MRO vs OXY

Marathon Oil Corporation

Marathon Oil Corporation operates as an independent exploration and production company in the United States and Equatorial Guinea. The company engages in the exploration, production, and marketing of crude oil and condensate, natural gas liquids, and natural gas; and the production and marketing of products manufactured from natural gas, such as liquefied natural gas and methanol, as well as owns and operates 32 central gathering and treating facilities and the Sugarloaf gathering system, a 42-mile natural gas pipeline through Karnes and Atascosa Counties. As of December 31, 2020, it had estimated proved developed reserves totaling 674 million barrels of oil equivalent (mmboe); and estimated proved undeveloped reserves totaling 298 mmboe. 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.

Occidental Petroleum Corporation

Occidental Petroleum Corporation, together with its subsidiaries, engages in the acquisition, exploration, and development of oil and gas properties in the United States, the Middle East, Africa, and Latin America. The company operates through three segments: Oil and Gas, Chemical, and Marketing and Midstream. The company's Oil and Gas segment explores for, develops, and produces oil and condensate, natural gas liquids (NGLs), and natural gas. Its Chemical segment manufactures and markets basic chemicals, including chlorine, caustic soda, chlorinated organics, potassium chemicals, ethylene dichloride, chlorinated isocyanurates, sodium silicates, and calcium chloride; vinyls comprising vinyl chloride monomer, polyvinyl chloride, and ethylene. The company's Midstream and Marketing segment gathers, processes, transports, stores, purchases, and markets oil, condensate, NGLs, natural gas, carbon dioxide, and power. This segment also trades around its assets consisting of transportation and storage capacity; and invests in entities. Occidental Petroleum Corporation was founded in 1920 and is headquartered in Houston, Texas.