Oil & Gas Companies in California

Company NameCompany LocationCompany TypeMost Recent Production
1S & C Oil Co. Inc.Oil & Gas OperatorDec 2023
2S & D Energy Associates Inc.Gas OperatorDec 1986
3S & S Oil Company LLCOil OperatorDec 2023
4S. A. Camp CompaniesOil & Gas OperatorDec 1998
5S. H. MontgomeryOil & Gas OperatorDec 1996
6Saba Petroleum Inc.Oil & Gas OperatorMar 2006
7Sacramento Energy Inc.Oil & Gas OperatorNov 2023
8Sacramento Oil & Gas Co.Gas OperatorDec 2003
9Sage-CaliforniaOil OperatorDec 1988
10Sampson OperatorsOil & Gas OperatorNov 2023
11Samson Resources CompanyTulsa, OK 74103Oil & Gas OperatorDec 2023
12San Carlos Oil & Gas Corp.Gas OperatorDec 2003
13San Joaquin Facilities Management Inc.Oil & Gas OperatorDec 2023
14Sanchez-O'Brien Oil & Gas CorpHouston, TX 77057Oil & Gas OperatorMay 1998
15Santa Ana Canyon Dev. Corp.Oil & Gas OperatorNov 2023
16Santa Fe Energy Operating Partners L.P.Houston, TX 77057Oil & Gas OperatorDec 1994
17Santa Fe MineralsGas OperatorDec 1993
18Santa Fe Minerals, Inc.Dallas, TX 75240Oil & Gas OperatorSep 2013
19Santa Maria Energy LLCOil & Gas OperatorNov 2023
20Say Energy Inc.Oil & Gas OperatorDec 2004
21Seaward Resources Inc.Gas OperatorDec 1984
22Second Wind Production Company Inc.Oil OperatorDec 2013
23Security Pacific National BankOil OperatorDec 1990
24Seneca Resources Co LLCCranberry Township, PA 16066Oil & Gas OperatorJan 2024
25Seneca Western Minerals Corp.Oil & Gas OperatorDec 2009
26Sentinel Peak Resources California LLCOil & Gas OperatorDec 2023
27Sequoia Exploration Inc.Oil & Gas OperatorNov 2023
28Shadow Wolf Energy LLCOil OperatorDec 2023
29Shell Calif. Prod. Inc.Oil OperatorDec 1980
30Shell Western E&P Inc.Houston, TX 77001Oil & Gas OperatorMay 2011
31Shelly Energy Inc.Berwyn, PA 19312Oil & Gas OperatorJan 2024
32Sherman HavensOil & Gas OperatorNov 2023
33Shirley M. LechlerOil & Gas OperatorDec 2001
34Shoshone Oil Corp.Oil & Gas OperatorDec 2005
35Sierra Reserve CompanyOil OperatorDec 1985
36Sierra Resources, Inc.Oklahoma City, OK 73142Oil & Gas OperatorDec 2023
37Signal Hill Petroleum Inc.Oil & Gas OperatorDec 2023
38Silver Exploration CompanyOil & Gas OperatorDec 2023
39SJM Oil LLCOil & Gas OperatorDec 2009
40SM&O LLCOil & Gas OperatorDec 2023
41Smilodon Oil CompanyOil OperatorNov 2023
42Soc Resources Inc.Oil & Gas OperatorNov 2023
43Sojitz Energy Venture, Inc.Houston, TX 77042Oil & Gas OperatorFeb 2018
44Solimar Energy LLCOil & Gas OperatorNov 2023
45Source Energy Corp.Gas OperatorAug 2022
46South Coast Oil CorporationBoulder, CO 80302Oil & Gas OperatorOct 2015
47South Fork RanchOil & Gas OperatorFeb 2013
48Southern California Gas CompanyOil & Gas OperatorDec 2023
49Southridge HomesOil & Gas OperatorDec 1999
50St. James Oil CorporationOil & Gas OperatorDec 2009
51Standing Bear Petroleum Inc.Oil & Gas OperatorDec 2005
52State Lands CommissionOil & Gas OperatorNov 2023
53Stephen W. BradfordOil OperatorDec 1996
54Steve SmithGas OperatorDec 1987
55Steven A. SayceOil OperatorJan 2021
56Stinnett Oil CompanyOil OperatorDec 1997
57Stockdale Energy Co.Gas OperatorDec 1992
58Stockdale Oil & Gas Inc.Oil & Gas OperatorDec 2001
59Stone Cabin Resources LLCOil & Gas OperatorDec 2023
60Storm IndustriesOil & Gas OperatorDec 1988
61Stowe KillingsworthOil & Gas OperatorApr 2023
62Strata-X Inc.Oil & Gas OperatorNov 2023
63Stream Energy, Inc.Oklahoma City, OK 73102Oil & Gas OperatorDec 2023
64Summit Energy LLCOil & Gas OperatorDec 2023
65Summit Exploration (California) LLCOil & Gas OperatorFeb 2018
66Sumpf-WilliamsGas OperatorDec 1980
67Sun Mountain Oil & GasOil & Gas OperatorDec 2020
68Sunray Petroleum Inc.Oil & Gas OperatorDec 2023
69Sunset Exploration Inc.Oil & Gas OperatorNov 2023
70Superior Oil Co.Denver, CO 80217-5444Oil & Gas OperatorFeb 2001
71Superior Well Service Inc.Oil & Gas OperatorSep 2007
72Synergy Oil & Gas LLCOil & Gas OperatorNov 2023
73Synergy ResourcesArtesia, NM 88210Oil & Gas OperatorJan 2015