Annual Energy Outlook 2016 - Colorado State...
Transcript of Annual Energy Outlook 2016 - Colorado State...
U.S. Energy Information Administration www.eia.govIndependent Statistics & Analysis
Annual Energy Outlook 2016
ForNational Committee on Oil and Gas for Air Quality ModelingOctober 13, 2016 | conference call
ByJohn Staub, Team Lead
Oil and gas supply modeling methodology
OverviewOil and Gas Supply Model (OGSM) in the National Energy Modeling System (NEMS)
• AEO 2016 Lower 48 onshore (OLOGSS) model overview• http://www.eia.gov/forecasts/documentation/workshops/#upstream
• http://www.eia.gov/forecasts/aeo/assumptions/
• http://www.eia.gov/forecasts/aeo/nems/documentation/ogsm/pdf/m063(2014).pdf
– Resources and technology (knowns and unknowns)
– Example of sub-county level analysis in the Marcellus play
• AEO 2016 crude oil and natural gas supply projections
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National Energy Modeling System (NEMS) – Oil and Gas Supply Model (OGSM)
3John Staub, for National Oil & Gas Emissions Committee October 13, 2016
John Staub, for National Oil & Gas Emissions Committee October 13, 2016
AEO 2016 Methodology – OGSM overview and interaction with NEMS
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NEMSOGSM
Supply Functions
PMM
NGTDMGas Production Function
NEMS OGSMSupply Functions
Liquid Fuels Market Model
Natural Gas Markets ModelGas Production Function
Exogenous Input
Drilling, Price, Supply, Reserves
OGSM
Domestic Foreign
Onshore Offshore AlaskaThe new “OLOGSS”
OGSM
Domestic Foreign
Onshore Offshore AlaskaThe new “OLOGSS”
OGSM
Domestic Foreign
Onshore Offshore AlaskaThe new “OLOGSS”
OGSM
Domestic Foreign
Onshore Offshore Alaska
Oil
The new “OLOGSS”
Gas
Known Fields- Conventional- Unconventional
Undiscovered- Conventional- Unconventional
Known Fields- Conventional- Unconventional
Undiscovered- Conventional- Unconventional
OGSM
Domestic Foreign
Onshore Offshore AlaskaThe new “OLOGSS”
OGSM
Domestic Foreign
Onshore Offshore AlaskaThe new “OLOGSS”
OGSM
Domestic Foreign
Onshore Offshore AlaskaThe new “OLOGSS”
OGSM
Domestic Foreign
Onshore Offshore Alaska
Oil
The new “OLOGSS”
Gas
Known Fields- Conventional- Unconventional
Undiscovered- Conventional- Unconventional
Known Fields- Conventional- Unconventional
Undiscovered- Conventional- Unconventional
Known Fields- Conventional- Unconventional
Undiscovered- Conventional- Unconventional
Known Fields- Conventional- Unconventional
Undiscovered- Conventional- Unconventional
Lower 48 Onshore (OLOGSS)
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OLOGSS – three phases of future production• Existing production
– from currently producing oil & gas fields
• Reserves growth– ASR / EOR
– infill drilling
• Undiscovered resource
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History FutureReserves Growth
Existing Fields
Capabilities of OLOGSS• Model entire oil & gas resource in Lower 48
– Shale gas and tight oil– Tight sands– Coalbed methane– Other (a.k.a. Conventional)
• Ability to model– technology change / improvements– land access issues– legislative policy issues (royalty relief, tax credits, etc…)
• Ability to address more policy and financial issues that affect the profitability of oil and natural gas drilling than with current module
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Role of OLOGSS within NEMS• Projects future domestic oil & gas supply
– Production from existing fields/reservoirs– Reserves growth in existing fields/reservoirs– Exploration in undiscovered fields/reservoirs
• Development of resources is subject to the following constraints– Access to resource– Technology– Economics– Infrastructure
• Drilling• CO2 availability• Pipeline• Others
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OLOGSS overview
John Staub, for National Oil & Gas Emissions Committee October 13, 2016 9
Development –Production Decline Curve
Project Ranking
Reports
Input Data
Economics
Exploration – Discovery Order
Secondary/Tertiary Recovery Analysis
Aggregation
Inputs to other Models
yes
Eligible for Secondary/Tertiary?
