Subsea7 has secured a major offshore engineering contract from US independent ConocoPhillips for a new subsea development in Norway, following the project’s final investment decision earlier this year.
The contract, valued between $300 million and $500 million, supports ConocoPhillips’ recently sanctioned $1.8 billion subsea tie-back development within Norway’s Previously Produced Fields (PPF) area. The project marks a significant reinvestment in mature North Sea infrastructure, leveraging existing facilities to unlock new production.
Under the agreement, Subsea7 will deliver full engineering, procurement, construction and installation (EPCI) services covering subsea structures, umbilicals, risers and flowlines (SURF). Engineering and project management activities will begin immediately in Norway, with offshore installation campaigns scheduled for 2027 and 2028.
The PPF development is located in the Greater Ekofisk area, around 290 kilometres southwest of Stavanger. It includes four new subsea templates and 11 production wells tied back to the Ekofisk complex, one of the North Sea’s longest-producing hubs.
ConocoPhillips estimates recoverable resources from the project at 90 to 120 million barrels of oil equivalent, comprising gas and condensate. By connecting new wells to existing infrastructure, the development is expected to extend field life while optimising capital efficiency and reducing environmental impact compared with standalone facilities.
The award further strengthens Subsea7’s position in the Norwegian continental shelf, where demand for brownfield tie-backs and subsea optimisation projects remains strong as operators seek to maximise recovery from mature assets.