Business Sectors
Business Sectors
Events
Contents
HamiltonJet LTX53: Greater control where offshore wind crews need it mostSponsored by HamiltonJet
Register to read more articles.
Subsea7 wins Norwegian, US contracts
Subsea7 was awarded several contracts near the end of 2025 in Norway and the US Gulf that will sustain vessel operations for several years
ConocoPhillips and Equinor have contracted Subsea7 to provide subsea installation, maintenance and inspection work on projects aimed at extending production.
During the second half of December 2025, Subsea7 won several contracts in Norway and one in the US for a deepwater development.
For the largest of these contracts, Subsea7 will support ConocoPhillips in redeveloping a previously producing oil field in the Greater Ekofisk area of the North Sea.
Subsea7’s workscope covers engineering, procurement, construction and installation (EPCI) of subsea structures, umbilicals, risers and flowlines (SURF). This EPCI contract is valued at between US$300M and US$500M and will involve offshore operations in 2027 and 2028 in an area 290 km southwest of Stavanger, Norway.
Its award followed Subsea7 completing front-end engineering and design (FEED) work for this project, and engineering has already begun in Subsea7’s office in Norway.
“The FEED study enabled Subsea7 to engage early in the field development process, optimising design solutions and contributing to the final investment decision,” said Subsea7 Norway vice president Erik Femsteinevik.
Subsea7 said this contract is subject to the authority approval of ConocoPhillips’ plan for development and operations. According to ConocoPhillips, this plan will be submitted to the Ministry of Energy in Q1 2026.
The US oil major took its final investment decision for joint redevelopment of the Albuskjell, Vest Ekofisk, and Tommeliten Gamma fields in December 2025 to recover between 90M and 120M barrels of oil equivalent resources in a US$1.8Bn project.
"The joint development concept includes 11 wells and four new subsea templates; all tied back to the Ekofisk Complex via a shared multiphase pipeline, with first gas scheduled for Q4 2028," said ConocoPhillips.
In another contract, valued between US$50M and US$150M, Subsea7 is supporting Equinor’s maintenance strategy for seabed infrastructure and wells across the Norwegian continental shelf.
This is an extension to a frame agreement Subsea7 has with the Norwegian state-run energy group for subsea inspection, maintenance and repair services (IMR) using vessel Seven Viking. Under the terms of the extension, to the end of 2027, Seven Viking will carry out IMR services while project management and engineering work will continue to be managed from Subsea7’s office in Stavanger.
On 19 December, Subsea7 announced it won a contract, also valued between US$50M and US$150M, to support a future oil development in the Norwegian sector of the North Sea. This involves pre-execution project management and engineering work and procurement of long-lead equipment before the unnamed client commits to the development.
In the US Gulf, Subsea7 won a contract, again valued between US$50M and US$150M, from LLOG Exploration Offshore covering the Buckskin South expansion project. Subsea7’s scope of work includes transporting and installing SURF infrastructure in water depths of up to 2,100 m, with offshore operations scheduled for 2026 and 2027.
Riviera’s OSJ Subsea Conference will be held in London on 2 February 2026. Use this link for more information and to register for the event.
Related to this Story
Events
Maritime Regulations Webinar Week
16 Dec 2025
GMT - ONLINE
Floating energy: successfully unlocking stranded gas using FLNGs and FSRUs
24 Feb 2026GMT - ONLINE
© 2026 Riviera Maritime Media Ltd.
