| 1 | Adair W C & Co Inc. | Logan, OH 43138 | Oil & Gas Operator | Dec 1991 |
| 2 | Akron Oil Corp | Hackensack, NJ 07602 | Oil & Gas Operator | Dec 1989 |
| 3 | Allegheny Producers Inc | Cambridge, OH 43725 | Oil & Gas Operator | Dec 1984 |
| 4 | Alna Energy LLC | New Lexington, OH 43764 | Oil & Gas Operator | Dec 2023 |
| 5 | Altheirs Oil, Inc. | Corning, OH 43730 | Oil & Gas Operator | Dec 2024 |
| 6 | Altier Brothers Inc | Corning, OH 43730 | Oil & Gas Operator | Dec 2024 |
| 7 | Am-Tek Oil Inc | Spokane, WA 99201 | Oil & Gas Operator | Dec 2023 |
| 8 | Amtuck Oil | Logan, OH 43138 | Oil & Gas Operator | Dec 2010 |
| 9 | Apex Crude Oil Co | Logan, OH 43138 | Oil & Gas Operator | Dec 1996 |
| 10 | Artex Oil Company | Marietta, OH 45750 | Oil & Gas Operator | Dec 2024 |
| 11 | Atlas Noble LLC | Fort Worth, TX 76116-5423 | Oil & Gas Operator | Jun 2020 |
| 12 | B-J Of Ohio Inc | Zanesville, OH 43701 | Oil & Gas Operator | Dec 1997 |
| 13 | Bancequity Petroleum Corporation | Macedonia, OH 44056 | Oil & Gas Operator | Dec 2024 |
| 14 | Barclay Petroleum Inc | Bremen, OH 43107 | Oil & Gas Operator | Dec 2017 |
| 15 | Bateman Frank | Lancaster, OH 43130 | Oil & Gas Operator | Dec 1995 |
| 16 | Bates Lew Jr | Lewis Center, OH 43035 | Oil & Gas Operator | Dec 2002 |
| 17 | Bates Oil & Gas Inc | Worthington, OH 43085 | Oil & Gas Operator | Dec 1992 |
| 18 | Belden & Blake Corporation | North Canton, OH 44720 | Oil & Gas Operator | Dec 2016 |
| 19 | Bell Drilling & Prod Co | Logan, OH 43138 | Oil & Gas Operator | Dec 1997 |
| 20 | Bell Oil | Junction City, OH 43748 | Oil & Gas Operator | Dec 2024 |
| 21 | Berg Petroleum Inc | Byesville, OH 43723 | Oil & Gas Operator | Dec 1997 |
| 22 | Brook Valley Oil & Gas Inc | Dayton, OH 45419 | Oil & Gas Operator | Dec 2014 |
| 23 | C T R Resources Inc | Alliance, OH 44601 | Oil & Gas Operator | Dec 2013 |
| 24 | Callander & Kimbrel Inc | Cerluean, KY 42215 | Oil & Gas Operator | Dec 1989 |
| 25 | Carter Oil And Gas Inc | Richmond, VA 23219 | Oil & Gas Operator | Dec 2011 |
| 26 | Central Oil Field Supply | Lancaster, OH 43130 | Oil & Gas Operator | Dec 1991 |
| 27 | Cgas Exploration | Charleston, WV 25301 | Oil & Gas Operator | Dec 2006 |
| 28 | Chesapeake Appalachia LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Jul 2025 |
| 29 | Chevron Appalachia, LLC | Corapolis, PA 15108 | Oil & Gas Operator | Jul 2020 |
| 30 | Christa Oil Co | Cumberland, OH 43732 | Oil & Gas Operator | Nov 1999 |
| 31 | Chute Ray C | Logan, OH 43138 | Oil & Gas Operator | Dec 2014 |
| 32 | Clymar, Inc | New Lexington, OH 43764 | Oil & Gas Operator | Dec 1996 |
| 33 | Collins-McGregor Operating Company | Marietta, OH 45750 | Oil & Gas Operator | Dec 2024 |
| 34 | Columbia Gas Transmission, LLC | Charleston, WV 25314 | Oil & Gas Operator | Dec 2021 |
