Mr. A. Robert Bose reports

CHEVRON ENTRY INTO PEL 82

Chevron Namibia Exploration Ltd. (CNEL), an affiliate of Chevron Corp., has executed an agreement, effective April 28, 2024, that provides for its entry into petroleum exploration licence 82 (PEL 82) with the assumption of an 80-per-cent working interest and operatorship. NAMCOR (the National Petroleum Corp. of Namibia) and Custos Energy Pty. Ltd. will each maintain a 10-per-cent carried interest in PEL 82. Sintana Energy Inc. maintains an indirect 49-per-cent interest in Custos.

PEL 82 governs blocks 2112B AND 2212A located in the Walvis Basin, offshore Namibia. PEL 82 is one of the Walvis Basin's most attractive opportunities.

Approximately 70% of total block area is covered by existing seismic - over 3,500 km of 2D and 9,500 km2 of 3D data.

Previous drilling activity on PEL 82 includes the Murombe-1 and Wingat-1 wells.

Results confirmed the regional extension and presence of the Barremian-Aptian oil-prone source rock (Kudu shale).

The Murombe-1 penetrated the Baobab sands returning approximately 20% porosity.

The Wingat-1 well recovered 38-41 degree API oil to surface.

"We are pleased to announce the continuing expansion of our in-country partnership with Chevron through their entry in PEL 82. This is one of the most advanced and interesting opportunities offshore Namibia outside of the Orange Basin," said Knowledge Katti, Chairman and Chief Executive Officer of Custos, and a director of Sintana. "We are pleased to see our efforts over the last decade on PEL 82 result in this important step forward adding further to Namibia's world class offshore opportunity," he added.

"The expanding partnership with Chevron in Namibia speaks to the quality of our Namibian portfolio," said Robert Bose, CEO and Board Member of Sintana. "The timeliness of our entry and the unmatched nature of our portfolio continue to be demonstrated as Namibia emerges as the world's next great hydrocarbon province," he added.

In conjunction with the farm-in, Custos is pleased to announce that it has entered into a co-operation agreement with the Walvis Bay Poverty Reduction Trust ("WBPRT") providing that the WBPRT will be the primary beneficiary of Custos's corporate social responsibility efforts.

ABOUT SINTANA ENERGY:

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

We seek Safe Harbor.