CALGARY, Alberta, Dec. 21, 2021 (GLOBE NEWSWIRE) — Gran Tierra Energy Inc. (“Gran Tierra” or the “Company”) (NYSE American:GTE)(TSX:GTE)(LSE:GTE) is pleased to announce the successful completion of the semi-annual redetermination of the Company’s bank-syndicated credit facility, which has a maturity date of November 2022. All dollar amounts are in United States (“U.S.”) dollars, unless otherwise indicated. Read More