Oil & Gas Companies in California

Company NameCompany LocationCompany TypeMost Recent Production
1W. J. Hamilton OperatorOil OperatorAug 1978
2W. M. Elliott Jr.Oil & Gas OperatorDec 2009
3W. R. DudleyOil & Gas OperatorMar 2025
4Wally TuckerGas OperatorDec 1994
5Walrath Oil Co. LLCOil OperatorApr 2025
6Warren E & P IncDallas, TX 75240Oil & Gas OperatorApr 2025
7Wat Khmer Temple*Oil OperatorDec 2003
8Watt Mineral Holdings LLCOil OperatorMar 2025
9Wayne BallingerOil & Gas OperatorDec 2000
10Weaver & MolaOil OperatorDec 1990
11Weaver & WeaverOil & Gas OperatorDec 1988
12Weir Oil Co. Inc.Oil & Gas OperatorDec 2007
13Well Water ManagementOil & Gas OperatorMar 2025
14West American Energy CorporationOil & Gas OperatorApr 2025
15West Coast Oil CompanyOil OperatorDec 1996
16West Coast Operators Inc.Oil & Gas OperatorMar 2025
17West Energy Operating LLCOil & Gas OperatorMar 2025
18West Newport Oil Co.Oil & Gas OperatorMar 2025
19West Side RentalsOil & Gas OperatorMar 2025
20Western Avenue PropertiesOil & Gas OperatorDec 1993
21Western Continental Operating CompanyOil & Gas OperatorDec 2007
22Western Discovery USA Inc.Oil & Gas OperatorJan 2018
23Western Metals CorporationOil & Gas OperatorApr 2025
24Western Oil Independent LLCOil & Gas OperatorDec 2016
25Western States International Inc.Oil & Gas OperatorMar 2025
26Westside Farming Co. Inc.Gas OperatorDec 1995
27Whisler Enterprise CompanyErie, CO 80516Oil & Gas OperatorApr 2025
28White Knight Production LLCLafayette, LA 70505Oil & Gas OperatorFeb 2024
29Whiting Oil And Gas CorporationHouston, TX 77002Oil & Gas OperatorJun 2025
30Whiting Petroleum CorporationDenver, CO 80290Oil & Gas OperatorJan 2025
31Wilco-Placentia Oil Operator LLCOil & Gas OperatorApr 2025
32Wild Goose Storage LLCGas OperatorApr 2025
33William K. Barker & AssociatesOil & Gas OperatorDec 1986
34Williams Oil CompanyMidland, TX 79710Oil & Gas OperatorJun 2025
35Windrush Operating Co., L.L.C.Longville, LA 70652Oil & Gas OperatorJun 2025
36WM. H. Brayton TrustOil & Gas OperatorDec 2000
37Woodward PetroleumOil & Gas OperatorDec 2003
38Worldwide Energy Corp.Freer, TX 78357Oil & Gas OperatorJan 1997