LONDON, OCTOBER 2007

2

39,710100Loma CortaderalNeuquenArgentina35,954100Cerro Dona JuanaNeuquenArgentina190,000100Del MosquitoAustralArgentina440,000100FellAustralChile

Area (Acres)

WorkingInterest (%)

BlockBasinCountry

4 blocks (3 Argentina, 1 Chile) 705,664 acres under licence100% working interestsOperatorship of all 4 blocksRisk-balanced opportunities (production, development, exploration projects)

Overview: Assets = Acreage + Reserves + Production

SOUTH AMERICA

ARGENTINA

PRODUCTIVE BASINS

GEOPARK BLOCKS

NEUQUEN

DEL MOSQUITO

COMODORO

SANTIAGOMENDOZA

SALTA

BUENOS AIRES

CHILE

FELL BLOCK

LOMA CORTADERAL

CERRO D. JUANA

BLOCK (Arg)

BLOCK (Arg)

RIVADAVIA

REFERENCES

1

12

20

1

12

Te-3

Te-2

Te-1

T-8

T-5T-4

T-3

Sa-1

SN-3

SN-2

SN-1S-2

S-1

PS-1

11PL-10BPL-10A

PL-10

PL-9

PL-8

PL-7PL-6

PL-5

PL-4

PL-3

PL-2

PL-1A

O-1

OK-1

NS-1

NO-2

NO-1 N-4

N-3

N-2

N-1

Mur-1

MunO-1 Mun-3

Mun-2

Mun-1

E MAO-1

MA-31

30

29

2827

26

MA-25

23MA-22MA-21

MA-19

18

MA-17

MA-16

MA-15

MA-14MA-13

MA-12MA-11

MA-10

MA-9

MA-8MA-7

MA-6

MA-5MA-4

MA-3

MA-2MA-1

Mol-7

Mol-6Mol-5

Mol-4 Mol-3

Mol-2Mol-1

Mog-1

MN-2MN-1

KAN-5

KAN-4

KAN-3

KAN-2

KAN-1

KA-3

KA-2AKA-2

KA-1

Gu-2

Gu-1

E-3E-2

E-1

DorN-1

Dor-3

DO-2

D-14

D-13

D-11

D-10

D-9

D-8D-7

D-6

D-5

D-3

D-2D-1

COZ-1ACOZ-1

CH-1

PDO-2

PDO-1

PDN-3PDN-2APDN-2

PDN-1

PD-11

PD-10

PD-8

PD-7

PD-6

PD-5

PD-4

PD-3PD-2PD-1

Me-2Me-1

F-1

Dir-1

CN-3

CN-2

CN-1

F-2

M-1

Fell-2

DO-3

DO-1BN-2

BN-1A

D-4

Fell-1

BN-3

Mol-7 Bis

D-A

D-B

MA-5BIS

MA-11BIS

PL-4BIS

PL-9BIS

PL-1

T-8

T-7

T-2

T-1

CG-1

T-6AT-6

24

O-1001

MA-1001MA-1002

PDN-1001

SN-1001

10 km10 km C.VIRGENES

4 2714

32

LV.x-1

DL-4

DMN.a-2

DMN.x-1

33

8

LDM.x-2

ZP.x-1

SG-1

LDMS.x-1

DL-3

DL-1

9

7

5

31

30

DM.x-3

2925

24

2322

21

20

19

18 171615

13

12

11

10

DM.x-1

3 2

CNo.x-1

CF.x-1

DMN.a-3

EE

BLOCK (Arg)

10 km

ACh.x-1 23

CDJ.x-1

CLP.x-1

ABM.x-1

LoC.x-1

PMy.x-1

(Chile)

500 km

A T L A N T I C O C E A N

P A C I F I C O C E A N

10 km

10 km

10 km

80% in Chile / 20% in Argentina 35% Oil / 65% Gas

Blocks: Reserves:

Oil and Gas Production:

0

200

400

600

800

1000

1200

1400

1600

2ºSem2005

1ºSem2006

2ºSem2006

1ºSem2007

BO

EPD

H22005

H12006

H22006

H12007

3

Overview: Capabilities = People + Tools + Capital

Santiago Norte Plant

Pampa Larga Plant

Kimiri Aike Dew Point Plant

Quintana Rig 09

Southern Cross Rig 02

Southern Cross Rig 01

Experienced and Successful Team:

Funding Sources:

Infrastructure and Rigs:

Techint, McKee, San Jorge, Chevron22EngineerMiguel Mallo (56)

ENAP, Weatherford, Schlumberger, Halliburton25EngineerGuido Jimenez (57)

Chevron8EngineerFederico Resio (30)

San Jorge, Chevron10EngineerAugusto Zubillaga (36)

YPF, Pluspetrol29EngineerRicardo Saldano (55)

Repsol YPF, San Jorge, Chevron16GeologistMario Outon (44)

Baker Huges, YPF, San Jorge, Chevron16GeologistPablo Berri (44)

YPF, San Jorge, Chevron19GeophysicistGuillermo Rossi PhD (46)

YPF, San Jorge, Chevron25EngineerJuan Carlos Ferrero (45)

YPF, San Jorge, Chevron25GeologistSalvador Minitti (52)

