Achieved Total Company Average Second Quarter Production of 41,501 BOEPD 1 Net Income of $25 Million , Adjusted EBITDA 2 of $85 Million and Positive Free Cash Flow Announcement of Prospective and Contingent Resource Report on Dawson Clearwater and Mount Head Areas in Canada Completed Suroriente Capital Carry Improving Profitability of the Block Announcement of the Disposition of Lodgepole Assets for C$12.8 Million Satisfied the Conditions Precedent for Tisquirama Contract Providing Further Growth Potential in Colombia CALGARY, Alberta, Aug. 05, 2026 (GLOBE NEWSWIRE) -- Gran Tierra Energy Inc. (“Gran Tierra” or the “Company”) (NYSE American:GTE) (TSX:GTE) (LSE:GTE) announced the Company's financial and operating results for the quarter ended June 30, 2026 (the “Quarter”). All dollar amounts are in United States (“U.S.”) dollars and all reserves and production volumes are on an average working interest (“WI”) before royalties basis unless otherwise indicated.