BP logo is seen at a fuel station of British oil company BP in St. Petersburg, October 18, 2012. Oil major BP Plc said it doubled its stake in the Culzean gas field in the UK’s North Sea after buying an additional 16 percent interest from partner JX Nippon. Culzean, operated by Denmark’s A.P. Moeller-Maersk, is one of the largest gas fields discovered in the North Sea in more than a decade. Production at the field is expected to start in 2019, BP said. Terms of the deal were not disclosed. (Reporting by Mamidipudi Soumithri in Bengaluru; Editing by Gopakumar Warrier)