Occidental's domestic oil and gas operations are Elk Hills and other smaller locations in California, the Hugoton field in Kansas and Oklahoma, the Permian field in West Texas and New Mexico, and the Gulf of Mexico.
International operations are located in Colombia, Ecuador, Oman, Pakistan, Qatar, Russia, United Arab Emirates and Yemen. Occidental also has exploration interests in several other countries.

CHEMICAL OPERATIONS

Occidental manufactures and markets basic chemicals, vinyls and performance chemicals directly and through various affiliates (collectively, OxyChem).
OxyChem's operations are affected by cyclical economic factors and by specific chemical-industry conditions.

OxyChem, which is headquartered in Dallas, Texas, operates chemical manufacturing plants at 26 sites in the United States. Many of the larger facilities are located in the Gulf Coast region of Texas and Louisiana. In addition, OxyChem operates two chemical-manufacturing plants in Canada and one in Chile. All of OxyChem's manufacturing plants are owned. A number of additional facilities process, blend and store products. OxyChem owns and leases an extensive fleet of railcars. OxyChem also has a 50-percent equity investment in a Brazilian corporation that owns a chlor-alkali plant.

BASIC CHEMICALS

OxyChem's basic chemicals consist of chlorine, caustic soda, potassium chemicals and their derivatives.
Chlorine is used for chemical manufacturing in the chlorovinyl chain and for water treatment. OxyChem produces chlorine in Alabama, Delaware, Louisiana, New York, Texas, Brazil and Chile.

Caustic soda is co-produced with chlorine and is used for pulp and paper production, alumina production and other chemical manufacturing. OxyChem produces caustic soda in Delaware, Louisiana, New York, Texas, Brazil and Chile.

Potassium chemicals are used in glass, fertilizer, cleaning products and rubber. OxyChem produces potassium chemicals in Alabama and Delaware.

VINYLS

OxyChem's principal producer of vinyls is its 76-percent interest in the OxyVinyls partnership. OxyChem's vinyls products include polyvinyl chloride (PVC) and its precursors, VCM and EDC.

PVC resins are used in piping, electrical insulation, external construction materials, flooring, medical and automotive products and packaging. OxyChem produces PVC resins in Kentucky, New Jersey, Pennsylvania, Texas and Canada.

PERFORMANCE CHEMICALS

OxyChem's performance chemicals include chlorinated isocyanurates, resorcinol, antimony oxide, mercaptans and sodium silicates.