Total, Pan American (BP), Wintershall19GeophysicistMario Vila PhD (47)

YPF, ARCO, Lagoven, San Jorge, Chevron20GeophysicistMaria Ester Lara PhD (50)

YPF, Tecpetrol, San Jorge, Chevron28GeologistCarlos Murut (50)

ENAP, Halliburton28EngineerIvan Hidalgo (52)

YPF, San Jorge, Chevron26GeologistCarlos Gulisano PhD (55)

BJ Services, San Jorge, Chevron26EngineerGustavo Henderson (50)

YPF, Schlumberger, San Jorge, Chevron25GeologistGerardo Hinterwimmer (50)

Previous CompaniesYearsExperience

ProfessionName (Age)

4

Overview: Opportunities = Potential + Market + Acquisitions

A R G E N T I N AA R G E N T I N A

C H I L EC H I L E

METHANEX PLANT

FELL BLOCK

DEL MOSQUITO

BLOCK

Growth from Existing Blocks:• Development of P1, P2 and P3 Reserves (57 million boe)• Development and exploration of Contingent Resources (48 million boe)• 50+ prospects delineated from 3D seismic

Strategic Market Position: Regional Consolidator:

5

0.00

50.00

100.00

150.00

200.00

250.00

300.00

350.00

400.00

450.00

500.00

16-M

ay-0

607

-Jun-

0630

-Jun-

0621

-Jul-0

611

-Ago

-06

04-S

ep-0

625

-Sep

-06

16-O

ct-06

06-N

ov-0

627

-Nov

-06

18-D

ic-06

12-E

ne-0

702

-Feb

-07

23-F

eb-0

716

-Mar-

0711

-Abr

-07

02-M

ay-0

724

-May

-07

15-Ju

n-07

06-Ju

l-07

27-Ju

l-07

17-A

go-0

707

-Sep

-07

0.000

500.000

1000.000

1500.000

2000.000

2500.000

3000.000

GeoPark Clos ing Price Volume

GPK - HISTORICAL PRICES FROM 16 MAY 2006 TO 10 SEPTEMBER 2007

Volu

me

(in T

hous

and

of s

hare

s)

Reb

ased

Clo

sing

Pric

e (

GBX

)

16 August: 1,475,488

01 June: 2,660,000

19 April: 1,512,973

Overview: LSE / AIM Performance

GPK Vs. Oil & Gas AIM Sector and FTSE AIM All-Share

Comparison from 16 May 2006 to 10 September 2007

200

250

300

350

400

450

May

-06

Jun-

06

Jul-0

6

Ago

-06

Sep

-06

Oct

-06

Nov

-06

Dic

-06

Ene

-07

Feb

-07

Mar

-07

Abr

-07

May

-07

Jun-

07

Jul-0

7

Ago

-07

Sha

re P

rice

(p

Geopark plc FTSE All Share FTSE AIM Oil & Gas

• Shares outstanding at 30 June 2007: 30,685,860

• Fully diluted shares outstanding at 30 June 2007: 32,858,096

• Trading volume (shares per day): 42,083 (since IPO) / 71,833 (YTD)

• Market capitalization (21 September 2007): GBP 128.9 million

6

2007 Third Quarter Update: Key Messages

• Solid financial results in First Half 2007

• Three rigs now in operation -- with 30 well drilling programme planned for 2007- 2008 period

• Significant additions to infrastructure have created a platform for future production growth and rapid commercialization of production

• On track to meet year-end production target of 4,000 boepd

• Prospect inventory has increased following 3D seismic interpretation – positive implications for reserves

• Methanex Alliance: substantially de-risks activities on the Fell Block in Chile

• GEOPARK expects to be able to double its production in 2008

7

Production: +92% YOY– from 632 boepd to 1,216 boepd– delays in production start-up due to late

arrival of drilling rig in Chile

Revenues: +72% YOY– higher gas prices + 54%

Gross Profit: +75% YOY

CAPEX: US$ 11.1 MM

Net Loss: US$ 4.6 MM– includes write-off from 3 workovers (US$ 0.9

MM)– includes charge related to employee

incentive programme (US$ 2.0 MM)

Amounts in US$ ´ 000

Six-months period ended

30 June, 2007

Six-months period ended

30 June, 2006

Year ended December

31, 2006

NET REVENUE 4,582 2,665 6,008

Production costs (2,970) (1,746) (4,025)

GROSS PROFIT 1,612 919 1,983

Other operat ing income 160 - 68

Explorat ion costs (1,659) (815) (1,751)

Selling and administrat ive expenses (4,620) (3,953) (9,145)

OPERATING LOSS (4,507) (3,849) (8,845) Financial income 909 1,071 1,687 Financial expenses (981) (4,061) (4,175)

LOSS BEFORE TAX (4,579) (6,839) (11,333) Tax on loss - (2) (16)

LOSS FOR THE YEAR / PERIOD (4,579) (6,841) (11,349)

First Half Results: Solid Progress

8

US$ 20 MM in borrowings from a 6 year loan facility from the IFC

Available cash and facilities at 30 June 2007: US$ 20.4 MM

Total Capitalization Ratio of 62% at 30 June 2007

ASSETS (Amounts in US$ ´ 000)

