Peter Dey Announces Retirement from Gran Tierra’s Board of Directors

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CALGARY, Alberta, June 20, 2025 (GLOBE NEWSWIRE) -- Gran Tierra Energy Inc. (“Gran Tierra” or the “Company”) (NYSE American: GTE)(TSX: GTE)(LSE: GTE) today announced that, for personal reasons, Peter Dey will be stepping down from the Board of Gran Tierra at the end of June 2025. Peter has agreed to make himself available to consult with the Board as required until the end of 2025 while a search is conducted for a replacement director.

“On behalf of the Board of Directors of Gran Tierra, I want to thank Peter for his leadership and guidance since 2015,” said Bob Hodgins, Chairman of Gran Tierra Energy Inc.

“We have worked with Peter for almost 15 years across multiple companies and continents. Peter is a distinguished expert in board governance, and his broad commercial background and strategic input have been instrumental in navigating a volatile and evolving industry,” said Gary Guidry, CEO of Gran Tierra Energy Inc.

About Gran Tierra Energy Inc.

Gran Tierra Energy Inc., 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. Additional information concerning Gran Tierra is available at www.grantierra.com. Except to the extent expressly stated otherwise, information on the Company’s website or accessible from our website or any other website is not incorporated by reference into and should not be considered part of this press release. Investor inquiries may be directed to [email protected] or (403) 265-3221.

Gran Tierra’s filings with the U.S. Securities and Exchange Commission (the “SEC”) are available on the SEC website at http://www.sec.gov. The Company’s Canadian securities regulatory filings are available on SEDAR+ at http://www.sedarplus.ca and UK regulatory filings are available on the National Storage Mechanism website at https://data.fca.org.uk/#/nsm/nationalstoragemechanism.

Contact Information

For investor and media inquiries please contact:

Gary Guidry
President & Chief Executive Officer

Ryan Ellson
Executive Vice President & Chief Financial Officer
+1-403-265-3221
[email protected]