November 3, 2025. Leads & Copy —
TORONTO, Nov. 03, 2025 — Sintana Energy Inc. has reached a milestone in its proposed all-share acquisition of Challenger Energy Group plc, with a Scheme Document detailing the acquisition sent to Challenger shareholders.
The acquisition is driven by diversification, exposure to Uruguay, and expanding Sintana’s partnership with Chevron. Diversification is key due to progress in Namibia. Uruguay’s offshore licenses, now including Shell and Chevron, show potential. The Challenger acquisition also broadens Sintana’s Chevron partnership to Uruguay’s offshore license OFF-1.
The timing is driven by the companies’ ability to complete the complex acquisition of an AIM-listed company in the UK, and the concurrent process to list Sintana on AIM, expected by Q4 2025.
A special committee, guided by UK and Canadian counsel, managed conflicts of interest, with Robert Bose recused from voting. Charlestown holds about 5.7% of Sintana’s shares, with Robert holding additional shares and options, totaling about C$15MM. Charlestown also committed a US$4MM working capital facility.
Canadian securities regulators are reviewing the transaction, ensuring adherence to regulatory requirements to protect shareholders. More communications are forthcoming via the company’s website and investor links.
Keith Spickelmier, Executive Chairman; Robert Bose, Chief Executive Officer
Robert Bose
Chief Executive Officer
212-201-4125
Jonathan Paterson
Founder & Managing Partner
Harbor Access
475-477-9401
The Company is engaged in petroleum and natural gas exploration and development activities in six petroleum exploration licenses in Namibia, including 5 offshore located variously in the Orange and Walvis Basins, as well as in Colombia’s Magdalena Basin. Additionally, upon completion of a previously announced transaction, Sintana will have exposure to a license in Angola’s emerging onshore Kwanza Basin. Sintana’s strategy is to acquire and manage a portfolio of exposures to superior quality assets with substantial value potential.
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
Source: Sintana Energy, Inc.