Six-months period ended

June 30, 2007

Six-months period ended

June 30, 2006

Year ended December

31, 2006 EQUITY AND LIABILITIES (Amount in USD)

Six-months period ended

June 30, 2007

Six-months period ended

June 30, 2006

Year ended December

31, 2006

Intangible assets and PP&E 31,457 9,673 21,711 Share capital and share premium 52,727 52,626 52,626

Other non current assets 2,207 1,360 3,496 Reserve and others 3,123 2,949 3,082

NON CURRENT ASSETS 33,664 11,033 25,207 Retained earnings (17,194) (12,021) (14,601)

EQUITY 38,656 43,554 41,107

Other current assets 8,814 1,806 2,863 Borrow ings (Non Current) 17,639 70 16,598

Cash and cash equivalents 20,380 32,813 34,194 Borrow ings (Current) 2,770 -

CURRENT ASSETS 29,194 34,619 37,057 Other current liabilit ies 3,793 2,028 4,559

LIABILITIES 24,202 2,098 21,157

ASSETS 62,858 45,652 62,264 EQUITY AND LIABILITIES 62,858 45,652 62,264

First Half Results: Strengthened Balance Sheet

9

Operational Highlights: Creating a Platform for Growth

Infrastructure Expansion– Kimiri Aike Gas Production Facility (“Dew Point Plant”) constructed during first half and

commissioned in September 2007

– Current capacity 24 mmcfd

– Additional compressor to increase capacity to 35 mmcfd by 1Q08

– 16 Km of new pipelines constructed in Chile to tie-in new gas producing wells

3D Seismic Programme– 472 square kilometers (US$ 7 million) on the Fell Block

– Completed in Q107 and currently undergoing final interpretation

– Expansion of prospect inventory

Commencement of Drilling Programme– 3 rigs operating in Chile and Argentina

– 4 wells completed on time and below budget Chile • Pampa Larga 12 Tested 3.1 mmcfd of gas, being hooked-up to plant (October 07) • Santiago Norte 4 Completed and cased, waiting for frac (October 07) • San Miguel 1 Completed and cased, currently testing • Pampa 1 Now drilling Argentina • Zanja Dinero 1 Abandoned • Campo Leandro 1 To spud in October 07

10

Production: On Track to Meet 2007 Exit Rate of 4000 BOEPD

0

500

1000

1500

2000

2500

3000

3500

4000

4500

5000

Sep-07 Oct-07 Nov-07 Dec-07

Base Argentina Base Chile Tested wells Drilled wells New wells

Year- end Production TargetB

OE

PD

11

Fell Block: Opportunity Inventory

A R

G E

N T

I N

A

A T

L A

N T

I C

O C

E A

N

P A

C I

F I C

O

C E

A N

FELL BLOCK

AUSTRALBASIN

C H

I L

E

LOCATION MAP

A R

G E

N T

I N

A

C H

I L

E

AU-CHI-60( Jul 07 )

EstanciaBrazo Norte

LagunaAna

EstanciaBrazo Norte

LagunaAna

D-4

Bahía Posesión

Cañadon Grande

Condor

Condor Oeste

Tandy

Bahía Munición Municion

Okerer Aike

Punta Tandy

Molino

Chulengo

Meric

PD Norte

PD EstePD Oeste

Bahía Dirección

Bahía Santiago

Punta Barrosa

Faro Satelite

Espora

Picton

Angostura

Manantiales

Ang. Este

Ang. Sur

Manantiales Este

Monte Aymond

Fell

Ciaike

San Jorge

Tumbero

Dirección

Faro Este

Pta. Satelite

Punta Anegada

Punta

Caleta Municìones

Faro Cerro Direcciòn

Faro Punta Anegada

Paso El Condor

Santiago

Amadeo

Seccion Dicky

Pto. Municiòn

Lagunade Los Tabanos

Dorado

Línea Arbitraria

Delgada Este

Co Negro

Monte Aymond O.

PARQUE NACIONALPALI AIKE

PL.a-12

PLE.x-1

Bahía Posesión

Cañadon Grande

Condor

Condor Oeste

Tandy

Bahía Munición Municion

Okerer Aike

Punta Tandy

Molino

Codorniz

Chulengo

Meric

PD Norte

PD EstePD Oeste

Bahía Dirección

Bahía Santiago

Punta Barrosa

Faro Satelite

Espora

Picton

Angostura

Manantiales

Ang. Este

Ang. Sur

Manantiales Este

Monte Aymond

Fell

Ciaike

San Jorge

Tumbero

Dirección

Faro Este

Pta. Satelite

Punta Anegada

Punta

Caleta Municìones

Faro Cerro Direcciòn

Faro Punta Anegada

Paso El Condor

Santiago

Amadeo

Seccion Dicky

Pto. Municiòn

Lagunade Los Tabanos

Dorado

Línea Arbitraria

Delgada Este

Co Negro

Monte Aymond O.

