Oil & Gas Companies in Ohio

Company NameCompany LocationCompany TypeMost Recent Production
501Grand Valley Resources IncSeville, OH 44273Oil & Gas OperatorAug 2025
502Graymarr LLCGraysville, OH 45734Oil & Gas OperatorDec 2024
503Great Plains Exploration LLCMentor, OH 44060Oil & Gas OperatorDec 2016
504Green Energy IncWooster, OH 44691Oil & Gas OperatorDec 2024
505Green Gas CoWooster, OH 44691Oil & Gas OperatorDec 2020
506Greenbrier Energy IncMarietta, OH 45750Oil & Gas OperatorDec 2024
507Greenland Petroleum CoBelle Valley, OH 43717Oil & Gas OperatorDec 1991
508Greenwood James WNew Matamoras, OH 45767Oil & Gas OperatorDec 2014
509Greenwood Oil LLCMarietta, OH 45750Oil & Gas OperatorDec 2024
510Gregg Price CorpDover, OH 44622Oil & Gas OperatorDec 2014
511Gress Oil & GasCoshocton, OH 43812Oil & Gas OperatorDec 2024
512Grim Paul ALogan, OH 43138-9445Oil & Gas OperatorDec 2020
513Grimsby Exploration IncCanton, OH 44709Oil & Gas OperatorDec 2018
514Group Maintenance CorpJefferson, OH 44047Oil & Gas OperatorDec 2012
515Guardian Management IncMarion, OH 43302Oil & Gas OperatorDec 1997
516Guernsey Petroleum CorporationAtlanta, GA 30318Oil & Gas OperatorNov 1997
517Gulfport Appalachia LLCOklahoma City, OK 73114-2640Oil & Gas OperatorJun 2025
518Gulfport Energy CorporationOklahoma City, OK 73114-5003Oil & Gas OperatorFeb 2025
519GWB Oil & Gas LLCMarietta, OH 45750Oil & Gas OperatorDec 2024
520H & A DrillingNewark, OH 43056Oil OperatorDec 2024
521H & D Drilling Co IncFrazeysburg, OH 43822Oil & Gas OperatorDec 2024
522H & H Energy Of Ohio LTDZanesville, OH 43701Oil & Gas OperatorDec 2024
523H & K Energy CorpColumbus, OH 43229Oil & Gas OperatorDec 1991
524H & S Drilling Co IncFrazeysburg, OH 43822Oil & Gas OperatorDec 2016
525H & S Operating Co., Inc.Winesburg, OH 44690Oil & Gas OperatorDec 2024
526H & W Drilling IncRacine, OH 45769Oil & Gas OperatorDec 2023
527H & W EnergyYoungstown, OH 44512Oil & Gas OperatorDec 2015
528H I Smith Oil & Gas IncHolmesville, OH 44633Oil & Gas OperatorDec 2024
529H L Altier Service Co IncCanton, OH 44718-3752Oil & Gas OperatorDec 2013
530H. C. Oil Co.Weatherford, TX 76085Oil & Gas OperatorOct 2025
531Haddad & Brooks IncWashington, PA 15301Oil & Gas OperatorDec 2018
532Haessly Hardwood Lumber IncMarietta, OH 45750Oil & Gas OperatorDec 2024
533Halcon Operating Co., Inc.Houston, TX 77024Oil & Gas OperatorOct 2025
534Hall & Horning Serv IncAtwater, OH 44201-9375Oil & Gas OperatorDec 2009
535Hall Drilling LLC (Oil & Gas)Ellenboro, WV 26346Gas OperatorSep 2014
536Hall Energy IncMagnetic Spring, OH 43036Oil & Gas OperatorDec 2017
537Hall IVan & Assoc IncBerea, OH 44017Oil & Gas OperatorDec 1997
538Hall Thomas EMarietta, OH 45750Oil & Gas OperatorDec 2021
539Halter Ralph PRobertsville, OH 44670Oil OperatorDec 1999
540Hamblin Ralph IncMT Vernon, OH 43050Oil & Gas OperatorDec 1991
541Hamilton Leonard OMarietta, OH 45750Oil & Gas OperatorDec 2024
542Hanna M A CoCleveland, OH 44114-1824Oil & Gas OperatorDec 1991
543Hardco, Inc.Cleveland, OH 44115Oil & Gas OperatorDec 1992
544Hardesty ProductionGambier, OH 43022Oil & Gas OperatorDec 2024
545Hardin Hanley EZanesville, OH 43701Oil & Gas OperatorDec 1995
546Harley Drilling & Producing LTDBurbank, OH 44214Oil & Gas OperatorDec 2024
547Harmon O G LLCGraysville, OH 45734Oil & Gas OperatorDec 2024
548Harmons Well ServiceGraysville, OH 45734Oil & Gas OperatorDec 2019
549Harnetty Francis Dba Harnetty Oil & GasJunction City, OH 43748Oil & Gas OperatorDec 2019
550Harris Engineering CoDallas, TX 75248Oil & Gas OperatorDec 1996