Timing/Selection
Undiscovered Discovered
Exploration Economics
AEO 2016 Methodology – OGSM OLOGSS system logic and flow
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Master Database
Resource Description Module
Process Module
Economic/Timing Module
ReportsOther Input• Costs• Fiscal Data
Model Option Files
In NEMS
Preprocessor
Rank and Select Resources based on Constraints
• Production and Reserves• Wells – Active and Drilled• Economic results• Aggregated at:
– Play– Basin– State/Regional– National
OGSM OLOGSS preprocessor system logic and flow
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• Estimates Production Profile for Each Resource Type Based on Production Profile Functions
• Screens Technically Viable Process for Each Resource
• Compiles Raw Data to Create Input Files For Use in the Model• Check for Quality, Consistency, Completeness• Aggregate and Process Data Based on “Unit of Analysis”• Allocate Resources per OLOGSS Regions
• “Data Warehouse” - Master Database of Oil and Gas Resources in Lower 48 Onshore
– Discovered (NRG Associates, DrillingInfo, etc)– Undiscovered (USGS, MMS)– Secondary Sources (COGAM, EIA, Others)
Master Database
Resource Description Module
Process Module
Model Option Files
User defined– Resource Development Constraints– Technology Options/ Levers– Economic Options/ Levers– Resource Access Parameters
Processes modeled
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• Water flooding
• Polymer flooding
• Steam flooding
• CO2 flooding
• Infill drilling
• Profile modification
• Horizontal drilling
• Conventional/water drive
• Tight gas
• Coalbed methane
• Shale gas
Natural gasCrude oil
Primary model levers• Technology levers
– value of all levers
– implementation & market penetration curves
– interaction of technologies
• Economic levers– ROR
– Risk
• Resource access parameters
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Resource development constraints• Constraints will be used for future development of various resources
– drilling
• number of rigs
• depth rating
– capital constraints
• E&P capital
• others
– co2 availability – natural and industrial sources
– access to land – federal/state
– natural gas demand
– others to be defined
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Resources and technology– knowns and unknowns –
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1. Actively developing area in plays like the Barnett, Marcellus, etc. will be called “Tier 1” and the EUR given a 1% annual growth rate
2. Area not yet at prime time will be called “Tier 2” and the EUR given a 3% annual growth rate until development begins then converts to “Tier 1”
– Large areas of the Marcellus, Utica, etc.
– Devonian has been produced with tiny vertical wells for 100+ years
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There are two tiers of resource-technology plays which we assume will have different technology change rates
Crude Oil and Natural Gas
Resource Type Drilling CostLease Equipment & Operating Cost EUR-Tier 1 EUR-Tier 2
Tight oil -1.00% -0.50% 1.00% 3.00%Tight gas -1.00% -0.50% 1.00% 3.00%Shale gas -1.00% -0.50% 1.00% 3.00%All other -0.25% -0.25% 0.25% 0.25%
Source: U.S. Energy Information Administration, Office of Energy Analysis.
Natural gas Technically Recoverable Resources by AEO Year Trillion cubic feet
Natural gas resources plus cumulative production has exhibited an AAGR of 3.3% between AEO1990 and AEO2015, and…
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1990 2005 2015 1990 - 2015 % change
1990-2005 AAGR %
1990-2015 AAGR %
2005-2015 AAGR %
Proved Reserves 187 187 308 65% 0.0% 2.0% 5.1%Unproved Resources 1,040 1,407 1,968 89% 2.0% 2.6% 3.4%
Shale Gas 12 86 596 4685% 13.7% 16.7% 21.4%Tight Gas 354
Coalbed Methane 47 80 120 157% 3.7% 3.8% 4.1%Other 323
Conventional Unproved 691 952L-48 offshore NA 305
Alaska 291 289 271 -7% 0.0% -0.3% -0.6%
Subtotal Resources 1,228 1,594 2,277 85% 1.8% 2.5% 3.6%
Production 18 18 27 53% 0.1% 1.7% 4.2%Cumulative Production 18 298 522
TRR + Production 1,245 1,612 2,798 125% 1.7% 3.3% 5.7%
y/y Change in TRR + Production, % 3.6% 1.4%
John Staub, for National Oil & Gas Emissions Committee October 13, 2016
Example of sub-county level analysis in the Marcellus play
