Occidental Petroleum Corporation (Occidental), headquartered in Houston, Texas, is one of the largest U.S. oil and gas companies, based on equity market capitalization. At year-end 2015, Occidental had approximately 35,000 employees and contractors worldwide. Occidental's exploration and production activities are concentrated in three regions: the United States, Middle East and Latin America. Occidental's midstream and marketing segment gathers, processes, transports, stores, purchases and markets hydrocarbons and other commodities. The company's wholly owned subsidiary, OxyChem, manufactures and markets polyvinyl chloride (PVC), resins, chlorine and caustic soda – key building blocks for a variety of indispensable products such as plastics, pharmaceuticals and water treatment chemicals.
At Occidental, social responsibility is fundamental to our success and reputation as a respected Partner of Choice®.