551Harrison EnergyTippecanoe, OH 44699Oil & Gas OperatorDec 2000
552Hatco Productions LTDNorth Augusta, SC 29860Oil OperatorDec 2024
553Hawke IncBarbertib, OH 44203Oil & Gas OperatorDec 2024
554Hayes James BrentGuysville, OH 45735-9496Oil & Gas OperatorDec 2024
555Headington Oil Company, L.P.Dallas, TX 75231Oil & Gas OperatorMar 2008
556Hearn Oil Co. LLCNewport, OH 45768Oil & Gas OperatorDec 2023
557Heat Controller IncJackson, MI 49204Oil & Gas OperatorDec 1996
558Hehns Quality Gardens IncWadsworth, OH 44281Oil & Gas OperatorDec 2024
559Heinrich Enterprises Inc Dba Washington OperationsReno, OH 45773Oil & Gas OperatorDec 2024
560Helms OilBrinkhaven, OH 43006Oil OperatorDec 2018
561Herald Oil & Gas CoMiddleport, OH 45760-9000Oil & Gas OperatorDec 2010
562Hess Ohio Developments LLCHouston, TX 77010Oil & Gas OperatorSep 2018
563Hess Ohio Resources LLCHouston, TX 77010Oil & Gas OperatorJun 2014
564HG Energy LLCParkersburg, WV 26101Oil & Gas OperatorDec 2021
565Hi Snyder/Snyder Oil & Gas IncDover, OH 44622Oil & Gas OperatorDec 2019
566High Plains Gas Systems, Inc.Houston, TX 77019Oil & Gas OperatorOct 2025
567Highman Oil & Gas LLCWoodsfield, OH 43793Oil & Gas OperatorDec 2024
568Hilcorp Energy CompanyHouston, TX 77208Oil & Gas OperatorOct 2025
569Hill Drilling IncMillersburg, OH 44654Oil & Gas OperatorDec 1997
570Hill William FMillersburg, OH 44654Oil & Gas OperatorDec 1993
571Hilltop Development CorpFrazeysburg, OH 43822Oil & Gas OperatorDec 1984
572HLH Drilling IncAndover, OH 44003Oil & Gas OperatorDec 1985
573Hocking Hills Energy And Well Service LLCLogan, OH 43138-8497Oil & Gas OperatorDec 2024
574Hocking Technical CollegeNelsonville, OH 45764Oil & Gas OperatorDec 2024
575Holbrook LLCBimble, KY 40915Oil & Gas OperatorJun 2025
576Holl Investment CoLogan, OH 43138Oil & Gas OperatorDec 2019
577Hoover Frank W Dba Cherokee DrillingMiramar Beach, FL 32550Oil & Gas OperatorDec 2024
578Hoover Producing & OperatingNewark, OH 43055Oil & Gas OperatorDec 2001
579Hopco Resources IncColumbus, OH 43065Oil & Gas OperatorDec 2024
580Hopewell Oil & Gas Development CompanyColumbus, OH 43228Oil & Gas OperatorDec 2019
581Hortin & Huffman Pet GeolWorthington, OH 43085Oil & Gas OperatorDec 2000
582Hottel Glenn DW Salem, OH 44287Oil & Gas OperatorDec 1993
583Hottel Oil & Gas LLCWooster, OH 44691-7639Oil & Gas OperatorDec 2013
584Houghton Investments LLCColumbus, OH 43235Oil & Gas OperatorDec 2024
585Hounds Oil & Gas LLCCarbon Hill, OH 43111Oil & Gas OperatorDec 2024
586Householder Oil CoJunction City, OH 43748Oil & Gas OperatorDec 1988
587Howdyshell Pumping IncLogan, OH 43138Oil OperatorDec 2024
588Howells Oil & GasGraysville, OH 45734Oil & Gas OperatorDec 2024
589Huffman-Bowers IncNew Lexington, OH 43764Oil & Gas OperatorDec 2024
590Hydrocarbon Resources LTDMedina, OH 44256Oil & Gas OperatorDec 2022
591Independent Oil InvestorsLakeside, MI 49116Oil & Gas OperatorDec 1992
592Indian Hills Resources LLCWilliamsburg, MI 49690Oil & Gas OperatorDec 2024
593Industry Standard Supplies IncDover, OH 44622Oil & Gas OperatorDec 2024
594Inland Drilling Co IncGarretsville, OH 44231Oil & Gas OperatorDec 1992
595Inland PetroleumNewark, OH 43055Oil OperatorDec 2009
596Inr Ohio LLCMorgantown, WV 26508-9209Oil & Gas OperatorJun 2025
597Irvin Drilling CorpZanesville, OH 43701Oil & Gas OperatorDec 1990
598J & C OilNew Matamoras, OH 45767-6035Oil & Gas OperatorDec 2024
599J & M Oil CoOverland PK, KS 66209Oil & Gas OperatorJun 2025
600J & S Oil CoGraham, TX 76450Oil & Gas OperatorApr 2022