Kimiri Aike NorteKimiri Aike Norte

San MiguelSM.x-1

Puesto RangerPR.x-1

Bump HillBH.x-1

Cerro SutlejCoS.x-1

Ni.a-5

20

4

25

5 6

21

714

1319 2427

3122

1718201541

29

363551012

2

23

23037

13234

7

1

1

1

2

4 36

535

1

645

32

12

1

Te-3

Te-2

Te-1

T-5T-4

T-3

SN-3

SN-2

SN-1

S-2

S-1

PS-1

11PL-10BPL-10APL-10

PL-9

PL-7

PL-6PL-4

PL-3

PL-2

PL-1A

O-1

NO-2

N-4

N-3

N-2

N-1

Mur-1

MunO-1Mun-3

Mun-2

Mun-1

MAO-1

MA-31

302928

27

26

MA-25

23

MA-22

MA-19

18MA-17

MA-16

MA-15

MA-14

MA-13

MA-12MA-11

MA-10

MA-9

MA-8

MA-7

MA-6

MA-5MA-4

MA-3

MA-2

MA-1

Mol-7

Mol-6 Mol-5Mol-4 Mol-3

Mol-2 Mol-1

Mog-1

MN-2MN-1

KAS-3

R KAS-2

KAS-1

KAN-5

KAN-4

KAN-3

KAN-1

KA-2AKA-2

Gu-2

Gu-1

FE-29

FE-13

FE-12

E-3

E-2

E-1

DorS-1-1A

DorN-1

Dor-4

Dor-3

Dor-2

DO-2

D-14

D-13

D-11

D-10

D-9

D-8

D-7D-6

D-5

D-3

D-2

D-1

COZ-1ACOZ-1

CH-1

Am-1

PDO-2

PDO-1

PDN-3PDN-2A

PDN-2

PDN-1

E PDE-38

37

36

35

34

33

32

31

30

29

28

27E PDE-26

25

24

24

E PDE-23E PDE-23

22

1818

17 1616

15

E PDE-14

13

E PDE-12

10E PDE-10

98

7B7A

E PDE-7

6E PDE-5

4

32

E PDE-1

PD-11

PD-10

PD-9

PD-8

PD-7

PD-6

PD-5

PD-4

PD-3PD-2PD-1

Me-2

Me-1

FE-28

FE-27

FE-26FE-25

FE-24FE-23

FE-22

21

FE-20

FE-19

18A18

FE-17

FE-16AFE-16

FE-15A

FE-15

FE-14FE-11

FE-10

FE-9FE-8

FE-7FE-6FE-5

FE-4

FE-3FE-2FE-1

F-1

11Dir-11

10ADir-10

98 7

Dir-6

5

Dir-4

Dir-3

Dir-2Dir-1

CN-3

CN-2

CN-1

F-2

M-1

Fell-2

DO-3

DO-1

Ci-1

BN-2

BN-1AFell-1

BN-3

MA-5BIS

MA-11BIS

PL-1

Dor-1

T-8

T-7

T-2

T-1

CO-1

C-9

CG-1

T-6A T-6

24

MA-1001

Ci-2

21

PL-5

PL-8

SJ-2

SJ-1

Tu-1

Sau-1

NO-1

NS-1

KAN-2

KA-1KA-3

DorS-9DorS-10

8

DorS-7

CO-6

7

8

CLi.e-3

HT.x-2

HT.x-1

ARG.MAy-2

CLi.e-1

CLi.e-2

CLi.e-4

ARG.MAy-3

ARG.MAy-4

ARG.MAy-1

OK-1

SNN.a-4

MARTIN

BRAZONORTE

TETERA

DICKY

DICKY O.

SANTIAGONORTE

ESCORIAL

TANDY

MTE. AY ORIENTAL

MTE. AY. NUEVO

GUANACO

MUNICION O.

MATA NEGRA

MOGOTE

MURTILLAD. NORTE

FARO

PUNTADELGADA

MOLINO

NIKAOVEJERO

K.AIKE

10 km

A R G E N T I N A

S T R A I T

O F

M A G A L L A N E S

M.A. ESTRATIGRAFICOP. LARGA

SAUCE

TUMBEROESTE

K.AIKESUR

DORADOSUR (Sp)

DORADOSUR (Tc)

