Subsea7 wins Equatorial Guinea tieback contract for Chevron gas project

April 01, 2026

(WO) — Subsea7 has been awarded a subsea installation contract for the Aseng Gas Monetization Project offshore Equatorial Guinea, supporting development of a single-well tieback to existing infrastructure.

The contract was issued by Noble Energy EG Ltd., a subsidiary of Chevron, and covers installation work linking the Aseng field to the Alen platform.

Scope includes the transport and installation of approximately 19 kilometers (about 12 miles) of rigid production flowline and 20 kilometers (about 12.4 miles) of umbilicals, along with associated subsea structures and tie-ins. The work will be carried out in water depths of around 800 meters (about 2,625 feet).

Project management and engineering activities are set to begin immediately, led from Subsea7’s Paris office with support from teams in Lisbon and Equatorial Guinea. Offshore operations are expected to start in 2026.

“This award represents an important milestone in our ongoing global relationship with Chevron," said David Bertin, Senior Vice President for Subsea7’s Global Projects Centre East. "Subsea7 has operated in Equatorial Guinea for nearly two decades, supporting offshore construction and inspection, maintenance and repair activities. We look forward to continuing our collaboration with Chevron on the Aseng Gas Monetization Project, continuing to deliver safe, high-quality offshore installation services in West Africa.”

See also: Chevron takes FID on Aseng gas monetization project offshore Equatorial Guinea

*Subsea7 classifies the contract as “substantial,” indicating a value in the range of $150 million to $300 million.

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