Oil & Gas Companies in Wyoming

Company NameCompany LocationCompany TypeMost Recent Production
1101Schneider Oil CorporationBroomfield, CO 80020Oil & Gas OperatorAug 2009
1102Seagull Energy E & P IncHouston, TX 77002Oil & Gas OperatorJan 2015
1103Seahawk Oil International IncNewport Beach, CA 92660Oil & Gas OperatorOct 1997
1104Seedy Draw LLCGreenwood VIllage, CO 80111Oil OperatorJul 2025
1105Seer Operating LLCSheridan, WY 82801Oil & Gas OperatorOct 2016
1106Seguro Oil & Gas IncOil OperatorJul 1992
1107Sendero Resources LLCDenver, CO 80202Oil & Gas OperatorAug 2025
1108Seven Sisters Oil & Gas LLCCasper, WY 82602Oil & Gas OperatorJan 2022
1109Shar Alan Oil CompanyOil & Gas OperatorOct 2005
1110Sharkey Well Service IncOil OperatorDec 2023
1111Sharples Phillip T TrustDenver, CO 80264Oil & Gas OperatorNov 2020
1112ShelcoMaysville, MO 64469Oil & Gas OperatorMay 2021
1113Shell Rocky Mountain Production LLCPinedale, WY 82941Oil & Gas OperatorDec 2008
1114Shenandoah Energy IncDenver, CO 80265-1050Oil & Gas OperatorDec 2014
1115Shenandoah Oil CorporationOil & Gas OperatorJun 1979
1116Sheridan Production Company, LLCHouston, TX 77056Oil & Gas OperatorJun 2025
1117Siegfried R H IncTulsa, OK 74104Oil & Gas OperatorMar 2008
1118Sierra Trading CorporationOil & Gas OperatorSep 1978
1119Signal Hill Company LLCCody, WY 82414Oil & Gas OperatorDec 2024
1120Signal Hill Operating LLCOil & Gas OperatorAug 2025
1121Silverado Oil IncGreeley, CO 80631Oil OperatorApr 2000
1122Simasko Production CoDenver, CO 80204Oil & Gas OperatorNov 1997
1123Simon Oil LLCKaycee, WY 82639Oil OperatorJul 2025
1124Simray Production Company LPRichland, TX 75080Oil & Gas OperatorDec 2010
1125Six Bar Oil LLCPine Haven, WY 82721Oil & Gas OperatorJul 2025
1126Skidgel Enterprises IncRawlins, WY 82301Oil & Gas OperatorSep 2018
1127Skinner CorporationOil OperatorApr 1985
1128Skinner Oil & Gas LLCGillette, WY 82717Oil & Gas OperatorJan 2024
1129Skinner'S Resources & Expl IncOil & Gas OperatorJun 2007
1130Sklar Exploration Company LLCShreveport, LA 71101Oil & Gas OperatorOct 2025
1131Skull Creek A LLCDouglas, WY 82633Oil & Gas OperatorJul 2025
1132Skyline Oil CompanySalt Lake City, UT 84111Oil & Gas OperatorJan 1987
1133Slaughter J M Oil CompanyFort Worth, TX 76116Oil & Gas OperatorJan 2001
1134Slawson Exploration Company IncOklahoma City, OK 73102Oil & Gas OperatorOct 2025
1135SM Energy CompanyMidland, TX 79707Oil & Gas OperatorOct 2025
1136Smith AlDuncan, OK 73534-0037Oil OperatorDec 1998
1137Smith Conley P Operating CoEglewood, CO 80112-3640Oil & Gas OperatorJun 2000
1138Smith KevinThermopolis, WY 82443Oil OperatorSep 2024
1139Smith Red Plains Production LLCOil & Gas OperatorAug 2025
1140Smokey Gap Oil Company LLCOil OperatorAug 2025
1141Smokey Oil Company IncCasper, WY 82601Oil & Gas OperatorDec 1996
1142Snowy Owl LLCGillette, WY 82717Oil & Gas OperatorAug 2025
1143Snyder Oil CorporationHouston, TX 77024Oil & Gas OperatorMar 2008
1144Sois-Osage IncOil & Gas OperatorOct 2006
1145Solar Petroleum IncOil OperatorMay 1983
1146Sonat Exploration Co.Houston, TX 77251Oil & Gas OperatorDec 2021
1147Sonoma Energy CorporationPark City, UT 84068Oil & Gas OperatorFeb 2010
1148Sonterra Energy LLCWichita, KS 67226Oil & Gas OperatorJul 2022
1149Sooner Operating Co IncCasper, WY 83602Oil OperatorAug 2025
1150Sourcegas Energy Services CoGolden, CO 80401Gas OperatorJun 2015