C H I L E

L

B

P

L

G

G

G

P

L

LEGEND

LIMITE 3D 2006-2007

PROVEN OIL

PROBABLE OIL

POSSIBLE OIL

PROVEN GAS

PROBABLE GAS

POSSIBLE GAS

PROSPECT / LEAD

BOLD HIGH LEAD

EXISTING 3D

SEISMIC

2006-07 3D SEISMIC

FELL BLOCK

NATIONAL PARK

12

Fell Block: Drilling Program 2007-2008

DICKY

SANTIAGONORTE

MONTEAYMOND

PUNTADELGADA

MOLINO

NIKA

OVEJERO

KIMIRIAIKE

A R G E N T I N A

E S T R E C H O

D E

M A G A L L A N E S

PAMPALARGA

C H I L E

20

4

25

5 6

21

714

1319 2427

3122

1718201541

29

363551012

2

23

23037

13234

7

1

1

1

2

4 36

535

1

645

32

12

1

Te-3

Te-2

Te-1

T-5T-4

T-3

SN-3

SN-2

SN-1

S-2

S-1

PS-1

11PL-10BPL-10APL-10

PL-9

PL-7

PL-6PL-4

PL-3

PL-2

PL-1A

O-1

NO-2

N-4

N-3

N-2

N-1

Mur-1

MunO-1Mun-3

Mun-2

Mun-1

MAO-1

MA-31

302928

27

26

MA-25

23

MA-22

MA-19

18MA-17

MA-16

MA-15

MA-14

MA-13

MA-12MA-11

MA-10

MA-9

MA-8

MA-7

MA-6

MA-5MA-4

MA-3

MA-2

MA-1

Mol-7

Mol-6 Mol-5Mol-4 Mol-3

Mol-2 Mol-1

Mog-1

MN-2MN-1

KAS-3

R KAS-2

KAS-1

KAN-5

KAN-4

KAN-3

KAN-1

KA-2AKA-2

Gu-2

Gu-1

FE-29

FE-13

FE-12

E-3

E-2

E-1

DorS-1-1A

DorN-1

Dor-4

Dor-3

Dor-2

DO-2

D-14

D-13

D-11

D-10

D-9

D-8

D-7D-6

D-5

D-3

D-2

D-1

COZ-1ACOZ-1

CH-1

Am-1

PDO-2

PDO-1

PDN-3PDN-2A

PDN-2

PDN-1

E PDE-38

37

36

35

34

33

32

31

30

29

28

27E PDE-26

25

24

24

E PDE-23E PDE-23

22

1818

17 1616

15

E PDE-14

13

E PDE-12

10E PDE-10

98

7B7A

E PDE-7

6E PDE-5

4

32

E PDE-1

PD-11

PD-10

PD-9

PD-8

PD-7

PD-6

PD-5

PD-4

PD-3PD-2PD-1

Me-2

Me-1

FE-28

FE-27

FE-26FE-25

FE-24FE-23

FE-22

21

FE-20

FE-19

18A18

FE-17

FE-16AFE-16

FE-15A

FE-15

FE-14FE-11

FE-10

FE-9FE-8

FE-7FE-6FE-5

FE-4

FE-3FE-2FE-1

F-1

11Dir-11

10ADir-10

98 7

Dir-6

5

Dir-4

Dir-3

Dir-2Dir-1

CN-3

CN-2

CN-1

F-2

M-1

Fell-2

DO-3

DO-1

Ci-1

BN-2

BN-1A

D-4

Fell-1

BN-3

MA-5BIS

MA-11BIS

PL-1

Dor-1

T-8

T-7

T-2

T-1

CO-1

C-9

CG-1

T-6A T-6

24

MA-1001

Ci-2

21

PL-5

PL-8

SJ-2

SJ-1

Tu-1

Sau-1

NO-1

NS-1

KAN-2

KA-1KA-3

DorS-9DorS-10

8

DorS-7

CO-6

8

CLi.e-3

HT.x-2

HT.x-1

ARG.MAy-2

CLi.e-1

CLi.e-2

CLi.e-4

ARG.MAy-3

ARG.MAy-4

ARG.MAy-1

Central PL

OK-1

Santiago Norte a-4

Pampa Larga a-12

San Miguel x-1Pampa x-1

Nika a-5

Cerro Sutlej x-1

Bump Hill x-1

Puesto Ranger x-1

Chewelche x-1

NE Chewelche x-1

5 km

P. Larga a-12

Nika a-5

Chewelche x-1

Nika Oeste ST

Pampa Larga Este x-1

Nika Sur ST

Santiago NorteDesarrollo B

Santiago NorteDesarrollo A

Dicky

Monte AymondEstratigráfico

Pampa Larga a-13

Pampa LargaExplo. PL-4

DRILLED WELLS

CURRENTLY DRILLING

2007 PROGRAM

2008 PROGRAM

Pampa x-1

13

SB- Datum Top Springhill

ProposedP.x-1

TopTobifera

