua Ban 2A, and the Bua Ban 3. The three wells helped to define the productive limits of the field. The Bua Ban Fan was encountered in the Bua Ban 3 well at 7,368 feet true vertical depth (“TVD”) through 7,666 feet TVD, with indications of hydrocarbon fluorescence and gas peaks containing butane. Repeat formation test (“RFT”) samples indicated an oil column within the Bua Ban reservoir. Oil samples obtained from 7,290 and 7,558 feet TVD had a specific gravity of 0.85 (about 25° API).

Onshore Summary: The Sinphuhorm Gas Field lies in the Khorat Plateau area of Thailand and underlies a large north-south trending surface anticline that had been formed by folding and faulting during the Late Cretaceous period. Tertiary through Cretaceous rocks have been eroded from the crest of the structure, leaving a Jurassic through Triassic sequence of non-marine sandstones, siltstones, and claystones. This sequence exceeds 7,800 feet in thickness and overlies the Permian Pha Nok Khao formation. A schematic of the stratigraphic sequence at Sinphuhorm Gas Field is attached as Figure 5.

The currently producing Pha Nok Khao formation is of Permian age and is a wedge-shaped, platform carbonate that dips towards the east, and consists of mudstone, wackestone, and packstone. The Pha Nok Khao structure covers approximately 89 square miles in the Udon Thani and Khon Kaen provinces. A dolomitized 377 to 790 foot thick interval has been encountered in the PH-1, PH-2, and PH-5 wells. The dolomite was not reached in either the PH-3 or the PH-4.

Hess drilled three additional wells in the field in 2007: the PH-6, PH-7, and PH-10. All three wells were directionally drilled from the PH-4 well pad. The PH-10 well was tied into the field’s production system and began producing gas in November 2007.

Cores from the Pha Nok Khao formation show that the porosity ranges between 1% and 4% in the limestone and between 2% and 6% in the dolomite. Fractures are evident, but permeability measurements were generally below 1.0 millidarcy.

The Lower Huai Hin Lat formation, a Triassic-aged conglomeratic sequence overlying the Pha Nok Khao, has also been penetrated by the wells at the Sinphuhorm Gas Field. The Lower Huai Hin Lat formation

Page 12: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Coastal Energy Company Board of Directors March 17, 2010 Page Six

Huddleston & Co., Inc.

consists primarily of conglomerates, carbonates, and siltstones. The producing section is approximately 98 to 115 feet thick in the PH-1 and PH-3 wells. The Lower Huai Hin Lat thickens away from the crest of the structure. Porosity in the Huai Hin Lat formation varies from 2% to 4%. These values were based on PH-1 log analyses and PH-2 core analyses.

A third formation immediately below the Pha Nok Khao, the Lower Permian Si That formation, is also present in the field. The Si That sequence is a Lower Permian-aged sequence comprised of an upper clastics section with some coals and a thicker carbonate section. The Si That formation lies immediately below the Pha Nok Khao. A wedge of the Si That is present on the western flank of the structure. The Si That has not been tested in the Sinphuhorm Gas Field.

Four wells have been drilled on the Dong Mun structure in Block L27/43.. The DM-1 well was drilled and tested by Esso in 1990. The DM-2 well was also drilled in 1990 but was suspended and never tested. The Dong Mun-3 (“DM-3”) well was drilled in November 2007 and suspended in February 2008, with gas shows in the Jurassic and Triassic tight sands. The first two wells also had significant gas shows while drilling through the upper Phu Kheng sandstone series formations. Wireline logs show the sandstone porosities to be in the 3% to 5% range. The DM-1 well was extensively production tested in the deeper carbonates of the Pha Nok Khao formation. The test rates ranged from 0.26 to 23.6 MMcf per day.

Coastal Energy participated in drilling a fourth well on the Dong Mun structure, the Phu Kheng 1, in August 2009. The well was drilled to a total depth of 7,891 feet and tested the two shallower intervals of the Phu Kradung sandstone and one deeper zone in the Nam Phong sandstones. All three zones had good gas shows during drilling and logging operations; however, subsequent fracture stimulation and testing of the Nam Phong sandstones failed as a result of sealing problems. As of December 31, 2009, the operator was waiting on a hydraulic workover unit to further test the well.

Esso and Cairn drilled and tested two wells in the Si That gas prospect area in Block L13/48. The Esso well logged a thick section of Pha Nok Khao carbonates, including two thick dolomite units, and had extensive shows in the Pha Nok Khao carbonates. The Cairn well drilled through about 1,100 feet of the Pha Nok Khao carbonates before passing into the lower Si That formation. The Pha Nok Khao formation tested approximately 1.25 MMcf of gas per day. In 2009 Coastal Energy also participated in drilling the Si That 3 well which reached a total depth of 9,107 feet and encountered the Pha Nok Khao gas formation. Gas shows were seen in the reservoir interval and the log indicated a fractured carbonate section. Testing was hampered by a downhole obstruction and as of December 31, 2009, work had been suspended pending further testing.

The Southeast Dong Mun gas prospect is located in Block L27/43. This prospect was set up by seismic lines acquired in early 2006 by APICO and stratigraphic correlations with the wells drilled in the Dong Mun gas structure. This prospect has not been drilled yet.

Reserve and Resource Estimates

Reserve Estimates

As of December 31, 2009, Huddleston has assigned oil reserves to three offshore oil fields in Block G5/43, the Bua Ban Oil Field, the Songkhla A Oligocene Oil Field (including the wedge area), and the Songkhla A Eocene Oil Field, and gas and condensate reserves to one onshore gas field in Blocks EU1 and E5N, the Sinphuhorm Gas Field. The offshore Block G5/43 license area has been assigned Proved Developed Producing, Proved Developed Shut-In, Proved Undeveloped, Probable Undeveloped, and Possible Undeveloped oil reserves. The onshore EU1 and E5N license areas have been assigned Proved Developed Producing and Probable Undeveloped gas and condensate reserves.

Page 13: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Coastal Energy Company Board of Directors March 17, 2010 Page Seven

Huddleston & Co., Inc.

All Proved reserve assignments have been supported by historical production and sales volumes or well tests in the target reservoirs. The schedules of future recovery and production profiles for such reservoirs may be affected by the actual performance of individual completions.

The future reserve and revenue projections contained in this report do not include any economic values for the offshore gas volumes nor are their volumes included in either of the Contingent or Prospective resource categories.

For AIM admission purposes, Table 3 summarizes the Proved, the Proved + Probable, and the Proved + Probable + Possible reserve assignments under various interest scenarios for the three Coastal Energy-owned fields in Thailand. The “Gross” section of Table 3 summarizes reserves resulting from cash flow projections in which both working interests and revenue interests were set equal to 100%. The “Working Interest” section summarizes reserves resulting from cash flow projections in which both working interests and revenue interests were set equal to the net working interests owned by the particular Coastal Energy entity. As shown in Table 2, Coastal Energy owns a 100% working interest position in the three offshore oil fields: Bua Ban, Songkhla A Oligocene, and Songkhla A Eocene. Coastal Energy owns a 12.6% working interest position in the onshore Sinphuhorm Gas Field in license areas EU1 and E5N via APICO. In this case the royalty volumes were included in the net reserve volumes because the revenue interests were set equal to the net working interests. The “Net to Coastal Energy” section summarizes reserves resulting from cash flow projections that used net working interests and net revenue interests. In this case the net revenue interests have been reduced to reflect the deduction of royalty volumes.

Songkhla A Oligocene Oil Field: As of December 31, 2009, 2,022,450 barrels of oil have been produced and sold from the wells in the Oligocene formation at the Songkhla A Oil Field. The Songkhla 1 well was drilled by Premier in 1988 in 78 feet of water to a total depth of 8,675 feet and discovered oil in the Lower Oligocene formation between 7,436 and 7,610 feet. Two sandstone sections of the Lower Oligocene encountered oil shows and were test results recovered 30° API crude oil with a pour point of 109°F containing 33.8% paraffin, a maximum of 6% CO2, 10 ppm of H2S, and a gas-oil ratio (“GOR”) of 140 scf per barrel. The Songkhla 1 well has been plugged and abandoned. Since late 2008 Coastal Energy has drilled seven more wells into the Lower Oligocene formation. As of December 31, 2009, three wells were producing (A-1, A-3, and A-8), two wells were shut in waiting on workovers (A-2 and A-4), and two wells were drilled and completed as water injectors (A-5 and A-6).

The A-2 well began producing October 4, 2009 but was shut in December 3, 2009 due to pump/formation problems and was converted to a Miocene water disposal well. A $3.5 million workover has been planned for this well to squeeze off the Miocene perforations, drill out two deeper cement plugs, re-perforate, close off lower water production, and return the well to production by April 2010.

The A-4 well began producing October 26, 2009 but was shut-in December 3, 2009 due to an electrical submersible pump (“ESP”) failure. A $1.5 million workover has been planned for this well to replace the ESP and return the well to production by February 2010. As of the date of this report, production from the A-4 well has been restored following successful workover operations.

In 2009 the A-2 well came in 60.0 feet deeper than expected and the A-5 well was thinner than expected in the Oligocene formation. As a result, the Oligocene formation was re-mapped and the original-oil-in-place (“OOIP”) decreased from an estimated 39.322 million barrels last year to 33.769 million barrels in this year’s evaluation.

The reserve assignments for the Proved reserve category were based on a combination of historical production/sales volumes and volumetric calculations. These performance-based assignments were compared to volumetrically derived reserve volumes to test their validity. The volumetric reserve assignments are summarized in Table 4 for all of the offshore oil fields.

Page 14: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Coastal Energy Company Board of Directors March 17, 2010 Page Eight

Huddleston & Co., Inc.

Huddleston assigned Proved Developed Producing, Proved Developed Shut-In, Proved Undeveloped, Probable Undeveloped, and Possible Undeveloped reserves in the Lower Oligocene formation at the Songkhla A Oligocene Oil Field.

The total gross remaining Proved Developed Producing reserve assignment was 5.013 million barrels of oil and the total gross remaining Proved Developed Shut-In reserve assignment was 2.794 million barrels of oil. The total gross remaining Proved recoverable oil volume was 7.807 million barrels. Including the cumulative produced oil volume of 2.022 million barrels, total gross ultimate recoverable Proved oil volume for the Oligocene formation in the Songkhla A Field was approximately 9.830 million barrels as of December 31, 2009.

Huddleston assigned the same amount of Proved ultimate recoverable oil, 9.830 million barrels, this year as last. This Proved volume represents a recovery of 29.1%. The total remaining Proved volume of Oligocene oil net to Coastal Energy was 7.229 million barrels (see Table 5).

The Probable Undeveloped reserve assignment was developed from a 2P reserve case that assumed an increase in the recovery factor to 35% with the help of a pressure maintenance/water injection project. Volumetrically, the 2P model yielded a recoverable gross oil volume of 11.819 million barrels. The difference between the 2P modeled case and the Proved case was 1.989 million barrels of oil, which was assigned to the Probable Undeveloped category. The total Probable volume of oil net to Coastal Energy was 1.744 million barrels (see Table 5).

The Possible Undeveloped reserve assignment was developed from a 3P reserve case that assumed an increase in recovery factor to 40%. Volumetrically, the 3P model yielded an ultimate recoverable gross oil volume of 13.507 million barrels. The difference between the 3P modeled case and the 2P modeled case was 1.688 million barrels of oil, which was assigned to the Possible Undeveloped category. The total Possible volume of oil net to Coastal Energy was 1.468 million barrels (see Table 5).

Songkhla A Oligocene Wedge: Geological interpretations in 2009 by the Coastal Energy staff identified an updip (attic) extension of the Lower Oligocene producing formation at the Songkhla A Oil Field. This extension or “wedge” can be seen on seismic cross-sections on the eastern-most portion of the existing producing Oligocene formation.

Coastal Energy plans to drill three development wells into the wedge area in 2010. This wedge is approximately 220 acres in size and was assigned an ultimate gross Possible Undeveloped reserve volume of 3.480 million barrels of oil, which represents a recovery factor of 30%. The total Possible volume of oil net to Coastal Energy was estimated to be 3.000 million barrels (see Table 6).

Songkhla A Eocene Oil Field: The A-7 well in the Eocene formation at the Songkhla A Oil Field has produced and sold 36,330 barrels of oil as of December 31, 2009. The well was put on production December 9, 2008, and was producing about 270 barrels of oil per day as of December 31, 2009.

Huddleston assigned Proved Developed Producing, Probable Undeveloped, and Possible Undeveloped reserves in the Eocene formation at the Songkhla A Eocene Oil Field.

Production performance was used to assign remaining Proved Developed Producing reserves to the Eocene formation. Remaining Proved reserves were 177,920 barrels for an ultimate Proved assignment of 214,253 barrels of oil or approximately 1.8% of the OOIP. Due to the performance of the A-7 well in the Eocene formation, Proved reserves from last year were moved to the Probable and Possible reserve categories in this year’s evaluation.

The total gross remaining Proved Developed Producing reserve assignment was 177,920 barrels of oil. Including the cumulative produced oil volume of 36,330 barrels, total gross ultimate recoverable Proved

Page 15: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Coastal Energy Company Board of Directors March 17, 2010 Page Nine

Huddleston & Co., Inc.

oil volume for the Eocene formation in the Songkhla A Field was approximately 214,250 barrels as of December 31, 2009. This Proved volume represents a recovery factor of 1.8%. The total remaining Proved volume of Eocene oil net to Coastal Energy was estimated to be 165,100 barrels (see Table 7).

Coastal Energy plans to further develop the Eocene formation with three more producing wells and two water injection wells in 2010.

The Probable Undeveloped reserve assignment was developed from a 2P reserve case that assumed an increase in areal extent and an increase in the recovery factor to 10% with the help of three additional oil production wells. Volumetrically, the 2P model yielded a recoverable gross oil volume of 1.309 million barrels. The difference between the 2P modeled case and the Proved case was 1.094 million barrels of oil, which was assigned to the Probable Undeveloped category. The total Probable volume of oil net to Coastal Energy was 0.952 million barrels (see Table 7).

The Possible Undeveloped reserve assignment was developed from a 3P reserve case that included both fault blocks with an areal extent of 771 acres plus an increase in the recovery factor to 30% with the help of two water injection wells. Volumetrically, the 3P model yielded a recoverable gross oil volume of 5.666 million barrels. The difference between the 3P modeled case and the 2P modeled case was 4.357 million barrels of oil, which was assigned to the Possible Undeveloped category. The total Possible volume of oil net to Coastal Energy was 3.852 million barrels (see Table 7).

Bua Ban Oil Field: The discovery well for the field was the Bua Ban 1 well that was drilled by Premier as a straight hole in January 1990. The well reached a total depth of 9,799 feet and found oil in the Lower Oligocene formation from 7,620 to 7,960 feet. Several Lower Oligocene intervals flow tested 420 to 768 barrels per day of 29° API waxy crude oil. In 2005 three more wells were drilled into the Lower Oligocene formation in the Bua Ban Oil Field area: the Bua Ban 2, 2A, and 3 wells. The three wells helped define the productive limits of the oil field.

The Bua Ban 2 well was drilled in July 2005 as a long-reach deviated well to a total depth of 7,968 feet TVD. An attempt was made to test the well but the lack of proper equipment and other failures resulted in the well not being tested. The well was temporarily abandoned without testing.

The Bua Ban 2A well was drilled as a sidetrack of the 2 well. The main formation was encountered on the Bua Ban 2A well at 7,343 feet to 7,630 feet TVD, with indications of hydrocarbon fluorescence and gas peaks. RFT samples indicated an oil column within the Bua Ban reservoir. Oil samples with a specific gravity between 0.825 and 0.85 (around 25° API) were obtained from 7,483 feet to 7,521 feet TVD. Attempts were made to test the Bua Ban 2A well, but due to barite plugging problems the well would not flow properly and was not tested.

The Bua Ban 3 well was kicked off from the Bua Ban 2/2A plug back. The Bua Ban 3 well was drilled as a long-reach deviated well to a total measured depth of 9,156 feet (7,779 feet TVD). The first Drill Stem Test (“DST”) tested the interval from 7,642 feet to 7,665 feet TVD. The second DST tested the interval from 7,620 feet to 7,642 feet TVD. Both tested intervals were within the lower sandstone unit of the Bua Ban Fan and both tests showed the presence of oil. The second DST had a reported maximum flow rate of 164.4 barrels of oil per day on a 5/16-inch choke with specific gravity of 0.897 and a pressure of 80 psi at the wellhead. After logging and testing the well was plugged and abandoned.

Huddleston assigned Proved Undeveloped, Probable Undeveloped, and Possible Undeveloped reserves in the Lower Oligocene formation at the Bua Ban Oil Field. The Coastal Energy development schedule showed that the larger 1,772 acre Bua Ban Oil Field would be developed with a total of thirty-two wells, including twenty-one producers and eleven water injectors, from two sixteen-slot platforms. Huddleston scheduled nineteen wells as Proved Undeveloped and two as Probable Undeveloped.

Page 16: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Coastal Energy Company Board of Directors March 17, 2010 Page Ten

Huddleston & Co., Inc.

The reserve assignments for all of the reserve categories were based on volumetric calculations and well test data from the four wells at the Bua Ban Oil Field. These performance-based assignments were compared to volumetrically derived reserve volumes to test their validity.

At the Bua Ban Oil Field the oil start rate under natural flow from the Lower Oligocene Unit C formation was 600 barrels of oil per day per well. The start rate was based on test rates from the Bua Ban wells of 420 to 768 barrels of oil per day. The total gross Proved Undeveloped reserve assignment was 7.183 million barrels of oil for nineteen wells.

Volumetrically, the Bua Ban Oil Field was estimated to be 1,772 acres with 82.4 feet of net oil pay (see Table 4). A recovery factor for the low estimate case of 10% yields a recoverable gross oil volume of 7.183 million barrels. Huddleston assigned 7.183 million barrels to the Proved reserve category. The total Proved volume of oil net to Coastal Energy was 6.597 million barrels (see Table 8).

The Probable Undeveloped reserve assignment was developed from a 2P reserve case that assumed an increase in the recovery factor to 30% with the help of two additional oil production wells, the installation of high-volume downhole ESP’s in all twenty-one oil production wells, and eleven water injection wells. Volumetrically, the 2P model yielded a recoverable gross oil volume of 21.800 million barrels. The difference between the 2P modeled case and the Proved case was 14.617 million barrels of oil, which was assigned to the Probable Undeveloped category. The total Probable volume of oil net to Coastal Energy was 12.979 million barrels (see Table 8).

The Possible Undeveloped reserve assignment was developed from a volumetric 3P reserve case that assumed the development of additional structural highs in the Lower Oligocene formation in the Bua Ban Oil Field. These structural highs were identified as a result of 3D seismic interpretations which show possible thick zones in the Lower Oligocene that have not been proven by drilling, but which will be drilled by Coastal Energy in 2010. Volumetrically, the 3P model yielded a recoverable gross oil volume of 27.800 million barrels. The difference between the 3P modeled case and the 2P modeled case was 6.000 million barrels of oil, which was assigned to the Possible Undeveloped category. The total Possible volume of oil net to Coastal Energy was 5.309 million barrels (see Table 8).

All of the oil volumes evaluated in this report for both the Bua Ban Oil Field and the two Songkhla A Oil Fields have been assigned to Proved, Probable, or Possible reserve categories. There were no oil volumes from any of these three fields that were classified as Contingent or Prospective resources.

The GOR value and associated gas volumes are presented in Table 4 for illustrative purposes only. Coastal Energy plans to use all of the offshore produced gas for lease use purposes and none of this gas will be sold.

Sinphuhorm Gas Field: The Pha Nok Khao formation at Sinphuhorm has produced and sold 94.6 Bcf of gross gas and 502,930 gross barrels of condensate as of December 31, 2009. The average gross daily gas sales rate in 2009 was approximately 85.0 MMcf per day, or about 31.0 Bcf for the year. The gross condensate production for 2009 was approximately 163,205 barrels, which was used to determine the condensate yield of 5.26 barrels per MMcf of gas.

Eight wells have been drilled in the onshore Sinphuhorm Gas Field since 1983. PH-1, the discovery well, was drilled in 1983, and PH-2 was drilled in 1989. Esso drilled both wells in the Block EU1 license area. The PH-3 well was drilled in 2003 by Hess and is located in Block E5N. The PH-4 and PH-5 wells were drilled in 2004 and are located in the southern portion of Block EU1 and the southern portion of Block E5N, respectively. In 2007 Hess directionally drilled three more wells form the PH-4 well pad. The PH-6 well was drilled to the north and encountered approximately 1,965 gross feet of Pha Nok Khao carbonates. The PH-7 well was drilled to the west and encountered approximately 1,788 gross feet of

Page 17: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Coastal Energy Company Board of Directors March 17, 2010 Page Eleven

Huddleston & Co., Inc.

tight Pha Nok Khao carbonate section. The PH-10 well was drilled to the east and encountered 800 gross feet of the Pha Nok Khao formation.

As of December 31, 2009, HESS plans to take down hole pressure measurements and determine future potential to either workover or plug and abandon the original PH-1 well in 2010. Two wells, the PH-3 and PH-10 will be worked over in 2010 to increase production capacity. Tested capacity in 2009 was 115.0 MMcf per day (from just three wells) and untested capacity was estimated by HESS to be about 136.0 MMcf per day.

Reserves and revenues for the Sinphuhorm Gas Field have been prepared with consideration for our understanding of the terms of the July 19, 2005, Gas Sales Agreement (“GSA”) between PTT Public Company Limited (“PTT”) and Hess and other partners in Blocks EU1/E5N. The GSA allows make-up gas to be produced from Blocks EU1/E5N to run the Nam Phong Power Station that is owned and operated by the Electricity Generating Authority of Thailand and located approximately 25 miles south of the Sinphuhorm Gas Field. Furthermore, the GSA also specifies the parameters to be used in the calculation of the gas price and associated gas price adjustments for gas produced from the EU1/E5N license area.

As shown in Table 9, the GSA provides for a Daily Contract Quantity (“DCQ”) volume of 108.0 MMcf per day. Until recently, the primary field supplying gas to the Nam Phong Power Station was the older Nam Phong Field, located just east of the power station. As gas production from the Nam Phong Field declines, more gas will be produced from the Sinphuhorm Gas Field. The future gas production schedule for the Nam Phong Field, as shown in Table 9, was supplied by APICO. The Sinphuhorm Gas Field also supplies gas for a natural gas vehicle (“NGV”) plant with an expected second NGV plant online by 2014.

The Sinphuhorm Gas Field began producing gas to the Nam Phong Power Station under the PTT contract on November 30, 2006. Historical monthly gas and condensate production volumes are shown in Table 10 and Figure 6. The gas sales volume for 2009 was approximately 31.0 Bcf, or about 85.0 MMcf per day. As shown in Table 10, the associated condensate yield has averaged approximately 5.26 barrels per MMcf of gas. Cumulative production volumes, as of December 31, 2009, were estimated to be 94.6 Bcf of gas and 502,930 barrels of condensate from the Sinphuhorm Gas Field.

In addition to production performance and volumetric calculations, an attempt was made to develop an estimate of gas-in-place by using the available pressure data, all of which is very early in the life of the field. A pressure versus cumulative gas produced plot was developed by plotting the pressures divided by the z-factor (or gas compressibility factor) against cumulative gas production. The plot showed a gas-in-place volume of about 790.0 Bcf. When compared to our total ultimate Proved volume of 464.3 Bcf (from Table 9) the recovery factor was 58.8% of the pressure plot gas-in-place volume of 790.0 Bcf. The historical cumulative gas production volume of 94.6 Bcf, when compared to the pressure plot gas-in-place volume of 790.0 Bcf, yields a recovery factor of about 12.0%. The use of the pressure performance plot to estimate gas-in-place is typically more valid when at least 10% or more of the estimated gas-in-place volume has been produced. The 10% volume allows for the development of a more established trend line. The pressure plot will be updated as future reports are rendered.

The Probable Undeveloped gas volumes, based on the maximum DCQ volume of 108.0 MMcf per day, were assigned as additional volumes attributable to both the PTT plant and the NGV plants. A portion of the 85.0 MMcf per day volume is currently going to the NGV plant as per APICO. The Probable schedule for the PTT volumes was based on increasing takes as the production from the Nam Phong Field declines over time. The Probable schedule for the NGV plant volumes was based on increasing demand from the plant operator as per APICO.

The total estimated ultimate gas and condensate reserves shown for the Proved and Probable reserve categories at the Sinphuhorm Gas Field (from Table 9) were based on historical production and pressure

Page 18: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Coastal Energy Company Board of Directors March 17, 2010 Page Twelve

Huddleston & Co., Inc.

performance data and volumetric calculations. All of the gas and condensate reserves at the Sinphuhorm Gas Field were limited to the Pha Nok Khao formation in Blocks EU1 and E5N.

Volumetric cases for low, best, and high estimates for the Pha Nok Khao formation were developed by Huddleston. The low estimate case used lowest known gas down to 7,320 feet TVD subsea (“TVDSS”) and was based on the lowest gas from the PH-1 well logs. The low estimate for the Pha Nok Khao formation was the basis for the Huddleston assigned Proved reserve volumes for the Sinphuhorm Gas Field. The best estimate case used the lowest known gas down to 7,475 feet TVDSS, which was taken from the lowest perforation of DST #3 for the PH-2 well. The high estimate case used lowest known gas down to 8,485 feet TVDSS and was based on gas-water contact interpretations by the operator, Hess, from pressure data, mud log data, drilling shows, and well logs.

As shown in Table 9, as of December 31, 2009, a total remaining gross Proved plus Probable gas volume of 1,015.9 Bcf was assigned to the Pha Nok Khao formation under Blocks EU1 and E5N in the Sinphuhorm Gas Field. Approximately 369.7 Bcf was assigned as Proved Developed Producing and 646.2 Bcf was assigned as Probable Undeveloped.

Approximately 94.6 Bcf of gas had been produced as of December 31, 2009. The cumulative gas plus the total Proved volume of 369.7 Bcf equals a total ultimate gas volume of 464.3 Bcf. This assignment can be compared to the volumetrically determined low estimate reserve case volume of 595.6 Bcf as shown in Table 11 for the Block EU1/E5N license area. A summary of the various engineering and geologic parameters that were used to develop the volumetric gas estimates can be found in Table 11.

Scheduling of the Proved Developed Producing gas reserves was based on the historical performance of the producing wells in the Sinphuhorm Gas Field as of December 31, 2009. Three of the last eight wells drilled in the field, the PH-4, PH-5, and PH-10, will serve as the take points for the current Proved Developed Producing gas volumes. The PH-1 well is shut-in and the PH-2 well has been plugged and abandoned. The PH-3 well, one of the most prolific wells in the field, was shut in during March 2009 due to wellbore collapse. The PH-3 and PH-10 wells were initially completed openhole. Remedial workovers are planned in 2010 during which both wells will be cleaned out, logged, and completed with slotted liners to improve gas flow performance.

Future work and associated capital costs are scheduled in this report for the addition of compression to the existing wells and drilling additional wells in the northern part of the field. Compression operations are scheduled to begin in 2013 and three wells, including two development wells and one northern well, will be drilled starting in 2012 through 2013.

Currently the three existing wells are capable of producing the DCQ rates as stated in the GSA. The producing wells have a high Productivity Index (“PI”) with reported Absolute Open Flow (“AOF”) potentials ranging from 98.0 to 258.0 MMcf of gas per day. The current theoretical maximum production rate was estimated by APICO to be about 136.0 MMcf per day.

The primary term of the GSA runs approximately 15 years beginning in late 2006 through late 2021. Huddleston assumed that the GSA would be extended another 10 years, through 2031. Probable gas reserve volumes were assigned to the Huddleston-assumed extension of the GSA and also to the CNG plant. The total ultimate Proved + Probable gas reserve volume of 1,110.5 Bcf can be compared to the volumetrically determined best estimate of 1,638.7 Bcf as shown in Table 11.

Other gas and condensate volumes in the Pha Nok Khao formation that were contained in the adjacent Block L15/43 or other volumes in formations other than the Pha Nok Khao formation in either Blocks EU1/E5N or Block L15/43 were classified as Contingent and/or Prospective resources.

Page 19: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Coastal Energy Company Board of Directors March 17, 2010 Page Thirteen

Huddleston & Co., Inc.

Contingent and Prospective Resources

Contingent Resources are those quantities of oil and gas that are determined to be potentially recoverable from known accumulations, but which are not currently considered to be commercially recoverable because of price and technology limitations.

Prospective Resources are those quantities of oil and gas that are determined to be potentially recoverable from undiscovered accumulations. There is a significantly higher risk with Prospective Resources, relative to Contingent Resources, that they will not mature into revenue generating projects.

As per AIM guidelines, both Contingent and Prospective resource volumes shown in this report are assigned a geological risk factor. For Contingent Resources the geologic risk factor is defined as the estimated chance or probability that the volumes will be economically extracted from known accumulations. For Prospective Resources the geologic risk factor is defined as the estimated chance or probability of discovering hydrocarbons in sufficient quantities for them to be tested to the surface, which is the chance or probability of the Prospective Resources maturing into a Contingent Resource.

Contingent Resources: For AIM exchange purposes, the estimates for Contingent resources are summarized in Table 12 for various license blocks and associated formations. Contingent resources were assigned to two offshore oil prospects both located in one offshore license area, Block G5/43, and to five onshore gas prospects located in four onshore license areas, Blocks EU1/E5N, L15/43, L27/43, and L13/48.

The offshore block contained two oil prospects: the Eocene formation at the Benjarong Oil Prospect and the Lower Oligocene formation at the Songkhla Southwest Oil Prospect (Figure 2). Huddleston assigned Contingent oil resources to these two prospects based on the results from earlier exploratory drilling operations that penetrated and tested known hydrocarbon formations in both prospects. The Benjarong 1 well was drilled in April 1996 and reached a total depth of 10,440 feet. The Lower Oligocene formation was not present in the wellbore but a low permeability sand section below 9,971 feet in the Eocene formation showed hydrocarbon fluorescence, an estimated 60.5 feet of net pay, and recovered a small amount (about one gallon) of 31.5° API waxy crude. The well was later plugged and abandoned due to low permeability of the Eocene formation, testing problems, license expirations, and low oil prices. Coastal Energy has plans in its budget to drill an exploratory well at Benjarong in 2010.

The Songkhla Southwest 1 well was drilled in May 1990 and reached a total depth of 9,255 feet. The Lower Oligocene formation at 7,540 to 7,705 feet flow tested 90% water and 10% oil with a nominal amount of gas. A deeper zone at 7,877 to 8,010 feet flow tested 100% water. The well was later plugged and abandoned.

Coastal Energy supplied core data, well log interpretations, geologic maps, and seismic cross-sections for the Benjarong and the Songkhla Southwest prospect areas. Huddleston used this information to develop subsurface maps, which were planimetered to develop low, best, and high estimates for the Contingent resource assignments. The Contingent resource assignments were based on volumetric calculations with consideration for analogy to the Bua Ban and Songkhla A Oil Fields. A summary of the Contingent volumetric parameters appears in Table 4. Huddleston assigned geologic risk factors of 30% (see Table 12) to the two Contingent offshore oil prospects because of limited and low volume test results.

The onshore license areas had contingent gas and associated condensate resources assigned to the Pha Nok Khao and Huai Hin Lat formations in the Sinphuhorm Gas Field in Blocks EU1/E5N and L15/43. Contingent gas resources were also assigned to the Pha Nok Khao and Phu Kheng formations in the Dong Mun Gas Field in Block 27/43 and the Si That gas prospect in Block L13/48.

Page 20: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Coastal Energy Company Board of Directors March 17, 2010 Page Fourteen

Huddleston & Co., Inc.

Table 13 was developed by Huddleston to show the evolution of Contingent resource assignments relative to production, GSA contract terms, and previously discussed Proved and Probable reserve assignments for the Pha Nok Khao formation of the Sinphuhorm Gas Field in Blocks EU1 and E5N. The Contingent resource assignment for the Pha Nok Khao formation was based on volumetric calculations as shown in Table 11.

The Huai Hin Lat formation in the Sinphuhorm Gas Field lies above the Pha Nok Khao formation and underlies Blocks EU1, E5N, and L15/43. It is uncertain whether or not the Huai Hin Lat formation has ever been tested in conjunction with flow testing operations of the Pha Nok Khao formation in other Sinphuhorm wells. The Huai Hin Lat has been penetrated and logged by the drilled wells. The associated condensate yield for the formation was assumed to be 4.67 barrels per MMcf. The gas and condensate volumes for the Huai Hin Lat formation were classified as Contingent because of the terms of the GSA contract and the lack of test information.

The Pha Nok Khao formation in the Dong Mun gas prospect of Block L27/43 was drilled and tested by Esso in 1990. The DM-1 well tested 0.26 to 23.6 MMcf per day in 1990 from the Pha Nok Khao carbonate formation. The DM-2 well was also drilled in 1990 but was suspended and never tested. Both wells had significant gas shows while drilling through the upper Phu Kheng sandstone series formations. As was mentioned earlier, the DM-3 well was drilled in November 2007 and suspended in February 2008. Wireline logs show the sandstone porosities to be in the 3% to 5% range. The gas volumes for the Pha Nok Khao formation were classified as Contingent because of the lack of a GSA contract. Coastal Energy participated in drilling a fourth well on the Dong Mun structure in Block L27/43, the Phu Kheng 1. The well was drilled to a total depth of 7,891 feet and tested the two shallower intervals of the Phu Kradung sandstone and one deeper zone in the Nam Phong sandstones in August 2009. All three zones had good gas shows during drilling and logging operations; however, subsequent fracture stimulation and testing of the Nam Phong sandstones failed as a result of sealing problems. As of December 31, 2009, the operator was waiting on a hydraulic workover unit to further test the well. The assigned resources for this field (Dong Mun in Block L27/43) and formation (Phu Kheng) were carried in the Prospective category last year; however, due to the 2009 gas shows the resource volumes for this field and formation have been moved to the Contingent resource category as of December 31, 2009, without any revisions (see Table 11).

Esso and Cairn drilled and tested two wells in the Si That gas prospect area in Block L13/48. The Si That-1 well, drilled by Esso in 1983, logged a thick section of Pha Nok Khao carbonates, including two thick dolomite units. Extensive shows were encountered in the Pha Nok Khao carbonates and three DST’s were conducted. The tests confirmed traces of gas with water production. The Si That-2 well was drilled by Cairn in 1998 and was located up-dip from the Si That-1 well. The well drilled through about 1,100 feet of the Pha Nok Khao carbonates before passing into the lower Si That formation. The Pha Nok Khao formation tested at about 1.25 MMcf of gas per day. The gas volumes for the Pha Nok Khao formation were classified as Contingent because of the lack of a GSA contract. During 2009 Coastal Energy also participated in drilling the Si That 3 well in Block L13/48, which reached a total depth of 9,107 feet and encountered the Pha Nok Khao gas formation. Gas shows were seen in the reservoir interval and the log indicated a fractured carbonate section. Testing was hampered by a downhole obstruction and as of December 31, 2009, work had been suspended pending further testing. Since this field (Si That in Block L13/48) and formation (Pha Nok Khao) already had a Contingent resource assignment, its resource classification and assigned volumes were left unchanged from last year as a result of the 2009 gas shows.

The onshore Contingent gas resource assignments were based on engineering and geological data supplied by APICO. Huddleston assigned geologic risk factors between 30% and 50% to the Contingent resource volumes, as shown in Table 12.

Page 21: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Coastal Energy Company Board of Directors March 17, 2010 Page Fifteen

Huddleston & Co., Inc.

Prospective Resources: For AIM exchange purposes, the estimates for Prospective resources are summarized in Table 14 for various license blocks and associated formations. Prospective resources were assigned to ten oil prospects all located in one offshore license area, Block G5/43, and to three gas prospects located in three onshore license areas, Blocks EU1/E5N, L15/43, and L27/43.

The G5/43 offshore block contained five oil prospects in the Western Fault Terrace (“WFT”): WFT-A, B, C, D and E (Figure 7). These five WFT prospects lie on strike with the Bua Ban Oil Field. The block also contained five additional Songkhla oil prospects as shown in Figure 2. These five Songkhla prospects lie on strike with the Songkhla A Oligocene Oil Field. Coastal Energy supplied geologic maps and seismic cross-sections for the offshore oil prospect areas. Huddleston used this information to develop subsurface maps, which were planimetered to develop low, best, and high estimates for the Prospective resource assignments. The Prospective resource assignments in the Oligocene formations were based on volumetric calculations with consideration for analogy to the Bua Ban and Songkhla A Oil Fields. A summary of the volumetric parameters appears in Table 4. The oil volumes for the ten offshore prospects were classified as Prospective because none of them have been drilled to date, but represent potentially recoverable volumes from undiscovered accumulations. As summarized in Table 14, Huddleston assigned geologic risk factors between 5% and 10% to the offshore oil prospects.

The Songkhla South 1 well was drilled in April 1990 to a total depth of 9,152 feet. The well did not find any significant hydrocarbon shows in the Lower Oligocene formation and was plugged and abandoned.

In early 2010 Coastal Energy drilled the B-1 exploratory well into the offshore Songkhla S-E Oligocene and the Songkhla S-E Eocene formations that were carried in last year’s report. This complex is now called the Songkhla B area as of December 31, 2009. The B-1 exploratory well found these two prospects to be dry and they have been dropped from this year’s list of Prospective resource prospects.

Coastal Energy renamed its offshore Prospective prospect, the Songkhla S-W Oligocene prospect. It is now referred to as the Songkhla B prospect. As of the date of this report letter, Coastal Energy has drilled the B-2 exploratory well into the Oligocene formation in the Songkhla B prospect. The B-2 well was initially drilled into the eastern-most structure to a total depth of 9,606 feet and encountered seven feet of net pay in the Lower Oligocene reservoir. Coastal Energy then sidetracked the B-2 well into the western-most remaining Songkhla B structure and in early March 2010 reached a total depth of 11,073 feet and encountered twelve feet of net pay in the Lower Oligocene reservoir. Following logging operations, Coastal Energy decided that there were not enough reserves to justify a stand-alone development. The Songkhla B wells were temporarily abandoned.

Coastal Energy also renamed two other offshore Prospective prospects that were carried in last year’s report. The Songkhla West-1 Oligocene prospect is now the Songkhla Unit 2 Oligocene prospect and the Songkhla West-2 Oligocene prospect is now the Songkhla Unit 4 Oligocene prospect. Their assigned Prospective resource volumes have remained the same as last year.

Huddleston has not received any engineering or geologic information on the offshore License Block Area G5/50 as shown in Table 2. There have been no reserve or resource volumes assigned to this block in this report.

Onshore Prospective gas resource volumes were assigned to the Si That formation in the Sinphuhorm Gas Field in Blocks EU1/E5N and L15/43. The Si That formation lies immediately below the Pha Nok Khao formation and is present on the western flank of the Sinphuhorm structure. The Si That has not been tested in the Sinphuhorm Gas Field.

An onshore prospect, located in Block L27/43, was also assigned Prospective gas resource volumes. The Pha Nok Khao formation in the Southeast Dong Mun gas prospect was set up by seismic lines acquired in early 2006 by APICO and stratigraphic correlations with the wells drilled in the Dong Mun gas

Page 22: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Coastal Energy Company Board of Directors March 17, 2010 Page Sixteen

Huddleston & Co., Inc.

prospect. The gas volumes for the Pha Nok Khao formation were classified as Prospective because of the lack of drilling activity on the prospect.

The onshore Prospective resource assignments were based on engineering and geological data supplied by APICO. The Prospective gas resource assignments were based on volumetric calculations with consideration for analogy to the Pha Nok Khao formation at the Sinphuhorm Gas Field. Huddleston assigned geologic risk factors between 2% and 5% for the Prospective gas resource volumes as shown in Table 14.

As stated above, the Contingent and Prospective resource volumes contained in this report have no economic value attributable to them.

Economic Analysis

Forecast Price Case: At the request of Coastal Energy, the reserves and revenue projections contained in this report have been generated using forecast prices only. Reserves and revenues based on constant prices have not been included in this report.

For the purposes of TSX and AIM admissions, the Coastal Energy reserves discussed in this report have been prepared using a forecast price case and two sets of tax assumptions, before and after income taxes.

Projected prices for the forecast case were based on a projection of Brent crude oil as shown in Table 15. The Brent crude oil price projection as of January 1, 2010 was taken from the Gilbert Lausten Jung (“GLJ”) Petroleum Consultants website (www.gljpc.com). GLJ projected prices through 2019, then applied a 2% per year escalation for the life of the properties.

Price adjustments for the forecast price case were determined for the oil, gas, and condensate reserves using data supplied by Coastal Energy and APICO. Table 15 summarizes the forecast price assumptions that were used to generate the future revenues contained in this report. .

The forecasted prices for the offshore crude oil were determined by first calculating the differential between posted Brent crude prices versus posted Dubai crude oil prices for 2009. The calculated 2009 differential of -$0.66 per barrel was then applied to the starting 2010 GLJ price for Brent of $78.50 per barrel to yield a price of $77.84 per barrel. Additional purchaser discounts were then applied which further reduced the starting 2010 forecasted offshore oil price to $72.59 per barrel. The Dubai differential and purchaser’s discount were then applied to the 2010 GLJ Brent price projection to determine the offshore forecasted oil prices for the next ten years, throughout the life of the assigned offshore oil reserves. The highest price for the offshore crude was $95.17 per barrel in 2019 and the weighted average forecasted price for the offshore oil was $81.11 per barrel (see Appendix F).

The initial 2010 price for the onshore gas forecast price case at the Sinphuhorm Gas Field was $6.67 per Mcf. The onshore gas price was, in part, based on the pricing differential between Brent crude oil and Singapore Spot HSFO 108 CST crude oil for the six-month period from July 2009 through December 2009. The calculated 2009 differential of -$11.31 per barrel was then applied to the 2010 GLJ Brent price projection in combination with the gas price formula as specified in the GSA to determine an initial 2010 forecasted gas price of $6.76 per MMBtu. The actual 2009 Btu adjustment factor of 986.95 Btu/Scf, which was taken from 2009 Sinphuhorm gas sales statements supplied by APICO, was then applied to determine an initial 2010 forecasted gas price of $6.67 per Mcf (see Table 15). The HSFO differential, Btu adjustment factor, and the 2010 GLJ Brent price projection were used in combination with the gas price formula as specified in the GSA contract to determine the onshore forecasted gas prices for the next twenty-two years, throughout the life of the assigned onshore gas reserves. The highest price for the

Page 23: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Coastal Energy Company Board of Directors March 17, 2010 Page Seventeen

Huddleston & Co., Inc.

onshore gas was $8.62 per Mcf in 2031 and the weighted average forecasted price for the onshore gas was $7.46 per Mcf (see Appendix G).

The initial 2010 price for the onshore condensate forecast price case at the Sinphuhorm Gas Field was $69.09 per barrel. The onshore condensate price was determined by first calculating the differential between posted Brent crude prices versus posted Australian Northwest Shelf (“NWS”) crude prices for 2009. The calculated 2009 differential of -$6.01 per barrel was then applied to the starting 2010 GLJ price for Brent of $78.50 per barrel to yield a price of $72.49 per barrel. This price was further reduced by an adjustment factor of 0.953 as stated in the GSA contract to yield the starting 2010 forecasted onshore condensate price to $69.09 per barrel. The NWS pricing differential and the 0.953 GSA adjustment factor were then applied to the 2010 GLJ Brent price projection to determine the onshore forecasted condensate prices for the next twenty-two years, throughout the life of the assigned onshore condensate reserves. The highest price for the onshore condensate was $112.47 per barrel in 2031 and the weighted average forecasted price for the onshore condensate was $92.65 per barrel (see Appendix G).

A transportation fee of $1.72 per barrel for the onshore condensate was deducted in the cash flow model and shows up as “Other Costs” on the output projections. The transportation fee was held constant throughout the life of the of the assigned onshore condensate reserves.

Graphical summaries of the estimated future net production for the offshore and onshore properties are shown in Figures 8 and 9, respectively.

Operating Expenses: The monthly lease operating expenses for the offshore oil fields were supplied by Coastal Energy. APICO supplied the monthly lease operating expenses for the Hess-operated onshore Sinphuhorm Gas Field.

Tables 16 and 17 summarize the annual projected fixed and variable operating expenses for the forecast price case by reserve category for the 100% gross ownership position and the Coastal Energy net ownership position, respectively. The gross fixed operating expenses for the offshore Bua Ban Oil Field were estimated to be $54,000 per day or $19,710,000 per year. The gross fixed combined operating expenses for the offshore Songkhla A Oil Fields were estimated to be $65,500 per day or $23,907,500 per year. The gross fixed operating expenses for the onshore Sinphuhorm Gas Field were $1,075,000 per month or $12,900,000 per year.

Huddleston allocated the fixed operating expenses on a reserve category basis in the cash flow model. As is shown in Tables 16 and 17, the Proved reserve categories were burdened with a larger proportional share of allocated fixed operating expenses, followed by Probable, then Possible reserve categories.

Fixed operating expenses for the forecast price case were immediately escalated at 2% per year throughout the life of the properties.

Variable operating expenses in the form of transportation fees for the condensate production at the onshore gas field were input into the cash flow model as a dollar per barrel expense. The 2009 APICO-supplied data showed a transportation fee of $1.72 per barrel for onshore condensate. The variable operating expenses for the forecast price case were held constant throughout the life of the properties.

Capital Expenditures: Capital expenditure estimates and the scheduling of such expenditures for the offshore oil fields were supplied by Coastal Energy. The capital expenditures and the scheduling of those expenditures for the onshore Sinphuhorm Gas Field were supplied by APICO. The schedules of future operations were based on our understanding of available capital, representations by the company with respect to development operations, and our estimates of the ability to schedule such operations.

Page 24: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Coastal Energy Company Board of Directors March 17, 2010 Page Eighteen

Huddleston & Co., Inc.

Table 18 summarizes the annual projected capital expenditures for the forecast price case by reserve category for the 100% gross ownership position. Tables 19 and 20 summarize the annual projected capital expenditures for the forecast price case by field, then by reserve category, for the 100% gross ownership position and the Coastal Energy net ownership position, respectively.

Coastal Energy has budgeted workover operations at the Songkhla A Oil Field in 2010 for the A-2 and A-4 Oligocene wells along with the planned installation of larger downhole ESP’s in the A-1 and A-3 Oligocene wells. Additional plans in 2010 include the drilling of oil production wells in both the Eocene and the Oligocene wedge formations and the drilling of water injection wells in the Eocene formation. As of the date of this report all workover operations have been completed and production has been restored at the A-4 well. The A-1 and A-3 wells are also operating with larger downhole ESP’s.

The Bua Ban Oil Field development has been scheduled to begin in May 2010. First oil production is scheduled for August 2010. Installation of platforms, facilities, and the drilling of a total of twenty-one oil production wells and eleven water injection wells have been scheduled through 2011.

The current development plan for the onshore Sinphuhorm Gas Field has been designed to meet the DCQ requirement of the Nam Phong Power Station and the NGV pants. Currently, three existing wells are capable of producing the DCQ rates as stated in the GSA. Budgets supplied by APICO show that capital projects beginning in 2010 will include two workovers of existing wells, compression, and the drilling of two more gas production and associated facilities through 2014.

Abandonment expenses, both offshore and onshore, have been assigned to the producing and injection wells and field facilities in the year after the last production well depletes.

Capital expenditures for the forecast price case were immediately escalated at 2% per year for the life of the properties.

Income Tax Considerations: Table 21 summarizes the before and after tax revenues attributable to the offshore and onshore reserves for the forecast price case. The net revenues are reported before and after income taxes and have been discounted using rates of 0%, 5%, 10%, 15%, and 20%. The tax rates for the 1P, 2P and 3P reserve cases were supplied by Coastal Energy and include the effects of the Thai Petroleum Income Tax and Special Remuneratory Benefit (where applicable) for each production scenario.

Report Qualifications

General office overhead has not been deducted from future revenues.

We utilized certain geological and geophysical interpretations prepared by Coastal Energy and APICO in the calculation of the estimated reserve volumes. We have generally reviewed these interpretations and believe they are consistent with the available subsurface and geophysical information. However, in some cases the results of additional subsurface data and future geophysical operations may result in revisions to the subsurface interpretations and therefore to the estimated reserve volumes.

The estimated reserves shown herein are substantially based on volumetric calculations and may be subject to a significant level of revision as additional drilling operations are conducted and additional performance data is obtained from both existing and future completions. In some cases the projections are dependent on the results of future operations. Proved Undeveloped, Probable, and Possible reserves will be subject to successively increasing levels of variation. There is a significantly greater level of certainty associated with the Proved reserves than with both Probable and Possible reserves and Contingent and Prospective resources.

Page 25: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Coastal Energy Company Board of Directors March 17, 2010 Page Nineteen

Huddleston & Co., Inc.

The development of the reserves shown herein may be affected by a variety of factors including availability of capital, the results of previous operations, the timing of facilities construction, market conditions, fluctuations in foreign currency exchange rates, and unforeseen political risks.

THE ESTIMATED REVENUES AND PRESENT VALUE OF THESE REVENUES ARE NOT REPRESENTED AS MARKET VALUE. ESTIMATES FOR INDIVIDUAL COMPLETIONS SHOULD BE CONSIDERED IN CONTEXT WITH THE OVERALL ESTIMATED REVENUES. ACTUAL PERFORMANCE OF THE INDIVIDUAL COMPLETIONS MAY VARY CONSIDERABLY FROM THE PROJECTIONS, PARTICULARLY IN COMPARISON TO THE TOTAL COMPOSITE PRODUCTION.

We did not inspect the properties or conduct independent well tests. Ownership, product prices, and other factual data have been derived from the files of Coastal Energy. We have generally tested the validity of these data and believe the information to be correct.

Respectfully submitted,

John P. Krawtz, P.E. Texas Registered Engineering Firm F-1024

JPK:klh

Page 26: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

FIGURES 1 – 9

Page 27: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Coastal Energy Thailand AssetsFIGURE 1

Map of Thailand Onshore and Offshore License Areas

Source: Coastal Energy Company

Page 28: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Block G5/43: Fields and ProspectsFIGURE 2

Map of Thailand Offshore License Areas and Fields

Source: Coastal Energy Company

Page 29: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

FIGURE 3Map of Thailand Onshore License Areas and Fields

Sinphuhorm

L15/43 L13/48

Gas FieldSi That

Phu Kheng

Dong Mun

L27/43 SE Dong Mun

Nam PhongGas Field andPower Plant

K 1000

Source: APICO, LLC

Km 1000

Page 30: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

FIGURE 4Schematic Cross Section of Songkhla Basin Area

W EBua Ban-1 and Benjarong-1Oil in Lw Oligocene and Eocene

Songkhla-1 and Songkhla SW-1Oil in Lw Oligocene and Eocene

Western Fault Terrace Basin Centre

Oil in Lw Oligocene and Eocene O O goce e a d oce eEastern flank

untested fan playsBasin centre

untested stratigraphic plays

1

Miocene

1

Up Oligocene

0 5K

2

TWTEocene Lw Oligocene

p g

Fluvial sandstones Lacustrine source rocks Fluvial shales

0 5Km 3

Source: Coastal Energy Company/Auldana Advisors

Fan sandstones Lacustrine seal shales Basement & PreT

Page 31: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

FIGURE 5Seismic Cross Section of Sinphuhorm Gas Field

ENW WSEPhu Horm1 2

Top Upper Nam Phong Formation

Top Lower Nam Phong Formation

Indosinian 2 Unconformity

"Triassic"

"Permian"

Indosinian 1 Unconformity

Permian

Top Si That Formation

"Upper Carboniferous"

Mid-Carboniferous Unconformity

U81a405 K79a801 10 km

Source: Coastal Energy Company/NuCoastal/APICO

Page 32: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

FIGURE 6

300

400

500

600

700

60

80

100

120

140

160

CO

ND

., bbl/dGA

S, M

Mcf

/d

SINPHUHORM GAS FIELD DAILY PRODUCTION (11/06-12/09)

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

0

100

200

0

20

40

60

Nov-0

6

Dec-0

6

Jan-

07

Feb-

07

Mar-0

7

Apr-0

7

May-0

7

Jun-

07

Jul-0

7

Aug-

07

Sep-

07

Oct-0

7

Nov-0

7

Dec-0

7

Jan-

08

Feb-

08

Mar-0

8

Apr-0

8

May-0

8

Jun-

08

Jul-0

8

Aug-

08

Sep-

08

Oct-0

8

Nov-0

8

Dec-0

8

Jan-

09

Feb-

09

Mar-0

9

Apr-0

9

May-0

9

Jun-

09

Jul-0

9

Aug-

09

Sep-

09

Oct-0

9

Nov-0

9

Dec-0

9

DATE

Daily Sales Gas Net Delivered Condensate

Page 33: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

FIGURE 7Map of Offshore Prospective WFT Oil Prospects

WFT-D

WFT-A

WFT-B

WFT-C

Bua Ban

WFT-E

Source: Coastal Energy Company/Auldana Advisors

Page 34: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

FIGURE 8Coastal Energy Company - Thailand Development

Graphical Summaries of Estimated Future Net Production - Offshore Properties

1,000

10,000

100,000

E, B

O/D

AY

Estimated Future Net Oil

PDP

PUD

PROB

POSS

PDSI

As of December 31, 2009Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

FORECAST PRICE CASE

10

100

1,000

10,000

100,000

10 11 12 13 14 15 16 17 18 19

RAT

E, B

O/D

AY

YEAR

Estimated Future Net Oil

PDP

PUD

PROB

POSS

PDSI

As of December 31, 2009Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 35: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

FIGURE 9Coastal Energy Company - Thailand Development

Graphical Summaries of Estimated Future Net Production - Onshore Properties

1

10

100

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

RAT

E, M

MC

F/D

AY

YEAR

Estimated Future Net Gas

PDP

PROB

As of December 31, 2009Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

FORECAST PRICE CASE

1

10

100

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

RAT

E, M

MC

F/D

AY

YEAR

Estimated Future Net Gas

PDP

PROB

1

10

100

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

RAT

E, B

O/D

AY

YEAR

Estimated Future Net Condensate

PDPPROB

As of December 31, 2009Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 36: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

TABLES 2 – 37

Page 37: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

LicenseNumber Operator

Coastal Interest

(%)Status

LicenseExpiration

Date

LicenseArea (Km2)

Comments

1 E5N Onshore Thailand

2/2522/17 Hess 12.6% Production May 19, 2029 39 Sinphuhorm Gas Field - Currently producing since late November 2006. Average 2009 production was about 85.0 MMcf of gas per day from the combined EU1/E5N asset area

2 EU1 Onshore Thailand

2/2524/19 Hess 12.6% Production May 19, 2029 193 Sinphuhorm Gas Field - Currently producing since late November 2006. Average 2009 production was about 85.0 MMcf of gas per day from the combined EU1/E5N asset area

3 L 15/43 Onshore Thailand

9/2546/63 APICO 36.1% Exploration September 24, 2012 3,701 Block surrounds the Sinphuhorm Gas Field

4 L 27/43 Onshore Thailand

9/2546/63 APICO 36.1% Exploration September 24, 2012 3,948 Located southeast of the Sinphuhorm Gas Field

5 L 13/48 Onshore Thailand

4/2549/72 APICO 21.7% Exploration December 6, 2012 3,934 Located east of the Sinphuhorm Gas Field

6 G5/43 Offshore Thailand

Petroleum Concession Agreement (PCA) No. 7/2546/64

NuCoastal (Thailand)

Limited

100% Production and

Under Development

July 16, 2029 8,500 Songkhla A Oil Fields producing in November 2008. Bua Ban Oil Field scheduled to begin producing in mid-2010

7 G5/50 Offshore Thailand

Petroleum Concession Agreement (PCA) No. 9/2550/85

NuCoastal (Thailand)

Limited

100% Exploration December 18, 2013 554 Located in the Ko Kra Basin within the northern boundaries of Block G5/43

Asset

TABLE 2SUMMARY OF COASTAL ENERGY LICENSES AND WORKING INTERESTS - THAILAND

As of December 31, 2009

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 38: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

License Area ProvedProved

+Probable

Proved +

Probable +

Possible

ProvedProved

+Probable

Proved +

Probable +

Possible

ProvedProved

+Probable

Proved +

Probable +

Possible

Operator

Oil and Condensate (Mbbl) Offshore Block G5/43: Bua Ban Oil Field 7,183 21,800 27,800 7,183 21,800 27,800 6,597 19,576 24,886 Coastal Songkhla A Oligocene Oil Field 7,808 9,797 11,486 7,808 9,797 11,486 7,229 8,974 10,442 Coastal Songkhla A Oligocene Wedge 0 0 3,480 0 0 3,480 0 0 3,001 Coastal Songkhla A Eocene Oil Field 178 1,273 5,631 178 1,273 5,631 165 1,118 4,971 CoastalSubtotal Offshore Block G5/43 15,169 32,870 48,396 15,169 32,870 48,396 13,992 29,668 43,299

Onshore Blocks EU1/E5N: Sinphuhorm Gas Field (PNK)1 1,945 5,344 5,344 246 676 676 215 591 591 Hess

Total for Oil & Condensate 17,114 38,214 53,740 15,415 33,546 49,072 14,207 30,259 43,890 Gas (Bcf) Onshore Blocks EU1/E5N: Sinphuhorm Gas Field (PNK) 369.8 1,016.0 1,016.0 46.7 128.4 128.4 40.9 112.4 112.4 Hess

Total for Gas 369.8 1,016.0 1,016.0 46.7 128.4 128.4 40.9 112.4 112.4

Total MBOE 2 78,739 207,543 223,069 23,205 54,952 70,478 21,024 48,990 62,621

Source: Huddleston & Co., Inc.

Notes: 1. PNK = Pha Nok Khao formation in the Sinrhuhorm Gas Field 2. BOE = Barrel Oil Equivalents at 6 Mcf per barrel (MBOE = 1,000 BOE)

TABLE 3

As of December 31, 2009

100% Gross

SUMMARY OF RESERVESCoastal Energy Gross , Working, and Net Interest Reserves

Working Interest Net to Coastal Energy

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 39: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net Water OilDepth Estimate Reserve Reserve Primary Area Pay Porosity Sat FVF GOR Oil/Cond Gas 1 Rec Oil/Cond Gas 1

License Area Location Field Formation (ft) Type Class Type Product (ac) (ft) (%) (%) (rb/stb) (scf/bbl) (Mbbl) (Bcf) Factor (Mbbl) (Bcf)Block G5/43 Offshore Bua Ban Lower Oligocene 6875-7866 Low 1P Undeveloped Oil 1,772 82.4 12.6% 39.6% 1.20 140 71,832 10.1 10% 7,183 1.0

6875-7866 Best 2P Undeveloped Oil 1,772 82.4 12.6% 39.6% 1.20 140 71,832 10.1 30% 21,800 3.16875-7866 High 3P Undeveloped Oil 1,746 257.6 12.6% 39.6% 1.20 140 92,667 13.0 30% 27,800 3.9

Block G5/43 Offshore Songkhla A Lower Oligocene 7341-7537 Low 1P Prod / Und Oil 462 83.6 19.0% 30.0% 1.18 90 33,770 3.0 29.1% 9,830 0.9 Oligocene 7341-7538 Best 2P Undeveloped Oil 462 83.6 19.0% 30.0% 1.18 90 33,770 3.0 35% 11,819 1.1

7341-7539 High 3P Undeveloped Oil 462 83.6 19.0% 30.0% 1.18 90 33,770 3.0 40% 13,508 1.2

Block G5/43 Offshore Songkhla A Lower Oligocene --- Low 1P --- --- --- --- --- --- --- --- --- --- --- --- --- Oligocene --- Best 2P --- --- --- --- --- --- --- --- --- --- --- --- --- Wedge 7341 High 3P Undeveloped Oil 220 83.7 20.0% 30.0% 1.15 90 11,600 1.0 30% 3,480 0.3

Block G5/43 Offshore Songkhla A Eocene 7150-7508 Low 1P Nonprod/Und Oil 475 39.2 14.5% 35.2% 1.15 60 11,791 0.7 1.8% 214 0.0 Eocene 7150-7508 Best 2P Undeveloped Oil 541 36.8 15.0% 35.0% 1.15 60 13,092 0.8 10% 1,309 0.1

7150-7508 High 3P Undeveloped Oil 771 37.2 15.0% 35.0% 1.15 60 18,890 1.1 30% 5,667 0.3

Block G5/43 Offshore Benjarong Eocene 9315-10071 Low Contingent --- Oil 3,090 45.3 8.0% 45.0% 1.40 0 34,119 0.0 10% 3,412 0.09315-10071 Best Contingent --- Oil 3,090 45.3 10.0% 35.0% 1.40 0 50,403 0.0 15% 7,560 0.09315-10071 High Contingent --- Oil 3,090 45.3 15.0% 25.0% 1.40 0 87,236 0.0 20% 17,447 0.0

Block G5/43 Offshore Songkhla Lower Oligocene 7256-7541 Low Contingent --- Oil 923 21.7 7.0% 45.0% 1.20 0 4,996 0.0 10% 500 0.0 Southwest 7256-7541 Best Contingent --- Oil 923 29.0 9.0% 35.0% 1.20 0 10,123 0.0 15% 1,518 0.0

7256-7541 High Contingent --- Oil 923 36.2 11.0% 25.0% 1.20 0 17,844 0.0 20% 3,569 0.0

Block G5/44 Offshore WFT-A Lower Oligocene 6195-6971 Low Prospective --- Oil 2,246 41.6 10.0% 45.0% 1.10 0 36,243 0.0 10% 3,624 0.06195-6971 Best Prospective --- Oil 2,246 104.0 14.0% 35.0% 1.10 0 149,914 0.0 15% 22,487 0.06195-6971 High Prospective --- Oil 2,246 208.0 18.0% 25.0% 1.10 0 444,799 0.0 20% 88,960 0.0

Block G5/45 Offshore WFT-B Lower Oligocene 6690-7093 Low Prospective --- Oil 564 20.7 10.0% 45.0% 1.10 0 4,534 0.0 10% 453 0.06690-7093 Best Prospective --- Oil 564 51.8 14.0% 35.0% 1.10 0 18,753 0.0 15% 2,813 0.06690-7093 High Prospective --- Oil 564 103.6 18.0% 25.0% 1.10 0 55,640 0.0 20% 11,128 0.0

Block G5/46 Offshore WFT-C Lower Oligocene 4793-5365 Low Prospective --- Oil 1,897 24.4 10.0% 45.0% 1.10 0 17,983 0.0 10% 1,798 0.04793-5365 Best Prospective --- Oil 1,897 61.1 14.0% 35.0% 1.10 0 74,385 0.0 15% 11,158 0.04793-5365 High Prospective --- Oil 1,897 122.2 18.0% 25.0% 1.10 0 220,702 0.0 20% 44,140 0.0

Block G5/47 Offshore WFT-D Lower Oligocene 5157-5794 Low Prospective --- Oil 837 29.0 10.0% 45.0% 1.10 0 9,400 0.0 10% 940 0.05157-5794 Best Prospective --- Oil 837 72.4 14.0% 35.0% 1.10 0 38,881 0.0 15% 5,832 0.05157-5794 High Prospective --- Oil 837 144.8 18.0% 25.0% 1.10 0 115,361 0.0 20% 23,072 0.0

Block G5/48 Offshore WFT-E Lower Oligocene 4304-6880 Low Prospective --- Oil 1,659 91.4 10.0% 45.0% 1.10 0 58,817 0.0 10% 5,882 0.04304-6880 Best Prospective --- Oil 1,659 228.5 14.0% 35.0% 1.10 0 243,289 0.0 15% 36,493 0.04304-6880 High Prospective --- Oil 1,659 457.0 18.0% 25.0% 1.10 0 721,847 0.0 20% 144,369 0.0

Block G5/48 Offshore Songkhla Lower Oligocene 8475-8925 Low Prospective --- Oil 397 75.9 16.0% 35.0% 1.19 0 20,414 0.0 10% 2,041 0.0 North 8475-8925 Best Prospective --- Oil 397 75.9 16.0% 35.0% 1.19 0 20,414 0.0 15% 3,062 0.0

8475-8925 High Prospective --- Oil 397 75.9 16.0% 35.0% 1.19 0 20,414 0.0 20% 4,083 0.0

Block G5/48 Offshore Songkhla Lower Oligocene 8025-8325 Low Prospective --- Oil 606 108.4 16.0% 35.0% 1.20 0 44,167 0.0 10% 4,417 0.0 Unit 2 8025-8325 Best Prospective --- Oil 606 108.4 16.0% 35.0% 1.20 0 44,167 0.0 15% 6,625 0.0

8025-8325 High Prospective --- Oil 606 108.4 16.0% 35.0% 1.20 0 44,167 0.0 20% 8,833 0.0

Block G5/48 Offshore Songkhla Lower Oligocene 8400-8775 Low Prospective --- Oil 551 112.1 16.0% 35.0% 1.20 0 41,479 0.0 10% 4,148 0.0 Unit 4 8400-8775 Best Prospective --- Oil 551 112.1 16.0% 35.0% 1.20 0 41,479 0.0 15% 6,222 0.0

8400-8775 High Prospective --- Oil 551 112.1 16.0% 35.0% 1.20 0 41,479 0.0 20% 8,296 0.0

Block G5/48 Offshore Songkhla B Lower Oligocene 7650-7800 Low Prospective --- Oil 260 79.8 15.0% 35.0% 1.19 0 13,185 0.0 10% 1,318 0.07650-7800 Best Prospective --- Oil 260 79.8 15.0% 35.0% 1.19 0 13,185 0.0 15% 1,978 0.07650-7800 High Prospective --- Oil 260 79.8 15.0% 35.0% 1.19 0 13,185 0.0 20% 2,637 0.0

Block G5/48 Offshore Songkhla Lower Oligocene 6825-7050 Low Prospective --- Oil 273 71.5 16.0% 35.0% 1.19 0 13,256 0.0 10% 1,326 0.0 South 6825-7050 Best Prospective --- Oil 273 71.5 16.0% 35.0% 1.19 0 13,256 0.0 15% 1,988 0.0

6825-7050 High Prospective --- Oil 273 71.5 16.0% 35.0% 1.19 0 13,256 0.0 20% 2,651 0.0

Source: Huddleston & Co., Inc.

Notes: 1. All offshore associated gas volumes shown for comparative purposes only Offshore gas volumes will be used for lease purposes and do not contribute to reported reserve volumes, resource volumes, or revenues in this report

TABLE 4

SUMMARY OF VOLUMETRIC PARAMETERS for OFFSHORE OIL FORMATIONS

As of December 31, 2009

In-Place Reserves Recoverable Reserves

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 40: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Numberof Recovery

Reserve Reserve Producing Factor Gross NetClass Type Wells (%) (bbl) (bbl) Comment

Developed Producing 3 5,013,110 A-1, A-3, & A-8

1P Proved 29.1%

Developed Shut-In 2 2,794,110 A-2 & A-4

Proved ProvedDeveloped

Producing + Shut-In 7,807,220 7,229,210 Reserve volumes assigned to Proved

2P

Proved +

Probable Undeveloped 5 35% 11,819,472

Continue development of water injection/pressure maintenance program Install larger ESP's + higher recovery factor with water injection

Probable Undeveloped Probable Undeveloped 1,989,470 1,744,510Reserve volumes assigned to Probable Undeveloped

3P

Proved +

Probable +

Possible Undeveloped 5 40% 13,507,967 Drill additional water injector in 2012 in northern portion of field

Possible Undeveloped Possible Undeveloped 1,688,495 1,468,320Reserve volumes assigned to Possible Undeveloped

As of December 31, 2009 - Total Remaining Reserves 11,485,185 10,442,040

+ Cumulative Production through December 31, 2009 2,022,450

= Total Ultimate Reserves 13,507,635

Source: Huddleston & Co., Inc.

TABLE 5

SUMMARY OF RESERVE ASSIGNMENTS

Offshore Block G5/43 -- Songkhla A Oligocene Oil Field -- Lower Oligocene FormationAs of December 31, 2009

Estimated Remaining Reserves

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 41: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Numberof Recovery

Reserve Reserve Producing Factor Gross NetClass Type Wells (%) (bbl) (bbl) Comment

3P

Proved +

Probable +

Possible Undeveloped 3 30% 3,480,000 Drill 3 oil production wells

Possible Undeveloped Possible Undeveloped 3,480,000 3,000,700Reserve volumes assigned to Possible Undeveloped

As of December 31, 2009 - Total Remaining Reserves 3,480,000 3,000,700

+ Cumulative Production through December 31, 2009 0

= Total Ultimate Reserves 3,480,000

Source: Huddleston & Co., Inc.

TABLE 6

SUMMARY OF RESERVE ASSIGNMENTS

Offshore Block G5/43 -- Songkhla A Oligocene Wedge Oil Field -- Lower Oligocene FormationAs of December 31, 2009

Estimated Remaining Reserves

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 42: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Numberof Recovery

Reserve Reserve Producing Factor Gross NetClass Type Wells (%) (bbl) (bbl) Comment

1P Proved Developed Producing 1 1.8% 177,920 A-7

Proved Proved Developed Producing 177,920 165,100 Reserve volumes assigned to Proved

2P

Proved +

Probable Undeveloped 4 10% 1,309,223 Drill 3 oil production wells

Probable Undeveloped Probable Undeveloped 1,094,970 952,730Reserve volumes assigned to Probable Undeveloped

3P

Proved +

Probable +

Possible Undeveloped 4 30% 5,666,988 Drill 2 water injection wells + higher recovery factor with water injection

Possible Undeveloped Possible Undeveloped 4,357,765 3,852,850Reserve volumes assigned to Possible Undeveloped

As of December 31, 2009 - Total Remaining Reserves 5,630,655 4,970,680

+ Cumulative Production through December 31, 2009 36,330

= Total Ultimate Reserves 5,666,985

Source: Huddleston & Co., Inc.

TABLE 7

SUMMARY OF RESERVE ASSIGNMENTS

Offshore Block G5/43 -- Songkhla A Eocene Oil Field -- Eocene FormationAs of December 31, 2009

Estimated Remaining Reserves

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 43: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Numberof Recovery

Reserve Reserve Producing Factor Gross NetClass Type Wells (%) (bbl) (bbl) Comment

1P Proved Undeveloped 19 10% 7,183,230 19 oil production wells, 2 platforms, natural flow, no water injection

Proved Undeveloped Proved Undeveloped 7,183,230 6,597,260Reserve volumes assigned to Proved Undeveloped

2P

Proved +

Probable Undeveloped 21 30% 21,800,000

Drill 2 more oil production wells + 11 water injection wells. All 21 oil production wells with ESP's + higher recovery factor with water injection

Probable Undeveloped Probable Undeveloped 14,616,770 12,979,040Reserve volumes assigned to Probable Undeveloped

3P

Proved +

Probable +

Possible Undeveloped 21 30% 27,800,000

All 21 oil production wells with ESP's + water injection + larger reservoir bulk volume

Possible Undeveloped Possible Undeveloped 6,000,000 5,309,420Reserve volumes assigned to Possible Undeveloped

As of December 31, 2009 - Total Remaining Reserves 27,800,000 24,885,720

+ Cumulative Production through December 31, 2009 0

= Total Ultimate Reserves 27,800,000

Source: Huddleston & Co., Inc.

