Oil & Gas Companies

Company NameCompany LocationCompany TypeMost Recent Production
1401Howard Energy Co IncOil & Gas OperatorAug 2011
1402Howard Exploration, Inc.Houston, TX 77069Oil & Gas OperatorDec 2025
1403Howard Operating Co.Saint Jo, TX 76265Oil & Gas OperatorJul 2026
1404Howard'S Well ServiceOil OperatorJul 2007
1405Howard, Anthony DPhilpot, KY 42366Oil OperatorDec 2023
1406Howard, Anthony E. F.Tyler, TX 75701Oil & Gas OperatorJun 2001
1407Howard, Douglas J.Houston, TX 77070Oil & Gas OperatorMar 2008
1408Howard, Lorna AgentOil & Gas OperatorDec 2021
1409Howard, Patrick M.Eden, NY 14057Gas OperatorDec 2025
1410Howard, TerryCherry Creek, NY 14723Gas OperatorDec 2025
1411Howco Oil And GasStroud, OK 74079-9604Oil & Gas OperatorMar 2015
1412Howden Petroleum CorpWetumka, OK 74883Gas OperatorNov 1997
1413Howdyshell Pumping IncLogan, OH 43138Oil OperatorDec 2025
1414Howe, Thomas L.Hunt, NY 14846Gas OperatorDec 2025
1415Howell & Sandlin, Inc.Marshall, TX 75671Oil & Gas OperatorJan 2001
1416Howell Bill JCalvin, OK 74531-0248Oil & Gas OperatorSep 2016
1417Howell C WWichita Falls, TX 76308Oil & Gas OperatorApr 2015
1418Howell Crane & Rigging, Inc.San Antonio, TX 78220Oil OperatorJul 2026
1419Howell Drilling, Inc.San Antonio, TX 78230Oil & Gas OperatorAug 2003
1420Howell JasonWynona, OK 74084Oil OperatorApr 2026
1421Howell Oil & Gas, Inc.Marshall, TX 75671Oil & Gas OperatorOct 2019
1422Howell Oil CompaOil & Gas OperatorAug 1995
1423Howell Oil CompanyHutchinson, KS 67504Oil & Gas OperatorMar 2026
1424Howell Petroleum CorporationHouston, TX 77251Oil & Gas OperatorOct 2015
1425Howell'S Well Service, Inc.Oil & Gas OperatorApr 2026
1426Howell, Betty L.Lakewood, NY 14750Gas OperatorDec 2025
1427Howells Oil & GasGraysville, OH 45734Oil & Gas OperatorDec 2025
1428Howitzer Operating, LLCDallas, TX 75380Oil OperatorJul 2026
1429Howle Operating Account, Inc.Breckenridge, TX 76424Oil & Gas OperatorDec 1999
1430Howle, A.G.Breckenridge, TX 76424Oil & Gas OperatorDec 2011
1431Howles, William ASavona, NY 14879Gas OperatorDec 2025
1432Hoy Production LLCGas OperatorApr 2026
1433Hoyt Energy L.L.C.Oil OperatorApr 2026
1434Hoyt John CBartlesville, OK 74005-1316Oil OperatorFeb 2000
1435Hoyt Oil & Gas LLCCushing, OK 74023-0442Oil & Gas OperatorApr 2026
1436HP Operating LLCSeminole, OK 74868Oil OperatorApr 2026
1437HPC Energy LLCMidland, TX 79703Oil & Gas OperatorAug 2013
1438HPC IncorporatedDenver, CO 80202Oil & Gas OperatorNov 1998
1439HPC Operating, Inc.Dallas, TX 75379Oil & Gas OperatorMar 2008
1440Hpoc, LLCCuba, NM 87013Oil OperatorOct 2025
1441HPPC, Inc.Midland, TX 79701Oil & Gas OperatorSep 2025
1442HR Energy LLCShelby, MT 59474Oil & Gas OperatorApr 2026
1443HR McClureGas OperatorDec 2018
1444HR PetroleumCorpus Christ, TX 78413Oil & Gas OperatorApr 1998
1445HRB OilHouston, TX 77042Oil & Gas OperatorOct 1998
1446HRB Operating Company, Inc.Bridgeport, TX 76426Oil & Gas OperatorJul 2026
1447Hrbacek Oil Corp.La Grange, TX 78945Oil & Gas OperatorFeb 2004
1448Hrbek, R. L.Merino, CO 80741Oil & Gas OperatorJan 2024
1449HRC IncHobbs, NM 88241Gas OperatorJun 2017
1450HRC Operating, LLCDenver, CO 80202Oil & Gas OperatorNov 2017
