GeoPark Announces First Quarter 2023 Operational Update Bogotá, Colombia April 11, 2023 DELIVERING ON SHAREHOLDER RETURNS & STRENGTHENING THE BALANCE SHEET GeoPark Limited (“GeoPark” or the “Company”) (NYSE: GPRK), a leading independent Latin American oil and gas explorer, operator and consolidator, today announces its operational update for the three-month period ended March 31, 2023 (“1Q2023”). All figures are expressed in US Dollars. Growth comparisons refer to the same period of the prior year, except when otherwise specified. Oil and Gas Production Consolidated average oil and gas production down 4% to 36,578 boepd1, below its production potential of approximately 39,500-40,500 boepd, as previously announced on March 8, 2023, mainly due to temporarily shut-in production and localized blockades in the CPO-5 block (GeoPark non-operated, 30% WI) in Colombia Currently producing approximately 38,000 boepd Llanos Basin Llanos 34 block (GeoPark operated, 45% WI): Average gross production of 54,799 bopd Four drilling and four workover rigs currently in operation GeoPark drilled its first horizontal development well in the block in the Tigana field Production tests initiated in late March 2023 The well was drilled within time and budget to a total depth of 13,862 feet and a horizontal lateral length of 1,270 feet The well is currently producing over 3,000 bopd with 01% water cut from the Mirador formation Based on these results, GeoPark is evaluating drilling additional horizontal wells in 2023 The Llanos 34 block is currently producing approximately 57,000 bopd CPO-5 block: Average gross production of 16,707 bopd, below its production potential of approximately 25,000-26,000 bopd gross, due to shut-in production of the Indico 6 and Indico 7 wells and to a lesser extent, localized blockades, as previously announced on March 8, 2023 The operator expects to resume production in the Indico 6 and Indico 7 wells in May 2023 These two wells were drilled in late 2022 and together tested over 11,000 bopd gross (or 3,300 bopd net to GeoPark) The two wells remained shut in for most of 1Q20232 after the regulator (ANH) requested the operator suspend production until definitive surface facilities are completed Overall production and operations in the block affected for 9 days in 1Q2023 due to localized blockades Yarico 1 exploration well, targeting an exploration prospect adjacent to the Mariposa field, reached total depth in March 2023 According to petrophysical logging interpretation, the well encountered reservoir in the Guadalupe formation, with no evidence of hydrocarbons and depending on injectivity evaluations, may be converted to a disposal well in the future Drilling activities are expected to continue with the Halcon 1 well, targeting an exploration prospect in the northern part of the block, adjacent to the Llanos 34 block, expected to be spudded in 3Q2023 Llanos 87 block (GeoPark operated, 50% WI): Tororoi 1 exploration well reached total depth in December 2022 Production tests in the Mirador formation started in March 2023 and the well is currently producing 240 bopd of light oil with a 1% water cut Zorzal 1 exploration well reached total depth in February 2023 Preliminary logging information indicates hydrocarbons in the Barco formation Initial production tests flowed light oil from the Barco formation Results so far are inconclusive, additional production tests are expected to continue in the next few weeks Picabuey 1 and Koala 1 exploration wells reached total depth in 1Q2023 The wells encountered reservoirs in the Barco and Ubaque formations with no evidence of hydrocarbons and the wells were abandoned Llanos 123 and Llanos 124 blocks (GeoPark operated, 50% WI): Civil works and other activities currently underway in order to spud 2-3 exploration wells in 2Q2023 Putumayo Basin Platanillo block (GeoPark operated, 100% WI): Platanillo Norte 1 development well reached total depth in February 2023 Preliminary logging information indicated hydrocarbons in the U and N formations Production tests in the U formation started in February 2023, currently producing 400 bopd Average gross production of 2,277 bopd Put-8 block (GeoPark operated, 50% WI): Currently working on environmental licensing for the Bienparado exploration prospect Enhanced ESG Performance and Recognition 2022 emissions intensity decreased by 34% to 12.1 kg CO2e/boe3 (or a 40% decrease to 9.7 kg CO2e/boe in core Llanos 34 block) due to the interconnection of the Llanos 34 block to Colombia’s national power grid and the start of operations of the solar plant Launched a biodiversity data management training program for local companies in Colombia to provide valuable inputs for flora and fauna restoration and preservation Multi-year improvement on key safety indicators: Lost Time Injury Rate, Total Recordable Injury Rate, and Motor Vehicle Crash Rate decreased by an average of 50% in the past four years Delivering on Shareholder Returns and Strengthening the Balance Sheet Quarterly dividend of $0.13 per share, or $7.5 million, paid on March 31, 2023 (or an annualized dividend of approximately $30 million, a 4.4% dividend yield4) Acquired 6 million shares (over 1% of shares outstanding) for $7.5 million in 1Q2023 Cash-in-hand of $145 million5 as of March 31, 2023 ($129 million as of December 31, 2022) 2023 Work Program: Growing Production, Drilling More Wells and Giving Back to Shareholders 2023 production guidance of 39,500-41,500 boepd (assuming no production from the exploration drilling program) Self-funded 2023 capital expenditures program of $200-220 million to drill 50-55 gross wells (including 10-15 low-risk high-potential exploration and appraisal wells) At $80-90 per bbl Brent, GeoPark expects to generate an Adjusted EBITDA of $510-580 million and a free cash flow of $120-140 million6 Targeting to return approximately 40-50% of free cash flow after taxes to shareholders Upcoming Catalysts Drilling 10-12 gross wells in 2Q2023, targeting development and exploration projects in the Llanos basin in Colombia Exploration drilling includes 2-3 new gross wells in the Llanos basin (Llanos 123 and Llanos 124 blocks) → Read the full press release. 1 Percentages are calculated adjusting for divestments in Argentina in 1Q2022. 2 Indico 6 was shut in in December 2022 and Indico 7 was shut in in early January 2023. 3 Scopes 1 and 2. 4 Based on GeoPark’s average market capitalization during March 2023. 5 Unaudited. 6 Free cash flow is used here as Adjusted EBITDA less capital expenditures, mandatory interest payments and cash taxes. 2023 cash taxes include GeoPark’s preliminary estimates of the full impact of the new tax reform in Colombia, irrespective of the timing of its cash impact, expected in 2023 or early 2024. The Company is unable to present a quantitative reconciliation of the 2023 Adjusted EBITDA which is a forward-looking non-GAAP measure, because the Company cannot reliably predict certain of its necessary components, such as write-off of unsuccessful exploration efforts or impairment loss on non-financial assets, etc. Since free cash flow is calculated based on Adjusted EBITDA, for similar reasons, the Company does not provide a quantitative reconciliation of the 2023 free cash flow forecast. INVESTORS: Stacy Steimel ssteimel@geo-park.com Shareholder Value Director T: +562 2242 9600 Miguel Bello mbello@geo-park.com Market Access Director T: +562 2242 9600 Diego Gully dgully@geo-park.com Investor Relations Director T: +5411 4312 9400 MEDIA: Communications Department communications@geo-park.com SHARE