Oil & Gas Companies

Company NameCompany LocationCompany TypeMost Recent Production
1U R C COil & Gas OperatorJul 1991
2U S Drilling Company IncHoldenville, OK 74848-0913Oil OperatorAug 2016
3U S Energy Corp. Of Amer. Inc.Roanoke, TX 76262Oil & Gas OperatorJan 2019
4U S Exploraton Liq TrustOil & Gas OperatorSep 1994
5U S Fuel Develop Co IncColumbus, OH 43216-6421Oil & Gas OperatorDec 1984
6U S Steel Mining Company LLCPineville, WV 24874-0338Gas OperatorAug 2005
7U-N-I ExploratioOil & Gas OperatorDec 1990
8U-N-I Exploration & Development, Inc.Yates Center, KS 66783Oil & Gas OperatorJan 2003
9U. D. Man, Inc.San Antonio, TX 78212Oil OperatorJan 2019
10U. O. C., Inc.Oil OperatorSep 2018
11U. S. Oil & GasBakersfield, CA 93309Oil & Gas OperatorFeb 2018
12U. S. Operating, Inc.Dallas, TX 75252Oil & Gas OperatorJan 2019
13U.S. Capital Corp Of Am, Inc.Oil & Gas OperatorAug 1998
14U.S. Enercorp, LLCSan Antonio, TX 782091880Oil & Gas OperatorJul 2004
15U.S. Enercorp, LTD.San Antonio, TX 78209Oil & Gas OperatorJan 2019
16U.S. Energy Development CorpArlington, TX 76011Oil & Gas OperatorJan 2019
17U.S. Exploration CompanyOil & Gas OperatorAug 2003
18U.S. Sovereign Oil And Gas, Inc.Oil & Gas OperatorJan 2019
19U.S. Steel Mining Co., Inc.Gas OperatorAug 2005
20U.S.A. Plugging CompanyPearsall, TX 78061Oil & Gas OperatorJan 2019
21U1 Ranch OilWeesatche, TX 77993Oil & Gas OperatorJan 2019
22Uae Investco 1 (Estill), LLCRavenna, KY 40472Oil OperatorDec 2015
23Uae Investco 2 (Lee), LLCRavenna, KY 40472Oil OperatorDec 2015
24Ubetco, Inc.Rockdale, TX 76567Oil & Gas OperatorJan 2019
25Uhc New Mexico CorporationMidland, TX 79702Oil & Gas OperatorFeb 2007
26Uhc Petroleum CorporationRocksprings, TX 78880-3057Oil & Gas OperatorJan 2019
27Uhl, RobertBradford, PA 16701Oil & Gas OperatorDec 2017
28Uhl, Stephen L.Bradford, PA 16701Oil & Gas OperatorDec 2017
29Uhls, Jimmie J.Sedan, KS 67361Oil OperatorAug 2018
30Uinta Oil & GasRoosevelt, UT 84066Oil & Gas OperatorNov 1997
31Uinta-Taylor Fund, LTDRoosevelt, UT 84066Oil & Gas OperatorNov 2018
32Uintah Investors LLCOrem, UT 84097Oil & Gas OperatorOct 2018
33Ulatex Oil & Gas Inc.Oil & Gas OperatorDec 1998
34Ultra Oil & Gas, Inc.Austin, TX 78738Oil & Gas OperatorJan 2019
35Ultra Petroleum (U.S.A.), Inc.Oil & Gas OperatorSep 2003
36Ultra Resources IncHouston, TX 77060Oil & Gas OperatorSep 2018
37Ultramar Oil & Gas LTDHouston, TX 77060Oil & Gas OperatorJan 1993
38Ultramar Production CompanyOil & Gas OperatorDec 1991
39Ulysses, City OfUlysses, KS 67880Gas OperatorSep 2018
40Umberham Oil Company IncDrumright, OK 74030-0363Oil OperatorJul 2017
41Umc Petroleum CorporationHouston, TX 77002Oil & Gas OperatorFeb 2015
42Umma Resources, LLCPortland, TX 78374Gas OperatorJan 2019
43Ummel'S Tank SerOil OperatorSep 1994
44Unc Texas IncorpGas OperatorMay 1987
45Underbrink OilPleasanton, TX 78064Oil OperatorJan 2019
46Underground Energy, Inc.Pismo Beach, CA 93448-0761Oil & Gas OperatorFeb 2018
47Underwood, Donald D. Dba Mustang Oil CoSalem, WV 26426Oil & Gas OperatorDec 2017
48Underwood, JimOil & Gas OperatorMar 2018
