The sources conveyed the information to Reuters.

On September 26, Chevron had stated that it had received interest from a potential buyer for it 40% stake in one of Britain’s biggest oil and gas developments.

The sale of its 40% stake in the Rosebank project would mark Chevron’s complete exit from the aging basin after it launched the sale of its other fields in the area earlier this year. It remained unclear however, if the San Ramon, California- based company was interested in selling out of the project – which is yet to be approved for development.

Without elaborating, the spokeswoman said: “Chevron can confirm it has received an expression of interest for its share in the Rosebank project.”

The Rosebank project, located some 130 km (80 miles) northwest of the Shetlands in seas over a kilometer deep, would be one of the biggest new fields in the UK North Sea. With overall reserves estimated at around 300 million barrels of oil, it could help boost the basin’s production.

Other stakeholders in the Rosebank project include Suncor Energy Inc., and privately-backed Ineos and Siccar Point Energy Ltd.– which is seeking buyers for at least 50% of its stake in the project.

Equinor declined to comment on the matter.