Top British North Sea producer Harbour Energy wants to sell stakes in North Sea oilfields and is reviving plans for a U.S. listing, sources said, as more firms scale back investments ahead of new tax increases on the sector.

Harbour Energy joins a growing list of oil and gas companies scaling back investments ahead of new tax increases on the sector.

In a major blow to the industry, London-listed Harbour Energy is said to be considering selling stakes in its North Sea oil fields.