 CALGARY, Alberta, May 04, 2021 GLOBE NEWSWIRE -- Gran Tierra Energy Inc. Gran Tierra or the Company NYSE American:GTETSX:GTELSE:GTE today announced the Companys financial and operating results for the quarter ended March 31, 2021 the Quarter. All dollar amounts are in United States dollars and production amounts are on an average working interest before royalties WI basis unless otherwise indicated. Per barrel bbl amounts are based on WI sales before royalties. For per bbl amounts based on net after royalty NAR production, see Gran Tierras Quarterly Report on Form 10-Q filed May 4, 2021. 