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John Staub, for National Oil & Gas Emissions Committee October 13, 2016
Adding geology improves EUR estimate quality, offers higher resolution
EUR: Estimated ultimate recovery per wellSource: Energy Information Administration analysis, July 2014
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County Average EUR(bcf)
Average EUR weighted by GIP tier (bcf)
ALLEGHENY 3.74 4.09
ARMSTRONG 0.91 2.72
BEAVER 2.74 2.44
BEDFORD 1.16 0.85
BLAIR 1.34 1.23
BRADFORD 5.70 3.94
BUTLER 1.74 2.72
CAMBRIA 1.46 2.43
CAMERON 0.33 2.69
County Average EUR(bcf)
Average EUR weighted by GIP tier (bcf)
SUSQUEHANNA 6.14 4.92
TIOGA 2.98 2.49
UNION 2.80 0.30
VENANGO 0.83 2.49
WARREN 1.84 2.28
WASHINGTON 2.45 3.69
WAYNE 7.49 1.34
WESTMORELAND 1.85 2.84
WYOMING 8.85 3.42
John Staub, for National Oil & Gas Emissions Committee October 13, 2016
Pennsylvania Marcellus – dry gas in the Northeast, wet gas in the Southwest
Source: Range Resources, Marcellus extent and Range Resources gas in-place outlines
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SUSQUEHANNA
WYOMING
WASHINGTON
Contour (Bcf / sq mi)
Wells
0
500
1,000
1,500
2,000
2,500
0 5 10 15 20
SUSQUEHANNA_175 (8.0)SUSQUEHANNA_150 (6.5)SUSQUEHANNA_125 (3.8)SUSQUEHANNA_100 (3.2)SUSQUEHANNA_50 (2.5)SUSQUEHANNA_75 (2.5)Marcellus avg. (AEO2015) (1.9)Marcellus avg. (AEO2012) (1.6)
Dry natural gas production from average well over 20 yearsmillion cubic feet per year
Susquehanna, PA EURs by vintagebillion cubic feet
John Staub, for National Oil & Gas Emissions Committee October 13, 2016
Two additional years of data show increase in productivity of wells, and sub-county detail captures economic drivers
Source: EIA, Annual Energy Outlook 2015
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1
EUR (Bcf/well)
John Staub, for National Oil & Gas Emissions Committee October 13, 2016
Assumption to the Annual Energy Outlook 2016
continued…
Source: http://www.eia.gov/forecasts/aeo/assumptions/pdf/oilgas.pdf
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Bradford-Venango-Elk 18,128 8.1 0.003 0.063 0.5 9.2 0.0
Clinton-Medina-Tuscarora 26,549 8.0 0.002 0.118 0.4 25.0 0.0
Devonian 51,387 6.3 0.000 0.101 0.1 32.6 0.9
Marcellus Foldbelt 869 4.3 0.000 0.168 0.0 0.6 0.0
Marcellus Interior 25,200 4.3 0.007 1.934 0.8 209.4 11.6
Marcellus Western 2,688 5.5 0.000 0.287 0.0 4.2 0.2
Utica-Gas Zone Core 12,988 5.0 0.005 2.263 0.3 146.9 3.8
Utica-Gas Zone Extension 20,019 3.0 0.006 0.624 0.3 37.6 1.8
Utica-Oil Zone Core 2,161 5.0 0.062 0.109 0.7 1.2 0.0
Utica-Oil Zone Extension 7,389 3.0 0.031 0.129 0.7 2.9 0.0Illinois New Albany 3,058 8.0 0.000 0.117 0.0 2.9 0.2
Antrim Shale 13,177 8.0 0.000 0.106 0.0 11.1 0.9
Berea Sand 7,473 8.0 0.000 0.105 0.0 6.3 0.1
Appalachian
Michigan
Table 9.3 Unproved Technically Recoverable Tight/Shale Oil and Gas Resources b
Region Basin Play
Area with Potential1
(mi2)
Average Well Spacing
(wells/mi2)
Average EUR
Crude Oil2
(MMbls/well)Natural Gas
(Bcf/well)Natural Gas
(Tcf)
Technically Recoverable Resources
NGPL (Bbls)
1-East
Crude Oil (Bbls)
Oil price assumptions
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Brent crude oil spot price2015 dollars per barrel
John Staub, for National Oil & Gas Emissions Committee October 13, 2016
Near-term crude oil price scenario is lower in AEO2016
Source: EIA, Annual Energy Outlook 2016 Reference case and Annual Energy Outlook 2015 Reference case
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0
50
100
150
200
250
1990 1995 2000 2005 2010 2015 2020 2025 2030 2035 2040
History Projections2015
AEO2015 Reference
AEO2016 Reference
Low Oil Price
High Oil Price
AEO 2016 Results
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0
5
10
15
20
1990 2000 2010 2020 2030 2040 2020 2030 2040 2020 2030 2040
Projections
U.S. crude oil productionmillion barrels per day
John Staub, for National Oil & Gas Emissions Committee October 13, 2016
U.S. crude oil production rises above previous historical high before 2030; alternative price and resource/technology cases can differ
Source: EIA, Annual Energy Outlook 2016
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Tight oil
Alaska
Lower 48 offshore
History2015 2015 2015