Amplitude anomaly

SN-2

SN-2

SN.a-4

SN-1

SN-3

P.x-1

SN-3

SN-2

SN.a-4

SN-1

SN-3

P.x-1

SN-3

SN-2

SN.a-4

SN-1

SN-3

P.x-1

SN-3

Objective : Springhill FormationTD: 3150 m

Fell Block: Pampa 1 Well

Pampa Prospect Reserve Estimate: 30 BCF

14

SB- datum Top Springhill

N

Anomalìa de amplitud

Proposed Ni.a-5

Ni.a-5

Fell Block: Nika 5 Well

Nika Prospect Reserve Estimate: 17 BCF

Objective : Springhill FormationTD: 3100 m

15

Top Springhill

Amplitude anomaly

1 Km

Top Tobifera

KANN-2

Proposed PR.x-1

1 Km

PR.x-1

Fell Block: Puesto Ranger 1 Well

Objective: Springhill FormationTD: 3150 m

Puesto Ranger Prospect Reserve Estimate: 30 BCF

16

Del Mosquito Block: Opportunity Inventory

Ex Baliza Dungeness

HITO II-I

HITO II-IIHITO II-III

HITO II-IV

HITO II-V

HITO II-VI

HITO II-VII

HITO II-IX

HITO II-X

HITO II-XIHITO II-XII

HITO II-VIII

s de Enero

La Pirca

Trece

Campo Limite

FARO VIRGENES

C.VIRGENES

P. DUNGENESSSkua

Atun

Del Mosquito

( 92 Km )Seismic Program

( 70 Km )Lead #7

Seismic Program2

2

Pejerrey

Skua

DE

ESTRECHO

MAGALLANES

R i

Cerro Convento

Campo Molino

Cerro Norte

C h o r

r i l l o

s

R i

d e l o s

F r a

i l e s

Condor Oeste

Chorrillos

POSESION

BAHIA

Condor Norte

Zanja Pique

Laguna del Mosquito

Dos Lagunas

Seccion Gap

Del Mosquito

Cerro Redondo

La Vega

Oceano

Cañadón

FARO VIRGENES- Geodine -

Fraile

Del Mosquito Norte

( 400 Km )Condor Norte

Seismic Program2

- CSJ -

CA-11

SPITEFUL NORTE

CL.x-1001

Bardas Condor

4

GIA5.x-1

GGHG.x-1

GOC5.x-1

GHJ10.x-1

GSJ2.x-1

32

31

21

23

24

25

26

1529

31

2928

27

CN.x-1

10

11

16

17

2

20

34

5

6

78

9

CH"B".x-1

1013

14

18

19

2

21

23

25

28

3

45 6

ChoE.x-1

ChoN.x-1

ChoS.x-1

FDC.x-1

LPi.x-1

2

38

TC.x-1

2

3

6

En.x-1

35 H

33

CCv.x-1

2

2

4

2

34

3

4

5

67

CCvS.x-1

4

2

LBC.x-1

2

3

SF.x-12

4

5

67

CVi.x-1

Condor-1

N-1

3

1

54

2

1

2

3 4

5

6

7

8

9

10

10

16

6

7

8

48

43

44

46EPu.x-1

39

41

40

6 O.x-1

13

161819 2

20

21

222324

25

27

28

29

3

31

35

374

5

68

9

PN.x-1

12

1433

36 38

LDM.x-1

CCRa.x-1

CLi.x-1

2

34

2

x-1

MAY.x-12

3

4

15

16

611

3

72

SRC.x-1

3

4

5

6 7

8

1001

CR-1001

1005

10

11

12

13

14 15

1617

18

19

2

20 b

21

22

23

2425

26

2730

33

35

36

38

3940 41

4445

46

5

50

52

53

6 7

8

9

10

100

105

106 107

108

12

13

14

15

16

17

18

19

2

20

21

22

23

2425

27282930

3132

33

35

3637

4

40

41

42

4345

46

47

48 50

51

52

53

54

56

5758

59

62

6566

67

69 71

76

788

80

84

86

87

8889

9

909192 93

949596 98

CO-1

10

2

34

5

6

7

8

9

9 (I)

HV.x-1

MC.x-1

MD.x-1

NR.x-1

22 (I)

