GeoPark Announces Record 2014 Year-end Certified Reserves:

GeoPark Limited (“GeoPark”) (NYSE: GPRK), the Latin American oil and gas explorer, operator and consolidator with operations and producing properties in Colombia, Chile, Brazil, Argentina and Peru¹, announced today its updated reserves assessment as of December 31, 2014 as independently certified by DeGolyer and MacNaughton (“D&M”) under PRMS methodology.

Year End 2014 D&M Certified Reserve Highlights

• Record oil and gas production volume of 7.5 MMBOE in 2014 from Colombia, Chile, Brazil and Argentina
• Continued diversification of reserve base with strategic entry into Peru with acquisition of the Morona Block (18.8 MMBOE of 1P reserves, 30.2 MMBOE of 2P reserves, 60.2 MMBOE of 3P reserves and large exploration resources)
• Total net 1P reserves in Colombia, Chile and Brazil increased by 52% to 44.2 MMBOE and, including Peru, by 116% to 62.9 MMBOE
• Total net 2P reserves in Colombia, Chile and Brazil increased by 31% to 92.1 MMBOE and, including Peru, by 74% to 122.3 MMBOE
• Total net 3P reserves in Colombia, Chile and Brazil increased 23% to 160.8 MMBOE and, including Peru, by 69% to 221.1 MMBOE
• 2P reserve life index (“RLI”) in Colombia, Chile and Brazil equaled 12.3 years and, including Peru, equaled 16.3 years
• For each BOE produced in 2014 in Colombia, Chile and Brazil, 3.9 BOE of 2P reserves was added with a 2P reserve replacement index (“RRI”) of 387% and, including Peru, 7.9 BOE of 2P reserves was added with a RRI of 795%

Commenting, James F. Park, CEO of GeoPark, said: “In addition to our record production levels and solid financial results, our successful 2014 work program resulted in significant growth in our underlying oil and gas reserve asset base. This substantially increased both our near and long term value – and further demonstrated the oil-finding capabilities of our team and quality of our blocks and assets. Much of our new growth came from continued expansion of the low risk, low cost and high netback Tigana and Tua oil fields discovered and operated by GeoPark in the Llanos 34 Block in Colombia, and which provide a secure production base during periods of oil price volatility. Overall, our sizable 2P reserve base (120+ MMBOE) mixed with our growing exploration resource potential (500 – 1,000 MMBOE) in five countries gives GeoPark one of the more attractive independent company project portfolios in Latin America.”

¹Transaction executed with Petroperu on October 1, 2014 with final closing subject to Peru Government approval.