GeoPark: Corporate Presentation

CO RPO RA TE P RESE N TA TI O N

Building Enduring Value

(Production kboepd)

70

INITIAL STAGES

Diversified Exploration Success, Multiple Countries

SCALE UP

Growth and Cash Generation

PROFITABILITY

Consistent Shareholder Returns

GROWTH RESET

Growth Focus, Production and Cash Flow Longevity

60

50

40

30

20

10

0

2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025F 2026F 2027F 2028F 2029F 2030F

Firm Plan Curve with Natural Decline Cumulative Adj. EBITDA ($B)

geophysical expenses allocated to capitalized projects, and other non-recurring events

4. Brent Price Assumptions: 2025: 2026-2028F: $68/BBL average; 2029-2030F: $70/BBL average.

CO RPO RA TE P RESE N TA TI O N

Leveraging Core Strengths to Power the Future

SAFETY

Decades of Industry-Leading HSE

STABILITY

Proven Creditworthiness and Access to Capital Markets

EFFICIENCY

Best-in-Class Cost Performance

FOCUS

Selective, Disciplined, and Value-Driven Growth Vision

RESILIENCE

Proven Ability to Operate Through Volatile Local and International Environments

RIGHT PEOPLE

Diverse Senior Team with Strong Track Record and Global Experience

Safety, Prosperity, Employees, Environment and Community Development integrated value system, which defines:

• How we make decisions in the Company

• How we have driven our continuous and sustainable growth for over 20 years

2025 Results

Full-year Guidance Delivered, Transformational Portfolio Reset Well Underway

28,233 boepd

Production 2025

28,351 boepd 4Q2025

$493 M

Revenues 2025

$277 M

Adj. EBITDA 2025

56% EBITDA Margin

$100 M

Cash

5

December 2025

1.6x

Net Debt/EBITDA

December 2025

$13.2/boe

Operating Costs

Per Produced Barrel

CO RPO RA TE P RESE N TA TI O N

Step-Change in Reserves That Builds on Enduring Value

2P RESERVES (MMBOE)* RESERVE LIFE INDEX (YEARS)*

Base Business Argentina

87.6

38%

121.3

7.1

80%

12.7

2024 2025 2024 2025

KEY DRIVERS

Vaca Muerta Acquisition now represents 30% of 2P Reserves

Llanos 34 Recovery optimization and execution

Llanos 123 New formations and recovery enhancements

CPO-5

Strong Indico well performance

NEW TECHNICAL AUDIT ON LLANOS 34

Original Oil In Place (OOIP): +206 MMBOE

Representing a 22% Increase Certified by D&M

430%

2P RRR

$1.3 BN

2P NPV10

$15.8

2P NPV Per Share

(*) 2025 DeGolyer and MacNaughton (D&M) Report.

CO RPO RA TE P RESE N TA TI O N

2026 Work Program and Medium-Term Guidelines

2026 WORK PROGRAM

MEDIUM-TERM HIGHLIGHTS

PRODUCTION (KBOEPD)

44 - 46

PRODUCTION

27 - 30 KBOEPD

DRILLING WELLS

27 - 36 GROSS

OPEX

$13 - 15/BOE

CAPEX

$190 - 220 MM

EBITDA

$220 - 300 MM

27 - 30

32 - 34

2026 2027 2028

CAPEX

BREAKDOWN

45%

55%

14%

86%

CAPEX ($MM)