3 NRS.x-1

TCE.x-1

1010

1011

1002

1007

1005

1008

1004

1009

Posesion

Wallis

3

63

Jaiba

Neptuno4 3

XE-1

XE-1

XE-5

319

63

63

2 13

1

1

1

1

XE-6

XE-1

3

2

610 7

3

13

14

104

1

12

Mytilus

5

Robalo

102

Dungenes

Pinguino

Narrow

Pulpo

X.E.-2

a N

XE-3

BCo.x-1

Cho.x-19

12

CMo.x-1

12

19

1163

8

4 2714

32

LV.x-1

DL-4

DMN.a-2

DMN.x-1

33

DM.x-2

6

8

LDM.x-2

ZP.x-1

SG-1

LDMS.x-1

DL-3

DL-1

9

7

5

31

30

DM.x-3

2925

24

2322

21

20

19

18 171615

13

12

11

10

DM.x-1

3 2

CNo.x-1

CF.x-1

DMN.a-3

EE

FV.x-1FV.e-2

10

94 71213

15

5 6

11

C H I L E

ARGENTINA

PROVEN OIL

PROBABLE OIL

PROVEN GAS

PROBABLE GAS

PROSPECTS

LEADS

ATLA

NTIC

OCEAN

PACIF

IC O

CEAN

LOCATION MAP

10 km

5

LAGUNA DEL MOSQUITO

LEAD

SOUTHERN FLANKLEAD

CAÑADON FRAILE SURLEADS

CAÑADON FRAILELEAD

EASTERN FLANKPROSPECTS

4

3

2

1

6

7

8

9

10

CAÑADON LUCKLEADZANJA DINERO

PROSPECT

DOS LAGUNASLEAD

11

12

13CAMPO LEANDROPROSPECT

Ex Baliza Dungeness

HITO II-I

HITO II-IIHITO II-III

HITO II-IV

HITO II-V

HITO II-VI

HITO II-VII

HITO II-IX

HITO II-X

HITO II-XIHITO II-XII

HITO II-VIII

s de Enero

La Pirca

Trece

Campo Limite

FARO VIRGENES

C.VIRGENES

P. DUNGENESSSkua

Atun

Del Mosquito

( 92 Km )Seismic Program

( 70 Km )Lead #7

Seismic Program2

2

Pejerrey

Skua

DE

ESTRECHO

MAGALLANES

R i

Cerro Convento

Campo Molino

Cerro Norte

C h o r

r i l l o

s

R i

d e l o s

F r a

i l e s

Condor Oeste

Chorrillos

POSESION

BAHIA

Condor Norte

Zanja Pique

Laguna del Mosquito

Dos Lagunas

Seccion Gap

Del Mosquito

Cerro Redondo

La Vega

Oceano

Cañadón

FARO VIRGENES- Geodine -

Fraile

Del Mosquito Norte

( 400 Km )Condor Norte

Seismic Program2

- CSJ -

CA-11

SPITEFUL NORTE

CL.x-1001

Bardas Condor

4

GIA5.x-1

GGHG.x-1

GOC5.x-1

GHJ10.x-1

GSJ2.x-1

32

31

21

23

24

25

26

1529

31

2928

27

CN.x-1

10

11

16

17

2

20

34

5

6

78

9

CH"B".x-1

1013

14

18

19

2

21

23

25

28

3

45 6

ChoE.x-1

ChoN.x-1

ChoS.x-1

FDC.x-1

LPi.x-1

2

38

TC.x-1

2

3

6

En.x-1

35 H

33

CCv.x-1

2

2

4

2

34

3

4

5

67

CCvS.x-1

4

2

LBC.x-1

2

3

SF.x-12

4

5

67

CVi.x-1

Condor-1

N-1

3

1

54

2

1

2

3 4

5

6

7

8

9

10

10

16

6

7

8

48

43

44

46EPu.x-1

39

41

40

6 O.x-1

13

161819 2

20

21

222324

25

27

28

29

3

31

35

374

5

68

9

PN.x-1

12

1433

36 38

LDM.x-1

CCRa.x-1

CLi.x-1

2

34

2

x-1

MAY.x-12

3

4

15

16

611

3

72

SRC.x-1

3

4

5

6 7

8

1001

CR-1001

1005

10

11

12

13

14 15

1617

18

19

2

20 b

21

22

23

2425

26

2730

33

35

36

38

3940 41

4445

46

5

50

52

53

6 7

8

9

10

100

105

106 107

108

12

13

14

15

16

17

18

19

2

20

21

22

23

2425

27282930

3132

33

35

3637

4

40

41

42

4345

46

47

48 50

51

52

53

54

56

5758

59

62

6566

67

69 71

76

788

80

84

86

87

8889

9

909192 93

949596 98

CO-1

10

2

34

5

6

7

8

9

9 (I)

HV.x-1

MC.x-1

MD.x-1

NR.x-1

22 (I)

3 NRS.x-1

TCE.x-1

1010

1011

1002

1007

1005

1008

1004

1009

Posesion

Wallis

3

63

Jaiba

Neptuno4 3

XE-1

XE-1

XE-5

319

63

63

2 13

1

1

1

1

XE-6

XE-1

3

2

610 7

3

13

14

104

1

12

Mytilus

5

Robalo

102

Dungenes

Pinguino

Narrow

Pulpo

X.E.-2

a N

XE-3

BCo.x-1

Cho.x-19

12

CMo.x-1

12

19

1163

8

4 2714

32

LV.x-1

DL-4

DMN.a-2

DMN.x-1

33

DM.x-2

6

8

LDM.x-2

ZP.x-1

SG-1

LDMS.x-1

DL-3

DL-1

9

7

5

31

30

DM.x-3

2925

24

2322

21

20

19

18 171615

13

12

11

10

DM.x-1

3 2

CNo.x-1

CF.x-1

DMN.a-3

EE

FV.x-1FV.e-2

10

94 71213

15

5 6

11

C H I L E

ARGENTINA

PROVEN OIL

PROBABLE OIL

PROVEN GAS

PROBABLE GAS

PROSPECTS

LEADS

ATLA

NTIC

OCEAN

PACIF

IC O

CEAN

LOCATION MAP

10 km

5

LAGUNA DEL MOSQUITO

LEAD

SOUTHERN FLANKLEAD

CAÑADON FRAILE SURLEADS

CAÑADON FRAILELEAD

EASTERN FLANKPROSPECTS

4

3

2

1

6

7

8

9

10

CAÑADON LUCKLEADZANJA DINERO

PROSPECT

DOS LAGUNASLEAD

11

12

13CAMPO LEANDROPROSPECT

17

1530 ms (P90) = 5.15 km2

1515 ms (P10) = 1.9 km2

CL x-1

Objective : Springhill FormationTD: 1890 m

Top

Springhill

CL x-13.2 km

NESW

Del Mosquito Block: Campo Leandro Exploration Well

OIL CASERESERVESUnrisked VolumesMean: 4 MMBBLP90: 6 MMBBL

GAS CASERESERVESUnrisked VolumesMean: 18 BCFP90: 32 BCF

18

Fell Block - Chile

Del Mosquito - Argentina

Work Programme 2007-2008

2007-2008 Period:•Drilling 30 new wells with (3) active rigs•CAPEX of US$ 100 Million (Funded by cash, IFC loan, revenues and Methanex gas pre-sale)

Risk-balanced full cycle programme: production, development and exploration projects

Year (US$ MM) 2007 2008

Workovers 0.2 0.6

Seismic surveys 0.1

Development Drilling 1 1.8

Explo.Drillings + App. + Dev. 2.5 2.1

Facilities 0.4 2.2

TOTAL Investments 4.2 6.7

Year (US$ MM) 2007 2008

Workovers 4.9 4

Seismic surveys 550km2/ 9.1

Development Drilling 9.5 26

Explo.Drillings + App. + Dev. 7.2 20

Facilities 7.7 8.9

TOTAL Investments 38.3 59.4

19

Methanex Strategic Alliance

• Original MOU Agreement signed by both parties in 1Q07 with final execution targeted for execution in 4Q07 (Principal parts of the agreement have been put into effect)

