Mr. Gary Guidry reports

GRAN TIERRA ENERGY INC. PROVIDES RELEASE DATE FOR ITS 2025 SECOND QUARTER RESULTS

Gran Tierra Energy Inc. will release its 2025 second quarter financial and operating results on Wednesday, July 30, 2025, postmarket. Gran Tierra will host its second quarter 2025 results conference call on Thursday, July 31, 2025, at 9 a.m. Mountain Time (11 a.m. Eastern Time).

How to participate in the 2025 second quarter conference call

Interested parties may register for the 2025 second quarter conference call on-line. Please note that there is no longer a general dial-in number to participate and each individual party must register on-line. Once parties have registered, they will be provided with a unique PIN (personal identification number) and call-in details. There is also a new 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 a link that is available on Gran Tierra's website. An audio replay of the conference call will be available at the same webcast link for two hours following the call and will be available until July 31, 2026.

About Gran Tierra Energy Inc.

Gran Tierra, 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 currently developing its existing portfolio of assets in Canada, Colombia and Ecuador, and 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.