| 35 | Cosper Well/H Cosper | Logan, OH 43138 | Oil & Gas Operator | Dec 1996 |
| 36 | David A Waldron & Assoc | Wooster, OH 44691 | Oil & Gas Operator | Dec 2016 |
| 37 | David R Hill Inc | Byesville, OH 43723 | Oil & Gas Operator | Dec 2024 |
| 38 | Derby Oil & Gas Corp | Cumberland, OH 43732 | Oil & Gas Operator | Dec 1986 |
| 39 | Devore Anthony D | Gambier, OH 43022 | Oil & Gas Operator | Dec 2010 |
| 40 | Diamond Oil Co | Lancaster, OH 43130 | Oil & Gas Operator | Dec 1992 |
| 41 | Diversified Production LLC | Keithville, LA 71047 | Oil & Gas Operator | Oct 2025 |
| 42 | Dusty Drilling & Producing Corp | New Lexington, OH 43764-1552 | Oil & Gas Operator | Dec 2005 |
| 43 | Eastern Mountain Fuel Inc | Marietta, OH 45750-1240 | Oil & Gas Operator | Dec 2002 |
| 44 | Eastern Petroleum Company | Girard, OH 44420 | Oil & Gas Operator | Sep 1995 |
| 45 | Eclipse Resources-Ohio LLC | Morgantown, WV 26508 | Oil & Gas Operator | Dec 2020 |
| 46 | Edco Drilling & Producing | MT Gilead, OH 43338 | Oil & Gas Operator | Dec 2006 |
| 47 | Elkhead Gas & Oil Co | Newark, OH 43055 | Oil & Gas Operator | Dec 2024 |
| 48 | Enczi Frank | Junction City, OH 43748 | Oil & Gas Operator | Dec 2016 |
| 49 | Energy Distributors Inc | Zanesville, OH 43701 | Oil & Gas Operator | Dec 1987 |
| 50 | Enervest Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Oct 2025 |
| 51 | Enterprise Energy Corp | Cambridge, OH 43725 | Oil & Gas Operator | Dec 1985 |
| 52 | Fredebaugh Well DRLG Co | Grand River, OH 44045 | Oil & Gas Operator | Dec 1991 |
| 53 | G W F Corporation | Columbus, OH 43215 | Oil & Gas Operator | Dec 2003 |
| 54 | G-R Contracting Inc | Lewisville, OH 43754 | Oil & Gas Operator | Dec 2024 |
| 55 | Gaia Exploration LLC | Cumberland, OH 43732-9760 | Oil & Gas Operator | Dec 2023 |
| 56 | Gasearch Inc | Girard, OH 44420 | Oil & Gas Operator | Dec 1985 |
| 57 | Ge Consumer & Industrial | Louisville, KY 40225 | Oil & Gas Operator | Dec 2006 |
| 58 | Geo Kat LLC | Millersport, OH 43046 | Oil & Gas Operator | Dec 2024 |
| 59 | Geopetro Inc | Worthington, OH 43085 | Oil & Gas Operator | Dec 1994 |
| 60 | Geopetro LLC | Worthington, OH 43085-2316 | Oil & Gas Operator | Jul 2025 |
| 61 | Geostrata Inc | Chagrin Falls, OH 44022 | Oil & Gas Operator | Dec 1993 |
| 62 | Gingerich Mike | McConnelsville, OH 43756 | Oil & Gas Operator | Dec 2010 |
| 63 | Green Gas Co | Wooster, OH 44691 | Oil & Gas Operator | Dec 2020 |
| 64 | Greenland Petroleum Co | Belle Valley, OH 43717 | Oil & Gas Operator | Dec 1991 |
| 65 | Grim Paul A | Logan, OH 43138-9445 | Oil & Gas Operator | Dec 2020 |
| 66 | Guardian Management Inc | Marion, OH 43302 | Oil & Gas Operator | Dec 1997 |
