Marathon Oil Corporation operates as an energy company worldwide. The company operates in three segments: Exploration and Production, Oil Sands Mining, and Integrated Gas. The Exploration and Production segment explores for, produces, and markets liquid hydrocarbons and natural gas in the United States, Angola, Canada, Equatorial Guinea, Indonesia, the Iraqi Kurdistan Region, Libya, Norway, Poland, and the United Kingdom. The Oil Sands Mining segment mines, extracts, and transports bitumen from oil sands deposits in Alberta, Canada; and upgrades the bitumen to produce and market synthetic crude oil and vacuum gas oil. As of December 31, 2011, it had rights to participate in developed and undeveloped leases totaling approximately 43,000 net acres. The Integrated Gas segment produces and markets various products that are manufactured from natural gas, such as LNG and methanol. The company was formerly known as USX Corporation and changed its name to Marathon Oil Corporation in July 2001. Marathon Oil Corporation was founded in 1887 and is headquartered in Houston, Texas.

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