TABLE 8

SUMMARY OF RESERVE ASSIGNMENTS

Offshore Block G5/43 -- Bua Ban Oil Field -- Lower Oligocene FormationAs of December 31, 2009

Estimated Remaining Reserrves

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 44: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

GSAMaximum Total 2P

DCQ DCQ VolumesPd Year (MMcf/d) (MMcf/d) (MMcf/y) (MMcf/d) (MMcf/y) (MMcf/d) (MMcf/y) (MMcf/d) (MMcf/d) (MMcf/y) (MMcf/d) (MMcf/y) (MMcf/d) (MMcf/y)--- 2006 75.0 2,249 75.0 2,2491 2007 85.0 31,012 DCQ 85.0 31,0122 2008 83.1 30,320 Check 83.1 30,3203 2009 85.0 31,041 Column 85.0 31,041

94,621 94,621

4 2010 108.0 20.0 7,300 85.0 31,025 3.0 1,095 108.0 9.0 3,285 12.0 4,380 97.0 35,4055 2011 108.0 17.0 6,205 85.0 31,025 6.0 2,190 108.0 10.0 3,650 16.0 5,840 101.0 36,8656 2012 108.0 14.0 5,110 85.0 31,110 9.0 3,285 108.0 11.0 4,015 20.0 7,300 105.2 38,4107 2013 108.0 11.0 4,015 85.0 31,025 12.0 4,380 108.0 13.0 4,745 25.0 9,125 110.0 40,1508 2014 108.0 8.0 2,920 85.0 31,025 15.0 5,475 108.0 15.0 5,475 30.0 10,950 115.0 41,9759 2015 108.0 5.0 1,825 85.0 31,025 18.0 6,570 108.0 18.0 6,570 36.0 13,140 121.0 44,16510 2016 108.0 2.0 730 85.0 31,110 21.0 7,665 108.0 21.0 7,665 42.0 15,330 127.2 46,44011 2017 108.0 0.0 0 85.0 31,025 23.0 8,395 108.0 23.0 8,395 46.0 16,790 131.0 47,81512 2018 108.0 0.0 0 85.0 31,025 23.0 8,395 108.0 25.0 9,125 48.0 17,520 133.0 48,54513 2019 108.0 0.0 0 85.0 31,025 23.0 8,395 108.0 27.0 9,855 50.0 18,250 135.0 49,27514 2020 108.0 0.0 0 85.0 31,110 23.0 8,395 108.0 27.0 9,855 50.0 18,250 135.2 49,36015 2021 108.0 0.0 0 85.0 28,220 23.0 7,636 108.0 27.0 8,964 50.0 16,600 135.0 44,820

28,105 369,750 71,876 81,599 153,475 523,225

1 2021 108.0 108.0 3,564 108.0 27.0 891 135.0 4,455 135.0 4,4552 2022 108.0 108.0 39,420 108.0 27.0 9,855 135.0 49,275 135.0 49,2753 2023 108.0 108.0 39,420 108.0 27.0 9,855 135.0 49,275 135.0 49,2754 2024 108.0 108.0 39,420 108.0 27.0 9,855 135.0 49,275 135.0 49,2755 2025 108.0 108.0 39,420 108.0 27.0 9,855 135.0 49,275 135.0 49,2756 2026 108.0 108.0 39,420 108.0 27.0 9,855 135.0 49,275 135.0 49,2757 2027 108.0 108.0 39,420 108.0 27.0 9,855 135.0 49,275 135.0 49,2758 2028 108.0 108.0 39,420 108.0 27.0 9,855 135.0 49,275 135.0 49,2759 2029 108.0 108.0 39,420 108.0 27.0 9,855 135.0 49,275 135.0 49,27510 2030 108.0 108.0 39,420 108.0 27.0 9,855 135.0 49,275 135.0 49,27511 2031 108.0 108.0 35,856 108.0 27.0 8,964 135.0 44,820 135.0 44,820

394,200 98,550 492,750 492,750

369,750 466,076 180,149 646,225 1,015,975

Cumulative Gas Produced to 12/31/09 94,621 0 94,621

Total Ultimate Gas 464,371 646,225 1,110,596

PROVED + PROBABLE

Volumes Total Probable

TABLE 9GROSS GAS VOLUMES --- GAS CONTRACT SUMMARY AND SINPHUHORM GAS FIELD GAS VOLUMES

Pha Nok Khao Formation --- Blocks EU1/E5N Only

As of December 31, 2009

PTT Gas Contract Terms Nam Phong Field PROVED PROBABLE

Subtotal Actual Sales Volumes

Remaining Primary Term to Nov 28, 2021

Probable 10-year extension beginning Nov 29, 2021 to Nov 28,2031

VolumesProved Developed NGV Plant(s)

Probable Undeveloped

Producing PTT Plant Volumes

Annual gas volumes input into economic model Btu Factor = 0.986952 Btu/scf

Subtotals Primary Term

Subtotals 10-year Extension

Total Remaining Gas as of 12/31/09

Condensate yield = 5.26 BC/MMcf

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 45: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Condensate Yield

Produced Water

Cumulative Month (MMcf/d) (MMcf/month) (MMcf) (bbl/month) (bbl/d) (bbl/MMcf) (bbl/month)

Nov-06 8.6 17.2 17.2 - - - 0Dec-06 72.0 2,231.6 2,248.8 9,446 305 4.23 97Jan-07 72.0 2,231.6 4,480.3 10,430 336 4.67 608Feb-07 88.1 2,465.8 6,946.1 13,720 490 5.56 3,030Mar-07 91.5 2,837.3 9,783.4 16,789 542 5.92 1,669Apr-07 92.0 2,759.9 12,543.3 13,930 464 5.05 1,622May-07 89.2 2,765.9 15,309.2 15,673 506 5.67 1,935Jun-07 87.1 2,613.0 17,922.1 13,207 440 5.05 1,349Jul-07 76.2 2,362.1 20,284.2 15,216 491 6.44 978Aug-07 89.1 2,763.6 23,047.8 17,816 575 6.45 2,187Sep-07 72.3 2,167.8 25,215.6 9,397 313 4.33 61Oct-07 76.3 2,366.3 27,581.9 12,634 408 5.34 2,080Nov-07 84.2 2,527.2 30,109.0 14,895 497 5.89 2,863Dec-07 101.7 3,152.2 33,261.2 18,609 600 5.90 2,899Jan-08 72.6 2,250.3 35,511.5 11,426 369 5.08 1,500Feb-08 65.8 2,039.6 37,551.1 9,700 313 4.76 838Mar-08 96.6 2,995.8 40,546.9 15,585 503 5.20 3,129Apr-08 100.9 3,126.5 43,673.4 16,548 534 5.29 4,706May-08 95.5 2,960.7 46,634.1 16,314 526 5.51 1,934Jun-08 74.3 2,303.3 48,937.4 9,883 319 4.29 1,456Jul-08 87.1 2,700.2 51,637.6 16,068 518 5.95 1,744Aug-08 99.5 3,083.7 54,721.3 14,348 463 4.65 2,115Sep-08 83.1 2,574.6 57,295.9 15,093 487 5.86 1,452Oct-08 57.8 1,792.6 59,088.5 8,904 287 4.97 389Nov-08 77.9 2,413.8 61,502.3 13,644 440 5.65 2,302Dec-08 67.0 2,078.5 63,580.7 10,453 337 5.03 651Jan-09 43.6 1,351.0 64,931.8 5,943 192 4.40 127Feb-09 44.6 1,383.8 66,315.5 8,420 272 6.08 1,541Mar-09 82.3 2,552.6 68,868.1 14,580 470 5.71 2,381Apr-09 90.4 2,803.5 71,671.6 15,539 501 5.54 2,154May-09 97.5 3,022.7 74,694.3 15,068 486 4.99 2,420Jun-09 93.1 2,884.6 77,578.9 15,795 510 5.48 2,202Jul-09 92.0 2,852.3 80,431.2 15,570 502 5.46 2,243Aug-09 101.1 3,133.2 83,564.3 15,072 486 4.81 2,348Sep-09 96.5 2,992.0 86,556.3 16,323 527 5.46 2,446Oct-09 102.0 3,161.9 89,718.2 15,573 502 4.93 2,349Nov-09 75.1 2,326.6 92,044.8 11,281 364 4.85 1,133Dec-09 83.1 2,576.5 94,621.2 14,041 453 5.45 2,636TOTALS 94,621.2 502,933 5.32 67,573

TABLE 10

SINPHUHORM GAS FIELD, THAILAND

Monthly Gas and Condensate Sales (11/06 - 12/09)

Historical Gas Sales Net Delivered Condensate

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 46: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Reserve or Net Water CondensateLicense Depth Estimate Resource Reserve Primary Acres Pay Porosity Sat Temp Pressure Gas Yield GOR Oil/Cond Gas Rec Oil/Cond Gas

Area Location Field Formation (ft) / (m) Type Class Type Product (ac) (ft) (%) (%) (oF) (psi) z-Factor (bbl/MMcf) (scf/bbl) (Mbbl) (Bcf) Factor (Mbbl) (Bcf)EU1/E5N Onshore Sinphuhorm Pha Nok Khao 7320ft/2231m Low 1P + Cont. Producing Gas 13,165 688.1 2.0% 30% 182 3,742 0.9593 5.26 n/a 6,266 1,191.3 50% 3,133 595.6

7475ft/2279m Best 2P + Cont. Undeveloped Gas 14,862 869.5 3.0% 25% 182 3,742 0.9593 5.26 n/a 14,366 2,731.2 60% 8,620 1,638.78485ft/2587m High 3P + Cont. Undeveloped Gas 21,910 1,275.8 4.0% 20% 182 3,742 0.9593 5.26 n/a 44,194 8,401.9 75% 33,146 6,301.5

EU1/E5N Onshore Sinphuhorm Huai Hin Lat 6344ft/1934m Low Contingent --- Gas 6,542 8.7 3.0% 25% 182 3,742 0.9593 4.67 n/a 56 12.0 60% 34 7.27052ft/2150m Best Contingent --- Gas 17,894 55.8 3.0% 25% 182 3,742 0.9593 4.67 n/a 986 211.1 60% 592 126.77642ft/2330m High Contingent --- Gas 22,705 107.3 4.0% 20% 182 3,742 0.9593 4.67 n/a 3,420 732.3 75% 2,565 549.2

EU1/E5N Onshore Sinphuhorm Si That 7072ft/2156m Low Prospective --- Gas 7,328 36.8 1.0% 30% 182 3,742 0.9593 0 n/a 0 17.7 50% 0 8.97475ft/2279m Best Prospective --- Gas 10,229 85.4 1.5% 25% 182 3,742 0.9593 0 n/a 0 92.3 60% 0 55.48485ft/2587m High Prospective --- Gas 12,723 95.1 2.0% 20% 182 3,742 0.9593 0 n/a 0 181.9 75% 0 136.4

L15/43 Onshore Sinphuhorm Pha Nok Khao 7320ft/2231m Low Contingent --- Gas 1,073 144.3 2.0% 30% 182 3,742 0.9593 5.26 n/a 107 20.4 50% 54 10.27475ft/2279m Best Contingent --- Gas 1,004 291.3 3.0% 25% 182 3,742 0.9593 5.26 n/a 325 61.8 60% 195 37.18485ft/2587m High Contingent --- Gas 7,246 486.9 4.0% 20% 182 3,742 0.9593 5.26 n/a 5,578 1,060.5 75% 4,183 795.3

L15/43 Onshore Sinphuhorm Huai Hin Lat 6344ft/1934m Low Contingent --- Gas 0 0.0 0.0% 0% 0 0 0 0 n/a 0 0.0 0% 0 0.07052ft/2150m Best Contingent --- Gas 506 21.0 3.0% 25% 182 3,742 0.9593 4.67 n/a 10 2.2 60% 6 1.37642ft/2330m High Contingent --- Gas 4,698 40.4 4.0% 20% 182 3,742 0.9593 4.67 n/a 266 57.0 75% 200 42.8

L15/43 Onshore Sinphuhorm Si That 7072ft/2156m Low Prospective --- Gas 0 0.0 0.0% 0% 0 0 0 0 n/a 0 0.0 0% 0 0.07475ft/2279m Best Prospective --- Gas 712 45.8 1.5% 25% 182 3,742 0.9593 0 n/a 0 3.4 60% 0 2.18485ft/2587m High Prospective --- Gas 5,089 77.4 2.0% 20% 182 3,742 0.9593 0 n/a 0 59.2 75% 0 44.4

L27/43 Onshore Dong Mun Pha Nok Khao 9000ft/2743m Low Contingent --- Gas 2,133 239.9 3.0% 25% 192.4 5,993 1.0832 0 n/a 0 150.9 50% 0 75.49180ft/2798m Best Contingent --- Gas 2,807 291.2 3.0% 25% 192.4 5,993 1.0832 0 n/a 0 241.1 60% 0 144.79360ft/2853m High Contingent --- Gas 6,937 277.7 3.0% 25% 192.4 5,993 1.0832 0 n/a 0 568.3 75% 0 426.3

L27/43 Onshore Dong Mun Phu Kheng: 1800ft/549m Low Contingent --- Gas 115,858 67.6 3.0% 40% 192.4 4,195 0.904 0 n/a 0 1,700.0 50% 0 850.0 3 Sandstone to Best Contingent --- Gas 115,858 67.6 4.0% 40% 192.4 4,195 0.904 0 n/a 0 2,266.7 60% 0 1,360.0 Reservoirs 7700ft/2347m High Contingent --- Gas 115,858 67.6 5.0% 40% 192.4 4,195 0.904 0 n/a 0 2,833.4 75% 0 2,125.1

L27/43 Onshore SE Dong Mun Pha Nok Khao 9000ft/2742m Low Prospective --- Gas 2,436 62 3.0% 25% 192.4 5,000 1.006 0 n/a 0 40.1 50% 0 20.09000ft/2742m Best Prospective --- Gas 4,935 97.9 3.0% 25% 192.4 5,000 1.006 0 n/a 0 128.1 60% 0 76.99000ft/2742m High Prospective --- Gas 11,911 137.2 4.0% 25% 192.4 5,000 1.006 0 n/a 0 577.7 75% 0 433.2

L13/48 Onshore Si That Pha Nok Khao 10600ft/3233m Low Contingent --- Gas 19,873 53.9 2.0% 30% 166 3,903 0.913 0 n/a 0 158.2 50% 0 79.110600ft/3233m Best Contingent --- Gas 48,960 62.4 3.0% 25% 166 3,903 0.913 0 n/a 0 725..9 60% 0 435.510600ft/3233m High Contingent --- Gas 71,143 62.8 4.0% 20% 166 3,903 0.913 0 n/a 0 1,509.9 75% 0 1,132.4

Source: Huddleston & Co., Inc.

TABLE 11

SUMMARY OF VOLUMETRIC PARAMETERS for ONSHORE GAS FORMATIONS

As of December 31, 2009

In-Place Reserves Recoverable Reserves

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 47: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Coastal Geologic

License Area Prospect (Reservoir)

Low Estimate

Best Estimate

High Estimate

Low Estimate

Best Estimate

High Estimate

Energy Net Revenue Interest

Risk Factor1 Operator

Oil and Condensate (Mbbl) Offshore Block G5/43: Benjarong (Eocene) 3,412 7,560 17,447 3,071 6,701 15,352 0.900000 30% Coastal Songkhla Southwest (Lwr Oligocene) 500 1,518 3,569 468 1,367 3,212 0.937500 30% CoastalSubtotal Offshore Block G5/43 3,912 9,079 21,016 3,539 8,067 18,564

Onshore Blocks EU1/E5N: Sinphuhorm (PNK)2 - from Table 13 685 2,773 27,299 76 306 3,010 0.110250 50% Hess Sinphuhorm (HHL)3 34 592 2,565 4 65 283 0.110250 50% HessSubtotal Onshore Blocks EU1/E5N 719 3,365 29,864 79 371 3,293

Onshore Block L15/43 Sinphuhorm (PNK) 54 195 4,183 17 62 1,321 0.315875 30% APICO Sinphuhorm (HHL) 0 6 200 0 2 63 0.315875 30% APICOSubtotal Onshore Block L15/43 54 201 4,383 17 63 1,384

Total for Oil & Condensate 4,685 12,645 55,263 3,635 8,502 23,241 Gas (Bcf) Onshore Blocks EU1/E5N: Sinphuhorm (PNK) - from Table 13 131.2 528.1 5,190.9 14.5 58.2 572.3 0.110250 50% Hess Sinphuhorm (HHL) 7.2 126.7 549.2 0.8 14.0 60.5 0.110250 50% HessSubtotal Onshore Blocks EU1/E5N 138.4 654.8 5,740.1 15.3 72.2 632.8

Onshore Block L15/43 Sinphuhorm (PNK) 10.2 37.1 795.3 3.2 11.7 251.2 0.315875 30% APICO Sinphuhorm (HHL) 0.0 1.3 42.8 0.0 0.4 13.5 0.315875 30% APICOSubtotal Onshore Block L15/43 10.2 38.4 838.1 3.2 12.1 264.7

Onshore Block L13/48 Si That (PNK) 79.1 435.5 1,132.4 15.0 82.7 215.0 0.189875 30% APICOSubtotal Onshore Block L13/48 79.1 435.5 1,132.4 15.0 82.7 215.0

Onshore Block L27/43 Dong Mun (PNK) 75.4 144.7 426.3 23.8 45.7 134.7 0.315875 30% APICO Dong Mun (Phu Kheng) 4 850.0 1,360.0 2,125.1 268.5 429.6 671.3 0.315875 30% APICOSubtotal Onshore Block L27/43 925.4 1,504.7 2,551.4 292.3 475.3 806.0

Total for Gas 1,153.1 2,633.4 10,262.0 325.8 642.3 1,918.6

Total MBOE 5 196,867.9 451,544.8 1,765,596.4 57,938.2 115,554.9 342,999.3

Source: Huddleston & Co., Inc.

Notes: 1. Geologic Risk Factor for Contingent Resources means the estimated chance or probability that the volumes will be commercially extracted. 2. PNK = Pha Nok Khao formation 3. HHL = Huai Hin Lat formation 4. Dong Mun (Phu Kheng) drilled and tested by Phu Kheng 1 well in 2009 5. BOE = Barrel Oil Equivalents at 6 Mcf per barrel (MBOE = 1,000 BOE)

TABLE 12

As of December 31, 2009

Gross

SUMMARY OF CONTINGENT RESOURCESGross Resource Volumes and Coastal Energy Net Resource Volumes

Net to Coastal Energy

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 48: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Reserve Volumes Low Estimate

Best Estimate

High Estimate

Low Estimate

Best Estimate

High Estimate

Estimated Ultimate RecoverableReserves from Volumetrics 595.6 1,638.7 6,301.5 3,133 8,620 33,146

- deduct Prior Production (94.6) (94.6) (94.6) (503) (503) (503)

Remaining Recoverable Reservesas of December 31, 2009 501.0 1,544.1 6,206.9 2,630 8,117 32,643

- deduct Proved reserve volumes (369.8) (369.8) (369.8) (1,945) (1,945) (1,945)

Remaining after deducting Provedreserve volumes 131.2 1,174.3 5,837.1 685 6,172 30,698

- deduct Probable reserve volumes 0.0 (646.2) (646.2) 0 (3,399) (3,399)

Remaining after deducting Probablereserve volumes:

These remaining volumes are assigned as Contingent Resourcesas of December 31, 2009 (see Table 12) 131.2 528.1 5,190.9 685 2,773 27,299

Source: Huddleston & Co., Inc.Note: 1. Condensate Yield = 5.26 barrels per MMcf

TABLE 13

As of December 31, 2009

Gross Gas, Bcf

Assignment of Contingent Resources

Gross Volumes Only

Gross Condensate, Mbbl 1

for Blocks EU1/E5N Sinphuhorm Gas Field - Pha Nok Khao Formation

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 49: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Coastal Geologic

License Area Prospect (Reservoir)

Low Estimate

Best Estimate

High Estimate

Low Estimate

Best Estimate

High Estimate

Energy Net Revenue Interest

Risk Factor1 Operator

Oil and Condensate (Mbbl) Offshore Block G5/43: WFT-A (Lwr Oligocene) 3,624 22,487 88,960 3,262 19,767 77,930 0.900000 5% Coastal WFT-B (Lwr Oligocene) 453 2,813 11,128 408 2,473 9,748 0.900000 5% Coastal WFT-C (Lwr Oligocene) 1,798 11,158 44,140 1,618 9,808 38,668 0.900000 5% Coastal WFT-D Oil (Lwr Oligocene) 940 5,832 23,072 846 5,127 20,212 0.900000 5% Coastal WFT-E (Lwr Oligocene) 5,882 36,493 144,369 5,294 32,079 126,470 0.900000 5% Coastal Songkhla North (Oligocene) 2,041 3,062 4,083 1,837 2,756 3,675 0.900000 10% Coastal Songkhla Unit 2 (Oligocene) 4,417 6,625 8,833 3,975 5,963 7,950 0.900000 10% Coastal Songkhla Unit 4 (Oligocene) 4,148 6,222 8,296 3,733 5,600 7,466 0.900000 10% Coastal Songkhla B (Oligocene) 1,318 1,978 2,637 1,187 1,780 2,373 0.900000 10% Coastal Songkhla South (Oligocene) 1,326 1,988 2,651 1,193 1,790 2,386 0.900000 10% CoastalSubtotal Offshore Block G5/43 25,948 98,658 338,170 23,353 87,140 296,879

Total for Oil & Condensate 25,948 98,658 338,170 23,353 87,140 296,879

Gas (Bcf) Onshore Blocks EU1/E5N: Sinphuhorm (Si That) 8.9 55.4 136.4 1.0 6.1 15.0 0.110250 5% Hess

Onshore Block L15/43 Sinphuhorm (Si That) 0.0 2.1 44.4 0.0 0.7 14.0 0.315875 5% APICO

Onshore Block L27/43 SE Dong Mun (PNK) 20.0 76.9 433.2 6.3 24.3 136.8 0.315875 2% APICO

Total for Gas 28.9 134.4 614.0 7.3 31.1 165.9

Total MBOE 2 30,764 121,058 440,504 24,569 92,317 324,529

Source: Huddleston & Co., Inc.

Notes: 1. Geologic Risk Factor for Prospective Resources means the chance or probability of discovering hydrocarbons in sufficient quantity for them to be tested to the surface. This is the chance or probability of Prospective Resources maturing into Contingent Resources 2. BOE = Barrel Oil Equivalents at 6 Mcf per barrel (MBOE = 1,000 BOE)

TABLE 14

SUMMARY OF PROSPECTIVE RESOURCESGross Resource Volumes and Coastal Energy Net Resource Volumes

As of December 31, 2009

Gross Net to Coastal Energy

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 50: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Estimated PTT Gas BtuDifferential Dubai Sales Differential Adjustment Sales Contract Btu Adjusted

WTI 1 Brent 1 To Brent Price Price To Brent Factor Price Price Factor PricePd Year ($/bbl) ($/bbl) ($/bbl) ($/bbl) ($/bbl) ($/bbl) (fraction) ($/bbl) ($/MMBtu) (Btu/scf) ($/Mcf)1 2010 80.00 78.50 (0.66) 77.84 72.59 (6.01) 0.953 69.09 6.76 0.987 6.672 2011 83.00 81.50 (0.66) 80.84 76.59 (6.01) 0.953 71.95 7.01 0.987 6.923 2012 86.00 84.50 (0.66) 83.84 79.59 (6.01) 0.953 74.80 6.48 0.987 6.394 2013 89.00 87.50 (0.66) 86.84 82.59 (6.01) 0.953 77.66 6.70 0.987 6.615 2014 92.00 90.50 (0.66) 89.84 85.59 (6.01) 0.953 80.52 6.92 0.987 6.836 2015 93.84 92.34 (0.66) 91.68 87.43 (6.01) 0.953 82.28 7.06 0.987 6.977 2016 95.72 94.22 (0.66) 93.56 89.31 (6.01) 0.953 84.07 7.07 0.987 6.988 2017 97.64 96.14 (0.66) 95.48 91.23 (6.01) 0.953 85.90 7.21 0.987 7.129 2018 99.59 98.09 (0.66) 97.43 93.18 (6.01) 0.953 87.76 7.35 0.987 7.26

10 2019 101.58 100.08 (0.66) 99.42 95.17 (6.01) 0.953 89.65 7.50 0.987 7.4011 2020 90.54 7.21 0.987 7.1112 2021 92.36 7.33 0.987 7.2413 2022 94.20 7.46 0.987 7.3614 2023 96.08 7.59 0.987 7.4915 2024 98.01 7.72 0.987 7.6216 2025 99.97 7.86 0.987 7.7617 2026 101.97 8.00 0.987 7.8918 2027 104.01 8.14 0.987 8.0319 2028 106.09 8.28 0.987 8.1720 2029 108.21 8.43 0.987 8.3221 2030 110.37 8.58 0.987 8.4722 2031 112.47 8.73 0.987 8.62

Notes: 1. Forecasted prices as of January 2010 through 2019 were taken from Gilbert Lausten Jung Petroleum Consultants website (www.gljpc.com)

Prices taken fromCash Flow Reports

shore crude oil price projections end in 2as oil reserves deplete

TABLE 15

FORECAST CASEGas, Crude Oil and Condensate Price Assumptions and Calculations

Thailand Onshore Gas Price

Begin escalating at 2% per year

Effective December 31, 2009

at 2% per year

Thailand OnshoreThailand OffshoreCrude Oil Price

Begin escalating

Condensate Price

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 51: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Fixed Variable Total Fixed Variable Total Fixed Variable Total Fixed Variable Total Fixed Variable TotalPd Year (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$)1 2010 45,514 281 45,795 0 40 40 45,514 320 45,834 0 0 2,219 45,514 320 45,8342 2011 58,219 281 58,499 0 53 53 58,219 334 58,552 0 0 336 58,219 334 58,5523 2012 59,373 281 59,655 11 66 77 59,384 348 59,732 0 0 868 59,384 348 59,7324 2013 60,276 281 60,557 295 83 378 60,571 363 60,934 0 0 819 60,571 363 60,9345 2014 39,782 281 40,063 21,502 99 21,601 61,285 380 61,664 498 0 623 61,782 380 62,1626 2015 40,366 281 40,646 21,977 119 22,096 62,343 400 62,742 675 0 481 63,018 400 63,4177 2016 24,771 281 25,053 18,539 139 18,677 43,310 420 43,730 20,970 0 3,296 64,280 420 64,7008 2017 15,267 281 15,547 0 152 152 15,267 433 15,699 47,734 0 7,065 63,000 433 63,4339 2018 15,264 281 15,545 0 159 159 15,264 439 15,703 28,289 0 16,296 43,553 439 43,99210 2019 15,569 281 15,850 0 165 165 15,569 446 16,015 10,090 0 12,062 25,659 446 26,10511 2020 15,881 281 16,162 0 165 165 15,881 447 16,328 0 0 9,324 15,881 447 16,32812 2021 14,745 255 15,000 1,453 190 1,643 16,198 446 16,644 0 0 0 16,198 446 16,64413 2022 0 0 0 16,522 446 16,968 16,522 446 16,968 0 0 0 16,522 446 16,96814 2023 0 0 0 16,853 446 17,298 16,853 446 17,298 0 0 0 16,853 446 17,29815 2024 0 0 0 17,190 447 17,637 17,190 447 17,637 0 0 0 17,190 447 17,63716 2025 0 0 0 17,534 446 17,980 17,534 446 17,980 0 0 0 17,534 446 17,98017 2026 0 0 0 17,884 446 18,330 17,884 446 18,330 0 0 0 17,884 446 18,33018 2027 0 0 0 18,242 446 18,688 18,242 446 18,688 0 0 0 18,242 446 18,68819 2028 0 0 0 18,607 447 19,054 18,607 447 19,054 0 0 0 18,607 447 19,05420 2029 0 0 0 18,979 446 19,425 18,979 446 19,425 0 0 0 18,979 446 19,42521 2030 0 0 0 19,359 446 19,804 19,359 446 19,804 0 0 0 19,359 446 19,80422 2031 0 0 0 17,863 403 18,266 17,863 403 18,266 0 0 0 17,863 403 18,26623 2032 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Totals 405,027 3,345 408,372 242,810 5,847 248,656 647,837 9,192 657,028 108,255 0 53,389 756,092 9,192 765,284

TABLE 16

SUMMARY OF LEASE OPERATING EXPENSES

As of December 31, 2009Forecast Price Case --- 100% Interests --- Combined Onshore and Offshore Properties

PROVED + PROBABLE + POSSIBLEPROVED PROBABLE POSSIBLEPROVED + PROBABLE

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 52: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Fixed Variable Total Fixed Variable Total Fixed Variable Total Fixed Variable Total Fixed Variable TotalPd Year (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$)1 2010 34,133 35 34,169 0 5 5 34,133 40 34,174 0 0 0 34,133 40 34,1742 2011 46,611 35 46,646 0 7 7 46,611 42 46,653 0 0 0 46,611 42 46,6533 2012 47,533 35 47,568 11 8 19 47,544 44 47,587 0 0 0 47,544 44 47,5874 2013 48,199 35 48,234 295 10 306 48,494 46 48,540 0 0 0 48,494 46 48,5405 2014 27,463 35 27,499 21,502 13 21,515 48,966 48 49,014 498 0 498 49,463 48 49,5116 2015 27,801 35 27,836 21,977 15 21,992 49,778 51 49,828 675 0 675 50,453 51 50,5037 2016 11,954 35 11,990 18,539 18 18,556 30,493 53 30,546 20,970 0 20,970 51,463 53 51,5168 2017 2,193 35 2,229 0 19 19 2,193 55 2,248 47,734 0 47,734 49,927 55 49,9829 2018 1,930 35 1,965 0 20 20 1,930 56 1,985 28,289 0 28,289 30,219 56 30,27410 2019 1,968 35 2,004 0 21 21 1,968 56 2,025 10,090 0 10,090 12,058 56 12,11511 2020 2,008 35 2,043 0 21 21 2,008 56 2,064 0 0 0 2,008 56 2,06412 2021 1,864 32 1,896 184 24 208 2,048 56 2,104 0 0 0 2,048 56 2,10413 2022 0 0 0 2,089 56 2,145 2,089 56 2,145 0 0 0 2,089 56 2,14514 2023 0 0 0 2,131 56 2,187 2,131 56 2,187 0 0 0 2,131 56 2,18715 2024 0 0 0 2,173 57 2,230 2,173 57 2,230 0 0 0 2,173 57 2,23016 2025 0 0 0 2,217 56 2,273 2,217 56 2,273 0 0 0 2,217 56 2,27317 2026 0 0 0 2,261 56 2,317 2,261 56 2,317 0 0 0 2,261 56 2,31718 2027 0 0 0 2,306 56 2,362 2,306 56 2,362 0 0 0 2,306 56 2,36219 2028 0 0 0 2,352 57 2,409 2,352 57 2,409 0 0 0 2,352 57 2,40920 2029 0 0 0 2,399 56 2,456 2,399 56 2,456 0 0 0 2,399 56 2,45621 2030 0 0 0 2,447 56 2,504 2,447 56 2,504 0 0 0 2,447 56 2,50422 2031 0 0 0 2,258 51 2,309 2,258 51 2,309 0 0 0 2,258 51 2,30923 2032 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Totals 253,657 423 254,079 85,141 739 85,880 338,798 1,162 339,959 108,255 0 108,255 447,053 1,162 448,215

TABLE 17

SUMMARY OF LEASE OPERATING EXPENSES

As of December 31, 2009Forecast Price Case --- Net to Coastal Energy --- Combined Offshore and Onshore Properties

PROVED + PROBABLE + POSSIBLEPROVED PROBABLE POSSIBLEPROVED + PROBABLE

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 53: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Proved+

Proved Probable+ +

Proved Probable Probable Possible PossiblePd Year (M$) (M$) (M$) (M$) (M$)1 2010 114,378 23,762 138,140 18,248 156,3882 2011 15,690 43,356 59,046 0 59,0463 2012 27,738 21,014 48,752 3,152 51,9044 2013 21,541 14,468 36,008 0 36,0085 2014 109 0 109 0 1096 2015 0 0 0 0 07 2016 0 0 0 0 08 2017 0 0 0 0 09 2018 4,496 8,992 13,489 0 13,48910 2019 0 0 0 0 011 2020 3,939 1,231 5,170 1,477 6,64812 2021 0 0 0 0 013 2022 5,859 0 5,859 0 5,85914 2023 0 0 0 0 015 2024 0 0 0 0 016 2025 0 0 0 0 017 2026 0 0 0 018 2027 0 0 0 0 019 2028 0 0 0 0 020 2029 0 0 0 0 021 2030 0 0 0 0 022 2031 0 0 0 0 023 2032 0 781 781 0 781

Totals 193,751 113,604 307,355 22,878 330,232

TABLE 18

SUMMARY OF CAPITAL EXPENDITURES BY RESERVE CLASSIFICATION

As of December 31, 2009

Forecast Price Case - 100% Interests - Combined Offshore and Onshore Properties

Reserve Classification

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 54: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Proved Proved Proved Proved+ + + +

Proved Probable Proved Probable Proved Probable Proved Probable+ + + + + + + +

Proved Probable Probable Possible Possible Proved Probable Probable Possible Possible Proved Probable Probable Possible Possible Proved Probable Probable Possible PossiblePd Year (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$)1 2010 95,725 8,614 104,338 0 104,338 5,020 15,148 20,168 18,248 38,417 13,633 0 13,633 0 13,633 114,378 23,762 138,140 18,248 156,3882 2011 7,140 43,356 50,496 0 50,496 0 0 0 0 0 8,550 0 8,550 0 8,550 15,690 43,356 59,046 0 59,0463 2012 0 0 0 0 0 0 0 0 3,152 3,152 27,738 21,014 48,752 0 48,752 27,738 21,014 48,752 3,152 51,9044 2013 0 0 0 0 0 0 0 0 0 0 21,541 14,468 36,008 0 36,008 21,541 14,468 36,008 0 36,0085 2014 0 0 0 0 0 0 0 0 0 0 109 0 109 0 109 109 0 109 0 1096 2015 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 07 2016 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 08 2017 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 09 2018 4,496 8,992 13,489 0 13,489 0 0 0 0 0 0 0 0 0 0 4,496 8,992 13,489 0 13,48910 2019 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 011 2020 0 0 0 0 0 3,939 1,231 5,170 1,477 6,648 0 0 0 0 0 3,939 1,231 5,170 1,477 6,64812 2021 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 013 2022 0 0 0 0 0 0 0 0 0 0 5,859 0 5,859 0 5,859 5,859 0 5,859 0 5,85914 2023 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 015 2024 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 016 2025 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 017 2026 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 018 2027 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 019 2028 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 020 2029 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 021 2030 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 022 2031 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 023 2032 0 0 0 0 0 0 0 0 0 0 0 781 781 0 781 0 781 781 0 781

Totals 107,361 60,962 168,323 0 168,323 8,959 16,380 25,339 22,878 48,216 77,431 36,262 113,693 0 113,693 193,751 113,604 307,355 22,878 330,232

TABLE 19

SUMMARY OF CAPITAL EXPENDITURES BY FIELDForecast Price Case --- 100% Interests --- Offshore, Onshore, and Combined

As of December 31, 2009

BUA BAN OIL FIELD SONGKHLA A OIL FIELDS SINPHUHORM GAS FIELD TOTAL -- ALL FIELDS

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 55: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Proved Proved Proved Proved+ + + +

Proved Probable Proved Probable Proved Probable Proved Probable+ + + + + + + +

Proved Probable Probable Possible Possible Proved Probable Probable Possible Possible Proved Probable Probable Possible Possible Proved Probable Probable Possible PossiblePd Year (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$) (M$)1 2010 95,725 8,614 104,338 0 104,338 5,020 15,148 20,168 18,248 38,417 1,724 0 1,724 0 1,724 102,468 23,762 126,230 18,248 144,4792 2011 7,140 43,356 50,496 0 50,496 0 0 0 0 0 1,081 0 1,081 0 1,081 8,221 43,356 51,577 0 51,5773 2012 0 0 0 0 0 0 0 0 3,152 3,152 3,507 2,657 6,163 0 6,163 3,507 2,657 6,163 3,152 9,3154 2013 0 0 0 0 0 0 0 0 0 0 2,723 1,829 4,552 0 4,552 2,723 1,829 4,552 0 4,5525 2014 0 0 0 0 0 0 0 0 0 0 14 0 14 0 14 14 0 14 0 146 2015 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 07 2016 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 08 2017 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 09 2018 4,496 8,992 13,489 0 13,489 0 0 0 0 0 0 0 0 0 0 4,496 8,992 13,489 0 13,48910 2019 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 011 2020 0 0 0 0 0 3,939 1,231 5,170 1,477 6,648 0 0 0 0 0 3,939 1,231 5,170 1,477 6,64812 2021 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 013 2022 0 0 0 0 0 0 0 0 0 0 741 0 741 0 741 741 0 741 0 74114 2023 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 015 2024 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 016 2025 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 017 2026 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 018 2027 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 019 2028 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 020 2029 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 021 2030 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 022 2031 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 023 2032 0 0 0 0 0 0 0 0 0 0 0 99 99 0 99 0 99 99 0 99

Totals 107,361 60,962 168,323 0 168,323 8,959 16,380 25,339 22,878 48,216 9,789 4,584 14,373 0 14,373 126,109 81,926 208,035 22,878 230,913

TABLE 20

SUMMARY OF CAPITAL EXPENDITURES BY FIELDForecast Price Case --- Net to Coastal Energy --- Offshore, Onshore, and Combined

As of December 31, 2009

BUA BAN OIL FIELD SONGKHLA A OIL FIELDS SINPHUHORM GAS FIELD TOTAL -- ALL FIELDS

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 56: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Offshore - Net to Coastal EnergyReserve Category 0% 5% 10% 15% 20% 0% 5% 10% 15% 20%

Total 1P 746,429 673,506 609,319 552,803 502,981 399,903 371,334 345,188 321,393 299,791

Total 2P 1,873,327 1,647,405 1,454,849 1,290,206 1,148,926 676,706 624,636 577,126 534,044 495,092

Total 3P 2,893,337 2,477,038 2,134,640 1,851,158 1,614,924 898,869 812,208 737,096 671,703 614,488

Onshore - Net to Coastal EnergyReserve Category 0% 5% 10% 15% 20% 0% 5% 10% 15% 20%

Total 1P 270,037 201,270 154,563 122,141 99,124 180,974 137,400 107,390 86,288 71,126

Total 2P 832,596 476,351 299,215 204,518 150,025 544,158 317,558 203,475 141,774 105,881

Total 3P 832,596 476,351 299,215 204,518 150,025 544,158 317,558 203,475 141,774 105,881

Combined - Net to Coastal EnergyReserve Category 0% 5% 10% 15% 20% 0% 5% 10% 15% 20%

Total 1P 1,016,466 874,776 763,882 674,945 602,106 580,877 508,734 452,579 407,681 370,917

Total 2P 2,705,924 2,123,756 1,754,065 1,494,725 1,298,952 1,220,864 942,195 780,601 675,818 600,974

Total 3P 3,725,933 2,953,389 2,433,855 2,055,677 1,764,949 1,443,027 1,129,767 940,572 813,476 720,369

Source: Huddleston & Co., Inc.

Future Net Revenues Discounted at Future Net Revenues Discounted at

Net Revenues Before Income Taxes, M$ (App H) Net Revenues After Income Taxes, M$

Net Revenues After Income Taxes, M$Future Net Revenues Discounted at Future Net Revenues Discounted at

Future Net Revenues Discounted at Future Net Revenues Discounted at

TABLE 21COMPARISON OF BEFORE AND AFTER INCOME TAX NET REVENUES

Forecast Price CaseAs of December 31, 2009

Net Revenues Before Income Taxes, M$ (App F)

Net Revenues Before Income Taxes, M$ (App G) Net Revenues After Income Taxes, M$

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 57: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Gross Net Gross Net Gross Net Gross NetReserve Category (Mbbl) (Mbbl) (Bcf) (Bcf) (Mbbl) (Mbbl) (MBOE) (MBOE)

Proved: Offshore Developed Producing (App F) 5,191 4,807 0.0 0.0 0 0 5,191 4,807 Offshore Developed Shut-In (App F) 2,794 2,587 0.0 0.0 0 0 2,794 2,587 Offshore Undeveloped (App F) 7,183 6,597 0.0 0.0 0 0 7,183 6,597Total Proved - 1P 15,169 13,992 0 0 0 0 15,169 13,992

Probable: Offshore Undeveloped (App F) 17,701 15,676 0.0 0.0 0 0 17,701 15,676Total Probable 17,701 15,676 0.0 0.0 0 0 17,701 15,676

Total Proved Plus Probable - 2P 32,870 29,668 0.0 0.0 0 0 32,870 29,668

Crude Oil Natural Gas

As of December 31, 2009

Condensate

TABLE 22

AIF - Offshore Reserves Data - Forecast Prices and Costs

(Natural Gas Liquids) TotalsLight and Medium

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 58: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Reserve Category 0% 5% 10% 15% 20% 0% 5% 10% 15% 20%

Proved: Offshore Developed Producing (App F) 221.6 205.4 191.0 178.3 167.0 157.5 149.5 142.2 135.5 129.4 Offshore Developed Shut-In (App F) 185.8 168.0 152.7 139.5 128.1 124.7 115.3 107.2 100.0 93.7 Offshore Undeveloped (App F) 339.0 300.1 265.6 235.0 207.8 117.6 106.5 95.9 85.9 76.7Total Proved - 1P 746.4 673.5 609.3 552.8 503.0 399.9 371.3 345.2 321.4 299.8

Probable: Offshore Undeveloped (App F) 1,126.9 973.9 845.5 737.4 645.9 276.8 253.3 231.9 212.7 195.3Total Probable 1,126.9 973.9 845.5 737.4 645.9 276.8 253.3 231.9 212.7 195.3

Total Proved Plus Probable - 2P 1,873.3 1,647.4 1,454.8 1,290.2 1,148.9 676.7 624.6 577.1 534.0 495.1

Before Income Taxes, Discounted at After Income Taxes, Discounted atNet Present Values of Future Net Revenue, $ Millions

TABLE 23

AIF - Offshore Net Present Value of Future Net Revenues - Forecast Prices and Costs As of December 31, 2009

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 59: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Gross Net Gross Net Gross Net Gross NetReserve Category (Mbbl) (Mbbl) (Bcf) (Bcf) (Mbbl) (Mbbl) (MBOE) (MBOE)

Proved: Offshore Developed Producing (App F) 5,191 4,807 0.0 0.0 0 0 5,191 4,807 Onshore Developed Producing (App G) 0 0 369.8 40.9 1,945 215 63,570 7,032 Offshore Developed Shut-In (App F) 2,794 2,587 0.0 0.0 0 0 2,794 2,587 Offshore Undeveloped (App F) 7,183 6,597 0.0 0.0 0 0 7,183 6,597Total Proved - 1P 15,169 13,992 370 41 1,945 215 78,739 21,024

Probable: Offshore Undeveloped (App F) 17,701 15,676 0.0 0.0 0 0 17,701 15,676 Onshore Undeveloped (App G) 0 0 646.2 71.5 3,399 376 111,103 12,290Total Probable 17,701 15,676 646.2 71.5 3,399 376 128,805 27,967

Total Proved Plus Probable - 2P 32,870 29,668 1,016.0 112.4 5,344 591 207,543 48,990

Crude Oil Natural Gas

As of December 31, 2009

Condensate

TABLE 24

AIF - Consolidated Reserves Data - Forecast Prices and Costs

(Natural Gas Liquids) TotalsLight and Medium

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 60: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Reserve Category 0% 5% 10% 15% 20% 0% 5% 10% 15% 20%

Proved: Offshore Developed Producing (App F) 221.6 205.4 191.0 178.3 167.0 157.5 149.5 142.2 135.5 129.4 Onshore Developed Producing (App G) 270.0 201.3 154.6 122.1 99.1 181.0 137.4 107.4 86.3 71.1 Offshore Developed Shut-In (App F) 185.8 168.0 152.7 139.5 128.1 124.7 115.3 107.2 100.0 93.7 Offshore Undeveloped (App F) 339.0 300.1 265.6 235.0 207.8 117.6 106.5 95.9 85.9 76.7Total Proved - 1P 1,016.5 874.8 763.9 674.9 602.1 580.9 508.7 452.6 407.7 370.9

Probable: Offshore Undeveloped (App F) 1,126.9 973.9 845.5 737.4 645.9 276.8 253.3 231.9 212.7 195.3 Onshore Undeveloped (App G) 562.6 275.1 144.7 82.4 50.9 363.2 180.2 96.1 55.4 34.8Total Probable 1,689.5 1,249.0 990.2 819.8 696.8 640.0 433.5 328.0 268.1 230.1

Total Proved Plus Probable - 2P 2,705.9 2,123.8 1,754.1 1,494.7 1,299.0 1,220.9 942.2 780.6 675.8 601.0

Before Income Taxes, Discounted at After Income Taxes, Discounted atNet Present Values of Future Net Revenue, $ Millions

TABLE 25

AIF - Consolidated Net Present Value of Future Net Revenues - Forecast Prices and Costs As of December 31, 2009

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 61: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Future FutureNet Net

Revenue RevenueWell Before After

Operating Development Abandonment Income Income IncomeRevenue Royalties Costs Costs Costs Taxes Taxes Taxes

Reserve Category (MM$) (MM$) (MM$) (MM$) (MM$) (MM$) (MM$) (MM$)

Proved - 1P 1,186.013 91.513 231.751 107.885 8.436 746.429 346.526 399.903

Proved Plus Probable - 2P 2,614.354 253.289 294.075 175.003 18.659 1,873.328 1,196.622 676.706

TABLE 26

AIF - Offshore Future Net Revenues - Forecast Prices and CostsAs of December 31, 2009

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 62: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Future Net RevenueBefore Income Taxes(Discounted at 10%)

Reserve Category Production Group ($millions)

Proved Reserves - 1P Light and Medium Crude Oil 609.319

Proved Plus Probable Reserves - 2P Light and Medium Crude Oil 1,454.850

TABLE 27

AIF - Offshore Future Net Revenue by Production Group - Forecast Prices and CostsAs of December 31, 2009

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 63: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

AIF - Summary of Offshore Pricing and Inflation Rate Assumptions - Forecast Prices and Costs

ThailandWTI Brent OffshoreSpot Spot CrudeOil Oil Oil Inflation

Price Price Price RatePd Year ($/bbl) ($/bbl) ($/bbl) (%/yr)

1 2010 80.00 78.50 72.59 ---2 2011 83.00 81.50 76.59 5.5%3 2012 86.00 84.50 79.59 3.9%4 2013 89.00 87.50 82.59 3.8%5 2014 92.00 90.50 85.59 3.6%6 2015 93.84 92.34 87.43 2.1%7 2016 95.72 94.22 89.31 2.2%8 2017 97.64 96.14 91.23 2.1%9 2018 99.59 98.09 93.18 2.1%10 2019 101.58 100.08 95.17 2.1%

Thereafter 2% per year 2% per year 2% per year 2%

TABLE 28

As of December 31, 2009

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 64: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Proved - 1P Probable Total - 2P Proved - 1P Probable Total - 2P Proved - 1P Probable Total - 2P

Beginning Balance as of December 31, 20081 16,203 20,970 37,173 0.0 0.0 0.0 0 0 0

Acquisitions 0 0 0 0.0 0.0 0.0 0 0 0

Revisions (598) (5,294) (5,892) 0.0 0.0 0.0 0 0 0

Less Production 1,613 0 1,613 0.0 0.0 0.0 0 0 0

Ending Balance as of December 31, 2009 13,992 15,676 29,668 0.0 0.0 0.0 0 0 0

Notes: 1. Source = Huddleston report dated April 14, 2009

Condensate, Mbbl

TABLE 29

AIF - Offshore Reconciliation of Net Reserves - Forecast Prices and CostsAs of December 31, 2009

Light/Medium Crude Oil, Mbbl Natural Gas, MMcf

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 65: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Period/FactorOffshore Proved Only

Crude Oil (Mbbl)

Beginning Balance as of December 31, 20081 16,203.1 492,924.4

Less Production/Sales 2 1,612.6 80,470.0

Changes due to Price 78,384.5Accretion of Discount 38,345.7Changes resulting from technical revisions plus effect of timing (599.0) (18,381.2)Changes resulting from acquisition of reserves 0.0 0.0Changes in future development costs 98,516.0

Other 0.0

Ending Balance as of December 31, 2009 13,991.6 609,319.2

Notes: 1. Source = Huddleston report dated April 14, 2009 2. Source = Coastal Energy

TABLE 30

As of December 31, 2009

Offshore Proved Only FNR Disc. @ 10%

(M$)

AIF - Offshore Reconciliation of Changes in Future Net Revenue - Forecast Prices and Costs

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 66: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Gross Net Gross Net Gross Net Gross NetReserve Category (Mbbl) (Mbbl) (Bcf) (Bcf) (Mbbl) (Mbbl) (MBOE) (MBOE)

Proved: Onshore Developed Producing (App G) 0 0 369.8 40.9 1,945 215 63,570 7,032Total Proved - 1P 0 0 369.8 40.9 1,945 215 63,570 7,032

Probable: Onshore Undeveloped (App G) 0 0 646.2 71.5 3,399 376 111,103 12,290Total Probable 0 0 646.2 71.5 3,399 376 111,103 12,290

Total Proved Plus Probable - 2P 0 0 1,016.0 112.4 5,344 591 174,673 19,322

TABLE 31

AIF - Onshore Reserves Data - Forecast Prices and Costs

(Natural Gas Liquids) TotalsLight and Medium

Crude Oil Natural Gas

As of December 31, 2009

Condensate

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 67: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Reserve Category 0% 5% 10% 15% 20% 0% 5% 10% 15% 20%

Proved: Onshore Developed Producing (App G) 270.0 201.3 154.6 122.1 99.1 181.0 137.4 107.4 86.3 71.1Total Proved - 1P 270.0 201.3 154.6 122.1 99.1 181.0 137.4 107.4 86.3 71.1

Probable: Onshore Undeveloped (App G) 562.6 275.1 144.7 82.4 50.9 363.2 180.2 96.1 55.5 34.8Total Probable 562.6 275.1 144.7 82.4 50.9 363.2 180.2 96.1 55.5 34.8

Total Proved Plus Probable - 2P 832.6 476.4 299.2 204.5 150.0 544.2 317.6 203.5 141.8 105.9

Before Income Taxes, Discounted at After Income Taxes, Discounted atNet Present Values of Future Net Revenue, $ Millions

TABLE 32

AIF - Onshore Net Present Value of Future Net Revenues - Forecast Prices and Costs As of December 31, 2009

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 68: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Future FutureNet Net

Revenue RevenueWell Before After

Operating Development Abandonment Income Income IncomeRevenue Royalties Costs Costs Costs Taxes Taxes Taxes

Reserve Category (MM$) (MM$) (MM$) (MM$) (MM$) (MM$) (MM$) (MM$)

Proved - 1P 345.312 43.157 22.328 9.048 0.741 270.038 89.064 180.974

Proved + Probable - 2P 1,020.381 127.528 45.885 13.534 0.839 832.596 288.438 544.158

TABLE 33

AIF - Onshore Future Net Revenues - Forecast Prices and CostsAs of December 31, 2009

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 69: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Future Net RevenueBefore Income Taxes(Discounted at 10%)

Reserve Category Production Group ($millions)

Proved Reserves - 1P Natural Gas and Condensate 154.563

Proved Plus Probable Reserves - 2P Natural Gas and Condensate 299.215

TABLE 34

AIF - Onshore Future Net Revenue by Production Group - Forecast Prices and CostsAs of December 31, 2009

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 70: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

ThailandWTI Brent Onshore ThailandSpot Spot Estimated Crude Spot OnshoreOil Oil NWS Oil HSFO Gas Inflation

Price Price Price Price 108 CST Price1 RatePd Year ($/bbl) ($/bbl) ($/bbl) ($/bbl) ($/bbl) ($/Mcf) (%/yr)

1 2010 80.00 78.50 72.49 69.09 67.19 6.67 ---2 2011 83.00 81.50 75.49 71.95 70.19 6.92 3.7%3 2012 86.00 84.50 78.49 74.80 73.19 6.39 -7.7%4 2013 89.00 87.50 81.49 77.66 76.19 6.61 3.4%5 2014 92.00 90.50 84.49 80.52 79.19 6.83 3.3%6 2015 93.84 92.34 86.33 82.28 81.03 6.97 2.0%7 2016 95.72 94.22 88.21 84.07 82.91 6.98 0.1%8 2017 97.64 96.14 90.13 85.90 84.83 7.12 2.0%9 2018 99.59 98.09 92.08 87.76 86.78 7.26 2.0%

10 2019 101.58 100.08 94.07 89.65 88.77 7.40 1.9%

Thereafter 2% per year 2% per year 2% per year 2% per year 2% per year 2% per year 2%

Notes: 1. Onshore gas prices have been adjusted by a BTU factor of 986.952 Btu/scf and are shown as $/Mcf

TABLE 35

As of December 31, 2009

AIF - Summary of Onshore Pricing and Inflation Rate Assumptions - Forecast Prices and Costs

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 71: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Proved Probable Total Proved Probable Total Proved Probable Total

Beginning Balance as of December 31, 20081 0 0 0 43.1 62.0 105.1 230 331 561

Less Production 0 0 0 3.4 0.0 3.4 18.1 0.0 18.1

Acquisitions 0 0 0 0.0 0.0 0.0 0.0 0.0 0.0

Revisions 0 0 0 1.2 9.5 10.7 2.8 45.0 47.8

Ending Balance as of December 31, 2009 0 0 0 40.9 71.5 112.4 215 376 591

Notes: 1. Source = Huddleston report dated April 14, 2009

Condensate, Mbbl

TABLE 36

AIF - Onshore Reconciliation of Net Reserves - Forecast Prices and CostsAs of December 31, 2009

Light/Medium Crude oil, Mbbl Natural Gas, Bcf

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 72: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Period/FactorOnshore Proved Only

Natural Gas (Bcf)

Onshore Proved Only Condensate

(Mbbl)

Beginning Balance as of December 31, 20081 43.1 230.4 153,924.8

Less Production/Sales 3.4 18.1 19.7

Changes due to Price (493.1)Accretion of Discount 12,476.2Changes resulting from technical revisions plus effect of timing 1.2 2.8 3,443.1Changes resulting from acquisition of reserves 0.0 0.0 0.0Changes in future development costs (14,768.0)

Other 0.0

Ending Balance as of December 31, 2009 40.9 215.1 154,563.3

Notes: 1. Source = Huddleston report dated April 14, 2009

Onshore Proved Only FNR Disc. @ 10%

(M$)

TABLE 37

AIF - Onshore Reconciliation of Changes in Future Net Revenue - Forecast Prices and CostsAs of December 31, 2009

Huddleston & Co., Inc.Texas Registered Engineering Firm F-1024a

Page 73: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

APPENDIX A:

Glossary of Technical Terms

Page 74: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

GLOSSARY OF TERMS

As edited by Huddleston (Taken from Appendix A – Glossary of the COGE Handbook)

Bottom-hole pressure: The pressure in a well at a point opposite the producing formation as recorded by a bottom-hole pressure recorder.

Bottom-hole temperature: The temperature in a well at a point opposite the producing formation.

Compressibility (z) factor: A factor used to correct the Ideal Gas Law (pv=nRT) to actual measurements.

Crude Oil: A mixture, consisting mainly of pentanes and heavier hydrocarbons, that exists in the liquid phase in reservoirs and remains liquid at atmospheric pressure and temperature. Crude oil may contain sulphur and other non-hydrocarbon compounds, but does not include liquids obtained from the processing of natural gas. Classes of crude oil are often reported on the basis of density, sometimes with different meanings. Acceptable ranges are as follows:

Light: less than 870 kg/m3 (greater than 31.1° API)

Medium: 870 to 920 kg/m3 (31.1° API to 22.3° API)

Heavy: 920 to 1000 kg/m3 (22.3° API to 10° API)

Extra-heavy: greater than 1000 kg/m3 (less than 10° API)

Heavy or extra-heavy crude oils, as defined by the density ranges given, but with viscosities greater than 10,000 mPa.s measured at original temperature in the reservoir and atmospheric pressure, on a gas-free basis, would generally be classified at bitumen.

Discounted cash flow: Future cash converted to present conditions using an appropriate discount rate.

Disposal well: A well used for the disposal of salt water where it is pumped into a surface formation sealed off from other formations by impervious strata of rock.

Dolomitization: The process whereby limestone is altered to dolomite by substitution of magnesium carbonate for a portion of the original calcium carbonate.

Drill stem test: The procedure used to gather data on a formation to determine its potential productivity before installing casing in a well.

Effective Date: The effective date, also referred to as the “As of Date,” serves two purposes in an oil and gas reserves evaluation: (1) It is the cut-off date for all geological, engineering, and financial data after which no new information can be included in the evaluation. (2) It is the date to which all future net revenue or other cash flow forecasts are discounted to determine present worth values.

Flow test: A test of the ability of a well to produce fluids usually at a constant rate.

Fracturing: A stimulation to increase productivity that results in the formation of a fracture in the wellbore area; conducted mostly in clastics.

Gas oil ratio: The ratio of gas in solution to the oil volume in which it is dissolved, usually expressed in cubic feet of gas per barrel of liquid at 14.65 psia and 60°F.

Gross pay: The gross economically productive thickness of a hydrocarbon formation.

Page 75: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Isopach map: A geological map of subsurface strata showing contours of the thickness of a given formation underlying an area; one type of volumetric map.

Natural Gas: A mixture of lighter hydrocarbons that exist either in the gaseous phase or in solution in crude oil in reservoirs but are gaseous at atmospheric conditions. Natural gas may contain sulphur or other non-hydrocarbon compounds.

Natural Gas Liquids: Those hydrocarbon components that can be recovered from natural gas as liquids including but not limited to ethane, propane, butanes, and pentanes, plus condensate and small quantities of non-hydrocarbons.

Net present value: The value obtained when all cash flow streams, including the investment, are discounted to the present and totaled.

Porosity: The volume of the pore space expressed as a percentage of the total volume of rock mass.

Production tests: Test conducted to determine the productivity of a given reservoir.

Stratigraphic trap: A type of reservoir capable of holding oil or gas in which the trap is formed by a change in the characteristics of the formation, which could be loss of porosity and permeability or a break in its continuity.

Structural trap: A type of reservoir containing oil and/or gas formed by deformation of the earth’s crust that seals off the oil and gas accumulation in the reservoir forming a trap.

Unconformity: Lack of continuity in deposition between rock strata in contact with one another corresponding to a gap in the stratigraphic record; the surface of contact between rock beds in which there is a discontinuity in the ages of the rocks.

Water injector: A well in which water has been injected into an underground stratum to increase reservoir pressure.

Page 76: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

APPENDIX B:

Conversion Factors and Abbreviations

Page 77: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

CONVERSION FACTORS AND ABBREVIATIONS

Conversion Factors

1 meter 3.281 feet

1 kilometer 3,281 feet

1 kilometer 0.6214 miles

1 cubic meter of gas 35.31467 cubic feet of gas

1 cubic meter of liquid 6.28981 barrels

1 kg/sq cm 14.22334 psi

1 hectare (10,000 square meters) 2.471054 acres

1 square kilometer 247.1 acres

1 US gallon 3.7854 liters

1 barrel of oil 42 gallons

1 barrel of oil 6.0 McfE (Btu basis)

1 mPa-s 1.0 centipoise

Abbreviations

1P Proved

2P Proved + Probable

3P Proved + Probable + Possible

AAPG American Association of Petroleum Geologists

ac acre

ACQ Annual Contract Quantity

AIM Alternative Investment Market of London

AOF absolute open flow

AOFP Absolute Open Flow Potentials

API American Petroleum Institute

APICO APICO LLC

B billion

bbl barrels

bbl/MMcf barrels per million cubic feet

bopd barrels of oil per day

BS&W Bottom sediment and water

Bcf Billion cubic feet

Btu British thermal units

Btu/scf British thermal unit per standard cubic feet

bwpd Barrels of water per day

Page 78: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Conversion Factors and Abbreviations Page Two Capex Capital Expenditures

CEO Chief Executive Officer

CDC Contract Delivery Capacity

CGR Condensate Gas Ratio

CIM Canadian Institute of Mining, Metallurgy & Petroleum

Coastal Coastal Energy Company

COGE(H) Canadian Oil and Gas Evaluation (Handbook)

CO2 Carbon Dioxide

CoS chance of success

cp centipose

CPR Competent Person’s Report

DCD Date of Commencement Delivery

DCQ Daily Contract Quantity

Disc discounted or discount

°F degrees, Fahrenheit

°R degrees, Rankin (= °F + 460)

$/bbl dollars per barrel

$/Mcf dollars per thousand cubic feet

$/MMBtu dollars per million British thermal units

DST drill stem test

EIA Environment Impact Assessment

ESP Electric Submersible Pump

EUR Estimated Ultimate Recovery

ft feet

ft3 cubic feet

FNR Future Net Revenue

FVF Formation volume factor

G&A General and Administrative costs

GIIP Gas Initially-In-Place

GLJ Gilbert Lausten Jung Petroleum Consultants (www.gljpc.com)

GOC Gas-Oil contact

GOR Gas-Oil ratio

GSA Gas Sales Agreement

GWC Gas-Water Contact

H2S Hydrogen Sulfide

Page 79: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Conversion Factors and Abbreviations Page Three HSFO 180 CST High Sulfur Fuel Oil 180 CST

HHL Huai Hin Lat formation

KB Kelly bushing

KBE Kelly bushing elevation

kg/sq cm kilograms per square centimeter

kg/m3 kilograms per cubic meter

km Kilometers

km2 Square kilometers

m meters

mPa-s thousand Pascal-seconds (viscosity measurement)

m3 Cubic meters

M Thousand

M$ Thousand dollars

Mbbl thousands of barrels

MBOE thousands of barrel oil equivalents

Mcf thousand cubic feet

McfE thousand cubic feet equivalents

MD measured depth

mD permeability in millidarcies

MM million

MMBtu million British thermal units

MMBtu/d million British thermal units per day

MMcf million cubic feet

MMcf/d million cubic feet per day

MMcf/y million cubic feet per year

NI National Instrument

NPV Net Present Value

NRI net revenue interest (partners share of the revenues less the royalty)

NWS Australian Northwest Shelf crude oil

OOIP Original Oil-In-Place

Opex Operating expenses

OWC oil-water contact

% Percentage

PCA Petroleum Concession Agreement

Page 80: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Conversion Factors and Abbreviations Page Four PH Phu Horm

PI Productivity Index

PLT Production Logging Tool

PNK Pha Nok Khao formation

ppm parts per million

PSC Production Sharing Contract

psi pounds per square inch

psia pounds per square inch absolute

psig pounds per square inch gauge

PTT PTT Public Company Limited, Thailand gas buyer

PVT pressure-volume-temperature

REC Recovery

RF Recovery Factor

RFT Repeat formation test

rb/STB reservoir barrels per stock tank barrel

scf standard cubic feet measured at 14.7 pounds per square inch and 60°F

scf/bbl standard cubic feet per barrel

SG Specific gravity

SPE Society of Petroleum Engineers

ss subsea

stb stock tank barrel

SW Southwest

Sw Water Saturation

TSX Toronto Venture Stock Exchange, Canada

TVD True vertical depth

TVDSS True Vertical Depth Subsea

US$ United States Dollar

WFT Western Fault Terrace

WI working interest

Working Interest Share (of reserves) calculated by multiplying the Gross estimate by the Contractor’s Working Interest in a Production Sharing Contract

WPC World Petroleum Congress

z – factor gas compressibility factor

Page 81: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

APPENDIX C:

Certificate of Qualification

Page 82: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Huddleston & Co., Inc. Petroleum and Geological Engineers

1 Houston Center 1221 McKinney, Suite 3700

Houston, Texas 77010

PHONE (713) 209-1100 FAX (713) 752-0828

CERTIFICATE OF QUALIFICATION

I, John P. Krawtz, P.E., with an office at 1221 McKinney, Suite 3700, Houston, Texas, 77010, USA, hereby certify:

1. That I am a Consulting Petroleum Engineer employed by Huddleston & Co., Inc., which company has prepared a report on the interests for Coastal Energy Company during the months of January through March 2010.

2. That Huddleston & Co., Inc.’s officers or its employees are independent of Coastal Energy Company, its directors, senior management and advisers; have no direct or indirect interests, nor do they expect to receive any direct or indirect interest, in the properties or in any securities of Coastal Energy Company.

3. That Huddleston & Co., Inc. is registered with the Texas Board of Professional Engineers (Registration Number F-001024). That I attended Texas A&M University and that I graduated with a Bachelor of Science in Petroleum Engineering in 1982 and with a Master of Science in Petroleum Engineering in 1984. That I am a registered Professional Engineer in the state of Texas since 1990 and am a member of both the Society of Petroleum Engineers and the Society of Petroleum Evaluation Engineers, and that I have in excess of twenty-five years experience in engineering studies and the evaluation of oil and gas properties in the USA, Canada, Argentina, Colombia, Guatemala, Kazakhstan, Kuwait, North Sea, Turkmenistan, and Russia.

4. That I am a qualified evaluator and auditor as defined in National Instrument 51-101.

5. That a personal field inspection of the Company’s property was not conducted due to the availability of published data from the State-owned company and public data.

John P. Krawtz, P.E. Professional Engineer Texas Reg. No. 67593

Page 83: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

APPENDIX D:

Canadian Form 51-101 F2

Page 84: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Huddleston & Co., Inc. Petroleum and Geological Engineers

1 Houston Center 1221 McKinney, Suite 3700

Houston, Texas 77010

PHONE (713) 209-1100 FAX (713) 752-0828

FORM 51-101F2

REPORT ON RESERVES DATA BY INDEPENDENT QUALIFIED RESERVES EVALUATOR

To the board of directors of Coastal Energy Company (the “Company”):

1. We have evaluated the Company’s reserves data as at December 31, 2009. The reserves data consist of the following:

(a) (i) proved and proved plus probable oil and gas reserves estimated as at December 31, 2009 using forecast prices and costs; and

(ii) the related estimated net revenue

2. The reserves data are the responsibility of the Company’s management. Our responsibility is to express an opinion on the reserves data based on our evaluation.

We carried out our evaluation in accordance with standards set out in the Canadian Oil and Gas Evaluation Handbook (the “COGE Handbook”) prepared jointly by the Society of Petroleum Evaluation Engineers (Calgary Chapter) and the Canadian Institute of Mining, Metallurgy & Petroleum (Petroleum Society).

3. Those standards require that we plan and perform an evaluation to obtain reasonable assurance as to whether the reserves data are free of material misstatement. An evaluation also includes assessing whether the reserves data are in accordance with principles and definitions presented in the COGE Handbook.

4. The following table sets forth the estimated future net revenue (before deduction of income taxes) attributed to proved plus probable reserves, estimated using forecast prices and costs and calculated using a discount rate of 10 percent, included in the reserves data of the Company evaluated by us for the year-ended December 31, 2009, and identifies the respective portions thereof that we have evaluated and reported on to the Company’s board of directors:

Page 85: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

FORM 51-101F2 REPORT ON RESERVES DATA BY INDEPENDENT QUALIFIED RESERVES EVALUATOR Page Two

Huddleston & Co., Inc.

Independent Qualified Reserves Evaluator

Description and Preparation Date of Evaluation Report

Location of Reserves Net Present Value of Future Net Revenue (before income taxes, 10% discount rate)

Evaluated Total1 Huddleston & Co., Inc.

Coastal Energy Company in the G5-43 Offshore Block, December 31, 2009

Thailand - Offshore

US$1,454,849,670

Huddleston & Co., Inc.

Coastal Energy Company in the EN5/EU1 Onshore Blocks, Thailand, December 31, 2009

Thailand - Onshore

US$299,215,410

Huddleston & Co., Inc.

Coastal Energy Company in the G5-43 Offshore Block and in the EN5/EU1 Onshore Blocks, Thailand, December 31, 2009

Thailand - Total

US$1,754,065,080

1This amount should be the amount disclosed by the reporting issuer in its statement of reserves data filed under item 1 of section 2.1 of NI 51-101, as its future net revenue (before deducting future income tax expenses) attributable to proved plus probable reserves, estimated using forecast prices and costs and calculated using a discount rate of 10 percent (required by section 2 of Item 2.2 of Form 51-101F1).

5. In our opinion, the reserves data respectively evaluated by us have, in all material respects, been determined and are in accordance with the COGE Handbook. We express no opinion on the reserves data that we reviewed but did not evaluate.

6. We have no responsibility to update our reports referred to in paragraph 4 for events and circumstances occurring after their respective preparation dates.

7. Because the reserves data are based on judgments regarding future events, actual results will vary and the variations may be material.

Executed as to our report referred to above:

John P. Krawtz, P.E. Huddleston & Co., Inc. Houston, Texas, USA March 17, 2010

Page 86: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

APPENDIX E:

Definitions of Reserves and Resources

Page 87: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

1

SPE Petroleum Resources Management System Guide for Non-Technical Users

_________________________________________________________ This guide is to help non-technical users understand how the petroleum industry assesses and quantifies the major driver of value for exploration and production companies – oil and natural gas reserves and resources. Clear terms and definitions that result in reliable and easily comparable reserves estimations are essential for investors, regulators, governments and consumers not only in assessing a petroleum company’s current and future value, but in determining the outlook for the world’s energy supply. Completed in 2007, the PRMS provides updated definitions and the related classification system for petroleum reserves and resources that reflect advances in technology, the international expansion and the increasing role of unconventional resources in the industry. These updated definitions establish a universal language which can be used for estimating and classifying quantities of oil and gas discovered in a reservoir. SPE’s Role in Developing the PRMS For decades, the SPE has been a leader in developing the technical definitions that have become the industry standard for evaluating petroleum reserves and resources. The SPE historically draws together the scientific and engineering expertise of the global oil industry in this effort. The PRMS is the result of more than two years of collaboration by the SPE, the World Petroleum Council (WPC), the American Association of Petroleum Geologists (AAPG) and the Society of Petroleum Evaluation Engineers (SPEE), with considerable input from the industry at large. The new system builds on the previous set of definitions and incorporates best practices identified in other international petroleum and mineral classification systems. These technical definitions are offered for any company, agency, country or other stakeholder to use. Fundamentals of the PRMS Oil and gas reserves and resources are defined as volumes that will be commercially recovered in the future. Unlike the inventory of a manufacturing company, reserves are physically located in reservoirs deep underground and cannot be visually inspected or counted, but rather are estimates based on the evaluation of data that provides evidence of the amount of oil and gas present. There is no definitive answer until the end of a reservoir's producing life. All reserve estimates involve some degree of uncertainty. The estimation of reserves volumes is generally performed by highly-skilled individuals who use their experience and professional judgment in the calculation of those volumes. To take into account this uncertainty, the PRMS incorporates a central framework that categorizes reserves and resources according to the level of certainty associated with their recoverable volumes (horizontal axis in the figure below), and classifies them according to the potential for reaching commercial producing status (vertical axis).

Page 88: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

2

Contingent Resources

Reserves

Production

ProspectiveResources

Unrecoverable

Dis

cove

red

Sub

-com

mer

cial

Com

mer

cial

Und

isco

vere

d

Unrecoverable

chance of discovery

Contingent Resources

Reserves

ProspectiveResources

Dis

cove

red

Sub

-com

mer

cial

Com

mer

cial

Und

isco

vere

d

Categorize based primarily on technical uncertainty of sales quantities associated with a project

chance of discovery

Classify by Chance of

Commerciality (Risk)of project applied

Chance of Commerciality (Risk)

of project applied

Chance of Commerciality (Risk)

of project applied

chance of development

chance of development

chance of development

chance of discovery

PROVED PROBABLE POSSIBLE

When applying PRMS, technical specialists must determine a specific project that will be used to recover the reserves and resources and determine the chance that it will be commercially successful, then must estimate the volume expected to be recovered from the “project.” It is important to remember when applying the PRMS that, as shown above, reserves are a subset of resources. Differences in Classes (Vertical Axis) The four major recoverable resources classes defined by the PRMS are production, reserves, contingent resources, and prospective resources. There is also a distinct class for unrecoverable petroleum. These classes are shown on the vertical axis of the PRMS framework. Production is the quantity of oil and natural gas that has been recovered already (by a specified date). This is primarily output from operations that has already been produced for use by consumers. Reserves represent that part of resources which are commercially recoverable and have been justified for development, while contingent and prospective resources are less certain because some significant commercial or technical hurdle must be overcome prior to there being confidence in the eventual production of the volumes.

Page 89: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

3

Contingent resources are less certain than reserves. These are resources that are potentially recoverable but not yet considered mature enough for commercial development due to technological or business hurdles. For contingent resources to move into the reserves category, the key conditions, or contingencies, that prevented commercial development must be clarified and removed. As an example, all required internal and external approvals should be in place or determined to be forthcoming, including environmental and governmental approvals. There also must be evidence of firm intention by a company’s management to proceed with development within a reasonable time frame (typically 5 years, though it could be longer). Prospective resources are estimated volumes associated with undiscovered accumulations. These represent quantities of petroleum which are estimated, as of a given date, to be potentially recoverable from oil and gas deposits identified on the basis of indirect evidence but which have not yet been drilled. This class represents a higher risk than contingent resources since the risk of discovery is also added. For prospective resources to become classified as contingent resources, hydrocarbons must be discovered, the accumulations must be further evaluated and an estimate of quantities that would be recoverable under appropriate development projects prepared. Some petroleum will be classified as “unrecoverable” at this point in time, not being producible by any projects that the company may plan or foresee. While a portion of these quantities may become recoverable in the future as commercial circumstances change or technological developments occur, some of the remaining portion may never be recovered due to physical or chemical constraints in the reservoir. The volumes classified using the system represent the analysis of the day, and should be regularly reviewed and updated, as necessary, to reflect changing conditions. A project may have recoverable quantities in several resource classes simultaneously. As barriers to development are removed, some resources may move to a higher classification. One of the primary distinctions between resources and reserves is that while resources are technically recoverable, they may not be commercially viable. Reserves are always commercially viable and there is intent development them. Differences in Categories (Horizontal Axis) Within any resource class other than production, volumes are placed into different categories based on their certainty of eventually coming out of the ground. Decisions to upgrade volumes to any category within a class are generally based on the technical certainty of recovering the volumes. In this discussion, the focus is on the reserve class, as these volumes are commonly the focus of public discussions of oil and gas company producing assets. The highest valued category of reserves is “proved” reserves. Proved reserves have a “reasonable certainty” of being recovered, which means a high degree of confidence that the volumes will be recovered. To be clear, reserves must have all commercial aspects addressed. It is technical issues which separate proved from unproved categories. “Probable” or “possible” reserves are lower categories of reserves, commonly combined and referred to as “unproved reserves,” with decreasing levels of technical certainty. Probable reserves are volumes that are defined as “less likely to be recovered than proved, but more certain to be recovered than Possible Reserves”. Possible reserves are reserves which analysis of geological and engineering data suggests are less likely to be recoverable than probable reserves.