49Underwood, Rip CAmarillo, TXGas OperatorSep 1963
50Unger Well Drilling CorpDennison, OH 44621Oil & Gas OperatorDec 1999
51Uni Production Company, Inc.Oil & Gas OperatorApr 1988
52Unicorn Energy, Inc.Oil & Gas OperatorJan 2019
53Unicorn Oil & Gas Co IncDorset, OH 44032Oil & Gas OperatorDec 1993
54Unifid Oil & Gas Corp.Oil & Gas OperatorMar 1994
55Unified Oil & Gas Corp.Snyder, TX 79550Oil OperatorJan 2019
56Union Camp CorpDover, OH 44622Oil & Gas OperatorDec 2002
57Union City Boro Muni Auth Erie CntyUnion City, PA 16438-1326Gas OperatorDec 2017
58Union Crude CompanyGas OperatorApr 2018
59Union Crude Operating Co.Baytown, TX 77521Oil OperatorAug 2003
60Union Development Co. Inc.Oil & Gas OperatorDec 1992
61Union Diversified Investments, Inc.Gas OperatorJul 2018
62Union Diversified, Inc.Gas OperatorDec 2008
63Union Drilling &Management IncGas OperatorFeb 1991
64Union Expl. Partners, LTD.Oil & Gas OperatorOct 2016
65Union Expl. Partners, LTD. -MobileMobile, AL 36616Oil & Gas OperatorJun 1986
66Union Gas Corp. (Union Gas Co.)Charleston, WV 25338-0000Oil & Gas OperatorDec 2017
67Union Gas Operating CompanyHouston, TX 77014Oil & Gas OperatorJan 2019
68Union Oil CoDanville, OH 43014Oil & Gas OperatorDec 2014
69Union Oil Co Of CaliforniaMidland, TX 79706Oil & Gas OperatorJan 2019
70Union Operating CorpGolden, CO 80401Oil OperatorDec 2015
71Union Pacific Austin Chalk Co.Oil & Gas OperatorJan 2001
72Union Pacific ReOil & Gas OperatorDec 1996
73Union Pacific ResourOil & Gas OperatorApr 2002
74Union Pacific Resources Co.Houston, TX 772511330Oil & Gas OperatorAug 2013
75Union Petro IncUniontown, KY 42461Oil OperatorDec 2014
76Union PetrochemicalOil & Gas OperatorDec 1982
77Union Producing Co.Oil & Gas OperatorDec 1992
78Union Royalty, Inc.Oil & Gas OperatorJul 2014
79Union Seaboard CorporationHouston, TX 77024Oil & Gas OperatorMar 2008
80Union Springs Central School DistrictUnion Springs, NY 13160Gas OperatorDec 2017
81Union Texas PetroleumHouston, TX 77252Oil & Gas OperatorOct 1991
82Union Texas Petroleum Corp.Oil & Gas OperatorOct 2006
83Union Valley Petroleum CorpEnid, OK 73701Oil & Gas OperatorNov 2018
84Unionville ExploOil OperatorJul 1984
85Unit Manager, Citronelle UnitOil & Gas OperatorSep 2001
86Unit Operations IncOklahoma City, OK 73116Gas OperatorDec 2012
87Unit Petroleum CompanyTulsa, OK 74170Oil & Gas OperatorJan 2019
88United CompanyOil & Gas OperatorJun 1995
89United Energy & Expl IncAda, OK 74821-2449Oil & Gas OperatorJun 2017
90United Energy & Exploration LLCAda, OK 74821Oil & Gas OperatorDec 2018
91United Energy CorporationSan Antonio, TX 78209Oil & Gas OperatorJan 2019
92United Energy Operating, LLCEdmond, OK 73083Oil & Gas OperatorJan 2019
93United Energy Partners, Inc.Oil & Gas OperatorMar 2008
94United Energy, Inc.Wichita, KS 67230Oil & Gas OperatorDec 2002
95United Fuel Gas CoOil & Gas OperatorDec 2013
96United Investment GroupOil OperatorNov 2004
97United MeridianOil OperatorDec 1992
98United O&G/Atlee MillerMillersburg, OH 44654Oil & Gas OperatorDec 1985
99United Oil & GasOil OperatorFeb 1988
100United Oil & Minerals L. P.Oil & Gas OperatorJun 2003