London-based BP is the third-largest integrated oil major behind ExxonMobil and Royal Dutch Shell. BP's business began in 1909 and evolved to its current form and name after the 1998 merger of British Petroleum and Amoco. BP operates across six continents, producing 3.8 million barrels of oil equivalent per day in 2008, operating refineries with 2.8 million barrels per day of capacity, operating petrochemical plants, and selling petroleum through 24,100 service stations.