Page 90: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

4

The term 1P is frequently used to denote proved reserves, 2P is the sum of proved and probable reserves and 3P the sum of proved, probable and possible reserves. The best estimate of recovery from committed projects is generally considered to be the 2P sum of proved and probable reserves. Note that these volumes only refer to projects that are currently justified for or already in development. Total value of any resource base must include an assessment of the contingent and prospective resources as well as reserves. In order for volumes to move from one category to the next, the technical issues which cause them to be placed in less certain categories must be resolved. In the majority of cases, this requires that additional data must be obtained before any greater certainty can be recognized. This may include, among other things, the drilling of additional wells, the monitoring of current production to better understand performance or the implementation of a pilot to have greater confidence in the volumes that full scale development projects may eventually produce. Conclusion The PRMS is designed to provide a framework for the classification of oil and gas volumes which a company may have associated with its portfolio of assets. It is not specific to any particular geographic location and can be applied to both conventional and unconventional reserves and resources anywhere in the world, in any fiscal regime. When summarizing these volumes, some key points must be kept in mind: 1) All oil and gas reserve and resource volumes are not the same, and should generally not be added

together without taking into consideration the risk and uncertainty associated with each volume. Some volumes are clearly less certain and more risky than others. Whether the focus is only on reserves, or on the resource base as a whole (remember, reserves are a subset of resources!), expressing these volumes as one number may be misleading.

2) Risk and uncertainty are key but significantly different concepts. Risk is primarily associated with the classification of volumes and is a measure of the certainty of a project progressing to production. Uncertainty is the driver for categorization and is a measure of the technical factors impacting the volumes ultimate producibility.

3) The PRMS was developed as a collaborative system, designed to support a wide group of stakeholders. Throughout the early drafting stages, advice and input was sought not only from the petroleum industry, but from the financial, accounting, governmental sectors, in addition to the mining industry.

The PRMS is available on the SPE website at http://www.spe.org/spe-app/spe/industry/reserves/index.htm. It is highly recommended that users visit the website to gain a deeper understanding of the terms and definitions, learn more about the system and its application, and other aspects of reserves and resources estimation.

Page 91: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

DEFINITIONS USED FOR RESERVE CATEGORIES

The following reserves definitions are set out by the Canadian Securities Administrators in National Instrument 51-101 (NI51-101; in Part 2 of Appendix 1 to Companion Policy 51-101CP) with reference to the COGE Handbook.

Reserve Categories

Reserves are estimated remaining quantities of oil and natural gas and related substances anticipated to be recoverable from know accumulations, from a given date forward, based on:

• analysis of drilling, geological, geophysical, and engineering data;

• the use of established technology;

• specified economic conditions1, which are generally accepted as being reasonable, and shall be disclosed.

Reserves are classified according to the degree of certainty associated with the estimates.

Proved Reserves

Proved reserves are those reserves that can be estimated with a high degree of certainty to be recoverable. It is likely that the actual remaining quantities recovered will exceed the estimated proved reserves.

Probable Reserves

Probable reserves are those additional reserves that are less certain to be recovered than proved reserves. It is likely that the actual remaining quantities recovered will be greater or less than the sum of the estimated proved plus probable reserves.

Possible Reserves

Possible reserves are those additional reserves that are less certain to be recovered than probable reserves. It is unlikely that the actual remaining quantities recovered will exceed the sum of the estimated proved plus probable plus possible reserves.

Other criteria that must also be met for the categorization of reserves are provided in [Section 5.5 of the COGE Handbook].

Development and Production Status

Each of the reserves categories (proved, probable, and possible) may be divided into developed and undeveloped categories.

Developed Reserves

Developed reserves are those reserves that are expected to be recovered from existing wells and installed facilities or, if facilities have not been installed, that would involve a low expenditure (e.g., when compared to the cost of drilling a well) to put the reserves on production. The developed category may be subdivided into producing and non-producing.

1 For the purposes of NI 51-101, the key economic assumptions will be the prices and costs used in the estimate, namely: (a) constant prices and costs as at the last day of a reporting issuer’s financial year; or (b) forecast prices and costs.

Page 92: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

DEFINITIONS USED FOR RESERVE CATEGORIES Page Two Developed Producing Reserves

Developed producing reserves are those reserves that are expected to be recovered from completion intervals open at the time of the estimate. These reserves may be currently producing or, if shut in, they must have previously been on production, and the date of resumption of production must be know with reasonable certainty.

Developed Non-Producing Reserves

Developed non-producing reserves are those reserves that either have not been on production, or have previously been on production, but are shut in, and the date of resumption of production is unknown.

Undeveloped Reserves

Undeveloped reserves are those reserves expected to be recovered from known accumulations where a significant expenditure (for example, when compared to the cost of drilling a well) is required to render them capable of production. They must fully meet the requirements of the reserves classification (proved, probable, possible) to which they are assigned.

In multi-well pools, it may be appropriate to allocate total pool reserves between the developed and undeveloped categories or to subdivide the developed reserves for the pool between developed producing and developed non-producing. This allocation should be based on the estimator’s assessment as to the reserves that will be recovered from specific wells, facilities and completion intervals in the pool and their respective development and production status.

Levels of Certainty for Reported Reserves

The qualitative certainty levels referred to in the definitions above are applicable to individual reserves entities (which refers to the lowest level at which reserves calculations are performed) and to reported reserves (which refers to the highest level sum of individual entity estimates for which reserves estimates are presented). Reported Reserves should target the following levels of certainty under a specific set of economic conditions:

• at least a 90 percent probability that the quantities actually recovered will equal or exceed the estimated proved reserves;

• at least a 50 percent probability that the quantities actually recovered will equal or exceed the sum of the estimated proved plus probable reserves;

• at least a 10 percent probability that the quantities actually recovered will equal or exceed the sum of the estimated proved plus probable plus possible reserves.

A quantitative measure of the certainty levels pertaining to estimates prepared for the various reserves categories is desirable to provide a clearer understanding of the associated risks and uncertainties. However, the majority of reserves estimates will be prepared using deterministic methods that do not provide a mathematically derived quantitative measure of probability. In principle, there should be no difference between estimates prepared using probabilistic or deterministic methods.

Additional clarification of certainty levels associated with reserves estimates and the effect of aggregation is provided in Section 5.5.3 [of the COGE Handbook].

Incorporation of these guidelines means that total corporate proved reserves reflect a conservative estimated and proved plus probable reserves reflect a current “best estimate” of the oil and gas quantities which will be recovered.

Page 93: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

APPENDIX F:

Detailed Cash Flow Projections Forecast Price Case – Net to Coastal Energy

Offshore Property Evaluation

(Proved + Probable + Possible)

Table 1.1 Data

Page 94: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Lease Name Life

(years)

Oil

(Mbbl)

Gas

(MMcf)

Gas

(M$)

Oil

(M$)

Other

(M$)

Expense

& Tax

(M$)Invest.

(M$)

Non-Disc.

(M$)

3/30/2010

Cash FlowNet Reserves Net Revenue

Ownership Group :

Project Name : As of Date:

Economic One-Liners

Reserve Category

2:32:57PM

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

Disc. 10%

(M$)Risked / UnRisked

12/31/2009

Grand Total 2,134,640.07 2,893,337.16 216,539.53 402,330.35 0.00 0.00 3,512,207.04 0.00Total 10.00 43,299.13

Proved Rsv Class 609,319.23 746,429.11 116,320.23 231,750.94 0.00 0.00 1,094,500.28 0.00Total 8.00 13,991.56

Proved Rsv Class

Producing Rsv Category 190,996.65 221,645.13 3,446.96 150,612.59 0.00 0.00 375,704.69 0.00Total 8.00 4,807.39

Shut-In Rsv Category 152,707.38 185,822.67 5,512.08 10,615.83 0.00 0.00 201,950.58 0.00Total 7.00 2,586.92

Undeveloped Rsv Category 265,615.19 338,961.30 107,361.19 70,522.52 0.00 0.00 516,845.01 0.00Total 5.00 6,597.26

Probable Rsv Class 845,530.44 1,126,898.73 77,341.47 62,324.11 0.00 0.00 1,266,564.31 0.00Total 8.50 15,676.28

Probable Rsv Class

Undeveloped Rsv Category 845,530.44 1,126,898.73 77,341.47 62,324.11 0.00 0.00 1,266,564.31 0.00Total 8.50 15,676.28

Possible Rsv Class 679,790.40 1,020,009.32 22,877.82 108,255.30 0.00 0.00 1,151,142.44 0.00Total 10.00 13,631.29

Possible Rsv Class

Undeveloped Rsv Category 679,790.40 1,020,009.32 22,877.82 108,255.30 0.00 0.00 1,151,142.44 0.00Total 10.00 13,631.29

OFFSHORE LOCATION 2,134,640.07 2,893,337.16 216,539.53 402,330.35 0.00 0.00 3,512,207.04 0.00Total 10.00 43,299.13

OFFSHORE LOCATION

BUA BAN Field 1,231,302.96 1,698,731.73 168,323.17 156,720.08 0.00 0.00 2,023,774.98 0.00Total 8.50 24,885.72

OFFSHORE LOCATION

BUA BAN Field

Proved Rsv Class 265,615.19 338,961.30 107,361.19 70,522.52 0.00 0.00 516,845.01 0.00Total 5.00 6,597.26

OFFSHORE LOCATION

BUA BAN Field

Proved Rsv Class

Undeveloped Rsv Category 265,615.19 338,961.30 107,361.19 70,522.52 0.00 0.00 516,845.01 0.00Total 5.00 6,597.26

45,984.45 37,927.68 3.43 0.00 0.00 53,503.46 0.00 0.00 7,519.01P-UD 694.21BUA BAN A - PUD 1,2

92,810.47 75,284.66 3.59 0.00 0.00 107,895.21 0.00 0.00 15,084.73P-UD 1,388.44BUA BAN A - PUD 3,4,5,6

93,710.30 74,775.58 3.76 0.00 0.00 108,842.67 0.00 0.00 15,132.37P-UD 1,388.48BUA BAN B - PUD 7,8,9,10

94,168.71 74,624.95 3.84 0.00 0.00 109,348.10 0.00 0.00 15,179.40P-UD 1,388.50BUA BAN B - PUD 11,12,13,14

70,857.01 55,671.14 3.93 0.00 0.00 82,258.94 0.00 0.00 11,401.94P-UD 1,042.25BUA BAN A - PUD 15,16,17

47,383.33 36,947.48 4.01 0.00 0.00 54,996.62 0.00 0.00 7,613.29P-UD 695.38BUA BAN B - PUD 18,19

-70,522.52 -56,296.06 5.00 0.00 0.00 0.00 0.00 70,522.52 0.00P-UD 0.00BUA BAN A&B- PUD LOE

-35,430.46 -33,320.24 4.00 0.00 0.00 0.00 0.00 0.00 35,430.46P-UD 0.00BUA BAN A&B- PUD CAPITAL

TRC Eco One Liner.rpt 1

Page 95: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Lease Name Life

(years)

Oil

(Mbbl)

Gas

(MMcf)

Gas

(M$)

Oil

(M$)

Other

(M$)

Expense

& Tax

(M$)Invest.

(M$)

Non-Disc.

(M$)

3/30/2010

Cash FlowNet Reserves Net Revenue

Ownership Group :

Project Name : As of Date:

Economic One-Liners

Reserve Category

2:32:57PM

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

Disc. 10%

(M$)Risked / UnRisked

12/31/2009

OFFSHORE LOCATION

BUA BAN Field

Probable Rsv Class 689,610.53 932,092.43 60,961.98 62,018.07 0.00 0.00 1,055,072.48 0.00Total 8.50 12,979.04

OFFSHORE LOCATION

BUA BAN Field

Probable Rsv Class

Undeveloped Rsv Category 689,610.53 932,092.43 60,961.98 62,018.07 0.00 0.00 1,055,072.48 0.00Total 8.50 12,979.04

97,709.95 74,205.38 5.82 0.00 0.00 98,716.48 0.00 0.00 1,006.53PR-UD 1,232.51BUA BAN A - PROB INCR 1,2

196,912.48 147,077.46 5.98 0.00 0.00 198,932.21 0.00 0.00 2,019.74PR-UD 2,467.16BUA BAN A - PROB INCR 3,4,5,6

198,620.44 145,894.84 6.15 0.00 0.00 200,646.99 0.00 0.00 2,026.54PR-UD 2,470.29BUA BAN B - PROB INCR 7,8,9,10

199,515.89 145,334.85 6.23 0.00 0.00 201,549.15 0.00 0.00 2,033.26PR-UD 2,471.97BUA BAN B - PROB INCR 11,12,13,14

150,228.97 108,499.13 6.32 0.00 0.00 151,756.40 0.00 0.00 1,527.43PR-UD 1,856.63BUA BAN A - PROB INCR 15,16,17

100,515.05 72,037.79 6.40 0.00 0.00 101,535.05 0.00 0.00 1,020.00PR-UD 1,239.38BUA BAN B - PROB INCR 18,19

93,289.17 65,088.32 6.48 0.00 0.00 101,936.19 0.00 0.00 8,647.02PR-UD 1,241.10BUA BAN B - PROB 20,21

-62,018.07 -36,163.70 7.00 0.00 0.00 0.00 0.00 62,018.07 0.00PR-UD 0.00BUA BAN A&B- PROB LOE

-42,681.45 -32,363.54 8.50 0.00 0.00 0.00 0.00 0.00 42,681.45PR-UD 0.00BUA BAN A&B- PROB CAPITAL

OFFSHORE LOCATION

BUA BAN Field

Possible Rsv Class 276,077.24 427,678.00 0.00 24,179.49 0.00 0.00 451,857.49 0.00Total 8.00 5,309.42

OFFSHORE LOCATION

BUA BAN Field

Possible Rsv Class

Undeveloped Rsv Category 276,077.24 427,678.00 0.00 24,179.49 0.00 0.00 451,857.49 0.00Total 8.00 5,309.42

451,857.49 287,730.79 7.37 0.00 0.00 451,857.49 0.00 0.00 0.00PS-UD 5,309.42BUA BAN A&B - POSS INCR

-24,179.49 -11,653.55 8.00 0.00 0.00 0.00 0.00 24,179.49 0.00PS-UD 0.00BUA BAN A&B- POSS LOE

OFFSHORE LOCATION

SONGKHLA EOCENE Field 240,001.65 350,554.54 19,685.50 45,001.66 0.00 0.00 415,241.69 0.00Total 10.00 4,970.67

OFFSHORE LOCATION

SONGKHLA EOCENE Field

Proved Rsv Class 4,979.89 5,815.02 246.21 6,972.67 0.00 0.00 13,033.90 0.00Total 8.00 165.10

TRC Eco One Liner.rpt 2

Page 96: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Lease Name Life

(years)

Oil

(Mbbl)

Gas

(MMcf)

Gas

(M$)

Oil

(M$)

Other

(M$)

Expense

& Tax

(M$)Invest.

(M$)

Non-Disc.

(M$)

3/30/2010

Cash FlowNet Reserves Net Revenue

Ownership Group :

Project Name : As of Date:

Economic One-Liners

Reserve Category

2:32:57PM

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

Disc. 10%

(M$)Risked / UnRisked

12/31/2009

OFFSHORE LOCATION

SONGKHLA EOCENE Field

Proved Rsv Class

Producing Rsv Category 4,979.89 5,815.02 246.21 6,972.67 0.00 0.00 13,033.90 0.00Total 8.00 165.10

12,787.69 10,177.49 7.66 0.00 0.00 13,033.90 0.00 0.00 246.21P-DP 165.10SONGKHLA EOCENE A-7

-6,972.67 -5,197.61 8.00 0.00 0.00 0.00 0.00 6,972.67 0.00P-DP 0.00SONGKHLA EOCENE PDP LOE

OFFSHORE LOCATION

SONGKHLA EOCENE Field

Probable Rsv Class 48,430.80 61,925.14 12,877.45 306.03 0.00 0.00 75,108.63 0.00Total 4.00 952.73

OFFSHORE LOCATION

SONGKHLA EOCENE Field

Probable Rsv Class

Undeveloped Rsv Category 48,430.80 61,925.14 12,877.45 306.03 0.00 0.00 75,108.63 0.00Total 4.00 952.73

62,231.17 48,647.65 3.87 0.00 0.00 75,108.63 0.00 0.00 12,877.45PR-UD 952.73SONGKHLA EOCENE PROB

-306.03 -216.85 4.00 0.00 0.00 0.00 0.00 306.03 0.00PR-UD 0.00SONGKHLA EOCENE PROB LOE

OFFSHORE LOCATION

SONGKHLA EOCENE Field

Possible Rsv Class 186,590.96 282,814.38 6,561.83 37,722.95 0.00 0.00 327,099.16 0.00Total 10.00 3,852.85

OFFSHORE LOCATION

SONGKHLA EOCENE Field

Possible Rsv Class

Undeveloped Rsv Category 186,590.96 282,814.38 6,561.83 37,722.95 0.00 0.00 327,099.16 0.00Total 10.00 3,852.85

320,537.33 203,573.38 9.23 0.00 0.00 327,099.16 0.00 0.00 6,561.83PS-UD 3,852.85SONGKHLA EOCENE POSS

-37,722.95 -16,982.42 10.00 0.00 0.00 0.00 0.00 37,722.95 0.00PS-UD 0.00SONGKHLA EOCENE POSS LOE

OFFSHORE LOCATION

SONGKHLA OLIGOCENE Field 519,252.26 640,331.90 15,613.17 167,757.35 0.00 0.00 823,702.41 0.00Total 8.00 10,442.04

OFFSHORE LOCATION

SONGKHLA OLIGOCENE Field

Proved Rsv Class 338,724.15 401,652.79 8,712.83 154,255.75 0.00 0.00 564,621.37 0.00Total 7.00 7,229.21

TRC Eco One Liner.rpt 3

Page 97: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Lease Name Life

(years)

Oil

(Mbbl)

Gas

(MMcf)

Gas

(M$)

Oil

(M$)

Other

(M$)

Expense

& Tax

(M$)Invest.

(M$)

Non-Disc.

(M$)

3/30/2010

Cash FlowNet Reserves Net Revenue

Ownership Group :

Project Name : As of Date:

Economic One-Liners

Reserve Category

2:32:57PM

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

Disc. 10%

(M$)Risked / UnRisked

12/31/2009

OFFSHORE LOCATION

SONGKHLA OLIGOCENE Field

Proved Rsv Class

Producing Rsv Category 186,016.77 215,830.12 3,200.75 143,639.92 0.00 0.00 362,670.79 0.00Total 7.00 4,642.29

113,519.00 90,205.55 6.78 0.00 0.00 113,765.21 0.00 0.00 246.21P-DP 1,443.95SONGKHLA - A-1

124,056.25 101,585.76 6.22 0.00 0.00 124,302.46 0.00 0.00 246.21P-DP 1,595.63SONGKHLA - A-3

124,356.90 102,382.48 6.60 0.00 0.00 124,603.11 0.00 0.00 246.21P-DP 1,602.72SONGKHLA - A-8

-143,639.92 -107,291.41 7.00 0.00 0.00 0.00 0.00 143,639.92 0.00P-DP 0.00SONGKHLA PDP LOE

-2,462.11 -865.61 4.00 0.00 0.00 0.00 0.00 0.00 2,462.11P-DP 0.00SONGKHLA OLIGOCENE - PDP CAPITAL

OFFSHORE LOCATION

SONGKHLA OLIGOCENE Field

Proved Rsv Class

Shut-In Rsv Category 152,707.38 185,822.67 5,512.08 10,615.83 0.00 0.00 201,950.58 0.00Total 7.00 2,586.92

95,894.00 77,095.83 6.20 0.00 0.00 99,657.35 0.00 0.00 3,763.34P-SI 1,275.51SONGKHLA - A-2

100,544.50 81,632.73 6.31 0.00 0.00 102,293.24 0.00 0.00 1,748.74P-SI 1,311.41SONGKHLA - A-4

-10,615.83 -6,021.18 7.00 0.00 0.00 0.00 0.00 10,615.83 0.00P-SI 0.00SONGKHLA PDSI LOE

OFFSHORE LOCATION

SONGKHLA OLIGOCENE Field

Probable Rsv Class 107,489.11 132,881.16 3,502.04 0.00 0.00 0.00 136,383.21 0.00Total 4.18 1,744.51

OFFSHORE LOCATION

SONGKHLA OLIGOCENE Field

Probable Rsv Class

Undeveloped Rsv Category 107,489.11 132,881.16 3,502.04 0.00 0.00 0.00 136,383.21 0.00Total 4.18 1,744.51

132,881.16 107,489.11 4.18 0.00 0.00 136,383.21 0.00 0.00 3,502.04PR-UD 1,744.51SONGKHLA - PROB INCREMENTAL

OFFSHORE LOCATION

SONGKHLA OLIGOCENE Field

Possible Rsv Class 73,039.00 105,797.95 3,398.30 13,501.60 0.00 0.00 122,697.84 0.00Total 8.00 1,468.32

TRC Eco One Liner.rpt 4

Page 98: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Lease Name Life

(years)

Oil

(Mbbl)

Gas

(MMcf)

Gas

(M$)

Oil

(M$)

Other

(M$)

Expense

& Tax

(M$)Invest.

(M$)

Non-Disc.

(M$)

3/30/2010

Cash FlowNet Reserves Net Revenue

Ownership Group :

Project Name : As of Date:

Economic One-Liners

Reserve Category

2:32:57PM

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

Disc. 10%

(M$)Risked / UnRisked

12/31/2009

OFFSHORE LOCATION

SONGKHLA OLIGOCENE Field

Possible Rsv Class

Undeveloped Rsv Category 73,039.00 105,797.95 3,398.30 13,501.60 0.00 0.00 122,697.84 0.00Total 8.00 1,468.32

119,299.54 80,076.39 7.05 0.00 0.00 122,697.84 0.00 0.00 3,398.30PS-UD 1,468.32SONGKHLA - POSS INCREMENTAL

-13,501.60 -7,037.39 8.00 0.00 0.00 0.00 0.00 13,501.60 0.00PS-UD 0.00SONGKHLA - POSS LOE

OFFSHORE LOCATION

SONGKHLA OLIGOCENE WEDGE Field 144,083.20 203,719.00 12,917.69 32,851.26 0.00 0.00 249,487.95 0.00Total 10.00 3,000.70

OFFSHORE LOCATION

SONGKHLA OLIGOCENE WEDGE Field

Possible Rsv Class 144,083.20 203,719.00 12,917.69 32,851.26 0.00 0.00 249,487.95 0.00Total 10.00 3,000.70

OFFSHORE LOCATION

SONGKHLA OLIGOCENE WEDGE Field

Possible Rsv Class

Undeveloped Rsv Category 144,083.20 203,719.00 12,917.69 32,851.26 0.00 0.00 249,487.95 0.00Total 10.00 3,000.70

236,570.26 158,782.85 9.63 0.00 0.00 249,487.95 0.00 0.00 12,917.69PS-UD 3,000.70SONGKHLA - POSS WEDGE

-32,851.26 -14,699.65 10.00 0.00 0.00 0.00 0.00 32,851.26 0.00PS-UD 0.00SONGKHLA - POSS WEDGE LOE

TRC Eco One Liner.rpt 5

Page 99: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTION03/30/2010 11:12:02AMDate :

278.79

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

2,058.78

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

GRAND TOTAL CASE

Total

72.59 0.00 4,101.96 0.00 3,755.72 0.00 272,627.36 0.00 0.002010

76.59 0.00 11,177.76 0.00 9,782.97 0.00 749,277.66 0.00 0.002011

79.59 0.00 11,314.49 0.00 9,963.72 0.00 793,012.30 0.00 0.002012

82.59 0.00 8,312.00 0.00 7,411.70 0.00 612,132.44 0.00 0.002013

85.59 0.00 5,290.02 0.00 4,795.26 0.00 410,426.64 0.00 0.002014

87.43 0.00 4,307.38 0.00 3,935.46 0.00 344,077.21 0.00 0.002015

89.31 0.00 2,357.23 0.00 2,198.01 0.00 196,304.24 0.00 0.002016

91.23 0.00 901.09 0.00 853.77 0.00 77,889.79 0.00 0.002017

93.18 0.00 466.83 0.00 443.49 0.00 41,324.65 0.00 0.002018

95.17 0.00 167.40 0.00 159.03 0.00 15,134.74 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

33.002010 0.00 0.00 142,755.01 32,486.31 0.00 97,386.04 0.00 0.00 92,664.12

52.002011 0.00 0.00 50,495.99 44,930.64 0.00 653,851.03 0.00 0.00 656,813.46

54.002012 0.00 0.00 3,152.09 45,830.09 0.00 744,030.12 0.00 0.00 1,238,567.30

54.002013 0.00 0.00 0.00 46,745.84 0.00 565,386.61 0.00 0.00 1,639,191.30

33.002014 0.00 0.00 0.00 47,680.75 0.00 362,745.88 0.00 0.00 1,871,569.34

29.002015 0.00 0.00 0.00 48,634.37 0.00 295,442.84 0.00 0.00 2,042,840.34

27.002016 0.00 0.00 0.00 49,607.96 0.00 146,696.28 0.00 0.00 2,120,388.02

13.002017 0.00 0.00 0.00 48,035.45 0.00 29,854.34 0.00 0.00 2,135,043.36

7.002018 0.00 0.00 13,488.73 28,288.98 0.00 -453.06 0.00 0.00 2,134,865.80

6.002019 0.00 0.00 0.00 10,089.96 0.00 5,044.78 0.00 0.00 2,136,977.21

0.002020 0.00 0.00 6,647.71 0.00 0.00 -6,647.71 0.00 0.00 2,134,640.07

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 216,539.53 402,330.35 0.00 2,893,337.16 0.00

0.00 0.00

0.00

0.00

2,134,640.07

0.00 0.00

81.11 0.00

0.00

50,454.96 278.79

0.00 0.00 0.00 0.00 0.00 0.00

48,396.18 0.00 43,299.13 0.00 3,512,207.04 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

12.34 / 14.36

0.94

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

2,477,038.26 2,134,640.07 1,851,158.59

20.00% :50.00% :

1,614,924.32 792,861.18

PW 535,891.0370.00% :

188,184.16

>1000

Hud Eco Detailed.rpt 1

Page 100: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTION

Proved Rsv Class

03/30/2010 11:12:02AMDate :

278.79

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

2,058.78

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK SUB-TOTAL CASE

Total

72.59 0.00 3,218.28 0.00 2,972.95 0.00 215,806.74 0.00 0.002010

76.59 0.00 4,947.18 0.00 4,495.29 0.00 344,294.06 0.00 0.002011

79.59 0.00 3,515.86 0.00 3,240.78 0.00 257,933.29 0.00 0.002012

82.59 0.00 2,139.45 0.00 2,002.01 0.00 165,345.62 0.00 0.002013

85.59 0.00 670.41 0.00 636.89 0.00 54,511.46 0.00 0.002014

87.43 0.00 495.14 0.00 470.38 0.00 41,125.67 0.00 0.002015

89.31 0.00 177.20 0.00 168.34 0.00 15,034.14 0.00 0.002016

91.23 0.00 5.18 0.00 4.92 0.00 449.30 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

22.002010 0.00 0.00 100,744.61 32,486.31 0.00 82,575.83 0.00 0.00 79,498.30

31.002011 0.00 0.00 7,140.00 44,930.64 0.00 292,223.42 0.00 0.00 331,596.73

31.002012 0.00 0.00 0.00 45,819.18 0.00 212,114.11 0.00 0.00 497,621.29

31.002013 0.00 0.00 0.00 46,450.71 0.00 118,894.91 0.00 0.00 582,471.34

12.002014 0.00 0.00 0.00 25,680.57 0.00 28,830.89 0.00 0.00 600,983.51

9.002015 0.00 0.00 0.00 25,982.33 0.00 15,143.34 0.00 0.00 609,802.30

9.002016 0.00 0.00 0.00 10,099.58 0.00 4,934.56 0.00 0.00 612,559.85

2.002017 0.00 0.00 0.00 301.62 0.00 147.68 0.00 0.00 612,633.60

0.002018 0.00 0.00 4,496.24 0.00 0.00 -4,496.24 0.00 0.00 610,704.20

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 610,704.20

0.002020 0.00 0.00 3,939.38 0.00 0.00 -3,939.38 0.00 0.00 609,319.23

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 116,320.23 231,750.94 0.00 746,429.11 0.00

0.00 0.00

0.00

0.00

609,319.23

0.00 0.00

78.23 0.00

0.00

17,227.49 278.79

0.00 0.00 0.00 0.00 0.00 0.00

15,168.71 0.00 13,991.56 0.00 1,094,500.28 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

6.83 / 7.42

0.65

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

673,506.34 609,319.23 552,803.69

20.00% :50.00% :

502,981.92 302,868.82

PW 227,418.2970.00% :

104,434.76

>1000

Hud Eco Detailed.rpt 2

Page 101: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTION

Proved Rsv ClassProducing Rsv Category

03/30/2010 11:12:02AMDate :

252.66

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

1,857.76

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK SUB-TOTAL CASE

Total

72.59 0.00 1,798.81 0.00 1,661.69 0.00 120,622.12 0.00 0.002010

76.59 0.00 1,117.09 0.00 1,015.05 0.00 77,742.93 0.00 0.002011

79.59 0.00 804.09 0.00 741.18 0.00 58,990.60 0.00 0.002012

82.59 0.00 584.94 0.00 547.36 0.00 45,206.55 0.00 0.002013

85.59 0.00 428.33 0.00 406.92 0.00 34,828.01 0.00 0.002014

87.43 0.00 314.17 0.00 298.46 0.00 26,094.57 0.00 0.002015

89.31 0.00 138.73 0.00 131.79 0.00 11,770.60 0.00 0.002016

91.23 0.00 5.18 0.00 4.92 0.00 449.30 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

7.002010 0.00 0.00 0.00 24,144.37 0.00 96,477.75 0.00 0.00 92,474.99

7.002011 0.00 0.00 0.00 24,627.26 0.00 53,115.68 0.00 0.00 138,435.79

7.002012 0.00 0.00 0.00 25,109.35 0.00 33,881.25 0.00 0.00 164,981.85

7.002013 0.00 0.00 0.00 25,327.07 0.00 19,879.48 0.00 0.00 179,096.12

6.002014 0.00 0.00 0.00 25,636.84 0.00 9,191.17 0.00 0.00 185,025.70

6.002015 0.00 0.00 0.00 17,561.56 0.00 8,533.01 0.00 0.00 190,000.02

6.002016 0.00 0.00 0.00 7,904.52 0.00 3,866.08 0.00 0.00 192,134.76

2.002017 0.00 0.00 0.00 301.62 0.00 147.68 0.00 0.00 192,208.51

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 192,208.51

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 192,208.51

0.002020 0.00 0.00 3,446.96 0.00 0.00 -3,446.96 0.00 0.00 190,996.65

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 3,446.96 150,612.59 0.00 221,645.13 0.00

0.00 0.00

0.00

0.00

190,996.65

0.00 0.00

78.15 0.00

0.00

7,049.12 252.66

0.00 0.00 0.00 0.00 0.00 0.00

5,191.36 0.00 4,807.39 0.00 375,704.69 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

158.61 / 65.30

0.02

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

205,384.22 190,996.65 178,287.14

20.00% :50.00% :

167,049.74 121,068.59

PW 102,660.1670.00% :

1,211.85

>1000

Hud Eco Detailed.rpt 3

Page 102: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTION

Proved Rsv ClassShut-In Rsv Category

03/30/2010 11:12:02AMDate :

26.13

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

201.02

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK SUB-TOTAL CASE

Total

72.59 0.00 966.67 0.00 892.98 0.00 64,821.17 0.00 0.002010

76.59 0.00 613.45 0.00 557.41 0.00 42,692.14 0.00 0.002011

79.59 0.00 431.72 0.00 397.94 0.00 31,672.38 0.00 0.002012

82.59 0.00 321.60 0.00 300.94 0.00 24,854.43 0.00 0.002013

85.59 0.00 241.25 0.00 229.18 0.00 19,615.83 0.00 0.002014

87.43 0.00 180.97 0.00 171.92 0.00 15,031.10 0.00 0.002015

89.31 0.00 38.47 0.00 36.54 0.00 3,263.54 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

3.002010 0.00 0.00 5,019.66 0.00 0.00 59,801.51 0.00 0.00 56,578.64

3.002011 0.00 0.00 0.00 0.00 0.00 42,692.14 0.00 0.00 93,499.67

3.002012 0.00 0.00 0.00 0.00 0.00 31,672.38 0.00 0.00 118,261.37

3.002013 0.00 0.00 0.00 0.00 0.00 24,854.43 0.00 0.00 135,848.07

3.002014 0.00 0.00 0.00 0.00 0.00 19,615.83 0.00 0.00 148,413.21

3.002015 0.00 0.00 0.00 8,420.77 0.00 6,610.33 0.00 0.00 152,257.69

3.002016 0.00 0.00 0.00 2,195.06 0.00 1,068.48 0.00 0.00 152,880.50

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 152,880.50

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 152,880.50

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 152,880.50

0.002020 0.00 0.00 492.42 0.00 0.00 -492.42 0.00 0.00 152,707.38

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 5,512.08 10,615.83 0.00 185,822.67 0.00

0.00 0.00

0.00

0.00

152,707.38

0.00 0.00

78.07 0.00

0.00

2,995.13 26.13

0.00 0.00 0.00 0.00 0.00 0.00

2,794.11 0.00 2,586.92 0.00 201,950.58 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

30.97 / 34.71

0.23

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

167,997.96 152,707.38 139,527.56

20.00% :50.00% :

128,109.55 83,629.20

PW 66,938.6370.00% :

5,094.88

>1000

Hud Eco Detailed.rpt 4

Page 103: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTION

Proved Rsv ClassUndeveloped Rsv Category

03/30/2010 11:12:02AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK SUB-TOTAL CASE

Total

72.59 0.00 452.80 0.00 418.29 0.00 30,363.45 0.00 0.002010

76.59 0.00 3,216.64 0.00 2,922.82 0.00 223,858.98 0.00 0.002011

79.59 0.00 2,280.04 0.00 2,101.65 0.00 167,270.31 0.00 0.002012

82.59 0.00 1,232.91 0.00 1,153.71 0.00 95,284.64 0.00 0.002013

85.59 0.00 0.83 0.00 0.79 0.00 67.62 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

12.002010 0.00 0.00 95,724.95 8,341.94 0.00 -73,703.44 0.00 0.00 -69,555.33

21.002011 0.00 0.00 7,140.00 20,303.38 0.00 196,415.60 0.00 0.00 99,661.27

21.002012 0.00 0.00 0.00 20,709.83 0.00 146,560.48 0.00 0.00 214,378.06

21.002013 0.00 0.00 0.00 21,123.64 0.00 74,161.00 0.00 0.00 267,527.14

3.002014 0.00 0.00 0.00 43.72 0.00 23.90 0.00 0.00 267,544.59

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 267,544.59

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 267,544.59

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 267,544.59

0.002018 0.00 0.00 4,496.24 0.00 0.00 -4,496.24 0.00 0.00 265,615.19

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 107,361.19 70,522.52 0.00 338,961.30 0.00

0.00 0.00

0.00

0.00

265,615.19

0.00 0.00

78.34 0.00

0.00

7,183.23 0.00

0.00 0.00 0.00 0.00 0.00 0.00

7,183.23 0.00 6,597.26 0.00 516,845.01 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

3.71 / 4.16

1.39

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

300,124.16 265,615.19 234,988.99

20.00% :50.00% :

207,822.63 98,171.03

PW 57,819.5070.00% :

98,128.03

143.81

Hud Eco Detailed.rpt 5

Page 104: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTION

Probable Rsv Class

03/30/2010 11:12:02AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK SUB-TOTAL CASE

Total

72.59 0.00 883.68 0.00 782.76 0.00 56,820.62 0.00 0.002010

76.59 0.00 4,937.92 0.00 4,253.56 0.00 325,780.01 0.00 0.002011

79.59 0.00 4,179.66 0.00 3,646.82 0.00 290,250.51 0.00 0.002012

82.59 0.00 3,372.32 0.00 2,987.29 0.00 246,720.39 0.00 0.002013

85.59 0.00 2,258.91 0.00 2,076.00 0.00 177,684.56 0.00 0.002014

87.43 0.00 1,743.36 0.00 1,620.77 0.00 141,703.92 0.00 0.002015

89.31 0.00 325.35 0.00 309.08 0.00 27,604.28 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

7.002010 0.00 0.00 23,761.94 0.00 0.00 33,058.69 0.00 0.00 30,199.79

13.002011 0.00 0.00 43,355.99 0.00 0.00 282,424.02 0.00 0.00 273,918.38

13.002012 0.00 0.00 0.00 10.91 0.00 290,239.61 0.00 0.00 500,661.16

13.002013 0.00 0.00 0.00 295.13 0.00 246,425.26 0.00 0.00 674,973.33

11.002014 0.00 0.00 0.00 21,502.39 0.00 156,182.17 0.00 0.00 775,121.37

10.002015 0.00 0.00 0.00 21,977.04 0.00 119,726.89 0.00 0.00 844,586.71

8.002016 0.00 0.00 0.00 18,538.65 0.00 9,065.63 0.00 0.00 849,822.04

1.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 849,822.04

1.002018 0.00 0.00 8,992.48 0.00 0.00 -8,992.48 0.00 0.00 845,963.24

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 845,963.24

0.002020 0.00 0.00 1,231.06 0.00 0.00 -1,231.06 0.00 0.00 845,530.44

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 77,341.47 62,324.11 0.00 1,126,898.73 0.00

0.00 0.00

0.00

0.00

845,530.44

0.00 0.00

80.79 0.00

0.00

17,701.21 0.00

0.00 0.00 0.00 0.00 0.00 0.00

17,701.21 0.00 15,676.28 0.00 1,266,564.31 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

14.27 / 15.57

1.07

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

973,898.81 845,530.44 737,402.57

20.00% :50.00% :

645,944.75 317,392.69

PW 211,313.5270.00% :

63,737.92

604.44

Hud Eco Detailed.rpt 6

Page 105: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTION

Probable Rsv ClassUndeveloped Rsv Category

03/30/2010 11:12:02AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK SUB-TOTAL CASE

Total

72.59 0.00 883.68 0.00 782.76 0.00 56,820.62 0.00 0.002010

76.59 0.00 4,937.92 0.00 4,253.56 0.00 325,780.01 0.00 0.002011

79.59 0.00 4,179.66 0.00 3,646.82 0.00 290,250.51 0.00 0.002012

82.59 0.00 3,372.32 0.00 2,987.29 0.00 246,720.39 0.00 0.002013

85.59 0.00 2,258.91 0.00 2,076.00 0.00 177,684.56 0.00 0.002014

87.43 0.00 1,743.36 0.00 1,620.77 0.00 141,703.92 0.00 0.002015

89.31 0.00 325.35 0.00 309.08 0.00 27,604.28 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

7.002010 0.00 0.00 23,761.94 0.00 0.00 33,058.69 0.00 0.00 30,199.79

13.002011 0.00 0.00 43,355.99 0.00 0.00 282,424.02 0.00 0.00 273,918.38

13.002012 0.00 0.00 0.00 10.91 0.00 290,239.61 0.00 0.00 500,661.16

13.002013 0.00 0.00 0.00 295.13 0.00 246,425.26 0.00 0.00 674,973.33

11.002014 0.00 0.00 0.00 21,502.39 0.00 156,182.17 0.00 0.00 775,121.37

10.002015 0.00 0.00 0.00 21,977.04 0.00 119,726.89 0.00 0.00 844,586.71

8.002016 0.00 0.00 0.00 18,538.65 0.00 9,065.63 0.00 0.00 849,822.04

1.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 849,822.04

1.002018 0.00 0.00 8,992.48 0.00 0.00 -8,992.48 0.00 0.00 845,963.24

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 845,963.24

0.002020 0.00 0.00 1,231.06 0.00 0.00 -1,231.06 0.00 0.00 845,530.44

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 77,341.47 62,324.11 0.00 1,126,898.73 0.00

0.00 0.00

0.00

0.00

845,530.44

0.00 0.00

80.79 0.00

0.00

17,701.21 0.00

0.00 0.00 0.00 0.00 0.00 0.00

17,701.21 0.00 15,676.28 0.00 1,266,564.31 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

14.27 / 15.57

1.07

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

973,898.81 845,530.44 737,402.57

20.00% :50.00% :

645,944.75 317,392.69

PW 211,313.5270.00% :

63,737.92

604.44

Hud Eco Detailed.rpt 7

Page 106: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTION

Possible Rsv Class

03/30/2010 11:12:02AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK SUB-TOTAL CASE

Total

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 1,292.66 0.00 1,034.12 0.00 79,203.59 0.00 0.002011

79.59 0.00 3,618.97 0.00 3,076.12 0.00 244,828.49 0.00 0.002012

82.59 0.00 2,800.24 0.00 2,422.41 0.00 200,066.43 0.00 0.002013

85.59 0.00 2,360.70 0.00 2,082.38 0.00 178,230.61 0.00 0.002014

87.43 0.00 2,068.88 0.00 1,844.31 0.00 161,247.62 0.00 0.002015

89.31 0.00 1,854.69 0.00 1,720.59 0.00 153,665.82 0.00 0.002016

91.23 0.00 895.91 0.00 848.85 0.00 77,440.49 0.00 0.002017

93.18 0.00 466.83 0.00 443.49 0.00 41,324.65 0.00 0.002018

95.17 0.00 167.40 0.00 159.03 0.00 15,134.74 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

4.002010 0.00 0.00 18,248.47 0.00 0.00 -18,248.47 0.00 0.00 -17,033.98

8.002011 0.00 0.00 0.00 0.00 0.00 79,203.59 0.00 0.00 51,298.36

10.002012 0.00 0.00 3,152.09 0.00 0.00 241,676.41 0.00 0.00 240,284.86

10.002013 0.00 0.00 0.00 0.00 0.00 200,066.43 0.00 0.00 381,746.63

10.002014 0.00 0.00 0.00 497.80 0.00 177,732.82 0.00 0.00 495,464.46

10.002015 0.00 0.00 0.00 675.01 0.00 160,572.61 0.00 0.00 588,451.33

10.002016 0.00 0.00 0.00 20,969.73 0.00 132,696.09 0.00 0.00 658,006.13

10.002017 0.00 0.00 0.00 47,733.83 0.00 29,706.66 0.00 0.00 672,587.72

6.002018 0.00 0.00 0.00 28,288.98 0.00 13,035.67 0.00 0.00 678,198.36

6.002019 0.00 0.00 0.00 10,089.96 0.00 5,044.78 0.00 0.00 680,309.76

0.002020 0.00 0.00 1,477.27 0.00 0.00 -1,477.27 0.00 0.00 679,790.40

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 22,877.82 108,255.30 0.00 1,020,009.32 0.00

0.00 0.00

0.00

0.00

679,790.40

0.00 0.00

84.45 0.00

0.00

15,526.26 0.00

0.00 0.00 0.00 0.00 0.00 0.00

15,526.26 0.00 13,631.29 0.00 1,151,142.44 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

34.97 / 45.59

1.26

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

829,633.11 679,790.40 560,952.32

20.00% :50.00% :

465,997.65 172,599.67

PW 97,159.2170.00% :

20,011.49

272.44

Hud Eco Detailed.rpt 8

Page 107: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTION

Possible Rsv ClassUndeveloped Rsv Category

03/30/2010 11:12:02AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK SUB-TOTAL CASE

Total

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 1,292.66 0.00 1,034.12 0.00 79,203.59 0.00 0.002011

79.59 0.00 3,618.97 0.00 3,076.12 0.00 244,828.49 0.00 0.002012

82.59 0.00 2,800.24 0.00 2,422.41 0.00 200,066.43 0.00 0.002013

85.59 0.00 2,360.70 0.00 2,082.38 0.00 178,230.61 0.00 0.002014

87.43 0.00 2,068.88 0.00 1,844.31 0.00 161,247.62 0.00 0.002015

89.31 0.00 1,854.69 0.00 1,720.59 0.00 153,665.82 0.00 0.002016

91.23 0.00 895.91 0.00 848.85 0.00 77,440.49 0.00 0.002017

93.18 0.00 466.83 0.00 443.49 0.00 41,324.65 0.00 0.002018

95.17 0.00 167.40 0.00 159.03 0.00 15,134.74 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

4.002010 0.00 0.00 18,248.47 0.00 0.00 -18,248.47 0.00 0.00 -17,033.98

8.002011 0.00 0.00 0.00 0.00 0.00 79,203.59 0.00 0.00 51,298.36

10.002012 0.00 0.00 3,152.09 0.00 0.00 241,676.41 0.00 0.00 240,284.86

10.002013 0.00 0.00 0.00 0.00 0.00 200,066.43 0.00 0.00 381,746.63

10.002014 0.00 0.00 0.00 497.80 0.00 177,732.82 0.00 0.00 495,464.46

10.002015 0.00 0.00 0.00 675.01 0.00 160,572.61 0.00 0.00 588,451.33

10.002016 0.00 0.00 0.00 20,969.73 0.00 132,696.09 0.00 0.00 658,006.13

10.002017 0.00 0.00 0.00 47,733.83 0.00 29,706.66 0.00 0.00 672,587.72

6.002018 0.00 0.00 0.00 28,288.98 0.00 13,035.67 0.00 0.00 678,198.36

6.002019 0.00 0.00 0.00 10,089.96 0.00 5,044.78 0.00 0.00 680,309.76

0.002020 0.00 0.00 1,477.27 0.00 0.00 -1,477.27 0.00 0.00 679,790.40

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 22,877.82 108,255.30 0.00 1,020,009.32 0.00

0.00 0.00

0.00

0.00

679,790.40

0.00 0.00

84.45 0.00

0.00

15,526.26 0.00

0.00 0.00 0.00 0.00 0.00 0.00

15,526.26 0.00 13,631.29 0.00 1,151,142.44 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

34.97 / 45.59

1.26

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

829,633.11 679,790.40 560,952.32

20.00% :50.00% :

465,997.65 172,599.67

PW 97,159.2170.00% :

20,011.49

272.44

Hud Eco Detailed.rpt 9

Page 108: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

03/30/2010 11:12:02AMDate :

278.79

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

2,058.78

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

72.59 0.00 4,101.96 0.00 3,755.72 0.00 272,627.36 0.00 0.002010

76.59 0.00 11,177.76 0.00 9,782.97 0.00 749,277.66 0.00 0.002011

79.59 0.00 11,314.49 0.00 9,963.72 0.00 793,012.30 0.00 0.002012

82.59 0.00 8,312.00 0.00 7,411.70 0.00 612,132.44 0.00 0.002013

85.59 0.00 5,290.02 0.00 4,795.26 0.00 410,426.64 0.00 0.002014

87.43 0.00 4,307.38 0.00 3,935.46 0.00 344,077.21 0.00 0.002015

89.31 0.00 2,357.23 0.00 2,198.01 0.00 196,304.24 0.00 0.002016

91.23 0.00 901.09 0.00 853.77 0.00 77,889.79 0.00 0.002017

93.18 0.00 466.83 0.00 443.49 0.00 41,324.65 0.00 0.002018

95.17 0.00 167.40 0.00 159.03 0.00 15,134.74 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

33.002010 0.00 0.00 142,755.01 32,486.31 0.00 97,386.04 0.00 0.00 92,664.12

52.002011 0.00 0.00 50,495.99 44,930.64 0.00 653,851.03 0.00 0.00 656,813.46

54.002012 0.00 0.00 3,152.09 45,830.09 0.00 744,030.12 0.00 0.00 1,238,567.30

54.002013 0.00 0.00 0.00 46,745.84 0.00 565,386.61 0.00 0.00 1,639,191.30

33.002014 0.00 0.00 0.00 47,680.75 0.00 362,745.88 0.00 0.00 1,871,569.34

29.002015 0.00 0.00 0.00 48,634.37 0.00 295,442.84 0.00 0.00 2,042,840.34

27.002016 0.00 0.00 0.00 49,607.96 0.00 146,696.28 0.00 0.00 2,120,388.02

13.002017 0.00 0.00 0.00 48,035.45 0.00 29,854.34 0.00 0.00 2,135,043.36

7.002018 0.00 0.00 13,488.73 28,288.98 0.00 -453.06 0.00 0.00 2,134,865.80

6.002019 0.00 0.00 0.00 10,089.96 0.00 5,044.78 0.00 0.00 2,136,977.21

0.002020 0.00 0.00 6,647.71 0.00 0.00 -6,647.71 0.00 0.00 2,134,640.07

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 216,539.53 402,330.35 0.00 2,893,337.16 0.00

0.00 0.00

0.00

0.00

2,134,640.07

0.00 0.00

81.11 0.00

0.00

50,454.96 278.79

0.00 0.00 0.00 0.00 0.00 0.00

48,396.18 0.00 43,299.13 0.00 3,512,207.04 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

12.34 / 14.36

0.94

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

2,477,038.26 2,134,640.07 1,851,158.59

20.00% :50.00% :

1,614,924.32 792,861.18

PW 535,891.0370.00% :

188,184.16

>1000

Hud Eco Detailed.rpt 10

Page 109: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

BUA BAN Field

03/30/2010 11:12:02AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

72.59 0.00 917.06 0.00 829.53 0.00 60,215.25 0.00 0.002010

76.59 0.00 7,081.19 0.00 6,251.77 0.00 478,822.80 0.00 0.002011

79.59 0.00 6,892.36 0.00 6,097.20 0.00 485,276.31 0.00 0.002012

82.59 0.00 5,126.06 0.00 4,577.53 0.00 378,058.50 0.00 0.002013

85.59 0.00 3,312.05 0.00 3,002.37 0.00 256,972.74 0.00 0.002014

87.43 0.00 2,800.17 0.00 2,562.86 0.00 224,071.13 0.00 0.002015

89.31 0.00 1,321.23 0.00 1,232.96 0.00 110,115.32 0.00 0.002016

91.23 0.00 349.88 0.00 331.50 0.00 30,242.94 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

18.002010 0.00 0.00 104,338.45 8,341.94 0.00 -52,465.14 0.00 0.00 -50,196.25

32.002011 0.00 0.00 50,495.99 20,303.38 0.00 408,023.42 0.00 0.00 301,576.20

33.002012 0.00 0.00 0.00 20,709.83 0.00 464,566.48 0.00 0.00 664,648.63

33.002013 0.00 0.00 0.00 21,123.64 0.00 356,934.86 0.00 0.00 917,684.22

15.002014 0.00 0.00 0.00 21,546.11 0.00 235,426.62 0.00 0.00 1,068,352.39

12.002015 0.00 0.00 0.00 21,977.04 0.00 202,094.09 0.00 0.00 1,185,492.77

10.002016 0.00 0.00 0.00 22,416.98 0.00 87,698.33 0.00 0.00 1,231,925.54

3.002017 0.00 0.00 0.00 20,301.16 0.00 9,941.79 0.00 0.00 1,237,091.15

1.002018 0.00 0.00 13,488.73 0.00 0.00 -13,488.73 0.00 0.00 1,231,302.96

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 168,323.17 156,720.08 0.00 1,698,731.73 0.00

0.00 0.00

0.00

0.00

1,231,302.96

0.00 0.00

81.32 0.00

0.00

27,800.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

27,800.00 0.00 24,885.72 0.00 2,023,774.98 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

9.38 / 11.09

1.26

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

1,442,479.23 1,231,302.96 1,056,296.76

20.00% :50.00% :

910,455.02 405,852.41

PW 251,420.5770.00% :

147,014.48

255.19

Hud Eco Detailed.rpt 11

Page 110: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

BUA BAN FieldProved Rsv Class

03/30/2010 11:12:02AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

72.59 0.00 452.80 0.00 418.29 0.00 30,363.45 0.00 0.002010

76.59 0.00 3,216.64 0.00 2,922.82 0.00 223,858.98 0.00 0.002011

79.59 0.00 2,280.04 0.00 2,101.65 0.00 167,270.31 0.00 0.002012

82.59 0.00 1,232.91 0.00 1,153.71 0.00 95,284.64 0.00 0.002013

85.59 0.00 0.83 0.00 0.79 0.00 67.62 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

12.002010 0.00 0.00 95,724.95 8,341.94 0.00 -73,703.44 0.00 0.00 -69,555.33

21.002011 0.00 0.00 7,140.00 20,303.38 0.00 196,415.60 0.00 0.00 99,661.27

21.002012 0.00 0.00 0.00 20,709.83 0.00 146,560.48 0.00 0.00 214,378.06

21.002013 0.00 0.00 0.00 21,123.64 0.00 74,161.00 0.00 0.00 267,527.14

3.002014 0.00 0.00 0.00 43.72 0.00 23.90 0.00 0.00 267,544.59

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 267,544.59

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 267,544.59

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 267,544.59

0.002018 0.00 0.00 4,496.24 0.00 0.00 -4,496.24 0.00 0.00 265,615.19

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 107,361.19 70,522.52 0.00 338,961.30 0.00

0.00 0.00

0.00

0.00

265,615.19

0.00 0.00

78.34 0.00

0.00

7,183.23 0.00

0.00 0.00 0.00 0.00 0.00 0.00

7,183.23 0.00 6,597.26 0.00 516,845.01 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

3.71 / 4.16

1.39

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

300,124.16 265,615.19 234,988.99

20.00% :50.00% :

207,822.63 98,171.03

PW 57,819.5070.00% :

98,128.03

143.81

Hud Eco Detailed.rpt 12

Page 111: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

BUA BAN FieldProved Rsv Class

Undeveloped Rsv Category

03/30/2010 11:12:02AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

72.59 0.00 452.80 0.00 418.29 0.00 30,363.45 0.00 0.002010

76.59 0.00 3,216.64 0.00 2,922.82 0.00 223,858.98 0.00 0.002011

79.59 0.00 2,280.04 0.00 2,101.65 0.00 167,270.31 0.00 0.002012

82.59 0.00 1,232.91 0.00 1,153.71 0.00 95,284.64 0.00 0.002013

85.59 0.00 0.83 0.00 0.79 0.00 67.62 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

12.002010 0.00 0.00 95,724.95 8,341.94 0.00 -73,703.44 0.00 0.00 -69,555.33

21.002011 0.00 0.00 7,140.00 20,303.38 0.00 196,415.60 0.00 0.00 99,661.27

21.002012 0.00 0.00 0.00 20,709.83 0.00 146,560.48 0.00 0.00 214,378.06

21.002013 0.00 0.00 0.00 21,123.64 0.00 74,161.00 0.00 0.00 267,527.14

3.002014 0.00 0.00 0.00 43.72 0.00 23.90 0.00 0.00 267,544.59

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 267,544.59

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 267,544.59

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 267,544.59

0.002018 0.00 0.00 4,496.24 0.00 0.00 -4,496.24 0.00 0.00 265,615.19

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 107,361.19 70,522.52 0.00 338,961.30 0.00

0.00 0.00

0.00

0.00

265,615.19

0.00 0.00

78.34 0.00

0.00

7,183.23 0.00

0.00 0.00 0.00 0.00 0.00 0.00

7,183.23 0.00 6,597.26 0.00 516,845.01 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

3.71 / 4.16

1.39

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

300,124.16 265,615.19 234,988.99

20.00% :50.00% :

207,822.63 98,171.03

PW 57,819.5070.00% :

98,128.03

143.81

Hud Eco Detailed.rpt 13

Page 112: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN A - PUD 1,212/31/2009

72.59 0.00 169.40 0.00 156.49 0.00 11,359.58 0.00 0.002010

76.59 0.00 308.90 0.00 280.68 0.00 21,497.40 0.00 0.002011

79.59 0.00 210.47 0.00 194.00 0.00 15,440.59 0.00 0.002012

82.59 0.00 67.36 0.00 63.03 0.00 5,205.89 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

2.002010 0.00 0.00 7,045.72 0.00 0.00 4,313.86 0.00 0.00 3,686.88

2.002011 0.00 0.00 0.00 0.00 0.00 21,497.40 0.00 0.00 22,268.09

2.002012 0.00 0.00 0.00 0.00 0.00 15,440.59 0.00 0.00 34,348.35

2.002013 0.00 0.00 0.00 0.00 0.00 5,205.89 0.00 0.00 38,130.78

0.002014 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 38,130.78

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 38,130.78

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 38,130.78

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 38,130.78

0.002018 0.00 0.00 473.29 0.00 0.00 -473.29 0.00 0.00 37,927.68

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 7,519.01 0.00 0.00 45,984.45 0.00

0.00 0.00

0.00

0.00

37,927.68

0.00 0.00

77.07 0.00

0.00

756.13 0.00

0.00 0.00 0.00 0.00 0.00 0.00

756.13 0.00 694.21 0.00 53,503.46 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

32.03

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.92377000

06/04/2013

6.40 / 7.12

0.85

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

41,751.98 37,927.68 34,475.93

20.00% :50.00% :

31,361.35 18,051.77

PW 12,634.8070.00% :

7,022.02

36,500.00 12,166.67

230.25

Hud Eco Detailed.rpt 14

Page 113: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN A - PUD 3,4,5,612/31/2009

72.59 0.00 210.26 0.00 194.23 0.00 14,099.10 0.00 0.002010

76.59 0.00 658.95 0.00 598.76 0.00 45,859.12 0.00 0.002011

79.59 0.00 448.98 0.00 413.85 0.00 32,938.49 0.00 0.002012

82.59 0.00 194.07 0.00 181.60 0.00 14,998.49 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

4.002010 0.00 0.00 14,138.16 0.00 0.00 -39.06 0.00 0.00 -531.29

4.002011 0.00 0.00 0.00 0.00 0.00 45,859.12 0.00 0.00 39,106.91

4.002012 0.00 0.00 0.00 0.00 0.00 32,938.49 0.00 0.00 64,877.00

4.002013 0.00 0.00 0.00 0.00 0.00 14,998.49 0.00 0.00 75,690.85

0.002014 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 75,690.85

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 75,690.85

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 75,690.85

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 75,690.85

0.002018 0.00 0.00 946.58 0.00 0.00 -946.58 0.00 0.00 75,284.66

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 15,084.73 0.00 0.00 92,810.47 0.00

0.00 0.00

0.00

0.00

75,284.66

0.00 0.00

77.71 0.00

0.00

1,512.26 0.00

0.00 0.00 0.00 0.00 0.00 0.00

1,512.26 0.00 1,388.44 0.00 107,895.21 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

32.03

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.92377000

08/04/2013

6.43 / 7.15

1.02

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

83,565.69 75,284.66 67,872.34

20.00% :50.00% :

61,238.02 33,591.36

PW 22,786.0270.00% :

13,863.57

73,000.00 24,333.33

231.03

Hud Eco Detailed.rpt 15

Page 114: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN B - PUD 7,8,9,1012/31/2009

72.59 0.00 73.14 0.00 67.57 0.00 4,904.77 0.00 0.002010

76.59 0.00 702.85 0.00 638.65 0.00 48,914.27 0.00 0.002011

79.59 0.00 478.89 0.00 441.42 0.00 35,132.86 0.00 0.002012

82.59 0.00 257.37 0.00 240.84 0.00 19,890.77 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

4.002010 0.00 0.00 14,185.79 0.00 0.00 -9,281.03 0.00 0.00 -8,818.03

4.002011 0.00 0.00 0.00 0.00 0.00 48,914.27 0.00 0.00 33,460.88

4.002012 0.00 0.00 0.00 0.00 0.00 35,132.86 0.00 0.00 60,947.78

4.002013 0.00 0.00 0.00 0.00 0.00 19,890.77 0.00 0.00 75,181.77

0.002014 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 75,181.77

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 75,181.77

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 75,181.77

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 75,181.77

0.002018 0.00 0.00 946.58 0.00 0.00 -946.58 0.00 0.00 74,775.58

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 15,132.37 0.00 0.00 93,710.30 0.00

0.00 0.00

0.00

0.00

74,775.58

0.00 0.00

78.39 0.00

0.00

1,512.26 0.00

0.00 0.00 0.00 0.00 0.00 0.00

1,512.26 0.00 1,388.48 0.00 108,842.67 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

32.03

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.92377000

10/04/2013

6.47 / 7.19

1.18

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

83,681.90 74,775.58 66,869.18

20.00% :50.00% :

59,849.48 31,316.54

PW 20,606.5870.00% :

13,682.57

73,000.00 24,333.33

233.56

Hud Eco Detailed.rpt 16

Page 115: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN B - PUD 11,12,13,1412/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 726.27 0.00 659.93 0.00 50,544.05 0.00 0.002011

79.59 0.00 494.85 0.00 456.13 0.00 36,303.46 0.00 0.002012

82.59 0.00 291.14 0.00 272.44 0.00 22,500.59 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

0.002010 0.00 0.00 14,232.82 0.00 0.00 -14,232.82 0.00 0.00 -13,100.69

4.002011 0.00 0.00 0.00 0.00 0.00 50,544.05 0.00 0.00 30,586.92

4.002012 0.00 0.00 0.00 0.00 0.00 36,303.46 0.00 0.00 58,989.66

4.002013 0.00 0.00 0.00 0.00 0.00 22,500.59 0.00 0.00 75,031.13

0.002014 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 75,031.13

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 75,031.13

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 75,031.13

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 75,031.13

0.002018 0.00 0.00 946.58 0.00 0.00 -946.58 0.00 0.00 74,624.95

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 15,179.40 0.00 0.00 94,168.71 0.00

0.00 0.00

0.00

0.00

74,624.95

0.00 0.00

78.75 0.00

0.00

1,512.26 0.00

0.00 0.00 0.00 0.00 0.00 0.00

1,512.26 0.00 1,388.50 0.00 109,348.10 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

32.03

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.92377000

11/04/2013

6.53 / 7.20

1.26

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

83,795.72 74,624.95 66,519.43

20.00% :50.00% :

59,353.75 30,607.52

PW 20,041.8870.00% :

13,506.88

73,000.00 24,333.33

273.81

Hud Eco Detailed.rpt 17

Page 116: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN A - PUD 15,16,1712/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 506.17 0.00 459.93 0.00 35,226.12 0.00 0.002011

79.59 0.00 383.50 0.00 353.50 0.00 28,134.80 0.00 0.002012

82.59 0.00 244.53 0.00 228.82 0.00 18,898.02 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

0.002010 0.00 0.00 10,692.00 0.00 0.00 -10,692.00 0.00 0.00 -9,761.35

3.002011 0.00 0.00 0.00 0.00 0.00 35,226.12 0.00 0.00 20,540.34

3.002012 0.00 0.00 0.00 0.00 0.00 28,134.80 0.00 0.00 42,552.16

3.002013 0.00 0.00 0.00 0.00 0.00 18,898.02 0.00 0.00 55,975.78

0.002014 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 55,975.78

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 55,975.78

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 55,975.78

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 55,975.78

0.002018 0.00 0.00 709.93 0.00 0.00 -709.93 0.00 0.00 55,671.14

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 11,401.94 0.00 0.00 70,857.01 0.00

0.00 0.00

0.00

0.00

55,671.14

0.00 0.00

78.92 0.00

0.00

1,134.19 0.00

0.00 0.00 0.00 0.00 0.00 0.00

1,134.19 0.00 1,042.25 0.00 82,258.94 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

32.03

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.92377000

12/05/2013

6.53 / 7.21

1.35

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

62,780.73 55,671.14 49,413.55

20.00% :50.00% :

43,904.09 22,077.34

PW 14,217.8370.00% :

10,065.99

54,750.00 18,250.00

272.15

Hud Eco Detailed.rpt 18

Page 117: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN B - PUD 18,1912/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 313.50 0.00 284.87 0.00 21,818.01 0.00 0.002011

79.59 0.00 263.35 0.00 242.75 0.00 19,320.11 0.00 0.002012

82.59 0.00 178.44 0.00 166.98 0.00 13,790.88 0.00 0.002013

85.59 0.00 0.83 0.00 0.79 0.00 67.62 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

0.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

2.002011 0.00 0.00 7,140.00 0.00 0.00 14,678.01 0.00 0.00 12,223.60

2.002012 0.00 0.00 0.00 0.00 0.00 19,320.11 0.00 0.00 27,339.07

2.002013 0.00 0.00 0.00 0.00 0.00 13,790.88 0.00 0.00 37,105.19

2.002014 0.00 0.00 0.00 0.00 0.00 67.62 0.00 0.00 37,150.58

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 37,150.58

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 37,150.58

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 37,150.58

0.002018 0.00 0.00 473.29 0.00 0.00 -473.29 0.00 0.00 36,947.48

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 7,613.29 0.00 0.00 47,383.33 0.00

0.00 0.00

0.00

0.00

36,947.48

0.00 0.00

79.09 0.00

0.00

756.13 0.00

0.00 0.00 0.00 0.00 0.00 0.00

756.13 0.00 695.38 0.00 54,996.62 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

32.03

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.92377000

01/02/2014

6.54 / 7.22

1.43

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

41,823.11 36,947.48 32,672.37

20.00% :50.00% :

28,922.31 14,233.22

PW 9,041.1170.00% :

6,666.75

36,500.00 12,166.67

276.68

Hud Eco Detailed.rpt 19

Page 118: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, THAILAND

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN A&B- PUD LOE12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002012

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 8,341.94 0.00 -8,341.94 0.00 0.00 -7,710.60

1.002011 0.00 0.00 0.00 20,303.38 0.00 -20,303.38 0.00 0.00 -25,205.25

1.002012 0.00 0.00 0.00 20,709.83 0.00 -20,709.83 0.00 0.00 -41,355.72

1.002013 0.00 0.00 0.00 21,123.64 0.00 -21,123.64 0.00 0.00 -56,268.11

1.002014 0.00 0.00 0.00 43.72 0.00 -43.72 0.00 0.00 -56,296.06

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 70,522.52 0.00 -70,522.52 0.00

0.00 0.00

0.00

0.00

-56,296.06

0.00 0.00

0.00 0.00

0.00

0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

0.00

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

12/31/2014

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

-62,918.26-56,296.06-50,514.21

20.00% :50.00% :

-45,453.01-25,498.32

PW -18,190.4270.00% :

0.00

0.00 0.00

0.00

Hud Eco Detailed.rpt 20

Page 119: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN A&B- PUD CAPITAL12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002012

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002013

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 35,430.46 0.00 0.00 -35,430.46 0.00 0.00 -33,320.24

1.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -33,320.24

1.002012 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -33,320.24

1.002013 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -33,320.24

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 35,430.46 0.00 0.00 -35,430.46 0.00

0.00 0.00

0.00

0.00

-33,320.24

0.00 0.00

0.00 0.00

0.00

0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

0.00

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

12/31/2013

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

-34,356.71-33,320.24-32,319.59

20.00% :50.00% :

-31,353.37-26,208.41

PW -23,318.3070.00% :

33,320.24

0.00 0.00

0.00

Hud Eco Detailed.rpt 21

Page 120: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

BUA BAN FieldProbable Rsv Class

03/30/2010 11:12:02AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

72.59 0.00 464.26 0.00 411.24 0.00 29,851.80 0.00 0.002010

76.59 0.00 3,864.55 0.00 3,328.94 0.00 254,963.82 0.00 0.002011

79.59 0.00 3,335.73 0.00 2,910.46 0.00 231,643.41 0.00 0.002012

82.59 0.00 2,696.74 0.00 2,388.85 0.00 197,294.71 0.00 0.002013

85.59 0.00 2,186.78 0.00 2,009.70 0.00 172,010.53 0.00 0.002014

87.43 0.00 1,743.36 0.00 1,620.77 0.00 141,703.92 0.00 0.002015

89.31 0.00 325.35 0.00 309.08 0.00 27,604.28 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

5.002010 0.00 0.00 8,613.50 0.00 0.00 21,238.30 0.00 0.00 19,359.08

10.002011 0.00 0.00 43,355.99 0.00 0.00 211,607.82 0.00 0.00 201,914.93

10.002012 0.00 0.00 0.00 0.00 0.00 231,643.41 0.00 0.00 382,883.19

10.002013 0.00 0.00 0.00 0.00 0.00 197,294.71 0.00 0.00 522,397.53

10.002014 0.00 0.00 0.00 21,502.39 0.00 150,508.13 0.00 0.00 618,768.66

10.002015 0.00 0.00 0.00 21,977.04 0.00 119,726.89 0.00 0.00 688,234.00

8.002016 0.00 0.00 0.00 18,538.65 0.00 9,065.63 0.00 0.00 693,469.32

1.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 693,469.32

1.002018 0.00 0.00 8,992.48 0.00 0.00 -8,992.48 0.00 0.00 689,610.53

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 60,961.98 62,018.07 0.00 932,092.43 0.00

0.00 0.00

0.00

0.00

689,610.53

0.00 0.00

81.29 0.00

0.00

14,616.77 0.00

0.00 0.00 0.00 0.00 0.00 0.00

14,616.77 0.00 12,979.04 0.00 1,055,072.48 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

15.11 / 16.29

1.15

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

799,784.78 689,610.53 597,480.88

20.00% :50.00% :

520,102.61 247,627.55

PW 162,278.7970.00% :

48,886.46

784.26

Hud Eco Detailed.rpt 22

Page 121: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

BUA BAN FieldProbable Rsv Class

Undeveloped Rsv Category

03/30/2010 11:12:02AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

72.59 0.00 464.26 0.00 411.24 0.00 29,851.80 0.00 0.002010

76.59 0.00 3,864.55 0.00 3,328.94 0.00 254,963.82 0.00 0.002011

79.59 0.00 3,335.73 0.00 2,910.46 0.00 231,643.41 0.00 0.002012

82.59 0.00 2,696.74 0.00 2,388.85 0.00 197,294.71 0.00 0.002013

85.59 0.00 2,186.78 0.00 2,009.70 0.00 172,010.53 0.00 0.002014

87.43 0.00 1,743.36 0.00 1,620.77 0.00 141,703.92 0.00 0.002015

89.31 0.00 325.35 0.00 309.08 0.00 27,604.28 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

5.002010 0.00 0.00 8,613.50 0.00 0.00 21,238.30 0.00 0.00 19,359.08

10.002011 0.00 0.00 43,355.99 0.00 0.00 211,607.82 0.00 0.00 201,914.93

10.002012 0.00 0.00 0.00 0.00 0.00 231,643.41 0.00 0.00 382,883.19

10.002013 0.00 0.00 0.00 0.00 0.00 197,294.71 0.00 0.00 522,397.53

10.002014 0.00 0.00 0.00 21,502.39 0.00 150,508.13 0.00 0.00 618,768.66

10.002015 0.00 0.00 0.00 21,977.04 0.00 119,726.89 0.00 0.00 688,234.00

8.002016 0.00 0.00 0.00 18,538.65 0.00 9,065.63 0.00 0.00 693,469.32

1.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 693,469.32

1.002018 0.00 0.00 8,992.48 0.00 0.00 -8,992.48 0.00 0.00 689,610.53

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 60,961.98 62,018.07 0.00 932,092.43 0.00

0.00 0.00

0.00

0.00

689,610.53

0.00 0.00

81.29 0.00

0.00

14,616.77 0.00

0.00 0.00 0.00 0.00 0.00 0.00

14,616.77 0.00 12,979.04 0.00 1,055,072.48 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

15.11 / 16.29

1.15

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

799,784.78 689,610.53 597,480.88

20.00% :50.00% :

520,102.61 247,627.55

PW 162,278.7970.00% :

48,886.46

784.26

Hud Eco Detailed.rpt 23

Page 122: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Probable Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN A - PROB INCR 1,212/31/2009

72.59 0.00 175.64 0.00 155.59 0.00 11,293.98 0.00 0.002010

76.59 0.00 361.65 0.00 311.53 0.00 23,860.21 0.00 0.002011

79.59 0.00 293.99 0.00 256.52 0.00 20,416.03 0.00 0.002012

82.59 0.00 237.67 0.00 210.53 0.00 17,388.08 0.00 0.002013

85.59 0.00 192.73 0.00 177.12 0.00 15,159.73 0.00 0.002014

87.43 0.00 130.39 0.00 121.22 0.00 10,598.45 0.00 0.002015

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 1,006.53 0.00 0.00 10,287.45 0.00 0.00 9,468.43

1.002011 0.00 0.00 0.00 0.00 0.00 23,860.21 0.00 0.00 30,062.20

1.002012 0.00 0.00 0.00 0.00 0.00 20,416.03 0.00 0.00 46,011.95

1.002013 0.00 0.00 0.00 0.00 0.00 17,388.08 0.00 0.00 58,307.70

1.002014 0.00 0.00 0.00 0.00 0.00 15,159.73 0.00 0.00 68,012.24

1.002015 0.00 0.00 0.00 0.00 0.00 10,598.45 0.00 0.00 74,205.38

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 1,006.53 0.00 0.00 97,709.95 0.00

0.00 0.00

0.00

0.00

74,205.38

0.00 0.00

80.09 0.00

0.00

1,392.07 0.00

0.00 0.00 0.00 0.00 0.00 0.00

1,392.07 0.00 1,232.51 0.00 98,716.48 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

18.92

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.88579900

10/25/2015

77.20 / 98.08

0.62

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

84,902.88 74,205.38 65,219.83

20.00% :50.00% :

57,630.06 30,247.51

PW 21,195.9770.00% :

974.13

36,500.00 12,166.67

776.82

Hud Eco Detailed.rpt 24

Page 123: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Probable Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN A - PROB INCR 3,4,5,612/31/2009

72.59 0.00 214.92 0.00 190.38 0.00 13,819.47 0.00 0.002010

76.59 0.00 749.10 0.00 645.28 0.00 49,421.78 0.00 0.002011

79.59 0.00 608.94 0.00 531.32 0.00 42,287.82 0.00 0.002012

82.59 0.00 492.29 0.00 436.08 0.00 36,016.02 0.00 0.002013

85.59 0.00 399.19 0.00 366.87 0.00 31,400.41 0.00 0.002014

87.43 0.00 319.71 0.00 297.23 0.00 25,986.71 0.00 0.002015

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 2,019.74 0.00 0.00 11,799.73 0.00 0.00 10,746.19

