Maersk Oil (Danish: Mærsk Olie og Gas A/S) is a Danish oil and gas company owned by the A. P. Moller-Maersk Group. The company was established in 1962 when Maersk Group was awarded a concession for oil and gas exploration and production in the Danish sector of the North Sea. In 1986, Maersk Oil took over the operation of the Dansk Undergrunds Consortium's fields in the Danish section of the North Sea.[6] Maersk Oil is an international oil and gas company with operated production of 550,000 barrels of oil equivalent per day. Production comes from Denmark, the UK, Qatar, Kazakhstan, the US Gulf of Mexico, Algeria and Brazil. Exploration activities are on-going in Angola, Norway, Greenland, Kurdistan Region of Iraq and in the producing countries.

http://www.maerskoil.com