Interim Results for the Three Months Ended 30 June 2026

About this update from Sintana Energy Inc.

TORONTO, ON AND LONDON, UK / ACCESS Newswire / August 27, 2026 / Sintana Energy Inc. (TSX-V:SEI)(AIM:SEI)(OTCQX:SEUSF) (" Sintana " or the " Company "), an international oil and gas upstream exploration company, is pleased to announce that it has filed its interim financial statements for the three months ended 30 June and the accompanying Management's Discussion and Analysis (" MD&A ").The interim financial statements and accompanying MD&A for the three months ended 30 June 2026 are available on the Canadian System for Electronic Document Analysis and Retrieval (" SEDAR+ ") at www.sedarplus.ca and on Sintana's website at https://sintanaenergy.com For further information, please contact: Sintana Energy Inc Robert Bose, Chief Executive Officer Eytan Uliel, President Tel: +44 (0)7 747 845 987 Zeus - Nomad and Joint Broker Antonio Bossi / Darshan Patel / George Duxberry Simon Johnson (Broking) Tel: +44 (0) 20 3829 5000 Stifel - Joint Broker Callum Stewart / Simon Mensley Ashton Clanfield (Broking) Tel: +44 (0) 20 7710 7600 Jonathan Paterson - Investor Relations [email protected] Tel: +1 475 477 9401 CAMARCO - Financial PR Billy Clegg / Georgia Edmonds / Sam Morris Tel: +44 (0) 20 3757 4980 About Sintana Energy Sintana Energy is an Atlantic Margin-focused oil and gas company, holding interests in a diverse portfolio of high-impact assets that spans the Southern Atlantic conjugate margin. The Company's current portfolio is strategically positioned in the emerging frontier geographies of Namibia, Uruguay and Angola, with additional legacy assets in Colombia and The Bahamas. Led by an experienced team, Sintana Energy is partnered with major industry players, and benefits from significant carry support, on key licenses across multiple jurisdictions. Sintana Energy is listed on the TSX-V in Canada under the symbol "SEI", in the United Kingdom on the LSE-AIM under the symbol "SEI" and in the U.S. on the OTCQX under the symbol "SEUSF". For further information, please visit sintanaenergy.com NEITHER THE TSX VENTURE EXCHANGE NOR ITS REGULATION SERVICES PROVIDER (AS THAT TERM IS DEFINED IN THE POLICIES OF THE TSX VENTURE EXCHANGE) ACCEPTS RESPONSIBILITY FOR THE ADEQUACY OR ACCURACY OF THIS RELEASE. SOURCE: Sintana Energy Inc. View the original press release on ACCESS Newswire

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