| 67 | H L Altier Service Co Inc | Canton, OH 44718-3752 | Oil & Gas Operator | Dec 2013 |
| 68 | Hocking Hills Energy And Well Service LLC | Logan, OH 43138-8497 | Oil & Gas Operator | Dec 2024 |
| 69 | Holl Investment Co | Logan, OH 43138 | Oil & Gas Operator | Dec 2019 |
| 70 | Hopco Resources Inc | Columbus, OH 43065 | Oil & Gas Operator | Dec 2024 |
| 71 | Hounds Oil & Gas LLC | Carbon Hill, OH 43111 | Oil & Gas Operator | Dec 2024 |
| 72 | Howdyshell Pumping Inc | Logan, OH 43138 | Oil Operator | Dec 2024 |
| 73 | Huffman-Bowers Inc | New Lexington, OH 43764 | Oil & Gas Operator | Dec 2024 |
| 74 | J T Plus Well Service LLC | Corning, OH 43730 | Oil & Gas Operator | Dec 2024 |
| 75 | J.D. Drilling Co. | Basehor, KS 66007 | Oil & Gas Operator | Dec 2023 |
| 76 | Jeanie Enterprises LLC | Somerset, OH 43783 | Oil & Gas Operator | Dec 2024 |
| 77 | Jefferson Oil & Gas Company | Pickerington, OH 43147 | Oil & Gas Operator | Dec 2024 |
| 78 | Johnson M & Gingerich M | New Lexington, OH 43764 | Oil & Gas Operator | Dec 1995 |
| 79 | Johnson Mike | MT Perry, OH 43760 | Oil & Gas Operator | Dec 2018 |
| 80 | K & W Oil Company | MT Carmel, IL 62830 | Oil & Gas Operator | May 2013 |
| 81 | Kenoil LLC | Wooster, OH 44691 | Oil & Gas Operator | Dec 2024 |
| 82 | Kilbarger Investments Inc | Logan, OH 43138 | Oil & Gas Operator | Dec 2024 |
| 83 | Kingston Oil Corp | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2000 |
| 84 | Knox Energy Inc | New Albany, OH 43054 | Oil & Gas Operator | Dec 2024 |
| 85 | L & M Petroleum Co | Reno, OH 45773 | Oil & Gas Operator | Dec 1987 |
| 86 | Landprovest Inc | Cambridge, OH 43725 | Oil & Gas Operator | Dec 1993 |
| 87 | Leader Equities Inc | Columbus, OH 43214 | Oil & Gas Operator | Dec 1988 |
| 88 | Logan Clay Prod Company | Logan, OH 43138 | Oil & Gas Operator | Dec 2005 |
| 89 | Ludco Inc | Caledonia, OH 43314 | Oil & Gas Operator | Dec 1986 |
| 90 | Ludwig Cleo R | Caledonia, OH 43314 | Oil & Gas Operator | Dec 1987 |
| 91 | Luoil Inc | Corning, OH 43730 | Oil & Gas Operator | Dec 2024 |
| 92 | M & R Investments Ohio LLC | Birmingham, AL 35238 | Oil & Gas Operator | Dec 2019 |
| 93 | Madco Energy Corp | Logan, OH 43138 | Oil & Gas Operator | Dec 1987 |
| 94 | Marion Operating Corp | Marion, OH 43301 | Oil & Gas Operator | Dec 2020 |
| 95 | Marjac Energy Co | Bremen, OH 43107 | Oil & Gas Operator | Dec 1986 |
| 96 | McCandlish R L Oil Co Inc | Bremen, OH 43107 | Oil & Gas Operator | Dec 1997 |
| 97 | Meyer Richard C Inc | MT Gilead, OH 43338 | Oil & Gas Operator | Dec 1999 |
| 98 | MFC Drilling Inc | Coshocton, OH 43812 | Oil & Gas Operator | Dec 2024 |
| 99 | MH Oilfield Service LLC | Amesville, OH 45711 | Oil & Gas Operator | Dec 2023 |
| 100 | Mid-Con Petroleum Co Inc | Heath, OH 43056 | Oil & Gas Operator | Dec 2010 |