Interim Results for the Three Months Ended 30 June 2026

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

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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.

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