1151South Coast Oil CorporationBoulder, CO 80302Oil & Gas OperatorOct 2015
1152South Pass Petroleum IncCasper, WY 82601Oil & Gas OperatorAug 2025
1153Southern Mineral CorporationHouston, TX 77002Oil & Gas OperatorOct 2001
1154Southern States Petroleum CorpOil OperatorJan 1984
1155Southern Union ExplorationOil OperatorJan 1990
1156Southland Royalty CompanyHouston, TX 77210Oil & Gas OperatorSep 2011
1157Southland Royalty Company LLCFort Worth, TX 76102Oil & Gas OperatorJul 2021
1158Southport Exploration IncTulsa, OK 74103-4015Oil & Gas OperatorNov 1998
1159Southwestern Energy Prod CoHouston, TX 77032Oil & Gas OperatorJun 2015
1160Southwestern Production CorporationLakewood, CO 80228Oil & Gas OperatorAug 2025
1161Spellbound Energy LLCDenver, CO 80202Oil & Gas OperatorAug 2025
1162Spirit Energy IncEdmond, OK 73034Oil & Gas OperatorApr 1999
1163Spring Valley Development Co LLCCentennial, CO 80014Oil & Gas OperatorJul 2025
1164St Michael ExplorationOil & Gas OperatorJun 1987
1165St Oil CompanyDenver, CO 80264-2101Oil & Gas OperatorDec 2010
1166St. Mary Operating CompanyDenver, CO 80203Oil & Gas OperatorMar 2019
1167Stag Oil Producers IncMidland, TX 79701Oil & Gas OperatorJan 1998
1168Stanco Petroleum IncKimball, NE 69145Oil & Gas OperatorJul 1999
1169Star Oil Operating Company LLCLaramie, WY 82073Oil & Gas OperatorAug 2025
1170Star Resources LLCEnglewood, CO 80155-5185Oil & Gas OperatorDec 2013
1171States Exploration IncOil OperatorJul 1985
1172Statex Petroleum IncDallas, TX 75229Oil & Gas OperatorDec 2000
1173Stealth Energy IncBillings, MT 59101Oil OperatorDec 2011
1174Stealth Energy USA IncBillings, MT 59104Oil OperatorDec 2017
1175Steamboat Oil And Gas LLCGillette, WY 82717Oil OperatorAug 2025
1176Stellar Oil CompanyArvada, CO 80006Oil & Gas OperatorDec 1998
1177Stephens Production CompanyThe Woodlands, TX 77381Oil & Gas OperatorJul 2025
1178Sterling Energy CorporationDenver, CO 80202Oil & Gas OperatorSep 1995
1179Stewart Petroleum CorporationGreenwood VIllage, CO 80111Oil & Gas OperatorDec 2023
1180Stone & Wolf LLCSheridan, WY 82801Oil & Gas OperatorDec 2006
1181Stone Energy CorporationDenver, CO 80202-2828Oil & Gas OperatorOct 2014
1182Stone Energy LLCDenver, CO 80202Oil & Gas OperatorMay 2005
1183Stone Petroleum CorporationOil & Gas OperatorDec 1996
1184Storm Cat Energy USA Operating CorpDenver, CO 80202Gas OperatorJun 2017
1185Stovall Oil CompanyCasper, WY 82602Oil & Gas OperatorAug 1998
1186Strachan Exploration IncEnglewood, CO 80112Oil & Gas OperatorJul 2025
1187Stringer E MOil OperatorMay 1996
1188Stripper Oil Company IncOil OperatorMay 2025
1189Stroud Petroleum, Inc.Shreveport, LA 71162Oil & Gas OperatorOct 2025
1190Summit Gas Resources IncSheridan, WY 82801Gas OperatorDec 2023
1191Summit Operating LLCBoulder, CO 80301Oil & Gas OperatorAug 2025
1192Summit Resources, Inc.Houston, TX 77077Oil & Gas OperatorSep 2016
1193Suncor Energy Natural Gas America IncGreenwood VIllage, CO 80111Gas OperatorFeb 2010
1194Sundance Energy IncDenver, CO 80202Oil & Gas OperatorJul 2014
1195Sundance Oil Exploration CoOil OperatorMar 1986
1196Sunshine Valley PetroleumCasper, WY 82605Oil & Gas OperatorAug 2025
1197Supron Energy CorpOil & Gas OperatorOct 1995
1198Surtek IncOil & Gas OperatorMay 1993
1199Survivor Oil IncTulsa, OK 74133Oil & Gas OperatorSep 2007
1200Swenco-Western IncHouston, TX 77060Oil & Gas OperatorJan 1997