Oil & Gas Companies in California

Company NameCompany LocationCompany TypeMost Recent Production
125 Hill Properties Inc.Oil OperatorFeb 2025
2260 Resource Management LLCGas OperatorFeb 2025
33MB Oil & Gas LLCIrvine, CA 92616Oil & Gas OperatorMar 2025
44H Oil Co.Oil OperatorDec 1992
5A. J. HayesOil & Gas OperatorDec 1998
6A. L. & V. I. GraysonOil OperatorDec 1993
7A. S. Johnston Drilling Corp.Oil & Gas OperatorDec 1987
8A.L.S. Resources Inc.Oil OperatorDec 2004
9Aa Production Services Inc.Gas OperatorFeb 2025
10Aalpha Energy Inc.Oil & Gas OperatorMar 2025
11Aba Energy CorporationOil & Gas OperatorMar 2025
12ABC Oil Co.Wichita Falls, TX 76301Oil & Gas OperatorOct 2023
13Abe GiesbrechtGas OperatorDec 1983
14Adco LTD.Oil & Gas OperatorDec 1983
15Aera Energy LLCOil & Gas OperatorMar 2025
16Agey Petroleum Co.Oil & Gas OperatorDec 1998
17Alanmar EnergyGas OperatorJan 2018
18Alexander Oil CompanyLoco, OK 73442-9409Oil & Gas OperatorMar 2025
19Allenco Energy Inc.Oil & Gas OperatorFeb 2025
20Allied Energy CorporationOil & Gas OperatorFeb 2025
21Allied Western PetroleumOil & Gas OperatorFeb 2025
22Almond Crest Oil LLCOil & Gas OperatorMar 2025
23Amerada Hess Corp. Unit OperatorOil & Gas OperatorDec 1986
24Amerada Hess CorporationHouston, TX 77252Oil & Gas OperatorAug 2013
25American Barter Petroleum Inc.Oil & Gas OperatorJun 1993
26Ample Resources Inc.Oil & Gas OperatorFeb 2025
27Amrich Energy Inc.Oil & Gas OperatorFeb 2025
28Anacapa Oil CorporationGas OperatorFeb 2025
29Anadime Energy Services Inc.Oil & Gas OperatorDec 2009
30Ancora-Verde CorporationOil & Gas OperatorDec 2004
31Andrew L. NewkirkOil OperatorFeb 2025
32Angus Petroleum CorporationChicago, IL 60660Oil & Gas OperatorDec 2022
33Ann BrindleOil OperatorFeb 2025
34Ann Marie TiersOil OperatorDec 1996
35Anschutz Exploration CorporationDenver, CO 80202Oil & Gas OperatorMay 2025
36Anterra Energy Services Inc.Oil & Gas OperatorFeb 2025
37Anterra Services Inc.Oil & Gas OperatorFeb 2025
38Apache CorporationHouston, TX 77042Oil & Gas OperatorMay 2025
39Apc Operating PartnershipTulsa, OK 74136Oil & Gas OperatorOct 1996
40Arcady Oil CompanyGas OperatorDec 1989
41Archer Operations California LLCGas OperatorFeb 2025
42Arco Oil & Gas CompanyPlano, TX 75086Oil & Gas OperatorMar 2006
43Arco Western Energy Co.Oil & Gas OperatorDec 1999
44Argo Petroleum CorporationOil & Gas OperatorDec 1989
45Argosy Oil CompanyGas OperatorDec 1999
46Aristata Exploration Co.Gas OperatorDec 2009
47Arkoma Production Company Of CaliforniaOil & Gas OperatorDec 1993
48Armstrong Oil Inc.Oil & Gas OperatorDec 2020
49Armstrong Petroleum CorporationOil & Gas OperatorMar 2025
50Arrowhead Operating Inc.Argyle, TX 76226Oil & Gas OperatorMay 2025
51Arthur J. Arding Jr.Gas OperatorDec 1995
52Arthur McAdamsOil & Gas OperatorFeb 2025
53Ashe Road Properties L.P.Oil & Gas OperatorDec 2009
54Asioco Inc.Oil & Gas OperatorJan 2018
55Aspen Exploration CorporationOil & Gas OperatorDec 2007
56Asphalta LLCOil & Gas OperatorMar 2025
57Astarta Springs Sustainable Farms LLCOil & Gas OperatorFeb 2025
58Atasca Resources IncHouston, TX 77219Oil & Gas OperatorMay 2025
59Atlantic Oil CompanyOil & Gas OperatorFeb 2025
60Atlantic Richfield CompanyPlano, TX 75074Oil & Gas OperatorDec 2016
61Austin Oil CompanyOil & Gas OperatorDec 2000
62Axis Petroleum Co.Oil & Gas OperatorDec 2022
63B & L Pump & Supply CompanyOil & Gas OperatorFeb 2025
64B & S Oil CompanyKermit, TX 79745Oil & Gas OperatorFeb 2025
65B. D. & D. Co.Gas OperatorDec 1992
66B. E. Conway Energy Inc.Oil & Gas OperatorMar 2025
67B5 Holdings LLCOil OperatorMar 2025
68Badger Oil CorporationLafayette, LA 70505Oil & Gas OperatorNov 2011
69Baker Oil And Gas CompanyGas OperatorDec 1997
70Baker-Dickey PartnershipOil OperatorDec 1992
71Bakersfield Energy Resources Inc.Oil & Gas OperatorDec 1998
72Bali Oil Co.Oil & Gas OperatorDec 2003
73Ballard Oil Inc.Oil & Gas OperatorMar 2025
74Barco Oil Co.Oil OperatorDec 2009
75Barham-Boyne Oil Co. Inc.Oil OperatorDec 1992
76Barto Oil Co.Oil & Gas OperatorDec 1992
77Bayshore-Long Beach LLCOil & Gas OperatorDec 2000
78Bayswater Exploration & Production LLCDenver, CO 80202Oil & Gas OperatorFeb 2025
79Beach Supply Co.Oil OperatorDec 1987
80Beacon Oil CompanyOil OperatorDec 1985
81Bechtel Petroleum Operations Inc.Oil & Gas OperatorDec 1997
82Bellaire Oil CompanyOil & Gas OperatorMar 2025
83Bellevue Resources IncLakewood, CO 80235Oil & Gas OperatorFeb 2009
84Belridge Energy Resources Inc.Oil & Gas OperatorMar 2025
85Bennett Petroleum Inc.Oil & Gas OperatorMar 2025
86Bentley Family Limited PartnershipOil & Gas OperatorFeb 2023
87Benton Oil & GasGas OperatorDec 1992
88Bercon Inc.Gas OperatorDec 1995
89Berenergy CorporationDenver, CO 80217Oil & Gas OperatorMar 2025
90Berkley Petroleum Inc.Oil & Gas OperatorDec 2007
91Berry Petroleum CompanyDenver, CO 80202Oil & Gas OperatorFeb 2014
92Berry Petroleum Company LLCBakersfield, CA 93311Oil & Gas OperatorMar 2025
93Beverly Hills Oil Co.Oil & Gas OperatorDec 1979
94Big Horn Oil And Gas Inc.Gas OperatorFeb 2025
95Big Valley ResourcesOil OperatorDec 2008
96Big West Of California LLCOil & Gas OperatorDec 2018
97Black Badger Energy LLC.Oil OperatorMar 2025
98Black Gold Oil CompanyDuncan, OK 73533-1581Oil & Gas OperatorFeb 2025
99Black Mountain Oil Co.Oil & Gas OperatorDec 1999
100Black Velvet Petro. Co.Oil & Gas OperatorDec 2007