Marathon Oil Corp. engages in the exploration, production and marketing of liquid hydrocarbons and natural gas. It operates through the following segments: North America E&P, International E&P, and Oil Sands Mining. The North America E&P segment engages in the explores for, produces, and markets crude oil and condensate, natural gas liquids (NGL), and natural gas in the United States. The International E&P segment involves exploration, production, and marketing of crude oil and condensate, NGL and natural gas outside of North America; and production and marketing of products manufactured from natural gas such as liquefied natural gas and methanol in Equatorial Guinea. The Oil Sands segment includes mining, extraction, and transport of bitumen from oil sands deposits in Alberta, Canada, and the upgrade of bitumen to produce and market synthetic crude oil and vacuum gas oil. The company was founded in 1887 and is headquartered in Houston, TX.