• MOU involves 4 main components:

– Long term (10 years) gas supply contract (Basic terms agreed 1Q07)

– New gas price formula resulting in more advantageous pricing of gas for GEOPARK and a volume bonus directly linked to volumes above 18 mmcfd. New price also positively impacts reserves (Basic terms agreed 1Q07 and put in effect 2Q07)

– Gas Pre-Sale Agreement: US$ 40 million of gas to be sold in advance (Basic terms agreed 3Q07 with expected disbursement 4Q07)

– Strategic partnership to acquire new blocks for gas exploration in Chile (Basic terms agreed 3Q07 with first bidding planned for 4Q07)

• The Methanex Agreement substantially de-risks exploration for gas on the Fell Block and financially underpins GEOPARK’s medium term exploration and development activities

20

Business Development: GEOPARK’s Platform for Growth

• GEOPARK is well positioned to become a consolidator in the Southern Cone

– Experienced technical team – and a large in house capability to:

– Extract maximum value from existing assets

– Take advantage of external opportunities as they arise

– Strong financial position

– IFC backing

– Methanex strategic alliance

– Rising operating cash-flow

• GEOPARK near term priority is to profitability grow production from the Fell Block in Chile

• However, the Company remains alert to external opportunities

21

Business Development: Argentina

100 km

BLOQUEDEL MOSQUITO

BLOQUEFELL

S A N T A

C R U Z

C H I L E

BLOQUETAPI AIKE

BLOQUEEL TURBIO ESTE

BLOQUEEL TURBIO

• 3 Bids by Geopark

• El Turbio Este• El Turbio• Tapi Aike

• Qualified through all bidding rounds. (Onlyoil and gas operator to do so.)

• Large blocks with attractive upside potentialand adjacent to producing fields

• Currently waiting for results

Santa Cruz Province

22

Business Development: ChileMagallanes Region

• Formed a consortium of Methanex, Wintershall and GEOPARK to participate in new block tender in Chile

• Complementary focus, strengths and abilities

• Consortium currently evaluating blocks, led by GEOPARK technical evaluation

• Bids due October 10, 2007

• GEOPARK is currently the only private-sector upstream operator and producer in Chile

Coirón

Lenga

Springhill PlatformSlope

Rusfin

Otway

Tranquilo

Lago Mercedes

Folded Belt

MarazziRío Hondo

Chañarcillo

Arenal Intracampos

Brótula

Caupolicán

Bahía Inútil

Porvenir

Hinge line3000 Mts

Basin Axis7000 Mts 5000 Mts

Lago Blanco

IslaMagdalena

Dorado-Riquelme

FELL

Coirón

Lenga

Springhill PlatformSlope

Rusfin

Otway

Tranquilo

Lago Mercedes

Folded Belt

MarazziRío Hondo

Chañarcillo

Arenal Intracampos

Brótula

Caupolicán

Bahía Inútil

Porvenir

Hinge line3000 Mts

Basin Axis7000 Mts 5000 Mts

Lago Blanco

IslaMagdalena

Dorado-Riquelme

FELL

23

Summary & Conclusions

• Rig related delays will not impact the Company’s exit production objective of 4000 boepd for 2007

• An active 30 well drilling programme should see production double in 2008

• The drilling inventory has been substantially increased as a result of technical work undertaken in the first 9 months of 2007

• Results from seismic, workovers and drilling are expected to have positive implications for year-end reserves position

• GEOPARK has all the ingredients in place to deliver a protracted period of growth in value for shareholders in the foreseeable future

24

Creating Value and Giving Back

Safety, Prosperity, Opportunity, Community, Harmony

Long term success in creating value will be enhanced and measured by our collective achievement in each of these areas.

• Safety – Creating a safe and organized workplace ensuring that everyone returns home from work everyday without injury

• Prosperity – Performing with effort, quality and beyond our commitments to continuously build market value. Only a financially healthy company can provide benefits for others

• Opportunity – Providing the opportunity for employees to grow professionally, contribute and share in the success of the company

• Community – Respecting and protecting the region, laws, customs and people where we work – and creating real and sustainable opportunities and benefits for the local communities

• Harmony - Leaving the environment in the same or better natural condition than when it was encountered

25

Company Directory

Nominated Advisor & Broker Oriel Securities Limited

125 Wood Street London EC2V 7AN, United Kingdom

www.orielsecurities.com

Reporting Petroleum Engineers DeGolyer and MacNaughton

5001 Spring Valley Road Suite 800 East Dallas - Texas 75244, USA

www.demac.com

Solicitors Norton Rose

3 More London Riverside London SE1 2AQ, United Kingdom

www.nortonrose.com

Auditors Grant Thornton UK LLP

Grant Thornton House Melton Street London NW1 2EP, United Kingdom

www.grant-thornton.co.uk

Web Page: www.geo-park.com E-mail: info@geo-park.com

Main Office GEOPARK HOLDINGS LIMITED

Florida 981, 4th floor 1005 Buenos Aires

Argentina Tel.: 54 11 4312 9400