Gran Tierra Energy Inc. Announces Consent Solicitation for Senior Secured Amortizing Notes due 2031

CALGARY, Alberta, Sept. 11, 2026 (GLOBE NEWSWIRE) — Gran Tierra Energy Inc. ( “Gran Tierra” or the “Company” ) (NYSE American:GTE) (TSX:GTE) (LSE: GTE) today announced that it is conducting a solicitation (the “ Consent Solicitation ”) of consents (the “ Consents ”) from Holders of its 9.750% Senior Secured Amortizing Notes due 2031 (the “ Notes ”) to effect certain proposed amendments (the “ Proposed Amendments ”) to the indenture dated as of February 18, 2026, under which the Notes were issued (the “ Indenture ”), pursuant to the terms and subject to the conditions set forth in the Consent Solicitation Statement, dated September 11, 2026 (the “ Consent Solicitation Statement ”). Any capitalized terms used in this press release without definition have the respective meanings assigned to such terms in the Consent Solicitation Statement.

A welcome email is on its way. If you don't see it, please check your junk folder.

As previously announced, on August 5, 2026, the Company entered into a Share Sale and Purchase Agreement (as it may be amended from time to time in accordance with its terms, the “ Share Purchase Agreement ”) with Établissements Maurel et Prom S.A., a company organized and existing under the laws of France (“ M&P ”), Maurel & Prom Andina S.A.S., a company organized and existing under the laws of France and an indirect wholly owned subsidiary of M&P (“ Purchaser ”), and the other parties thereto, whereby, among other things, Gran Tierra Energy International Holdings GmbH, a company organized and existing under the laws of Switzerland and an indirect wholly owned subsidiary of the Company, has agreed to sell all of the issued and outstanding equity interests of Gran Tierra Energy CI GmbH, a company organized and existing under the laws of Switzerland and an indirect wholly owned subsidiary of the Company (“ GTECI ”), to Purchaser (the transactions contemplated by the Share Purchase Agreement, the “ Sale ”).