CALGARY, Alberta, March 17, 2026 (GLOBE NEWSWIRE) -- Gran Tierra Energy Inc. (“Gran Tierra” or the “Company”) (NYSE American:GTE)(TSX:GTE)(LSE:GTE) is pleased to announce that it has signed a contract (collectively, “the Contract”) whereby the Company is expected to earn, subject to regulatory approvals and other conditions precedent, a 49 percent working interest (“WI”) in the Tisquirama block located in the Middle Magdalena Valley Basin of Colombia (“the Block”) which contains the Tisquirama and San Roque ...