Occidental Petroleum Corporation. The Group's principal activity is to explore for, develop,produce and market crude oil and natural gas.The operations are carried out through two segments:Oil and Gas and Chemical. The Oil and Gas segment develops,explores for,produces and markets crude oil and natural gas.The Group's domestic oil and gas operations ... More

Occidental Petroleum Corporation. The Group's principal activity is to explore for, develop,produce and market crude oil and natural gas.The operations are carried out through two segments:Oil and Gas and Chemical. The Oil and Gas segment develops,explores for,produces and markets crude oil and natural gas.The Group's domestic oil and gas operations are located inElk Hills includes the Elk Hills oil and gas field in the southern portion of California's San Joaquin Valley.The Chemical segment manufactures and markets basic chemicals,vinyls and performance chemicals. Basic chemicals include chlorine, caustic soda, potassium chemicals and their derivatives.The Group operates in the United States, Colombia, Ecuador, Oman, Pakistan, Qatar, Russia, the United Arab Emirates and Yemen and other countries.