Oil & Gas Companies in California

Company NameCompany LocationCompany TypeMost Recent Production
125 Hill Properties Inc.Oil OperatorApr 2025
2260 Resource Management LLCGas OperatorApr 2025
3261 Resource Management LLCGas OperatorApr 2025
43MB Oil & Gas LLCIrvine, CA 92616Oil & Gas OperatorApr 2025
54H Oil Co.Oil OperatorDec 1992
6A. J. HayesOil & Gas OperatorDec 1998
7A. L. & V. I. GraysonOil OperatorDec 1993
8A. S. Johnston Drilling Corp.Oil & Gas OperatorDec 1987
9A.L.S. Resources Inc.Oil OperatorDec 2004
10Aa Production Services Inc.Gas OperatorApr 2025
11Aalpha Energy Inc.Oil & Gas OperatorMay 2025
12Aba Energy CorporationOil & Gas OperatorMay 2025
13ABC Oil Co.Wichita Falls, TX 76301Oil & Gas OperatorOct 2023
14Abe GiesbrechtGas OperatorDec 1983
15Adco LTD.Oil & Gas OperatorDec 1983
16Aera Energy LLCOil & Gas OperatorMay 2025
17Agey Petroleum Co.Oil & Gas OperatorDec 1998
18Alanmar EnergyGas OperatorJan 2018
19Alexander Oil Co.Loco, OK 73442-9409Oil & Gas OperatorJun 2025
20Allenco Energy Inc.Oil & Gas OperatorApr 2025
21Allied Energy CorporationOil & Gas OperatorApr 2025
22Allied Western PetroleumOil & Gas OperatorApr 2025
23Almond Crest Oil LLCOil & Gas OperatorApr 2025
24Amerada Hess Corp. Unit OperatorOil & Gas OperatorDec 1986
25Amerada Hess CorporationHouston, TX 77252Oil & Gas OperatorAug 2013
26American Barter Petroleum Inc.Oil & Gas OperatorJun 1993
27Ample Resources Inc.Oil & Gas OperatorApr 2025
28Amrich Energy Inc.Oil & Gas OperatorApr 2025
29Anacapa Oil CorporationGas OperatorApr 2025
30Anadime Energy Services Inc.Oil & Gas OperatorDec 2009
31Ancora-Verde CorporationOil & Gas OperatorDec 2004
32Andrew L. NewkirkOil OperatorApr 2025
33Angus Petroleum CorporationChicago, IL 60660Oil & Gas OperatorDec 2022
34Ann BrindleOil OperatorApr 2025
35Ann Marie TiersOil OperatorDec 1996
36Anschutz Exploration CorporationDenver, CO 80202Oil & Gas OperatorJul 2025
37Anterra Energy Services Inc.Oil & Gas OperatorApr 2025
38Anterra Services Inc.Oil & Gas OperatorApr 2025
39Apache CorporationHouston, TX 77042Oil & Gas OperatorJul 2025
40Apc Operating PartnershipTulsa, OK 74136Oil & Gas OperatorOct 1996
41Arcady Oil CompanyGas OperatorDec 1989
42Archer Operations California LLCGas OperatorApr 2025
43Arco Oil & Gas CompanyPlano, TX 75086Oil & Gas OperatorMar 2006
44Arco Western Energy Co.Oil & Gas OperatorDec 1999
45Argo Petroleum CorporationOil & Gas OperatorDec 1989
46Argosy Oil CompanyGas OperatorDec 1999
47Aristata Exploration Co.Gas OperatorDec 2009
48Arkoma Production Company Of CaliforniaOil & Gas OperatorDec 1993
49Armca Oil & Gas LLCOil OperatorMay 2025
50Armstrong Oil Inc.Oil & Gas OperatorDec 2020
51Armstrong Petroleum CorporationOil & Gas OperatorApr 2025
52Arrowhead Operating Inc.Argyle, TX 76226Oil & Gas OperatorJul 2025
53Arthur J. Arding Jr.Gas OperatorDec 1995
54Arthur McAdamsOil & Gas OperatorApr 2025
55Ashe Road Properties L.P.Oil & Gas OperatorDec 2009
56Asioco Inc.Oil & Gas OperatorJan 2018
57Aspen Exploration CorporationOil & Gas OperatorDec 2007
58Asphalta LLCOil & Gas OperatorMay 2025
59Astarta Springs Sustainable Farms LLCOil & Gas OperatorApr 2025
60Atasca Resources IncHouston, TX 77219Oil & Gas OperatorJul 2025
61Atlantic Oil CompanyOil & Gas OperatorApr 2025
62Atlantic Richfield CompanyPlano, TX 75074Oil & Gas OperatorDec 2016
63Austin Oil CompanyOil & Gas OperatorDec 2000
64Axis Petroleum Co.Oil & Gas OperatorDec 2022
65B & L Pump & Supply CompanyOil & Gas OperatorApr 2025
66B & S Oil CompanyKermit, TX 79745Oil & Gas OperatorMay 2025
67B. D. & D. Co.Gas OperatorDec 1992
68B. E. Conway Energy Inc.Oil & Gas OperatorApr 2025
69B5 Holdings LLCOil OperatorJun 2025
70Badger Oil CorporationLafayette, LA 70505Oil & Gas OperatorNov 2011
71Baker Oil And Gas CompanyGas OperatorDec 1997
72Baker-Dickey PartnershipOil OperatorDec 1992
73Bakersfield Energy Resources Inc.Oil & Gas OperatorDec 1998
74Bali Oil Co.Oil & Gas OperatorDec 2003
75Ballard Oil Inc.Oil & Gas OperatorMay 2025
76Barco Oil Co.Oil OperatorDec 2009
77Barham-Boyne Oil Co. Inc.Oil OperatorDec 1992
78Barto Oil Co.Oil & Gas OperatorDec 1992
79Bayshore-Long Beach LLCOil & Gas OperatorDec 2000
80Bayswater Exploration & Production LLCDenver, CO 80202Oil & Gas OperatorMay 2025
81Beach Supply Co.Oil OperatorDec 1987
82Beacon Oil CompanyOil OperatorDec 1985
83Bechtel Petroleum Operations Inc.Oil & Gas OperatorDec 1997
84Bellaire Oil CompanyOil & Gas OperatorMay 2025
85Bellevue Resources IncLakewood, CO 80235Oil & Gas OperatorFeb 2009
86Belridge Energy Resources Inc.Oil & Gas OperatorMay 2025
87Bennett Petroleum Inc.Oil & Gas OperatorMay 2025
88Bentley Family Limited PartnershipOil & Gas OperatorFeb 2023
89Benton Oil & GasGas OperatorDec 1992
90Berenergy CorporationDenver, CO 80217Oil & Gas OperatorJun 2025
91Berkley Petroleum Inc.Oil & Gas OperatorDec 2007
92Berry Petroleum CompanyDenver, CO 80202Oil & Gas OperatorFeb 2014
93Berry Petroleum Company LLCBakersfield, CA 93311Oil & Gas OperatorMay 2025
94Beverly Hills Oil Co.Oil & Gas OperatorDec 1979
95Big Horn Oil And Gas Inc.Gas OperatorApr 2025
96Big Valley ResourcesOil OperatorDec 2008
97Big West Of California LLCOil & Gas OperatorDec 2018
98Black Badger Energy LLC.Oil OperatorMay 2025
99Black Gold Oil CompanyDuncan, OK 73533-1581Oil & Gas OperatorApr 2025
100Black Mountain Oil Co.Oil & Gas OperatorDec 1999