1451HRC Production CoHouston, TX 77024Oil & Gas OperatorApr 2026
1452HRF Exploration & Production LLCGaylord, MI 49734-0160Gas OperatorJul 2026
1453HRF Exploration & Production,IncDenver, CO 80237Oil & Gas OperatorMar 2009
1454HRH Energy Group IncorporatedCarrollton, TX 75006Oil & Gas OperatorNov 2009
1455HRL Oilfields InOil OperatorJun 1998
1456HRM Resources II, LLCDenver, CO 80202Oil & Gas OperatorMar 2026
1457HRM Resources III LLCDenver, CO 80202Oil & Gas OperatorJun 2022
1458HRM Resources LLCDenver, CO 80202Oil & Gas OperatorAug 2015
1459Hronek, KennethCaldwell, TX 77836Oil & Gas OperatorJul 2026
1460Hrubetz Oil Co.Dallas, TX 75225Oil OperatorSep 1986
1461Hrubetz Operating CompanyDallas, TX 75225Oil & Gas OperatorFeb 1999
1462HS ResourcesTulsa, OK 74136Oil & Gas OperatorAug 1997
1463HS Resources, Inc.Denver, CO 80202Oil & Gas OperatorSep 2002
1464Hsumy Oil & Gas IncOklahoma City, OK 73102Oil & Gas OperatorApr 2007
1465HT2 Exploration LLCThe Woodlands, TX 77381-4198Oil OperatorApr 2026
1466HTC Gas Company, LLCHindman, KY 41822Gas OperatorDec 2023
1467Hub Oil CompanyOil OperatorJan 1990
1468Hub-Cap Oil CompanyArlington, TX 76016Oil & Gas OperatorDec 2013
1469Hub-Hill IncSan Antonio, TX 78230Oil OperatorNov 1998
1470Hubbard Creek Coal Gas LLCGas OperatorApr 2026
1471Hubbard OperatingOzona, TX 76943Gas OperatorJul 2026
1472Hubbs III, LLCOil & Gas OperatorMar 2024
1473Hubcap Oil, LLCBoerne, TX 78015Oil OperatorJul 2026
1474Hubco Exploration Inc.Houston, TX 77073Oil & Gas OperatorSep 2002
1475Huber Energy L.P.Houston, TX 77079Oil & Gas OperatorFeb 2007
1476Huber Energy Panhandle LPHouston, TX 77079Oil & Gas OperatorOct 2005
1477Huber J M CorpEdison, NJ 08837Oil & Gas OperatorJul 2026
1478Huber J M CorporOil & Gas OperatorDec 1996
1479Huber Oil Company, A General PartnershipMadison, KS 66860Oil & Gas OperatorFeb 2026
1480Hubl/HarbinOil OperatorDec 1994
1481Huck Farms LLCStratford, OK 74872Oil & Gas OperatorMar 2026
1482Hudgens Lester EBartlesville, OK 74006-0215Oil OperatorMar 2015
1483Hudgens Operating Co., Inc.Abilene, TX 79603Oil & Gas OperatorJul 1995
1484Hudson Brothers Mining Co., Inc.Cisco, TX 76437Oil & Gas OperatorJun 1994
1485Hudson Brothers, Inc.Hutchinson, KS 67501Oil & Gas OperatorJun 2007
1486Hudson Energy LLCOil OperatorApr 2026
1487Hudson Group LLCCasper, WY 82601Oil & Gas OperatorJul 2025
1488Hudson Oil Company Of TexasFort Worth, TX 76102Oil & Gas OperatorApr 2025
1489Hudson, Comer Oil & GasCisco, TX 76437Oil & Gas OperatorJan 2003
1490Huey DeanOil OperatorOct 2000
1491Hufco, IncorporatedOil & Gas OperatorDec 2020
1492Huff Minerals, LTD.Amarillo, TX 79101Gas OperatorJul 2026
1493Huff, JackMidland, TX 79710Oil & Gas OperatorDec 2004
1494Huffco Petroleum CorporationOil & Gas OperatorJul 1988
1495Huffman ArthurGas OperatorDec 2025
1496Huffman, H. L., LTD.Fort Worth, TX 76113Oil & Gas OperatorSep 1994
1497Huffman-Bowers IncNew Lexington, OH 43764Oil & Gas OperatorDec 2025
1498Hufo Production CorporationMidland, TX 79702Oil & Gas OperatorJul 2002
1499Huggs Inc.Shreveport, LA 71101Oil & Gas OperatorApr 2003
1500Huggs Inc. & Bec, Et AlOil & Gas OperatorFeb 1998