Mr. Gary Guidry reports

GRAN TIERRA ENERGY INC. PROVIDES RELEASE DATE FOR ITS 2026 THIRD QUARTER RESULTS

Gran Tierra Energy Inc. will release its 2026 third quarter financial and operating results on Thursday, Nov. 5, 2026, postmarket. Gran Tierra will host its third quarter 2026 results conference call on Friday, Nov. 6, 2026, at 9 a.m. Alberta time (10 a.m. Eastern Time) (3 p.m. Greenwich Mean Time).

How to participate in the 2026 third quarter conference call

Interested parties may register for the 2026 third quarter conference call on-linle. Please note that there is no longer a general dial-in number to participate and each individual party must register. Once parties have registered, they will be provided a unique PIN (personal identification number) and call-in details. There is also a feature that allows parties to elect to be called back through the call me function on the platform.

Interested parties can also continue to access the live webcast from their mobile or desktop devices by clicking on a link that is available on Gran Tierra's website. An audio replay of the conference call will be available two hours following the call and will be available until Nov. 6, 2027.

About Gran Tierra Energy Inc.

Gran Tierra Energy, together with its subsidiaries, is an independent international energy company currently focused on oil and natural gas exploration and production in Canada, Colombia and Ecuador. The company is the operator of, and holds a 65-per-cent working interest in, an onshore exploration, development and production sharing agreement in Azerbaijan. Upon completion of the previously announced sale of its Colombian and Ecuadorian businesses, the company's operations will be focused on Canada and Azerbaijan, and the company will continue to pursue additional new growth opportunities that would further strengthen the company's portfolio. The company's common stock trades on the NYSE American, the Toronto Stock Exchange and the London Stock Exchange under the ticker symbol GTE.