SEI Sintana Energy Inc

Sintana Energy Inc. (TSX-V: SEI, OTCQB: SEUSF) (“Sintana” or the “Company”) is pleased to provide the following further update regarding the second campaign on blocks 2813A and 2814B located in the heart of Namibia’s Orange Basin. The blocks are governed by Petroleum Exploration License 83 (“PEL 83”) which is operated by a subsidiary of Galp Energia, SGPS, S.A. (“Galp”). Sintana maintains an indirect 49% interest in Custos Energy (Pty) Ltd. (“Custos”), which owns a 10% working interest in PEL 83. NAMCOR, the National Petroleum Company of Namibia, also maintains a 10% working interest.

With reference to Galp’s corporate website (at galp.com) and updates provided therein in addition to a release from Custos (available at newswire.com), we are pleased to announce that the PEL 83 Joint Venture partners have successfully drilled, cored and logged the Mopane-3X well (Well #5) on PEL 83, which spud on January 2nd, 2025.

Mopane-3X, located 18km from the Mopane-1X well, targeted two stacked prospects, AVO-10 and AVO- 13, as well as a deeper sand, in the southeast region of the Mopane complex at an approximate water depth of 1,200 meters.

Preliminary data has confirmed significant columns of light oil and gas-condensate in high-quality sandstones across AVO-10. Further, the presence of light oil columns was confirmed in AVO-13 and the deeper sand, again in high-quality sandstones.

Reservoir log measures confirm good porosities, high pressures and high permeabilities. Initial fluid samples show low oil viscosity and minimum CO2 and H2S concentrations. Samples have been sent for lab testing.

Higher-than-estimated pressures and preliminary results at Mopane 3X unlock further exploration and appraisal opportunities in the southeast region of the Mopane complex. All acquired data will be integrated into the reservoir model and support the planning of potential further activities.

The proprietary 3D development seismic acquisition campaign is on track to be completed in Q125, with processing of the data acquired to follow.

“These additional discoveries in an entirely new section further demonstrate the scale and quality of the Mopane complex.” said Robert Bose, Chief Executive Officer of Sintana. “Our exposure to this world class asset together with the balance of our portfolio give us an unmatched position in the heart of Namibia’s Orange Basin.” he added.

“The stacked discoveries in this most recent exploration program at Mopane are emblematic of the size and potential of the complex.” said Knowledge Katti, Chairman and Chief Executive Officer of Custos and a director of Sintana. “We congratulate our Joint Venture partners on another safe and successful outing.” he added.

ABOUT SINTANA ENERGY:

The Company is engaged in petroleum and natural gas exploration and development activities on six large, highly prospective, onshore and offshore petroleum exploration licenses in Namibia, and in Colombia’s Magdalena Basin.

On behalf of Sintana Energy Inc.,

“A. Robert Bose”Chief Executive Officer

For additional information or to sign-up to receive periodic updates about Sintana’s projects, and corporate activities, please visit the Company’s website at www.sintanaenergy.com

Corporate Contacts:		Investor Relations Advisor:
Robert Bose	Sean Austin	Jonathan Paterson
Chief Executive Officer	Vice-President	Founder & Managing Partner
212-201-4125	713-825-9591	Harbor Access
		475-477-9401

Forward-Looking Statements

Certain information in this release are forward-looking statements. Forward-looking statements consist of statements that are not purely historical, including statements regarding beliefs, plans, expectations or intensions for the future, and include, but not limited to, statements with respect to potential future farmout agreements on PEL 83 and/or PEL 87, and proposed future exploration and development activities on PEL 83 and/or PEL 90 and neighbouring properties, as well as the prospective nature of the Company’s property interests. Such statements are subject to risks and uncertainties that may cause actual results, performance or developments to differ materially from those contained in the statements, including, but not limited to risks relating to the receipt of all applicable regulatory approvals, results of exploration and development activities, the ability to source joint venture partners and fund exploration, permitting and government approvals, and other risks identified in the Company’s public disclosure documents from time to time. Readers are cautioned that the assumptions used in the preparation of such information, although considered reasonable at the time of preparation, may prove to be imprecise and, as such, undue reliance should not be placed on forward-looking statements. The Company assumes no obligation to update such information, except as may be required by law.

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.

An infographic accompanying this announcement is available at https://www.globenewswire.com/NewsRoom/AttachmentNg/9b09d852-01f1-4a7b-83ac-0ca264f297c4