Oil & Gas Companies in Sweetwater County, WY

Company NameCompany LocationCompany TypeMost Recent Production
1Abraxas Petroleum CorporationSan Antonio, TX 78259Oil & Gas OperatorOct 2025
2Alpha Energy LLCAshland, OR 97520Oil & Gas OperatorJul 2025
3Amax Oil & Gas IncFort Worth, TX 76107Oil & Gas OperatorNov 2014
4American Eagle OilCasper, WY 82605Oil & Gas OperatorDec 2012
5Aminoil USA IncOil & Gas OperatorJan 1985
6Amplify Energy Operating LLCHouston, TX 77002Oil & Gas OperatorOct 2025
7Anadarko E&P Onshore LLCHouston, TX 77046Oil & Gas OperatorOct 2025
8Anadarko Petroleum CorporationHouston, TX 77251Oil & Gas OperatorJul 2025
9Anchor Bay CorporationDenver, CO 80202Oil & Gas OperatorJun 2007
10Anderson Oil CompanyBurkburnett, TX 76354Oil & Gas OperatorDec 2015
11Anr Production CompanyHouston, TX 77046Oil & Gas OperatorAug 2017
12Anschutz CorporationDenver, CO 80202Oil & Gas OperatorSep 2016
13Anschutz Exploration CorporationDenver, CO 80202Oil & Gas OperatorOct 2025
14Antler Energy LLCBaggs, WY 82321Oil & Gas OperatorJun 2025
15Apache CorporationHouston, TX 77042Oil & Gas OperatorOct 2025
16Arabie, Inc.Lake Charles, LA 70605Oil & Gas OperatorApr 2025
17Arkland Producing Co IncMidland, TX 79701Oil & Gas OperatorNov 2023
18Axem Resources IncDenver, CO 80202-4617Oil & Gas OperatorJul 2013
19Aztec Gas And Oil CorporationElephant Butte, NM 87935-0370Oil & Gas OperatorMar 2005
20Ballard Petroleum Holdings LLCBillings, MT 59104Oil & Gas OperatorAug 2025
21Bannon Energy IncHouston, TX 77068Oil & Gas OperatorJun 1998
22Barrel Springs Development CorpDenver, CO 80202Oil & Gas OperatorOct 1986
23Bass Enterprises Production CoFort Worth, TX 76102Oil & Gas OperatorDec 2006
24Bataa Oil IncArvada, CO 80005Oil & Gas OperatorAug 2025
25Bayless Robert L ProducerDenver, CO 80293Oil & Gas OperatorSep 2003
26Bayswater Exploration & Production LLCDenver, CO 80202Oil & Gas OperatorJul 2025
27Bce-Mach LLCOklahoma City, OK 73134Oil & Gas OperatorAug 2025
28Belco Energy Corp.Dallas, TX 75231Oil & Gas OperatorMar 2015
29Berco Resources LLCDenver, CO 80206Oil & Gas OperatorSep 2009
30BHP Petroleum (USA) IncOil & Gas OperatorMar 1993
31Big Piney Oil & Gas CompanyDallas, TX 75206Oil & Gas OperatorSep 1992
32Bill Barrett CorporationDenver, CO 80202Oil & Gas OperatorDec 2017
33Black Hills Exploration & Production IncNewcastle, WY 82701Oil & Gas OperatorMay 2018
34Black Thunder Oil LLCGillette, WY 82717Oil & Gas OperatorAug 2025
35Blackjack Oil, Inc.Las Vegas, NV 89128Oil & Gas OperatorNov 2019
36Bowers Oil & Gas, Inc.Grand Junction, CO 81505-1097Oil & Gas OperatorNov 2022
37BP America Production CompanyDenver, CO 80202Oil & Gas OperatorJun 2025
38BP Exploration IncOil & Gas OperatorMay 1993
39Breck Operating Corp.Breckenridge, TX 76424Oil & Gas OperatorJun 2025
40Breitburn Operating LPHouston, TX 77002Oil & Gas OperatorOct 2025
41Bristol Resources CorporationTulsa, OK 74170Oil & Gas OperatorFeb 2022
42Brown Tom IncDallas, TX 75240Oil & Gas OperatorMar 2015
43Bta Oil Producers, LLCMidland, TX 79701Oil & Gas OperatorOct 2025
44Burlington Resources Oil & Gas Company LGillette, WY 82718Oil & Gas OperatorJan 2022
45C & K PetroleumOil & Gas OperatorJan 1984
46Cabot Oil & Gas CorporationHouston, TX 77024Oil & Gas OperatorJun 2025
47Caerus Northern Rockies LLCDenver, CO 80202Oil & Gas OperatorMar 2021
48Cambria Oil CompanyCasper, WY 82601Oil & Gas OperatorDec 1996
49Carol-Holly Oil CorporationDenver, CO 80237Oil & Gas OperatorAug 2025
