Marathon Oil Corporation, based in Houston, is an independent exploration and production company focused on significant oil-rich resource plays in the U.S. and international operations in Equatorial Guinea.
Marathon Petroleum Corporation, headquartered in Findlay, Ohio, is a leading integrated downstream energy company with the nation's largest refining system and branded retail outlets across the United States. MPC also owns and operates midstream assets through its majority interest in MPLX LP.
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