190 - 220

280 - 310

350 - 380

2026 2027 2028

Colombia Argentina

Development

Exploration

Base

Development

Exploration Unconventional

$11 - 13/BBL

Lifting Cost by 2028

~$4/BBL

G&A

2026

~$3/BBL

G&A by 2028

Maximizing our Assets' Potential

CO RPO RA TE P RESE N TA TI O N

Llanos Blocks: Strategically Positioned in the Heart of the Basin

CUSIANA

UNLOCKING INCREMENTAL RESERVES BY PRODUCTION AND RECOVERY OPTIMIZATION

LLA 87

LLA 123 LLA 34

LLA 104 CARACARA

OCELOTE

DELIVERING RESILIENT MARGINS THROUGH HIGH-EFFICIENCY OPERATIONS & COST

AKACIAS CHICHIMENE

CASTILLA

APIAY

CPO-4-1

CPO-5

VALDIVIA

LLA 86

CAÑO

JASPE

RUBIALES

DISCIPLINE

ACCELERATING NEAR-FIELD EXPLORATION

PENDARE

SUR QUIFA

7 E& P BL OC K S ● 1 . 4 MM AC RES ● 1 . 3 MM AC RES 3 D SEISMIC

C OR E PRO D UC IN G H U B S: LL AN O S 3 4 - C PO- 5 IN DIC O - LLA N OS 12 3

UNLOCKING GROWTH AND LONG-TERM VALUE CREATION

CO RPO RA TE P RESE N TA TI O N

Llanos 34: Scaling Enhanced Recovery

3X INJECTION CAPACITY

60 - 70 WATER INJECTORS

Current WF

Ongoing delineation

DEVELOPMENT PROGRAM

100 NEW WELLS

POLYMER EXPANSION

30 POLYMER PATTERNS

POLYMER EXPANSION

CO RPO RA TE P RESE N TA TI O N

CPO-5 | Indico Field: Exceptional Subsurface Quality

35 MMBO CUMULATIVE PRODUCTION

WORLD-CLASS LIGHT OIL RESERVOIR

DISCIPLINED FIELD DEVELOPMENT SUCCESFULY COMPLETED

STRATEGIC WATER MANAGEMENT

PRODUCTION PERFORMANCE

Rates (bopd-bwpd)

Oil

Water

Np (Mmbo)

30,000

25,000

20,000

15,000

10,000

5,000

0

Cumulative Oil (MMbo)

40

35

30

25

20

15

10

5

0

Nov-18 Nov-19 Nov-20 Nov-21 Nov-22 Nov-23 Nov-24 Nov-25

CO RPO RA TE P RESE N TA TI O N

Llanos 123: From Discovery to >5,000 boepd in 2 Years

SALTADOR

BISBITA

CURRUCUTU

TORITOS

LLANOS 123

TORITOS

SUR

13 WELLS DRILLED

10 Producer Wells

(77% Success Rate)

SUCCESSFUL SECONDARY RECOVERY

Delivering Reserve Growth and Higher Recovery Factors

40 WELLS TO BE DRILLED

Development &

Exploration

PRODUCTION PERFORMANCE

Oil Rate (boepd)

Cumulative Oil (MMbo)

20,000

Development (Firm)

45

Dev&Explo

40

15,000

10,000

5,000

0

Oil Prod Np (MMbo) 35

30

25

20

15

10

5

Jul 26 Jul 27 Jul 28 Jul 29

0

STRATEGIC POSITIONING - HIGHLY PRODUCTIVE CORRIDOR

Jul 23 Jul 24 Jul 25 Jul 30

CO RPO RA TE P RESE N TA TI O N

Llanos Exploration: Low Risk, Low Cost,

Higher Value, Extended Production

KEY PROJECTS: VENCEJO - PREDESTINACION - TIJERETA NEAR-FIELD OPPORTUNITIES IN LLANOS 123 AND CPO-5

Oil Fields

2026 Prospects

2027+ Prospects

3D Seismic. Grande Merge (5,100 Km2) 2023 LL86&104 3D Seismic

2023 CPO5 3D Seismic

FOCUSED VALUE-DRIVEN PORTFOLIO DEEP BASIN KNOWLEDGE STRATEGIC BASIN POSITIONING

CAPITAL AND OPERATIONAL EFFICIENCY RAPID MONETIZATION

MOST ACTIVE AND SUCCESSFUL EXPLORER IN THE BASIN (LAST 3 YEARS)

CO RPO RA TE P RESE N TA TI O N

Vaca Muerta: Positioned in the Core of a World-Class Shale Play

PRIME ACREAGE IN THE CORE OIL WINDOW

RESERVOIR QUALITY ON PAR WITH TOP-TIER ASSETS STRONG EARLY RESULTS

STRATEGIC POSITION AMONG LEADING OPERATORS INFRASTRUCTURE-READY FOR EFFICIENT SCALE-UP

Best-in-class Average Well Productivity*

First 365 days cumulative production, Mbbl per 1,000 ft lateral 30

Days

21 20 19

15 11

Vaca Muerta Permian

Delaware

Bakken Eagle Ford Permian

Midland

DJ Basin

*Source: Rystad Energy ShaleWellCube | Normalized performance - Includes only horizontal oil wells starting production in 2021 and 2022.

