Oilfield services firm Petrofac has won a three year contract from Maersk Oil.The contract, worth more than £40m, is for the provision of engineering services to the UK Continental Shelf assets of Maersk, specifically the Gryphon, Janice, and Global Producer III assets.This contract extends both Petrofac's working relationship with Maersk Oil and its scope of services for these assets, building upon the offshore operations and support services it has been providing since 2000.