Exxon Mobil Corporation engages in the exploration, production, transportation, and sale of crude oil and natural gas. Exxon Mobil Corp. company also engages in the manufacture of petroleum products, and transportation and sale of crude oil, natural gas, and petroleum products. Exxon Mobil Corp. manufactures and markets commodity petrochemicals, including olefins, aromatics, polyethylene and polypropylene plastics, and other specialty products. The company also has interests in electric power generation facilities. As of December 31, 2008, Exxon Mobil Corp. operated 16,286 gross wells. Exxon Mobil Corporation primarily operates in the United States, Canada, Europe, Africa, the Asia Pacific, the Middle East, Russia/Caspian region, and South America. Exxon Mobil Corp. was formerly known as Exxon Corporation and changed its name to Exxon Mobil Corporation in November 1999. Exxon Mobil Corporation was founded in 1870 and is based in Irving, Texas.