CO RPO RA TE P RESE N TA TI O N

Vaca Muerta: The Road to 20,000 boepd

Production (boepd)

24,000

SEAMLESS TAKEOVER AND ACCELERATED EXECUTION LATEST DEVELOPMENT

TEAM FULLY INTEGRATED

18,000

12,000

Scaled a high-performance Business Unit 6 to 40 people in 4 months,

consolidating +125 years of Vaca Muerta expertise.

Implemented a lean, scalable operating model leveraging Colombia's

backbone.

6,000

SUCCESFUL ARTIFICIAL LIFT INSTALLATION

-

2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035

2 successful campaigns, with the second campaign cutting shut-in time by 10 days and costs by ~30%.

Single Rig

2025

Program

50 - 55

2026

Wells

~ 1 B

2027

Total Capex

+ 20,000

Plateau

2028

2026 DRILLING RIG WINDOW SECURED

Assigned operational window with expected spud in March 2026.

GPRK Treatment

Total 2026 D&C campaign: 5 horizontal wells

Production

Artificial Lift

Environmental

Studies & Permits

3rd Party Treatment

GPRK Own

Facilities

LJE Upgrade

Facilities

/Evacuation

Pipeline

PSO Central Facility

D&C

5 well pad

FACTORY DRILLING (1 RIG 10-15 WELLS/YEAR)

3RD PARTY TREATMENT AND EVACUATION CAPACITY

Connection to a third-party facility.

1 5

Liquid handling capacity upgrade at LJE.

CO RPO RA TE P RESE N TA TI O N

A Step-Change in Scale and Cash Flow to Enable Growth

1

Large Scale Consolidation Move that Reinforces Long-Term Commitment to Colombia

Stronger, More Resilient Company, Advancing

2 into a New Tier of Independent E&P Leaders in Latin America

3

Improved Ability to Fund Growth and Navigate Cycles

1. Clear Path to Long-term Shareholder Value Creation

2. Disciplined Balance Sheet Approach

GeoPark

Combined Figures

+90 KBOEPD

Production 2028F

168 MMBOE

1P Reserves(1)

268 MMBOE

2P Reserves(1)

~US$ 950MM

EBITDA 2028F

+45 KBOEPD

Production 2028F

69 MMBOE

1P Reserves(1)

121 MMBOE

2P Reserves(1)

~US$ 500MM

EBITDA 2028F

Note: Notes: (1) Frontera Energy's 2024 and GeoPark's 2025 reserves certified by DeGolyer and MacNaughton Corp.

CO RPO RA TE P RESE N TA TI O N

Frontera's Upstream Portfolio Overview

PRODUCTION BREAKDOWN

Frontera Blocks

GeoPark Blocks

Basins

STABLE PRODUCTION (KBOEPD)

38

41

40

39

40

2021 2022 2023 2024 3Q25

LTM

Frontera holds 17 blocks located within GeoPark's core basin, creating strong geographic and operational overlap

6%

25%

14.2%

3.7%

BY TYPE

3Q 25' LTM

69%

17 Blocks

4.7%

14.7%

BY FIELD

2024YE

18.8%

43.9%

Heavy Crude Oil

Light & Medium Crude Oil Combined

Gas

Quifa CPE-6 Guatiquia

VIM-1 Cubiro Others

FINANCIAL AND OPERATIONAL HIGHLIGHTS

US$ 335 MM

EBITDA 3Q25 LTM

6.8

10.2

40 KBOEPD

O&G Production 3Q25 LTM

1P 2P

Reserves RLI

CO RPO RA TE P RESE N TA TI O N

Immediately Accretive on Every Valuation Metric

x

2.0x

EV/EBITDA

3.3x

3.0x

$/BOEPD

15.1

EV / FLOWING BARREL

30.2 27.9

Purchase Price Implied Multiple

$/BOE

6.1

Purchase Price Implied Multiple

GeoPark Colombian Peers

EV / 1P

13.1

10.5

GeoPark Colombian Peers

Purchase Price Implied Multiple

$/BOE

4.1

Purchase Price Implied Multiple

GeoPark Colombian Peers

EV / 2P

7.4

6.4

GeoPark Colombian Peers

Notes: (1) GeoPark's Market Cap as of January 28th, 2026. (P): Preliminary unaudited figures

World Class Execution: Safe, Reliable & Profitable

CO RPO RA TE P RESE N TA TI O N

Innovation

VERTICAL WELLS*

16

17

15

14

10

4.5

4.1

3.5

3.7

2.8

2021

2022

2023

2024

2025

Drilling Times (days)

Drilling & Completion Cost ($MM)

New

Generation Rig

Rigless CBL**

& Perforation

* Two-phase vertical wells.