1.002011 0.00 0.00 0.00 0.00 0.00 49,421.78 0.00 0.00 53,402.17

1.002012 0.00 0.00 0.00 0.00 0.00 42,287.82 0.00 0.00 86,438.96

1.002013 0.00 0.00 0.00 0.00 0.00 36,016.02 0.00 0.00 111,907.21

1.002014 0.00 0.00 0.00 0.00 0.00 31,400.41 0.00 0.00 132,008.27

1.002015 0.00 0.00 0.00 0.00 0.00 25,986.71 0.00 0.00 147,077.46

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 2,019.74 0.00 0.00 196,912.48 0.00

0.00 0.00

0.00

0.00

147,077.46

0.00 0.00

80.63 0.00

0.00

2,784.15 0.00

0.00 0.00 0.00 0.00 0.00 0.00

2,784.15 0.00 2,467.16 0.00 198,932.21 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

18.92

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.88579900

12/25/2015

77.53 / 98.49

0.78

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

169,683.65 147,077.46 128,201.72

20.00% :50.00% :

112,351.14 56,150.33

PW 38,106.5070.00% :

1,922.48

73,000.00 24,333.33

776.79

Hud Eco Detailed.rpt 25

Page 124: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Probable Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN B - PROB INCR 7,8,9,1012/31/2009

72.59 0.00 73.69 0.00 65.28 0.00 4,738.35 0.00 0.002010

76.59 0.00 775.80 0.00 668.28 0.00 51,183.78 0.00 0.002011

79.59 0.00 630.65 0.00 550.26 0.00 43,795.49 0.00 0.002012

82.59 0.00 509.84 0.00 451.63 0.00 37,300.08 0.00 0.002013

85.59 0.00 413.43 0.00 379.95 0.00 32,519.92 0.00 0.002014

87.43 0.00 335.25 0.00 311.67 0.00 27,249.45 0.00 0.002015

89.31 0.00 45.49 0.00 43.22 0.00 3,859.92 0.00 0.002016

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 2,026.54 0.00 0.00 2,711.81 0.00 0.00 2,410.46

1.002011 0.00 0.00 0.00 0.00 0.00 51,183.78 0.00 0.00 46,587.23

1.002012 0.00 0.00 0.00 0.00 0.00 43,795.49 0.00 0.00 80,801.86

1.002013 0.00 0.00 0.00 0.00 0.00 37,300.08 0.00 0.00 107,178.12

1.002014 0.00 0.00 0.00 0.00 0.00 32,519.92 0.00 0.00 127,995.83

1.002015 0.00 0.00 0.00 0.00 0.00 27,249.45 0.00 0.00 143,787.25

1.002016 0.00 0.00 0.00 0.00 0.00 3,859.92 0.00 0.00 145,894.84

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 2,026.54 0.00 0.00 198,620.44 0.00

0.00 0.00

0.00

0.00

145,894.84

0.00 0.00

81.22 0.00

0.00

2,784.15 0.00

0.00 0.00 0.00 0.00 0.00 0.00

2,784.15 0.00 2,470.29 0.00 200,646.99 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

18.92

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.88579900

02/24/2016

77.94 / 99.01

0.95

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

169,728.37 145,894.84 126,119.59

20.00% :50.00% :

109,616.66 52,172.07

PW 34,296.4370.00% :

1,896.63

73,000.00 24,333.33

785.63

Hud Eco Detailed.rpt 26

Page 125: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Probable Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN B - PROB INCR 11,12,13,1412/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 789.74 0.00 680.29 0.00 52,103.17 0.00 0.002011

79.59 0.00 641.97 0.00 560.15 0.00 44,582.16 0.00 0.002012

82.59 0.00 519.00 0.00 459.74 0.00 37,970.08 0.00 0.002013

85.59 0.00 420.85 0.00 386.77 0.00 33,104.05 0.00 0.002014

87.43 0.00 341.27 0.00 317.27 0.00 27,738.92 0.00 0.002015

89.31 0.00 71.32 0.00 67.75 0.00 6,050.78 0.00 0.002016

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

0.002010 0.00 0.00 2,033.26 0.00 0.00 -2,033.26 0.00 0.00 -1,871.53

1.002011 0.00 0.00 0.00 0.00 0.00 52,103.17 0.00 0.00 43,098.77

1.002012 0.00 0.00 0.00 0.00 0.00 44,582.16 0.00 0.00 77,927.97

1.002013 0.00 0.00 0.00 0.00 0.00 37,970.08 0.00 0.00 104,778.00

1.002014 0.00 0.00 0.00 0.00 0.00 33,104.05 0.00 0.00 125,969.65

1.002015 0.00 0.00 0.00 0.00 0.00 27,738.92 0.00 0.00 142,044.73

1.002016 0.00 0.00 0.00 0.00 0.00 6,050.78 0.00 0.00 145,334.85

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 2,033.26 0.00 0.00 199,515.89 0.00

0.00 0.00

0.00

0.00

145,334.85

0.00 0.00

81.53 0.00

0.00

2,784.15 0.00

0.00 0.00 0.00 0.00 0.00 0.00

2,784.15 0.00 2,471.97 0.00 201,549.15 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

18.92

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.88579900

03/26/2016

78.68 / 99.13

1.03

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

169,781.23 145,334.85 125,118.19

20.00% :50.00% :

108,301.95 50,331.46

PW 32,588.3770.00% :

1,871.53

73,000.00 24,333.33

>1000

Hud Eco Detailed.rpt 27

Page 126: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Probable Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN A - PROB INCR 15,16,1712/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 546.68 0.00 470.92 0.00 36,067.46 0.00 0.002011

79.59 0.00 490.13 0.00 427.66 0.00 34,037.22 0.00 0.002012

82.59 0.00 396.24 0.00 351.00 0.00 28,989.08 0.00 0.002013

85.59 0.00 321.31 0.00 295.29 0.00 25,274.01 0.00 0.002014

87.43 0.00 260.55 0.00 242.23 0.00 21,177.88 0.00 0.002015

89.31 0.00 73.20 0.00 69.54 0.00 6,210.75 0.00 0.002016

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

0.002010 0.00 0.00 1,527.43 0.00 0.00 -1,527.43 0.00 0.00 -1,394.48

1.002011 0.00 0.00 0.00 0.00 0.00 36,067.46 0.00 0.00 29,593.47

1.002012 0.00 0.00 0.00 0.00 0.00 34,037.22 0.00 0.00 56,184.58

1.002013 0.00 0.00 0.00 0.00 0.00 28,989.08 0.00 0.00 76,683.83

1.002014 0.00 0.00 0.00 0.00 0.00 25,274.01 0.00 0.00 92,863.05

1.002015 0.00 0.00 0.00 0.00 0.00 21,177.88 0.00 0.00 105,135.92

1.002016 0.00 0.00 0.00 0.00 0.00 6,210.75 0.00 0.00 108,499.13

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 1,527.43 0.00 0.00 150,228.97 0.00

0.00 0.00

0.00

0.00

108,499.13

0.00 0.00

81.74 0.00

0.00

2,088.11 0.00

0.00 0.00 0.00 0.00 0.00 0.00

2,088.11 0.00 1,856.63 0.00 151,756.40 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

18.92

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.88579900

04/26/2016

78.83 / 99.35

1.13

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

127,292.57 108,499.13

93,009.2220.00% :50.00% :

80,167.25 36,329.92

PW 23,138.2670.00% :

1,394.48

54,750.00 18,250.00

>1000

Hud Eco Detailed.rpt 28

Page 127: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Probable Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN B - PROB INCR 18,1912/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 336.51 0.00 289.88 0.00 22,201.59 0.00 0.002011

79.59 0.00 332.05 0.00 289.73 0.00 23,059.31 0.00 0.002012

82.59 0.00 268.44 0.00 237.79 0.00 19,639.33 0.00 0.002013

85.59 0.00 217.68 0.00 200.05 0.00 17,122.47 0.00 0.002014

87.43 0.00 176.51 0.00 164.10 0.00 14,347.45 0.00 0.002015

89.31 0.00 60.87 0.00 57.83 0.00 5,164.90 0.00 0.002016

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

0.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002011 0.00 0.00 1,020.00 0.00 0.00 21,181.59 0.00 0.00 18,073.17

1.002012 0.00 0.00 0.00 0.00 0.00 23,059.31 0.00 0.00 36,087.94

1.002013 0.00 0.00 0.00 0.00 0.00 19,639.33 0.00 0.00 49,975.63

1.002014 0.00 0.00 0.00 0.00 0.00 17,122.47 0.00 0.00 60,936.62

1.002015 0.00 0.00 0.00 0.00 0.00 14,347.45 0.00 0.00 69,251.17

1.002016 0.00 0.00 0.00 0.00 0.00 5,164.90 0.00 0.00 72,037.79

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 1,020.00 0.00 0.00 100,515.05 0.00

0.00 0.00

0.00

0.00

72,037.79

0.00 0.00

81.92 0.00

0.00

1,392.07 0.00

0.00 0.00 0.00 0.00 0.00 0.00

1,392.07 0.00 1,239.38 0.00 101,535.05 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

18.92

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.88579900

05/24/2016

79.04 / 99.54

1.20

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

84,841.05 72,037.79 61,517.24

20.00% :50.00% :

52,821.45 23,402.44

PW 14,686.3570.00% :

923.38

36,500.00 12,166.67

>1000

Hud Eco Detailed.rpt 29

Page 128: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Probable Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN B - PROB 20,2112/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 305.05 0.00 262.77 0.00 20,125.82 0.00 0.002011

79.59 0.00 338.01 0.00 294.83 0.00 23,465.39 0.00 0.002012

82.59 0.00 273.26 0.00 242.06 0.00 19,992.03 0.00 0.002013

85.59 0.00 221.59 0.00 203.64 0.00 17,429.94 0.00 0.002014

87.43 0.00 179.68 0.00 167.05 0.00 14,605.07 0.00 0.002015

89.31 0.00 74.46 0.00 70.74 0.00 6,317.93 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

0.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

2.002011 0.00 0.00 8,173.74 0.00 0.00 11,952.09 0.00 0.00 9,805.76

2.002012 0.00 0.00 0.00 0.00 0.00 23,465.39 0.00 0.00 28,137.78

2.002013 0.00 0.00 0.00 0.00 0.00 19,992.03 0.00 0.00 42,274.88

2.002014 0.00 0.00 0.00 0.00 0.00 17,429.94 0.00 0.00 53,432.71

2.002015 0.00 0.00 0.00 0.00 0.00 14,605.07 0.00 0.00 61,896.54

2.002016 0.00 0.00 0.00 0.00 0.00 6,317.93 0.00 0.00 65,291.41

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 65,291.41

0.002018 0.00 0.00 473.29 0.00 0.00 -473.29 0.00 0.00 65,088.32

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 8,647.02 0.00 0.00 93,289.17 0.00

0.00 0.00

0.00

0.00

65,088.32

0.00 0.00

82.13 0.00

0.00

1,392.06 0.00

0.00 0.00 0.00 0.00 0.00 0.00

1,392.06 0.00 1,241.10 0.00 101,936.19 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

18.92

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.88579900

06/24/2016

9.63 / 11.79

1.56

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

77,730.96 65,088.32 54,761.83

20.00% :50.00% :

46,283.75 18,317.20

PW 10,487.0670.00% :

7,540.29

36,500.00 12,166.67

249.80

Hud Eco Detailed.rpt 30

Page 129: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Probable Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN A&B- PROB LOE12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002012

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002012 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002013 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002014 0.00 0.00 0.00 21,502.39 0.00 -21,502.39 0.00 0.00 -13,741.86

1.002015 0.00 0.00 0.00 21,977.04 0.00 -21,977.04 0.00 0.00 -26,456.61

1.002016 0.00 0.00 0.00 18,538.65 0.00 -18,538.65 0.00 0.00 -36,163.70

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 62,018.07 0.00 -62,018.07 0.00

0.00 0.00

0.00

0.00

-36,163.70

0.00 0.00

0.00 0.00

0.00

0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

0.00

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

12/31/2016

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

-47,289.30-36,163.70-27,735.10

20.00% :50.00% :

-21,331.13-4,671.73

PW -1,784.2170.00% :

0.00

0.00 0.00

0.00

Hud Eco Detailed.rpt 31

Page 130: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Probable Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN A&B- PROB CAPITAL12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002012

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002011 0.00 0.00 34,162.26 0.00 0.00 -34,162.26 0.00 0.00 -28,707.84

1.002012 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -28,707.84

1.002013 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -28,707.84

1.002014 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -28,707.84

1.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -28,707.84

1.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -28,707.84

1.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -28,707.84

1.002018 0.00 0.00 8,519.20 0.00 0.00 -8,519.20 0.00 0.00 -32,363.54

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 42,681.45 0.00 0.00 -42,681.45 0.00

0.00 0.00

0.00

0.00

-32,363.54

0.00 0.00

0.00 0.00

0.00

0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

0.00

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

06/30/2018

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

-36,886.63-32,363.54-28,731.64

20.00% :50.00% :

-25,738.53-14,651.66

PW -10,435.9470.00% :

32,363.54

0.00 0.00

0.00

Hud Eco Detailed.rpt 32

Page 131: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

BUA BAN FieldPossible Rsv Class

03/30/2010 11:12:02AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

79.59 0.00 1,276.58 0.00 1,085.09 0.00 86,362.59 0.00 0.002012

82.59 0.00 1,196.41 0.00 1,034.98 0.00 85,479.14 0.00 0.002013

85.59 0.00 1,124.44 0.00 991.88 0.00 84,894.59 0.00 0.002014

87.43 0.00 1,056.81 0.00 942.09 0.00 82,367.21 0.00 0.002015

89.31 0.00 995.88 0.00 923.87 0.00 82,511.03 0.00 0.002016

91.23 0.00 349.88 0.00 331.50 0.00 30,242.94 0.00 0.002017

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

2.002012 0.00 0.00 0.00 0.00 0.00 86,362.59 0.00 0.00 67,387.38

2.002013 0.00 0.00 0.00 0.00 0.00 85,479.14 0.00 0.00 127,759.54

2.002014 0.00 0.00 0.00 0.00 0.00 84,894.59 0.00 0.00 182,039.14

2.002015 0.00 0.00 0.00 0.00 0.00 82,367.21 0.00 0.00 229,714.19

2.002016 0.00 0.00 0.00 3,878.34 0.00 78,632.70 0.00 0.00 270,911.63

2.002017 0.00 0.00 0.00 20,301.16 0.00 9,941.79 0.00 0.00 276,077.24

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 24,179.49 0.00 427,678.00 0.00

0.00 0.00

0.00

0.00

276,077.24

0.00 0.00

85.10 0.00

0.00

6,000.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

6,000.00 0.00 5,309.42 0.00 451,857.49 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

342,570.29 276,077.24 223,826.89

20.00% :50.00% :

182,529.78 60,053.83

PW 31,322.2870.00% :

0.00

0.00

Hud Eco Detailed.rpt 33

Page 132: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

BUA BAN FieldPossible Rsv Class

Undeveloped Rsv Category

03/30/2010 11:12:02AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

79.59 0.00 1,276.58 0.00 1,085.09 0.00 86,362.59 0.00 0.002012

82.59 0.00 1,196.41 0.00 1,034.98 0.00 85,479.14 0.00 0.002013

85.59 0.00 1,124.44 0.00 991.88 0.00 84,894.59 0.00 0.002014

87.43 0.00 1,056.81 0.00 942.09 0.00 82,367.21 0.00 0.002015

89.31 0.00 995.88 0.00 923.87 0.00 82,511.03 0.00 0.002016

91.23 0.00 349.88 0.00 331.50 0.00 30,242.94 0.00 0.002017

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

2.002012 0.00 0.00 0.00 0.00 0.00 86,362.59 0.00 0.00 67,387.38

2.002013 0.00 0.00 0.00 0.00 0.00 85,479.14 0.00 0.00 127,759.54

2.002014 0.00 0.00 0.00 0.00 0.00 84,894.59 0.00 0.00 182,039.14

2.002015 0.00 0.00 0.00 0.00 0.00 82,367.21 0.00 0.00 229,714.19

2.002016 0.00 0.00 0.00 3,878.34 0.00 78,632.70 0.00 0.00 270,911.63

2.002017 0.00 0.00 0.00 20,301.16 0.00 9,941.79 0.00 0.00 276,077.24

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 24,179.49 0.00 427,678.00 0.00

0.00 0.00

0.00

0.00

276,077.24

0.00 0.00

85.10 0.00

0.00

6,000.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

6,000.00 0.00 5,309.42 0.00 451,857.49 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

342,570.29 276,077.24 223,826.89

20.00% :50.00% :

182,529.78 60,053.83

PW 31,322.2870.00% :

0.00

0.00

Hud Eco Detailed.rpt 34

Page 133: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Possible Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN A&B - POSS INCR12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

79.59 0.00 1,276.58 0.00 1,085.09 0.00 86,362.59 0.00 0.002012

82.59 0.00 1,196.41 0.00 1,034.98 0.00 85,479.14 0.00 0.002013

85.59 0.00 1,124.44 0.00 991.88 0.00 84,894.59 0.00 0.002014

87.43 0.00 1,056.81 0.00 942.09 0.00 82,367.21 0.00 0.002015

89.31 0.00 995.88 0.00 923.87 0.00 82,511.03 0.00 0.002016

91.23 0.00 349.88 0.00 331.50 0.00 30,242.94 0.00 0.002017

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

0.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002012 0.00 0.00 0.00 0.00 0.00 86,362.59 0.00 0.00 67,387.38

1.002013 0.00 0.00 0.00 0.00 0.00 85,479.14 0.00 0.00 127,759.54

1.002014 0.00 0.00 0.00 0.00 0.00 84,894.59 0.00 0.00 182,039.14

1.002015 0.00 0.00 0.00 0.00 0.00 82,367.21 0.00 0.00 229,714.19

1.002016 0.00 0.00 0.00 0.00 0.00 82,511.03 0.00 0.00 272,942.37

1.002017 0.00 0.00 0.00 0.00 0.00 30,242.94 0.00 0.00 287,730.79

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 451,857.49 0.00

0.00 0.00

0.00

0.00

287,730.79

0.00 0.00

85.10 0.00

0.00

6,000.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

6,000.00 0.00 5,309.42 0.00 451,857.49 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

6.02

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

05/14/2017

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

359,339.18 287,730.79 231,942.20

20.00% :50.00% :

188,192.73 60,736.10

PW 31,495.4970.00% :

0.00

109,500.00 78,460.32

0.00

Hud Eco Detailed.rpt 35

Page 134: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Possible Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN A&B- POSS LOE12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002012

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002012 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002013 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002014 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002016 0.00 0.00 0.00 3,878.34 0.00 -3,878.34 0.00 0.00 -2,030.75

1.002017 0.00 0.00 0.00 20,301.16 0.00 -20,301.16 0.00 0.00 -11,653.55

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 24,179.49 0.00 -24,179.49 0.00

0.00 0.00

0.00

0.00

-11,653.55

0.00 0.00

0.00 0.00

0.00

0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

0.00

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

12/31/2017

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

-16,768.89-11,653.55

-8,115.3120.00% :50.00% :

-5,662.94-682.27

PW -173.2170.00% :

0.00

0.00 0.00

0.00

Hud Eco Detailed.rpt 36

Page 135: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA EOCENE Field

03/30/2010 11:12:02AMDate :

15.87

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

36.33

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

72.59 0.00 58.98 0.00 54.48 0.00 3,954.95 0.00 0.002010

76.59 0.00 550.37 0.00 475.73 0.00 36,436.37 0.00 0.002011

79.59 0.00 1,731.32 0.00 1,481.23 0.00 117,890.78 0.00 0.002012

82.59 0.00 1,098.33 0.00 956.24 0.00 78,975.78 0.00 0.002013

85.59 0.00 627.83 0.00 554.81 0.00 47,486.40 0.00 0.002014

87.43 0.00 488.92 0.00 436.54 0.00 38,167.08 0.00 0.002015

89.31 0.00 399.45 0.00 370.78 0.00 33,114.59 0.00 0.002016

91.23 0.00 332.47 0.00 315.02 0.00 28,739.26 0.00 0.002017

93.18 0.00 281.99 0.00 267.89 0.00 24,961.62 0.00 0.002018

95.17 0.00 61.00 0.00 57.95 0.00 5,514.86 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

4.002010 0.00 0.00 18,208.23 1,207.22 0.00 -15,460.50 0.00 0.00 -14,549.84

5.002011 0.00 0.00 0.00 1,231.37 0.00 35,205.00 0.00 0.00 15,903.16

6.002012 0.00 0.00 0.00 1,256.02 0.00 116,634.76 0.00 0.00 107,257.19

6.002013 0.00 0.00 0.00 1,281.12 0.00 77,694.67 0.00 0.00 162,330.06

4.002014 0.00 0.00 0.00 1,306.74 0.00 46,179.67 0.00 0.00 191,910.70

4.002015 0.00 0.00 0.00 1,332.87 0.00 36,834.21 0.00 0.00 213,260.43

4.002016 0.00 0.00 0.00 1,359.55 0.00 31,755.04 0.00 0.00 229,915.45

4.002017 0.00 0.00 0.00 15,048.97 0.00 13,690.29 0.00 0.00 236,425.27

2.002018 0.00 0.00 0.00 17,284.59 0.00 7,677.03 0.00 0.00 239,731.19

2.002019 0.00 0.00 0.00 3,693.22 0.00 1,821.64 0.00 0.00 240,521.01

0.002020 0.00 0.00 1,477.27 0.00 0.00 -1,477.27 0.00 0.00 240,001.65

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 19,685.50 45,001.66 0.00 350,554.54 0.00

0.00 0.00

0.00

0.00

240,001.65

0.00 0.00

83.54 0.00

0.00

5,666.99 15.87

0.00 0.00 0.00 0.00 0.00 0.00

5,630.66 0.00 4,970.67 0.00 415,241.69 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

14.56 / 18.81

1.42

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

289,039.64 240,001.65 200,571.18

20.00% :50.00% :

168,602.68 65,264.30

PW 36,612.1770.00% :

17,704.96

188.45

Hud Eco Detailed.rpt 37

Page 136: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA EOCENE FieldProved Rsv Class

03/30/2010 11:12:02AMDate :

15.87

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

36.33

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

72.59 0.00 58.98 0.00 54.48 0.00 3,954.95 0.00 0.002010

76.59 0.00 34.65 0.00 31.48 0.00 2,411.40 0.00 0.002011

79.59 0.00 24.35 0.00 22.45 0.00 1,786.73 0.00 0.002012

82.59 0.00 18.62 0.00 17.43 0.00 1,439.25 0.00 0.002013

85.59 0.00 14.80 0.00 14.06 0.00 1,203.18 0.00 0.002014

87.43 0.00 11.84 0.00 11.25 0.00 983.38 0.00 0.002015

89.31 0.00 9.50 0.00 9.02 0.00 805.71 0.00 0.002016

91.23 0.00 5.18 0.00 4.92 0.00 449.30 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

2.002010 0.00 0.00 0.00 1,207.22 0.00 2,747.73 0.00 0.00 2,635.76

2.002011 0.00 0.00 0.00 1,231.37 0.00 1,180.03 0.00 0.00 3,659.51

2.002012 0.00 0.00 0.00 1,245.11 0.00 541.61 0.00 0.00 4,085.43

2.002013 0.00 0.00 0.00 985.99 0.00 453.26 0.00 0.00 4,407.26

2.002014 0.00 0.00 0.00 808.94 0.00 394.24 0.00 0.00 4,660.58

2.002015 0.00 0.00 0.00 657.87 0.00 325.52 0.00 0.00 4,849.92

2.002016 0.00 0.00 0.00 534.55 0.00 271.16 0.00 0.00 4,992.70

2.002017 0.00 0.00 0.00 301.62 0.00 147.68 0.00 0.00 5,066.45

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5,066.45

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5,066.45

0.002020 0.00 0.00 246.21 0.00 0.00 -246.21 0.00 0.00 4,979.89

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 246.21 6,972.67 0.00 5,815.02 0.00

0.00 0.00

0.00

0.00

4,979.89

0.00 0.00

78.95 0.00

0.00

214.25 15.87

0.00 0.00 0.00 0.00 0.00 0.00

177.92 0.00 165.10 0.00 13,033.90 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

58.53 / 24.62

0.06

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

5,370.56 4,979.89 4,639.09

20.00% :50.00% :

4,342.35 3,181.91

PW 2,736.6970.00% :

86.56

>1000

Hud Eco Detailed.rpt 38

Page 137: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA EOCENE FieldProved Rsv Class

Producing Rsv Category

03/30/2010 11:12:02AMDate :

15.87

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

36.33

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

72.59 0.00 58.98 0.00 54.48 0.00 3,954.95 0.00 0.002010

76.59 0.00 34.65 0.00 31.48 0.00 2,411.40 0.00 0.002011

79.59 0.00 24.35 0.00 22.45 0.00 1,786.73 0.00 0.002012

82.59 0.00 18.62 0.00 17.43 0.00 1,439.25 0.00 0.002013

85.59 0.00 14.80 0.00 14.06 0.00 1,203.18 0.00 0.002014

87.43 0.00 11.84 0.00 11.25 0.00 983.38 0.00 0.002015

89.31 0.00 9.50 0.00 9.02 0.00 805.71 0.00 0.002016

91.23 0.00 5.18 0.00 4.92 0.00 449.30 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

2.002010 0.00 0.00 0.00 1,207.22 0.00 2,747.73 0.00 0.00 2,635.76

2.002011 0.00 0.00 0.00 1,231.37 0.00 1,180.03 0.00 0.00 3,659.51

2.002012 0.00 0.00 0.00 1,245.11 0.00 541.61 0.00 0.00 4,085.43

2.002013 0.00 0.00 0.00 985.99 0.00 453.26 0.00 0.00 4,407.26

2.002014 0.00 0.00 0.00 808.94 0.00 394.24 0.00 0.00 4,660.58

2.002015 0.00 0.00 0.00 657.87 0.00 325.52 0.00 0.00 4,849.92

2.002016 0.00 0.00 0.00 534.55 0.00 271.16 0.00 0.00 4,992.70

2.002017 0.00 0.00 0.00 301.62 0.00 147.68 0.00 0.00 5,066.45

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5,066.45

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5,066.45

0.002020 0.00 0.00 246.21 0.00 0.00 -246.21 0.00 0.00 4,979.89

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 246.21 6,972.67 0.00 5,815.02 0.00

0.00 0.00

0.00

0.00

4,979.89

0.00 0.00

78.95 0.00

0.00

214.25 15.87

0.00 0.00 0.00 0.00 0.00 0.00

177.92 0.00 165.10 0.00 13,033.90 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

58.53 / 24.62

0.06

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

5,370.56 4,979.89 4,639.09

20.00% :50.00% :

4,342.35 3,181.91

PW 2,736.6970.00% :

86.56

>1000

Hud Eco Detailed.rpt 39

Page 138: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Producing

SONGKHLA EOCENE

COASTAL ENERGYEOCENE

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

36.33

15.87

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA EOCENE A-712/31/2009

72.59 0.00 58.98 0.00 54.48 0.00 3,954.95 0.00 0.002010

76.59 0.00 34.65 0.00 31.48 0.00 2,411.40 0.00 0.002011

79.59 0.00 24.35 0.00 22.45 0.00 1,786.73 0.00 0.002012

82.59 0.00 18.62 0.00 17.43 0.00 1,439.25 0.00 0.002013

85.59 0.00 14.80 0.00 14.06 0.00 1,203.18 0.00 0.002014

87.43 0.00 11.84 0.00 11.25 0.00 983.38 0.00 0.002015

89.31 0.00 9.50 0.00 9.02 0.00 805.71 0.00 0.002016

91.23 0.00 5.18 0.00 4.92 0.00 449.30 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 3,954.95 0.00 0.00 3,784.82

1.002011 0.00 0.00 0.00 0.00 0.00 2,411.40 0.00 0.00 5,869.60

1.002012 0.00 0.00 0.00 0.00 0.00 1,786.73 0.00 0.00 7,266.51

1.002013 0.00 0.00 0.00 0.00 0.00 1,439.25 0.00 0.00 8,284.41

1.002014 0.00 0.00 0.00 0.00 0.00 1,203.18 0.00 0.00 9,054.71

1.002015 0.00 0.00 0.00 0.00 0.00 983.38 0.00 0.00 9,624.66

1.002016 0.00 0.00 0.00 0.00 0.00 805.71 0.00 0.00 10,047.34

1.002017 0.00 0.00 0.00 0.00 0.00 449.30 0.00 0.00 10,264.05

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10,264.05

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10,264.05

0.002020 0.00 0.00 246.21 0.00 0.00 -246.21 0.00 0.00 10,177.49

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 246.21 0.00 0.00 12,787.69 0.00

0.00 0.00

0.00

0.00

10,177.49

0.00 0.00

78.95 0.00

0.00

214.25 15.87

0.00 0.00 0.00 0.00 0.00 0.00

177.92 0.00 165.10 0.00 13,033.90 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

60.02

bbl/monthbbl/month

% year b = 0.900

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.92377000

08/28/2017

118.61 / 52.94

0.05

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

11,358.46 10,177.49

9,196.1220.00% :50.00% :

8,375.05 5,446.73

PW 4,452.2670.00% :

86.56

6,953.17 608.33

>1000

Hud Eco Detailed.rpt 40

Page 139: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Producing

SONGKHLA EOCENE

COASTAL ENERGYEOCENE

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA EOCENE PDP LOE12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002012

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 1,207.22 0.00 -1,207.22 0.00 0.00 -1,149.06

1.002011 0.00 0.00 0.00 1,231.37 0.00 -1,231.37 0.00 0.00 -2,210.09

1.002012 0.00 0.00 0.00 1,245.11 0.00 -1,245.11 0.00 0.00 -3,181.08

1.002013 0.00 0.00 0.00 985.99 0.00 -985.99 0.00 0.00 -3,877.15

1.002014 0.00 0.00 0.00 808.94 0.00 -808.94 0.00 0.00 -4,394.13

1.002015 0.00 0.00 0.00 657.87 0.00 -657.87 0.00 0.00 -4,774.74

1.002016 0.00 0.00 0.00 534.55 0.00 -534.55 0.00 0.00 -5,054.64

1.002017 0.00 0.00 0.00 301.62 0.00 -301.62 0.00 0.00 -5,197.61

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 6,972.67 0.00 -6,972.67 0.00

0.00 0.00

0.00

0.00

-5,197.61

0.00 0.00

0.00 0.00

0.00

0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

0.00

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

12/31/2017

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

-5,987.90-5,197.61-4,557.03

20.00% :50.00% :

-4,032.70-2,264.82

PW -1,715.5770.00% :

0.00

0.00 0.00

0.00

Hud Eco Detailed.rpt 41

Page 140: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA EOCENE FieldProbable Rsv Class

03/30/2010 11:12:02AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 515.72 0.00 444.25 0.00 34,024.97 0.00 0.002011

79.59 0.00 348.37 0.00 303.97 0.00 24,192.91 0.00 0.002012

82.59 0.00 230.87 0.00 204.51 0.00 16,890.75 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 12,138.82 0.00 0.00 -12,138.82 0.00 0.00 -11,457.06

2.002011 0.00 0.00 0.00 0.00 0.00 34,024.97 0.00 0.00 17,972.18

2.002012 0.00 0.00 0.00 10.91 0.00 24,182.00 0.00 0.00 36,882.57

2.002013 0.00 0.00 0.00 295.13 0.00 16,595.62 0.00 0.00 48,690.48

0.002014 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,690.48

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,690.48

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,690.48

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,690.48

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,690.48

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,690.48

0.002020 0.00 0.00 738.63 0.00 0.00 -738.63 0.00 0.00 48,430.80

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 12,877.45 306.03 0.00 61,925.14 0.00

0.00 0.00

0.00

0.00

48,430.80

0.00 0.00

78.84 0.00

0.00

1,094.97 0.00

0.00 0.00 0.00 0.00 0.00 0.00

1,094.97 0.00 952.73 0.00 75,108.63 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

5.13 / 5.81

1.33

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

54,775.26 48,430.80 42,816.44

20.00% :50.00% :

37,854.34 18,056.30

PW 10,873.3570.00% :

11,716.75

156.06

Hud Eco Detailed.rpt 42

Page 141: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA EOCENE FieldProbable Rsv Class

Undeveloped Rsv Category

03/30/2010 11:12:02AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 515.72 0.00 444.25 0.00 34,024.97 0.00 0.002011

79.59 0.00 348.37 0.00 303.97 0.00 24,192.91 0.00 0.002012

82.59 0.00 230.87 0.00 204.51 0.00 16,890.75 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 12,138.82 0.00 0.00 -12,138.82 0.00 0.00 -11,457.06

2.002011 0.00 0.00 0.00 0.00 0.00 34,024.97 0.00 0.00 17,972.18

2.002012 0.00 0.00 0.00 10.91 0.00 24,182.00 0.00 0.00 36,882.57

2.002013 0.00 0.00 0.00 295.13 0.00 16,595.62 0.00 0.00 48,690.48

0.002014 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,690.48

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,690.48

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,690.48

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,690.48

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,690.48

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,690.48

0.002020 0.00 0.00 738.63 0.00 0.00 -738.63 0.00 0.00 48,430.80

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 12,877.45 306.03 0.00 61,925.14 0.00

0.00 0.00

0.00

0.00

48,430.80

0.00 0.00

78.84 0.00

0.00

1,094.97 0.00

0.00 0.00 0.00 0.00 0.00 0.00

1,094.97 0.00 952.73 0.00 75,108.63 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

5.13 / 5.81

1.33

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

54,775.26 48,430.80 42,816.44

20.00% :50.00% :

37,854.34 18,056.30

PW 10,873.3570.00% :

11,716.75

156.06

Hud Eco Detailed.rpt 43

Page 142: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Probable Undeveloped

SONGKHLA EOCENE

COASTAL ENERGYEOCENE

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA EOCENE PROB12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 515.72 0.00 444.25 0.00 34,024.97 0.00 0.002011

79.59 0.00 348.37 0.00 303.97 0.00 24,192.91 0.00 0.002012

82.59 0.00 230.87 0.00 204.51 0.00 16,890.75 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

0.002010 0.00 0.00 12,138.82 0.00 0.00 -12,138.82 0.00 0.00 -11,457.06

1.002011 0.00 0.00 0.00 0.00 0.00 34,024.97 0.00 0.00 17,972.18

1.002012 0.00 0.00 0.00 0.00 0.00 24,192.91 0.00 0.00 36,891.08

1.002013 0.00 0.00 0.00 0.00 0.00 16,890.75 0.00 0.00 48,907.34

0.002014 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,907.34

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,907.34

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,907.34

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,907.34

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,907.34

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,907.34

0.002020 0.00 0.00 738.63 0.00 0.00 -738.63 0.00 0.00 48,647.65

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 12,877.45 0.00 0.00 62,231.17 0.00

0.00 0.00

0.00

0.00

48,647.65

0.00 0.00

78.84 0.00

0.00

1,094.97 0.00

0.00 0.00 0.00 0.00 0.00 0.00

1,094.97 0.00 952.73 0.00 75,108.63 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

44.17

bbl/monthbbl/month

% year b = 0.900

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.88579900

11/15/2013

5.15 / 5.83

1.33

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

55,032.74 48,647.65 42,999.26

20.00% :50.00% :

38,008.62 18,113.19

PW 10,903.1870.00% :

11,716.75

54,750.00 19,708.34

156.11

Hud Eco Detailed.rpt 44

Page 143: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Probable Undeveloped

SONGKHLA EOCENE

COASTAL ENERGYEOCENE

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA EOCENE PROB LOE12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002012

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002013

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002012 0.00 0.00 0.00 10.91 0.00 -10.91 0.00 0.00 -8.51

1.002013 0.00 0.00 0.00 295.13 0.00 -295.13 0.00 0.00 -216.85

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 306.03 0.00 -306.03 0.00

0.00 0.00

0.00

0.00

-216.85

0.00 0.00

0.00 0.00

0.00

0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

0.00

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

12/31/2013

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

-257.48-216.85-182.82

20.00% :50.00% :

-154.28-56.89

PW -29.8270.00% :

0.00

0.00 0.00

0.00

Hud Eco Detailed.rpt 45

Page 144: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA EOCENE FieldPossible Rsv Class

03/30/2010 11:12:02AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

79.59 0.00 1,358.60 0.00 1,154.81 0.00 91,911.14 0.00 0.002012

82.59 0.00 848.83 0.00 734.30 0.00 60,645.78 0.00 0.002013

85.59 0.00 613.03 0.00 540.76 0.00 46,283.23 0.00 0.002014

87.43 0.00 477.08 0.00 425.30 0.00 37,183.70 0.00 0.002015

89.31 0.00 389.96 0.00 361.76 0.00 32,308.88 0.00 0.002016

91.23 0.00 327.29 0.00 310.09 0.00 28,289.96 0.00 0.002017

93.18 0.00 281.99 0.00 267.89 0.00 24,961.62 0.00 0.002018

95.17 0.00 61.00 0.00 57.95 0.00 5,514.86 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 6,069.41 0.00 0.00 -6,069.41 0.00 0.00 -5,728.53

1.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -5,728.53

2.002012 0.00 0.00 0.00 0.00 0.00 91,911.14 0.00 0.00 66,289.20

2.002013 0.00 0.00 0.00 0.00 0.00 60,645.78 0.00 0.00 109,232.31

2.002014 0.00 0.00 0.00 497.80 0.00 45,785.43 0.00 0.00 138,559.63

2.002015 0.00 0.00 0.00 675.01 0.00 36,508.69 0.00 0.00 159,720.03

2.002016 0.00 0.00 0.00 825.00 0.00 31,483.88 0.00 0.00 176,232.26

2.002017 0.00 0.00 0.00 14,747.34 0.00 13,542.62 0.00 0.00 182,668.34

2.002018 0.00 0.00 0.00 17,284.59 0.00 7,677.03 0.00 0.00 185,974.26

2.002019 0.00 0.00 0.00 3,693.22 0.00 1,821.64 0.00 0.00 186,764.08

0.002020 0.00 0.00 492.42 0.00 0.00 -492.42 0.00 0.00 186,590.96

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 6,561.83 37,722.95 0.00 282,814.38 0.00

0.00 0.00

0.00

0.00

186,590.96

0.00 0.00

84.90 0.00

0.00

4,357.76 0.00

0.00 0.00 0.00 0.00 0.00 0.00

4,357.76 0.00 3,852.85 0.00 327,099.16 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

32.62 / 44.10

2.05

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

228,893.81 186,590.96 153,115.65

20.00% :50.00% :

126,405.99 44,026.08

PW 23,002.1370.00% :

5,901.65

169.25

Hud Eco Detailed.rpt 46

Page 145: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA EOCENE FieldPossible Rsv Class

Undeveloped Rsv Category

03/30/2010 11:12:02AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

79.59 0.00 1,358.60 0.00 1,154.81 0.00 91,911.14 0.00 0.002012

82.59 0.00 848.83 0.00 734.30 0.00 60,645.78 0.00 0.002013

85.59 0.00 613.03 0.00 540.76 0.00 46,283.23 0.00 0.002014

87.43 0.00 477.08 0.00 425.30 0.00 37,183.70 0.00 0.002015

89.31 0.00 389.96 0.00 361.76 0.00 32,308.88 0.00 0.002016

91.23 0.00 327.29 0.00 310.09 0.00 28,289.96 0.00 0.002017

93.18 0.00 281.99 0.00 267.89 0.00 24,961.62 0.00 0.002018

95.17 0.00 61.00 0.00 57.95 0.00 5,514.86 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 6,069.41 0.00 0.00 -6,069.41 0.00 0.00 -5,728.53

1.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -5,728.53

2.002012 0.00 0.00 0.00 0.00 0.00 91,911.14 0.00 0.00 66,289.20

2.002013 0.00 0.00 0.00 0.00 0.00 60,645.78 0.00 0.00 109,232.31

2.002014 0.00 0.00 0.00 497.80 0.00 45,785.43 0.00 0.00 138,559.63

2.002015 0.00 0.00 0.00 675.01 0.00 36,508.69 0.00 0.00 159,720.03

2.002016 0.00 0.00 0.00 825.00 0.00 31,483.88 0.00 0.00 176,232.26

2.002017 0.00 0.00 0.00 14,747.34 0.00 13,542.62 0.00 0.00 182,668.34

2.002018 0.00 0.00 0.00 17,284.59 0.00 7,677.03 0.00 0.00 185,974.26

2.002019 0.00 0.00 0.00 3,693.22 0.00 1,821.64 0.00 0.00 186,764.08

0.002020 0.00 0.00 492.42 0.00 0.00 -492.42 0.00 0.00 186,590.96

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 6,561.83 37,722.95 0.00 282,814.38 0.00

0.00 0.00

0.00

0.00

186,590.96

0.00 0.00

84.90 0.00

0.00

4,357.76 0.00

0.00 0.00 0.00 0.00 0.00 0.00

4,357.76 0.00 3,852.85 0.00 327,099.16 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

32.62 / 44.10

2.05

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

228,893.81 186,590.96 153,115.65

20.00% :50.00% :

126,405.99 44,026.08

PW 23,002.1370.00% :

5,901.65

169.25

Hud Eco Detailed.rpt 47

Page 146: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Possible Undeveloped

SONGKHLA EOCENE

COASTAL ENERGYEOCENE

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA EOCENE POSS12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

79.59 0.00 1,358.60 0.00 1,154.81 0.00 91,911.14 0.00 0.002012

82.59 0.00 848.83 0.00 734.30 0.00 60,645.78 0.00 0.002013

85.59 0.00 613.03 0.00 540.76 0.00 46,283.23 0.00 0.002014

87.43 0.00 477.08 0.00 425.30 0.00 37,183.70 0.00 0.002015

89.31 0.00 389.96 0.00 361.76 0.00 32,308.88 0.00 0.002016

91.23 0.00 327.29 0.00 310.09 0.00 28,289.96 0.00 0.002017

93.18 0.00 281.99 0.00 267.89 0.00 24,961.62 0.00 0.002018

95.17 0.00 61.00 0.00 57.95 0.00 5,514.86 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

0.002010 0.00 0.00 6,069.41 0.00 0.00 -6,069.41 0.00 0.00 -5,728.53

0.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -5,728.53

1.002012 0.00 0.00 0.00 0.00 0.00 91,911.14 0.00 0.00 66,289.20

1.002013 0.00 0.00 0.00 0.00 0.00 60,645.78 0.00 0.00 109,232.31

1.002014 0.00 0.00 0.00 0.00 0.00 46,283.23 0.00 0.00 138,877.77

1.002015 0.00 0.00 0.00 0.00 0.00 37,183.70 0.00 0.00 160,428.69

1.002016 0.00 0.00 0.00 0.00 0.00 32,308.88 0.00 0.00 177,372.90

1.002017 0.00 0.00 0.00 0.00 0.00 28,289.96 0.00 0.00 190,799.25

1.002018 0.00 0.00 0.00 0.00 0.00 24,961.62 0.00 0.00 201,522.03

1.002019 0.00 0.00 0.00 0.00 0.00 5,514.86 0.00 0.00 203,746.50

0.002020 0.00 0.00 492.42 0.00 0.00 -492.42 0.00 0.00 203,573.38

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 6,561.83 0.00 0.00 320,537.33 0.00

0.00 0.00

0.00

0.00

203,573.38

0.00 0.00

84.90 0.00

0.00

4,357.76 0.00

0.00 0.00 0.00 0.00 0.00 0.00

4,357.76 0.00 3,852.85 0.00 327,099.16 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

52.65

bbl/monthbbl/month

% year b = 0.900

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

03/26/2019

35.50 / 49.85

2.05

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

254,156.14 203,573.38 164,576.38

20.00% :50.00% :

134,171.02 44,846.94

PW 23,203.8070.00% :

5,901.65

152,083.33 21,291.67

169.27

Hud Eco Detailed.rpt 48

Page 147: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Possible Undeveloped

SONGKHLA EOCENE

COASTAL ENERGYEOCENE

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA EOCENE POSS LOE12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002012

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002012 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002013 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002014 0.00 0.00 0.00 497.80 0.00 -497.80 0.00 0.00 -318.13

1.002015 0.00 0.00 0.00 675.01 0.00 -675.01 0.00 0.00 -708.66

1.002016 0.00 0.00 0.00 825.00 0.00 -825.00 0.00 0.00 -1,140.64

1.002017 0.00 0.00 0.00 14,747.34 0.00 -14,747.34 0.00 0.00 -8,130.92

1.002018 0.00 0.00 0.00 17,284.59 0.00 -17,284.59 0.00 0.00 -15,547.77

1.002019 0.00 0.00 0.00 3,693.22 0.00 -3,693.22 0.00 0.00 -16,982.42

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 37,722.95 0.00 -37,722.95 0.00

0.00 0.00

0.00

0.00

-16,982.42

0.00 0.00

0.00 0.00

0.00

0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

0.00

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

12/31/2019

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

-25,262.33-16,982.42-11,460.72

20.00% :50.00% :

-7,765.02-820.86

PW -201.6770.00% :

0.00

0.00 0.00

0.00

Hud Eco Detailed.rpt 49

Page 148: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA OLIGOCENE Field

03/30/2010 11:12:02AMDate :

262.92

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

2,022.45

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

72.59 0.00 3,125.92 0.00 2,871.71 0.00 208,457.16 0.00 0.002010

76.59 0.00 2,464.63 0.00 2,190.22 0.00 167,748.79 0.00 0.002011

79.59 0.00 2,079.00 0.00 1,865.26 0.00 148,455.75 0.00 0.002012

82.59 0.00 1,654.68 0.00 1,503.41 0.00 124,166.67 0.00 0.002013

85.59 0.00 1,011.96 0.00 939.77 0.00 80,435.15 0.00 0.002014

87.43 0.00 739.64 0.00 687.65 0.00 60,121.41 0.00 0.002015

89.31 0.00 398.36 0.00 373.29 0.00 33,338.83 0.00 0.002016

91.23 0.00 11.32 0.00 10.73 0.00 978.64 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

10.002010 0.00 0.00 8,029.27 22,937.15 0.00 177,490.74 0.00 0.00 168,715.64

11.002011 0.00 0.00 0.00 23,395.89 0.00 144,352.90 0.00 0.00 293,180.03

11.002012 0.00 0.00 3,152.09 23,864.24 0.00 121,439.42 0.00 0.00 388,118.65

11.002013 0.00 0.00 0.00 24,341.08 0.00 99,825.59 0.00 0.00 458,748.37

10.002014 0.00 0.00 0.00 24,827.90 0.00 55,607.25 0.00 0.00 494,532.26

9.002015 0.00 0.00 0.00 25,324.46 0.00 34,796.95 0.00 0.00 514,731.20

9.002016 0.00 0.00 0.00 22,416.98 0.00 10,921.85 0.00 0.00 520,632.19

2.002017 0.00 0.00 0.00 649.64 0.00 329.00 0.00 0.00 520,810.35

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 520,810.35

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 520,810.35

0.002020 0.00 0.00 4,431.81 0.00 0.00 -4,431.81 0.00 0.00 519,252.26

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 15,613.17 167,757.35 0.00 640,331.90 0.00

0.00 0.00

0.00

0.00

519,252.26

0.00 0.00

78.88 0.00

0.00

13,507.97 262.92

0.00 0.00 0.00 0.00 0.00 0.00

11,485.52 0.00 10,442.04 0.00 823,702.41 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

44.64 / 42.01

0.11

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

575,011.14 519,252.26 471,470.81

20.00% :50.00% :

430,341.90 273,588.75

PW 216,917.5570.00% :

11,899.59

>1000

Hud Eco Detailed.rpt 50

Page 149: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA OLIGOCENE FieldProved Rsv Class

03/30/2010 11:12:02AMDate :

262.92

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

2,022.45

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

72.59 0.00 2,706.50 0.00 2,500.18 0.00 181,488.34 0.00 0.002010

76.59 0.00 1,695.89 0.00 1,540.98 0.00 118,023.68 0.00 0.002011

79.59 0.00 1,211.46 0.00 1,116.68 0.00 88,876.25 0.00 0.002012

82.59 0.00 887.91 0.00 830.87 0.00 68,621.72 0.00 0.002013

85.59 0.00 654.78 0.00 622.04 0.00 53,240.66 0.00 0.002014

87.43 0.00 483.30 0.00 459.14 0.00 40,142.28 0.00 0.002015

89.31 0.00 167.70 0.00 159.32 0.00 14,228.43 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

8.002010 0.00 0.00 5,019.66 22,937.15 0.00 153,531.54 0.00 0.00 146,417.87

8.002011 0.00 0.00 0.00 23,395.89 0.00 94,627.79 0.00 0.00 228,275.95

8.002012 0.00 0.00 0.00 23,864.24 0.00 65,012.01 0.00 0.00 279,157.80

8.002013 0.00 0.00 0.00 24,341.08 0.00 44,280.64 0.00 0.00 310,536.93

7.002014 0.00 0.00 0.00 24,827.90 0.00 28,412.75 0.00 0.00 328,778.34

7.002015 0.00 0.00 0.00 25,324.46 0.00 14,817.82 0.00 0.00 337,407.79

7.002016 0.00 0.00 0.00 9,565.03 0.00 4,663.40 0.00 0.00 340,022.56

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 340,022.56

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 340,022.56

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 340,022.56

0.002020 0.00 0.00 3,693.17 0.00 0.00 -3,693.17 0.00 0.00 338,724.15

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 8,712.83 154,255.75 0.00 401,652.79 0.00

0.00 0.00

0.00

0.00

338,724.15

0.00 0.00

78.10 0.00

0.00

9,830.00 262.92

0.00 0.00 0.00 0.00 0.00 0.00

7,807.55 0.00 7,229.21 0.00 564,621.37 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

55.46 / 47.10

0.06

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

368,011.62 338,724.15 313,175.61

20.00% :50.00% :

290,816.94 201,515.88

PW 166,862.1170.00% :

6,220.17

>1000

Hud Eco Detailed.rpt 51

Page 150: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA OLIGOCENE FieldProved Rsv Class

Producing Rsv Category

03/30/2010 11:12:02AMDate :

236.78

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

1,821.43

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

72.59 0.00 1,739.83 0.00 1,607.21 0.00 116,667.17 0.00 0.002010

76.59 0.00 1,082.44 0.00 983.57 0.00 75,331.54 0.00 0.002011

79.59 0.00 779.74 0.00 718.73 0.00 57,203.88 0.00 0.002012

82.59 0.00 566.32 0.00 529.93 0.00 43,767.30 0.00 0.002013

85.59 0.00 413.54 0.00 392.86 0.00 33,624.83 0.00 0.002014

87.43 0.00 302.33 0.00 287.21 0.00 25,111.18 0.00 0.002015

89.31 0.00 129.24 0.00 122.77 0.00 10,964.89 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

5.002010 0.00 0.00 0.00 22,937.15 0.00 93,730.02 0.00 0.00 89,839.22

5.002011 0.00 0.00 0.00 23,395.89 0.00 51,935.65 0.00 0.00 134,776.28

5.002012 0.00 0.00 0.00 23,864.24 0.00 33,339.64 0.00 0.00 160,896.43

5.002013 0.00 0.00 0.00 24,341.08 0.00 19,426.22 0.00 0.00 174,688.86

4.002014 0.00 0.00 0.00 24,827.90 0.00 8,796.93 0.00 0.00 180,365.12

4.002015 0.00 0.00 0.00 16,903.69 0.00 8,207.49 0.00 0.00 185,150.10

4.002016 0.00 0.00 0.00 7,369.97 0.00 3,594.92 0.00 0.00 187,142.06

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 187,142.06

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 187,142.06

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 187,142.06

0.002020 0.00 0.00 3,200.75 0.00 0.00 -3,200.75 0.00 0.00 186,016.77

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 3,200.75 143,639.92 0.00 215,830.12 0.00

0.00 0.00

0.00

0.00

186,016.77

0.00 0.00

78.12 0.00

0.00

6,834.86 236.78

0.00 0.00 0.00 0.00 0.00 0.00

5,013.44 0.00 4,642.29 0.00 362,670.79 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

166.31 / 68.43

0.02

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

200,013.66 186,016.77 173,648.05

20.00% :50.00% :

162,707.39 117,886.68

PW 99,923.4870.00% :

1,125.29

>1000

Hud Eco Detailed.rpt 52

Page 151: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Producing

SONGKHLA OLIGOCENE

COASTAL ENERGYOLIGOCENE C

Block G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

904.30

117.56

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA - A-112/31/2009

72.59 0.00 457.23 0.00 422.38 0.00 30,660.30 0.00 0.002010

76.59 0.00 341.61 0.00 310.41 0.00 23,773.93 0.00 0.002011

79.59 0.00 255.83 0.00 235.81 0.00 18,768.18 0.00 0.002012

82.59 0.00 190.53 0.00 178.29 0.00 14,725.18 0.00 0.002013

85.59 0.00 142.35 0.00 135.23 0.00 11,574.71 0.00 0.002014

87.43 0.00 106.35 0.00 101.04 0.00 8,833.68 0.00 0.002015

89.31 0.00 63.99 0.00 60.79 0.00 5,429.24 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 30,660.30 0.00 0.00 29,251.59

1.002011 0.00 0.00 0.00 0.00 0.00 23,773.93 0.00 0.00 49,784.67

1.002012 0.00 0.00 0.00 0.00 0.00 18,768.18 0.00 0.00 64,456.95

1.002013 0.00 0.00 0.00 0.00 0.00 14,725.18 0.00 0.00 74,876.66

1.002014 0.00 0.00 0.00 0.00 0.00 11,574.71 0.00 0.00 82,291.22

1.002015 0.00 0.00 0.00 0.00 0.00 8,833.68 0.00 0.00 87,413.90

1.002016 0.00 0.00 0.00 0.00 0.00 5,429.24 0.00 0.00 90,292.11

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 90,292.11

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 90,292.11

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 90,292.11

0.002020 0.00 0.00 246.21 0.00 0.00 -246.21 0.00 0.00 90,205.55

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 246.21 0.00 0.00 113,519.00 0.00

0.00 0.00

0.00

0.00

90,205.55

0.00 0.00

78.79 0.00

0.00

2,462.20 117.56

0.00 0.00 0.00 0.00 0.00 0.00

1,557.90 0.00 1,443.95 0.00 113,765.21 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

25.30

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.92377000

10/11/2016

1,043.39 / 462.06

0.01

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

100,786.77 90,205.55 81,346.73

20.00% :50.00% :

73,874.61 46,666.09

PW 37,277.5170.00% :

86.56

43,920.91 6,083.33

>1000

Hud Eco Detailed.rpt 53

Page 152: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Producing

SONGKHLA OLIGOCENE

COASTAL ENERGYOLIGOCENE C

Block G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

882.51

114.73

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA - A-312/31/2009

72.59 0.00 585.84 0.00 541.19 0.00 39,284.67 0.00 0.002010

76.59 0.00 407.65 0.00 370.42 0.00 28,370.20 0.00 0.002011

79.59 0.00 284.31 0.00 262.06 0.00 20,857.42 0.00 0.002012

82.59 0.00 197.19 0.00 184.52 0.00 15,239.35 0.00 0.002013

85.59 0.00 137.21 0.00 130.35 0.00 11,156.58 0.00 0.002014

87.43 0.00 95.48 0.00 90.70 0.00 7,930.07 0.00 0.002015

89.31 0.00 17.26 0.00 16.39 0.00 1,464.18 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 39,284.67 0.00 0.00 37,501.51

1.002011 0.00 0.00 0.00 0.00 0.00 28,370.20 0.00 0.00 62,018.55

1.002012 0.00 0.00 0.00 0.00 0.00 20,857.42 0.00 0.00 78,333.66

1.002013 0.00 0.00 0.00 0.00 0.00 15,239.35 0.00 0.00 89,123.47

1.002014 0.00 0.00 0.00 0.00 0.00 11,156.58 0.00 0.00 96,274.34

1.002015 0.00 0.00 0.00 0.00 0.00 7,930.07 0.00 0.00 100,875.68

1.002016 0.00 0.00 0.00 0.00 0.00 1,464.18 0.00 0.00 101,672.32

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 101,672.32

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 101,672.32

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 101,672.32

0.002020 0.00 0.00 246.21 0.00 0.00 -246.21 0.00 0.00 101,585.76

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 246.21 0.00 0.00 124,056.25 0.00

0.00 0.00

0.00

0.00

101,585.76

0.00 0.00

77.90 0.00

0.00

2,607.44 114.73

0.00 0.00 0.00 0.00 0.00 0.00

1,724.93 0.00 1,595.63 0.00 124,302.46 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

30.43

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.92377000

03/22/2016

1,174.90 / 504.86

0.01

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

111,898.16 101,585.76

92,785.6220.00% :50.00% :

85,229.63 56,420.00

PW 45,880.8570.00% :

86.56

58,188.32 6,083.33

>1000

Hud Eco Detailed.rpt 54

Page 153: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Producing

SONGKHLA OLIGOCENE

COASTAL ENERGYOLIGOCENE C

Block G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

34.62

4.50

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA - A-812/31/2009

72.59 0.00 696.76 0.00 643.65 0.00 46,722.20 0.00 0.002010

76.59 0.00 333.18 0.00 302.75 0.00 23,187.41 0.00 0.002011

79.59 0.00 239.61 0.00 220.86 0.00 17,578.28 0.00 0.002012

82.59 0.00 178.60 0.00 167.12 0.00 13,802.77 0.00 0.002013

85.59 0.00 133.97 0.00 127.28 0.00 10,893.54 0.00 0.002014

87.43 0.00 100.50 0.00 95.48 0.00 8,347.44 0.00 0.002015

89.31 0.00 47.99 0.00 45.59 0.00 4,071.47 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 46,722.20 0.00 0.00 44,918.26

1.002011 0.00 0.00 0.00 0.00 0.00 23,187.41 0.00 0.00 64,964.52

1.002012 0.00 0.00 0.00 0.00 0.00 17,578.28 0.00 0.00 78,707.71

1.002013 0.00 0.00 0.00 0.00 0.00 13,802.77 0.00 0.00 88,474.39

1.002014 0.00 0.00 0.00 0.00 0.00 10,893.54 0.00 0.00 95,452.37

1.002015 0.00 0.00 0.00 0.00 0.00 8,347.44 0.00 0.00 100,292.92

1.002016 0.00 0.00 0.00 0.00 0.00 4,071.47 0.00 0.00 102,469.04

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 102,469.04

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 102,469.04

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 102,469.04

0.002020 0.00 0.00 246.21 0.00 0.00 -246.21 0.00 0.00 102,382.48

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 246.21 0.00 0.00 124,356.90 0.00

0.00 0.00

0.00

0.00

102,382.48

0.00 0.00

77.74 0.00

0.00

1,765.23 4.50

0.00 0.00 0.00 0.00 0.00 0.00

1,730.61 0.00 1,602.72 0.00 124,603.11 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

98.34

bbl/monthbbl/month

% year b = 1.500

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.92377000

08/06/2016

1,184.10 / 506.08

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

112,396.51 102,382.48

93,936.3320.00% :50.00% :

86,759.56 60,018.47

PW 50,417.7470.00% :

86.56

126,989.26 6,083.33

>1000

Hud Eco Detailed.rpt 55

Page 154: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Producing

SONGKHLA OLIGOCENE

COASTAL ENERGYOLIGOCENE C

Block G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA PDP LOE12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002012

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 22,937.15 0.00 -22,937.15 0.00 0.00 -21,832.13

1.002011 0.00 0.00 0.00 23,395.89 0.00 -23,395.89 0.00 0.00 -41,991.47

1.002012 0.00 0.00 0.00 23,864.24 0.00 -23,864.24 0.00 0.00 -60,601.89

1.002013 0.00 0.00 0.00 24,341.08 0.00 -24,341.08 0.00 0.00 -77,785.67

1.002014 0.00 0.00 0.00 24,827.90 0.00 -24,827.90 0.00 0.00 -93,652.81

1.002015 0.00 0.00 0.00 16,903.69 0.00 -16,903.69 0.00 0.00 -103,432.39

1.002016 0.00 0.00 0.00 7,369.97 0.00 -7,369.97 0.00 0.00 -107,291.41

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 143,639.92 0.00 -143,639.92 0.00

0.00 0.00

0.00

0.00

-107,291.41

0.00 0.00

0.00 0.00

0.00

0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

0.00

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

12/31/2016

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

-123,609.49-107,291.41

-93,905.7120.00% :50.00% :

-82,849.45-45,203.49

PW -33,650.6770.00% :

0.00

0.00 0.00

0.00

Hud Eco Detailed.rpt 56

Page 155: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Producing

SONGKHLA OLIGOCENE

COATAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA OLIGOCENE - PDP CAPITAL12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002012

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002012 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002013 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002014 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002020 0.00 0.00 2,462.11 0.00 0.00 -2,462.11 0.00 0.00 -865.61

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 2,462.11 0.00 0.00 -2,462.11 0.00

0.00 0.00

0.00

0.00

-865.61

0.00 0.00

0.00 0.00

0.00

0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

0.00

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

12/31/2013

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

-1,458.29-865.61-514.91

20.00% :50.00% :

-306.95-14.39

PW -1.9570.00% :

865.61

0.00 0.00

0.00

Hud Eco Detailed.rpt 57

Page 156: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA OLIGOCENE FieldProved Rsv Class

Shut-In Rsv Category

03/30/2010 11:12:02AMDate :

26.13

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

201.02

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

72.59 0.00 966.67 0.00 892.98 0.00 64,821.17 0.00 0.002010

76.59 0.00 613.45 0.00 557.41 0.00 42,692.14 0.00 0.002011

79.59 0.00 431.72 0.00 397.94 0.00 31,672.38 0.00 0.002012

82.59 0.00 321.60 0.00 300.94 0.00 24,854.43 0.00 0.002013

85.59 0.00 241.25 0.00 229.18 0.00 19,615.83 0.00 0.002014

87.43 0.00 180.97 0.00 171.92 0.00 15,031.10 0.00 0.002015

89.31 0.00 38.47 0.00 36.54 0.00 3,263.54 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

3.002010 0.00 0.00 5,019.66 0.00 0.00 59,801.51 0.00 0.00 56,578.64

3.002011 0.00 0.00 0.00 0.00 0.00 42,692.14 0.00 0.00 93,499.67

3.002012 0.00 0.00 0.00 0.00 0.00 31,672.38 0.00 0.00 118,261.37

3.002013 0.00 0.00 0.00 0.00 0.00 24,854.43 0.00 0.00 135,848.07

3.002014 0.00 0.00 0.00 0.00 0.00 19,615.83 0.00 0.00 148,413.21

3.002015 0.00 0.00 0.00 8,420.77 0.00 6,610.33 0.00 0.00 152,257.69

3.002016 0.00 0.00 0.00 2,195.06 0.00 1,068.48 0.00 0.00 152,880.50

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 152,880.50

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 152,880.50

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 152,880.50

0.002020 0.00 0.00 492.42 0.00 0.00 -492.42 0.00 0.00 152,707.38

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 5,512.08 10,615.83 0.00 185,822.67 0.00

0.00 0.00

0.00

0.00

152,707.38

0.00 0.00

78.07 0.00

0.00

2,995.13 26.13

0.00 0.00 0.00 0.00 0.00 0.00

2,794.11 0.00 2,586.92 0.00 201,950.58 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

30.97 / 34.71

0.23

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

167,997.96 152,707.38 139,527.56

20.00% :50.00% :

128,109.55 83,629.20

PW 66,938.6370.00% :

5,094.88

>1000

Hud Eco Detailed.rpt 58

Page 157: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Shut-In

SONGKHLA OLIGOCENE

COASTAL ENERGYOLIGOCENE C

Block G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

28.12

3.66

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA - A-212/31/2009

72.59 0.00 460.21 0.00 425.12 0.00 30,859.81 0.00 0.002010

76.59 0.00 311.34 0.00 282.90 0.00 21,667.17 0.00 0.002011

79.59 0.00 217.04 0.00 200.06 0.00 15,922.88 0.00 0.002012

82.59 0.00 161.62 0.00 151.24 0.00 12,490.64 0.00 0.002013

85.59 0.00 121.24 0.00 115.18 0.00 9,857.97 0.00 0.002014

87.43 0.00 90.95 0.00 86.40 0.00 7,553.91 0.00 0.002015

89.31 0.00 15.38 0.00 14.61 0.00 1,304.96 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 3,517.13 0.00 0.00 27,342.68 0.00 0.00 25,748.92

1.002011 0.00 0.00 0.00 0.00 0.00 21,667.17 0.00 0.00 44,489.78

1.002012 0.00 0.00 0.00 0.00 0.00 15,922.88 0.00 0.00 56,938.27

1.002013 0.00 0.00 0.00 0.00 0.00 12,490.64 0.00 0.00 65,776.51

1.002014 0.00 0.00 0.00 0.00 0.00 9,857.97 0.00 0.00 72,091.14

1.002015 0.00 0.00 0.00 0.00 0.00 7,553.91 0.00 0.00 76,471.53

1.002016 0.00 0.00 0.00 0.00 0.00 1,304.96 0.00 0.00 77,182.39

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 77,182.39

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 77,182.39

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 77,182.39

0.002020 0.00 0.00 246.21 0.00 0.00 -246.21 0.00 0.00 77,095.83

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 3,763.34 0.00 0.00 95,894.00 0.00

0.00 0.00

0.00

0.00

77,095.83

0.00 0.00

78.13 0.00

0.00

1,405.89 3.66

0.00 0.00 0.00 0.00 0.00 0.00

1,377.77 0.00 1,275.51 0.00 99,657.35 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

95.47

bbl/monthbbl/month

% year b = 1.500

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.92377000

03/14/2016

22.92 / 26.48

0.31

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

85,703.34 77,095.83 69,780.19

20.00% :50.00% :

63,522.81 39,892.36

PW 31,334.1770.00% :

3,518.44

91,250.00 6,177.37

>1000

Hud Eco Detailed.rpt 59

Page 158: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Shut-In

SONGKHLA OLIGOCENE

COASTAL ENERGYOLIGOCENE C

Block G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

172.90

22.48

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA - A-412/31/2009

72.59 0.00 506.46 0.00 467.85 0.00 33,961.36 0.00 0.002010

76.59 0.00 302.11 0.00 274.51 0.00 21,024.97 0.00 0.002011

79.59 0.00 214.68 0.00 197.88 0.00 15,749.50 0.00 0.002012

82.59 0.00 159.98 0.00 149.70 0.00 12,363.78 0.00 0.002013

85.59 0.00 120.01 0.00 114.01 0.00 9,757.85 0.00 0.002014

87.43 0.00 90.02 0.00 85.52 0.00 7,477.19 0.00 0.002015

89.31 0.00 23.08 0.00 21.93 0.00 1,958.58 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 1,502.52 0.00 0.00 32,458.83 0.00 0.00 30,829.72

1.002011 0.00 0.00 0.00 0.00 0.00 21,024.97 0.00 0.00 49,009.89

1.002012 0.00 0.00 0.00 0.00 0.00 15,749.50 0.00 0.00 61,323.10

1.002013 0.00 0.00 0.00 0.00 0.00 12,363.78 0.00 0.00 70,071.57

1.002014 0.00 0.00 0.00 0.00 0.00 9,757.85 0.00 0.00 76,322.07

1.002015 0.00 0.00 0.00 0.00 0.00 7,477.19 0.00 0.00 80,657.97

1.002016 0.00 0.00 0.00 0.00 0.00 1,958.58 0.00 0.00 81,719.29

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 81,719.29

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 81,719.29

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 81,719.29

0.002020 0.00 0.00 246.21 0.00 0.00 -246.21 0.00 0.00 81,632.73

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 1,748.74 0.00 0.00 100,544.50 0.00

0.00 0.00

0.00

0.00

81,632.73

0.00 0.00

78.00 0.00

0.00

1,589.24 22.48

0.00 0.00 0.00 0.00 0.00 0.00

1,416.34 0.00 1,311.41 0.00 102,293.24 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

95.00

bbl/monthbbl/month

% year b = 1.500

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.92377000

04/22/2016

52.80 / 58.50

0.17

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

90,282.50 81,632.73 74,294.02

20.00% :50.00% :

68,025.86 44,403.68

PW 35,834.9170.00% :

1,576.44

91,250.00 5,926.20

>1000

Hud Eco Detailed.rpt 60

Page 159: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Shut-In

SONGKHLA OLIGOCENE

COASTAL ENERGYOLIGOCENE C

Block G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA PDSI LOE12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002012

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002012 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002013 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002014 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002015 0.00 0.00 0.00 8,420.77 0.00 -8,420.77 0.00 0.00 -4,871.81

1.002016 0.00 0.00 0.00 2,195.06 0.00 -2,195.06 0.00 0.00 -6,021.18

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 10,615.83 0.00 -10,615.83 0.00

0.00 0.00

0.00

0.00

-6,021.18

0.00 0.00

0.00 0.00

0.00

0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

0.00

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

12/31/2016

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

-7,987.88-6,021.18-4,546.64

20.00% :50.00% :

-3,439.12-666.84

PW -230.4570.00% :

0.00

0.00 0.00

0.00

Hud Eco Detailed.rpt 61

Page 160: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA OLIGOCENE FieldProbable Rsv Class

03/30/2010 11:12:02AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

72.59 0.00 419.42 0.00 371.52 0.00 26,968.82 0.00 0.002010

76.59 0.00 557.65 0.00 480.37 0.00 36,791.23 0.00 0.002011

79.59 0.00 495.56 0.00 432.39 0.00 34,414.20 0.00 0.002012

82.59 0.00 444.71 0.00 393.93 0.00 32,534.93 0.00 0.002013

85.59 0.00 72.13 0.00 66.29 0.00 5,674.04 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 3,009.62 0.00 0.00 23,959.20 0.00 0.00 22,297.77

1.002011 0.00 0.00 0.00 0.00 0.00 36,791.23 0.00 0.00 54,031.26

1.002012 0.00 0.00 0.00 0.00 0.00 34,414.20 0.00 0.00 80,895.40

1.002013 0.00 0.00 0.00 0.00 0.00 32,534.93 0.00 0.00 103,885.32

1.002014 0.00 0.00 0.00 0.00 0.00 5,674.04 0.00 0.00 107,662.23

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 107,662.23

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 107,662.23

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 107,662.23

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 107,662.23

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 107,662.23

0.002020 0.00 0.00 492.42 0.00 0.00 -492.42 0.00 0.00 107,489.11

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 3,502.04 0.00 0.00 132,881.16 0.00

0.00 0.00

0.00

0.00

107,489.11

0.00 0.00

78.18 0.00

0.00

1,989.47 0.00

0.00 0.00 0.00 0.00 0.00 0.00

1,989.47 0.00 1,744.51 0.00 136,383.21 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

35.29 / 38.94

0.41

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

119,338.77 107,489.11

97,105.2620.00% :50.00% :

87,987.80 51,708.84

PW 38,161.3870.00% :

3,134.71

694.36

Hud Eco Detailed.rpt 62

Page 161: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA OLIGOCENE FieldProbable Rsv Class

Undeveloped Rsv Category

03/30/2010 11:12:02AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

72.59 0.00 419.42 0.00 371.52 0.00 26,968.82 0.00 0.002010

76.59 0.00 557.65 0.00 480.37 0.00 36,791.23 0.00 0.002011

79.59 0.00 495.56 0.00 432.39 0.00 34,414.20 0.00 0.002012

82.59 0.00 444.71 0.00 393.93 0.00 32,534.93 0.00 0.002013

85.59 0.00 72.13 0.00 66.29 0.00 5,674.04 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 3,009.62 0.00 0.00 23,959.20 0.00 0.00 22,297.77

1.002011 0.00 0.00 0.00 0.00 0.00 36,791.23 0.00 0.00 54,031.26

1.002012 0.00 0.00 0.00 0.00 0.00 34,414.20 0.00 0.00 80,895.40

1.002013 0.00 0.00 0.00 0.00 0.00 32,534.93 0.00 0.00 103,885.32

1.002014 0.00 0.00 0.00 0.00 0.00 5,674.04 0.00 0.00 107,662.23

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 107,662.23

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 107,662.23

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 107,662.23

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 107,662.23

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 107,662.23

0.002020 0.00 0.00 492.42 0.00 0.00 -492.42 0.00 0.00 107,489.11

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 3,502.04 0.00 0.00 132,881.16 0.00

0.00 0.00

0.00

0.00

107,489.11

0.00 0.00

78.18 0.00

0.00

1,989.47 0.00

0.00 0.00 0.00 0.00 0.00 0.00

1,989.47 0.00 1,744.51 0.00 136,383.21 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

35.29 / 38.94

0.41

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

119,338.77 107,489.11

97,105.2620.00% :50.00% :

87,987.80 51,708.84

PW 38,161.3870.00% :

3,134.71

694.36

Hud Eco Detailed.rpt 63

Page 162: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Probable Undeveloped

SONGKHLA OLIGOCENE

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA - PROB INCREMENTAL12/31/2009

72.59 0.00 419.42 0.00 371.52 0.00 26,968.82 0.00 0.002010

76.59 0.00 557.65 0.00 480.37 0.00 36,791.23 0.00 0.002011

79.59 0.00 495.56 0.00 432.39 0.00 34,414.20 0.00 0.002012

82.59 0.00 444.71 0.00 393.93 0.00 32,534.93 0.00 0.002013

85.59 0.00 72.13 0.00 66.29 0.00 5,674.04 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 3,009.62 0.00 0.00 23,959.20 0.00 0.00 22,297.77