U.S. maximum production level of9.6 million barrels per day in 1970
Other lower 48 onshore
Reference
Reference
Low Oil and Gas Resourceand Technology
Low Oil Price
High Oil and GasResource andTechnology
High Oil Price
High Oil and Gas Resource and TechnologyProjections Projections
0
20
40
60
80
100
120
140
160
0
10
20
30
40
50
60
1990 2000 2010 2020 2030 20400
10
20
30
40
50
60
2015 2020 2025 2030 2035 2040
U.S. dry natural gas productiontrillion cubic feet
U.S. dry natural gas productiontrillion cubic feet
John Staub, for National Oil & Gas Emissions Committee October 13, 2016
U.S. natural gas production dominated by shale resources; alternative price and resource /technology assumptions could be quite different
Source: EIA, Annual Energy Outlook 2016
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billion cubic feet per day
Low Oil and Gas Resource and Technology
Low Oil Price
High Oil and Gas Resource and Technology
High Oil Price2016 Reference
2015 Reference
Tight gasCoalbed methane
Other lower 48
Shale gas andtight oil plays
AlaskaLower 48 offshore
History Projections Projections2015
Alaskaonshore
0
1
2
3
4
5
6
7
8
9
1990 2000 2010 2020 2030 20400
5
10
15
20
25
30
1990 2000 2010 2020 2030 2040
energy spot prices under Reference case2015 dollars per million Btu Oil-to-gas price ratio
The price relationship between crude oil and natural gas impacts producer economics and production levels for both commodities
Source: EIA, Annual Energy Outlook 2016
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2015
Henry Hub spot price
Brent crude oilspot price
High Oil Price
Low Oil Price
Reference
2015History Projections
High Oil and Gas Resourceand Technology
Low Oil and GasResource and Technology
History Projections
John Staub, for National Oil & Gas Emissions Committee October 13, 2016
0
2
4
6
8
10
2000 2005 2010 2015 2020 2025 2030 2035 2040
average Henry Hub spot prices for natural gas2015 dollars per million Btu
Future domestic natural gas prices depend on both domestic resource availability and world energy prices
Source: EIA, Annual Energy Outlook 2016
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History Projections2015
Reference
Low Oil and GasResource/Technology
Low Oil Price
High Oil and Gas Resource/Technology
High Oil Price
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-8
-4
0
4
8
12
16
2000 2010 2020 2030 2040 2020 2030 2040 2020 2030 2040
Projections Projections Projections
U.S. natural gas imports and exportstrillion cubic feet billion cubic feet per day
John Staub, for National Oil & Gas Emissions Committee October 13, 2016
Projected U.S. natural gas exports reflect the spread between domestic natural gas prices and world energy prices
Source: EIA, Annual Energy Outlook 2016
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LNG imports
History2015 2015
402015 Low Oil Price
Pipeline exports to Mexico
Pipeline exports to Canada Pipeline imports from Canada
Alaska LNG exports
30
20
10
0
-10
-20
High Oil and Gas Resource and Technology
Lower 48 states LNG exports
Reference
For more informationU.S. Energy Information Administration home page | www.eia.gov
Annual Energy Outlook | www.eia.gov/aeo
Short-Term Energy Outlook | www.eia.gov/steo
International Energy Outlook | www.eia.gov/ieo
Monthly Energy Review | www.eia.gov/mer
Today in Energy | www.eia.gov/todayinenergy
State Energy Profiles | www.eia.gov/state
Drilling Productivity Report | www.eia.gov/petroleum/drilling/
International Energy Portal | www.eia.gov/beta/international/?src=home-b1
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Supplemental Slides
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John Staub, for National Oil & Gas Emissions Committee October 13, 2016
Maps of shale and tight formations
Source: http://www.eia.gov/maps/maps.htm Drilling Productivity Report http://www.eia.gov/petroleum/drilling/
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0
10
20
30
40
50
60
70
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
2002 2004 2006 2008 2010 2012 2014 2016
Rest of US gas productionMarcellus (PA, WV, OH & NY)Haynesville (LA & TX)Eagle Ford (TX)Fayetteville (AR)Barnett (TX)Woodford (OK)Bakken (ND)Antrim (MI, IN, & OH)Utica (OH, PA & WV)Other US 'shale'Shale gas % of total