**Cement Bond Log.

Capital Efficiency in Llanos 34 Through Technology and

HORIZONTAL WELLS

47

37

33

10.9

8.3

6.9

2021 2022 2023

Quicker Mobilizations

Autonomous Drilling Integrating AI

CO RPO RA TE P RESE N TA TI O N

Excelling at Cost Management in Colombia

20

18

16 3Q2025 Average: 15.0

14

12

10

8 7.5

6

4

2

0

OPEX* ($/BBL)

11.3

7.9

12.3

2026 - 2030F:

<$15/BBL

12.5

Continuous "Can Do Better" Mindset

Innovative Actions

• Water Decanter

• Water Shut Off WOs

• Generation from Solar and Captured Gas

2Q2025

Well Service Costs 30% Lower vs Peers (4Q2024 Benchmark)

2021 2022 2023 2024

Peer 1 Peer 2 Peer 3 Peer 4 GeoPark

3Q2025

*OPEX: Operating Expenses. OPEX/BBL calculated over barrels produced.

Source: Financial statements of each company.

Building Enduring Value

CO RPO RA TE P RESE N TA TI O N

Resilient Portfolio Across Price Scenarios

RESERVES & RESOURCES* (MMBOE)

% PRODUCTION VS BREAKEVEN

2 1 BE < $70/BBL

77

56

Average

2026 - 2028F

Average

2029 - 2030F

BE <= $50/BBL BE = $50 - 60/BBL BE > $60/BBL

~ 99% OF PRODUCTION RESILIENT AT BREAKEVEN < $60/BBL

*Includes 3P reserves plus contingent resources.

2

BE < $60/BBL

3

BE < $50/BBL

CO RPO RA TE P RESE N TA TI O N

Vaca Muerta Underpins Growing Value and Returns

CAPEX ($ MM) ADJUSTED EBITDA ($ MM)

68

68

70

290 - 320

520 - 550

345 - 375

277

220 - 250

98

2025F Average 2026 - 2028F

Average 2029 - 2030F

2025 Average

F

2026 - 2028F

Average 2029 - 2030F

Base Business Argentina

Brent ($/BBL)

Base Business Argentina

SUPPORTED BY A LEAN STRUCTURE

G&A**: $4.0/BBL

2026 - 2030F

*ROACE: Last twelve-mont h operating profit divided by average capit al employed. Capital employed is calculated as total assets minus current liabilities and adjusted for excess cash. Excess cash corresponds to the portion of cash and cash equivalents that exceeds the amount required to cover current liabilities with current assets. ** G& A includes administrative expenses and geological and geophy sical expenses, excluding certain non-cash items, such as accrual of share-bas ed pay ment, geological and geophy sical expenses allocated to capit alized projects and IFRS 16 adjustment, which are excluded from the Adjusted EBITDA calculation; calculated over produced barrel. Note: Brent Price Assumptions: 2025: $68/BBL; 2026-2028F: $68/BBL average; 2029-2030F: $70/BBL average.

CO RPO RA TE P RESE N TA TI O N

Transformational Cash Generation Post Investment Peak

FREE CASH FLOW ($ MM) FREE CASH FLOW SENSITIVITY* ($ MM)

900 - 950

+/- 1,000 BOEPD

350 - 380

+/- OPEX

(20 - 25)

+/- Brent

Cumulative 2026 - 2028F

Cumulative 2029 - 2030F

Base Business Argentina

Cumulative 2031 - 2035F

+ -

OCF Break-Even** FCF After Debt Service Break-Even***

Brent $35 - 40

(2026 - 2028F)

Brent $30 - 35

(2029 - 2030F)

Brent $70 - 75

(2026 - 2028F)

Brent $60 - 65

(2029 - 2030F)

*Changes in Free Cash Flow for changes of +/- $1/ BBL Brent, +/- $1/ BBL OPEX and +/1 1,000 boepd.