1.002011 0.00 0.00 0.00 0.00 0.00 36,791.23 0.00 0.00 54,031.26

1.002012 0.00 0.00 0.00 0.00 0.00 34,414.20 0.00 0.00 80,895.40

1.002013 0.00 0.00 0.00 0.00 0.00 32,534.93 0.00 0.00 103,885.32

1.002014 0.00 0.00 0.00 0.00 0.00 5,674.04 0.00 0.00 107,662.23

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 107,662.23

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 107,662.23

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 107,662.23

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 107,662.23

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 107,662.23

0.002020 0.00 0.00 492.42 0.00 0.00 -492.42 0.00 0.00 107,489.11

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 3,502.04 0.00 0.00 132,881.16 0.00

0.00 0.00

0.00

0.00

107,489.11

0.00 0.00

78.18 0.00

0.00

1,989.47 0.00

0.00 0.00 0.00 0.00 0.00 0.00

1,989.47 0.00 1,744.51 0.00 136,383.21 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

14.30

bbl/monthbbl/month

% year b = 1.100

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.88579900

03/05/2014

35.30 / 38.94

0.41

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

119,338.77 107,489.11

97,105.2620.00% :50.00% :

87,987.80 51,708.84

PW 38,161.3870.00% :

3,134.71

54,750.00 34,431.65

694.36

Hud Eco Detailed.rpt 64

Page 163: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA OLIGOCENE FieldPossible Rsv Class

03/30/2010 11:12:02AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 211.09 0.00 168.87 0.00 12,933.89 0.00 0.002011

79.59 0.00 371.98 0.00 316.19 0.00 25,165.30 0.00 0.002012

82.59 0.00 322.06 0.00 278.61 0.00 23,010.02 0.00 0.002013

85.59 0.00 285.04 0.00 251.44 0.00 21,520.45 0.00 0.002014

87.43 0.00 256.34 0.00 228.52 0.00 19,979.13 0.00 0.002015

89.31 0.00 230.66 0.00 213.98 0.00 19,110.40 0.00 0.002016

91.23 0.00 11.32 0.00 10.73 0.00 978.64 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

2.002011 0.00 0.00 0.00 0.00 0.00 12,933.89 0.00 0.00 10,872.82

2.002012 0.00 0.00 3,152.09 0.00 0.00 22,013.21 0.00 0.00 28,065.45

2.002013 0.00 0.00 0.00 0.00 0.00 23,010.02 0.00 0.00 44,326.12

2.002014 0.00 0.00 0.00 0.00 0.00 21,520.45 0.00 0.00 58,091.69

2.002015 0.00 0.00 0.00 0.00 0.00 19,979.13 0.00 0.00 69,661.18

2.002016 0.00 0.00 0.00 12,851.95 0.00 6,258.45 0.00 0.00 72,947.40

2.002017 0.00 0.00 0.00 649.64 0.00 329.00 0.00 0.00 73,125.56

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 73,125.56

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 73,125.56

0.002020 0.00 0.00 246.21 0.00 0.00 -246.21 0.00 0.00 73,039.00

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 3,398.30 13,501.60 0.00 105,797.95 0.00

0.00 0.00

0.00

0.00

73,039.00

0.00 0.00

83.56 0.00

0.00

1,688.49 0.00

0.00 0.00 0.00 0.00 0.00 0.00

1,688.49 0.00 1,468.32 0.00 122,697.84 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

29.70 / 32.13

1.62

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

87,660.75 73,039.00 61,189.94

20.00% :50.00% :

51,537.15 20,364.04

PW 11,894.0770.00% :

2,544.71

>1000

Hud Eco Detailed.rpt 65

Page 164: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA OLIGOCENE FieldPossible Rsv Class

Undeveloped Rsv Category

03/30/2010 11:12:02AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 211.09 0.00 168.87 0.00 12,933.89 0.00 0.002011

79.59 0.00 371.98 0.00 316.19 0.00 25,165.30 0.00 0.002012

82.59 0.00 322.06 0.00 278.61 0.00 23,010.02 0.00 0.002013

85.59 0.00 285.04 0.00 251.44 0.00 21,520.45 0.00 0.002014

87.43 0.00 256.34 0.00 228.52 0.00 19,979.13 0.00 0.002015

89.31 0.00 230.66 0.00 213.98 0.00 19,110.40 0.00 0.002016

91.23 0.00 11.32 0.00 10.73 0.00 978.64 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

2.002011 0.00 0.00 0.00 0.00 0.00 12,933.89 0.00 0.00 10,872.82

2.002012 0.00 0.00 3,152.09 0.00 0.00 22,013.21 0.00 0.00 28,065.45

2.002013 0.00 0.00 0.00 0.00 0.00 23,010.02 0.00 0.00 44,326.12

2.002014 0.00 0.00 0.00 0.00 0.00 21,520.45 0.00 0.00 58,091.69

2.002015 0.00 0.00 0.00 0.00 0.00 19,979.13 0.00 0.00 69,661.18

2.002016 0.00 0.00 0.00 12,851.95 0.00 6,258.45 0.00 0.00 72,947.40

2.002017 0.00 0.00 0.00 649.64 0.00 329.00 0.00 0.00 73,125.56

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 73,125.56

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 73,125.56

0.002020 0.00 0.00 246.21 0.00 0.00 -246.21 0.00 0.00 73,039.00

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 3,398.30 13,501.60 0.00 105,797.95 0.00

0.00 0.00

0.00

0.00

73,039.00

0.00 0.00

83.56 0.00

0.00

1,688.49 0.00

0.00 0.00 0.00 0.00 0.00 0.00

1,688.49 0.00 1,468.32 0.00 122,697.84 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

29.70 / 32.13

1.62

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

87,660.75 73,039.00 61,189.94

20.00% :50.00% :

51,537.15 20,364.04

PW 11,894.0770.00% :

2,544.71

>1000

Hud Eco Detailed.rpt 66

Page 165: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Possible Undeveloped

SONGKHLA OLIGOCENE

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA - POSS INCREMENTAL12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 211.09 0.00 168.87 0.00 12,933.89 0.00 0.002011

79.59 0.00 371.98 0.00 316.19 0.00 25,165.30 0.00 0.002012

82.59 0.00 322.06 0.00 278.61 0.00 23,010.02 0.00 0.002013

85.59 0.00 285.04 0.00 251.44 0.00 21,520.45 0.00 0.002014

87.43 0.00 256.34 0.00 228.52 0.00 19,979.13 0.00 0.002015

89.31 0.00 230.66 0.00 213.98 0.00 19,110.40 0.00 0.002016

91.23 0.00 11.32 0.00 10.73 0.00 978.64 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

0.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002011 0.00 0.00 0.00 0.00 0.00 12,933.89 0.00 0.00 10,872.82

1.002012 0.00 0.00 3,152.09 0.00 0.00 22,013.21 0.00 0.00 28,065.45

1.002013 0.00 0.00 0.00 0.00 0.00 23,010.02 0.00 0.00 44,326.12

1.002014 0.00 0.00 0.00 0.00 0.00 21,520.45 0.00 0.00 58,091.69

1.002015 0.00 0.00 0.00 0.00 0.00 19,979.13 0.00 0.00 69,661.18

1.002016 0.00 0.00 0.00 0.00 0.00 19,110.40 0.00 0.00 79,676.85

1.002017 0.00 0.00 0.00 0.00 0.00 978.64 0.00 0.00 80,162.95

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 80,162.95

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 80,162.95

0.002020 0.00 0.00 246.21 0.00 0.00 -246.21 0.00 0.00 80,076.39

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 3,398.30 0.00 0.00 119,299.54 0.00

0.00 0.00

0.00

0.00

80,076.39

0.00 0.00

83.56 0.00

0.00

1,688.49 0.00

0.00 0.00 0.00 0.00 0.00 0.00

1,688.49 0.00 1,468.32 0.00 122,697.84 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

16.72

bbl/monthbbl/month

% year b = 1.100

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

01/19/2017

32.48 / 36.11

1.62

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

97,400.24 80,076.39 66,283.27

20.00% :50.00% :

55,229.46 20,917.98

PW 12,055.2870.00% :

2,544.71

36,500.00 18,087.70

>1000

Hud Eco Detailed.rpt 67

Page 166: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Possible Undeveloped

SONGKHLA OLIGOCENE

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA - POSS LOE12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002012

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002012 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002013 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002014 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002016 0.00 0.00 0.00 12,851.95 0.00 -12,851.95 0.00 0.00 -6,729.46

1.002017 0.00 0.00 0.00 649.64 0.00 -649.64 0.00 0.00 -7,037.39

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 13,501.60 0.00 -13,501.60 0.00

0.00 0.00

0.00

0.00

-7,037.39

0.00 0.00

0.00 0.00

0.00

0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

0.00

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

12/31/2017

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

-9,739.50-7,037.39-5,093.33

20.00% :50.00% :

-3,692.31-553.94

PW -161.2170.00% :

0.00

0.00 0.00

0.00

Hud Eco Detailed.rpt 68

Page 167: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA OLIGOCENE WEDGE Field

03/30/2010 11:12:02AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 1,081.57 0.00 865.25 0.00 66,269.70 0.00 0.002011

79.59 0.00 611.80 0.00 520.03 0.00 41,389.46 0.00 0.002012

82.59 0.00 432.93 0.00 374.52 0.00 30,931.49 0.00 0.002013

85.59 0.00 338.18 0.00 298.31 0.00 25,532.35 0.00 0.002014

87.43 0.00 278.65 0.00 248.40 0.00 21,717.58 0.00 0.002015

89.31 0.00 238.20 0.00 220.98 0.00 19,735.50 0.00 0.002016

91.23 0.00 207.42 0.00 196.52 0.00 17,928.94 0.00 0.002017

93.18 0.00 184.85 0.00 175.61 0.00 16,363.03 0.00 0.002018

95.17 0.00 106.40 0.00 101.08 0.00 9,619.89 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 12,179.06 0.00 0.00 -12,179.06 0.00 0.00 -11,305.44

4.002011 0.00 0.00 0.00 0.00 0.00 66,269.70 0.00 0.00 46,154.07

4.002012 0.00 0.00 0.00 0.00 0.00 41,389.46 0.00 0.00 78,542.82

4.002013 0.00 0.00 0.00 0.00 0.00 30,931.49 0.00 0.00 100,428.66

4.002014 0.00 0.00 0.00 0.00 0.00 25,532.35 0.00 0.00 116,773.99

4.002015 0.00 0.00 0.00 0.00 0.00 21,717.58 0.00 0.00 129,355.93

4.002016 0.00 0.00 0.00 3,414.44 0.00 16,321.07 0.00 0.00 137,914.84

4.002017 0.00 0.00 0.00 12,035.68 0.00 5,893.26 0.00 0.00 140,716.58

4.002018 0.00 0.00 0.00 11,004.39 0.00 5,358.64 0.00 0.00 143,021.30

4.002019 0.00 0.00 0.00 6,396.75 0.00 3,223.14 0.00 0.00 144,342.88

0.002020 0.00 0.00 738.63 0.00 0.00 -738.63 0.00 0.00 144,083.20

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 12,917.69 32,851.26 0.00 203,719.00 0.00

0.00 0.00

0.00

0.00

144,083.20

0.00 0.00

83.14 0.00

0.00

3,480.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

3,480.00 0.00 3,000.70 0.00 249,487.95 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

13.46 / 16.77

1.14

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

170,508.26 144,083.20 122,819.84

20.00% :50.00% :

105,524.72 48,155.72

PW 30,940.7470.00% :

11,565.13

337.50

Hud Eco Detailed.rpt 69

Page 168: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA OLIGOCENE WEDGE FieldPossible Rsv Class

03/30/2010 11:12:02AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 1,081.57 0.00 865.25 0.00 66,269.70 0.00 0.002011

79.59 0.00 611.80 0.00 520.03 0.00 41,389.46 0.00 0.002012

82.59 0.00 432.93 0.00 374.52 0.00 30,931.49 0.00 0.002013

85.59 0.00 338.18 0.00 298.31 0.00 25,532.35 0.00 0.002014

87.43 0.00 278.65 0.00 248.40 0.00 21,717.58 0.00 0.002015

89.31 0.00 238.20 0.00 220.98 0.00 19,735.50 0.00 0.002016

91.23 0.00 207.42 0.00 196.52 0.00 17,928.94 0.00 0.002017

93.18 0.00 184.85 0.00 175.61 0.00 16,363.03 0.00 0.002018

95.17 0.00 106.40 0.00 101.08 0.00 9,619.89 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 12,179.06 0.00 0.00 -12,179.06 0.00 0.00 -11,305.44

4.002011 0.00 0.00 0.00 0.00 0.00 66,269.70 0.00 0.00 46,154.07

4.002012 0.00 0.00 0.00 0.00 0.00 41,389.46 0.00 0.00 78,542.82

4.002013 0.00 0.00 0.00 0.00 0.00 30,931.49 0.00 0.00 100,428.66

4.002014 0.00 0.00 0.00 0.00 0.00 25,532.35 0.00 0.00 116,773.99

4.002015 0.00 0.00 0.00 0.00 0.00 21,717.58 0.00 0.00 129,355.93

4.002016 0.00 0.00 0.00 3,414.44 0.00 16,321.07 0.00 0.00 137,914.84

4.002017 0.00 0.00 0.00 12,035.68 0.00 5,893.26 0.00 0.00 140,716.58

4.002018 0.00 0.00 0.00 11,004.39 0.00 5,358.64 0.00 0.00 143,021.30

4.002019 0.00 0.00 0.00 6,396.75 0.00 3,223.14 0.00 0.00 144,342.88

0.002020 0.00 0.00 738.63 0.00 0.00 -738.63 0.00 0.00 144,083.20

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 12,917.69 32,851.26 0.00 203,719.00 0.00

0.00 0.00

0.00

0.00

144,083.20

0.00 0.00

83.14 0.00

0.00

3,480.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

3,480.00 0.00 3,000.70 0.00 249,487.95 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

13.46 / 16.77

1.14

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

170,508.26 144,083.20 122,819.84

20.00% :50.00% :

105,524.72 48,155.72

PW 30,940.7470.00% :

11,565.13

337.50

Hud Eco Detailed.rpt 70

Page 169: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA OLIGOCENE WEDGE FieldPossible Rsv Class

Undeveloped Rsv Category

03/30/2010 11:12:02AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 1,081.57 0.00 865.25 0.00 66,269.70 0.00 0.002011

79.59 0.00 611.80 0.00 520.03 0.00 41,389.46 0.00 0.002012

82.59 0.00 432.93 0.00 374.52 0.00 30,931.49 0.00 0.002013

85.59 0.00 338.18 0.00 298.31 0.00 25,532.35 0.00 0.002014

87.43 0.00 278.65 0.00 248.40 0.00 21,717.58 0.00 0.002015

89.31 0.00 238.20 0.00 220.98 0.00 19,735.50 0.00 0.002016

91.23 0.00 207.42 0.00 196.52 0.00 17,928.94 0.00 0.002017

93.18 0.00 184.85 0.00 175.61 0.00 16,363.03 0.00 0.002018

95.17 0.00 106.40 0.00 101.08 0.00 9,619.89 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 12,179.06 0.00 0.00 -12,179.06 0.00 0.00 -11,305.44

4.002011 0.00 0.00 0.00 0.00 0.00 66,269.70 0.00 0.00 46,154.07

4.002012 0.00 0.00 0.00 0.00 0.00 41,389.46 0.00 0.00 78,542.82

4.002013 0.00 0.00 0.00 0.00 0.00 30,931.49 0.00 0.00 100,428.66

4.002014 0.00 0.00 0.00 0.00 0.00 25,532.35 0.00 0.00 116,773.99

4.002015 0.00 0.00 0.00 0.00 0.00 21,717.58 0.00 0.00 129,355.93

4.002016 0.00 0.00 0.00 3,414.44 0.00 16,321.07 0.00 0.00 137,914.84

4.002017 0.00 0.00 0.00 12,035.68 0.00 5,893.26 0.00 0.00 140,716.58

4.002018 0.00 0.00 0.00 11,004.39 0.00 5,358.64 0.00 0.00 143,021.30

4.002019 0.00 0.00 0.00 6,396.75 0.00 3,223.14 0.00 0.00 144,342.88

0.002020 0.00 0.00 738.63 0.00 0.00 -738.63 0.00 0.00 144,083.20

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 12,917.69 32,851.26 0.00 203,719.00 0.00

0.00 0.00

0.00

0.00

144,083.20

0.00 0.00

83.14 0.00

0.00

3,480.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

3,480.00 0.00 3,000.70 0.00 249,487.95 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

13.46 / 16.77

1.14

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

170,508.26 144,083.20 122,819.84

20.00% :50.00% :

105,524.72 48,155.72

PW 30,940.7470.00% :

11,565.13

337.50

Hud Eco Detailed.rpt 71

Page 170: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Possible Undeveloped

SONGKHLA OLIGOCENE WEDGE

COASTAL ENERGYOLIGOCENE C WEDGE

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA - POSS WEDGE12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 1,081.57 0.00 865.25 0.00 66,269.70 0.00 0.002011

79.59 0.00 611.80 0.00 520.03 0.00 41,389.46 0.00 0.002012

82.59 0.00 432.93 0.00 374.52 0.00 30,931.49 0.00 0.002013

85.59 0.00 338.18 0.00 298.31 0.00 25,532.35 0.00 0.002014

87.43 0.00 278.65 0.00 248.40 0.00 21,717.58 0.00 0.002015

89.31 0.00 238.20 0.00 220.98 0.00 19,735.50 0.00 0.002016

91.23 0.00 207.42 0.00 196.52 0.00 17,928.94 0.00 0.002017

93.18 0.00 184.85 0.00 175.61 0.00 16,363.03 0.00 0.002018

95.17 0.00 106.40 0.00 101.08 0.00 9,619.89 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

0.002010 0.00 0.00 12,179.06 0.00 0.00 -12,179.06 0.00 0.00 -11,305.44

3.002011 0.00 0.00 0.00 0.00 0.00 66,269.70 0.00 0.00 46,154.07

3.002012 0.00 0.00 0.00 0.00 0.00 41,389.46 0.00 0.00 78,542.82

3.002013 0.00 0.00 0.00 0.00 0.00 30,931.49 0.00 0.00 100,428.66

3.002014 0.00 0.00 0.00 0.00 0.00 25,532.35 0.00 0.00 116,773.99

3.002015 0.00 0.00 0.00 0.00 0.00 21,717.58 0.00 0.00 129,355.93

3.002016 0.00 0.00 0.00 0.00 0.00 19,735.50 0.00 0.00 139,702.69

3.002017 0.00 0.00 0.00 0.00 0.00 17,928.94 0.00 0.00 148,209.37

3.002018 0.00 0.00 0.00 0.00 0.00 16,363.03 0.00 0.00 155,236.09

3.002019 0.00 0.00 0.00 0.00 0.00 9,619.89 0.00 0.00 159,042.53

0.002020 0.00 0.00 738.63 0.00 0.00 -738.63 0.00 0.00 158,782.85

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 12,917.69 0.00 0.00 236,570.26 0.00

0.00 0.00

0.00

0.00

158,782.85

0.00 0.00

83.14 0.00

0.00

3,480.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

3,480.00 0.00 3,000.70 0.00 249,487.95 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

70.57

bbl/monthbbl/month

% year b = 1.100

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

08/18/2019

14.73 / 19.31

1.14

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

192,440.10 158,782.85 132,710.53

20.00% :50.00% :

112,205.28 48,841.20

PW 31,101.7970.00% :

11,565.13

136,875.00 13,618.86

337.50

Hud Eco Detailed.rpt 72

Page 171: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Possible Undeveloped

SONGKHLA OLIGOCENE WEDGE

COASTAL ENERGYOLIGOCENE C WEDGE

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:12:02AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA - POSS WEDGE LOE12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002012

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002012 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002013 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002014 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002016 0.00 0.00 0.00 3,414.44 0.00 -3,414.44 0.00 0.00 -1,787.85

1.002017 0.00 0.00 0.00 12,035.68 0.00 -12,035.68 0.00 0.00 -7,492.79

1.002018 0.00 0.00 0.00 11,004.39 0.00 -11,004.39 0.00 0.00 -12,214.80

1.002019 0.00 0.00 0.00 6,396.75 0.00 -6,396.75 0.00 0.00 -14,699.65

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 32,851.26 0.00 -32,851.26 0.00

0.00 0.00

0.00

0.00

-14,699.65

0.00 0.00

0.00 0.00

0.00

0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

0.00

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

12/31/2019

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

-21,931.85-14,699.65

-9,890.6920.00% :50.00% :

-6,680.56-685.48

PW -161.0570.00% :

0.00

0.00 0.00

0.00

Hud Eco Detailed.rpt 73

Page 172: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

APPENDIX G:

Detailed Cash Flow Projections Forecast Price Case – Net to Coastal Energy

Onshore Property Evaluation

(Proved + Probable + Possible)

Table 1.2 Data

Page 173: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Lease Name Life

(years)

Oil

(Mbbl)

Gas

(MMcf)

Gas

(M$)

Oil

(M$)

Other

(M$)

Expense

& Tax

(M$)Invest.

(M$)

Non-Disc.

(M$)

3/30/2010

Cash FlowNet Reserves Net Revenue

Ownership Group :

Project Name : As of Date:

Economic One-Liners

Reserve Category

2:31:30PM

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

Disc. 10%

(M$)Risked / UnRisked

12/31/2009

Grand Total 299,215.41 832,596.37 14,373.06 45,884.56 0.00 838,083.39 54,770.60 112,387.15Total 21.90 591.16

Proved Rsv Class 154,563.33 270,037.67 9,788.79 22,328.47 0.00 284,484.72 17,670.22 40,901.75Total 11.91 215.14

Proved Rsv Class

Producing Rsv Category 154,563.33 270,037.67 9,788.79 22,328.47 0.00 284,484.72 17,670.22 40,901.75Total 11.91 215.14

Probable Rsv Class 144,652.08 562,558.70 4,584.27 23,556.08 0.00 553,598.67 37,100.38 71,485.41Total 21.90 376.01

Probable Rsv Class

Undeveloped Rsv Category 144,652.08 562,558.70 4,584.27 23,556.08 0.00 553,598.67 37,100.38 71,485.41Total 21.90 376.01

ONSHORE LOCATION 299,215.41 832,596.37 14,373.06 45,884.56 0.00 838,083.39 54,770.60 112,387.15Total 21.90 591.16

ONSHORE LOCATION

SINPHUHORM Field 299,215.41 832,596.37 14,373.06 45,884.56 0.00 838,083.39 54,770.60 112,387.15Total 21.90 591.16

ONSHORE LOCATION

SINPHUHORM Field

Proved Rsv Class 154,563.33 270,037.67 9,788.79 22,328.47 0.00 284,484.72 17,670.22 40,901.75Total 11.91 215.14

ONSHORE LOCATION

SINPHUHORM Field

Proved Rsv Class

Producing Rsv Category 154,563.33 270,037.67 9,788.79 22,328.47 0.00 284,484.72 17,670.22 40,901.75Total 11.91 215.14

270,037.67 154,563.33 11.91 40,901.75 0.00 17,670.22 284,484.72 22,328.47 9,788.79P-DP 215.14SINPHUHORM - PDP CASE

ONSHORE LOCATION

SINPHUHORM Field

Probable Rsv Class 144,652.08 562,558.70 4,584.27 23,556.08 0.00 553,598.67 37,100.38 71,485.41Total 21.90 376.01

ONSHORE LOCATION

SINPHUHORM Field

Probable Rsv Class

Undeveloped Rsv Category 144,652.08 562,558.70 4,584.27 23,556.08 0.00 553,598.67 37,100.38 71,485.41Total 21.90 376.01

55,059.31 26,281.96 11.92 7,950.92 0.00 3,561.07 56,066.03 82.21 4,485.58PR-UD 41.82SINPHUHORM - PTT PROB PRIMARY

347,415.16 66,259.21 21.90 43,606.40 0.00 23,615.32 347,166.35 23,267.83 98.69PR-UD 229.37SINPHUHORM - PTT PROB EXTENTION

67,501.53 34,457.74 11.92 9,026.48 0.00 4,020.15 63,574.70 93.33 0.00PR-UD 47.48SINPHUHORM - CNG PROB PRIMARY

92,582.70 17,653.16 21.90 10,901.60 0.00 5,903.83 86,791.59 112.72 0.00PR-UD 57.34SINPHUHORM - CNG PROB EXTENTION

TRC Eco One Liner.rpt 1

Page 174: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTION03/30/2010 11:17:13AMDate :

94,621.24

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

502.93

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

GRAND TOTAL CASE

Total

69.09 6.67 186.23 35,405.00 20.60 3,916.50 1,423.31 26,118.50 0.002010

71.95 6.92 193.91 36,865.00 21.45 4,078.01 1,543.35 28,209.80 0.002011

74.80 6.39 202.04 38,410.00 22.35 4,248.91 1,671.73 27,152.75 0.002012

77.66 6.61 211.19 40,150.00 23.36 4,441.39 1,814.28 29,364.68 0.002013

80.52 6.83 220.79 41,975.00 24.42 4,643.27 1,966.60 31,730.54 0.002014

82.28 6.97 232.31 44,165.00 25.70 4,885.53 2,114.42 34,051.45 0.002015

84.07 6.98 244.27 46,440.00 27.02 5,137.19 2,271.71 35,840.98 0.002016

85.90 7.12 251.51 47,815.00 27.82 5,289.30 2,389.89 37,638.22 0.002017

87.76 7.26 255.35 48,545.00 28.25 5,370.05 2,478.92 38,970.75 0.002018

89.65 7.40 259.19 49,275.00 28.67 5,450.80 2,570.37 40,347.59 0.002019

90.54 7.11 259.63 49,360.00 28.72 5,460.20 2,600.46 38,827.45 0.002020

92.36 7.24 259.19 49,275.00 28.67 5,450.80 2,647.98 39,438.42 0.002021

94.20 7.36 259.19 49,275.00 28.67 5,450.80 2,700.88 40,127.02 0.002022

96.08 7.49 259.19 49,275.00 28.67 5,450.80 2,754.86 40,831.76 0.002023

98.01 7.62 259.90 49,410.00 28.75 5,465.73 2,817.69 41,661.08 0.002024

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

5.002010 0.00 0.00 1,723.51 1,646.96 0.00 24,130.84 40.49 0.00 22,967.54

5.002011 0.00 0.00 1,080.83 1,679.88 0.00 26,950.27 42.16 0.00 46,189.00

5.002012 0.00 0.00 6,163.26 1,713.53 0.00 20,903.75 43.93 0.00 62,492.27

5.002013 0.00 0.00 4,552.19 1,747.80 0.00 24,833.05 45.92 0.00 80,023.15

5.002014 0.00 0.00 13.82 1,782.73 0.00 31,852.58 48.01 0.00 100,379.70

5.002015 0.00 0.00 0.00 1,818.36 0.00 34,297.00 50.51 0.00 120,222.34

5.002016 0.00 0.00 0.00 1,854.78 0.00 36,204.79 53.12 0.00 139,181.38

5.002017 0.00 0.00 0.00 1,891.87 0.00 38,081.55 54.69 0.00 157,232.54

5.002018 0.00 0.00 0.00 1,929.68 0.00 39,464.46 55.52 0.00 174,167.25

5.002019 0.00 0.00 0.00 1,968.25 0.00 40,893.36 56.36 0.00 190,052.91

5.002020 0.00 0.00 0.00 2,007.68 0.00 39,363.77 56.46 0.00 203,893.24

5.002021 0.00 0.00 0.00 2,047.73 0.00 39,982.31 56.36 0.00 216,616.55

2.002022 0.00 0.00 740.75 2,088.75 0.00 39,942.04 56.36 0.00 228,123.56

2.002023 0.00 0.00 0.00 2,130.50 0.00 41,399.77 56.36 0.00 238,920.75

2.002024 0.00 0.00 0.00 2,173.17 0.00 42,249.09 56.51 0.00 248,894.31

Rem.

Total

0.00 0.00 98.69 16,240.87 0.00 312,047.75

0.00 0.00 14,373.06 44,722.54 0.00 832,596.37 1,162.02

389.26 0.00

0.00

50,321.10

299,215.41

106.07 8.18

92.65 7.46

0.00

5,846.96 1,110,596.24

1,790.16 340,335.00 198.03 37,647.86 21,004.16 307,772.41

5,344.03 1,015,975.00 591.16 112,387.15 54,770.60 838,083.39 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

28.64 / 58.93

0.56

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

476,351.54 299,215.41 204,518.87

20.00% :50.00% :

150,025.36 52,891.48

PW 36,965.4270.00% :

10,824.76

>1000

Hud Eco Detailed.rpt 1

Page 175: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTION

Proved Rsv Class

03/30/2010 11:17:13AMDate :

94,621.24

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

502.93

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK SUB-TOTAL CASE

Total

69.09 6.67 163.19 31,025.00 18.05 3,431.99 1,247.23 22,887.34 0.002010

71.95 6.92 163.19 31,025.00 18.05 3,431.99 1,298.86 23,740.92 0.002011

74.80 6.39 163.64 31,110.00 18.10 3,441.39 1,354.01 21,992.24 0.002012

77.66 6.61 163.19 31,025.00 18.05 3,431.99 1,401.94 22,690.89 0.002013

80.52 6.83 163.19 31,025.00 18.05 3,431.99 1,453.57 23,453.01 0.002014

82.28 6.97 163.19 31,025.00 18.05 3,431.99 1,485.34 23,920.44 0.002015

84.07 6.98 163.64 31,110.00 18.10 3,441.39 1,521.81 24,009.75 0.002016

85.90 7.12 163.19 31,025.00 18.05 3,431.99 1,550.69 24,421.75 0.002017

87.76 7.26 163.19 31,025.00 18.05 3,431.99 1,584.26 24,906.12 0.002018

89.65 7.40 163.19 31,025.00 18.05 3,431.99 1,618.38 25,404.04 0.002019

90.54 7.11 163.64 31,110.00 18.10 3,441.39 1,639.00 24,471.67 0.002020

92.27 7.24 148.44 28,220.00 16.42 3,121.70 1,515.14 22,586.55 0.002021

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002022

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

3.002010 0.00 0.00 1,723.51 1,646.96 0.00 20,728.61 35.48 0.00 19,728.69

3.002011 0.00 0.00 1,080.83 1,679.88 0.00 22,243.58 35.48 0.00 38,893.92

3.002012 0.00 0.00 3,506.68 1,713.53 0.00 18,090.45 35.58 0.00 53,002.57

3.002013 0.00 0.00 2,723.18 1,747.80 0.00 19,586.36 35.48 0.00 66,828.73

3.002014 0.00 0.00 13.82 1,782.73 0.00 23,074.54 35.48 0.00 81,574.45

3.002015 0.00 0.00 0.00 1,818.36 0.00 23,551.94 35.48 0.00 95,199.55

3.002016 0.00 0.00 0.00 1,854.78 0.00 23,641.20 35.58 0.00 107,579.06

3.002017 0.00 0.00 0.00 1,891.87 0.00 24,045.08 35.48 0.00 118,975.81

3.002018 0.00 0.00 0.00 1,929.68 0.00 24,525.22 35.48 0.00 129,499.01

3.002019 0.00 0.00 0.00 1,968.25 0.00 25,018.69 35.48 0.00 139,217.07

3.002020 0.00 0.00 0.00 2,007.68 0.00 24,067.41 35.58 0.00 147,678.83

3.002021 0.00 0.00 0.00 1,864.06 0.00 22,205.35 32.28 0.00 154,776.76

0.002022 0.00 0.00 740.75 0.00 0.00 -740.75 0.00 0.00 154,563.33

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 9,788.79 21,905.57 0.00 270,037.67 422.90

0.00 0.00

0.00

0.00

154,563.33

0.00 0.00

82.13 6.96

0.00

2,447.82 464,371.24

0.00 0.00 0.00 0.00 0.00 0.00

1,944.89 369,750.00 215.14 40,901.75 17,670.22 284,484.72 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

21.74 / 28.59

0.44

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

201,270.08 154,563.33 122,141.99

20.00% :50.00% :

99,124.29 42,741.51

PW 30,703.9370.00% :

7,451.30

>1000

Hud Eco Detailed.rpt 2

Page 176: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTION

Proved Rsv ClassProducing Rsv Category

03/30/2010 11:17:13AMDate :

94,621.24

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

502.93

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK SUB-TOTAL CASE

Total

69.09 6.67 163.19 31,025.00 18.05 3,431.99 1,247.23 22,887.34 0.002010

71.95 6.92 163.19 31,025.00 18.05 3,431.99 1,298.86 23,740.92 0.002011

74.80 6.39 163.64 31,110.00 18.10 3,441.39 1,354.01 21,992.24 0.002012

77.66 6.61 163.19 31,025.00 18.05 3,431.99 1,401.94 22,690.89 0.002013

80.52 6.83 163.19 31,025.00 18.05 3,431.99 1,453.57 23,453.01 0.002014

82.28 6.97 163.19 31,025.00 18.05 3,431.99 1,485.34 23,920.44 0.002015

84.07 6.98 163.64 31,110.00 18.10 3,441.39 1,521.81 24,009.75 0.002016

85.90 7.12 163.19 31,025.00 18.05 3,431.99 1,550.69 24,421.75 0.002017

87.76 7.26 163.19 31,025.00 18.05 3,431.99 1,584.26 24,906.12 0.002018

89.65 7.40 163.19 31,025.00 18.05 3,431.99 1,618.38 25,404.04 0.002019

90.54 7.11 163.64 31,110.00 18.10 3,441.39 1,639.00 24,471.67 0.002020

92.27 7.24 148.44 28,220.00 16.42 3,121.70 1,515.14 22,586.55 0.002021

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002022

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

3.002010 0.00 0.00 1,723.51 1,646.96 0.00 20,728.61 35.48 0.00 19,728.69

3.002011 0.00 0.00 1,080.83 1,679.88 0.00 22,243.58 35.48 0.00 38,893.92

3.002012 0.00 0.00 3,506.68 1,713.53 0.00 18,090.45 35.58 0.00 53,002.57

3.002013 0.00 0.00 2,723.18 1,747.80 0.00 19,586.36 35.48 0.00 66,828.73

3.002014 0.00 0.00 13.82 1,782.73 0.00 23,074.54 35.48 0.00 81,574.45

3.002015 0.00 0.00 0.00 1,818.36 0.00 23,551.94 35.48 0.00 95,199.55

3.002016 0.00 0.00 0.00 1,854.78 0.00 23,641.20 35.58 0.00 107,579.06

3.002017 0.00 0.00 0.00 1,891.87 0.00 24,045.08 35.48 0.00 118,975.81

3.002018 0.00 0.00 0.00 1,929.68 0.00 24,525.22 35.48 0.00 129,499.01

3.002019 0.00 0.00 0.00 1,968.25 0.00 25,018.69 35.48 0.00 139,217.07

3.002020 0.00 0.00 0.00 2,007.68 0.00 24,067.41 35.58 0.00 147,678.83

3.002021 0.00 0.00 0.00 1,864.06 0.00 22,205.35 32.28 0.00 154,776.76

0.002022 0.00 0.00 740.75 0.00 0.00 -740.75 0.00 0.00 154,563.33

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 9,788.79 21,905.57 0.00 270,037.67 422.90

0.00 0.00

0.00

0.00

154,563.33

0.00 0.00

82.13 6.96

0.00

2,447.82 464,371.24

0.00 0.00 0.00 0.00 0.00 0.00

1,944.89 369,750.00 215.14 40,901.75 17,670.22 284,484.72 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

21.74 / 28.59

0.44

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

201,270.08 154,563.33 122,141.99

20.00% :50.00% :

99,124.29 42,741.51

PW 30,703.9370.00% :

7,451.30

>1000

Hud Eco Detailed.rpt 3

Page 177: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTION

Probable Rsv Class

03/30/2010 11:17:13AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK SUB-TOTAL CASE

Total

69.09 6.67 23.04 4,380.00 2.55 484.52 176.08 3,231.15 0.002010

71.95 6.92 30.72 5,840.00 3.40 646.02 244.49 4,468.88 0.002011

74.80 6.39 38.40 7,300.00 4.25 807.53 317.72 5,160.51 0.002012

77.66 6.61 48.00 9,125.00 5.31 1,009.41 412.34 6,673.79 0.002013

80.52 6.83 57.60 10,950.00 6.37 1,211.29 513.03 8,277.53 0.002014

82.28 6.97 69.12 13,140.00 7.65 1,453.55 629.08 10,131.01 0.002015

84.07 6.98 80.64 15,330.00 8.92 1,695.80 749.90 11,831.23 0.002016

85.90 7.12 88.32 16,790.00 9.77 1,857.31 839.20 13,216.48 0.002017

87.76 7.26 92.16 17,520.00 10.19 1,938.06 894.65 14,064.63 0.002018

89.65 7.40 96.00 18,250.00 10.62 2,018.82 951.99 14,943.55 0.002019

90.54 7.11 96.00 18,250.00 10.62 2,018.82 961.46 14,355.77 0.002020

92.47 7.24 110.75 21,055.00 12.25 2,329.10 1,132.84 16,851.87 0.002021

94.20 7.36 259.19 49,275.00 28.67 5,450.80 2,700.88 40,127.02 0.002022

96.08 7.49 259.19 49,275.00 28.67 5,450.80 2,754.86 40,831.76 0.002023

98.01 7.62 259.90 49,410.00 28.75 5,465.73 2,817.69 41,661.08 0.002024

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

2.002010 0.00 0.00 0.00 0.00 0.00 3,402.23 5.01 0.00 3,238.85

2.002011 0.00 0.00 0.00 0.00 0.00 4,706.69 6.68 0.00 7,295.07

2.002012 0.00 0.00 2,656.58 0.00 0.00 2,813.30 8.35 0.00 9,489.70

2.002013 0.00 0.00 1,829.00 0.00 0.00 5,246.69 10.44 0.00 13,194.42

2.002014 0.00 0.00 0.00 0.00 0.00 8,778.04 12.52 0.00 18,805.24

2.002015 0.00 0.00 0.00 0.00 0.00 10,745.06 15.03 0.00 25,022.78

2.002016 0.00 0.00 0.00 0.00 0.00 12,563.59 17.53 0.00 31,602.32

2.002017 0.00 0.00 0.00 0.00 0.00 14,036.47 19.20 0.00 38,256.73

2.002018 0.00 0.00 0.00 0.00 0.00 14,939.24 20.04 0.00 44,668.23

2.002019 0.00 0.00 0.00 0.00 0.00 15,874.67 20.87 0.00 50,835.83

2.002020 0.00 0.00 0.00 0.00 0.00 15,296.36 20.87 0.00 56,214.41

2.002021 0.00 0.00 0.00 183.68 0.00 17,776.96 24.08 0.00 61,839.79

2.002022 0.00 0.00 0.00 2,088.75 0.00 40,682.80 56.36 0.00 73,560.22

2.002023 0.00 0.00 0.00 2,130.50 0.00 41,399.77 56.36 0.00 84,357.42

2.002024 0.00 0.00 0.00 2,173.17 0.00 42,249.09 56.51 0.00 94,330.97

Rem.

Total

0.00 0.00 98.69 16,240.87 0.00 312,047.75

0.00 0.00 4,584.27 22,816.96 0.00 562,558.70 739.12

389.26 0.00

0.00

50,321.10

144,652.08

106.07 8.18

98.67 7.74

0.00

3,399.15 646,225.00

1,790.16 340,335.00 198.03 37,647.86 21,004.16 307,772.41

3,399.15 646,225.00 376.01 71,485.41 37,100.38 553,598.67 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

43.88 / 123.71

1.25

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

275,081.46 144,652.08

82,376.8820.00% :50.00% :

50,901.07 10,149.97

PW 6,261.4970.00% :

3,373.46

>1000

Hud Eco Detailed.rpt 4

Page 178: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTION

Probable Rsv ClassUndeveloped Rsv Category

03/30/2010 11:17:13AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK SUB-TOTAL CASE

Total

69.09 6.67 23.04 4,380.00 2.55 484.52 176.08 3,231.15 0.002010

71.95 6.92 30.72 5,840.00 3.40 646.02 244.49 4,468.88 0.002011

74.80 6.39 38.40 7,300.00 4.25 807.53 317.72 5,160.51 0.002012

77.66 6.61 48.00 9,125.00 5.31 1,009.41 412.34 6,673.79 0.002013

80.52 6.83 57.60 10,950.00 6.37 1,211.29 513.03 8,277.53 0.002014

82.28 6.97 69.12 13,140.00 7.65 1,453.55 629.08 10,131.01 0.002015

84.07 6.98 80.64 15,330.00 8.92 1,695.80 749.90 11,831.23 0.002016

85.90 7.12 88.32 16,790.00 9.77 1,857.31 839.20 13,216.48 0.002017

87.76 7.26 92.16 17,520.00 10.19 1,938.06 894.65 14,064.63 0.002018

89.65 7.40 96.00 18,250.00 10.62 2,018.82 951.99 14,943.55 0.002019

90.54 7.11 96.00 18,250.00 10.62 2,018.82 961.46 14,355.77 0.002020

92.47 7.24 110.75 21,055.00 12.25 2,329.10 1,132.84 16,851.87 0.002021

94.20 7.36 259.19 49,275.00 28.67 5,450.80 2,700.88 40,127.02 0.002022

96.08 7.49 259.19 49,275.00 28.67 5,450.80 2,754.86 40,831.76 0.002023

98.01 7.62 259.90 49,410.00 28.75 5,465.73 2,817.69 41,661.08 0.002024

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

2.002010 0.00 0.00 0.00 0.00 0.00 3,402.23 5.01 0.00 3,238.85

2.002011 0.00 0.00 0.00 0.00 0.00 4,706.69 6.68 0.00 7,295.07

2.002012 0.00 0.00 2,656.58 0.00 0.00 2,813.30 8.35 0.00 9,489.70

2.002013 0.00 0.00 1,829.00 0.00 0.00 5,246.69 10.44 0.00 13,194.42

2.002014 0.00 0.00 0.00 0.00 0.00 8,778.04 12.52 0.00 18,805.24

2.002015 0.00 0.00 0.00 0.00 0.00 10,745.06 15.03 0.00 25,022.78

2.002016 0.00 0.00 0.00 0.00 0.00 12,563.59 17.53 0.00 31,602.32

2.002017 0.00 0.00 0.00 0.00 0.00 14,036.47 19.20 0.00 38,256.73

2.002018 0.00 0.00 0.00 0.00 0.00 14,939.24 20.04 0.00 44,668.23

2.002019 0.00 0.00 0.00 0.00 0.00 15,874.67 20.87 0.00 50,835.83

2.002020 0.00 0.00 0.00 0.00 0.00 15,296.36 20.87 0.00 56,214.41

2.002021 0.00 0.00 0.00 183.68 0.00 17,776.96 24.08 0.00 61,839.79

2.002022 0.00 0.00 0.00 2,088.75 0.00 40,682.80 56.36 0.00 73,560.22

2.002023 0.00 0.00 0.00 2,130.50 0.00 41,399.77 56.36 0.00 84,357.42

2.002024 0.00 0.00 0.00 2,173.17 0.00 42,249.09 56.51 0.00 94,330.97

Rem.

Total

0.00 0.00 98.69 16,240.87 0.00 312,047.75

0.00 0.00 4,584.27 22,816.96 0.00 562,558.70 739.12

389.26 0.00

0.00

50,321.10

144,652.08

106.07 8.18

98.67 7.74

0.00

3,399.15 646,225.00

1,790.16 340,335.00 198.03 37,647.86 21,004.16 307,772.41

3,399.15 646,225.00 376.01 71,485.41 37,100.38 553,598.67 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

43.88 / 123.71

1.25

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

275,081.46 144,652.08

82,376.8820.00% :50.00% :

50,901.07 10,149.97

PW 6,261.4970.00% :

3,373.46

>1000

Hud Eco Detailed.rpt 5

Page 179: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONONSHORE LOCATION

03/30/2010 11:17:13AMDate :

94,621.24

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

502.93

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

69.09 6.67 186.23 35,405.00 20.60 3,916.50 1,423.31 26,118.50 0.002010

71.95 6.92 193.91 36,865.00 21.45 4,078.01 1,543.35 28,209.80 0.002011

74.80 6.39 202.04 38,410.00 22.35 4,248.91 1,671.73 27,152.75 0.002012

77.66 6.61 211.19 40,150.00 23.36 4,441.39 1,814.28 29,364.68 0.002013

80.52 6.83 220.79 41,975.00 24.42 4,643.27 1,966.60 31,730.54 0.002014

82.28 6.97 232.31 44,165.00 25.70 4,885.53 2,114.42 34,051.45 0.002015

84.07 6.98 244.27 46,440.00 27.02 5,137.19 2,271.71 35,840.98 0.002016

85.90 7.12 251.51 47,815.00 27.82 5,289.30 2,389.89 37,638.22 0.002017

87.76 7.26 255.35 48,545.00 28.25 5,370.05 2,478.92 38,970.75 0.002018

89.65 7.40 259.19 49,275.00 28.67 5,450.80 2,570.37 40,347.59 0.002019

90.54 7.11 259.63 49,360.00 28.72 5,460.20 2,600.46 38,827.45 0.002020

92.36 7.24 259.19 49,275.00 28.67 5,450.80 2,647.98 39,438.42 0.002021

94.20 7.36 259.19 49,275.00 28.67 5,450.80 2,700.88 40,127.02 0.002022

96.08 7.49 259.19 49,275.00 28.67 5,450.80 2,754.86 40,831.76 0.002023

98.01 7.62 259.90 49,410.00 28.75 5,465.73 2,817.69 41,661.08 0.002024

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

5.002010 0.00 0.00 1,723.51 1,646.96 0.00 24,130.84 40.49 0.00 22,967.54

5.002011 0.00 0.00 1,080.83 1,679.88 0.00 26,950.27 42.16 0.00 46,189.00

5.002012 0.00 0.00 6,163.26 1,713.53 0.00 20,903.75 43.93 0.00 62,492.27

5.002013 0.00 0.00 4,552.19 1,747.80 0.00 24,833.05 45.92 0.00 80,023.15

5.002014 0.00 0.00 13.82 1,782.73 0.00 31,852.58 48.01 0.00 100,379.70

5.002015 0.00 0.00 0.00 1,818.36 0.00 34,297.00 50.51 0.00 120,222.34

5.002016 0.00 0.00 0.00 1,854.78 0.00 36,204.79 53.12 0.00 139,181.38

5.002017 0.00 0.00 0.00 1,891.87 0.00 38,081.55 54.69 0.00 157,232.54

5.002018 0.00 0.00 0.00 1,929.68 0.00 39,464.46 55.52 0.00 174,167.25

5.002019 0.00 0.00 0.00 1,968.25 0.00 40,893.36 56.36 0.00 190,052.91

5.002020 0.00 0.00 0.00 2,007.68 0.00 39,363.77 56.46 0.00 203,893.24

5.002021 0.00 0.00 0.00 2,047.73 0.00 39,982.31 56.36 0.00 216,616.55

2.002022 0.00 0.00 740.75 2,088.75 0.00 39,942.04 56.36 0.00 228,123.56

2.002023 0.00 0.00 0.00 2,130.50 0.00 41,399.77 56.36 0.00 238,920.75

2.002024 0.00 0.00 0.00 2,173.17 0.00 42,249.09 56.51 0.00 248,894.31

Rem.

Total

0.00 0.00 98.69 16,240.87 0.00 312,047.75

0.00 0.00 14,373.06 44,722.54 0.00 832,596.37 1,162.02

389.26 0.00

0.00

50,321.10

299,215.41

106.07 8.18

92.65 7.46

0.00

5,846.96 1,110,596.24

1,790.16 340,335.00 198.03 37,647.86 21,004.16 307,772.41

5,344.03 1,015,975.00 591.16 112,387.15 54,770.60 838,083.39 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

28.64 / 58.93

0.56

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

476,351.54 299,215.41 204,518.87

20.00% :50.00% :

150,025.36 52,891.48

PW 36,965.4270.00% :

10,824.76

>1000

Hud Eco Detailed.rpt 6

Page 180: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONONSHORE LOCATION

SINPHUHORM Field

03/30/2010 11:17:13AMDate :

94,621.24

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

502.93

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

69.09 6.67 186.23 35,405.00 20.60 3,916.50 1,423.31 26,118.50 0.002010

71.95 6.92 193.91 36,865.00 21.45 4,078.01 1,543.35 28,209.80 0.002011

74.80 6.39 202.04 38,410.00 22.35 4,248.91 1,671.73 27,152.75 0.002012

77.66 6.61 211.19 40,150.00 23.36 4,441.39 1,814.28 29,364.68 0.002013

80.52 6.83 220.79 41,975.00 24.42 4,643.27 1,966.60 31,730.54 0.002014

82.28 6.97 232.31 44,165.00 25.70 4,885.53 2,114.42 34,051.45 0.002015

84.07 6.98 244.27 46,440.00 27.02 5,137.19 2,271.71 35,840.98 0.002016

85.90 7.12 251.51 47,815.00 27.82 5,289.30 2,389.89 37,638.22 0.002017

87.76 7.26 255.35 48,545.00 28.25 5,370.05 2,478.92 38,970.75 0.002018

89.65 7.40 259.19 49,275.00 28.67 5,450.80 2,570.37 40,347.59 0.002019

90.54 7.11 259.63 49,360.00 28.72 5,460.20 2,600.46 38,827.45 0.002020

92.36 7.24 259.19 49,275.00 28.67 5,450.80 2,647.98 39,438.42 0.002021

94.20 7.36 259.19 49,275.00 28.67 5,450.80 2,700.88 40,127.02 0.002022

96.08 7.49 259.19 49,275.00 28.67 5,450.80 2,754.86 40,831.76 0.002023

98.01 7.62 259.90 49,410.00 28.75 5,465.73 2,817.69 41,661.08 0.002024

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

5.002010 0.00 0.00 1,723.51 1,646.96 0.00 24,130.84 40.49 0.00 22,967.54

5.002011 0.00 0.00 1,080.83 1,679.88 0.00 26,950.27 42.16 0.00 46,189.00

5.002012 0.00 0.00 6,163.26 1,713.53 0.00 20,903.75 43.93 0.00 62,492.27

5.002013 0.00 0.00 4,552.19 1,747.80 0.00 24,833.05 45.92 0.00 80,023.15

5.002014 0.00 0.00 13.82 1,782.73 0.00 31,852.58 48.01 0.00 100,379.70

5.002015 0.00 0.00 0.00 1,818.36 0.00 34,297.00 50.51 0.00 120,222.34

5.002016 0.00 0.00 0.00 1,854.78 0.00 36,204.79 53.12 0.00 139,181.38

5.002017 0.00 0.00 0.00 1,891.87 0.00 38,081.55 54.69 0.00 157,232.54

5.002018 0.00 0.00 0.00 1,929.68 0.00 39,464.46 55.52 0.00 174,167.25

5.002019 0.00 0.00 0.00 1,968.25 0.00 40,893.36 56.36 0.00 190,052.91

5.002020 0.00 0.00 0.00 2,007.68 0.00 39,363.77 56.46 0.00 203,893.24

5.002021 0.00 0.00 0.00 2,047.73 0.00 39,982.31 56.36 0.00 216,616.55

2.002022 0.00 0.00 740.75 2,088.75 0.00 39,942.04 56.36 0.00 228,123.56

2.002023 0.00 0.00 0.00 2,130.50 0.00 41,399.77 56.36 0.00 238,920.75

2.002024 0.00 0.00 0.00 2,173.17 0.00 42,249.09 56.51 0.00 248,894.31

Rem.

Total

0.00 0.00 98.69 16,240.87 0.00 312,047.75

0.00 0.00 14,373.06 44,722.54 0.00 832,596.37 1,162.02

389.26 0.00

0.00

50,321.10

299,215.41

106.07 8.18

92.65 7.46

0.00

5,846.96 1,110,596.24

1,790.16 340,335.00 198.03 37,647.86 21,004.16 307,772.41

5,344.03 1,015,975.00 591.16 112,387.15 54,770.60 838,083.39 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

28.64 / 58.93

0.56

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

476,351.54 299,215.41 204,518.87

20.00% :50.00% :

150,025.36 52,891.48

PW 36,965.4270.00% :

10,824.76

>1000

Hud Eco Detailed.rpt 7

Page 181: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONONSHORE LOCATION

SINPHUHORM FieldProved Rsv Class

03/30/2010 11:17:13AMDate :

94,621.24

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

502.93

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

69.09 6.67 163.19 31,025.00 18.05 3,431.99 1,247.23 22,887.34 0.002010

71.95 6.92 163.19 31,025.00 18.05 3,431.99 1,298.86 23,740.92 0.002011

74.80 6.39 163.64 31,110.00 18.10 3,441.39 1,354.01 21,992.24 0.002012

77.66 6.61 163.19 31,025.00 18.05 3,431.99 1,401.94 22,690.89 0.002013

80.52 6.83 163.19 31,025.00 18.05 3,431.99 1,453.57 23,453.01 0.002014

82.28 6.97 163.19 31,025.00 18.05 3,431.99 1,485.34 23,920.44 0.002015

84.07 6.98 163.64 31,110.00 18.10 3,441.39 1,521.81 24,009.75 0.002016

85.90 7.12 163.19 31,025.00 18.05 3,431.99 1,550.69 24,421.75 0.002017

87.76 7.26 163.19 31,025.00 18.05 3,431.99 1,584.26 24,906.12 0.002018

89.65 7.40 163.19 31,025.00 18.05 3,431.99 1,618.38 25,404.04 0.002019

90.54 7.11 163.64 31,110.00 18.10 3,441.39 1,639.00 24,471.67 0.002020

92.27 7.24 148.44 28,220.00 16.42 3,121.70 1,515.14 22,586.55 0.002021

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002022

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

3.002010 0.00 0.00 1,723.51 1,646.96 0.00 20,728.61 35.48 0.00 19,728.69

3.002011 0.00 0.00 1,080.83 1,679.88 0.00 22,243.58 35.48 0.00 38,893.92

3.002012 0.00 0.00 3,506.68 1,713.53 0.00 18,090.45 35.58 0.00 53,002.57

3.002013 0.00 0.00 2,723.18 1,747.80 0.00 19,586.36 35.48 0.00 66,828.73

3.002014 0.00 0.00 13.82 1,782.73 0.00 23,074.54 35.48 0.00 81,574.45

3.002015 0.00 0.00 0.00 1,818.36 0.00 23,551.94 35.48 0.00 95,199.55

3.002016 0.00 0.00 0.00 1,854.78 0.00 23,641.20 35.58 0.00 107,579.06

3.002017 0.00 0.00 0.00 1,891.87 0.00 24,045.08 35.48 0.00 118,975.81

3.002018 0.00 0.00 0.00 1,929.68 0.00 24,525.22 35.48 0.00 129,499.01

3.002019 0.00 0.00 0.00 1,968.25 0.00 25,018.69 35.48 0.00 139,217.07

3.002020 0.00 0.00 0.00 2,007.68 0.00 24,067.41 35.58 0.00 147,678.83

3.002021 0.00 0.00 0.00 1,864.06 0.00 22,205.35 32.28 0.00 154,776.76

0.002022 0.00 0.00 740.75 0.00 0.00 -740.75 0.00 0.00 154,563.33

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 9,788.79 21,905.57 0.00 270,037.67 422.90

0.00 0.00

0.00

0.00

154,563.33

0.00 0.00

82.13 6.96

0.00

2,447.82 464,371.24

0.00 0.00 0.00 0.00 0.00 0.00

1,944.89 369,750.00 215.14 40,901.75 17,670.22 284,484.72 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

21.74 / 28.59

0.44

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

201,270.08 154,563.33 122,141.99

20.00% :50.00% :

99,124.29 42,741.51

PW 30,703.9370.00% :

7,451.30

>1000

Hud Eco Detailed.rpt 8

Page 182: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONONSHORE LOCATION

SINPHUHORM FieldProved Rsv Class

Producing Rsv Category

03/30/2010 11:17:13AMDate :

94,621.24

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

502.93

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

69.09 6.67 163.19 31,025.00 18.05 3,431.99 1,247.23 22,887.34 0.002010

71.95 6.92 163.19 31,025.00 18.05 3,431.99 1,298.86 23,740.92 0.002011

74.80 6.39 163.64 31,110.00 18.10 3,441.39 1,354.01 21,992.24 0.002012

77.66 6.61 163.19 31,025.00 18.05 3,431.99 1,401.94 22,690.89 0.002013

80.52 6.83 163.19 31,025.00 18.05 3,431.99 1,453.57 23,453.01 0.002014

82.28 6.97 163.19 31,025.00 18.05 3,431.99 1,485.34 23,920.44 0.002015

84.07 6.98 163.64 31,110.00 18.10 3,441.39 1,521.81 24,009.75 0.002016

85.90 7.12 163.19 31,025.00 18.05 3,431.99 1,550.69 24,421.75 0.002017

87.76 7.26 163.19 31,025.00 18.05 3,431.99 1,584.26 24,906.12 0.002018

89.65 7.40 163.19 31,025.00 18.05 3,431.99 1,618.38 25,404.04 0.002019

90.54 7.11 163.64 31,110.00 18.10 3,441.39 1,639.00 24,471.67 0.002020

92.27 7.24 148.44 28,220.00 16.42 3,121.70 1,515.14 22,586.55 0.002021

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002022

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

3.002010 0.00 0.00 1,723.51 1,646.96 0.00 20,728.61 35.48 0.00 19,728.69

3.002011 0.00 0.00 1,080.83 1,679.88 0.00 22,243.58 35.48 0.00 38,893.92

3.002012 0.00 0.00 3,506.68 1,713.53 0.00 18,090.45 35.58 0.00 53,002.57

3.002013 0.00 0.00 2,723.18 1,747.80 0.00 19,586.36 35.48 0.00 66,828.73

3.002014 0.00 0.00 13.82 1,782.73 0.00 23,074.54 35.48 0.00 81,574.45

3.002015 0.00 0.00 0.00 1,818.36 0.00 23,551.94 35.48 0.00 95,199.55

3.002016 0.00 0.00 0.00 1,854.78 0.00 23,641.20 35.58 0.00 107,579.06

3.002017 0.00 0.00 0.00 1,891.87 0.00 24,045.08 35.48 0.00 118,975.81

3.002018 0.00 0.00 0.00 1,929.68 0.00 24,525.22 35.48 0.00 129,499.01

3.002019 0.00 0.00 0.00 1,968.25 0.00 25,018.69 35.48 0.00 139,217.07

3.002020 0.00 0.00 0.00 2,007.68 0.00 24,067.41 35.58 0.00 147,678.83

3.002021 0.00 0.00 0.00 1,864.06 0.00 22,205.35 32.28 0.00 154,776.76

0.002022 0.00 0.00 740.75 0.00 0.00 -740.75 0.00 0.00 154,563.33

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 9,788.79 21,905.57 0.00 270,037.67 422.90

0.00 0.00

0.00

0.00

154,563.33

0.00 0.00

82.13 6.96

0.00

2,447.82 464,371.24

0.00 0.00 0.00 0.00 0.00 0.00

1,944.89 369,750.00 215.14 40,901.75 17,670.22 284,484.72 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

21.74 / 28.59

0.44

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

201,270.08 154,563.33 122,141.99

20.00% :50.00% :

99,124.29 42,741.51

PW 30,703.9370.00% :

7,451.30

>1000

Hud Eco Detailed.rpt 9

Page 183: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Producing

SINPHUHORM

HESSPHA NOK KHAO

BLOCK EU1/E5N, ONSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:17:13AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

502.93

94,621.24

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SINPHUHORM - PDP CASE12/31/2009

69.09 6.67 163.19 31,025.00 18.05 3,431.99 1,247.23 22,887.34 0.002010

71.95 6.92 163.19 31,025.00 18.05 3,431.99 1,298.86 23,740.92 0.002011

74.80 6.39 163.64 31,110.00 18.10 3,441.39 1,354.01 21,992.24 0.002012

77.66 6.61 163.19 31,025.00 18.05 3,431.99 1,401.94 22,690.89 0.002013

80.52 6.83 163.19 31,025.00 18.05 3,431.99 1,453.57 23,453.01 0.002014

82.28 6.97 163.19 31,025.00 18.05 3,431.99 1,485.34 23,920.44 0.002015

84.07 6.98 163.64 31,110.00 18.10 3,441.39 1,521.81 24,009.75 0.002016

85.90 7.12 163.19 31,025.00 18.05 3,431.99 1,550.69 24,421.75 0.002017

87.76 7.26 163.19 31,025.00 18.05 3,431.99 1,584.26 24,906.12 0.002018

89.65 7.40 163.19 31,025.00 18.05 3,431.99 1,618.38 25,404.04 0.002019

90.54 7.11 163.64 31,110.00 18.10 3,441.39 1,639.00 24,471.67 0.002020

92.27 7.24 148.44 28,220.00 16.42 3,121.70 1,515.14 22,586.55 0.002021

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002022

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

3.002010 0.00 0.00 1,723.51 1,646.96 0.00 20,728.61 35.48 0.00 19,728.69

3.002011 0.00 0.00 1,080.83 1,679.88 0.00 22,243.58 35.48 0.00 38,893.92

3.002012 0.00 0.00 3,506.68 1,713.53 0.00 18,090.45 35.58 0.00 53,002.57

3.002013 0.00 0.00 2,723.18 1,747.80 0.00 19,586.36 35.48 0.00 66,828.73

3.002014 0.00 0.00 13.82 1,782.73 0.00 23,074.54 35.48 0.00 81,574.45

3.002015 0.00 0.00 0.00 1,818.36 0.00 23,551.94 35.48 0.00 95,199.55

3.002016 0.00 0.00 0.00 1,854.78 0.00 23,641.20 35.58 0.00 107,579.06

3.002017 0.00 0.00 0.00 1,891.87 0.00 24,045.08 35.48 0.00 118,975.81

3.002018 0.00 0.00 0.00 1,929.68 0.00 24,525.22 35.48 0.00 129,499.01

3.002019 0.00 0.00 0.00 1,968.25 0.00 25,018.69 35.48 0.00 139,217.07

3.002020 0.00 0.00 0.00 2,007.68 0.00 24,067.41 35.58 0.00 147,678.83

3.002021 0.00 0.00 0.00 1,864.06 0.00 22,205.35 32.28 0.00 154,776.76

0.002022 0.00 0.00 740.75 0.00 0.00 -740.75 0.00 0.00 154,563.33

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 9,788.79 21,905.57 0.00 270,037.67 422.90

0.00 0.00

0.00

0.00

154,563.33

0.00 0.00

82.13 6.96

0.00

2,447.82 464,371.24

0.00 0.00 0.00 0.00 0.00 0.00

1,944.89 369,750.00 215.14 40,901.75 17,670.22 284,484.72 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Gas

0 - 0

0.00

Mcf/monthMcf/month

% year b = 0.000

0.005

0.005

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

0.12642000

0.11062000

11/28/2021

21.75 / 28.59

0.44

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

201,270.08 154,563.33 122,141.99

20.00% :50.00% :

99,124.29 42,741.51

PW 30,703.9370.00% :

7,451.30

2,585,416.67 2,585,416.67

>1000

Hud Eco Detailed.rpt 10

Page 184: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONONSHORE LOCATION

SINPHUHORM FieldProbable Rsv Class

03/30/2010 11:17:13AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

69.09 6.67 23.04 4,380.00 2.55 484.52 176.08 3,231.15 0.002010

71.95 6.92 30.72 5,840.00 3.40 646.02 244.49 4,468.88 0.002011

74.80 6.39 38.40 7,300.00 4.25 807.53 317.72 5,160.51 0.002012

77.66 6.61 48.00 9,125.00 5.31 1,009.41 412.34 6,673.79 0.002013

80.52 6.83 57.60 10,950.00 6.37 1,211.29 513.03 8,277.53 0.002014

82.28 6.97 69.12 13,140.00 7.65 1,453.55 629.08 10,131.01 0.002015

84.07 6.98 80.64 15,330.00 8.92 1,695.80 749.90 11,831.23 0.002016

85.90 7.12 88.32 16,790.00 9.77 1,857.31 839.20 13,216.48 0.002017

87.76 7.26 92.16 17,520.00 10.19 1,938.06 894.65 14,064.63 0.002018

89.65 7.40 96.00 18,250.00 10.62 2,018.82 951.99 14,943.55 0.002019

90.54 7.11 96.00 18,250.00 10.62 2,018.82 961.46 14,355.77 0.002020

92.47 7.24 110.75 21,055.00 12.25 2,329.10 1,132.84 16,851.87 0.002021

94.20 7.36 259.19 49,275.00 28.67 5,450.80 2,700.88 40,127.02 0.002022

96.08 7.49 259.19 49,275.00 28.67 5,450.80 2,754.86 40,831.76 0.002023

98.01 7.62 259.90 49,410.00 28.75 5,465.73 2,817.69 41,661.08 0.002024

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

2.002010 0.00 0.00 0.00 0.00 0.00 3,402.23 5.01 0.00 3,238.85

2.002011 0.00 0.00 0.00 0.00 0.00 4,706.69 6.68 0.00 7,295.07

2.002012 0.00 0.00 2,656.58 0.00 0.00 2,813.30 8.35 0.00 9,489.70

2.002013 0.00 0.00 1,829.00 0.00 0.00 5,246.69 10.44 0.00 13,194.42

2.002014 0.00 0.00 0.00 0.00 0.00 8,778.04 12.52 0.00 18,805.24

2.002015 0.00 0.00 0.00 0.00 0.00 10,745.06 15.03 0.00 25,022.78

2.002016 0.00 0.00 0.00 0.00 0.00 12,563.59 17.53 0.00 31,602.32

2.002017 0.00 0.00 0.00 0.00 0.00 14,036.47 19.20 0.00 38,256.73

2.002018 0.00 0.00 0.00 0.00 0.00 14,939.24 20.04 0.00 44,668.23

2.002019 0.00 0.00 0.00 0.00 0.00 15,874.67 20.87 0.00 50,835.83

2.002020 0.00 0.00 0.00 0.00 0.00 15,296.36 20.87 0.00 56,214.41

2.002021 0.00 0.00 0.00 183.68 0.00 17,776.96 24.08 0.00 61,839.79

2.002022 0.00 0.00 0.00 2,088.75 0.00 40,682.80 56.36 0.00 73,560.22

2.002023 0.00 0.00 0.00 2,130.50 0.00 41,399.77 56.36 0.00 84,357.42

2.002024 0.00 0.00 0.00 2,173.17 0.00 42,249.09 56.51 0.00 94,330.97

Rem.

Total

0.00 0.00 98.69 16,240.87 0.00 312,047.75

0.00 0.00 4,584.27 22,816.96 0.00 562,558.70 739.12

389.26 0.00

0.00

50,321.10

144,652.08

106.07 8.18

98.67 7.74

0.00

3,399.15 646,225.00

1,790.16 340,335.00 198.03 37,647.86 21,004.16 307,772.41

3,399.15 646,225.00 376.01 71,485.41 37,100.38 553,598.67 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

43.88 / 123.71

1.25

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

275,081.46 144,652.08

82,376.8820.00% :50.00% :

50,901.07 10,149.97

PW 6,261.4970.00% :

3,373.46

>1000

Hud Eco Detailed.rpt 11

Page 185: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONONSHORE LOCATION

SINPHUHORM FieldProbable Rsv Class

Undeveloped Rsv Category

03/30/2010 11:17:13AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

69.09 6.67 23.04 4,380.00 2.55 484.52 176.08 3,231.15 0.002010

71.95 6.92 30.72 5,840.00 3.40 646.02 244.49 4,468.88 0.002011

74.80 6.39 38.40 7,300.00 4.25 807.53 317.72 5,160.51 0.002012

77.66 6.61 48.00 9,125.00 5.31 1,009.41 412.34 6,673.79 0.002013

80.52 6.83 57.60 10,950.00 6.37 1,211.29 513.03 8,277.53 0.002014

82.28 6.97 69.12 13,140.00 7.65 1,453.55 629.08 10,131.01 0.002015

84.07 6.98 80.64 15,330.00 8.92 1,695.80 749.90 11,831.23 0.002016

85.90 7.12 88.32 16,790.00 9.77 1,857.31 839.20 13,216.48 0.002017

87.76 7.26 92.16 17,520.00 10.19 1,938.06 894.65 14,064.63 0.002018

89.65 7.40 96.00 18,250.00 10.62 2,018.82 951.99 14,943.55 0.002019

90.54 7.11 96.00 18,250.00 10.62 2,018.82 961.46 14,355.77 0.002020

92.47 7.24 110.75 21,055.00 12.25 2,329.10 1,132.84 16,851.87 0.002021

94.20 7.36 259.19 49,275.00 28.67 5,450.80 2,700.88 40,127.02 0.002022

96.08 7.49 259.19 49,275.00 28.67 5,450.80 2,754.86 40,831.76 0.002023

98.01 7.62 259.90 49,410.00 28.75 5,465.73 2,817.69 41,661.08 0.002024

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

2.002010 0.00 0.00 0.00 0.00 0.00 3,402.23 5.01 0.00 3,238.85

2.002011 0.00 0.00 0.00 0.00 0.00 4,706.69 6.68 0.00 7,295.07

2.002012 0.00 0.00 2,656.58 0.00 0.00 2,813.30 8.35 0.00 9,489.70

2.002013 0.00 0.00 1,829.00 0.00 0.00 5,246.69 10.44 0.00 13,194.42

2.002014 0.00 0.00 0.00 0.00 0.00 8,778.04 12.52 0.00 18,805.24

2.002015 0.00 0.00 0.00 0.00 0.00 10,745.06 15.03 0.00 25,022.78

2.002016 0.00 0.00 0.00 0.00 0.00 12,563.59 17.53 0.00 31,602.32

2.002017 0.00 0.00 0.00 0.00 0.00 14,036.47 19.20 0.00 38,256.73

2.002018 0.00 0.00 0.00 0.00 0.00 14,939.24 20.04 0.00 44,668.23

2.002019 0.00 0.00 0.00 0.00 0.00 15,874.67 20.87 0.00 50,835.83

2.002020 0.00 0.00 0.00 0.00 0.00 15,296.36 20.87 0.00 56,214.41

2.002021 0.00 0.00 0.00 183.68 0.00 17,776.96 24.08 0.00 61,839.79

2.002022 0.00 0.00 0.00 2,088.75 0.00 40,682.80 56.36 0.00 73,560.22

2.002023 0.00 0.00 0.00 2,130.50 0.00 41,399.77 56.36 0.00 84,357.42

2.002024 0.00 0.00 0.00 2,173.17 0.00 42,249.09 56.51 0.00 94,330.97

Rem.

Total

0.00 0.00 98.69 16,240.87 0.00 312,047.75

0.00 0.00 4,584.27 22,816.96 0.00 562,558.70 739.12

389.26 0.00

0.00

50,321.10

144,652.08

106.07 8.18

98.67 7.74

0.00

3,399.15 646,225.00

1,790.16 340,335.00 198.03 37,647.86 21,004.16 307,772.41

3,399.15 646,225.00 376.01 71,485.41 37,100.38 553,598.67 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

43.88 / 123.71

1.25

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

275,081.46 144,652.08

82,376.8820.00% :50.00% :

50,901.07 10,149.97

PW 6,261.4970.00% :

3,373.46

>1000

Hud Eco Detailed.rpt 12

Page 186: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Probable Undeveloped

SINPHUHORM

HESSPHA NOK KHAO

BLOCK EU1/E5N, ONSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:17:13AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SINPHUHORM - PTT PROB PRIMARY12/31/2009

69.09 6.67 5.76 1,095.00 0.64 121.13 44.02 807.79 0.002010

71.95 6.92 11.52 2,190.00 1.27 242.26 91.68 1,675.83 0.002011

74.80 6.39 17.28 3,285.00 1.91 363.39 142.97 2,322.23 0.002012

77.66 6.61 23.04 4,380.00 2.55 484.52 197.92 3,203.42 0.002013

80.52 6.83 28.80 5,475.00 3.19 605.64 256.52 4,138.77 0.002014

82.28 6.97 34.56 6,570.00 3.82 726.77 314.54 5,065.51 0.002015

84.07 6.98 40.32 7,665.00 4.46 847.90 374.95 5,915.61 0.002016

85.90 7.12 44.16 8,395.00 4.88 928.65 419.60 6,608.24 0.002017

87.76 7.26 44.16 8,395.00 4.88 928.65 428.69 6,739.30 0.002018

89.65 7.40 44.16 8,395.00 4.88 928.65 437.92 6,874.03 0.002019

90.54 7.11 44.16 8,395.00 4.88 928.65 442.28 6,603.65 0.002020

92.28 7.24 40.17 7,636.00 4.44 844.69 409.99 6,111.65 0.002021

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 850.56 1.25 0.00 809.71

1.002011 0.00 0.00 0.00 0.00 0.00 1,765.01 2.50 0.00 2,330.80

1.002012 0.00 0.00 2,656.58 0.00 0.00 -195.14 3.76 0.00 2,178.93

1.002013 0.00 0.00 1,829.00 0.00 0.00 1,567.33 5.01 0.00 3,285.75

1.002014 0.00 0.00 0.00 0.00 0.00 4,389.02 6.26 0.00 6,091.17

1.002015 0.00 0.00 0.00 0.00 0.00 5,372.53 7.51 0.00 9,199.93

1.002016 0.00 0.00 0.00 0.00 0.00 6,281.80 8.77 0.00 12,489.70

1.002017 0.00 0.00 0.00 0.00 0.00 7,018.24 9.60 0.00 15,816.91

1.002018 0.00 0.00 0.00 0.00 0.00 7,158.39 9.60 0.00 18,889.09

1.002019 0.00 0.00 0.00 0.00 0.00 7,302.35 9.60 0.00 21,726.18

1.002020 0.00 0.00 0.00 0.00 0.00 7,036.33 9.60 0.00 24,200.33

0.002021 0.00 0.00 0.00 0.00 0.00 6,512.91 8.73 0.00 26,281.96

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 4,485.58 0.00 0.00 55,059.31 82.21

0.00 0.00

0.00

0.00

26,281.96

0.00 0.00

85.15 7.05

0.00

378.07 71,876.00

0.00 0.00 0.00 0.00 0.00 0.00

378.07 71,876.00 41.82 7,950.92 3,561.07 56,066.03 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Gas

0 - 0

0.00

Mcf/monthMcf/month

% year b = 0.000

0.005

0.005

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

0.12642000

0.11062000

11/30/2021

8.82 / 13.27

2.76

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

37,649.91 26,281.96 18,747.32

20.00% :50.00% :

13,675.68 3,313.52

PW 1,892.7370.00% :

3,362.96

91,250.00 694,190.00

>1000

Hud Eco Detailed.rpt 13

Page 187: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Probable Undeveloped

SINPHUHORM

HESSPHA NOK KHAO

BLOCK EU1/E5N, ONSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:17:13AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SINPHUHORM - PTT PROB EXTENTION12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002012

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

93.19 7.24 18.75 3,564.00 2.07 394.25 193.25 2,852.53 0.002021

94.20 7.36 207.35 39,420.00 22.94 4,360.64 2,160.71 32,101.62 0.002022

96.08 7.49 207.35 39,420.00 22.94 4,360.64 2,203.89 32,665.41 0.002023

98.01 7.62 207.92 39,528.00 23.00 4,372.59 2,254.15 33,328.87 0.002024

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

0.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002012 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002013 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002014 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002020 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002021 0.00 0.00 0.00 183.68 0.00 2,858.03 4.08 0.00 868.90

1.002022 0.00 0.00 0.00 2,088.75 0.00 32,128.49 45.09 0.00 10,124.89

1.002023 0.00 0.00 0.00 2,130.50 0.00 32,693.72 45.09 0.00 18,651.51

1.002024 0.00 0.00 0.00 2,173.17 0.00 33,364.64 45.21 0.00 26,527.76

Rem.

