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California 

Oxy is California’s largest natural gas producer and the state's largest oil and gas producer on a gross-operated barrels of oil equivalent basis. In addition, the company is the largest mineral acreage owner (leasehold and fee) in the state with approximately 2.1 million net acres.

Oxy’s California flagship operation is the Elk Hills Field in Kern County. Other significant California operations include Oxy’s interests in the giant Wilmington Field located in Long Beach, as well as interests in more than 125 fields primarily located in the San Joaquin, Ventura and Sacramento basins. Oxy has other operations in the Los Angeles Basin area, including the Huntington Beach Field.

Oxy gained significant experience with shale production following the 1998 acquisition of the Elk Hills Field in Kern County. This prolific oilfield contains a number of shale zones — porous rock that contains hydrocarbons but has little permeability. Oil and gas in such formations require stimulation or special recovery processes to flow.

Development projects in many of the fields in California use enhanced oil recovery (EOR) techniques such as waterflood and thermal steam floods. New technology applications and sophisticated portfolio planning are key components of Oxy’s success.

Oxy’s California operations at the Elk Hills, Pleito, North Shafter and Kern Front oilfields have been honored by the Department of Conservation’s Division of Oil, Gas and Geothermal Resources (DOGGR) for consistently demonstrating oilfield practices of maintaining operations above the standards set by the California Code of Regulations.