Oil & Gas Companies

Company NameCompany LocationCompany TypeMost Recent Production
21601Oakwood Energy, Inc.Jourdanton, TX 78026Oil & Gas OperatorMar 2023
21602Oakwood Resources IncDallas, TX 75374Oil & Gas OperatorMay 1998
21603Oasis Energy Resources LLCNorman, OK 73072-9668Oil & Gas OperatorJun 2025
21604Oasis Operating, Inc.Lubbock, TX 79404Oil & Gas OperatorNov 2020
21605Oasis PetroleumGas OperatorFeb 1984
21606Oasis Petroleum North America LLCHouston, TX 77002Oil & Gas OperatorDec 2025
21607Oasis Petroleum Permian LLCHouston, TX 77002Oil & Gas OperatorFeb 2026
21608Oasis Production Co., Inc.Oil & Gas OperatorJun 1988
21609Oast, Thomas H.Greenville, NC 27835Oil OperatorNov 1985
21610Oates, John Co., Inc.Stinnett, TX 79083Oil & Gas OperatorFeb 2026
21611Obax Oil And Gas LLCSaint Louis, MO 63131Oil OperatorFeb 2026
21612Obele Oil CorporationSedona, AZ 86336-5745Oil & Gas OperatorMay 2017
21613Obele Operating Company LLCSedona, AZ 86336-5745Oil & Gas OperatorOct 2025
21614Oberlander Leslie A JakeCovington, OK 73730Oil OperatorJun 2007
21615Obermiller Clarence TrustCreston, OH 44217Oil & Gas OperatorDec 1987
21616Obermiller Paul JCreston, OH 44217Oil & Gas OperatorDec 2014
21617Oblaen Resources LLCWallis, TX 77485Oil & Gas OperatorFeb 2026
21618Occ Operating Co.Oil & Gas OperatorApr 2019
21619Occam Petroleum E&P, LLCMeeker, OK 74855Oil OperatorFeb 2026
21620Occidental Energy Company, Inc.Houston, TX 77282Oil & Gas OperatorJul 2021
21621Occidental Energy Marketing, Inc.Houston, TX 77227Gas OperatorSep 2015
21622Occidental Of Elk Hills Inc.Oil & Gas OperatorDec 2014
21623Occidental Permian LTD.Houston, TX 77046Oil & Gas OperatorFeb 2026
21624Occidental Pet CorpHouston, TX 77046Oil & Gas OperatorOct 1997
21625Occidental Petroleum CorporationOil & Gas OperatorDec 2021
21626Occidental W TX Overthrust, Inc.Houston, TX 77210Oil & Gas OperatorDec 2021
21627Ocean Energy IncHouston, TX 77002Oil & Gas OperatorAug 2003
21628Ocean Energy Resources Inc.Houston, TX 77002Oil & Gas OperatorMar 2025
21629Ocfiw Oil Company, Inc.Hartington, NE 68739Oil & Gas OperatorDec 2009
21630Ochiltree Oil CompanyEdmond, OK 73034Oil & Gas OperatorApr 2020
21631Oci LLCThermopolis, WY 82443Oil OperatorJan 2024
21632Ocotillo Energy Resources, LLCOdessa, TX 79765Oil OperatorFeb 2026
21633Octagon Resources CorporationOil OperatorApr 2005
21634Octagon Resources LLCNorman, OK 73071-1295Oil & Gas OperatorMay 2015
21635Octane Energy Operating, LLCMidland, TX 79701Oil & Gas OperatorFeb 2026
21636Odebralski, Michael & ConnieFredonia, NY 14063Gas OperatorDec 2024
21637Odegard Energy, Inc.Houston, TX 77024Oil & Gas OperatorJul 2020
21638Odegard Resources/Omni ExpColumbus, OH 43207Oil & Gas OperatorSep 1986
21639Odell LarryOologah, OK 74053Oil OperatorApr 2011
21640Oden, Robin H., Inc.Midland, TX 79702Oil & Gas OperatorApr 1994
21641Odessa Exploration, Inc.Midland, TX 79702Oil & Gas OperatorFeb 2026
21642Odessa Natural CorporationOil & Gas OperatorDec 1991
21643Odessa Oil Investment Co., Inc.Odessa, TX 79762Oil & Gas OperatorNov 2016
21644Odom, ClaudeOil OperatorJul 1983
21645Odom, R. H.Snyder, TX 79550Oil & Gas OperatorJun 1996
21646Odom, Ralph R.Oil & Gas OperatorAug 1993
21647Odum Oil & Gas Co.Harper, TX 78631Oil & Gas OperatorFeb 2026
21648Odum Ronald LPonca City, OK 74601Oil OperatorOct 2025
21649Ody Oil Corp.Oil & Gas OperatorOct 1994