Total

0.00 0.00 98.69 16,240.87 0.00 246,370.29

0.00 0.00 98.69 22,816.96 0.00 347,415.16 450.87

311.41 0.00

0.00

39,731.46

66,259.21

106.07 8.18

102.96 7.96

0.00

2,073.49 394,200.00

1,432.13 272,268.00 158.42 30,118.29 16,803.33 246,217.93

2,073.49 394,200.00 229.37 43,606.40 23,615.32 347,166.35 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Gas

0 - 0

0.00

Mcf/monthMcf/month

% year b = 0.000

0.005

0.005

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

0.12642000

0.11062000

11/26/2031

6,311.72 / 3,521.32

11.88

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

149,918.69 66,259.21 29,967.97

20.00% :50.00% :

13,853.30 195.31

PW 14.5170.00% :

10.50

3,285,000.00 3,285,000.00

200.00

Hud Eco Detailed.rpt 14

Page 188: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Probable Undeveloped

SINPHUHORM

HESSPHA NOK KHAO

BLOCK EU1/E5N, ONSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:17:13AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SINPHUHORM - CNG PROB PRIMARY12/31/2009

69.09 6.67 17.28 3,285.00 1.91 363.39 132.06 2,423.37 0.002010

71.95 6.92 19.20 3,650.00 2.12 403.76 152.81 2,793.05 0.002011

74.80 6.39 21.12 4,015.00 2.34 444.14 174.75 2,838.28 0.002012

77.66 6.61 24.96 4,745.00 2.76 524.89 214.42 3,470.37 0.002013

80.52 6.83 28.80 5,475.00 3.19 605.64 256.52 4,138.77 0.002014

82.28 6.97 34.56 6,570.00 3.82 726.77 314.54 5,065.51 0.002015

84.07 6.98 40.32 7,665.00 4.46 847.90 374.95 5,915.61 0.002016

85.90 7.12 44.16 8,395.00 4.88 928.65 419.60 6,608.24 0.002017

87.76 7.26 48.00 9,125.00 5.31 1,009.41 465.97 7,325.33 0.002018

89.65 7.40 51.84 9,855.00 5.73 1,090.16 514.07 8,069.52 0.002019

90.54 7.11 51.84 9,855.00 5.73 1,090.16 519.19 7,752.12 0.002020

92.28 7.24 47.15 8,964.00 5.22 991.60 481.30 7,174.55 0.002021

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 2,551.67 3.76 0.00 2,429.13

1.002011 0.00 0.00 0.00 0.00 0.00 2,941.68 4.17 0.00 4,964.28

1.002012 0.00 0.00 0.00 0.00 0.00 3,008.43 4.59 0.00 7,310.77

1.002013 0.00 0.00 0.00 0.00 0.00 3,679.36 5.43 0.00 9,908.66

1.002014 0.00 0.00 0.00 0.00 0.00 4,389.02 6.26 0.00 12,714.08

1.002015 0.00 0.00 0.00 0.00 0.00 5,372.53 7.51 0.00 15,822.85

1.002016 0.00 0.00 0.00 0.00 0.00 6,281.80 8.77 0.00 19,112.62

1.002017 0.00 0.00 0.00 0.00 0.00 7,018.24 9.60 0.00 22,439.82

1.002018 0.00 0.00 0.00 0.00 0.00 7,780.86 10.44 0.00 25,779.15

1.002019 0.00 0.00 0.00 0.00 0.00 8,572.32 11.27 0.00 29,109.65

1.002020 0.00 0.00 0.00 0.00 0.00 8,260.03 11.27 0.00 32,014.08

0.002021 0.00 0.00 0.00 0.00 0.00 7,645.59 10.25 0.00 34,457.74

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 67,501.53 93.33

0.00 0.00

0.00

0.00

34,457.74

0.00 0.00

84.67 7.04

0.00

429.21 81,599.00

0.00 0.00 0.00 0.00 0.00 0.00

429.21 81,599.00 47.48 9,026.48 4,020.15 63,574.70 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Gas

0 - 0

0.00

Mcf/monthMcf/month

% year b = 0.000

0.005

0.005

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

0.12642000

0.11062000

11/30/2021

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

47,566.15 34,457.74 25,678.14

20.00% :50.00% :

19,681.89 6,589.12

PW 4,350.3870.00% :

0.00

273,750.00 814,910.00

0.00

Hud Eco Detailed.rpt 15

Page 189: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Probable Undeveloped

SINPHUHORM

HESSPHA NOK KHAO

BLOCK EU1/E5N, ONSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:17:13AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SINPHUHORM - CNG PROB EXTENTION12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002012

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

93.19 7.24 4.69 891.00 0.52 98.56 48.31 713.13 0.002021

94.20 7.36 51.84 9,855.00 5.73 1,090.16 540.18 8,025.40 0.002022

96.08 7.49 51.84 9,855.00 5.73 1,090.16 550.97 8,166.35 0.002023

98.01 7.62 51.98 9,882.00 5.75 1,093.15 563.54 8,332.22 0.002024

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

0.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002012 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002013 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002014 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002020 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002021 0.00 0.00 0.00 0.00 0.00 760.43 1.02 0.00 231.19

1.002022 0.00 0.00 0.00 0.00 0.00 8,554.31 11.27 0.00 2,695.63

1.002023 0.00 0.00 0.00 0.00 0.00 8,706.05 11.27 0.00 4,966.21

1.002024 0.00 0.00 0.00 0.00 0.00 8,884.45 11.30 0.00 7,063.52

Rem.

Total

0.00 0.00 0.00 0.00 0.00 65,677.46

0.00 0.00 0.00 0.00 0.00 92,582.70 112.72

77.85 0.00

0.00

10,589.65

17,653.16

106.07 8.18

102.96 7.96

0.00

518.37 98,550.00

358.03 68,067.00 39.61 7,529.57 4,200.83 61,554.48

518.37 98,550.00 57.34 10,901.60 5,903.83 86,791.59 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Gas

0 - 0

0.00

Mcf/monthMcf/month

% year b = 0.000

0.005

0.005

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

0.12642000

0.11062000

11/26/2031

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

39,946.72 17,653.16

7,983.4620.00% :50.00% :

3,690.21 52.01

PW 3.8670.00% :

0.00

821,250.00 821,250.00

0.00

Hud Eco Detailed.rpt 16

Page 190: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

APPENDIX H:

Detailed Cash Flow Projections Forecast Price Case – Net to Coastal Energy

Combined Property Evaluation (Proved + Probable + Possible)

Table 1.3 Data

Page 191: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Lease Name Life

(years)

Oil

(Mbbl)

Gas

(MMcf)

Gas

(M$)

Oil

(M$)

Other

(M$)

Expense

& Tax

(M$)Invest.

(M$)

Non-Disc.

(M$)

3/30/2010

Cash FlowNet Reserves Net Revenue

Ownership Group :

Project Name : As of Date:

Economic One-Liners

Reserve Category

2:29:40PM

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

Disc. 10%

(M$)Risked / UnRisked

12/31/2009

Grand Total 2,433,855.48 3,725,933.54 230,912.59 448,214.90 0.00 838,083.39 3,566,977.63 112,387.15Total 21.90 43,890.29

Proved Rsv Class 763,882.56 1,016,466.78 126,109.02 254,079.42 0.00 284,484.72 1,112,170.50 40,901.75Total 11.91 14,206.70

Proved Rsv Class

Producing Rsv Category 345,559.99 491,682.81 13,235.75 172,941.07 0.00 284,484.72 393,374.90 40,901.75Total 11.91 5,022.53

Shut-In Rsv Category 152,707.38 185,822.67 5,512.08 10,615.83 0.00 0.00 201,950.58 0.00Total 7.00 2,586.92

Undeveloped Rsv Category 265,615.19 338,961.30 107,361.19 70,522.52 0.00 0.00 516,845.01 0.00Total 5.00 6,597.26

Probable Rsv Class 990,182.52 1,689,457.43 81,925.74 85,880.19 0.00 553,598.67 1,303,664.69 71,485.41Total 21.90 16,052.30

Probable Rsv Class

Undeveloped Rsv Category 990,182.52 1,689,457.43 81,925.74 85,880.19 0.00 553,598.67 1,303,664.69 71,485.41Total 21.90 16,052.30

Possible Rsv Class 679,790.40 1,020,009.32 22,877.82 108,255.30 0.00 0.00 1,151,142.44 0.00Total 10.00 13,631.29

Possible Rsv Class

Undeveloped Rsv Category 679,790.40 1,020,009.32 22,877.82 108,255.30 0.00 0.00 1,151,142.44 0.00Total 10.00 13,631.29

OFFSHORE LOCATION 2,134,640.07 2,893,337.16 216,539.53 402,330.35 0.00 0.00 3,512,207.04 0.00Total 10.00 43,299.13

OFFSHORE LOCATION

BUA BAN Field 1,231,302.96 1,698,731.73 168,323.17 156,720.08 0.00 0.00 2,023,774.98 0.00Total 8.50 24,885.72

OFFSHORE LOCATION

BUA BAN Field

Proved Rsv Class 265,615.19 338,961.30 107,361.19 70,522.52 0.00 0.00 516,845.01 0.00Total 5.00 6,597.26

OFFSHORE LOCATION

BUA BAN Field

Proved Rsv Class

Undeveloped Rsv Category 265,615.19 338,961.30 107,361.19 70,522.52 0.00 0.00 516,845.01 0.00Total 5.00 6,597.26

45,984.45 37,927.68 3.43 0.00 0.00 53,503.46 0.00 0.00 7,519.01P-UD 694.21BUA BAN A - PUD 1,2

92,810.47 75,284.66 3.59 0.00 0.00 107,895.21 0.00 0.00 15,084.73P-UD 1,388.44BUA BAN A - PUD 3,4,5,6

93,710.30 74,775.58 3.76 0.00 0.00 108,842.67 0.00 0.00 15,132.37P-UD 1,388.48BUA BAN B - PUD 7,8,9,10

94,168.71 74,624.95 3.84 0.00 0.00 109,348.10 0.00 0.00 15,179.40P-UD 1,388.50BUA BAN B - PUD 11,12,13,14

70,857.01 55,671.14 3.93 0.00 0.00 82,258.94 0.00 0.00 11,401.94P-UD 1,042.25BUA BAN A - PUD 15,16,17

47,383.33 36,947.48 4.01 0.00 0.00 54,996.62 0.00 0.00 7,613.29P-UD 695.38BUA BAN B - PUD 18,19

-70,522.52 -56,296.06 5.00 0.00 0.00 0.00 0.00 70,522.52 0.00P-UD 0.00BUA BAN A&B- PUD LOE

-35,430.46 -33,320.24 4.00 0.00 0.00 0.00 0.00 0.00 35,430.46P-UD 0.00BUA BAN A&B- PUD CAPITAL

TRC Eco One Liner.rpt 1

Page 192: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Lease Name Life

(years)

Oil

(Mbbl)

Gas

(MMcf)

Gas

(M$)

Oil

(M$)

Other

(M$)

Expense

& Tax

(M$)Invest.

(M$)

Non-Disc.

(M$)

3/30/2010

Cash FlowNet Reserves Net Revenue

Ownership Group :

Project Name : As of Date:

Economic One-Liners

Reserve Category

2:29:40PM

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

Disc. 10%

(M$)Risked / UnRisked

12/31/2009

OFFSHORE LOCATION

BUA BAN Field

Probable Rsv Class 689,610.53 932,092.43 60,961.98 62,018.07 0.00 0.00 1,055,072.48 0.00Total 8.50 12,979.04

OFFSHORE LOCATION

BUA BAN Field

Probable Rsv Class

Undeveloped Rsv Category 689,610.53 932,092.43 60,961.98 62,018.07 0.00 0.00 1,055,072.48 0.00Total 8.50 12,979.04

97,709.95 74,205.38 5.82 0.00 0.00 98,716.48 0.00 0.00 1,006.53PR-UD 1,232.51BUA BAN A - PROB INCR 1,2

196,912.48 147,077.46 5.98 0.00 0.00 198,932.21 0.00 0.00 2,019.74PR-UD 2,467.16BUA BAN A - PROB INCR 3,4,5,6

198,620.44 145,894.84 6.15 0.00 0.00 200,646.99 0.00 0.00 2,026.54PR-UD 2,470.29BUA BAN B - PROB INCR 7,8,9,10

199,515.89 145,334.85 6.23 0.00 0.00 201,549.15 0.00 0.00 2,033.26PR-UD 2,471.97BUA BAN B - PROB INCR 11,12,13,14

150,228.97 108,499.13 6.32 0.00 0.00 151,756.40 0.00 0.00 1,527.43PR-UD 1,856.63BUA BAN A - PROB INCR 15,16,17

100,515.05 72,037.79 6.40 0.00 0.00 101,535.05 0.00 0.00 1,020.00PR-UD 1,239.38BUA BAN B - PROB INCR 18,19

93,289.17 65,088.32 6.48 0.00 0.00 101,936.19 0.00 0.00 8,647.02PR-UD 1,241.10BUA BAN B - PROB 20,21

-62,018.07 -36,163.70 7.00 0.00 0.00 0.00 0.00 62,018.07 0.00PR-UD 0.00BUA BAN A&B- PROB LOE

-42,681.45 -32,363.54 8.50 0.00 0.00 0.00 0.00 0.00 42,681.45PR-UD 0.00BUA BAN A&B- PROB CAPITAL

OFFSHORE LOCATION

BUA BAN Field

Possible Rsv Class 276,077.24 427,678.00 0.00 24,179.49 0.00 0.00 451,857.49 0.00Total 8.00 5,309.42

OFFSHORE LOCATION

BUA BAN Field

Possible Rsv Class

Undeveloped Rsv Category 276,077.24 427,678.00 0.00 24,179.49 0.00 0.00 451,857.49 0.00Total 8.00 5,309.42

451,857.49 287,730.79 7.37 0.00 0.00 451,857.49 0.00 0.00 0.00PS-UD 5,309.42BUA BAN A&B - POSS INCR

-24,179.49 -11,653.55 8.00 0.00 0.00 0.00 0.00 24,179.49 0.00PS-UD 0.00BUA BAN A&B- POSS LOE

OFFSHORE LOCATION

SONGKHLA EOCENE Field 240,001.65 350,554.54 19,685.50 45,001.66 0.00 0.00 415,241.69 0.00Total 10.00 4,970.67

OFFSHORE LOCATION

SONGKHLA EOCENE Field

Proved Rsv Class 4,979.89 5,815.02 246.21 6,972.67 0.00 0.00 13,033.90 0.00Total 8.00 165.10

TRC Eco One Liner.rpt 2

Page 193: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Lease Name Life

(years)

Oil

(Mbbl)

Gas

(MMcf)

Gas

(M$)

Oil

(M$)

Other

(M$)

Expense

& Tax

(M$)Invest.

(M$)

Non-Disc.

(M$)

3/30/2010

Cash FlowNet Reserves Net Revenue

Ownership Group :

Project Name : As of Date:

Economic One-Liners

Reserve Category

2:29:40PM

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

Disc. 10%

(M$)Risked / UnRisked

12/31/2009

OFFSHORE LOCATION

SONGKHLA EOCENE Field

Proved Rsv Class

Producing Rsv Category 4,979.89 5,815.02 246.21 6,972.67 0.00 0.00 13,033.90 0.00Total 8.00 165.10

12,787.69 10,177.49 7.66 0.00 0.00 13,033.90 0.00 0.00 246.21P-DP 165.10SONGKHLA EOCENE A-7

-6,972.67 -5,197.61 8.00 0.00 0.00 0.00 0.00 6,972.67 0.00P-DP 0.00SONGKHLA EOCENE PDP LOE

OFFSHORE LOCATION

SONGKHLA EOCENE Field

Probable Rsv Class 48,430.80 61,925.14 12,877.45 306.03 0.00 0.00 75,108.63 0.00Total 4.00 952.73

OFFSHORE LOCATION

SONGKHLA EOCENE Field

Probable Rsv Class

Undeveloped Rsv Category 48,430.80 61,925.14 12,877.45 306.03 0.00 0.00 75,108.63 0.00Total 4.00 952.73

62,231.17 48,647.65 3.87 0.00 0.00 75,108.63 0.00 0.00 12,877.45PR-UD 952.73SONGKHLA EOCENE PROB

-306.03 -216.85 4.00 0.00 0.00 0.00 0.00 306.03 0.00PR-UD 0.00SONGKHLA EOCENE PROB LOE

OFFSHORE LOCATION

SONGKHLA EOCENE Field

Possible Rsv Class 186,590.96 282,814.38 6,561.83 37,722.95 0.00 0.00 327,099.16 0.00Total 10.00 3,852.85

OFFSHORE LOCATION

SONGKHLA EOCENE Field

Possible Rsv Class

Undeveloped Rsv Category 186,590.96 282,814.38 6,561.83 37,722.95 0.00 0.00 327,099.16 0.00Total 10.00 3,852.85

320,537.33 203,573.38 9.23 0.00 0.00 327,099.16 0.00 0.00 6,561.83PS-UD 3,852.85SONGKHLA EOCENE POSS

-37,722.95 -16,982.42 10.00 0.00 0.00 0.00 0.00 37,722.95 0.00PS-UD 0.00SONGKHLA EOCENE POSS LOE

OFFSHORE LOCATION

SONGKHLA OLIGOCENE Field 519,252.26 640,331.90 15,613.17 167,757.35 0.00 0.00 823,702.41 0.00Total 8.00 10,442.04

OFFSHORE LOCATION

SONGKHLA OLIGOCENE Field

Proved Rsv Class 338,724.15 401,652.79 8,712.83 154,255.75 0.00 0.00 564,621.37 0.00Total 7.00 7,229.21

TRC Eco One Liner.rpt 3

Page 194: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Lease Name Life

(years)

Oil

(Mbbl)

Gas

(MMcf)

Gas

(M$)

Oil

(M$)

Other

(M$)

Expense

& Tax

(M$)Invest.

(M$)

Non-Disc.

(M$)

3/30/2010

Cash FlowNet Reserves Net Revenue

Ownership Group :

Project Name : As of Date:

Economic One-Liners

Reserve Category

2:29:40PM

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

Disc. 10%

(M$)Risked / UnRisked

12/31/2009

OFFSHORE LOCATION

SONGKHLA OLIGOCENE Field

Proved Rsv Class

Producing Rsv Category 186,016.77 215,830.12 3,200.75 143,639.92 0.00 0.00 362,670.79 0.00Total 7.00 4,642.29

113,519.00 90,205.55 6.78 0.00 0.00 113,765.21 0.00 0.00 246.21P-DP 1,443.95SONGKHLA - A-1

124,056.25 101,585.76 6.22 0.00 0.00 124,302.46 0.00 0.00 246.21P-DP 1,595.63SONGKHLA - A-3

124,356.90 102,382.48 6.60 0.00 0.00 124,603.11 0.00 0.00 246.21P-DP 1,602.72SONGKHLA - A-8

-143,639.92 -107,291.41 7.00 0.00 0.00 0.00 0.00 143,639.92 0.00P-DP 0.00SONGKHLA PDP LOE

-2,462.11 -865.61 4.00 0.00 0.00 0.00 0.00 0.00 2,462.11P-DP 0.00SONGKHLA OLIGOCENE - PDP CAPITAL

OFFSHORE LOCATION

SONGKHLA OLIGOCENE Field

Proved Rsv Class

Shut-In Rsv Category 152,707.38 185,822.67 5,512.08 10,615.83 0.00 0.00 201,950.58 0.00Total 7.00 2,586.92

95,894.00 77,095.83 6.20 0.00 0.00 99,657.35 0.00 0.00 3,763.34P-SI 1,275.51SONGKHLA - A-2

100,544.50 81,632.73 6.31 0.00 0.00 102,293.24 0.00 0.00 1,748.74P-SI 1,311.41SONGKHLA - A-4

-10,615.83 -6,021.18 7.00 0.00 0.00 0.00 0.00 10,615.83 0.00P-SI 0.00SONGKHLA PDSI LOE

OFFSHORE LOCATION

SONGKHLA OLIGOCENE Field

Probable Rsv Class 107,489.11 132,881.16 3,502.04 0.00 0.00 0.00 136,383.21 0.00Total 4.18 1,744.51

OFFSHORE LOCATION

SONGKHLA OLIGOCENE Field

Probable Rsv Class

Undeveloped Rsv Category 107,489.11 132,881.16 3,502.04 0.00 0.00 0.00 136,383.21 0.00Total 4.18 1,744.51

132,881.16 107,489.11 4.18 0.00 0.00 136,383.21 0.00 0.00 3,502.04PR-UD 1,744.51SONGKHLA - PROB INCREMENTAL

OFFSHORE LOCATION

SONGKHLA OLIGOCENE Field

Possible Rsv Class 73,039.00 105,797.95 3,398.30 13,501.60 0.00 0.00 122,697.84 0.00Total 8.00 1,468.32

TRC Eco One Liner.rpt 4

Page 195: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Lease Name Life

(years)

Oil

(Mbbl)

Gas

(MMcf)

Gas

(M$)

Oil

(M$)

Other

(M$)

Expense

& Tax

(M$)Invest.

(M$)

Non-Disc.

(M$)

3/30/2010

Cash FlowNet Reserves Net Revenue

Ownership Group :

Project Name : As of Date:

Economic One-Liners

Reserve Category

2:29:40PM

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

Disc. 10%

(M$)Risked / UnRisked

12/31/2009

OFFSHORE LOCATION

SONGKHLA OLIGOCENE Field

Possible Rsv Class

Undeveloped Rsv Category 73,039.00 105,797.95 3,398.30 13,501.60 0.00 0.00 122,697.84 0.00Total 8.00 1,468.32

119,299.54 80,076.39 7.05 0.00 0.00 122,697.84 0.00 0.00 3,398.30PS-UD 1,468.32SONGKHLA - POSS INCREMENTAL

-13,501.60 -7,037.39 8.00 0.00 0.00 0.00 0.00 13,501.60 0.00PS-UD 0.00SONGKHLA - POSS LOE

OFFSHORE LOCATION

SONGKHLA OLIGOCENE WEDGE Field 144,083.20 203,719.00 12,917.69 32,851.26 0.00 0.00 249,487.95 0.00Total 10.00 3,000.70

OFFSHORE LOCATION

SONGKHLA OLIGOCENE WEDGE Field

Possible Rsv Class 144,083.20 203,719.00 12,917.69 32,851.26 0.00 0.00 249,487.95 0.00Total 10.00 3,000.70

OFFSHORE LOCATION

SONGKHLA OLIGOCENE WEDGE Field

Possible Rsv Class

Undeveloped Rsv Category 144,083.20 203,719.00 12,917.69 32,851.26 0.00 0.00 249,487.95 0.00Total 10.00 3,000.70

236,570.26 158,782.85 9.63 0.00 0.00 249,487.95 0.00 0.00 12,917.69PS-UD 3,000.70SONGKHLA - POSS WEDGE

-32,851.26 -14,699.65 10.00 0.00 0.00 0.00 0.00 32,851.26 0.00PS-UD 0.00SONGKHLA - POSS WEDGE LOE

ONSHORE LOCATION 299,215.41 832,596.37 14,373.06 45,884.56 0.00 838,083.39 54,770.60 112,387.15Total 21.90 591.16

ONSHORE LOCATION

SINPHUHORM Field 299,215.41 832,596.37 14,373.06 45,884.56 0.00 838,083.39 54,770.60 112,387.15Total 21.90 591.16

ONSHORE LOCATION

SINPHUHORM Field

Proved Rsv Class 154,563.33 270,037.67 9,788.79 22,328.47 0.00 284,484.72 17,670.22 40,901.75Total 11.91 215.14

ONSHORE LOCATION

SINPHUHORM Field

Proved Rsv Class

Producing Rsv Category 154,563.33 270,037.67 9,788.79 22,328.47 0.00 284,484.72 17,670.22 40,901.75Total 11.91 215.14

270,037.67 154,563.33 11.91 40,901.75 0.00 17,670.22 284,484.72 22,328.47 9,788.79P-DP 215.14SINPHUHORM - PDP CASE

TRC Eco One Liner.rpt 5

Page 196: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Lease Name Life

(years)

Oil

(Mbbl)

Gas

(MMcf)

Gas

(M$)

Oil

(M$)

Other

(M$)

Expense

& Tax

(M$)Invest.

(M$)

Non-Disc.

(M$)

3/30/2010

Cash FlowNet Reserves Net Revenue

Ownership Group :

Project Name : As of Date:

Economic One-Liners

Reserve Category

2:29:40PM

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

Disc. 10%

(M$)Risked / UnRisked

12/31/2009

ONSHORE LOCATION

SINPHUHORM Field

Probable Rsv Class 144,652.08 562,558.70 4,584.27 23,556.08 0.00 553,598.67 37,100.38 71,485.41Total 21.90 376.01

ONSHORE LOCATION

SINPHUHORM Field

Probable Rsv Class

Undeveloped Rsv Category 144,652.08 562,558.70 4,584.27 23,556.08 0.00 553,598.67 37,100.38 71,485.41Total 21.90 376.01

55,059.31 26,281.96 11.92 7,950.92 0.00 3,561.07 56,066.03 82.21 4,485.58PR-UD 41.82SINPHUHORM - PTT PROB PRIMARY

347,415.16 66,259.21 21.90 43,606.40 0.00 23,615.32 347,166.35 23,267.83 98.69PR-UD 229.37SINPHUHORM - PTT PROB EXTENTION

67,501.53 34,457.74 11.92 9,026.48 0.00 4,020.15 63,574.70 93.33 0.00PR-UD 47.48SINPHUHORM - CNG PROB PRIMARY

92,582.70 17,653.16 21.90 10,901.60 0.00 5,903.83 86,791.59 112.72 0.00PR-UD 57.34SINPHUHORM - CNG PROB EXTENTION

TRC Eco One Liner.rpt 6

Page 197: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTION03/30/2010 11:19:40AMDate :

94,900.03

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

2,561.71

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

GRAND TOTAL CASE

Total

72.57 6.67 4,288.19 35,405.00 3,776.32 3,916.50 274,050.68 26,118.50 0.002010

76.58 6.92 11,371.67 36,865.00 9,804.42 4,078.01 750,821.01 28,209.80 0.002011

79.58 6.39 11,516.52 38,410.00 9,986.07 4,248.91 794,684.02 27,152.75 0.002012

82.57 6.61 8,523.19 40,150.00 7,435.06 4,441.39 613,946.72 29,364.68 0.002013

85.56 6.83 5,510.81 41,975.00 4,819.69 4,643.27 412,393.24 31,730.54 0.002014

87.40 6.97 4,539.69 44,165.00 3,961.16 4,885.53 346,191.63 34,051.45 0.002015

89.25 6.98 2,601.51 46,440.00 2,225.03 5,137.19 198,575.95 35,840.98 0.002016

91.06 7.12 1,152.60 47,815.00 881.60 5,289.30 80,279.67 37,638.22 0.002017

92.86 7.26 722.18 48,545.00 471.74 5,370.05 43,803.56 38,970.75 0.002018

94.33 7.40 426.58 49,275.00 187.70 5,450.80 17,705.12 40,347.59 0.002019

90.54 7.11 259.63 49,360.00 28.72 5,460.20 2,600.46 38,827.45 0.002020

92.36 7.24 259.19 49,275.00 28.67 5,450.80 2,647.98 39,438.42 0.002021

94.20 7.36 259.19 49,275.00 28.67 5,450.80 2,700.88 40,127.02 0.002022

96.08 7.49 259.19 49,275.00 28.67 5,450.80 2,754.86 40,831.76 0.002023

98.01 7.62 259.90 49,410.00 28.75 5,465.73 2,817.69 41,661.08 0.002024

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

38.002010 0.00 0.00 144,478.52 34,133.28 0.00 121,516.88 40.49 0.00 115,631.65

57.002011 0.00 0.00 51,576.83 46,610.52 0.00 680,801.30 42.16 0.00 703,002.46

59.002012 0.00 0.00 9,315.35 47,543.62 0.00 764,933.87 43.93 0.00 1,301,059.58

59.002013 0.00 0.00 4,552.19 48,493.63 0.00 590,219.65 45.92 0.00 1,719,214.44

38.002014 0.00 0.00 13.82 49,463.48 0.00 394,598.47 48.01 0.00 1,971,949.04

34.002015 0.00 0.00 0.00 50,452.73 0.00 329,739.84 50.51 0.00 2,163,062.68

32.002016 0.00 0.00 0.00 51,462.74 0.00 182,901.08 53.12 0.00 2,259,569.40

18.002017 0.00 0.00 0.00 49,927.32 0.00 67,935.89 54.69 0.00 2,292,275.89

12.002018 0.00 0.00 13,488.73 30,218.66 0.00 39,011.40 55.52 0.00 2,309,033.05

11.002019 0.00 0.00 0.00 12,058.21 0.00 45,938.14 56.36 0.00 2,327,030.12

5.002020 0.00 0.00 6,647.71 2,007.68 0.00 32,716.06 56.46 0.00 2,338,533.30

5.002021 0.00 0.00 0.00 2,047.73 0.00 39,982.31 56.36 0.00 2,351,256.61

2.002022 0.00 0.00 740.75 2,088.75 0.00 39,942.04 56.36 0.00 2,362,763.62

2.002023 0.00 0.00 0.00 2,130.50 0.00 41,399.77 56.36 0.00 2,373,560.82

2.002024 0.00 0.00 0.00 2,173.17 0.00 42,249.09 56.51 0.00 2,383,534.37

Rem.

Total

0.00 0.00 98.69 16,240.87 0.00 312,047.75

0.00 0.00 230,912.59 447,052.88 0.00 3,725,933.54 1,162.02

389.26 0.00

0.00

50,321.10

2,433,855.48

106.07 8.18

81.27 7.46

0.00

56,301.92 1,110,875.03

1,790.16 340,335.00 198.03 37,647.86 21,004.16 307,772.41

53,740.21 1,015,975.00 43,890.29 112,387.15 3,566,977.63 838,083.39 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

13.23 / 17.14

0.92

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

2,953,389.81 2,433,855.48 2,055,677.46

20.00% :50.00% :

1,764,949.68 845,752.66

PW 572,856.4570.00% :

199,008.92

>1000

Hud Eco Detailed.rpt 1

Page 198: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTION

Proved Rsv Class

03/30/2010 11:19:40AMDate :

94,900.03

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

2,561.71

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK SUB-TOTAL CASE

Total

72.57 6.67 3,381.48 31,025.00 2,991.01 3,431.99 217,053.97 22,887.34 0.002010

76.57 6.92 5,110.37 31,025.00 4,513.34 3,431.99 345,592.91 23,740.92 0.002011

79.56 6.39 3,679.50 31,110.00 3,258.88 3,441.39 259,287.30 21,992.24 0.002012

82.55 6.61 2,302.64 31,025.00 2,020.06 3,431.99 166,747.56 22,690.89 0.002013

85.45 6.83 833.60 31,025.00 654.94 3,431.99 55,965.03 23,453.01 0.002014

87.24 6.97 658.33 31,025.00 488.44 3,431.99 42,611.01 23,920.44 0.002015

88.80 6.98 340.84 31,110.00 186.44 3,441.39 16,555.95 24,009.75 0.002016

87.04 7.12 168.38 31,025.00 22.98 3,431.99 1,999.99 24,421.75 0.002017

87.76 7.26 163.19 31,025.00 18.05 3,431.99 1,584.26 24,906.12 0.002018

89.65 7.40 163.19 31,025.00 18.05 3,431.99 1,618.38 25,404.04 0.002019

90.54 7.11 163.64 31,110.00 18.10 3,441.39 1,639.00 24,471.67 0.002020

92.27 7.24 148.44 28,220.00 16.42 3,121.70 1,515.14 22,586.55 0.002021

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002022

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

25.002010 0.00 0.00 102,468.12 34,133.28 0.00 103,304.44 35.48 0.00 99,226.99

34.002011 0.00 0.00 8,220.83 46,610.52 0.00 314,466.99 35.48 0.00 370,490.65

34.002012 0.00 0.00 3,506.68 47,532.71 0.00 230,204.56 35.58 0.00 550,623.86

34.002013 0.00 0.00 2,723.18 48,198.51 0.00 138,481.27 35.48 0.00 649,300.06

15.002014 0.00 0.00 13.82 27,463.29 0.00 51,905.44 35.48 0.00 682,557.96

12.002015 0.00 0.00 0.00 27,800.69 0.00 38,695.28 35.48 0.00 705,001.86

12.002016 0.00 0.00 0.00 11,954.37 0.00 28,575.76 35.58 0.00 720,138.91

5.002017 0.00 0.00 0.00 2,193.49 0.00 24,192.76 35.48 0.00 731,609.41

3.002018 0.00 0.00 4,496.24 1,929.68 0.00 20,028.97 35.48 0.00 740,203.21

3.002019 0.00 0.00 0.00 1,968.25 0.00 25,018.69 35.48 0.00 749,921.28

3.002020 0.00 0.00 3,939.38 2,007.68 0.00 20,128.03 35.58 0.00 756,998.06

3.002021 0.00 0.00 0.00 1,864.06 0.00 22,205.35 32.28 0.00 764,095.99

0.002022 0.00 0.00 740.75 0.00 0.00 -740.75 0.00 0.00 763,882.56

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 126,109.02 253,656.52 0.00 1,016,466.78 422.90

0.00 0.00

0.00

0.00

763,882.56

0.00 0.00

78.28 6.96

0.00

19,675.31 464,650.03

0.00 0.00 0.00 0.00 0.00 0.00

17,113.59 369,750.00 14,206.70 40,901.75 1,112,170.50 284,484.72 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

7.83 / 9.06

0.63

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

874,776.42 763,882.56 674,945.68

20.00% :50.00% :

602,106.20 345,610.33

PW 258,122.2370.00% :

111,886.05

>1000

Hud Eco Detailed.rpt 2

Page 199: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTION

Proved Rsv ClassProducing Rsv Category

03/30/2010 11:19:40AMDate :

94,873.90

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

2,360.69

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK SUB-TOTAL CASE

Total

72.55 6.67 1,962.01 31,025.00 1,679.74 3,431.99 121,869.35 22,887.34 0.002010

76.51 6.92 1,280.28 31,025.00 1,033.11 3,431.99 79,041.79 23,740.92 0.002011

79.48 6.39 967.73 31,110.00 759.28 3,441.39 60,344.61 21,992.24 0.002012

82.43 6.61 748.13 31,025.00 565.41 3,431.99 46,608.49 22,690.89 0.002013

85.37 6.83 591.52 31,025.00 424.97 3,431.99 36,281.58 23,453.01 0.002014

87.14 6.97 477.36 31,025.00 316.51 3,431.99 27,579.90 23,920.44 0.002015

88.68 6.98 302.37 31,110.00 149.90 3,441.39 13,292.41 24,009.75 0.002016

87.04 7.12 168.38 31,025.00 22.98 3,431.99 1,999.99 24,421.75 0.002017

87.76 7.26 163.19 31,025.00 18.05 3,431.99 1,584.26 24,906.12 0.002018

89.65 7.40 163.19 31,025.00 18.05 3,431.99 1,618.38 25,404.04 0.002019

90.54 7.11 163.64 31,110.00 18.10 3,441.39 1,639.00 24,471.67 0.002020

92.27 7.24 148.44 28,220.00 16.42 3,121.70 1,515.14 22,586.55 0.002021

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002022

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

10.002010 0.00 0.00 1,723.51 25,791.33 0.00 117,206.37 35.48 0.00 112,203.68

10.002011 0.00 0.00 1,080.83 26,307.14 0.00 75,359.26 35.48 0.00 177,329.72

10.002012 0.00 0.00 3,506.68 26,822.88 0.00 51,971.70 35.58 0.00 217,984.42

10.002013 0.00 0.00 2,723.18 27,074.87 0.00 39,465.84 35.48 0.00 245,924.85

9.002014 0.00 0.00 13.82 27,419.57 0.00 32,265.71 35.48 0.00 266,600.16

9.002015 0.00 0.00 0.00 19,379.91 0.00 32,084.95 35.48 0.00 285,199.58

9.002016 0.00 0.00 0.00 9,759.30 0.00 27,507.27 35.58 0.00 299,713.82

5.002017 0.00 0.00 0.00 2,193.49 0.00 24,192.76 35.48 0.00 311,184.32

3.002018 0.00 0.00 0.00 1,929.68 0.00 24,525.22 35.48 0.00 321,707.52

3.002019 0.00 0.00 0.00 1,968.25 0.00 25,018.69 35.48 0.00 331,425.58

3.002020 0.00 0.00 3,446.96 2,007.68 0.00 20,620.45 35.58 0.00 338,675.48

3.002021 0.00 0.00 0.00 1,864.06 0.00 22,205.35 32.28 0.00 345,773.41

0.002022 0.00 0.00 740.75 0.00 0.00 -740.75 0.00 0.00 345,559.99

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 13,235.75 172,518.17 0.00 491,682.81 422.90

0.00 0.00

0.00

0.00

345,559.99

0.00 0.00

78.32 6.96

0.00

9,496.94 464,623.90

0.00 0.00 0.00 0.00 0.00 0.00

7,136.25 369,750.00 5,022.53 40,901.75 393,374.90 284,484.72 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

40.89 / 38.15

0.08

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

406,654.30 345,559.99 300,429.12

20.00% :50.00% :

266,174.03 163,810.10

PW 133,364.1070.00% :

8,663.15

>1000

Hud Eco Detailed.rpt 3

Page 200: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTION

Proved Rsv ClassShut-In Rsv Category

03/30/2010 11:19:40AMDate :

26.13

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

201.02

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK SUB-TOTAL CASE

Total

72.59 0.00 966.67 0.00 892.98 0.00 64,821.17 0.00 0.002010

76.59 0.00 613.45 0.00 557.41 0.00 42,692.14 0.00 0.002011

79.59 0.00 431.72 0.00 397.94 0.00 31,672.38 0.00 0.002012

82.59 0.00 321.60 0.00 300.94 0.00 24,854.43 0.00 0.002013

85.59 0.00 241.25 0.00 229.18 0.00 19,615.83 0.00 0.002014

87.43 0.00 180.97 0.00 171.92 0.00 15,031.10 0.00 0.002015

89.31 0.00 38.47 0.00 36.54 0.00 3,263.54 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

3.002010 0.00 0.00 5,019.66 0.00 0.00 59,801.51 0.00 0.00 56,578.64

3.002011 0.00 0.00 0.00 0.00 0.00 42,692.14 0.00 0.00 93,499.67

3.002012 0.00 0.00 0.00 0.00 0.00 31,672.38 0.00 0.00 118,261.37

3.002013 0.00 0.00 0.00 0.00 0.00 24,854.43 0.00 0.00 135,848.07

3.002014 0.00 0.00 0.00 0.00 0.00 19,615.83 0.00 0.00 148,413.21

3.002015 0.00 0.00 0.00 8,420.77 0.00 6,610.33 0.00 0.00 152,257.69

3.002016 0.00 0.00 0.00 2,195.06 0.00 1,068.48 0.00 0.00 152,880.50

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 152,880.50

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 152,880.50

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 152,880.50

0.002020 0.00 0.00 492.42 0.00 0.00 -492.42 0.00 0.00 152,707.38

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 5,512.08 10,615.83 0.00 185,822.67 0.00

0.00 0.00

0.00

0.00

152,707.38

0.00 0.00

78.07 0.00

0.00

2,995.13 26.13

0.00 0.00 0.00 0.00 0.00 0.00

2,794.11 0.00 2,586.92 0.00 201,950.58 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

30.97 / 34.71

0.23

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

167,997.96 152,707.38 139,527.56

20.00% :50.00% :

128,109.55 83,629.20

PW 66,938.6370.00% :

5,094.88

>1000

Hud Eco Detailed.rpt 4

Page 201: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTION

Proved Rsv ClassUndeveloped Rsv Category

03/30/2010 11:19:40AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK SUB-TOTAL CASE

Total

72.59 0.00 452.80 0.00 418.29 0.00 30,363.45 0.00 0.002010

76.59 0.00 3,216.64 0.00 2,922.82 0.00 223,858.98 0.00 0.002011

79.59 0.00 2,280.04 0.00 2,101.65 0.00 167,270.31 0.00 0.002012

82.59 0.00 1,232.91 0.00 1,153.71 0.00 95,284.64 0.00 0.002013

85.59 0.00 0.83 0.00 0.79 0.00 67.62 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

12.002010 0.00 0.00 95,724.95 8,341.94 0.00 -73,703.44 0.00 0.00 -69,555.33

21.002011 0.00 0.00 7,140.00 20,303.38 0.00 196,415.60 0.00 0.00 99,661.27

21.002012 0.00 0.00 0.00 20,709.83 0.00 146,560.48 0.00 0.00 214,378.06

21.002013 0.00 0.00 0.00 21,123.64 0.00 74,161.00 0.00 0.00 267,527.14

3.002014 0.00 0.00 0.00 43.72 0.00 23.90 0.00 0.00 267,544.59

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 267,544.59

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 267,544.59

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 267,544.59

0.002018 0.00 0.00 4,496.24 0.00 0.00 -4,496.24 0.00 0.00 265,615.19

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 107,361.19 70,522.52 0.00 338,961.30 0.00

0.00 0.00

0.00

0.00

265,615.19

0.00 0.00

78.34 0.00

0.00

7,183.23 0.00

0.00 0.00 0.00 0.00 0.00 0.00

7,183.23 0.00 6,597.26 0.00 516,845.01 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

3.71 / 4.16

1.39

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

300,124.16 265,615.19 234,988.99

20.00% :50.00% :

207,822.63 98,171.03

PW 57,819.5070.00% :

98,128.03

143.81

Hud Eco Detailed.rpt 5

Page 202: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTION

Probable Rsv Class

03/30/2010 11:19:40AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK SUB-TOTAL CASE

Total

72.58 6.67 906.72 4,380.00 785.31 484.52 56,996.70 3,231.15 0.002010

76.59 6.92 4,968.64 5,840.00 4,256.96 646.02 326,024.50 4,468.88 0.002011

79.58 6.39 4,218.06 7,300.00 3,651.07 807.53 290,568.23 5,160.51 0.002012

82.58 6.61 3,420.32 9,125.00 2,992.60 1,009.41 247,132.73 6,673.79 0.002013

85.57 6.83 2,316.51 10,950.00 2,082.37 1,211.29 178,197.60 8,277.53 0.002014

87.41 6.97 1,812.48 13,140.00 1,628.42 1,453.55 142,333.01 10,131.01 0.002015

89.16 6.98 405.99 15,330.00 318.00 1,695.80 28,354.18 11,831.23 0.002016

85.90 7.12 88.32 16,790.00 9.77 1,857.31 839.20 13,216.48 0.002017

87.76 7.26 92.16 17,520.00 10.19 1,938.06 894.65 14,064.63 0.002018

89.65 7.40 96.00 18,250.00 10.62 2,018.82 951.99 14,943.55 0.002019

90.54 7.11 96.00 18,250.00 10.62 2,018.82 961.46 14,355.77 0.002020

92.47 7.24 110.75 21,055.00 12.25 2,329.10 1,132.84 16,851.87 0.002021

94.20 7.36 259.19 49,275.00 28.67 5,450.80 2,700.88 40,127.02 0.002022

96.08 7.49 259.19 49,275.00 28.67 5,450.80 2,754.86 40,831.76 0.002023

98.01 7.62 259.90 49,410.00 28.75 5,465.73 2,817.69 41,661.08 0.002024

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

9.002010 0.00 0.00 23,761.94 0.00 0.00 36,460.91 5.01 0.00 33,438.63

15.002011 0.00 0.00 43,355.99 0.00 0.00 287,130.71 6.68 0.00 281,213.45

15.002012 0.00 0.00 2,656.58 10.91 0.00 293,052.91 8.35 0.00 510,150.86

15.002013 0.00 0.00 1,829.00 295.13 0.00 251,671.95 10.44 0.00 688,167.75

13.002014 0.00 0.00 0.00 21,502.39 0.00 164,960.21 12.52 0.00 793,926.62

12.002015 0.00 0.00 0.00 21,977.04 0.00 130,471.95 15.03 0.00 869,609.49

10.002016 0.00 0.00 0.00 18,538.65 0.00 21,629.23 17.53 0.00 881,424.36

3.002017 0.00 0.00 0.00 0.00 0.00 14,036.47 19.20 0.00 888,078.76

3.002018 0.00 0.00 8,992.48 0.00 0.00 5,946.76 20.04 0.00 890,631.48

2.002019 0.00 0.00 0.00 0.00 0.00 15,874.67 20.87 0.00 896,799.08

2.002020 0.00 0.00 1,231.06 0.00 0.00 14,065.30 20.87 0.00 901,744.85

2.002021 0.00 0.00 0.00 183.68 0.00 17,776.96 24.08 0.00 907,370.23

2.002022 0.00 0.00 0.00 2,088.75 0.00 40,682.80 56.36 0.00 919,090.66

2.002023 0.00 0.00 0.00 2,130.50 0.00 41,399.77 56.36 0.00 929,887.86

2.002024 0.00 0.00 0.00 2,173.17 0.00 42,249.09 56.51 0.00 939,861.41

Rem.

Total

0.00 0.00 98.69 16,240.87 0.00 312,047.75

0.00 0.00 81,925.74 85,141.07 0.00 1,689,457.43 739.12

389.26 0.00

0.00

50,321.10

990,182.52

106.07 8.18

81.21 7.74

0.00

21,100.36 646,225.00

1,790.16 340,335.00 198.03 37,647.86 21,004.16 307,772.41

21,100.36 646,225.00 16,052.30 71,485.41 1,303,664.69 553,598.67 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

15.75 / 21.62

1.08

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

1,248,980.28 990,182.52 819,779.45

20.00% :50.00% :

696,845.83 327,542.66

PW 217,575.0170.00% :

67,111.38

798.74

Hud Eco Detailed.rpt 6

Page 203: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTION

Probable Rsv ClassUndeveloped Rsv Category

03/30/2010 11:19:40AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK SUB-TOTAL CASE

Total

72.58 6.67 906.72 4,380.00 785.31 484.52 56,996.70 3,231.15 0.002010

76.59 6.92 4,968.64 5,840.00 4,256.96 646.02 326,024.50 4,468.88 0.002011

79.58 6.39 4,218.06 7,300.00 3,651.07 807.53 290,568.23 5,160.51 0.002012

82.58 6.61 3,420.32 9,125.00 2,992.60 1,009.41 247,132.73 6,673.79 0.002013

85.57 6.83 2,316.51 10,950.00 2,082.37 1,211.29 178,197.60 8,277.53 0.002014

87.41 6.97 1,812.48 13,140.00 1,628.42 1,453.55 142,333.01 10,131.01 0.002015

89.16 6.98 405.99 15,330.00 318.00 1,695.80 28,354.18 11,831.23 0.002016

85.90 7.12 88.32 16,790.00 9.77 1,857.31 839.20 13,216.48 0.002017

87.76 7.26 92.16 17,520.00 10.19 1,938.06 894.65 14,064.63 0.002018

89.65 7.40 96.00 18,250.00 10.62 2,018.82 951.99 14,943.55 0.002019

90.54 7.11 96.00 18,250.00 10.62 2,018.82 961.46 14,355.77 0.002020

92.47 7.24 110.75 21,055.00 12.25 2,329.10 1,132.84 16,851.87 0.002021

94.20 7.36 259.19 49,275.00 28.67 5,450.80 2,700.88 40,127.02 0.002022

96.08 7.49 259.19 49,275.00 28.67 5,450.80 2,754.86 40,831.76 0.002023

98.01 7.62 259.90 49,410.00 28.75 5,465.73 2,817.69 41,661.08 0.002024

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

9.002010 0.00 0.00 23,761.94 0.00 0.00 36,460.91 5.01 0.00 33,438.63

15.002011 0.00 0.00 43,355.99 0.00 0.00 287,130.71 6.68 0.00 281,213.45

15.002012 0.00 0.00 2,656.58 10.91 0.00 293,052.91 8.35 0.00 510,150.86

15.002013 0.00 0.00 1,829.00 295.13 0.00 251,671.95 10.44 0.00 688,167.75

13.002014 0.00 0.00 0.00 21,502.39 0.00 164,960.21 12.52 0.00 793,926.62

12.002015 0.00 0.00 0.00 21,977.04 0.00 130,471.95 15.03 0.00 869,609.49

10.002016 0.00 0.00 0.00 18,538.65 0.00 21,629.23 17.53 0.00 881,424.36

3.002017 0.00 0.00 0.00 0.00 0.00 14,036.47 19.20 0.00 888,078.76

3.002018 0.00 0.00 8,992.48 0.00 0.00 5,946.76 20.04 0.00 890,631.48

2.002019 0.00 0.00 0.00 0.00 0.00 15,874.67 20.87 0.00 896,799.08

2.002020 0.00 0.00 1,231.06 0.00 0.00 14,065.30 20.87 0.00 901,744.85

2.002021 0.00 0.00 0.00 183.68 0.00 17,776.96 24.08 0.00 907,370.23

2.002022 0.00 0.00 0.00 2,088.75 0.00 40,682.80 56.36 0.00 919,090.66

2.002023 0.00 0.00 0.00 2,130.50 0.00 41,399.77 56.36 0.00 929,887.86

2.002024 0.00 0.00 0.00 2,173.17 0.00 42,249.09 56.51 0.00 939,861.41

Rem.

Total

0.00 0.00 98.69 16,240.87 0.00 312,047.75

0.00 0.00 81,925.74 85,141.07 0.00 1,689,457.43 739.12

389.26 0.00

0.00

50,321.10

990,182.52

106.07 8.18

81.21 7.74

0.00

21,100.36 646,225.00

1,790.16 340,335.00 198.03 37,647.86 21,004.16 307,772.41

21,100.36 646,225.00 16,052.30 71,485.41 1,303,664.69 553,598.67 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

15.75 / 21.62

1.08

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

1,248,980.28 990,182.52 819,779.45

20.00% :50.00% :

696,845.83 327,542.66

PW 217,575.0170.00% :

67,111.38

798.74

Hud Eco Detailed.rpt 7

Page 204: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTION

Possible Rsv Class

03/30/2010 11:19:40AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK SUB-TOTAL CASE

Total

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 1,292.66 0.00 1,034.12 0.00 79,203.59 0.00 0.002011

79.59 0.00 3,618.97 0.00 3,076.12 0.00 244,828.49 0.00 0.002012

82.59 0.00 2,800.24 0.00 2,422.41 0.00 200,066.43 0.00 0.002013

85.59 0.00 2,360.70 0.00 2,082.38 0.00 178,230.61 0.00 0.002014

87.43 0.00 2,068.88 0.00 1,844.31 0.00 161,247.62 0.00 0.002015

89.31 0.00 1,854.69 0.00 1,720.59 0.00 153,665.82 0.00 0.002016

91.23 0.00 895.91 0.00 848.85 0.00 77,440.49 0.00 0.002017

93.18 0.00 466.83 0.00 443.49 0.00 41,324.65 0.00 0.002018

95.17 0.00 167.40 0.00 159.03 0.00 15,134.74 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

4.002010 0.00 0.00 18,248.47 0.00 0.00 -18,248.47 0.00 0.00 -17,033.98

8.002011 0.00 0.00 0.00 0.00 0.00 79,203.59 0.00 0.00 51,298.36

10.002012 0.00 0.00 3,152.09 0.00 0.00 241,676.41 0.00 0.00 240,284.86

10.002013 0.00 0.00 0.00 0.00 0.00 200,066.43 0.00 0.00 381,746.63

10.002014 0.00 0.00 0.00 497.80 0.00 177,732.82 0.00 0.00 495,464.46

10.002015 0.00 0.00 0.00 675.01 0.00 160,572.61 0.00 0.00 588,451.33

10.002016 0.00 0.00 0.00 20,969.73 0.00 132,696.09 0.00 0.00 658,006.13

10.002017 0.00 0.00 0.00 47,733.83 0.00 29,706.66 0.00 0.00 672,587.72

6.002018 0.00 0.00 0.00 28,288.98 0.00 13,035.67 0.00 0.00 678,198.36

6.002019 0.00 0.00 0.00 10,089.96 0.00 5,044.78 0.00 0.00 680,309.76

0.002020 0.00 0.00 1,477.27 0.00 0.00 -1,477.27 0.00 0.00 679,790.40

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 22,877.82 108,255.30 0.00 1,020,009.32 0.00

0.00 0.00

0.00

0.00

679,790.40

0.00 0.00

84.45 0.00

0.00

15,526.26 0.00

0.00 0.00 0.00 0.00 0.00 0.00

15,526.26 0.00 13,631.29 0.00 1,151,142.44 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

34.97 / 45.59

1.26

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

829,633.11 679,790.40 560,952.32

20.00% :50.00% :

465,997.65 172,599.67

PW 97,159.2170.00% :

20,011.49

272.44

Hud Eco Detailed.rpt 8

Page 205: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTION

Possible Rsv ClassUndeveloped Rsv Category

03/30/2010 11:19:40AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK SUB-TOTAL CASE

Total

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 1,292.66 0.00 1,034.12 0.00 79,203.59 0.00 0.002011

79.59 0.00 3,618.97 0.00 3,076.12 0.00 244,828.49 0.00 0.002012

82.59 0.00 2,800.24 0.00 2,422.41 0.00 200,066.43 0.00 0.002013

85.59 0.00 2,360.70 0.00 2,082.38 0.00 178,230.61 0.00 0.002014

87.43 0.00 2,068.88 0.00 1,844.31 0.00 161,247.62 0.00 0.002015

89.31 0.00 1,854.69 0.00 1,720.59 0.00 153,665.82 0.00 0.002016

91.23 0.00 895.91 0.00 848.85 0.00 77,440.49 0.00 0.002017

93.18 0.00 466.83 0.00 443.49 0.00 41,324.65 0.00 0.002018

95.17 0.00 167.40 0.00 159.03 0.00 15,134.74 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

4.002010 0.00 0.00 18,248.47 0.00 0.00 -18,248.47 0.00 0.00 -17,033.98

8.002011 0.00 0.00 0.00 0.00 0.00 79,203.59 0.00 0.00 51,298.36

10.002012 0.00 0.00 3,152.09 0.00 0.00 241,676.41 0.00 0.00 240,284.86

10.002013 0.00 0.00 0.00 0.00 0.00 200,066.43 0.00 0.00 381,746.63

10.002014 0.00 0.00 0.00 497.80 0.00 177,732.82 0.00 0.00 495,464.46

10.002015 0.00 0.00 0.00 675.01 0.00 160,572.61 0.00 0.00 588,451.33

10.002016 0.00 0.00 0.00 20,969.73 0.00 132,696.09 0.00 0.00 658,006.13

10.002017 0.00 0.00 0.00 47,733.83 0.00 29,706.66 0.00 0.00 672,587.72

6.002018 0.00 0.00 0.00 28,288.98 0.00 13,035.67 0.00 0.00 678,198.36

6.002019 0.00 0.00 0.00 10,089.96 0.00 5,044.78 0.00 0.00 680,309.76

0.002020 0.00 0.00 1,477.27 0.00 0.00 -1,477.27 0.00 0.00 679,790.40

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 22,877.82 108,255.30 0.00 1,020,009.32 0.00

0.00 0.00

0.00

0.00

679,790.40

0.00 0.00

84.45 0.00

0.00

15,526.26 0.00

0.00 0.00 0.00 0.00 0.00 0.00

15,526.26 0.00 13,631.29 0.00 1,151,142.44 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

34.97 / 45.59

1.26

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

829,633.11 679,790.40 560,952.32

20.00% :50.00% :

465,997.65 172,599.67

PW 97,159.2170.00% :

20,011.49

272.44

Hud Eco Detailed.rpt 9

Page 206: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

03/30/2010 11:19:40AMDate :

278.79

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

2,058.78

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

72.59 0.00 4,101.96 0.00 3,755.72 0.00 272,627.36 0.00 0.002010

76.59 0.00 11,177.76 0.00 9,782.97 0.00 749,277.66 0.00 0.002011

79.59 0.00 11,314.49 0.00 9,963.72 0.00 793,012.30 0.00 0.002012

82.59 0.00 8,312.00 0.00 7,411.70 0.00 612,132.44 0.00 0.002013

85.59 0.00 5,290.02 0.00 4,795.26 0.00 410,426.64 0.00 0.002014

87.43 0.00 4,307.38 0.00 3,935.46 0.00 344,077.21 0.00 0.002015

89.31 0.00 2,357.23 0.00 2,198.01 0.00 196,304.24 0.00 0.002016

91.23 0.00 901.09 0.00 853.77 0.00 77,889.79 0.00 0.002017

93.18 0.00 466.83 0.00 443.49 0.00 41,324.65 0.00 0.002018

95.17 0.00 167.40 0.00 159.03 0.00 15,134.74 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

33.002010 0.00 0.00 142,755.01 32,486.31 0.00 97,386.04 0.00 0.00 92,664.12

52.002011 0.00 0.00 50,495.99 44,930.64 0.00 653,851.03 0.00 0.00 656,813.46

54.002012 0.00 0.00 3,152.09 45,830.09 0.00 744,030.12 0.00 0.00 1,238,567.30

54.002013 0.00 0.00 0.00 46,745.84 0.00 565,386.61 0.00 0.00 1,639,191.30

33.002014 0.00 0.00 0.00 47,680.75 0.00 362,745.88 0.00 0.00 1,871,569.34

29.002015 0.00 0.00 0.00 48,634.37 0.00 295,442.84 0.00 0.00 2,042,840.34

27.002016 0.00 0.00 0.00 49,607.96 0.00 146,696.28 0.00 0.00 2,120,388.02

13.002017 0.00 0.00 0.00 48,035.45 0.00 29,854.34 0.00 0.00 2,135,043.36

7.002018 0.00 0.00 13,488.73 28,288.98 0.00 -453.06 0.00 0.00 2,134,865.80

6.002019 0.00 0.00 0.00 10,089.96 0.00 5,044.78 0.00 0.00 2,136,977.21

0.002020 0.00 0.00 6,647.71 0.00 0.00 -6,647.71 0.00 0.00 2,134,640.07

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 216,539.53 402,330.35 0.00 2,893,337.16 0.00

0.00 0.00

0.00

0.00

2,134,640.07

0.00 0.00

81.11 0.00

0.00

50,454.96 278.79

0.00 0.00 0.00 0.00 0.00 0.00

48,396.18 0.00 43,299.13 0.00 3,512,207.04 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

12.34 / 14.36

0.94

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

2,477,038.26 2,134,640.07 1,851,158.59

20.00% :50.00% :

1,614,924.32 792,861.18

PW 535,891.0370.00% :

188,184.16

>1000

Hud Eco Detailed.rpt 10

Page 207: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

BUA BAN Field

03/30/2010 11:19:40AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

72.59 0.00 917.06 0.00 829.53 0.00 60,215.25 0.00 0.002010

76.59 0.00 7,081.19 0.00 6,251.77 0.00 478,822.80 0.00 0.002011

79.59 0.00 6,892.36 0.00 6,097.20 0.00 485,276.31 0.00 0.002012

82.59 0.00 5,126.06 0.00 4,577.53 0.00 378,058.50 0.00 0.002013

85.59 0.00 3,312.05 0.00 3,002.37 0.00 256,972.74 0.00 0.002014

87.43 0.00 2,800.17 0.00 2,562.86 0.00 224,071.13 0.00 0.002015

89.31 0.00 1,321.23 0.00 1,232.96 0.00 110,115.32 0.00 0.002016

91.23 0.00 349.88 0.00 331.50 0.00 30,242.94 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

18.002010 0.00 0.00 104,338.45 8,341.94 0.00 -52,465.14 0.00 0.00 -50,196.25

32.002011 0.00 0.00 50,495.99 20,303.38 0.00 408,023.42 0.00 0.00 301,576.20

33.002012 0.00 0.00 0.00 20,709.83 0.00 464,566.48 0.00 0.00 664,648.63

33.002013 0.00 0.00 0.00 21,123.64 0.00 356,934.86 0.00 0.00 917,684.22

15.002014 0.00 0.00 0.00 21,546.11 0.00 235,426.62 0.00 0.00 1,068,352.39

12.002015 0.00 0.00 0.00 21,977.04 0.00 202,094.09 0.00 0.00 1,185,492.77

10.002016 0.00 0.00 0.00 22,416.98 0.00 87,698.33 0.00 0.00 1,231,925.54

3.002017 0.00 0.00 0.00 20,301.16 0.00 9,941.79 0.00 0.00 1,237,091.15

1.002018 0.00 0.00 13,488.73 0.00 0.00 -13,488.73 0.00 0.00 1,231,302.96

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 168,323.17 156,720.08 0.00 1,698,731.73 0.00

0.00 0.00

0.00

0.00

1,231,302.96

0.00 0.00

81.32 0.00

0.00

27,800.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

27,800.00 0.00 24,885.72 0.00 2,023,774.98 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

9.38 / 11.09

1.26

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

1,442,479.23 1,231,302.96 1,056,296.76

20.00% :50.00% :

910,455.02 405,852.41

PW 251,420.5770.00% :

147,014.48

255.19

Hud Eco Detailed.rpt 11

Page 208: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

BUA BAN FieldProved Rsv Class

03/30/2010 11:19:40AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

72.59 0.00 452.80 0.00 418.29 0.00 30,363.45 0.00 0.002010

76.59 0.00 3,216.64 0.00 2,922.82 0.00 223,858.98 0.00 0.002011

79.59 0.00 2,280.04 0.00 2,101.65 0.00 167,270.31 0.00 0.002012

82.59 0.00 1,232.91 0.00 1,153.71 0.00 95,284.64 0.00 0.002013

85.59 0.00 0.83 0.00 0.79 0.00 67.62 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

12.002010 0.00 0.00 95,724.95 8,341.94 0.00 -73,703.44 0.00 0.00 -69,555.33

21.002011 0.00 0.00 7,140.00 20,303.38 0.00 196,415.60 0.00 0.00 99,661.27

21.002012 0.00 0.00 0.00 20,709.83 0.00 146,560.48 0.00 0.00 214,378.06

21.002013 0.00 0.00 0.00 21,123.64 0.00 74,161.00 0.00 0.00 267,527.14

3.002014 0.00 0.00 0.00 43.72 0.00 23.90 0.00 0.00 267,544.59

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 267,544.59

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 267,544.59

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 267,544.59

0.002018 0.00 0.00 4,496.24 0.00 0.00 -4,496.24 0.00 0.00 265,615.19

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 107,361.19 70,522.52 0.00 338,961.30 0.00

0.00 0.00

0.00

0.00

265,615.19

0.00 0.00

78.34 0.00

0.00

7,183.23 0.00

0.00 0.00 0.00 0.00 0.00 0.00

7,183.23 0.00 6,597.26 0.00 516,845.01 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

3.71 / 4.16

1.39

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

300,124.16 265,615.19 234,988.99

20.00% :50.00% :

207,822.63 98,171.03

PW 57,819.5070.00% :

98,128.03

143.81

Hud Eco Detailed.rpt 12

Page 209: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

BUA BAN FieldProved Rsv Class

Undeveloped Rsv Category

03/30/2010 11:19:40AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

72.59 0.00 452.80 0.00 418.29 0.00 30,363.45 0.00 0.002010

76.59 0.00 3,216.64 0.00 2,922.82 0.00 223,858.98 0.00 0.002011

79.59 0.00 2,280.04 0.00 2,101.65 0.00 167,270.31 0.00 0.002012

82.59 0.00 1,232.91 0.00 1,153.71 0.00 95,284.64 0.00 0.002013

85.59 0.00 0.83 0.00 0.79 0.00 67.62 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

12.002010 0.00 0.00 95,724.95 8,341.94 0.00 -73,703.44 0.00 0.00 -69,555.33

21.002011 0.00 0.00 7,140.00 20,303.38 0.00 196,415.60 0.00 0.00 99,661.27

21.002012 0.00 0.00 0.00 20,709.83 0.00 146,560.48 0.00 0.00 214,378.06

21.002013 0.00 0.00 0.00 21,123.64 0.00 74,161.00 0.00 0.00 267,527.14

3.002014 0.00 0.00 0.00 43.72 0.00 23.90 0.00 0.00 267,544.59

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 267,544.59

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 267,544.59

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 267,544.59

0.002018 0.00 0.00 4,496.24 0.00 0.00 -4,496.24 0.00 0.00 265,615.19

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 107,361.19 70,522.52 0.00 338,961.30 0.00

0.00 0.00

0.00

0.00

265,615.19

0.00 0.00

78.34 0.00

0.00

7,183.23 0.00

0.00 0.00 0.00 0.00 0.00 0.00

7,183.23 0.00 6,597.26 0.00 516,845.01 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

3.71 / 4.16

1.39

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

300,124.16 265,615.19 234,988.99

20.00% :50.00% :

207,822.63 98,171.03

PW 57,819.5070.00% :

98,128.03

143.81

Hud Eco Detailed.rpt 13

Page 210: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN A - PUD 1,212/31/2009

72.59 0.00 169.40 0.00 156.49 0.00 11,359.58 0.00 0.002010

76.59 0.00 308.90 0.00 280.68 0.00 21,497.40 0.00 0.002011

79.59 0.00 210.47 0.00 194.00 0.00 15,440.59 0.00 0.002012

82.59 0.00 67.36 0.00 63.03 0.00 5,205.89 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

2.002010 0.00 0.00 7,045.72 0.00 0.00 4,313.86 0.00 0.00 3,686.88

2.002011 0.00 0.00 0.00 0.00 0.00 21,497.40 0.00 0.00 22,268.09

2.002012 0.00 0.00 0.00 0.00 0.00 15,440.59 0.00 0.00 34,348.35

2.002013 0.00 0.00 0.00 0.00 0.00 5,205.89 0.00 0.00 38,130.78

0.002014 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 38,130.78

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 38,130.78

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 38,130.78

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 38,130.78

0.002018 0.00 0.00 473.29 0.00 0.00 -473.29 0.00 0.00 37,927.68

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 7,519.01 0.00 0.00 45,984.45 0.00

0.00 0.00

0.00

0.00

37,927.68

0.00 0.00

77.07 0.00

0.00

756.13 0.00

0.00 0.00 0.00 0.00 0.00 0.00

756.13 0.00 694.21 0.00 53,503.46 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

32.03

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.92377000

06/04/2013

6.40 / 7.12

0.85

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

41,751.98 37,927.68 34,475.93

20.00% :50.00% :

31,361.35 18,051.77

PW 12,634.8070.00% :

7,022.02

36,500.00 12,166.67

230.25

Hud Eco Detailed.rpt 14

Page 211: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN A - PUD 3,4,5,612/31/2009

72.59 0.00 210.26 0.00 194.23 0.00 14,099.10 0.00 0.002010

76.59 0.00 658.95 0.00 598.76 0.00 45,859.12 0.00 0.002011

79.59 0.00 448.98 0.00 413.85 0.00 32,938.49 0.00 0.002012

82.59 0.00 194.07 0.00 181.60 0.00 14,998.49 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

4.002010 0.00 0.00 14,138.16 0.00 0.00 -39.06 0.00 0.00 -531.29

4.002011 0.00 0.00 0.00 0.00 0.00 45,859.12 0.00 0.00 39,106.91

4.002012 0.00 0.00 0.00 0.00 0.00 32,938.49 0.00 0.00 64,877.00

4.002013 0.00 0.00 0.00 0.00 0.00 14,998.49 0.00 0.00 75,690.85

0.002014 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 75,690.85

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 75,690.85

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 75,690.85

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 75,690.85

0.002018 0.00 0.00 946.58 0.00 0.00 -946.58 0.00 0.00 75,284.66

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 15,084.73 0.00 0.00 92,810.47 0.00

0.00 0.00

0.00

0.00

75,284.66

0.00 0.00

77.71 0.00

0.00

1,512.26 0.00

0.00 0.00 0.00 0.00 0.00 0.00

1,512.26 0.00 1,388.44 0.00 107,895.21 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

32.03

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.92377000

08/04/2013

6.43 / 7.15

1.02

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

83,565.69 75,284.66 67,872.34

20.00% :50.00% :

61,238.02 33,591.36

PW 22,786.0270.00% :

13,863.57

73,000.00 24,333.33

231.03

Hud Eco Detailed.rpt 15

Page 212: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN B - PUD 7,8,9,1012/31/2009

72.59 0.00 73.14 0.00 67.57 0.00 4,904.77 0.00 0.002010

76.59 0.00 702.85 0.00 638.65 0.00 48,914.27 0.00 0.002011

79.59 0.00 478.89 0.00 441.42 0.00 35,132.86 0.00 0.002012

82.59 0.00 257.37 0.00 240.84 0.00 19,890.77 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

4.002010 0.00 0.00 14,185.79 0.00 0.00 -9,281.03 0.00 0.00 -8,818.03

4.002011 0.00 0.00 0.00 0.00 0.00 48,914.27 0.00 0.00 33,460.88

4.002012 0.00 0.00 0.00 0.00 0.00 35,132.86 0.00 0.00 60,947.78

4.002013 0.00 0.00 0.00 0.00 0.00 19,890.77 0.00 0.00 75,181.77

0.002014 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 75,181.77

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 75,181.77

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 75,181.77

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 75,181.77

0.002018 0.00 0.00 946.58 0.00 0.00 -946.58 0.00 0.00 74,775.58

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 15,132.37 0.00 0.00 93,710.30 0.00

0.00 0.00

0.00

0.00

74,775.58

0.00 0.00

78.39 0.00

0.00

1,512.26 0.00

0.00 0.00 0.00 0.00 0.00 0.00

1,512.26 0.00 1,388.48 0.00 108,842.67 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

32.03

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.92377000

10/04/2013

6.47 / 7.19

1.18

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

83,681.90 74,775.58 66,869.18

20.00% :50.00% :

59,849.48 31,316.54

PW 20,606.5870.00% :

13,682.57

73,000.00 24,333.33

233.56

Hud Eco Detailed.rpt 16

Page 213: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN B - PUD 11,12,13,1412/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 726.27 0.00 659.93 0.00 50,544.05 0.00 0.002011

79.59 0.00 494.85 0.00 456.13 0.00 36,303.46 0.00 0.002012

82.59 0.00 291.14 0.00 272.44 0.00 22,500.59 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

0.002010 0.00 0.00 14,232.82 0.00 0.00 -14,232.82 0.00 0.00 -13,100.69

4.002011 0.00 0.00 0.00 0.00 0.00 50,544.05 0.00 0.00 30,586.92

4.002012 0.00 0.00 0.00 0.00 0.00 36,303.46 0.00 0.00 58,989.66

4.002013 0.00 0.00 0.00 0.00 0.00 22,500.59 0.00 0.00 75,031.13

0.002014 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 75,031.13

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 75,031.13

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 75,031.13

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 75,031.13

0.002018 0.00 0.00 946.58 0.00 0.00 -946.58 0.00 0.00 74,624.95

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 15,179.40 0.00 0.00 94,168.71 0.00

0.00 0.00

0.00

0.00

74,624.95

0.00 0.00

78.75 0.00

0.00

1,512.26 0.00

0.00 0.00 0.00 0.00 0.00 0.00

1,512.26 0.00 1,388.50 0.00 109,348.10 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

32.03

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.92377000

11/04/2013

6.53 / 7.20

1.26

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

83,795.72 74,624.95 66,519.43

20.00% :50.00% :

59,353.75 30,607.52

PW 20,041.8870.00% :