** OCF = Operating Cash Flow, defined as Adj. EBITDA - Cash Taxes +/- Working Capital. FCF = Free Cash Flow, defined as OCF - CAPEX. Cash taxes include payments of income taxes plus withholding and self-witholding taxes.

***Does not include the Facilities construction capex.

Brent Price Assumptions: 2026-2028F: $68/ BBL av erage; 2029-2030F: $70/ BBL av erage.

CO RPO RA TE P RESE N TA TI O N

Solid Balance Sheet and Funding Capacity

NET DEBT ($MM) - NET DEBT/ADJ. EBITDA* (X) Diversified

Funding

1.9

1.6

1.6 - 1.8

Sources

574

0.7 0.8

369 368

0.9

238

453

570 - 600

0.8 - 1.0

445 - 475

Low Refinancing Risk

1P Reserve Life of 7Y

> 4Y Average Debt Maturity

+$2.5 B Raised Since 2010. ~15Y Track Record on Capital Markets

2021 2022 2023 2024 2025F Average

2026 - 2028F

Average 2029 - 2030F

B+ Rating

Net Debt

Net Debt/Adj. EBITDA

Underscores Strong Financial Profile**

Strong Self-Funding

~ 70% of Total CAPEX to 2030

Price Resilient

Peak <= 3.0x at $55/BBL

*Net Debt = Financial Debt minus Cash and cash equivalents.

**Potential Upside from Vaca Muerta acquisition given higher production and reserves.

Note: Brent Price Assumptions: 2026-2028F: $68/BBL average; 2029-2030F: $70/BBL average.

CO RPO RA TE P RESE N TA TI O N

Proactive Hedging Program to Deliver Predictability

CLEAR

GOALS

Protect Cash Flow

CAPEX: $120 - $315 MM

Debt Service: $45 - $55 MM

ROBUST METHODOLOGY

Risk-Adjusted Hedge Design

25+ Top Notch

Forecasting Sources

DISCIPLINED EXECUTION

Structured and Layered Execution

9 ISDAs in Place:

Robust Credit Access

TRACK RECORD

Consistent Market Performance

Cost-Efficient Structures with

Upside Participation

9 Top-Tier

Diversified

Counterparts

12 - 15

Months

Tenor

~30% of 2027

Production

Hedged

~85% of 2026

Production

Hedged

85 Data-Backed Decision-Making

• Data-driven hedge framework

• Scenario-based analytics guiding execution

• Discipline and governance ensuring consistency

80

$73.0

Ceiling

$73.1

Ceiling

$71.3

Ceiling

$71.2

Ceiling

$71.2

Ceiling

$72.4

Ceiling

$65.2

Floor 1

$64.9

Floor 1

$64.9

Floor 1

$64.5

Floor 1

$65.0

Floor 1

$65.0

Floor 1

Brent

$50.0

$50.0

$50.0

$50.0

$51.5

$50.8

75

$68.0

70

65

60

55

Strip Prices*

Floor 2

Floor 2

Floor 2

Floor 2

Floor 2

Floor 2

*Strip Prices as of Feb. 09, 2026

Notes: 1. CAPEX and Debt Service estimated for 2026-2028. 2. Forecasting Sources: Top-tier banks, reserves consulting agencies, and energy agencies. 3. CFaR-based hedge targets ensuring disciplined risk management. 4. Mark-to-Market as of October 16, 2025. 5. ISDA: International Swaps and Derivatives Association.

CO RPO RA TE P RESE N TA TI O N

Ongoing Commitment to Shareholder Returns

PROVEN TRACK RECORD

(Cash Distribution $MM)

71 74

61 61

Renewed Growth Trajectory + Potential

Long-term Shareholder Value and Capital Efficiency

Heightened Investment Needs

Vaca Muerta Development Program

23

19

9 $6.0 MM Twelve-Month Dividend

4

Distribution

2018 2019 2020 2021 2022 2023 2024 2025

Dividends Share Buybacks

+$320 MM

Distributed Between Dividends and Share Buybacks

$1.5 MM Per Quarter (Starting 3Q2025)

Dividend Suspension

As Early as 3Q2026,

in Line With Growing Capex Intensity