Berkshire buys shares -Occidental Petroleum Corporation (OXY), together with its subsidiaries, engages in the acquisition, exploration, and development of oil and gas properties in the United States and internationally. The company operates through three segments: Oil and Gas, Chemical, and Midstream and Marketing. The Oil and Gas segment explores for, develops, and produces oil and condensate, natural gas liquids (NGLs), and natural gas. The 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 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. The company has strategic partnership with Ecopetrol S.A. Occidental Petroleum Corporation was founded in 1920 and is headquartered in Houston, Texas.
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