50Celsius Energy CompanyDenver, CO 80202-1558Oil & Gas OperatorMar 2000
51CenexOil & Gas OperatorDec 1996
52Chaco Energy CompanyDenver, CO 80201Oil & Gas OperatorAug 2025
53Chambers JerryDenver, CO 80237Oil & Gas OperatorDec 1993
54Chaparral Energy, L.L.C.Oklahoma City, OK 73142Oil & Gas OperatorOct 2025
55Chevron USA IncMidland, TX 79706Oil & Gas OperatorOct 2025
56Chriscor Oil & GasPlana, TX 75075Oil & Gas OperatorJul 1987
57Christmann John JLubbock, TX 79401Oil & Gas OperatorDec 1994
58Cig ExplorationDenver, CO 80201Oil & Gas OperatorSep 1999
59Coastal Chem IncMidvale, UT 84047Oil & Gas OperatorAug 2003
60Coastal Oil & Gas CorporationHouston, TX 77252Oil & Gas OperatorDec 2009
61Cobra Oil & Gas CorporationWichita Falls, TX 76307Oil & Gas OperatorOct 2025
62Cody Energy, Inc.Houston, TX 77077Oil & Gas OperatorAug 2025
63Cohort Energy CompanyCentennial, CO 80112Oil & Gas OperatorFeb 2007
64Coleman Oil & Gas IncFarmington, NM 87499Oil & Gas OperatorJan 2023
65Colt Resources CorporationBillings, MT 59103Oil & Gas OperatorFeb 2013
66Columbine Exploration CorpEnglewood, CO 80111Oil & Gas OperatorAug 1998
67Conoco Inc.Houston, TX 77252Oil & Gas OperatorMar 2015
68ConocoPhillips CompanyMidland, TX 79701Oil & Gas OperatorOct 2025
69Contango Resources LLCAndrews, TX 79714Oil & Gas OperatorOct 2025
70Continental Industries LCCasper, WY 82602Oil & Gas OperatorFeb 2008
71Cotton Petroleum CorporationTulsa, OK 74102Oil & Gas OperatorJan 2005
72Crowheart Energy LLCBaggs, WY 82321Oil & Gas OperatorJul 2025
73Crown Energy Partners LLCEnglewood, CO 80112Oil & Gas OperatorSep 2013
74Crown Oil & Gas Co IncLabarge, WY 83123Oil & Gas OperatorJan 2023
75Dalen Resources Oil & Gas Co.Dallas, TX 75206Oil & Gas OperatorJun 2010
76Damson Oil CorporationHouston, TX 77210Oil & Gas OperatorMar 2005
77Davis Oil CompanyDenver, CO 80202Oil & Gas OperatorJun 1988
78Davis Petroleum Corp.Houston, TX 77027Oil & Gas OperatorOct 2025
79Deca Energy CorporationOil & Gas OperatorAug 1986
80Decalta International CorpDenver, CO 80202Oil & Gas OperatorMar 2015
81Devon Energy Production Company LPOklahoma City, OK 73102Oil & Gas OperatorOct 2025
82Devon SFS Operating IncOklahoma City, OK 73102Oil & Gas OperatorMar 2008
83Diamond Oil & Gas LLCCasper, WY 82604Oil & Gas OperatorAug 2025
84Diamondback Oil Partners LLPArvada, CO 80004Oil & Gas OperatorDec 2016
85Dietrich Resources CorporationOil & Gas OperatorJun 2007
86DNR Oil And Gas, Inc.Englewood, CO 80155Oil & Gas OperatorAug 2025
87Duncan Energy CompanyDenver, CO 80202Oil & Gas OperatorMar 2008
88Duncan Oil IncDenver, CO 80210Oil & Gas OperatorJun 2016
89Dyco Petroleum CorporationTulsa, OK 74103Oil & Gas OperatorMar 2015
90Eagle Oil & Gas Co.Dallas, TX 75225Oil & Gas OperatorOct 2025
91Eex CorporationHouston, TX 77060Oil & Gas OperatorFeb 2000
92El Paso Natural Gas CompanyEl Paso, TX 79978Oil & Gas OperatorApr 2013
93Eland Energy IncDallas, TX 75248Oil & Gas OperatorJul 2025
94Elf Aquitaine IncHouston, TX 77002Oil & Gas OperatorMay 1991
95Emerald Operating CompanyPlano, TX 75075Oil & Gas OperatorAug 2025
96Encana Energy Resources IncDenver, CO 80202-2828Oil & Gas OperatorFeb 2024
97Energen Resources Maq IncBirmingham, AL 35203Oil & Gas OperatorSep 2000
98Energetics IncEnglewood, CO 80155Oil & Gas OperatorAug 1985
99Energy Equity CompanyColumbus, MT 59019Oil & Gas OperatorAug 2025
100Energy Reserves GroupHouston, TX 770563020Oil & Gas OperatorApr 1996