21650Odyssey Operating CompanyShreveport, LA 71106Oil & Gas OperatorSep 2020
21651Odyssey Petroleum CompanyHouston, TX 77010Oil & Gas OperatorApr 1995
21652Odyssey Petroleum Corp.Oil & Gas OperatorJun 2011
21653Odyssey Petroleum, Inc.Overland Park, KS 66282Oil & Gas OperatorApr 2009
21654Oed CoAshley, OH 43003Oil & Gas OperatorDec 1986
21655Oedekoven Amerifields Resources LLCSugar Land, TX 77478Oil OperatorNov 2025
21656Oedekoven Water & Hot OilRecluse, WY 82725Oil & Gas OperatorJan 2026
21657Oeth DRLG CoOil OperatorDec 2018
21658Oex-1 LLCTulsa, OK 74105-5153Oil & Gas OperatorMar 2024
21659Oexco, Inc.Tulsa, OK 74136Oil & Gas OperatorMar 2015
21660Off Broadway Mineral Rights LLCOil & Gas OperatorOct 2024
21661Offield Lease Operations LLCWilson, OK 73463Oil & Gas OperatorMay 2023
21662Offset Oil & GasBig Spring, TX 79720Oil & Gas OperatorAug 2003
21663Offshore Group, Inc. TheHouston, TX 77024Oil & Gas OperatorFeb 2026
21664Offshore Oil & Gas IncHouston, TX 77063Oil & Gas OperatorSep 1994
21665Offshore Shelf LLCOil & Gas OperatorDec 2007
21666Ofs-Tulsa CorporationFort Worth, TX 76102Oil & Gas OperatorFeb 1997
21667Oft Inc.Houston, TX 77079Oil & Gas OperatorFeb 2026
21668Og Co., Inc.Houston, TX 77057Oil & Gas OperatorFeb 2026
21669Oga Operating L.L.C.Midland, TX 79702Oil & Gas OperatorJan 2000
21670Ogden Oil Co., Inc.Oil OperatorMay 1981
21671Ogden Resources CorporationBryan, TX 77805Oil & Gas OperatorFeb 2026
21672Ogden Resources, LTD.Bryan, TX 77802Oil & Gas OperatorFeb 2009
21673Ogh Oil CompanyOil OperatorSep 1995
21674Ogle Petroleum Inc.Oil & Gas OperatorDec 1989
21675Oglesby Oil CompanyOil & Gas OperatorNov 2023
21676Oglesby Prod & Expl Co IncOil & Gas OperatorNov 1987
21677Oglesby, MarshallOil OperatorMay 1990
21678Ogog Operating, LLCDallas, TX 75367Oil & Gas OperatorFeb 2026
21679Ogris Operating, LLCMidland, TX 79710Oil & Gas OperatorFeb 2026
21680Ogs Operating Company, Inc.Midland, TX 79701Oil & Gas OperatorSep 2008
21681Ogx Operating, LLCMidland, TX 79702Oil & Gas OperatorFeb 2026
21682Ogx Resources LLCMidland, TX 79702Oil & Gas OperatorOct 2011
21683Ohio Energy Assets, Inc.Laurelville, OH 43135Oil & Gas OperatorDec 2014
21684Ohio Energy Group IncUniontown, OH 44685Oil & Gas OperatorDec 1988
21685Ohio Energy Operators LLCColorado Spring, CO 80908Oil OperatorDec 2018
21686Ohio Investment Leas IncDanville, OH 43014Oil & Gas OperatorDec 1989
21687Ohio Kentucky Oil CorporationLexington, KY 40503Oil & Gas OperatorDec 2023
21688Ohio L & M Company IncMarietta, OH 45750Oil & Gas OperatorDec 2008
21689Ohio Natural Fuel CoCanton, OH 44718Oil & Gas OperatorDec 1985
21690Ohio Oil & GasFowler, OH 44418Oil & Gas OperatorDec 1988
21691Ohio Production CorpWesterville, OH 43081Oil & Gas OperatorDec 2001
21692Ohio Production*Newark, OH 43055Oil & Gas OperatorDec 1987
21693Ohio Valley Energy Systems CorpAustintown, OH 44515Oil & Gas OperatorDec 2024
21694Ohio Valley Energy, IncLivermore, KY 42352Oil OperatorDec 2023
21695Ohlhausen Oil CompanyAbilene, TX 79608Oil & Gas OperatorFeb 2026
21696Oi Auburn, Inc.Tulsa, OK 74135Gas OperatorDec 2024
21697Oil & Gas Acquisition Group IncAustin, TX 78716Oil & Gas OperatorMay 2003
21698Oil & Gas Development CompanyOil & Gas OperatorMay 1991
21699Oil & Gas Exploration IncCleveland, OK 74020Oil & Gas OperatorAug 2013
21700Oil & Gas Field Services LLCSan Felipe, TX 77473Oil & Gas OperatorApr 2007