13,506.88

73,000.00 24,333.33

273.81

Hud Eco Detailed.rpt 17

Page 214: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN A - PUD 15,16,1712/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 506.17 0.00 459.93 0.00 35,226.12 0.00 0.002011

79.59 0.00 383.50 0.00 353.50 0.00 28,134.80 0.00 0.002012

82.59 0.00 244.53 0.00 228.82 0.00 18,898.02 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

0.002010 0.00 0.00 10,692.00 0.00 0.00 -10,692.00 0.00 0.00 -9,761.35

3.002011 0.00 0.00 0.00 0.00 0.00 35,226.12 0.00 0.00 20,540.34

3.002012 0.00 0.00 0.00 0.00 0.00 28,134.80 0.00 0.00 42,552.16

3.002013 0.00 0.00 0.00 0.00 0.00 18,898.02 0.00 0.00 55,975.78

0.002014 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 55,975.78

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 55,975.78

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 55,975.78

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 55,975.78

0.002018 0.00 0.00 709.93 0.00 0.00 -709.93 0.00 0.00 55,671.14

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 11,401.94 0.00 0.00 70,857.01 0.00

0.00 0.00

0.00

0.00

55,671.14

0.00 0.00

78.92 0.00

0.00

1,134.19 0.00

0.00 0.00 0.00 0.00 0.00 0.00

1,134.19 0.00 1,042.25 0.00 82,258.94 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

32.03

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.92377000

12/05/2013

6.53 / 7.21

1.35

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

62,780.73 55,671.14 49,413.55

20.00% :50.00% :

43,904.09 22,077.34

PW 14,217.8370.00% :

10,065.99

54,750.00 18,250.00

272.15

Hud Eco Detailed.rpt 18

Page 215: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN B - PUD 18,1912/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 313.50 0.00 284.87 0.00 21,818.01 0.00 0.002011

79.59 0.00 263.35 0.00 242.75 0.00 19,320.11 0.00 0.002012

82.59 0.00 178.44 0.00 166.98 0.00 13,790.88 0.00 0.002013

85.59 0.00 0.83 0.00 0.79 0.00 67.62 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

0.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

2.002011 0.00 0.00 7,140.00 0.00 0.00 14,678.01 0.00 0.00 12,223.60

2.002012 0.00 0.00 0.00 0.00 0.00 19,320.11 0.00 0.00 27,339.07

2.002013 0.00 0.00 0.00 0.00 0.00 13,790.88 0.00 0.00 37,105.19

2.002014 0.00 0.00 0.00 0.00 0.00 67.62 0.00 0.00 37,150.58

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 37,150.58

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 37,150.58

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 37,150.58

0.002018 0.00 0.00 473.29 0.00 0.00 -473.29 0.00 0.00 36,947.48

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 7,613.29 0.00 0.00 47,383.33 0.00

0.00 0.00

0.00

0.00

36,947.48

0.00 0.00

79.09 0.00

0.00

756.13 0.00

0.00 0.00 0.00 0.00 0.00 0.00

756.13 0.00 695.38 0.00 54,996.62 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

32.03

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.92377000

01/02/2014

6.54 / 7.22

1.43

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

41,823.11 36,947.48 32,672.37

20.00% :50.00% :

28,922.31 14,233.22

PW 9,041.1170.00% :

6,666.75

36,500.00 12,166.67

276.68

Hud Eco Detailed.rpt 19

Page 216: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, THAILAND

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN A&B- PUD LOE12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002012

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 8,341.94 0.00 -8,341.94 0.00 0.00 -7,710.60

1.002011 0.00 0.00 0.00 20,303.38 0.00 -20,303.38 0.00 0.00 -25,205.25

1.002012 0.00 0.00 0.00 20,709.83 0.00 -20,709.83 0.00 0.00 -41,355.72

1.002013 0.00 0.00 0.00 21,123.64 0.00 -21,123.64 0.00 0.00 -56,268.11

1.002014 0.00 0.00 0.00 43.72 0.00 -43.72 0.00 0.00 -56,296.06

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 70,522.52 0.00 -70,522.52 0.00

0.00 0.00

0.00

0.00

-56,296.06

0.00 0.00

0.00 0.00

0.00

0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

0.00

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

12/31/2014

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

-62,918.26-56,296.06-50,514.21

20.00% :50.00% :

-45,453.01-25,498.32

PW -18,190.4270.00% :

0.00

0.00 0.00

0.00

Hud Eco Detailed.rpt 20

Page 217: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN A&B- PUD CAPITAL12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002012

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002013

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 35,430.46 0.00 0.00 -35,430.46 0.00 0.00 -33,320.24

1.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -33,320.24

1.002012 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -33,320.24

1.002013 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -33,320.24

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 35,430.46 0.00 0.00 -35,430.46 0.00

0.00 0.00

0.00

0.00

-33,320.24

0.00 0.00

0.00 0.00

0.00

0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

0.00

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

12/31/2013

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

-34,356.71-33,320.24-32,319.59

20.00% :50.00% :

-31,353.37-26,208.41

PW -23,318.3070.00% :

33,320.24

0.00 0.00

0.00

Hud Eco Detailed.rpt 21

Page 218: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

BUA BAN FieldProbable Rsv Class

03/30/2010 11:19:40AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

72.59 0.00 464.26 0.00 411.24 0.00 29,851.80 0.00 0.002010

76.59 0.00 3,864.55 0.00 3,328.94 0.00 254,963.82 0.00 0.002011

79.59 0.00 3,335.73 0.00 2,910.46 0.00 231,643.41 0.00 0.002012

82.59 0.00 2,696.74 0.00 2,388.85 0.00 197,294.71 0.00 0.002013

85.59 0.00 2,186.78 0.00 2,009.70 0.00 172,010.53 0.00 0.002014

87.43 0.00 1,743.36 0.00 1,620.77 0.00 141,703.92 0.00 0.002015

89.31 0.00 325.35 0.00 309.08 0.00 27,604.28 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

5.002010 0.00 0.00 8,613.50 0.00 0.00 21,238.30 0.00 0.00 19,359.08

10.002011 0.00 0.00 43,355.99 0.00 0.00 211,607.82 0.00 0.00 201,914.93

10.002012 0.00 0.00 0.00 0.00 0.00 231,643.41 0.00 0.00 382,883.19

10.002013 0.00 0.00 0.00 0.00 0.00 197,294.71 0.00 0.00 522,397.53

10.002014 0.00 0.00 0.00 21,502.39 0.00 150,508.13 0.00 0.00 618,768.66

10.002015 0.00 0.00 0.00 21,977.04 0.00 119,726.89 0.00 0.00 688,234.00

8.002016 0.00 0.00 0.00 18,538.65 0.00 9,065.63 0.00 0.00 693,469.32

1.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 693,469.32

1.002018 0.00 0.00 8,992.48 0.00 0.00 -8,992.48 0.00 0.00 689,610.53

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 60,961.98 62,018.07 0.00 932,092.43 0.00

0.00 0.00

0.00

0.00

689,610.53

0.00 0.00

81.29 0.00

0.00

14,616.77 0.00

0.00 0.00 0.00 0.00 0.00 0.00

14,616.77 0.00 12,979.04 0.00 1,055,072.48 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

15.11 / 16.29

1.15

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

799,784.78 689,610.53 597,480.88

20.00% :50.00% :

520,102.61 247,627.55

PW 162,278.7970.00% :

48,886.46

784.26

Hud Eco Detailed.rpt 22

Page 219: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

BUA BAN FieldProbable Rsv Class

Undeveloped Rsv Category

03/30/2010 11:19:40AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

72.59 0.00 464.26 0.00 411.24 0.00 29,851.80 0.00 0.002010

76.59 0.00 3,864.55 0.00 3,328.94 0.00 254,963.82 0.00 0.002011

79.59 0.00 3,335.73 0.00 2,910.46 0.00 231,643.41 0.00 0.002012

82.59 0.00 2,696.74 0.00 2,388.85 0.00 197,294.71 0.00 0.002013

85.59 0.00 2,186.78 0.00 2,009.70 0.00 172,010.53 0.00 0.002014

87.43 0.00 1,743.36 0.00 1,620.77 0.00 141,703.92 0.00 0.002015

89.31 0.00 325.35 0.00 309.08 0.00 27,604.28 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

5.002010 0.00 0.00 8,613.50 0.00 0.00 21,238.30 0.00 0.00 19,359.08

10.002011 0.00 0.00 43,355.99 0.00 0.00 211,607.82 0.00 0.00 201,914.93

10.002012 0.00 0.00 0.00 0.00 0.00 231,643.41 0.00 0.00 382,883.19

10.002013 0.00 0.00 0.00 0.00 0.00 197,294.71 0.00 0.00 522,397.53

10.002014 0.00 0.00 0.00 21,502.39 0.00 150,508.13 0.00 0.00 618,768.66

10.002015 0.00 0.00 0.00 21,977.04 0.00 119,726.89 0.00 0.00 688,234.00

8.002016 0.00 0.00 0.00 18,538.65 0.00 9,065.63 0.00 0.00 693,469.32

1.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 693,469.32

1.002018 0.00 0.00 8,992.48 0.00 0.00 -8,992.48 0.00 0.00 689,610.53

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 60,961.98 62,018.07 0.00 932,092.43 0.00

0.00 0.00

0.00

0.00

689,610.53

0.00 0.00

81.29 0.00

0.00

14,616.77 0.00

0.00 0.00 0.00 0.00 0.00 0.00

14,616.77 0.00 12,979.04 0.00 1,055,072.48 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

15.11 / 16.29

1.15

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

799,784.78 689,610.53 597,480.88

20.00% :50.00% :

520,102.61 247,627.55

PW 162,278.7970.00% :

48,886.46

784.26

Hud Eco Detailed.rpt 23

Page 220: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Probable Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN A - PROB INCR 1,212/31/2009

72.59 0.00 175.64 0.00 155.59 0.00 11,293.98 0.00 0.002010

76.59 0.00 361.65 0.00 311.53 0.00 23,860.21 0.00 0.002011

79.59 0.00 293.99 0.00 256.52 0.00 20,416.03 0.00 0.002012

82.59 0.00 237.67 0.00 210.53 0.00 17,388.08 0.00 0.002013

85.59 0.00 192.73 0.00 177.12 0.00 15,159.73 0.00 0.002014

87.43 0.00 130.39 0.00 121.22 0.00 10,598.45 0.00 0.002015

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 1,006.53 0.00 0.00 10,287.45 0.00 0.00 9,468.43

1.002011 0.00 0.00 0.00 0.00 0.00 23,860.21 0.00 0.00 30,062.20

1.002012 0.00 0.00 0.00 0.00 0.00 20,416.03 0.00 0.00 46,011.95

1.002013 0.00 0.00 0.00 0.00 0.00 17,388.08 0.00 0.00 58,307.70

1.002014 0.00 0.00 0.00 0.00 0.00 15,159.73 0.00 0.00 68,012.24

1.002015 0.00 0.00 0.00 0.00 0.00 10,598.45 0.00 0.00 74,205.38

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 1,006.53 0.00 0.00 97,709.95 0.00

0.00 0.00

0.00

0.00

74,205.38

0.00 0.00

80.09 0.00

0.00

1,392.07 0.00

0.00 0.00 0.00 0.00 0.00 0.00

1,392.07 0.00 1,232.51 0.00 98,716.48 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

18.92

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.88579900

10/25/2015

77.20 / 98.08

0.62

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

84,902.88 74,205.38 65,219.83

20.00% :50.00% :

57,630.06 30,247.51

PW 21,195.9770.00% :

974.13

36,500.00 12,166.67

776.82

Hud Eco Detailed.rpt 24

Page 221: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Probable Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN A - PROB INCR 3,4,5,612/31/2009

72.59 0.00 214.92 0.00 190.38 0.00 13,819.47 0.00 0.002010

76.59 0.00 749.10 0.00 645.28 0.00 49,421.78 0.00 0.002011

79.59 0.00 608.94 0.00 531.32 0.00 42,287.82 0.00 0.002012

82.59 0.00 492.29 0.00 436.08 0.00 36,016.02 0.00 0.002013

85.59 0.00 399.19 0.00 366.87 0.00 31,400.41 0.00 0.002014

87.43 0.00 319.71 0.00 297.23 0.00 25,986.71 0.00 0.002015

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 2,019.74 0.00 0.00 11,799.73 0.00 0.00 10,746.19

1.002011 0.00 0.00 0.00 0.00 0.00 49,421.78 0.00 0.00 53,402.17

1.002012 0.00 0.00 0.00 0.00 0.00 42,287.82 0.00 0.00 86,438.96

1.002013 0.00 0.00 0.00 0.00 0.00 36,016.02 0.00 0.00 111,907.21

1.002014 0.00 0.00 0.00 0.00 0.00 31,400.41 0.00 0.00 132,008.27

1.002015 0.00 0.00 0.00 0.00 0.00 25,986.71 0.00 0.00 147,077.46

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 2,019.74 0.00 0.00 196,912.48 0.00

0.00 0.00

0.00

0.00

147,077.46

0.00 0.00

80.63 0.00

0.00

2,784.15 0.00

0.00 0.00 0.00 0.00 0.00 0.00

2,784.15 0.00 2,467.16 0.00 198,932.21 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

18.92

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.88579900

12/25/2015

77.53 / 98.49

0.78

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

169,683.65 147,077.46 128,201.72

20.00% :50.00% :

112,351.14 56,150.33

PW 38,106.5070.00% :

1,922.48

73,000.00 24,333.33

776.79

Hud Eco Detailed.rpt 25

Page 222: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Probable Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN B - PROB INCR 7,8,9,1012/31/2009

72.59 0.00 73.69 0.00 65.28 0.00 4,738.35 0.00 0.002010

76.59 0.00 775.80 0.00 668.28 0.00 51,183.78 0.00 0.002011

79.59 0.00 630.65 0.00 550.26 0.00 43,795.49 0.00 0.002012

82.59 0.00 509.84 0.00 451.63 0.00 37,300.08 0.00 0.002013

85.59 0.00 413.43 0.00 379.95 0.00 32,519.92 0.00 0.002014

87.43 0.00 335.25 0.00 311.67 0.00 27,249.45 0.00 0.002015

89.31 0.00 45.49 0.00 43.22 0.00 3,859.92 0.00 0.002016

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 2,026.54 0.00 0.00 2,711.81 0.00 0.00 2,410.46

1.002011 0.00 0.00 0.00 0.00 0.00 51,183.78 0.00 0.00 46,587.23

1.002012 0.00 0.00 0.00 0.00 0.00 43,795.49 0.00 0.00 80,801.86

1.002013 0.00 0.00 0.00 0.00 0.00 37,300.08 0.00 0.00 107,178.12

1.002014 0.00 0.00 0.00 0.00 0.00 32,519.92 0.00 0.00 127,995.83

1.002015 0.00 0.00 0.00 0.00 0.00 27,249.45 0.00 0.00 143,787.25

1.002016 0.00 0.00 0.00 0.00 0.00 3,859.92 0.00 0.00 145,894.84

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 2,026.54 0.00 0.00 198,620.44 0.00

0.00 0.00

0.00

0.00

145,894.84

0.00 0.00

81.22 0.00

0.00

2,784.15 0.00

0.00 0.00 0.00 0.00 0.00 0.00

2,784.15 0.00 2,470.29 0.00 200,646.99 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

18.92

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.88579900

02/24/2016

77.94 / 99.01

0.95

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

169,728.37 145,894.84 126,119.59

20.00% :50.00% :

109,616.66 52,172.07

PW 34,296.4370.00% :

1,896.63

73,000.00 24,333.33

785.63

Hud Eco Detailed.rpt 26

Page 223: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Probable Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN B - PROB INCR 11,12,13,1412/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 789.74 0.00 680.29 0.00 52,103.17 0.00 0.002011

79.59 0.00 641.97 0.00 560.15 0.00 44,582.16 0.00 0.002012

82.59 0.00 519.00 0.00 459.74 0.00 37,970.08 0.00 0.002013

85.59 0.00 420.85 0.00 386.77 0.00 33,104.05 0.00 0.002014

87.43 0.00 341.27 0.00 317.27 0.00 27,738.92 0.00 0.002015

89.31 0.00 71.32 0.00 67.75 0.00 6,050.78 0.00 0.002016

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

0.002010 0.00 0.00 2,033.26 0.00 0.00 -2,033.26 0.00 0.00 -1,871.53

1.002011 0.00 0.00 0.00 0.00 0.00 52,103.17 0.00 0.00 43,098.77

1.002012 0.00 0.00 0.00 0.00 0.00 44,582.16 0.00 0.00 77,927.97

1.002013 0.00 0.00 0.00 0.00 0.00 37,970.08 0.00 0.00 104,778.00

1.002014 0.00 0.00 0.00 0.00 0.00 33,104.05 0.00 0.00 125,969.65

1.002015 0.00 0.00 0.00 0.00 0.00 27,738.92 0.00 0.00 142,044.73

1.002016 0.00 0.00 0.00 0.00 0.00 6,050.78 0.00 0.00 145,334.85

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 2,033.26 0.00 0.00 199,515.89 0.00

0.00 0.00

0.00

0.00

145,334.85

0.00 0.00

81.53 0.00

0.00

2,784.15 0.00

0.00 0.00 0.00 0.00 0.00 0.00

2,784.15 0.00 2,471.97 0.00 201,549.15 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

18.92

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.88579900

03/26/2016

78.68 / 99.13

1.03

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

169,781.23 145,334.85 125,118.19

20.00% :50.00% :

108,301.95 50,331.46

PW 32,588.3770.00% :

1,871.53

73,000.00 24,333.33

>1000

Hud Eco Detailed.rpt 27

Page 224: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Probable Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN A - PROB INCR 15,16,1712/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 546.68 0.00 470.92 0.00 36,067.46 0.00 0.002011

79.59 0.00 490.13 0.00 427.66 0.00 34,037.22 0.00 0.002012

82.59 0.00 396.24 0.00 351.00 0.00 28,989.08 0.00 0.002013

85.59 0.00 321.31 0.00 295.29 0.00 25,274.01 0.00 0.002014

87.43 0.00 260.55 0.00 242.23 0.00 21,177.88 0.00 0.002015

89.31 0.00 73.20 0.00 69.54 0.00 6,210.75 0.00 0.002016

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

0.002010 0.00 0.00 1,527.43 0.00 0.00 -1,527.43 0.00 0.00 -1,394.48

1.002011 0.00 0.00 0.00 0.00 0.00 36,067.46 0.00 0.00 29,593.47

1.002012 0.00 0.00 0.00 0.00 0.00 34,037.22 0.00 0.00 56,184.58

1.002013 0.00 0.00 0.00 0.00 0.00 28,989.08 0.00 0.00 76,683.83

1.002014 0.00 0.00 0.00 0.00 0.00 25,274.01 0.00 0.00 92,863.05

1.002015 0.00 0.00 0.00 0.00 0.00 21,177.88 0.00 0.00 105,135.92

1.002016 0.00 0.00 0.00 0.00 0.00 6,210.75 0.00 0.00 108,499.13

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 1,527.43 0.00 0.00 150,228.97 0.00

0.00 0.00

0.00

0.00

108,499.13

0.00 0.00

81.74 0.00

0.00

2,088.11 0.00

0.00 0.00 0.00 0.00 0.00 0.00

2,088.11 0.00 1,856.63 0.00 151,756.40 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

18.92

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.88579900

04/26/2016

78.83 / 99.35

1.13

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

127,292.57 108,499.13

93,009.2220.00% :50.00% :

80,167.25 36,329.92

PW 23,138.2670.00% :

1,394.48

54,750.00 18,250.00

>1000

Hud Eco Detailed.rpt 28

Page 225: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Probable Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN B - PROB INCR 18,1912/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 336.51 0.00 289.88 0.00 22,201.59 0.00 0.002011

79.59 0.00 332.05 0.00 289.73 0.00 23,059.31 0.00 0.002012

82.59 0.00 268.44 0.00 237.79 0.00 19,639.33 0.00 0.002013

85.59 0.00 217.68 0.00 200.05 0.00 17,122.47 0.00 0.002014

87.43 0.00 176.51 0.00 164.10 0.00 14,347.45 0.00 0.002015

89.31 0.00 60.87 0.00 57.83 0.00 5,164.90 0.00 0.002016

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

0.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002011 0.00 0.00 1,020.00 0.00 0.00 21,181.59 0.00 0.00 18,073.17

1.002012 0.00 0.00 0.00 0.00 0.00 23,059.31 0.00 0.00 36,087.94

1.002013 0.00 0.00 0.00 0.00 0.00 19,639.33 0.00 0.00 49,975.63

1.002014 0.00 0.00 0.00 0.00 0.00 17,122.47 0.00 0.00 60,936.62

1.002015 0.00 0.00 0.00 0.00 0.00 14,347.45 0.00 0.00 69,251.17

1.002016 0.00 0.00 0.00 0.00 0.00 5,164.90 0.00 0.00 72,037.79

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 1,020.00 0.00 0.00 100,515.05 0.00

0.00 0.00

0.00

0.00

72,037.79

0.00 0.00

81.92 0.00

0.00

1,392.07 0.00

0.00 0.00 0.00 0.00 0.00 0.00

1,392.07 0.00 1,239.38 0.00 101,535.05 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

18.92

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.88579900

05/24/2016

79.04 / 99.54

1.20

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

84,841.05 72,037.79 61,517.24

20.00% :50.00% :

52,821.45 23,402.44

PW 14,686.3570.00% :

923.38

36,500.00 12,166.67

>1000

Hud Eco Detailed.rpt 29

Page 226: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Probable Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN B - PROB 20,2112/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 305.05 0.00 262.77 0.00 20,125.82 0.00 0.002011

79.59 0.00 338.01 0.00 294.83 0.00 23,465.39 0.00 0.002012

82.59 0.00 273.26 0.00 242.06 0.00 19,992.03 0.00 0.002013

85.59 0.00 221.59 0.00 203.64 0.00 17,429.94 0.00 0.002014

87.43 0.00 179.68 0.00 167.05 0.00 14,605.07 0.00 0.002015

89.31 0.00 74.46 0.00 70.74 0.00 6,317.93 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

0.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

2.002011 0.00 0.00 8,173.74 0.00 0.00 11,952.09 0.00 0.00 9,805.76

2.002012 0.00 0.00 0.00 0.00 0.00 23,465.39 0.00 0.00 28,137.78

2.002013 0.00 0.00 0.00 0.00 0.00 19,992.03 0.00 0.00 42,274.88

2.002014 0.00 0.00 0.00 0.00 0.00 17,429.94 0.00 0.00 53,432.71

2.002015 0.00 0.00 0.00 0.00 0.00 14,605.07 0.00 0.00 61,896.54

2.002016 0.00 0.00 0.00 0.00 0.00 6,317.93 0.00 0.00 65,291.41

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 65,291.41

0.002018 0.00 0.00 473.29 0.00 0.00 -473.29 0.00 0.00 65,088.32

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 8,647.02 0.00 0.00 93,289.17 0.00

0.00 0.00

0.00

0.00

65,088.32

0.00 0.00

82.13 0.00

0.00

1,392.06 0.00

0.00 0.00 0.00 0.00 0.00 0.00

1,392.06 0.00 1,241.10 0.00 101,936.19 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

18.92

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.88579900

06/24/2016

9.63 / 11.79

1.56

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

77,730.96 65,088.32 54,761.83

20.00% :50.00% :

46,283.75 18,317.20

PW 10,487.0670.00% :

7,540.29

36,500.00 12,166.67

249.80

Hud Eco Detailed.rpt 30

Page 227: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Probable Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN A&B- PROB LOE12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002012

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002012 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002013 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002014 0.00 0.00 0.00 21,502.39 0.00 -21,502.39 0.00 0.00 -13,741.86

1.002015 0.00 0.00 0.00 21,977.04 0.00 -21,977.04 0.00 0.00 -26,456.61

1.002016 0.00 0.00 0.00 18,538.65 0.00 -18,538.65 0.00 0.00 -36,163.70

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 62,018.07 0.00 -62,018.07 0.00

0.00 0.00

0.00

0.00

-36,163.70

0.00 0.00

0.00 0.00

0.00

0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

0.00

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

12/31/2016

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

-47,289.30-36,163.70-27,735.10

20.00% :50.00% :

-21,331.13-4,671.73

PW -1,784.2170.00% :

0.00

0.00 0.00

0.00

Hud Eco Detailed.rpt 31

Page 228: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Probable Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN A&B- PROB CAPITAL12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002012

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002011 0.00 0.00 34,162.26 0.00 0.00 -34,162.26 0.00 0.00 -28,707.84

1.002012 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -28,707.84

1.002013 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -28,707.84

1.002014 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -28,707.84

1.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -28,707.84

1.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -28,707.84

1.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -28,707.84

1.002018 0.00 0.00 8,519.20 0.00 0.00 -8,519.20 0.00 0.00 -32,363.54

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 42,681.45 0.00 0.00 -42,681.45 0.00

0.00 0.00

0.00

0.00

-32,363.54

0.00 0.00

0.00 0.00

0.00

0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

0.00

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

06/30/2018

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

-36,886.63-32,363.54-28,731.64

20.00% :50.00% :

-25,738.53-14,651.66

PW -10,435.9470.00% :

32,363.54

0.00 0.00

0.00

Hud Eco Detailed.rpt 32

Page 229: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

BUA BAN FieldPossible Rsv Class

03/30/2010 11:19:40AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

79.59 0.00 1,276.58 0.00 1,085.09 0.00 86,362.59 0.00 0.002012

82.59 0.00 1,196.41 0.00 1,034.98 0.00 85,479.14 0.00 0.002013

85.59 0.00 1,124.44 0.00 991.88 0.00 84,894.59 0.00 0.002014

87.43 0.00 1,056.81 0.00 942.09 0.00 82,367.21 0.00 0.002015

89.31 0.00 995.88 0.00 923.87 0.00 82,511.03 0.00 0.002016

91.23 0.00 349.88 0.00 331.50 0.00 30,242.94 0.00 0.002017

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

2.002012 0.00 0.00 0.00 0.00 0.00 86,362.59 0.00 0.00 67,387.38

2.002013 0.00 0.00 0.00 0.00 0.00 85,479.14 0.00 0.00 127,759.54

2.002014 0.00 0.00 0.00 0.00 0.00 84,894.59 0.00 0.00 182,039.14

2.002015 0.00 0.00 0.00 0.00 0.00 82,367.21 0.00 0.00 229,714.19

2.002016 0.00 0.00 0.00 3,878.34 0.00 78,632.70 0.00 0.00 270,911.63

2.002017 0.00 0.00 0.00 20,301.16 0.00 9,941.79 0.00 0.00 276,077.24

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 24,179.49 0.00 427,678.00 0.00

0.00 0.00

0.00

0.00

276,077.24

0.00 0.00

85.10 0.00

0.00

6,000.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

6,000.00 0.00 5,309.42 0.00 451,857.49 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

342,570.29 276,077.24 223,826.89

20.00% :50.00% :

182,529.78 60,053.83

PW 31,322.2870.00% :

0.00

0.00

Hud Eco Detailed.rpt 33

Page 230: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

BUA BAN FieldPossible Rsv Class

Undeveloped Rsv Category

03/30/2010 11:19:40AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

79.59 0.00 1,276.58 0.00 1,085.09 0.00 86,362.59 0.00 0.002012

82.59 0.00 1,196.41 0.00 1,034.98 0.00 85,479.14 0.00 0.002013

85.59 0.00 1,124.44 0.00 991.88 0.00 84,894.59 0.00 0.002014

87.43 0.00 1,056.81 0.00 942.09 0.00 82,367.21 0.00 0.002015

89.31 0.00 995.88 0.00 923.87 0.00 82,511.03 0.00 0.002016

91.23 0.00 349.88 0.00 331.50 0.00 30,242.94 0.00 0.002017

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

2.002012 0.00 0.00 0.00 0.00 0.00 86,362.59 0.00 0.00 67,387.38

2.002013 0.00 0.00 0.00 0.00 0.00 85,479.14 0.00 0.00 127,759.54

2.002014 0.00 0.00 0.00 0.00 0.00 84,894.59 0.00 0.00 182,039.14

2.002015 0.00 0.00 0.00 0.00 0.00 82,367.21 0.00 0.00 229,714.19

2.002016 0.00 0.00 0.00 3,878.34 0.00 78,632.70 0.00 0.00 270,911.63

2.002017 0.00 0.00 0.00 20,301.16 0.00 9,941.79 0.00 0.00 276,077.24

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 24,179.49 0.00 427,678.00 0.00

0.00 0.00

0.00

0.00

276,077.24

0.00 0.00

85.10 0.00

0.00

6,000.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

6,000.00 0.00 5,309.42 0.00 451,857.49 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

342,570.29 276,077.24 223,826.89

20.00% :50.00% :

182,529.78 60,053.83

PW 31,322.2870.00% :

0.00

0.00

Hud Eco Detailed.rpt 34

Page 231: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Possible Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN A&B - POSS INCR12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

79.59 0.00 1,276.58 0.00 1,085.09 0.00 86,362.59 0.00 0.002012

82.59 0.00 1,196.41 0.00 1,034.98 0.00 85,479.14 0.00 0.002013

85.59 0.00 1,124.44 0.00 991.88 0.00 84,894.59 0.00 0.002014

87.43 0.00 1,056.81 0.00 942.09 0.00 82,367.21 0.00 0.002015

89.31 0.00 995.88 0.00 923.87 0.00 82,511.03 0.00 0.002016

91.23 0.00 349.88 0.00 331.50 0.00 30,242.94 0.00 0.002017

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

0.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002012 0.00 0.00 0.00 0.00 0.00 86,362.59 0.00 0.00 67,387.38

1.002013 0.00 0.00 0.00 0.00 0.00 85,479.14 0.00 0.00 127,759.54

1.002014 0.00 0.00 0.00 0.00 0.00 84,894.59 0.00 0.00 182,039.14

1.002015 0.00 0.00 0.00 0.00 0.00 82,367.21 0.00 0.00 229,714.19

1.002016 0.00 0.00 0.00 0.00 0.00 82,511.03 0.00 0.00 272,942.37

1.002017 0.00 0.00 0.00 0.00 0.00 30,242.94 0.00 0.00 287,730.79

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 451,857.49 0.00

0.00 0.00

0.00

0.00

287,730.79

0.00 0.00

85.10 0.00

0.00

6,000.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

6,000.00 0.00 5,309.42 0.00 451,857.49 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

6.02

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

05/14/2017

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

359,339.18 287,730.79 231,942.20

20.00% :50.00% :

188,192.73 60,736.10

PW 31,495.4970.00% :

0.00

109,500.00 78,460.32

0.00

Hud Eco Detailed.rpt 35

Page 232: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Possible Undeveloped

BUA BAN

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

BUA BAN A&B- POSS LOE12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002012

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002012 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002013 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002014 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002016 0.00 0.00 0.00 3,878.34 0.00 -3,878.34 0.00 0.00 -2,030.75

1.002017 0.00 0.00 0.00 20,301.16 0.00 -20,301.16 0.00 0.00 -11,653.55

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 24,179.49 0.00 -24,179.49 0.00

0.00 0.00

0.00

0.00

-11,653.55

0.00 0.00

0.00 0.00

0.00

0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

0.00

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

12/31/2017

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

-16,768.89-11,653.55

-8,115.3120.00% :50.00% :

-5,662.94-682.27

PW -173.2170.00% :

0.00

0.00 0.00

0.00

Hud Eco Detailed.rpt 36

Page 233: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA EOCENE Field

03/30/2010 11:19:40AMDate :

15.87

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

36.33

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

72.59 0.00 58.98 0.00 54.48 0.00 3,954.95 0.00 0.002010

76.59 0.00 550.37 0.00 475.73 0.00 36,436.37 0.00 0.002011

79.59 0.00 1,731.32 0.00 1,481.23 0.00 117,890.78 0.00 0.002012

82.59 0.00 1,098.33 0.00 956.24 0.00 78,975.78 0.00 0.002013

85.59 0.00 627.83 0.00 554.81 0.00 47,486.40 0.00 0.002014

87.43 0.00 488.92 0.00 436.54 0.00 38,167.08 0.00 0.002015

89.31 0.00 399.45 0.00 370.78 0.00 33,114.59 0.00 0.002016

91.23 0.00 332.47 0.00 315.02 0.00 28,739.26 0.00 0.002017

93.18 0.00 281.99 0.00 267.89 0.00 24,961.62 0.00 0.002018

95.17 0.00 61.00 0.00 57.95 0.00 5,514.86 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

4.002010 0.00 0.00 18,208.23 1,207.22 0.00 -15,460.50 0.00 0.00 -14,549.84

5.002011 0.00 0.00 0.00 1,231.37 0.00 35,205.00 0.00 0.00 15,903.16

6.002012 0.00 0.00 0.00 1,256.02 0.00 116,634.76 0.00 0.00 107,257.19

6.002013 0.00 0.00 0.00 1,281.12 0.00 77,694.67 0.00 0.00 162,330.06

4.002014 0.00 0.00 0.00 1,306.74 0.00 46,179.67 0.00 0.00 191,910.70

4.002015 0.00 0.00 0.00 1,332.87 0.00 36,834.21 0.00 0.00 213,260.43

4.002016 0.00 0.00 0.00 1,359.55 0.00 31,755.04 0.00 0.00 229,915.45

4.002017 0.00 0.00 0.00 15,048.97 0.00 13,690.29 0.00 0.00 236,425.27

2.002018 0.00 0.00 0.00 17,284.59 0.00 7,677.03 0.00 0.00 239,731.19

2.002019 0.00 0.00 0.00 3,693.22 0.00 1,821.64 0.00 0.00 240,521.01

0.002020 0.00 0.00 1,477.27 0.00 0.00 -1,477.27 0.00 0.00 240,001.65

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 19,685.50 45,001.66 0.00 350,554.54 0.00

0.00 0.00

0.00

0.00

240,001.65

0.00 0.00

83.54 0.00

0.00

5,666.99 15.87

0.00 0.00 0.00 0.00 0.00 0.00

5,630.66 0.00 4,970.67 0.00 415,241.69 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

14.56 / 18.81

1.42

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

289,039.64 240,001.65 200,571.18

20.00% :50.00% :

168,602.68 65,264.30

PW 36,612.1770.00% :

17,704.96

188.45

Hud Eco Detailed.rpt 37

Page 234: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA EOCENE FieldProved Rsv Class

03/30/2010 11:19:40AMDate :

15.87

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

36.33

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

72.59 0.00 58.98 0.00 54.48 0.00 3,954.95 0.00 0.002010

76.59 0.00 34.65 0.00 31.48 0.00 2,411.40 0.00 0.002011

79.59 0.00 24.35 0.00 22.45 0.00 1,786.73 0.00 0.002012

82.59 0.00 18.62 0.00 17.43 0.00 1,439.25 0.00 0.002013

85.59 0.00 14.80 0.00 14.06 0.00 1,203.18 0.00 0.002014

87.43 0.00 11.84 0.00 11.25 0.00 983.38 0.00 0.002015

89.31 0.00 9.50 0.00 9.02 0.00 805.71 0.00 0.002016

91.23 0.00 5.18 0.00 4.92 0.00 449.30 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

2.002010 0.00 0.00 0.00 1,207.22 0.00 2,747.73 0.00 0.00 2,635.76

2.002011 0.00 0.00 0.00 1,231.37 0.00 1,180.03 0.00 0.00 3,659.51

2.002012 0.00 0.00 0.00 1,245.11 0.00 541.61 0.00 0.00 4,085.43

2.002013 0.00 0.00 0.00 985.99 0.00 453.26 0.00 0.00 4,407.26

2.002014 0.00 0.00 0.00 808.94 0.00 394.24 0.00 0.00 4,660.58

2.002015 0.00 0.00 0.00 657.87 0.00 325.52 0.00 0.00 4,849.92

2.002016 0.00 0.00 0.00 534.55 0.00 271.16 0.00 0.00 4,992.70

2.002017 0.00 0.00 0.00 301.62 0.00 147.68 0.00 0.00 5,066.45

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5,066.45

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5,066.45

0.002020 0.00 0.00 246.21 0.00 0.00 -246.21 0.00 0.00 4,979.89

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 246.21 6,972.67 0.00 5,815.02 0.00

0.00 0.00

0.00

0.00

4,979.89

0.00 0.00

78.95 0.00

0.00

214.25 15.87

0.00 0.00 0.00 0.00 0.00 0.00

177.92 0.00 165.10 0.00 13,033.90 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

58.53 / 24.62

0.06

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

5,370.56 4,979.89 4,639.09

20.00% :50.00% :

4,342.35 3,181.91

PW 2,736.6970.00% :

86.56

>1000

Hud Eco Detailed.rpt 38

Page 235: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA EOCENE FieldProved Rsv Class

Producing Rsv Category

03/30/2010 11:19:40AMDate :

15.87

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

36.33

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

72.59 0.00 58.98 0.00 54.48 0.00 3,954.95 0.00 0.002010

76.59 0.00 34.65 0.00 31.48 0.00 2,411.40 0.00 0.002011

79.59 0.00 24.35 0.00 22.45 0.00 1,786.73 0.00 0.002012

82.59 0.00 18.62 0.00 17.43 0.00 1,439.25 0.00 0.002013

85.59 0.00 14.80 0.00 14.06 0.00 1,203.18 0.00 0.002014

87.43 0.00 11.84 0.00 11.25 0.00 983.38 0.00 0.002015

89.31 0.00 9.50 0.00 9.02 0.00 805.71 0.00 0.002016

91.23 0.00 5.18 0.00 4.92 0.00 449.30 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

2.002010 0.00 0.00 0.00 1,207.22 0.00 2,747.73 0.00 0.00 2,635.76

2.002011 0.00 0.00 0.00 1,231.37 0.00 1,180.03 0.00 0.00 3,659.51

2.002012 0.00 0.00 0.00 1,245.11 0.00 541.61 0.00 0.00 4,085.43

2.002013 0.00 0.00 0.00 985.99 0.00 453.26 0.00 0.00 4,407.26

2.002014 0.00 0.00 0.00 808.94 0.00 394.24 0.00 0.00 4,660.58

2.002015 0.00 0.00 0.00 657.87 0.00 325.52 0.00 0.00 4,849.92

2.002016 0.00 0.00 0.00 534.55 0.00 271.16 0.00 0.00 4,992.70

2.002017 0.00 0.00 0.00 301.62 0.00 147.68 0.00 0.00 5,066.45

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5,066.45

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5,066.45

0.002020 0.00 0.00 246.21 0.00 0.00 -246.21 0.00 0.00 4,979.89

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 246.21 6,972.67 0.00 5,815.02 0.00

0.00 0.00

0.00

0.00

4,979.89

0.00 0.00

78.95 0.00

0.00

214.25 15.87

0.00 0.00 0.00 0.00 0.00 0.00

177.92 0.00 165.10 0.00 13,033.90 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

58.53 / 24.62

0.06

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

5,370.56 4,979.89 4,639.09

20.00% :50.00% :

4,342.35 3,181.91

PW 2,736.6970.00% :

86.56

>1000

Hud Eco Detailed.rpt 39

Page 236: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Producing

SONGKHLA EOCENE

COASTAL ENERGYEOCENE

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

36.33

15.87

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA EOCENE A-712/31/2009

72.59 0.00 58.98 0.00 54.48 0.00 3,954.95 0.00 0.002010

76.59 0.00 34.65 0.00 31.48 0.00 2,411.40 0.00 0.002011

79.59 0.00 24.35 0.00 22.45 0.00 1,786.73 0.00 0.002012

82.59 0.00 18.62 0.00 17.43 0.00 1,439.25 0.00 0.002013

85.59 0.00 14.80 0.00 14.06 0.00 1,203.18 0.00 0.002014

87.43 0.00 11.84 0.00 11.25 0.00 983.38 0.00 0.002015

89.31 0.00 9.50 0.00 9.02 0.00 805.71 0.00 0.002016

91.23 0.00 5.18 0.00 4.92 0.00 449.30 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 3,954.95 0.00 0.00 3,784.82

1.002011 0.00 0.00 0.00 0.00 0.00 2,411.40 0.00 0.00 5,869.60

1.002012 0.00 0.00 0.00 0.00 0.00 1,786.73 0.00 0.00 7,266.51

1.002013 0.00 0.00 0.00 0.00 0.00 1,439.25 0.00 0.00 8,284.41

1.002014 0.00 0.00 0.00 0.00 0.00 1,203.18 0.00 0.00 9,054.71

1.002015 0.00 0.00 0.00 0.00 0.00 983.38 0.00 0.00 9,624.66

1.002016 0.00 0.00 0.00 0.00 0.00 805.71 0.00 0.00 10,047.34

1.002017 0.00 0.00 0.00 0.00 0.00 449.30 0.00 0.00 10,264.05

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10,264.05

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10,264.05

0.002020 0.00 0.00 246.21 0.00 0.00 -246.21 0.00 0.00 10,177.49

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 246.21 0.00 0.00 12,787.69 0.00

0.00 0.00

0.00

0.00

10,177.49

0.00 0.00

78.95 0.00

0.00

214.25 15.87

0.00 0.00 0.00 0.00 0.00 0.00

177.92 0.00 165.10 0.00 13,033.90 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

60.02

bbl/monthbbl/month

% year b = 0.900

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.92377000

08/28/2017

118.61 / 52.94

0.05

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

11,358.46 10,177.49

9,196.1220.00% :50.00% :

8,375.05 5,446.73

PW 4,452.2670.00% :

86.56

6,953.17 608.33

>1000

Hud Eco Detailed.rpt 40

Page 237: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Producing

SONGKHLA EOCENE

COASTAL ENERGYEOCENE

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA EOCENE PDP LOE12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002012

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 1,207.22 0.00 -1,207.22 0.00 0.00 -1,149.06

1.002011 0.00 0.00 0.00 1,231.37 0.00 -1,231.37 0.00 0.00 -2,210.09

1.002012 0.00 0.00 0.00 1,245.11 0.00 -1,245.11 0.00 0.00 -3,181.08

1.002013 0.00 0.00 0.00 985.99 0.00 -985.99 0.00 0.00 -3,877.15

1.002014 0.00 0.00 0.00 808.94 0.00 -808.94 0.00 0.00 -4,394.13

1.002015 0.00 0.00 0.00 657.87 0.00 -657.87 0.00 0.00 -4,774.74

1.002016 0.00 0.00 0.00 534.55 0.00 -534.55 0.00 0.00 -5,054.64

1.002017 0.00 0.00 0.00 301.62 0.00 -301.62 0.00 0.00 -5,197.61

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 6,972.67 0.00 -6,972.67 0.00

0.00 0.00

0.00

0.00

-5,197.61

0.00 0.00

0.00 0.00

0.00

0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

0.00

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

12/31/2017

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

-5,987.90-5,197.61-4,557.03

20.00% :50.00% :

-4,032.70-2,264.82

PW -1,715.5770.00% :

0.00

0.00 0.00

0.00

Hud Eco Detailed.rpt 41

Page 238: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA EOCENE FieldProbable Rsv Class

03/30/2010 11:19:40AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 515.72 0.00 444.25 0.00 34,024.97 0.00 0.002011

79.59 0.00 348.37 0.00 303.97 0.00 24,192.91 0.00 0.002012

82.59 0.00 230.87 0.00 204.51 0.00 16,890.75 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 12,138.82 0.00 0.00 -12,138.82 0.00 0.00 -11,457.06

2.002011 0.00 0.00 0.00 0.00 0.00 34,024.97 0.00 0.00 17,972.18

2.002012 0.00 0.00 0.00 10.91 0.00 24,182.00 0.00 0.00 36,882.57

2.002013 0.00 0.00 0.00 295.13 0.00 16,595.62 0.00 0.00 48,690.48

0.002014 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,690.48

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,690.48

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,690.48

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,690.48

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,690.48

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,690.48

0.002020 0.00 0.00 738.63 0.00 0.00 -738.63 0.00 0.00 48,430.80

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 12,877.45 306.03 0.00 61,925.14 0.00

0.00 0.00

0.00

0.00

48,430.80

0.00 0.00

78.84 0.00

0.00

1,094.97 0.00

0.00 0.00 0.00 0.00 0.00 0.00

1,094.97 0.00 952.73 0.00 75,108.63 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

5.13 / 5.81

1.33

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

54,775.26 48,430.80 42,816.44

20.00% :50.00% :

37,854.34 18,056.30

PW 10,873.3570.00% :

11,716.75

156.06

Hud Eco Detailed.rpt 42

Page 239: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA EOCENE FieldProbable Rsv Class

Undeveloped Rsv Category

03/30/2010 11:19:40AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 515.72 0.00 444.25 0.00 34,024.97 0.00 0.002011

79.59 0.00 348.37 0.00 303.97 0.00 24,192.91 0.00 0.002012

82.59 0.00 230.87 0.00 204.51 0.00 16,890.75 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 12,138.82 0.00 0.00 -12,138.82 0.00 0.00 -11,457.06

2.002011 0.00 0.00 0.00 0.00 0.00 34,024.97 0.00 0.00 17,972.18

2.002012 0.00 0.00 0.00 10.91 0.00 24,182.00 0.00 0.00 36,882.57

2.002013 0.00 0.00 0.00 295.13 0.00 16,595.62 0.00 0.00 48,690.48

0.002014 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,690.48

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,690.48

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,690.48

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,690.48

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,690.48

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,690.48

0.002020 0.00 0.00 738.63 0.00 0.00 -738.63 0.00 0.00 48,430.80

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 12,877.45 306.03 0.00 61,925.14 0.00

0.00 0.00

0.00

0.00

48,430.80

0.00 0.00

78.84 0.00

0.00

1,094.97 0.00

0.00 0.00 0.00 0.00 0.00 0.00

1,094.97 0.00 952.73 0.00 75,108.63 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

5.13 / 5.81

1.33

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

54,775.26 48,430.80 42,816.44

20.00% :50.00% :

37,854.34 18,056.30

PW 10,873.3570.00% :

11,716.75

156.06

Hud Eco Detailed.rpt 43

Page 240: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Probable Undeveloped

SONGKHLA EOCENE

COASTAL ENERGYEOCENE

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA EOCENE PROB12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 515.72 0.00 444.25 0.00 34,024.97 0.00 0.002011

79.59 0.00 348.37 0.00 303.97 0.00 24,192.91 0.00 0.002012

82.59 0.00 230.87 0.00 204.51 0.00 16,890.75 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

0.002010 0.00 0.00 12,138.82 0.00 0.00 -12,138.82 0.00 0.00 -11,457.06

1.002011 0.00 0.00 0.00 0.00 0.00 34,024.97 0.00 0.00 17,972.18

1.002012 0.00 0.00 0.00 0.00 0.00 24,192.91 0.00 0.00 36,891.08

1.002013 0.00 0.00 0.00 0.00 0.00 16,890.75 0.00 0.00 48,907.34

0.002014 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,907.34

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,907.34

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,907.34

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,907.34

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,907.34

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 48,907.34

0.002020 0.00 0.00 738.63 0.00 0.00 -738.63 0.00 0.00 48,647.65

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 12,877.45 0.00 0.00 62,231.17 0.00

0.00 0.00

0.00

0.00

48,647.65

0.00 0.00

78.84 0.00

0.00

1,094.97 0.00

0.00 0.00 0.00 0.00 0.00 0.00

1,094.97 0.00 952.73 0.00 75,108.63 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

44.17

bbl/monthbbl/month

% year b = 0.900

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.88579900

11/15/2013

5.15 / 5.83

1.33

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

55,032.74 48,647.65 42,999.26

20.00% :50.00% :

38,008.62 18,113.19

PW 10,903.1870.00% :

11,716.75

54,750.00 19,708.34

156.11

Hud Eco Detailed.rpt 44

Page 241: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Probable Undeveloped

SONGKHLA EOCENE

COASTAL ENERGYEOCENE

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA EOCENE PROB LOE12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002012

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002013

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002012 0.00 0.00 0.00 10.91 0.00 -10.91 0.00 0.00 -8.51

1.002013 0.00 0.00 0.00 295.13 0.00 -295.13 0.00 0.00 -216.85

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 306.03 0.00 -306.03 0.00

0.00 0.00

0.00

0.00

-216.85

0.00 0.00

0.00 0.00

0.00

0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

0.00

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

12/31/2013

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

-257.48-216.85-182.82

20.00% :50.00% :

-154.28-56.89

PW -29.8270.00% :

0.00

0.00 0.00

0.00

Hud Eco Detailed.rpt 45

Page 242: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA EOCENE FieldPossible Rsv Class

03/30/2010 11:19:40AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

79.59 0.00 1,358.60 0.00 1,154.81 0.00 91,911.14 0.00 0.002012

82.59 0.00 848.83 0.00 734.30 0.00 60,645.78 0.00 0.002013

85.59 0.00 613.03 0.00 540.76 0.00 46,283.23 0.00 0.002014

87.43 0.00 477.08 0.00 425.30 0.00 37,183.70 0.00 0.002015

89.31 0.00 389.96 0.00 361.76 0.00 32,308.88 0.00 0.002016

91.23 0.00 327.29 0.00 310.09 0.00 28,289.96 0.00 0.002017

93.18 0.00 281.99 0.00 267.89 0.00 24,961.62 0.00 0.002018

95.17 0.00 61.00 0.00 57.95 0.00 5,514.86 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 6,069.41 0.00 0.00 -6,069.41 0.00 0.00 -5,728.53

1.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -5,728.53

2.002012 0.00 0.00 0.00 0.00 0.00 91,911.14 0.00 0.00 66,289.20

2.002013 0.00 0.00 0.00 0.00 0.00 60,645.78 0.00 0.00 109,232.31

2.002014 0.00 0.00 0.00 497.80 0.00 45,785.43 0.00 0.00 138,559.63

2.002015 0.00 0.00 0.00 675.01 0.00 36,508.69 0.00 0.00 159,720.03

2.002016 0.00 0.00 0.00 825.00 0.00 31,483.88 0.00 0.00 176,232.26

2.002017 0.00 0.00 0.00 14,747.34 0.00 13,542.62 0.00 0.00 182,668.34

2.002018 0.00 0.00 0.00 17,284.59 0.00 7,677.03 0.00 0.00 185,974.26

2.002019 0.00 0.00 0.00 3,693.22 0.00 1,821.64 0.00 0.00 186,764.08

0.002020 0.00 0.00 492.42 0.00 0.00 -492.42 0.00 0.00 186,590.96

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 6,561.83 37,722.95 0.00 282,814.38 0.00

0.00 0.00

0.00

0.00

186,590.96

0.00 0.00

84.90 0.00

0.00

4,357.76 0.00

0.00 0.00 0.00 0.00 0.00 0.00

4,357.76 0.00 3,852.85 0.00 327,099.16 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

32.62 / 44.10

2.05

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

228,893.81 186,590.96 153,115.65

20.00% :50.00% :

126,405.99 44,026.08

PW 23,002.1370.00% :

5,901.65

169.25

Hud Eco Detailed.rpt 46

Page 243: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA EOCENE FieldPossible Rsv Class

Undeveloped Rsv Category

03/30/2010 11:19:40AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

79.59 0.00 1,358.60 0.00 1,154.81 0.00 91,911.14 0.00 0.002012

82.59 0.00 848.83 0.00 734.30 0.00 60,645.78 0.00 0.002013

85.59 0.00 613.03 0.00 540.76 0.00 46,283.23 0.00 0.002014

87.43 0.00 477.08 0.00 425.30 0.00 37,183.70 0.00 0.002015

89.31 0.00 389.96 0.00 361.76 0.00 32,308.88 0.00 0.002016

91.23 0.00 327.29 0.00 310.09 0.00 28,289.96 0.00 0.002017

93.18 0.00 281.99 0.00 267.89 0.00 24,961.62 0.00 0.002018

95.17 0.00 61.00 0.00 57.95 0.00 5,514.86 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 6,069.41 0.00 0.00 -6,069.41 0.00 0.00 -5,728.53

1.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -5,728.53

2.002012 0.00 0.00 0.00 0.00 0.00 91,911.14 0.00 0.00 66,289.20

2.002013 0.00 0.00 0.00 0.00 0.00 60,645.78 0.00 0.00 109,232.31

2.002014 0.00 0.00 0.00 497.80 0.00 45,785.43 0.00 0.00 138,559.63

2.002015 0.00 0.00 0.00 675.01 0.00 36,508.69 0.00 0.00 159,720.03

2.002016 0.00 0.00 0.00 825.00 0.00 31,483.88 0.00 0.00 176,232.26

2.002017 0.00 0.00 0.00 14,747.34 0.00 13,542.62 0.00 0.00 182,668.34

2.002018 0.00 0.00 0.00 17,284.59 0.00 7,677.03 0.00 0.00 185,974.26

2.002019 0.00 0.00 0.00 3,693.22 0.00 1,821.64 0.00 0.00 186,764.08

0.002020 0.00 0.00 492.42 0.00 0.00 -492.42 0.00 0.00 186,590.96

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 6,561.83 37,722.95 0.00 282,814.38 0.00

0.00 0.00

0.00

0.00

186,590.96

0.00 0.00

84.90 0.00

0.00

4,357.76 0.00

0.00 0.00 0.00 0.00 0.00 0.00

4,357.76 0.00 3,852.85 0.00 327,099.16 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

32.62 / 44.10

2.05

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

228,893.81 186,590.96 153,115.65

20.00% :50.00% :

126,405.99 44,026.08

PW 23,002.1370.00% :

5,901.65

169.25

Hud Eco Detailed.rpt 47

Page 244: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Possible Undeveloped

SONGKHLA EOCENE

COASTAL ENERGYEOCENE

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA EOCENE POSS12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

79.59 0.00 1,358.60 0.00 1,154.81 0.00 91,911.14 0.00 0.002012

82.59 0.00 848.83 0.00 734.30 0.00 60,645.78 0.00 0.002013

85.59 0.00 613.03 0.00 540.76 0.00 46,283.23 0.00 0.002014

87.43 0.00 477.08 0.00 425.30 0.00 37,183.70 0.00 0.002015

89.31 0.00 389.96 0.00 361.76 0.00 32,308.88 0.00 0.002016

91.23 0.00 327.29 0.00 310.09 0.00 28,289.96 0.00 0.002017

93.18 0.00 281.99 0.00 267.89 0.00 24,961.62 0.00 0.002018

95.17 0.00 61.00 0.00 57.95 0.00 5,514.86 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

0.002010 0.00 0.00 6,069.41 0.00 0.00 -6,069.41 0.00 0.00 -5,728.53

0.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -5,728.53

1.002012 0.00 0.00 0.00 0.00 0.00 91,911.14 0.00 0.00 66,289.20

1.002013 0.00 0.00 0.00 0.00 0.00 60,645.78 0.00 0.00 109,232.31

1.002014 0.00 0.00 0.00 0.00 0.00 46,283.23 0.00 0.00 138,877.77

1.002015 0.00 0.00 0.00 0.00 0.00 37,183.70 0.00 0.00 160,428.69

1.002016 0.00 0.00 0.00 0.00 0.00 32,308.88 0.00 0.00 177,372.90

1.002017 0.00 0.00 0.00 0.00 0.00 28,289.96 0.00 0.00 190,799.25

1.002018 0.00 0.00 0.00 0.00 0.00 24,961.62 0.00 0.00 201,522.03

1.002019 0.00 0.00 0.00 0.00 0.00 5,514.86 0.00 0.00 203,746.50

0.002020 0.00 0.00 492.42 0.00 0.00 -492.42 0.00 0.00 203,573.38

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 6,561.83 0.00 0.00 320,537.33 0.00

0.00 0.00

0.00

0.00

203,573.38

0.00 0.00

84.90 0.00

0.00

4,357.76 0.00

0.00 0.00 0.00 0.00 0.00 0.00

4,357.76 0.00 3,852.85 0.00 327,099.16 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

52.65

bbl/monthbbl/month

% year b = 0.900

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

03/26/2019

35.50 / 49.85

2.05

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

254,156.14 203,573.38 164,576.38

20.00% :50.00% :

134,171.02 44,846.94

PW 23,203.8070.00% :

5,901.65

152,083.33 21,291.67

169.27

Hud Eco Detailed.rpt 48

Page 245: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Possible Undeveloped

SONGKHLA EOCENE

COASTAL ENERGYEOCENE

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA EOCENE POSS LOE12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002012

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002012 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002013 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002014 0.00 0.00 0.00 497.80 0.00 -497.80 0.00 0.00 -318.13

1.002015 0.00 0.00 0.00 675.01 0.00 -675.01 0.00 0.00 -708.66

1.002016 0.00 0.00 0.00 825.00 0.00 -825.00 0.00 0.00 -1,140.64

1.002017 0.00 0.00 0.00 14,747.34 0.00 -14,747.34 0.00 0.00 -8,130.92

1.002018 0.00 0.00 0.00 17,284.59 0.00 -17,284.59 0.00 0.00 -15,547.77

1.002019 0.00 0.00 0.00 3,693.22 0.00 -3,693.22 0.00 0.00 -16,982.42

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 37,722.95 0.00 -37,722.95 0.00

0.00 0.00

0.00

0.00

-16,982.42

0.00 0.00

0.00 0.00

0.00

0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

0.00

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

12/31/2019

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

-25,262.33-16,982.42-11,460.72

20.00% :50.00% :

-7,765.02-820.86

PW -201.6770.00% :

0.00

0.00 0.00

0.00

Hud Eco Detailed.rpt 49

Page 246: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA OLIGOCENE Field

03/30/2010 11:19:40AMDate :

262.92

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

2,022.45

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

72.59 0.00 3,125.92 0.00 2,871.71 0.00 208,457.16 0.00 0.002010

76.59 0.00 2,464.63 0.00 2,190.22 0.00 167,748.79 0.00 0.002011

79.59 0.00 2,079.00 0.00 1,865.26 0.00 148,455.75 0.00 0.002012

82.59 0.00 1,654.68 0.00 1,503.41 0.00 124,166.67 0.00 0.002013

85.59 0.00 1,011.96 0.00 939.77 0.00 80,435.15 0.00 0.002014

87.43 0.00 739.64 0.00 687.65 0.00 60,121.41 0.00 0.002015

89.31 0.00 398.36 0.00 373.29 0.00 33,338.83 0.00 0.002016

91.23 0.00 11.32 0.00 10.73 0.00 978.64 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

10.002010 0.00 0.00 8,029.27 22,937.15 0.00 177,490.74 0.00 0.00 168,715.64

11.002011 0.00 0.00 0.00 23,395.89 0.00 144,352.90 0.00 0.00 293,180.03

11.002012 0.00 0.00 3,152.09 23,864.24 0.00 121,439.42 0.00 0.00 388,118.65

11.002013 0.00 0.00 0.00 24,341.08 0.00 99,825.59 0.00 0.00 458,748.37

10.002014 0.00 0.00 0.00 24,827.90 0.00 55,607.25 0.00 0.00 494,532.26

9.002015 0.00 0.00 0.00 25,324.46 0.00 34,796.95 0.00 0.00 514,731.20

9.002016 0.00 0.00 0.00 22,416.98 0.00 10,921.85 0.00 0.00 520,632.19

2.002017 0.00 0.00 0.00 649.64 0.00 329.00 0.00 0.00 520,810.35

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 520,810.35

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 520,810.35

0.002020 0.00 0.00 4,431.81 0.00 0.00 -4,431.81 0.00 0.00 519,252.26

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 15,613.17 167,757.35 0.00 640,331.90 0.00

0.00 0.00

0.00

0.00

519,252.26

0.00 0.00

78.88 0.00

0.00

13,507.97 262.92

0.00 0.00 0.00 0.00 0.00 0.00

11,485.52 0.00 10,442.04 0.00 823,702.41 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

44.64 / 42.01

0.11

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

575,011.14 519,252.26 471,470.81

20.00% :50.00% :

430,341.90 273,588.75

PW 216,917.5570.00% :

11,899.59

>1000

Hud Eco Detailed.rpt 50

Page 247: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA OLIGOCENE FieldProved Rsv Class

03/30/2010 11:19:40AMDate :

262.92

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

2,022.45

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

72.59 0.00 2,706.50 0.00 2,500.18 0.00 181,488.34 0.00 0.002010

76.59 0.00 1,695.89 0.00 1,540.98 0.00 118,023.68 0.00 0.002011

79.59 0.00 1,211.46 0.00 1,116.68 0.00 88,876.25 0.00 0.002012

82.59 0.00 887.91 0.00 830.87 0.00 68,621.72 0.00 0.002013

85.59 0.00 654.78 0.00 622.04 0.00 53,240.66 0.00 0.002014

87.43 0.00 483.30 0.00 459.14 0.00 40,142.28 0.00 0.002015

89.31 0.00 167.70 0.00 159.32 0.00 14,228.43 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

8.002010 0.00 0.00 5,019.66 22,937.15 0.00 153,531.54 0.00 0.00 146,417.87

8.002011 0.00 0.00 0.00 23,395.89 0.00 94,627.79 0.00 0.00 228,275.95

8.002012 0.00 0.00 0.00 23,864.24 0.00 65,012.01 0.00 0.00 279,157.80

8.002013 0.00 0.00 0.00 24,341.08 0.00 44,280.64 0.00 0.00 310,536.93

7.002014 0.00 0.00 0.00 24,827.90 0.00 28,412.75 0.00 0.00 328,778.34

7.002015 0.00 0.00 0.00 25,324.46 0.00 14,817.82 0.00 0.00 337,407.79

7.002016 0.00 0.00 0.00 9,565.03 0.00 4,663.40 0.00 0.00 340,022.56

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 340,022.56

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 340,022.56

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 340,022.56

0.002020 0.00 0.00 3,693.17 0.00 0.00 -3,693.17 0.00 0.00 338,724.15

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 8,712.83 154,255.75 0.00 401,652.79 0.00

0.00 0.00

0.00

0.00

338,724.15

0.00 0.00

78.10 0.00

0.00

9,830.00 262.92

0.00 0.00 0.00 0.00 0.00 0.00

7,807.55 0.00 7,229.21 0.00 564,621.37 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

55.46 / 47.10

0.06

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

368,011.62 338,724.15 313,175.61

20.00% :50.00% :

290,816.94 201,515.88

PW 166,862.1170.00% :

6,220.17

>1000

Hud Eco Detailed.rpt 51

Page 248: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA OLIGOCENE FieldProved Rsv Class

Producing Rsv Category

03/30/2010 11:19:40AMDate :

236.78

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

1,821.43

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

72.59 0.00 1,739.83 0.00 1,607.21 0.00 116,667.17 0.00 0.002010

76.59 0.00 1,082.44 0.00 983.57 0.00 75,331.54 0.00 0.002011

79.59 0.00 779.74 0.00 718.73 0.00 57,203.88 0.00 0.002012

82.59 0.00 566.32 0.00 529.93 0.00 43,767.30 0.00 0.002013

85.59 0.00 413.54 0.00 392.86 0.00 33,624.83 0.00 0.002014

87.43 0.00 302.33 0.00 287.21 0.00 25,111.18 0.00 0.002015

89.31 0.00 129.24 0.00 122.77 0.00 10,964.89 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

5.002010 0.00 0.00 0.00 22,937.15 0.00 93,730.02 0.00 0.00 89,839.22

5.002011 0.00 0.00 0.00 23,395.89 0.00 51,935.65 0.00 0.00 134,776.28

5.002012 0.00 0.00 0.00 23,864.24 0.00 33,339.64 0.00 0.00 160,896.43

5.002013 0.00 0.00 0.00 24,341.08 0.00 19,426.22 0.00 0.00 174,688.86

4.002014 0.00 0.00 0.00 24,827.90 0.00 8,796.93 0.00 0.00 180,365.12

4.002015 0.00 0.00 0.00 16,903.69 0.00 8,207.49 0.00 0.00 185,150.10

4.002016 0.00 0.00 0.00 7,369.97 0.00 3,594.92 0.00 0.00 187,142.06

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 187,142.06

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 187,142.06

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 187,142.06

0.002020 0.00 0.00 3,200.75 0.00 0.00 -3,200.75 0.00 0.00 186,016.77

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 3,200.75 143,639.92 0.00 215,830.12 0.00

0.00 0.00

0.00

0.00

186,016.77

0.00 0.00

78.12 0.00

0.00

6,834.86 236.78

0.00 0.00 0.00 0.00 0.00 0.00

5,013.44 0.00 4,642.29 0.00 362,670.79 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

166.31 / 68.43

0.02

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

200,013.66 186,016.77 173,648.05

20.00% :50.00% :

162,707.39 117,886.68

PW 99,923.4870.00% :

1,125.29

>1000

Hud Eco Detailed.rpt 52

Page 249: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Producing

SONGKHLA OLIGOCENE

COASTAL ENERGYOLIGOCENE C

Block G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

904.30

117.56

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA - A-112/31/2009

72.59 0.00 457.23 0.00 422.38 0.00 30,660.30 0.00 0.002010

76.59 0.00 341.61 0.00 310.41 0.00 23,773.93 0.00 0.002011

79.59 0.00 255.83 0.00 235.81 0.00 18,768.18 0.00 0.002012

82.59 0.00 190.53 0.00 178.29 0.00 14,725.18 0.00 0.002013

85.59 0.00 142.35 0.00 135.23 0.00 11,574.71 0.00 0.002014

87.43 0.00 106.35 0.00 101.04 0.00 8,833.68 0.00 0.002015

89.31 0.00 63.99 0.00 60.79 0.00 5,429.24 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 30,660.30 0.00 0.00 29,251.59

1.002011 0.00 0.00 0.00 0.00 0.00 23,773.93 0.00 0.00 49,784.67

1.002012 0.00 0.00 0.00 0.00 0.00 18,768.18 0.00 0.00 64,456.95

1.002013 0.00 0.00 0.00 0.00 0.00 14,725.18 0.00 0.00 74,876.66

1.002014 0.00 0.00 0.00 0.00 0.00 11,574.71 0.00 0.00 82,291.22

1.002015 0.00 0.00 0.00 0.00 0.00 8,833.68 0.00 0.00 87,413.90

1.002016 0.00 0.00 0.00 0.00 0.00 5,429.24 0.00 0.00 90,292.11

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 90,292.11

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 90,292.11

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 90,292.11

0.002020 0.00 0.00 246.21 0.00 0.00 -246.21 0.00 0.00 90,205.55

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 246.21 0.00 0.00 113,519.00 0.00

0.00 0.00

0.00

0.00

90,205.55

0.00 0.00

78.79 0.00

0.00

2,462.20 117.56

0.00 0.00 0.00 0.00 0.00 0.00

1,557.90 0.00 1,443.95 0.00 113,765.21 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

25.30

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.92377000

10/11/2016

1,043.39 / 462.06

0.01

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

100,786.77 90,205.55 81,346.73

20.00% :50.00% :

73,874.61 46,666.09

PW 37,277.5170.00% :

86.56

43,920.91 6,083.33

>1000

Hud Eco Detailed.rpt 53

Page 250: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Producing

SONGKHLA OLIGOCENE

COASTAL ENERGYOLIGOCENE C

Block G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

882.51

114.73

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA - A-312/31/2009

72.59 0.00 585.84 0.00 541.19 0.00 39,284.67 0.00 0.002010

76.59 0.00 407.65 0.00 370.42 0.00 28,370.20 0.00 0.002011

79.59 0.00 284.31 0.00 262.06 0.00 20,857.42 0.00 0.002012

82.59 0.00 197.19 0.00 184.52 0.00 15,239.35 0.00 0.002013

85.59 0.00 137.21 0.00 130.35 0.00 11,156.58 0.00 0.002014

87.43 0.00 95.48 0.00 90.70 0.00 7,930.07 0.00 0.002015

89.31 0.00 17.26 0.00 16.39 0.00 1,464.18 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 39,284.67 0.00 0.00 37,501.51

1.002011 0.00 0.00 0.00 0.00 0.00 28,370.20 0.00 0.00 62,018.55

1.002012 0.00 0.00 0.00 0.00 0.00 20,857.42 0.00 0.00 78,333.66

1.002013 0.00 0.00 0.00 0.00 0.00 15,239.35 0.00 0.00 89,123.47

1.002014 0.00 0.00 0.00 0.00 0.00 11,156.58 0.00 0.00 96,274.34

1.002015 0.00 0.00 0.00 0.00 0.00 7,930.07 0.00 0.00 100,875.68

1.002016 0.00 0.00 0.00 0.00 0.00 1,464.18 0.00 0.00 101,672.32

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 101,672.32

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 101,672.32

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 101,672.32

0.002020 0.00 0.00 246.21 0.00 0.00 -246.21 0.00 0.00 101,585.76

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 246.21 0.00 0.00 124,056.25 0.00

0.00 0.00

0.00

0.00

101,585.76

0.00 0.00

77.90 0.00

0.00

2,607.44 114.73

0.00 0.00 0.00 0.00 0.00 0.00

1,724.93 0.00 1,595.63 0.00 124,302.46 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

30.43

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.92377000

03/22/2016

1,174.90 / 504.86

0.01

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

111,898.16 101,585.76

92,785.6220.00% :50.00% :

85,229.63 56,420.00

PW 45,880.8570.00% :

86.56

58,188.32 6,083.33

>1000

Hud Eco Detailed.rpt 54

Page 251: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Producing

SONGKHLA OLIGOCENE

COASTAL ENERGYOLIGOCENE C

Block G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

34.62

4.50

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA - A-812/31/2009

72.59 0.00 696.76 0.00 643.65 0.00 46,722.20 0.00 0.002010

76.59 0.00 333.18 0.00 302.75 0.00 23,187.41 0.00 0.002011

79.59 0.00 239.61 0.00 220.86 0.00 17,578.28 0.00 0.002012

82.59 0.00 178.60 0.00 167.12 0.00 13,802.77 0.00 0.002013

85.59 0.00 133.97 0.00 127.28 0.00 10,893.54 0.00 0.002014

87.43 0.00 100.50 0.00 95.48 0.00 8,347.44 0.00 0.002015

89.31 0.00 47.99 0.00 45.59 0.00 4,071.47 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 46,722.20 0.00 0.00 44,918.26

1.002011 0.00 0.00 0.00 0.00 0.00 23,187.41 0.00 0.00 64,964.52

1.002012 0.00 0.00 0.00 0.00 0.00 17,578.28 0.00 0.00 78,707.71

1.002013 0.00 0.00 0.00 0.00 0.00 13,802.77 0.00 0.00 88,474.39

1.002014 0.00 0.00 0.00 0.00 0.00 10,893.54 0.00 0.00 95,452.37

1.002015 0.00 0.00 0.00 0.00 0.00 8,347.44 0.00 0.00 100,292.92

1.002016 0.00 0.00 0.00 0.00 0.00 4,071.47 0.00 0.00 102,469.04

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 102,469.04

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 102,469.04

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 102,469.04

0.002020 0.00 0.00 246.21 0.00 0.00 -246.21 0.00 0.00 102,382.48

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 246.21 0.00 0.00 124,356.90 0.00

0.00 0.00

0.00

0.00

102,382.48

0.00 0.00

77.74 0.00

0.00

1,765.23 4.50

0.00 0.00 0.00 0.00 0.00 0.00

1,730.61 0.00 1,602.72 0.00 124,603.11 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

98.34

bbl/monthbbl/month

% year b = 1.500

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.92377000

08/06/2016

1,184.10 / 506.08

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

112,396.51 102,382.48

93,936.3320.00% :50.00% :

86,759.56 60,018.47

PW 50,417.7470.00% :

86.56

126,989.26 6,083.33

>1000

Hud Eco Detailed.rpt 55

Page 252: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Producing

SONGKHLA OLIGOCENE

COASTAL ENERGYOLIGOCENE C

Block G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA PDP LOE12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002012

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 22,937.15 0.00 -22,937.15 0.00 0.00 -21,832.13

1.002011 0.00 0.00 0.00 23,395.89 0.00 -23,395.89 0.00 0.00 -41,991.47

1.002012 0.00 0.00 0.00 23,864.24 0.00 -23,864.24 0.00 0.00 -60,601.89

1.002013 0.00 0.00 0.00 24,341.08 0.00 -24,341.08 0.00 0.00 -77,785.67

1.002014 0.00 0.00 0.00 24,827.90 0.00 -24,827.90 0.00 0.00 -93,652.81

1.002015 0.00 0.00 0.00 16,903.69 0.00 -16,903.69 0.00 0.00 -103,432.39

1.002016 0.00 0.00 0.00 7,369.97 0.00 -7,369.97 0.00 0.00 -107,291.41

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 143,639.92 0.00 -143,639.92 0.00

0.00 0.00

0.00

0.00

-107,291.41

0.00 0.00

0.00 0.00

0.00

0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

0.00

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

12/31/2016

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

-123,609.49-107,291.41

-93,905.7120.00% :50.00% :

-82,849.45-45,203.49

PW -33,650.6770.00% :

0.00

0.00 0.00

0.00

Hud Eco Detailed.rpt 56

Page 253: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Producing

SONGKHLA OLIGOCENE

COATAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA OLIGOCENE - PDP CAPITAL12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002012

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002012 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002013 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002014 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002020 0.00 0.00 2,462.11 0.00 0.00 -2,462.11 0.00 0.00 -865.61

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 2,462.11 0.00 0.00 -2,462.11 0.00

0.00 0.00

0.00

0.00

-865.61

0.00 0.00

0.00 0.00

0.00

0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

0.00

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

12/31/2013

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

-1,458.29-865.61-514.91

20.00% :50.00% :

-306.95-14.39

PW -1.9570.00% :

865.61

0.00 0.00

0.00

Hud Eco Detailed.rpt 57

Page 254: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA OLIGOCENE FieldProved Rsv Class

