Oxy Energy Marketing, a part of Occidental Petroleum Corporation, specializes in marketing products for its parent company and engages in various third-party transactions. Occidental Petroleum Corporation is an international oil and gas exploration and production company. The parent company is also one of the leading manufacturers of chemical in North America. It employs more than 9,000 staff members in over various continents. The parent company has oil and natural gas exploration and production operations in the United States, Middle East, North Africa and Latin America. Its various other business units gathers, processes, transports, stores and markets crude oil, natural gas, natural gas liquids and carbon dioxide. OxyChem, a subisidiary of Occidental Petroleum Corporation, specializes in the manufacture of chlorine, caustic soda and polyvinyl chloride.