Equinor and partners invest to raise Troll gas output

Norway

STAVANGER, June 22, 2026 – Equinor and partners Petoro, Shell, TotalEnergies and ConocoPhillips have approved an investment of approximately USD 410 million in a new subsea development to increase gas production from the Troll field in the North Sea, Equinor announced on Friday.

The Troll West Increased gas recovery North (TWIN) project is expected to add approximately 11 bcm (388.5 bcf) of gas production and is the third step under the Troll phase 3 expansion, which Equinor launched in 2021 to produce from the Troll West gas cap through tie-backs to the Troll A platform.

“We have an ambition to start production as early as 2028. By simplifying, increasing standardisation and reusing existing infrastructure and equipment, we are reducing costs and enabling faster production, in line with our new ways of working,” said Gunnar Nakken, Equinor’s senior vice-president for projects and subsea, Norway.

The project includes two wells in a template and a pipeline connected to existing subsea facilities. Troll is located about 65 kilometres west of Kollsnes and is one of the largest fields on the Norwegian continental shelf.

“Our fields are ageing, new discoveries are smaller, and costs are increasing. Our ambition is to halve costs and execution time for our subsea projects and develop six to eight such projects per year towards 2035,” added Nakken.

Equinor operates the project with a 30.55% stake, with Petoro holding 55.93%, Shell 8.19%, TotalEnergies EP Norge 3.69% and ConocoPhillips Skandinavia 1.64%.