Shut-In Rsv Category

03/30/2010 11:19:40AMDate :

26.13

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

201.02

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

72.59 0.00 966.67 0.00 892.98 0.00 64,821.17 0.00 0.002010

76.59 0.00 613.45 0.00 557.41 0.00 42,692.14 0.00 0.002011

79.59 0.00 431.72 0.00 397.94 0.00 31,672.38 0.00 0.002012

82.59 0.00 321.60 0.00 300.94 0.00 24,854.43 0.00 0.002013

85.59 0.00 241.25 0.00 229.18 0.00 19,615.83 0.00 0.002014

87.43 0.00 180.97 0.00 171.92 0.00 15,031.10 0.00 0.002015

89.31 0.00 38.47 0.00 36.54 0.00 3,263.54 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

3.002010 0.00 0.00 5,019.66 0.00 0.00 59,801.51 0.00 0.00 56,578.64

3.002011 0.00 0.00 0.00 0.00 0.00 42,692.14 0.00 0.00 93,499.67

3.002012 0.00 0.00 0.00 0.00 0.00 31,672.38 0.00 0.00 118,261.37

3.002013 0.00 0.00 0.00 0.00 0.00 24,854.43 0.00 0.00 135,848.07

3.002014 0.00 0.00 0.00 0.00 0.00 19,615.83 0.00 0.00 148,413.21

3.002015 0.00 0.00 0.00 8,420.77 0.00 6,610.33 0.00 0.00 152,257.69

3.002016 0.00 0.00 0.00 2,195.06 0.00 1,068.48 0.00 0.00 152,880.50

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 152,880.50

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 152,880.50

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 152,880.50

0.002020 0.00 0.00 492.42 0.00 0.00 -492.42 0.00 0.00 152,707.38

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 5,512.08 10,615.83 0.00 185,822.67 0.00

0.00 0.00

0.00

0.00

152,707.38

0.00 0.00

78.07 0.00

0.00

2,995.13 26.13

0.00 0.00 0.00 0.00 0.00 0.00

2,794.11 0.00 2,586.92 0.00 201,950.58 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

30.97 / 34.71

0.23

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

167,997.96 152,707.38 139,527.56

20.00% :50.00% :

128,109.55 83,629.20

PW 66,938.6370.00% :

5,094.88

>1000

Hud Eco Detailed.rpt 58

Page 255: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Shut-In

SONGKHLA OLIGOCENE

COASTAL ENERGYOLIGOCENE C

Block G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

28.12

3.66

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA - A-212/31/2009

72.59 0.00 460.21 0.00 425.12 0.00 30,859.81 0.00 0.002010

76.59 0.00 311.34 0.00 282.90 0.00 21,667.17 0.00 0.002011

79.59 0.00 217.04 0.00 200.06 0.00 15,922.88 0.00 0.002012

82.59 0.00 161.62 0.00 151.24 0.00 12,490.64 0.00 0.002013

85.59 0.00 121.24 0.00 115.18 0.00 9,857.97 0.00 0.002014

87.43 0.00 90.95 0.00 86.40 0.00 7,553.91 0.00 0.002015

89.31 0.00 15.38 0.00 14.61 0.00 1,304.96 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 3,517.13 0.00 0.00 27,342.68 0.00 0.00 25,748.92

1.002011 0.00 0.00 0.00 0.00 0.00 21,667.17 0.00 0.00 44,489.78

1.002012 0.00 0.00 0.00 0.00 0.00 15,922.88 0.00 0.00 56,938.27

1.002013 0.00 0.00 0.00 0.00 0.00 12,490.64 0.00 0.00 65,776.51

1.002014 0.00 0.00 0.00 0.00 0.00 9,857.97 0.00 0.00 72,091.14

1.002015 0.00 0.00 0.00 0.00 0.00 7,553.91 0.00 0.00 76,471.53

1.002016 0.00 0.00 0.00 0.00 0.00 1,304.96 0.00 0.00 77,182.39

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 77,182.39

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 77,182.39

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 77,182.39

0.002020 0.00 0.00 246.21 0.00 0.00 -246.21 0.00 0.00 77,095.83

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 3,763.34 0.00 0.00 95,894.00 0.00

0.00 0.00

0.00

0.00

77,095.83

0.00 0.00

78.13 0.00

0.00

1,405.89 3.66

0.00 0.00 0.00 0.00 0.00 0.00

1,377.77 0.00 1,275.51 0.00 99,657.35 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

95.47

bbl/monthbbl/month

% year b = 1.500

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.92377000

03/14/2016

22.92 / 26.48

0.31

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

85,703.34 77,095.83 69,780.19

20.00% :50.00% :

63,522.81 39,892.36

PW 31,334.1770.00% :

3,518.44

91,250.00 6,177.37

>1000

Hud Eco Detailed.rpt 59

Page 256: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Shut-In

SONGKHLA OLIGOCENE

COASTAL ENERGYOLIGOCENE C

Block G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

172.90

22.48

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA - A-412/31/2009

72.59 0.00 506.46 0.00 467.85 0.00 33,961.36 0.00 0.002010

76.59 0.00 302.11 0.00 274.51 0.00 21,024.97 0.00 0.002011

79.59 0.00 214.68 0.00 197.88 0.00 15,749.50 0.00 0.002012

82.59 0.00 159.98 0.00 149.70 0.00 12,363.78 0.00 0.002013

85.59 0.00 120.01 0.00 114.01 0.00 9,757.85 0.00 0.002014

87.43 0.00 90.02 0.00 85.52 0.00 7,477.19 0.00 0.002015

89.31 0.00 23.08 0.00 21.93 0.00 1,958.58 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 1,502.52 0.00 0.00 32,458.83 0.00 0.00 30,829.72

1.002011 0.00 0.00 0.00 0.00 0.00 21,024.97 0.00 0.00 49,009.89

1.002012 0.00 0.00 0.00 0.00 0.00 15,749.50 0.00 0.00 61,323.10

1.002013 0.00 0.00 0.00 0.00 0.00 12,363.78 0.00 0.00 70,071.57

1.002014 0.00 0.00 0.00 0.00 0.00 9,757.85 0.00 0.00 76,322.07

1.002015 0.00 0.00 0.00 0.00 0.00 7,477.19 0.00 0.00 80,657.97

1.002016 0.00 0.00 0.00 0.00 0.00 1,958.58 0.00 0.00 81,719.29

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 81,719.29

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 81,719.29

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 81,719.29

0.002020 0.00 0.00 246.21 0.00 0.00 -246.21 0.00 0.00 81,632.73

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 1,748.74 0.00 0.00 100,544.50 0.00

0.00 0.00

0.00

0.00

81,632.73

0.00 0.00

78.00 0.00

0.00

1,589.24 22.48

0.00 0.00 0.00 0.00 0.00 0.00

1,416.34 0.00 1,311.41 0.00 102,293.24 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

95.00

bbl/monthbbl/month

% year b = 1.500

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.92377000

04/22/2016

52.80 / 58.50

0.17

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

90,282.50 81,632.73 74,294.02

20.00% :50.00% :

68,025.86 44,403.68

PW 35,834.9170.00% :

1,576.44

91,250.00 5,926.20

>1000

Hud Eco Detailed.rpt 60

Page 257: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Shut-In

SONGKHLA OLIGOCENE

COASTAL ENERGYOLIGOCENE C

Block G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA PDSI LOE12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002012

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002012 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002013 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002014 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002015 0.00 0.00 0.00 8,420.77 0.00 -8,420.77 0.00 0.00 -4,871.81

1.002016 0.00 0.00 0.00 2,195.06 0.00 -2,195.06 0.00 0.00 -6,021.18

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 10,615.83 0.00 -10,615.83 0.00

0.00 0.00

0.00

0.00

-6,021.18

0.00 0.00

0.00 0.00

0.00

0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

0.00

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

12/31/2016

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

-7,987.88-6,021.18-4,546.64

20.00% :50.00% :

-3,439.12-666.84

PW -230.4570.00% :

0.00

0.00 0.00

0.00

Hud Eco Detailed.rpt 61

Page 258: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA OLIGOCENE FieldProbable Rsv Class

03/30/2010 11:19:40AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

72.59 0.00 419.42 0.00 371.52 0.00 26,968.82 0.00 0.002010

76.59 0.00 557.65 0.00 480.37 0.00 36,791.23 0.00 0.002011

79.59 0.00 495.56 0.00 432.39 0.00 34,414.20 0.00 0.002012

82.59 0.00 444.71 0.00 393.93 0.00 32,534.93 0.00 0.002013

85.59 0.00 72.13 0.00 66.29 0.00 5,674.04 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 3,009.62 0.00 0.00 23,959.20 0.00 0.00 22,297.77

1.002011 0.00 0.00 0.00 0.00 0.00 36,791.23 0.00 0.00 54,031.26

1.002012 0.00 0.00 0.00 0.00 0.00 34,414.20 0.00 0.00 80,895.40

1.002013 0.00 0.00 0.00 0.00 0.00 32,534.93 0.00 0.00 103,885.32

1.002014 0.00 0.00 0.00 0.00 0.00 5,674.04 0.00 0.00 107,662.23

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 107,662.23

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 107,662.23

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 107,662.23

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 107,662.23

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 107,662.23

0.002020 0.00 0.00 492.42 0.00 0.00 -492.42 0.00 0.00 107,489.11

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 3,502.04 0.00 0.00 132,881.16 0.00

0.00 0.00

0.00

0.00

107,489.11

0.00 0.00

78.18 0.00

0.00

1,989.47 0.00

0.00 0.00 0.00 0.00 0.00 0.00

1,989.47 0.00 1,744.51 0.00 136,383.21 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

35.29 / 38.94

0.41

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

119,338.77 107,489.11

97,105.2620.00% :50.00% :

87,987.80 51,708.84

PW 38,161.3870.00% :

3,134.71

694.36

Hud Eco Detailed.rpt 62

Page 259: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA OLIGOCENE FieldProbable Rsv Class

Undeveloped Rsv Category

03/30/2010 11:19:40AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

72.59 0.00 419.42 0.00 371.52 0.00 26,968.82 0.00 0.002010

76.59 0.00 557.65 0.00 480.37 0.00 36,791.23 0.00 0.002011

79.59 0.00 495.56 0.00 432.39 0.00 34,414.20 0.00 0.002012

82.59 0.00 444.71 0.00 393.93 0.00 32,534.93 0.00 0.002013

85.59 0.00 72.13 0.00 66.29 0.00 5,674.04 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 3,009.62 0.00 0.00 23,959.20 0.00 0.00 22,297.77

1.002011 0.00 0.00 0.00 0.00 0.00 36,791.23 0.00 0.00 54,031.26

1.002012 0.00 0.00 0.00 0.00 0.00 34,414.20 0.00 0.00 80,895.40

1.002013 0.00 0.00 0.00 0.00 0.00 32,534.93 0.00 0.00 103,885.32

1.002014 0.00 0.00 0.00 0.00 0.00 5,674.04 0.00 0.00 107,662.23

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 107,662.23

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 107,662.23

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 107,662.23

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 107,662.23

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 107,662.23

0.002020 0.00 0.00 492.42 0.00 0.00 -492.42 0.00 0.00 107,489.11

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 3,502.04 0.00 0.00 132,881.16 0.00

0.00 0.00

0.00

0.00

107,489.11

0.00 0.00

78.18 0.00

0.00

1,989.47 0.00

0.00 0.00 0.00 0.00 0.00 0.00

1,989.47 0.00 1,744.51 0.00 136,383.21 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

35.29 / 38.94

0.41

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

119,338.77 107,489.11

97,105.2620.00% :50.00% :

87,987.80 51,708.84

PW 38,161.3870.00% :

3,134.71

694.36

Hud Eco Detailed.rpt 63

Page 260: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Probable Undeveloped

SONGKHLA OLIGOCENE

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA - PROB INCREMENTAL12/31/2009

72.59 0.00 419.42 0.00 371.52 0.00 26,968.82 0.00 0.002010

76.59 0.00 557.65 0.00 480.37 0.00 36,791.23 0.00 0.002011

79.59 0.00 495.56 0.00 432.39 0.00 34,414.20 0.00 0.002012

82.59 0.00 444.71 0.00 393.93 0.00 32,534.93 0.00 0.002013

85.59 0.00 72.13 0.00 66.29 0.00 5,674.04 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 3,009.62 0.00 0.00 23,959.20 0.00 0.00 22,297.77

1.002011 0.00 0.00 0.00 0.00 0.00 36,791.23 0.00 0.00 54,031.26

1.002012 0.00 0.00 0.00 0.00 0.00 34,414.20 0.00 0.00 80,895.40

1.002013 0.00 0.00 0.00 0.00 0.00 32,534.93 0.00 0.00 103,885.32

1.002014 0.00 0.00 0.00 0.00 0.00 5,674.04 0.00 0.00 107,662.23

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 107,662.23

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 107,662.23

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 107,662.23

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 107,662.23

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 107,662.23

0.002020 0.00 0.00 492.42 0.00 0.00 -492.42 0.00 0.00 107,489.11

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 3,502.04 0.00 0.00 132,881.16 0.00

0.00 0.00

0.00

0.00

107,489.11

0.00 0.00

78.18 0.00

0.00

1,989.47 0.00

0.00 0.00 0.00 0.00 0.00 0.00

1,989.47 0.00 1,744.51 0.00 136,383.21 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

14.30

bbl/monthbbl/month

% year b = 1.100

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

0.88579900

03/05/2014

35.30 / 38.94

0.41

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

119,338.77 107,489.11

97,105.2620.00% :50.00% :

87,987.80 51,708.84

PW 38,161.3870.00% :

3,134.71

54,750.00 34,431.65

694.36

Hud Eco Detailed.rpt 64

Page 261: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA OLIGOCENE FieldPossible Rsv Class

03/30/2010 11:19:40AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 211.09 0.00 168.87 0.00 12,933.89 0.00 0.002011

79.59 0.00 371.98 0.00 316.19 0.00 25,165.30 0.00 0.002012

82.59 0.00 322.06 0.00 278.61 0.00 23,010.02 0.00 0.002013

85.59 0.00 285.04 0.00 251.44 0.00 21,520.45 0.00 0.002014

87.43 0.00 256.34 0.00 228.52 0.00 19,979.13 0.00 0.002015

89.31 0.00 230.66 0.00 213.98 0.00 19,110.40 0.00 0.002016

91.23 0.00 11.32 0.00 10.73 0.00 978.64 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

2.002011 0.00 0.00 0.00 0.00 0.00 12,933.89 0.00 0.00 10,872.82

2.002012 0.00 0.00 3,152.09 0.00 0.00 22,013.21 0.00 0.00 28,065.45

2.002013 0.00 0.00 0.00 0.00 0.00 23,010.02 0.00 0.00 44,326.12

2.002014 0.00 0.00 0.00 0.00 0.00 21,520.45 0.00 0.00 58,091.69

2.002015 0.00 0.00 0.00 0.00 0.00 19,979.13 0.00 0.00 69,661.18

2.002016 0.00 0.00 0.00 12,851.95 0.00 6,258.45 0.00 0.00 72,947.40

2.002017 0.00 0.00 0.00 649.64 0.00 329.00 0.00 0.00 73,125.56

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 73,125.56

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 73,125.56

0.002020 0.00 0.00 246.21 0.00 0.00 -246.21 0.00 0.00 73,039.00

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 3,398.30 13,501.60 0.00 105,797.95 0.00

0.00 0.00

0.00

0.00

73,039.00

0.00 0.00

83.56 0.00

0.00

1,688.49 0.00

0.00 0.00 0.00 0.00 0.00 0.00

1,688.49 0.00 1,468.32 0.00 122,697.84 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

29.70 / 32.13

1.62

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

87,660.75 73,039.00 61,189.94

20.00% :50.00% :

51,537.15 20,364.04

PW 11,894.0770.00% :

2,544.71

>1000

Hud Eco Detailed.rpt 65

Page 262: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA OLIGOCENE FieldPossible Rsv Class

Undeveloped Rsv Category

03/30/2010 11:19:40AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 211.09 0.00 168.87 0.00 12,933.89 0.00 0.002011

79.59 0.00 371.98 0.00 316.19 0.00 25,165.30 0.00 0.002012

82.59 0.00 322.06 0.00 278.61 0.00 23,010.02 0.00 0.002013

85.59 0.00 285.04 0.00 251.44 0.00 21,520.45 0.00 0.002014

87.43 0.00 256.34 0.00 228.52 0.00 19,979.13 0.00 0.002015

89.31 0.00 230.66 0.00 213.98 0.00 19,110.40 0.00 0.002016

91.23 0.00 11.32 0.00 10.73 0.00 978.64 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

2.002011 0.00 0.00 0.00 0.00 0.00 12,933.89 0.00 0.00 10,872.82

2.002012 0.00 0.00 3,152.09 0.00 0.00 22,013.21 0.00 0.00 28,065.45

2.002013 0.00 0.00 0.00 0.00 0.00 23,010.02 0.00 0.00 44,326.12

2.002014 0.00 0.00 0.00 0.00 0.00 21,520.45 0.00 0.00 58,091.69

2.002015 0.00 0.00 0.00 0.00 0.00 19,979.13 0.00 0.00 69,661.18

2.002016 0.00 0.00 0.00 12,851.95 0.00 6,258.45 0.00 0.00 72,947.40

2.002017 0.00 0.00 0.00 649.64 0.00 329.00 0.00 0.00 73,125.56

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 73,125.56

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 73,125.56

0.002020 0.00 0.00 246.21 0.00 0.00 -246.21 0.00 0.00 73,039.00

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 3,398.30 13,501.60 0.00 105,797.95 0.00

0.00 0.00

0.00

0.00

73,039.00

0.00 0.00

83.56 0.00

0.00

1,688.49 0.00

0.00 0.00 0.00 0.00 0.00 0.00

1,688.49 0.00 1,468.32 0.00 122,697.84 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

29.70 / 32.13

1.62

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

87,660.75 73,039.00 61,189.94

20.00% :50.00% :

51,537.15 20,364.04

PW 11,894.0770.00% :

2,544.71

>1000

Hud Eco Detailed.rpt 66

Page 263: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Possible Undeveloped

SONGKHLA OLIGOCENE

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA - POSS INCREMENTAL12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 211.09 0.00 168.87 0.00 12,933.89 0.00 0.002011

79.59 0.00 371.98 0.00 316.19 0.00 25,165.30 0.00 0.002012

82.59 0.00 322.06 0.00 278.61 0.00 23,010.02 0.00 0.002013

85.59 0.00 285.04 0.00 251.44 0.00 21,520.45 0.00 0.002014

87.43 0.00 256.34 0.00 228.52 0.00 19,979.13 0.00 0.002015

89.31 0.00 230.66 0.00 213.98 0.00 19,110.40 0.00 0.002016

91.23 0.00 11.32 0.00 10.73 0.00 978.64 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

0.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002011 0.00 0.00 0.00 0.00 0.00 12,933.89 0.00 0.00 10,872.82

1.002012 0.00 0.00 3,152.09 0.00 0.00 22,013.21 0.00 0.00 28,065.45

1.002013 0.00 0.00 0.00 0.00 0.00 23,010.02 0.00 0.00 44,326.12

1.002014 0.00 0.00 0.00 0.00 0.00 21,520.45 0.00 0.00 58,091.69

1.002015 0.00 0.00 0.00 0.00 0.00 19,979.13 0.00 0.00 69,661.18

1.002016 0.00 0.00 0.00 0.00 0.00 19,110.40 0.00 0.00 79,676.85

1.002017 0.00 0.00 0.00 0.00 0.00 978.64 0.00 0.00 80,162.95

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 80,162.95

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 80,162.95

0.002020 0.00 0.00 246.21 0.00 0.00 -246.21 0.00 0.00 80,076.39

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 3,398.30 0.00 0.00 119,299.54 0.00

0.00 0.00

0.00

0.00

80,076.39

0.00 0.00

83.56 0.00

0.00

1,688.49 0.00

0.00 0.00 0.00 0.00 0.00 0.00

1,688.49 0.00 1,468.32 0.00 122,697.84 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

16.72

bbl/monthbbl/month

% year b = 1.100

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

01/19/2017

32.48 / 36.11

1.62

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

97,400.24 80,076.39 66,283.27

20.00% :50.00% :

55,229.46 20,917.98

PW 12,055.2870.00% :

2,544.71

36,500.00 18,087.70

>1000

Hud Eco Detailed.rpt 67

Page 264: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Possible Undeveloped

SONGKHLA OLIGOCENE

COASTAL ENERGYOLIGOCENE C

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA - POSS LOE12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002012

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002012 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002013 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002014 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002016 0.00 0.00 0.00 12,851.95 0.00 -12,851.95 0.00 0.00 -6,729.46

1.002017 0.00 0.00 0.00 649.64 0.00 -649.64 0.00 0.00 -7,037.39

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 13,501.60 0.00 -13,501.60 0.00

0.00 0.00

0.00

0.00

-7,037.39

0.00 0.00

0.00 0.00

0.00

0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

0.00

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

12/31/2017

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

-9,739.50-7,037.39-5,093.33

20.00% :50.00% :

-3,692.31-553.94

PW -161.2170.00% :

0.00

0.00 0.00

0.00

Hud Eco Detailed.rpt 68

Page 265: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA OLIGOCENE WEDGE Field

03/30/2010 11:19:40AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 1,081.57 0.00 865.25 0.00 66,269.70 0.00 0.002011

79.59 0.00 611.80 0.00 520.03 0.00 41,389.46 0.00 0.002012

82.59 0.00 432.93 0.00 374.52 0.00 30,931.49 0.00 0.002013

85.59 0.00 338.18 0.00 298.31 0.00 25,532.35 0.00 0.002014

87.43 0.00 278.65 0.00 248.40 0.00 21,717.58 0.00 0.002015

89.31 0.00 238.20 0.00 220.98 0.00 19,735.50 0.00 0.002016

91.23 0.00 207.42 0.00 196.52 0.00 17,928.94 0.00 0.002017

93.18 0.00 184.85 0.00 175.61 0.00 16,363.03 0.00 0.002018

95.17 0.00 106.40 0.00 101.08 0.00 9,619.89 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 12,179.06 0.00 0.00 -12,179.06 0.00 0.00 -11,305.44

4.002011 0.00 0.00 0.00 0.00 0.00 66,269.70 0.00 0.00 46,154.07

4.002012 0.00 0.00 0.00 0.00 0.00 41,389.46 0.00 0.00 78,542.82

4.002013 0.00 0.00 0.00 0.00 0.00 30,931.49 0.00 0.00 100,428.66

4.002014 0.00 0.00 0.00 0.00 0.00 25,532.35 0.00 0.00 116,773.99

4.002015 0.00 0.00 0.00 0.00 0.00 21,717.58 0.00 0.00 129,355.93

4.002016 0.00 0.00 0.00 3,414.44 0.00 16,321.07 0.00 0.00 137,914.84

4.002017 0.00 0.00 0.00 12,035.68 0.00 5,893.26 0.00 0.00 140,716.58

4.002018 0.00 0.00 0.00 11,004.39 0.00 5,358.64 0.00 0.00 143,021.30

4.002019 0.00 0.00 0.00 6,396.75 0.00 3,223.14 0.00 0.00 144,342.88

0.002020 0.00 0.00 738.63 0.00 0.00 -738.63 0.00 0.00 144,083.20

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 12,917.69 32,851.26 0.00 203,719.00 0.00

0.00 0.00

0.00

0.00

144,083.20

0.00 0.00

83.14 0.00

0.00

3,480.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

3,480.00 0.00 3,000.70 0.00 249,487.95 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

13.46 / 16.77

1.14

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

170,508.26 144,083.20 122,819.84

20.00% :50.00% :

105,524.72 48,155.72

PW 30,940.7470.00% :

11,565.13

337.50

Hud Eco Detailed.rpt 69

Page 266: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA OLIGOCENE WEDGE FieldPossible Rsv Class

03/30/2010 11:19:40AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 1,081.57 0.00 865.25 0.00 66,269.70 0.00 0.002011

79.59 0.00 611.80 0.00 520.03 0.00 41,389.46 0.00 0.002012

82.59 0.00 432.93 0.00 374.52 0.00 30,931.49 0.00 0.002013

85.59 0.00 338.18 0.00 298.31 0.00 25,532.35 0.00 0.002014

87.43 0.00 278.65 0.00 248.40 0.00 21,717.58 0.00 0.002015

89.31 0.00 238.20 0.00 220.98 0.00 19,735.50 0.00 0.002016

91.23 0.00 207.42 0.00 196.52 0.00 17,928.94 0.00 0.002017

93.18 0.00 184.85 0.00 175.61 0.00 16,363.03 0.00 0.002018

95.17 0.00 106.40 0.00 101.08 0.00 9,619.89 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 12,179.06 0.00 0.00 -12,179.06 0.00 0.00 -11,305.44

4.002011 0.00 0.00 0.00 0.00 0.00 66,269.70 0.00 0.00 46,154.07

4.002012 0.00 0.00 0.00 0.00 0.00 41,389.46 0.00 0.00 78,542.82

4.002013 0.00 0.00 0.00 0.00 0.00 30,931.49 0.00 0.00 100,428.66

4.002014 0.00 0.00 0.00 0.00 0.00 25,532.35 0.00 0.00 116,773.99

4.002015 0.00 0.00 0.00 0.00 0.00 21,717.58 0.00 0.00 129,355.93

4.002016 0.00 0.00 0.00 3,414.44 0.00 16,321.07 0.00 0.00 137,914.84

4.002017 0.00 0.00 0.00 12,035.68 0.00 5,893.26 0.00 0.00 140,716.58

4.002018 0.00 0.00 0.00 11,004.39 0.00 5,358.64 0.00 0.00 143,021.30

4.002019 0.00 0.00 0.00 6,396.75 0.00 3,223.14 0.00 0.00 144,342.88

0.002020 0.00 0.00 738.63 0.00 0.00 -738.63 0.00 0.00 144,083.20

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 12,917.69 32,851.26 0.00 203,719.00 0.00

0.00 0.00

0.00

0.00

144,083.20

0.00 0.00

83.14 0.00

0.00

3,480.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

3,480.00 0.00 3,000.70 0.00 249,487.95 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

13.46 / 16.77

1.14

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

170,508.26 144,083.20 122,819.84

20.00% :50.00% :

105,524.72 48,155.72

PW 30,940.7470.00% :

11,565.13

337.50

Hud Eco Detailed.rpt 70

Page 267: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONOFFSHORE LOCATION

SONGKHLA OLIGOCENE WEDGE FieldPossible Rsv Class

Undeveloped Rsv Category

03/30/2010 11:19:40AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 1,081.57 0.00 865.25 0.00 66,269.70 0.00 0.002011

79.59 0.00 611.80 0.00 520.03 0.00 41,389.46 0.00 0.002012

82.59 0.00 432.93 0.00 374.52 0.00 30,931.49 0.00 0.002013

85.59 0.00 338.18 0.00 298.31 0.00 25,532.35 0.00 0.002014

87.43 0.00 278.65 0.00 248.40 0.00 21,717.58 0.00 0.002015

89.31 0.00 238.20 0.00 220.98 0.00 19,735.50 0.00 0.002016

91.23 0.00 207.42 0.00 196.52 0.00 17,928.94 0.00 0.002017

93.18 0.00 184.85 0.00 175.61 0.00 16,363.03 0.00 0.002018

95.17 0.00 106.40 0.00 101.08 0.00 9,619.89 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 12,179.06 0.00 0.00 -12,179.06 0.00 0.00 -11,305.44

4.002011 0.00 0.00 0.00 0.00 0.00 66,269.70 0.00 0.00 46,154.07

4.002012 0.00 0.00 0.00 0.00 0.00 41,389.46 0.00 0.00 78,542.82

4.002013 0.00 0.00 0.00 0.00 0.00 30,931.49 0.00 0.00 100,428.66

4.002014 0.00 0.00 0.00 0.00 0.00 25,532.35 0.00 0.00 116,773.99

4.002015 0.00 0.00 0.00 0.00 0.00 21,717.58 0.00 0.00 129,355.93

4.002016 0.00 0.00 0.00 3,414.44 0.00 16,321.07 0.00 0.00 137,914.84

4.002017 0.00 0.00 0.00 12,035.68 0.00 5,893.26 0.00 0.00 140,716.58

4.002018 0.00 0.00 0.00 11,004.39 0.00 5,358.64 0.00 0.00 143,021.30

4.002019 0.00 0.00 0.00 6,396.75 0.00 3,223.14 0.00 0.00 144,342.88

0.002020 0.00 0.00 738.63 0.00 0.00 -738.63 0.00 0.00 144,083.20

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 12,917.69 32,851.26 0.00 203,719.00 0.00

0.00 0.00

0.00

0.00

144,083.20

0.00 0.00

83.14 0.00

0.00

3,480.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

3,480.00 0.00 3,000.70 0.00 249,487.95 0.00 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

13.46 / 16.77

1.14

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

170,508.26 144,083.20 122,819.84

20.00% :50.00% :

105,524.72 48,155.72

PW 30,940.7470.00% :

11,565.13

337.50

Hud Eco Detailed.rpt 71

Page 268: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Possible Undeveloped

SONGKHLA OLIGOCENE WEDGE

COASTAL ENERGYOLIGOCENE C WEDGE

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA - POSS WEDGE12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

76.59 0.00 1,081.57 0.00 865.25 0.00 66,269.70 0.00 0.002011

79.59 0.00 611.80 0.00 520.03 0.00 41,389.46 0.00 0.002012

82.59 0.00 432.93 0.00 374.52 0.00 30,931.49 0.00 0.002013

85.59 0.00 338.18 0.00 298.31 0.00 25,532.35 0.00 0.002014

87.43 0.00 278.65 0.00 248.40 0.00 21,717.58 0.00 0.002015

89.31 0.00 238.20 0.00 220.98 0.00 19,735.50 0.00 0.002016

91.23 0.00 207.42 0.00 196.52 0.00 17,928.94 0.00 0.002017

93.18 0.00 184.85 0.00 175.61 0.00 16,363.03 0.00 0.002018

95.17 0.00 106.40 0.00 101.08 0.00 9,619.89 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

0.002010 0.00 0.00 12,179.06 0.00 0.00 -12,179.06 0.00 0.00 -11,305.44

3.002011 0.00 0.00 0.00 0.00 0.00 66,269.70 0.00 0.00 46,154.07

3.002012 0.00 0.00 0.00 0.00 0.00 41,389.46 0.00 0.00 78,542.82

3.002013 0.00 0.00 0.00 0.00 0.00 30,931.49 0.00 0.00 100,428.66

3.002014 0.00 0.00 0.00 0.00 0.00 25,532.35 0.00 0.00 116,773.99

3.002015 0.00 0.00 0.00 0.00 0.00 21,717.58 0.00 0.00 129,355.93

3.002016 0.00 0.00 0.00 0.00 0.00 19,735.50 0.00 0.00 139,702.69

3.002017 0.00 0.00 0.00 0.00 0.00 17,928.94 0.00 0.00 148,209.37

3.002018 0.00 0.00 0.00 0.00 0.00 16,363.03 0.00 0.00 155,236.09

3.002019 0.00 0.00 0.00 0.00 0.00 9,619.89 0.00 0.00 159,042.53

0.002020 0.00 0.00 738.63 0.00 0.00 -738.63 0.00 0.00 158,782.85

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 12,917.69 0.00 0.00 236,570.26 0.00

0.00 0.00

0.00

0.00

158,782.85

0.00 0.00

83.14 0.00

0.00

3,480.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

3,480.00 0.00 3,000.70 0.00 249,487.95 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

70.57

bbl/monthbbl/month

% year b = 1.100

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

08/18/2019

14.73 / 19.31

1.14

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

192,440.10 158,782.85 132,710.53

20.00% :50.00% :

112,205.28 48,841.20

PW 31,101.7970.00% :

11,565.13

136,875.00 13,618.86

337.50

Hud Eco Detailed.rpt 72

Page 269: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Possible Undeveloped

SONGKHLA OLIGOCENE WEDGE

COASTAL ENERGYOLIGOCENE C WEDGE

BLOCK G5-43, OFFSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SONGKHLA - POSS WEDGE LOE12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002012

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002012 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002013 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002014 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002016 0.00 0.00 0.00 3,414.44 0.00 -3,414.44 0.00 0.00 -1,787.85

1.002017 0.00 0.00 0.00 12,035.68 0.00 -12,035.68 0.00 0.00 -7,492.79

1.002018 0.00 0.00 0.00 11,004.39 0.00 -11,004.39 0.00 0.00 -12,214.80

1.002019 0.00 0.00 0.00 6,396.75 0.00 -6,396.75 0.00 0.00 -14,699.65

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 32,851.26 0.00 -32,851.26 0.00

0.00 0.00

0.00

0.00

-14,699.65

0.00 0.00

0.00 0.00

0.00

0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Oil

0 - 0

0.00

bbl/monthbbl/month

% year b = 0.000

0.000

0.000

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

1.00000000

1.00000000

12/31/2019

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

-21,931.85-14,699.65

-9,890.6920.00% :50.00% :

-6,680.56-685.48

PW -161.0570.00% :

0.00

0.00 0.00

0.00

Hud Eco Detailed.rpt 73

Page 270: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONONSHORE LOCATION

03/30/2010 11:19:40AMDate :

94,621.24

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

502.93

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

69.09 6.67 186.23 35,405.00 20.60 3,916.50 1,423.31 26,118.50 0.002010

71.95 6.92 193.91 36,865.00 21.45 4,078.01 1,543.35 28,209.80 0.002011

74.80 6.39 202.04 38,410.00 22.35 4,248.91 1,671.73 27,152.75 0.002012

77.66 6.61 211.19 40,150.00 23.36 4,441.39 1,814.28 29,364.68 0.002013

80.52 6.83 220.79 41,975.00 24.42 4,643.27 1,966.60 31,730.54 0.002014

82.28 6.97 232.31 44,165.00 25.70 4,885.53 2,114.42 34,051.45 0.002015

84.07 6.98 244.27 46,440.00 27.02 5,137.19 2,271.71 35,840.98 0.002016

85.90 7.12 251.51 47,815.00 27.82 5,289.30 2,389.89 37,638.22 0.002017

87.76 7.26 255.35 48,545.00 28.25 5,370.05 2,478.92 38,970.75 0.002018

89.65 7.40 259.19 49,275.00 28.67 5,450.80 2,570.37 40,347.59 0.002019

90.54 7.11 259.63 49,360.00 28.72 5,460.20 2,600.46 38,827.45 0.002020

92.36 7.24 259.19 49,275.00 28.67 5,450.80 2,647.98 39,438.42 0.002021

94.20 7.36 259.19 49,275.00 28.67 5,450.80 2,700.88 40,127.02 0.002022

96.08 7.49 259.19 49,275.00 28.67 5,450.80 2,754.86 40,831.76 0.002023

98.01 7.62 259.90 49,410.00 28.75 5,465.73 2,817.69 41,661.08 0.002024

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

5.002010 0.00 0.00 1,723.51 1,646.96 0.00 24,130.84 40.49 0.00 22,967.54

5.002011 0.00 0.00 1,080.83 1,679.88 0.00 26,950.27 42.16 0.00 46,189.00

5.002012 0.00 0.00 6,163.26 1,713.53 0.00 20,903.75 43.93 0.00 62,492.27

5.002013 0.00 0.00 4,552.19 1,747.80 0.00 24,833.05 45.92 0.00 80,023.15

5.002014 0.00 0.00 13.82 1,782.73 0.00 31,852.58 48.01 0.00 100,379.70

5.002015 0.00 0.00 0.00 1,818.36 0.00 34,297.00 50.51 0.00 120,222.34

5.002016 0.00 0.00 0.00 1,854.78 0.00 36,204.79 53.12 0.00 139,181.38

5.002017 0.00 0.00 0.00 1,891.87 0.00 38,081.55 54.69 0.00 157,232.54

5.002018 0.00 0.00 0.00 1,929.68 0.00 39,464.46 55.52 0.00 174,167.25

5.002019 0.00 0.00 0.00 1,968.25 0.00 40,893.36 56.36 0.00 190,052.91

5.002020 0.00 0.00 0.00 2,007.68 0.00 39,363.77 56.46 0.00 203,893.24

5.002021 0.00 0.00 0.00 2,047.73 0.00 39,982.31 56.36 0.00 216,616.55

2.002022 0.00 0.00 740.75 2,088.75 0.00 39,942.04 56.36 0.00 228,123.56

2.002023 0.00 0.00 0.00 2,130.50 0.00 41,399.77 56.36 0.00 238,920.75

2.002024 0.00 0.00 0.00 2,173.17 0.00 42,249.09 56.51 0.00 248,894.31

Rem.

Total

0.00 0.00 98.69 16,240.87 0.00 312,047.75

0.00 0.00 14,373.06 44,722.54 0.00 832,596.37 1,162.02

389.26 0.00

0.00

50,321.10

299,215.41

106.07 8.18

92.65 7.46

0.00

5,846.96 1,110,596.24

1,790.16 340,335.00 198.03 37,647.86 21,004.16 307,772.41

5,344.03 1,015,975.00 591.16 112,387.15 54,770.60 838,083.39 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

28.64 / 58.93

0.56

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

476,351.54 299,215.41 204,518.87

20.00% :50.00% :

150,025.36 52,891.48

PW 36,965.4270.00% :

10,824.76

>1000

Hud Eco Detailed.rpt 74

Page 271: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONONSHORE LOCATION

SINPHUHORM Field

03/30/2010 11:19:40AMDate :

94,621.24

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

502.93

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

69.09 6.67 186.23 35,405.00 20.60 3,916.50 1,423.31 26,118.50 0.002010

71.95 6.92 193.91 36,865.00 21.45 4,078.01 1,543.35 28,209.80 0.002011

74.80 6.39 202.04 38,410.00 22.35 4,248.91 1,671.73 27,152.75 0.002012

77.66 6.61 211.19 40,150.00 23.36 4,441.39 1,814.28 29,364.68 0.002013

80.52 6.83 220.79 41,975.00 24.42 4,643.27 1,966.60 31,730.54 0.002014

82.28 6.97 232.31 44,165.00 25.70 4,885.53 2,114.42 34,051.45 0.002015

84.07 6.98 244.27 46,440.00 27.02 5,137.19 2,271.71 35,840.98 0.002016

85.90 7.12 251.51 47,815.00 27.82 5,289.30 2,389.89 37,638.22 0.002017

87.76 7.26 255.35 48,545.00 28.25 5,370.05 2,478.92 38,970.75 0.002018

89.65 7.40 259.19 49,275.00 28.67 5,450.80 2,570.37 40,347.59 0.002019

90.54 7.11 259.63 49,360.00 28.72 5,460.20 2,600.46 38,827.45 0.002020

92.36 7.24 259.19 49,275.00 28.67 5,450.80 2,647.98 39,438.42 0.002021

94.20 7.36 259.19 49,275.00 28.67 5,450.80 2,700.88 40,127.02 0.002022

96.08 7.49 259.19 49,275.00 28.67 5,450.80 2,754.86 40,831.76 0.002023

98.01 7.62 259.90 49,410.00 28.75 5,465.73 2,817.69 41,661.08 0.002024

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

5.002010 0.00 0.00 1,723.51 1,646.96 0.00 24,130.84 40.49 0.00 22,967.54

5.002011 0.00 0.00 1,080.83 1,679.88 0.00 26,950.27 42.16 0.00 46,189.00

5.002012 0.00 0.00 6,163.26 1,713.53 0.00 20,903.75 43.93 0.00 62,492.27

5.002013 0.00 0.00 4,552.19 1,747.80 0.00 24,833.05 45.92 0.00 80,023.15

5.002014 0.00 0.00 13.82 1,782.73 0.00 31,852.58 48.01 0.00 100,379.70

5.002015 0.00 0.00 0.00 1,818.36 0.00 34,297.00 50.51 0.00 120,222.34

5.002016 0.00 0.00 0.00 1,854.78 0.00 36,204.79 53.12 0.00 139,181.38

5.002017 0.00 0.00 0.00 1,891.87 0.00 38,081.55 54.69 0.00 157,232.54

5.002018 0.00 0.00 0.00 1,929.68 0.00 39,464.46 55.52 0.00 174,167.25

5.002019 0.00 0.00 0.00 1,968.25 0.00 40,893.36 56.36 0.00 190,052.91

5.002020 0.00 0.00 0.00 2,007.68 0.00 39,363.77 56.46 0.00 203,893.24

5.002021 0.00 0.00 0.00 2,047.73 0.00 39,982.31 56.36 0.00 216,616.55

2.002022 0.00 0.00 740.75 2,088.75 0.00 39,942.04 56.36 0.00 228,123.56

2.002023 0.00 0.00 0.00 2,130.50 0.00 41,399.77 56.36 0.00 238,920.75

2.002024 0.00 0.00 0.00 2,173.17 0.00 42,249.09 56.51 0.00 248,894.31

Rem.

Total

0.00 0.00 98.69 16,240.87 0.00 312,047.75

0.00 0.00 14,373.06 44,722.54 0.00 832,596.37 1,162.02

389.26 0.00

0.00

50,321.10

299,215.41

106.07 8.18

92.65 7.46

0.00

5,846.96 1,110,596.24

1,790.16 340,335.00 198.03 37,647.86 21,004.16 307,772.41

5,344.03 1,015,975.00 591.16 112,387.15 54,770.60 838,083.39 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

28.64 / 58.93

0.56

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

476,351.54 299,215.41 204,518.87

20.00% :50.00% :

150,025.36 52,891.48

PW 36,965.4270.00% :

10,824.76

>1000

Hud Eco Detailed.rpt 75

Page 272: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONONSHORE LOCATION

SINPHUHORM FieldProved Rsv Class

03/30/2010 11:19:40AMDate :

94,621.24

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

502.93

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

69.09 6.67 163.19 31,025.00 18.05 3,431.99 1,247.23 22,887.34 0.002010

71.95 6.92 163.19 31,025.00 18.05 3,431.99 1,298.86 23,740.92 0.002011

74.80 6.39 163.64 31,110.00 18.10 3,441.39 1,354.01 21,992.24 0.002012

77.66 6.61 163.19 31,025.00 18.05 3,431.99 1,401.94 22,690.89 0.002013

80.52 6.83 163.19 31,025.00 18.05 3,431.99 1,453.57 23,453.01 0.002014

82.28 6.97 163.19 31,025.00 18.05 3,431.99 1,485.34 23,920.44 0.002015

84.07 6.98 163.64 31,110.00 18.10 3,441.39 1,521.81 24,009.75 0.002016

85.90 7.12 163.19 31,025.00 18.05 3,431.99 1,550.69 24,421.75 0.002017

87.76 7.26 163.19 31,025.00 18.05 3,431.99 1,584.26 24,906.12 0.002018

89.65 7.40 163.19 31,025.00 18.05 3,431.99 1,618.38 25,404.04 0.002019

90.54 7.11 163.64 31,110.00 18.10 3,441.39 1,639.00 24,471.67 0.002020

92.27 7.24 148.44 28,220.00 16.42 3,121.70 1,515.14 22,586.55 0.002021

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002022

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

3.002010 0.00 0.00 1,723.51 1,646.96 0.00 20,728.61 35.48 0.00 19,728.69

3.002011 0.00 0.00 1,080.83 1,679.88 0.00 22,243.58 35.48 0.00 38,893.92

3.002012 0.00 0.00 3,506.68 1,713.53 0.00 18,090.45 35.58 0.00 53,002.57

3.002013 0.00 0.00 2,723.18 1,747.80 0.00 19,586.36 35.48 0.00 66,828.73

3.002014 0.00 0.00 13.82 1,782.73 0.00 23,074.54 35.48 0.00 81,574.45

3.002015 0.00 0.00 0.00 1,818.36 0.00 23,551.94 35.48 0.00 95,199.55

3.002016 0.00 0.00 0.00 1,854.78 0.00 23,641.20 35.58 0.00 107,579.06

3.002017 0.00 0.00 0.00 1,891.87 0.00 24,045.08 35.48 0.00 118,975.81

3.002018 0.00 0.00 0.00 1,929.68 0.00 24,525.22 35.48 0.00 129,499.01

3.002019 0.00 0.00 0.00 1,968.25 0.00 25,018.69 35.48 0.00 139,217.07

3.002020 0.00 0.00 0.00 2,007.68 0.00 24,067.41 35.58 0.00 147,678.83

3.002021 0.00 0.00 0.00 1,864.06 0.00 22,205.35 32.28 0.00 154,776.76

0.002022 0.00 0.00 740.75 0.00 0.00 -740.75 0.00 0.00 154,563.33

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 9,788.79 21,905.57 0.00 270,037.67 422.90

0.00 0.00

0.00

0.00

154,563.33

0.00 0.00

82.13 6.96

0.00

2,447.82 464,371.24

0.00 0.00 0.00 0.00 0.00 0.00

1,944.89 369,750.00 215.14 40,901.75 17,670.22 284,484.72 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

21.74 / 28.59

0.44

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

201,270.08 154,563.33 122,141.99

20.00% :50.00% :

99,124.29 42,741.51

PW 30,703.9370.00% :

7,451.30

>1000

Hud Eco Detailed.rpt 76

Page 273: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONONSHORE LOCATION

SINPHUHORM FieldProved Rsv Class

Producing Rsv Category

03/30/2010 11:19:40AMDate :

94,621.24

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

502.93

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

69.09 6.67 163.19 31,025.00 18.05 3,431.99 1,247.23 22,887.34 0.002010

71.95 6.92 163.19 31,025.00 18.05 3,431.99 1,298.86 23,740.92 0.002011

74.80 6.39 163.64 31,110.00 18.10 3,441.39 1,354.01 21,992.24 0.002012

77.66 6.61 163.19 31,025.00 18.05 3,431.99 1,401.94 22,690.89 0.002013

80.52 6.83 163.19 31,025.00 18.05 3,431.99 1,453.57 23,453.01 0.002014

82.28 6.97 163.19 31,025.00 18.05 3,431.99 1,485.34 23,920.44 0.002015

84.07 6.98 163.64 31,110.00 18.10 3,441.39 1,521.81 24,009.75 0.002016

85.90 7.12 163.19 31,025.00 18.05 3,431.99 1,550.69 24,421.75 0.002017

87.76 7.26 163.19 31,025.00 18.05 3,431.99 1,584.26 24,906.12 0.002018

89.65 7.40 163.19 31,025.00 18.05 3,431.99 1,618.38 25,404.04 0.002019

90.54 7.11 163.64 31,110.00 18.10 3,441.39 1,639.00 24,471.67 0.002020

92.27 7.24 148.44 28,220.00 16.42 3,121.70 1,515.14 22,586.55 0.002021

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002022

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

3.002010 0.00 0.00 1,723.51 1,646.96 0.00 20,728.61 35.48 0.00 19,728.69

3.002011 0.00 0.00 1,080.83 1,679.88 0.00 22,243.58 35.48 0.00 38,893.92

3.002012 0.00 0.00 3,506.68 1,713.53 0.00 18,090.45 35.58 0.00 53,002.57

3.002013 0.00 0.00 2,723.18 1,747.80 0.00 19,586.36 35.48 0.00 66,828.73

3.002014 0.00 0.00 13.82 1,782.73 0.00 23,074.54 35.48 0.00 81,574.45

3.002015 0.00 0.00 0.00 1,818.36 0.00 23,551.94 35.48 0.00 95,199.55

3.002016 0.00 0.00 0.00 1,854.78 0.00 23,641.20 35.58 0.00 107,579.06

3.002017 0.00 0.00 0.00 1,891.87 0.00 24,045.08 35.48 0.00 118,975.81

3.002018 0.00 0.00 0.00 1,929.68 0.00 24,525.22 35.48 0.00 129,499.01

3.002019 0.00 0.00 0.00 1,968.25 0.00 25,018.69 35.48 0.00 139,217.07

3.002020 0.00 0.00 0.00 2,007.68 0.00 24,067.41 35.58 0.00 147,678.83

3.002021 0.00 0.00 0.00 1,864.06 0.00 22,205.35 32.28 0.00 154,776.76

0.002022 0.00 0.00 740.75 0.00 0.00 -740.75 0.00 0.00 154,563.33

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 9,788.79 21,905.57 0.00 270,037.67 422.90

0.00 0.00

0.00

0.00

154,563.33

0.00 0.00

82.13 6.96

0.00

2,447.82 464,371.24

0.00 0.00 0.00 0.00 0.00 0.00

1,944.89 369,750.00 215.14 40,901.75 17,670.22 284,484.72 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

21.74 / 28.59

0.44

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

201,270.08 154,563.33 122,141.99

20.00% :50.00% :

99,124.29 42,741.51

PW 30,703.9370.00% :

7,451.30

>1000

Hud Eco Detailed.rpt 77

Page 274: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Proved Producing

SINPHUHORM

HESSPHA NOK KHAO

BLOCK EU1/E5N, ONSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

502.93

94,621.24

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SINPHUHORM - PDP CASE12/31/2009

69.09 6.67 163.19 31,025.00 18.05 3,431.99 1,247.23 22,887.34 0.002010

71.95 6.92 163.19 31,025.00 18.05 3,431.99 1,298.86 23,740.92 0.002011

74.80 6.39 163.64 31,110.00 18.10 3,441.39 1,354.01 21,992.24 0.002012

77.66 6.61 163.19 31,025.00 18.05 3,431.99 1,401.94 22,690.89 0.002013

80.52 6.83 163.19 31,025.00 18.05 3,431.99 1,453.57 23,453.01 0.002014

82.28 6.97 163.19 31,025.00 18.05 3,431.99 1,485.34 23,920.44 0.002015

84.07 6.98 163.64 31,110.00 18.10 3,441.39 1,521.81 24,009.75 0.002016

85.90 7.12 163.19 31,025.00 18.05 3,431.99 1,550.69 24,421.75 0.002017

87.76 7.26 163.19 31,025.00 18.05 3,431.99 1,584.26 24,906.12 0.002018

89.65 7.40 163.19 31,025.00 18.05 3,431.99 1,618.38 25,404.04 0.002019

90.54 7.11 163.64 31,110.00 18.10 3,441.39 1,639.00 24,471.67 0.002020

92.27 7.24 148.44 28,220.00 16.42 3,121.70 1,515.14 22,586.55 0.002021

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002022

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

3.002010 0.00 0.00 1,723.51 1,646.96 0.00 20,728.61 35.48 0.00 19,728.69

3.002011 0.00 0.00 1,080.83 1,679.88 0.00 22,243.58 35.48 0.00 38,893.92

3.002012 0.00 0.00 3,506.68 1,713.53 0.00 18,090.45 35.58 0.00 53,002.57

3.002013 0.00 0.00 2,723.18 1,747.80 0.00 19,586.36 35.48 0.00 66,828.73

3.002014 0.00 0.00 13.82 1,782.73 0.00 23,074.54 35.48 0.00 81,574.45

3.002015 0.00 0.00 0.00 1,818.36 0.00 23,551.94 35.48 0.00 95,199.55

3.002016 0.00 0.00 0.00 1,854.78 0.00 23,641.20 35.58 0.00 107,579.06

3.002017 0.00 0.00 0.00 1,891.87 0.00 24,045.08 35.48 0.00 118,975.81

3.002018 0.00 0.00 0.00 1,929.68 0.00 24,525.22 35.48 0.00 129,499.01

3.002019 0.00 0.00 0.00 1,968.25 0.00 25,018.69 35.48 0.00 139,217.07

3.002020 0.00 0.00 0.00 2,007.68 0.00 24,067.41 35.58 0.00 147,678.83

3.002021 0.00 0.00 0.00 1,864.06 0.00 22,205.35 32.28 0.00 154,776.76

0.002022 0.00 0.00 740.75 0.00 0.00 -740.75 0.00 0.00 154,563.33

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 9,788.79 21,905.57 0.00 270,037.67 422.90

0.00 0.00

0.00

0.00

154,563.33

0.00 0.00

82.13 6.96

0.00

2,447.82 464,371.24

0.00 0.00 0.00 0.00 0.00 0.00

1,944.89 369,750.00 215.14 40,901.75 17,670.22 284,484.72 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Gas

0 - 0

0.00

Mcf/monthMcf/month

% year b = 0.000

0.005

0.005

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

0.12642000

0.11062000

11/28/2021

21.75 / 28.59

0.44

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

201,270.08 154,563.33 122,141.99

20.00% :50.00% :

99,124.29 42,741.51

PW 30,703.9370.00% :

7,451.30

2,585,416.67 2,585,416.67

>1000

Hud Eco Detailed.rpt 78

Page 275: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONONSHORE LOCATION

SINPHUHORM FieldProbable Rsv Class

03/30/2010 11:19:40AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

69.09 6.67 23.04 4,380.00 2.55 484.52 176.08 3,231.15 0.002010

71.95 6.92 30.72 5,840.00 3.40 646.02 244.49 4,468.88 0.002011

74.80 6.39 38.40 7,300.00 4.25 807.53 317.72 5,160.51 0.002012

77.66 6.61 48.00 9,125.00 5.31 1,009.41 412.34 6,673.79 0.002013

80.52 6.83 57.60 10,950.00 6.37 1,211.29 513.03 8,277.53 0.002014

82.28 6.97 69.12 13,140.00 7.65 1,453.55 629.08 10,131.01 0.002015

84.07 6.98 80.64 15,330.00 8.92 1,695.80 749.90 11,831.23 0.002016

85.90 7.12 88.32 16,790.00 9.77 1,857.31 839.20 13,216.48 0.002017

87.76 7.26 92.16 17,520.00 10.19 1,938.06 894.65 14,064.63 0.002018

89.65 7.40 96.00 18,250.00 10.62 2,018.82 951.99 14,943.55 0.002019

90.54 7.11 96.00 18,250.00 10.62 2,018.82 961.46 14,355.77 0.002020

92.47 7.24 110.75 21,055.00 12.25 2,329.10 1,132.84 16,851.87 0.002021

94.20 7.36 259.19 49,275.00 28.67 5,450.80 2,700.88 40,127.02 0.002022

96.08 7.49 259.19 49,275.00 28.67 5,450.80 2,754.86 40,831.76 0.002023

98.01 7.62 259.90 49,410.00 28.75 5,465.73 2,817.69 41,661.08 0.002024

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

2.002010 0.00 0.00 0.00 0.00 0.00 3,402.23 5.01 0.00 3,238.85

2.002011 0.00 0.00 0.00 0.00 0.00 4,706.69 6.68 0.00 7,295.07

2.002012 0.00 0.00 2,656.58 0.00 0.00 2,813.30 8.35 0.00 9,489.70

2.002013 0.00 0.00 1,829.00 0.00 0.00 5,246.69 10.44 0.00 13,194.42

2.002014 0.00 0.00 0.00 0.00 0.00 8,778.04 12.52 0.00 18,805.24

2.002015 0.00 0.00 0.00 0.00 0.00 10,745.06 15.03 0.00 25,022.78

2.002016 0.00 0.00 0.00 0.00 0.00 12,563.59 17.53 0.00 31,602.32

2.002017 0.00 0.00 0.00 0.00 0.00 14,036.47 19.20 0.00 38,256.73

2.002018 0.00 0.00 0.00 0.00 0.00 14,939.24 20.04 0.00 44,668.23

2.002019 0.00 0.00 0.00 0.00 0.00 15,874.67 20.87 0.00 50,835.83

2.002020 0.00 0.00 0.00 0.00 0.00 15,296.36 20.87 0.00 56,214.41

2.002021 0.00 0.00 0.00 183.68 0.00 17,776.96 24.08 0.00 61,839.79

2.002022 0.00 0.00 0.00 2,088.75 0.00 40,682.80 56.36 0.00 73,560.22

2.002023 0.00 0.00 0.00 2,130.50 0.00 41,399.77 56.36 0.00 84,357.42

2.002024 0.00 0.00 0.00 2,173.17 0.00 42,249.09 56.51 0.00 94,330.97

Rem.

Total

0.00 0.00 98.69 16,240.87 0.00 312,047.75

0.00 0.00 4,584.27 22,816.96 0.00 562,558.70 739.12

389.26 0.00

0.00

50,321.10

144,652.08

106.07 8.18

98.67 7.74

0.00

3,399.15 646,225.00

1,790.16 340,335.00 198.03 37,647.86 21,004.16 307,772.41

3,399.15 646,225.00 376.01 71,485.41 37,100.38 553,598.67 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

43.88 / 123.71

1.25

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

275,081.46 144,652.08

82,376.8820.00% :50.00% :

50,901.07 10,149.97

PW 6,261.4970.00% :

3,373.46

>1000

Hud Eco Detailed.rpt 79

Page 276: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Net

Gas

(MMcf)

As Of Date : 12/31/2009

Discount Rate (%) : 10.00

All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

ECONOMIC SUMMARY PROJECTIONONSHORE LOCATION

SINPHUHORM FieldProbable Rsv Class

Undeveloped Rsv Category

03/30/2010 11:19:40AMDate :

0.00

Project Name :

Partner :

Case Type :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

REPORT BREAK TOTAL CASE

69.09 6.67 23.04 4,380.00 2.55 484.52 176.08 3,231.15 0.002010

71.95 6.92 30.72 5,840.00 3.40 646.02 244.49 4,468.88 0.002011

74.80 6.39 38.40 7,300.00 4.25 807.53 317.72 5,160.51 0.002012

77.66 6.61 48.00 9,125.00 5.31 1,009.41 412.34 6,673.79 0.002013

80.52 6.83 57.60 10,950.00 6.37 1,211.29 513.03 8,277.53 0.002014

82.28 6.97 69.12 13,140.00 7.65 1,453.55 629.08 10,131.01 0.002015

84.07 6.98 80.64 15,330.00 8.92 1,695.80 749.90 11,831.23 0.002016

85.90 7.12 88.32 16,790.00 9.77 1,857.31 839.20 13,216.48 0.002017

87.76 7.26 92.16 17,520.00 10.19 1,938.06 894.65 14,064.63 0.002018

89.65 7.40 96.00 18,250.00 10.62 2,018.82 951.99 14,943.55 0.002019

90.54 7.11 96.00 18,250.00 10.62 2,018.82 961.46 14,355.77 0.002020

92.47 7.24 110.75 21,055.00 12.25 2,329.10 1,132.84 16,851.87 0.002021

94.20 7.36 259.19 49,275.00 28.67 5,450.80 2,700.88 40,127.02 0.002022

96.08 7.49 259.19 49,275.00 28.67 5,450.80 2,754.86 40,831.76 0.002023

98.01 7.62 259.90 49,410.00 28.75 5,465.73 2,817.69 41,661.08 0.002024

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

2.002010 0.00 0.00 0.00 0.00 0.00 3,402.23 5.01 0.00 3,238.85

2.002011 0.00 0.00 0.00 0.00 0.00 4,706.69 6.68 0.00 7,295.07

2.002012 0.00 0.00 2,656.58 0.00 0.00 2,813.30 8.35 0.00 9,489.70

2.002013 0.00 0.00 1,829.00 0.00 0.00 5,246.69 10.44 0.00 13,194.42

2.002014 0.00 0.00 0.00 0.00 0.00 8,778.04 12.52 0.00 18,805.24

2.002015 0.00 0.00 0.00 0.00 0.00 10,745.06 15.03 0.00 25,022.78

2.002016 0.00 0.00 0.00 0.00 0.00 12,563.59 17.53 0.00 31,602.32

2.002017 0.00 0.00 0.00 0.00 0.00 14,036.47 19.20 0.00 38,256.73

2.002018 0.00 0.00 0.00 0.00 0.00 14,939.24 20.04 0.00 44,668.23

2.002019 0.00 0.00 0.00 0.00 0.00 15,874.67 20.87 0.00 50,835.83

2.002020 0.00 0.00 0.00 0.00 0.00 15,296.36 20.87 0.00 56,214.41

2.002021 0.00 0.00 0.00 183.68 0.00 17,776.96 24.08 0.00 61,839.79

2.002022 0.00 0.00 0.00 2,088.75 0.00 40,682.80 56.36 0.00 73,560.22

2.002023 0.00 0.00 0.00 2,130.50 0.00 41,399.77 56.36 0.00 84,357.42

2.002024 0.00 0.00 0.00 2,173.17 0.00 42,249.09 56.51 0.00 94,330.97

Rem.

Total

0.00 0.00 98.69 16,240.87 0.00 312,047.75

0.00 0.00 4,584.27 22,816.96 0.00 562,558.70 739.12

389.26 0.00

0.00

50,321.10

144,652.08

106.07 8.18

98.67 7.74

0.00

3,399.15 646,225.00

1,790.16 340,335.00 198.03 37,647.86 21,004.16 307,772.41

3,399.15 646,225.00 376.01 71,485.41 37,100.38 553,598.67 0.00

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

43.88 / 123.71

1.25

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

275,081.46 144,652.08

82,376.8820.00% :50.00% :

50,901.07 10,149.97

PW 6,261.4970.00% :

3,373.46

>1000

Hud Eco Detailed.rpt 80

Page 277: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Probable Undeveloped

SINPHUHORM

HESSPHA NOK KHAO

BLOCK EU1/E5N, ONSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SINPHUHORM - PTT PROB PRIMARY12/31/2009

69.09 6.67 5.76 1,095.00 0.64 121.13 44.02 807.79 0.002010

71.95 6.92 11.52 2,190.00 1.27 242.26 91.68 1,675.83 0.002011

74.80 6.39 17.28 3,285.00 1.91 363.39 142.97 2,322.23 0.002012

77.66 6.61 23.04 4,380.00 2.55 484.52 197.92 3,203.42 0.002013

80.52 6.83 28.80 5,475.00 3.19 605.64 256.52 4,138.77 0.002014

82.28 6.97 34.56 6,570.00 3.82 726.77 314.54 5,065.51 0.002015

84.07 6.98 40.32 7,665.00 4.46 847.90 374.95 5,915.61 0.002016

85.90 7.12 44.16 8,395.00 4.88 928.65 419.60 6,608.24 0.002017

87.76 7.26 44.16 8,395.00 4.88 928.65 428.69 6,739.30 0.002018

89.65 7.40 44.16 8,395.00 4.88 928.65 437.92 6,874.03 0.002019

90.54 7.11 44.16 8,395.00 4.88 928.65 442.28 6,603.65 0.002020

92.28 7.24 40.17 7,636.00 4.44 844.69 409.99 6,111.65 0.002021

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 850.56 1.25 0.00 809.71

1.002011 0.00 0.00 0.00 0.00 0.00 1,765.01 2.50 0.00 2,330.80

1.002012 0.00 0.00 2,656.58 0.00 0.00 -195.14 3.76 0.00 2,178.93

1.002013 0.00 0.00 1,829.00 0.00 0.00 1,567.33 5.01 0.00 3,285.75

1.002014 0.00 0.00 0.00 0.00 0.00 4,389.02 6.26 0.00 6,091.17

1.002015 0.00 0.00 0.00 0.00 0.00 5,372.53 7.51 0.00 9,199.93

1.002016 0.00 0.00 0.00 0.00 0.00 6,281.80 8.77 0.00 12,489.70

1.002017 0.00 0.00 0.00 0.00 0.00 7,018.24 9.60 0.00 15,816.91

1.002018 0.00 0.00 0.00 0.00 0.00 7,158.39 9.60 0.00 18,889.09

1.002019 0.00 0.00 0.00 0.00 0.00 7,302.35 9.60 0.00 21,726.18

1.002020 0.00 0.00 0.00 0.00 0.00 7,036.33 9.60 0.00 24,200.33

0.002021 0.00 0.00 0.00 0.00 0.00 6,512.91 8.73 0.00 26,281.96

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 4,485.58 0.00 0.00 55,059.31 82.21

0.00 0.00

0.00

0.00

26,281.96

0.00 0.00

85.15 7.05

0.00

378.07 71,876.00

0.00 0.00 0.00 0.00 0.00 0.00

378.07 71,876.00 41.82 7,950.92 3,561.07 56,066.03 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Gas

0 - 0

0.00

Mcf/monthMcf/month

% year b = 0.000

0.005

0.005

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

0.12642000

0.11062000

11/30/2021

8.82 / 13.27

2.76

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

37,649.91 26,281.96 18,747.32

20.00% :50.00% :

13,675.68 3,313.52

PW 1,892.7370.00% :

3,362.96

91,250.00 694,190.00

>1000

Hud Eco Detailed.rpt 81

Page 278: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Probable Undeveloped

SINPHUHORM

HESSPHA NOK KHAO

BLOCK EU1/E5N, ONSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SINPHUHORM - PTT PROB EXTENTION12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002012

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

93.19 7.24 18.75 3,564.00 2.07 394.25 193.25 2,852.53 0.002021

94.20 7.36 207.35 39,420.00 22.94 4,360.64 2,160.71 32,101.62 0.002022

96.08 7.49 207.35 39,420.00 22.94 4,360.64 2,203.89 32,665.41 0.002023

98.01 7.62 207.92 39,528.00 23.00 4,372.59 2,254.15 33,328.87 0.002024

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

0.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002012 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002013 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002014 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002020 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002021 0.00 0.00 0.00 183.68 0.00 2,858.03 4.08 0.00 868.90

1.002022 0.00 0.00 0.00 2,088.75 0.00 32,128.49 45.09 0.00 10,124.89

1.002023 0.00 0.00 0.00 2,130.50 0.00 32,693.72 45.09 0.00 18,651.51

1.002024 0.00 0.00 0.00 2,173.17 0.00 33,364.64 45.21 0.00 26,527.76

Rem.

Total

0.00 0.00 98.69 16,240.87 0.00 246,370.29

0.00 0.00 98.69 22,816.96 0.00 347,415.16 450.87

311.41 0.00

0.00

39,731.46

66,259.21

106.07 8.18

102.96 7.96

0.00

2,073.49 394,200.00

1,432.13 272,268.00 158.42 30,118.29 16,803.33 246,217.93

2,073.49 394,200.00 229.37 43,606.40 23,615.32 347,166.35 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Gas

0 - 0

0.00

Mcf/monthMcf/month

% year b = 0.000

0.005

0.005

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

0.12642000

0.11062000

11/26/2031

6,311.72 / 3,521.32

11.88

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

149,918.69 66,259.21 29,967.97

20.00% :50.00% :

13,853.30 195.31

PW 14.5170.00% :

10.50

3,285,000.00 3,285,000.00

200.00

Hud Eco Detailed.rpt 82

Page 279: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Probable Undeveloped

SINPHUHORM

HESSPHA NOK KHAO

BLOCK EU1/E5N, ONSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SINPHUHORM - CNG PROB PRIMARY12/31/2009

69.09 6.67 17.28 3,285.00 1.91 363.39 132.06 2,423.37 0.002010

71.95 6.92 19.20 3,650.00 2.12 403.76 152.81 2,793.05 0.002011

74.80 6.39 21.12 4,015.00 2.34 444.14 174.75 2,838.28 0.002012

77.66 6.61 24.96 4,745.00 2.76 524.89 214.42 3,470.37 0.002013

80.52 6.83 28.80 5,475.00 3.19 605.64 256.52 4,138.77 0.002014

82.28 6.97 34.56 6,570.00 3.82 726.77 314.54 5,065.51 0.002015

84.07 6.98 40.32 7,665.00 4.46 847.90 374.95 5,915.61 0.002016

85.90 7.12 44.16 8,395.00 4.88 928.65 419.60 6,608.24 0.002017

87.76 7.26 48.00 9,125.00 5.31 1,009.41 465.97 7,325.33 0.002018

89.65 7.40 51.84 9,855.00 5.73 1,090.16 514.07 8,069.52 0.002019

90.54 7.11 51.84 9,855.00 5.73 1,090.16 519.19 7,752.12 0.002020

92.28 7.24 47.15 8,964.00 5.22 991.60 481.30 7,174.55 0.002021

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

1.002010 0.00 0.00 0.00 0.00 0.00 2,551.67 3.76 0.00 2,429.13

1.002011 0.00 0.00 0.00 0.00 0.00 2,941.68 4.17 0.00 4,964.28

1.002012 0.00 0.00 0.00 0.00 0.00 3,008.43 4.59 0.00 7,310.77

1.002013 0.00 0.00 0.00 0.00 0.00 3,679.36 5.43 0.00 9,908.66

1.002014 0.00 0.00 0.00 0.00 0.00 4,389.02 6.26 0.00 12,714.08

1.002015 0.00 0.00 0.00 0.00 0.00 5,372.53 7.51 0.00 15,822.85

1.002016 0.00 0.00 0.00 0.00 0.00 6,281.80 8.77 0.00 19,112.62

1.002017 0.00 0.00 0.00 0.00 0.00 7,018.24 9.60 0.00 22,439.82

1.002018 0.00 0.00 0.00 0.00 0.00 7,780.86 10.44 0.00 25,779.15

1.002019 0.00 0.00 0.00 0.00 0.00 8,572.32 11.27 0.00 29,109.65

1.002020 0.00 0.00 0.00 0.00 0.00 8,260.03 11.27 0.00 32,014.08

0.002021 0.00 0.00 0.00 0.00 0.00 7,645.59 10.25 0.00 34,457.74

Rem.

Total

0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 67,501.53 93.33

0.00 0.00

0.00

0.00

34,457.74

0.00 0.00

84.67 7.04

0.00

429.21 81,599.00

0.00 0.00 0.00 0.00 0.00 0.00

429.21 81,599.00 47.48 9,026.48 4,020.15 63,574.70 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Gas

0 - 0

0.00

Mcf/monthMcf/month

% year b = 0.000

0.005

0.005

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

0.12642000

0.11062000

11/30/2021

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

47,566.15 34,457.74 25,678.14

20.00% :50.00% :

19,681.89 6,589.12

PW 4,350.3870.00% :

0.00

273,750.00 814,910.00

0.00

Hud Eco Detailed.rpt 83

Page 280: Thailand Property Evaluation As of December 31, 2009 · Thailand Property Evaluation As of December 31, 2009 Gentlemen: Pursuant to your request, we have evaluated certain oil, gas,

Operator :

Case : Reserve Cat. :

Field :

Reservoir :

Co., State :

ECONOMIC PROJECTION

Probable Undeveloped

SINPHUHORM

HESSPHA NOK KHAO

BLOCK EU1/E5N, ONSHORE

As Of Date :

Discount Rate (%) : 10.00All Cases

Misc.

Revenue

(M$)

Gas

Revenue

(M$)

Oil

Revenue

(M$)

Gas

Price

($/Mcf)

Oil

Price

($/bbl)

Net

Gas

(MMcf)

Net

Oil

(Mbbl)

Gross

Gas

(MMcf)

Gross

Oil

(Mbbl)

Year

03/30/2010 11:19:40AMDate :

Project Name :

Partner :

Case Type :

Archive Set :

Cum Oil (Mbbl) :

Cum Gas (MMcf) :

0.00

0.00

COASTAL - Forecast-3P-Offshore

Coastal Net Interests

LEASE CASE

HUD110

SINPHUHORM - CNG PROB EXTENTION12/31/2009

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002010

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002011

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002012

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002013

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002014

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002015

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002016

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002017

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002018

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002019

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.002020

93.19 7.24 4.69 891.00 0.52 98.56 48.31 713.13 0.002021

94.20 7.36 51.84 9,855.00 5.73 1,090.16 540.18 8,025.40 0.002022

96.08 7.49 51.84 9,855.00 5.73 1,090.16 550.97 8,166.35 0.002023

98.01 7.62 51.98 9,882.00 5.75 1,093.15 563.54 8,332.22 0.002024

Rem

Total

Ult

Year

Net Tax

Production

(M$)

Net Tax

AdValorem

(M$)

Net

Investment

(M$)

Net

Lease Costs

(M$)

Net

Well Costs

(M$)

Annual

Cash Flow

(M$)

Cum Disc.

Cash Flow

(M$)

Other

Costs

(M$)

Well

Count

Net

Profits

(M$)

0.002010 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002011 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002012 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002013 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002014 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002015 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002016 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002017 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002018 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002019 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.002020 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

1.002021 0.00 0.00 0.00 0.00 0.00 760.43 1.02 0.00 231.19

1.002022 0.00 0.00 0.00 0.00 0.00 8,554.31 11.27 0.00 2,695.63

1.002023 0.00 0.00 0.00 0.00 0.00 8,706.05 11.27 0.00 4,966.21

1.002024 0.00 0.00 0.00 0.00 0.00 8,884.45 11.30 0.00 7,063.52

Rem.

Total

0.00 0.00 0.00 0.00 0.00 65,677.46

0.00 0.00 0.00 0.00 0.00 92,582.70 112.72

77.85 0.00

0.00

10,589.65

17,653.16

106.07 8.18

102.96 7.96

0.00

518.37 98,550.00

358.03 68,067.00 39.61 7,529.57 4,200.83 61,554.48

518.37 98,550.00 57.34 10,901.60 5,903.83 86,791.59 0.00

Major Phase :

Perfs :

Initial Rate :Abandonment :

Initial Decline :

Beg Ratio :

End Ratio :

Gas

0 - 0

0.00

Mcf/monthMcf/month

% year b = 0.000

0.005

0.005

Working Int :

Revenue Int :

Abandonment Date :

Disc. Initial Invest. (M$) :

ROInvestment (disc/undisc) :

Years to Payout :

0.12642000

0.11062000

11/26/2031

0.00 / 0.00

0.00

Internal ROR (%) :

Present Worth Profile (M$)

5.00% :10.00% :15.00% :

PWPWPWPWPW

39,946.72 17,653.16

7,983.4620.00% :50.00% :

3,690.21 52.01

PW 3.8670.00% :

0.00

821,250.00 821,250.00

0.00

Hud Eco Detailed.rpt 84