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'''BP''' is a global oil, gas and chemical company headquartered in Britain and responsible for the largest environmental disaster ever in the United States, the April 20, 2010, blow out of its Deep Horizon oil well in the Gulf of Mexico (see below). The company owns numerous refineries and chemical manufacturing plants around the world. [http://www.bp.com/sectiongenericarticle.do?categoryId=3&contentId=2006926] BP is the United Kingdom's largest corporation.{{fact}} Its global headquartered are in London, and its U.S. hq is Houston, Texas. Its major brands include BP, AmPm, Arco, and Castrol.{{fact}}