Sintana Energy advances offshore exploration projects in Uruguay and Argentina

Sintana Energy (LSE:SEI) has reached two important milestones in its Latin American offshore exploration portfolio, securing additional time for seismic work in Uruguay while progressing a new exploration opportunity in Argentina. The developments strengthen the company’s presence across emerging offshore basins and support its long-term exploration strategy in the South Atlantic region.

In Uruguay, authorities have approved a one-year suspension of the initial exploration sub-period for the AREA OFF-1 offshore licence, extending the deadline to 23 August 2027. The extension follows delays in obtaining environmental approvals for a planned 3D seismic survey and provides operator Chevron with additional time to complete a two-season programme of seismic acquisition, processing and interpretation. The work is expected to improve the understanding of the block’s resource potential and help optimise future drilling decisions while reducing exploration risk.

Meanwhile, in Argentina, Sintana’s affiliate Challenger Energy Group has advanced its plans in the North Argentine Basin after initiating an International Public Tender for the CAN-200 offshore exploration permit. The process follows the publication of Decree 590/2026 and Challenger’s earlier expression of interest submitted in 2025. If successful, the tender would expand Sintana’s offshore exploration portfolio in Latin America and further strengthen its exposure to frontier hydrocarbon basins with long-term development potential.

About Sintana Energy

Sintana Energy Inc. is an Atlantic Margin-focused oil and gas exploration company with interests in several frontier offshore basins, including Namibia, Uruguay and Angola, alongside legacy assets in Colombia and The Bahamas. The company is listed in Canada, the UK and the United States.

Sintana’s exploration strategy centres on partnering with major international energy companies and benefiting from carried interests on key licences, allowing it to pursue high-impact exploration opportunities while limiting capital exposure. Its portfolio is focused on the Southern Atlantic conjugate margin, where the company believes significant long-term hydrocarbon potential remains to be unlocked.