Oil & Gas Companies in Richland County, MT

Company NameCompany LocationCompany TypeMost Recent Production
101Sannes, Ronald M. Or Margaret AnnBillings, MT 59103Oil & Gas OperatorOct 2017
102Scout Energy Management LLCDallas, TX 75240Oil & Gas OperatorDec 2025
103Sinclair Oil & Gas CompanySalt Lake Cty, UT 84130Oil & Gas OperatorDec 2025
104Slawson Exploration Company IncOklahoma City, OK 73102Oil & Gas OperatorDec 2025
105SM Energy CompanyMidland, TX 79707Oil & Gas OperatorDec 2025
106St. Mary Land & Exploration CoDenver, CO 80201Oil & Gas OperatorJun 2010
107Staghorn Energy, LLCTulsa, OK 74103Oil & Gas OperatorAug 2025
108Stalking Horse Energy, LLCDenver, CO 80246Oil OperatorAug 2025
109Stephens, Autry C.Midland, TX 79701Oil & Gas OperatorMar 2023
110Stone Energy CorporationDenver, CO 80202-2828Oil & Gas OperatorOct 2014
111Summit Resources, Inc.Houston, TX 77077Oil & Gas OperatorSep 2016
112Swanson Oil & Gas LLCWilliston, ND 58802Oil & Gas OperatorSep 2025
113T2 Operating CorporationDenver, CO 80202Oil & Gas OperatorDec 2025
114Tipperary Oil & Gas CorporationDenver, CO 80202Oil & Gas OperatorMay 2014
115Toi OperatingSidney, MT 59270Oil OperatorSep 2019
116True Oil LLCCasper, WY 82602Oil & Gas OperatorOct 2025
117Tyrex Oil CompanyCasper, WY 82602Oil & Gas OperatorMay 1997
118Unit Petroleum CompanyTulsa, OK 74170Oil & Gas OperatorDec 2025
119Vintage Petroleum, Inc.Houston, TX 77046Oil & Gas OperatorAug 2025
120Wesco Operating IncCasper, WY 82602Oil & Gas OperatorOct 2025
121Westport Oil & Gas Company LPThe Woodlands, TX 77380Oil & Gas OperatorFeb 2007
122White Rock Oil & Gas, LLCPlano, TX 75024Oil & Gas OperatorDec 2025
123Whiting Oil And Gas CorporationHouston, TX 77002Oil & Gas OperatorDec 2025
124Whiting Petroleum CorporationDenver, CO 80290Oil & Gas OperatorJan 2025
125Williston Industrial Supply CorporationWilliston, ND 58801Oil & Gas OperatorMar 2012
126Xoil IncAurora, CO 80016Oil & Gas OperatorJul 2023
127XTO Energy Inc.Spring, TX 77389Oil & Gas OperatorDec 2025