Shale gas production as a percent of total gas production
Natural gas production (dry)billion cubic feet per day
Estimated U.S. shale gas production was 41.9 Bcf/d in August 2016 about 57% of total U.S. dry production (73.9 Bcf/d)
Sources: EIA Natural Gas Monthly, STEO through August 2016 and DrillingInfo. http://www.eia.gov/energy_in_brief/article/shale_in_the_united_states.cfm
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0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0
1
2
3
4
5
6
7
8
9
2002 2004 2006 2008 2010 2012 2014 2016
Rest of U.S. Oil ProductionEagle Ford (TX)Bakken (MT & ND)Spraberry (TX & NM Permian)Bonespring (TX & NM Permian)Delaware (TX & NM Permian)Yeso-Glorieta (TX & NM Permian)Niobrara-Codell (CO, WY)HaynesvilleUtica (OH, PA & WV)Marcellus (PA, WV, OH & NY)Woodford (OK)Granite Wash (OK & TX)Austin Chalk (LA & TX)Monterey (CA)Tight oil % of total
Tight oil productionmillion barrels of oil per day
Tight oil production as apercent of total oil production
Estimated U.S. tight oil production was 3.9 MMb/d in August 2016 about 47% of total U.S. oil production (8.5 MMb/d)
Sources: EIA derived from state administrative data collected by DrillingInfo Inc. Data are through August 2016 and represent EIA’s official tight oil estimates, but are not survey data. State abbreviations indicate primary state(s).
35John Staub, for National Oil & Gas Emissions Committee October 13, 2016
Offshore and Alaska
36John Staub, for National Oil & Gas Emissions Committee October 13, 2016
AEO 2016 Methodology – Lower 48 offshore OOGSS• Offshore crude oil and natural gas resources are divided into three
categories:– Undiscovered
– Discovered, undeveloped (i.e., announced discoveries)
– Producing
• Resource and economic calculations performed at an evaluation unit level– Evaluation unit is defined as an area within a planning area (e.g., Western Gulf of Mexico,
Eastern Gulf of Mexico, Central Gulf of Mexico, Pacific, and Atlantic) that falls into a specific water depth category
• Supply curves are generated for three offshore regions: Pacific, Atlantic, and Gulf of Mexico
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AEO 2016 Methodology – Alaska Oil and Gas Supply Model flowchart
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Estimate transportation costs
NEW FIELDS Determine DCF for next discovery size
False: No new fields added and move to development projects
True
For each period t: Economic & Physical Data
Determine outcome for allowable number of New Field WildcatsAdd any successes to inventory of development projectsRecord
- Drilling- Reserve additions
- Financial expenditures
DCF > 0
Compute DCF for project
Add project to producing fields
For all fields, compute production (PROD)
Record production
PRODUCING FIELDS
Shut down, remove field
Go to next project
False
False
False
False
True
True
True
True
DEVELOPMENTPROJECTS
All projects evaluated
Continue project, record- Drilling- Financial expenditures
PROD>QMIN
Project complete
DCF > 0 Suspend operation
Lower 48 offshore announced discoveries
39John Staub, for National Oil & Gas Emissions Committee October 13, 2016
Field name Field nickname
Water Depth (Feet)
Year of Discovery
Start Year of
Production
Resource size
(MMBoe)
AC865 GOTCHA 7844 2006 2019 80DC353 VICKSBURG 7457 2009 2019 325
GB427CARDAMOM
DEEP 2720 2009 2015 182
GB506 BUSHWOOD 2700 2009 2019 65GC432 SAMURAI 3400 2009 2017 60
GC468STAMPEDE-
PONY 3497 2006 2018 372
GC512
STAMPEDE-KNOTTY
HEAD 3557 2005 2018 372
GC903 HEIDELBERG 5271 2009 2016 400KC102 TIBER 4132 2009 2017 692KC292 KASKIDA 5894 2006 2020 691KC736 MOCCASIN 6759 2011 2021 350KC872 BUCKSKIN 6978 2009 2018 200
Field name
Field nickname Water Depth (Feet)
Year of Discovery
Start Year of
Production
Resource size
(MMBoe)
KC919 HADRIAN NORTH 7000 2010 2020 372
KC964 HADRIAN SOUTH 7983 2009 2015 182LL370 DIAMOND 9975 2008 2018 75
LL400 CHEYENNE EAST 9187 2011 2020 12MC199 MANDY 2478 2010 2020 20
MC392 APPOMATTOX 7290 2009 2017 325
MC762 DEIMOS SOUTH 3122 2010 2015 75MC771 KODIAK 5006 2008 2018 182
MC792 WEST BOREAS 3094 2009 2015 182MC984 VITO 4038 2009 2020 365SM217 FLATROCK 10 2007 2017 200MC768 KAIKIAS 4575 2014 2024 100WR029 BIG FOOT 5235 2006 2018 200
Lower 48 offshore announced discoveries (cont.)
40John Staub, for National Oil & Gas Emissions Committee October 13, 2016
Field name
Field nickname Water Depth (Feet)
Year of Discovery
Start Year of
Production
Resource size
(MMBoe)
WR052 SHENANDOAH 5750 2009 2017 182
WR508 STONES 9556 2005 2018 250
WR627 JULIA 7087 2007 2018 600
MC948 GUNFLINT 6138 2008 2016 90
KC093 GILA 4900 2013 2017 692
MC782 DANTZLER 6580 2013 2017 75
MC698 BIG BEND 7273 2012 2020 65
MC026 AMETHYST 1200 2014 2017 60
MC525 RYDBERG 7500 2014 2019 100
AC815 SILVERTIP 9280 2004 2015 89
MC300 MARMALARD 6148 2012 2015 60
MC431 SON OF BLUTO 2 6461 2012 2017 100
Field name
Field nickname Water Depth (Feet)
Year of Discovery
Start Year of
Production
Resource size
(MMBoe)
GB959 NORTH PLATTE 4400 2012 2022 693GC823 PARMER 3821 2012 2022 44SE039 PHOBOS 8500 2013 2018 100
WR095YUCATAN
NORTH 5860 2013 2020 90
MC126
HORN MOUNTAIN
DEEP 5400 2015 2017 90GC807 ANCHOR 5183 2015 2025 1392
KC010 GUADALUPE 4000 2014 2024 450GC040 KATMAI 2100 2014 2024 100WR160 YETI 5895 2015 2025 175
DC398 GETTYSBURG 5000 2014 2024 100MC079 OTIS 3800 2014 2018 44KC642 LEON 1865 2014 2024 357
GC643HOLSTEIN
DEEP 4326 2014 2016 250
Representation of offshore Gulf of Mexico production profiles for announced discoveries
41John Staub, for National Oil & Gas Emissions Committee October 13, 2016
Time
Rat
e
Start year of production
Ramp-up period: 3 years
Peak production period: Until a specified fraction of resource has been produced
Decline period
Crude oil Technically Recoverable Resources by AEO Year billion barrels
Oil has exhibited a nearly identical AAGR of 3.2%. This is a combination of discoveries and technology advancement.
Note: AEO1990 values highlighted in yellow are AEO2000 values as place holder estimates.
42John Staub, for National Oil & Gas Emissions Committee October 13, 2016
1990 2005 2015 1990 - 2015 % change
1990-2005 AAGR %
1990-2015 AAGR %
2005-2015 AAGR %
Proved Reserves 27 22 33 24% -1.3% 0.9% 4.3%Unproved Resources 116 119 226 95% 0.2% 2.7% 6.7%
Unproved Other L48 Onshore 71 56 67
Unproved L48 Offshore (1) 34 39 48 39% 0.8% 1.3% 2.1%
Unproved Alaska 11 24 34 223% 5.7% 4.8% 3.4%
Unproved Tight Oil (reclassified from onshore)
Unproved Tight Oil (2) 78
Subtotal Resources 143 141 260 82% -0.1% 2.4% 6.3%
Production 2.7 1.9 3.4 28% -2.3% 1.0% 6.2%Cumulative Production 3 37 60
TRR + Production 145 177 320 120% 1.3% 3.2% 6.1%
Change in TRR + Production, % -5.2% 7.8%