| 1 | Altheirs Oil, Inc. | Corning, OH 43730 | Oil & Gas Operator | Dec 2023 |
| 2 | Belden & Blake Corporation | North Canton, OH 44720-0500-0500 | Oil & Gas Operator | Dec 2016 |
| 3 | Bowling Frank L & Jane C | Circleville, OH 43113 | Oil Operator | Dec 2023 |
| 4 | Cgas Exploration | Charleston, WV 25301 | Oil & Gas Operator | Dec 2006 |
| 5 | Chesapeake Appalachia LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Jan 2024 |
| 6 | Chuck Henry Energy LLC | Wellsville, NY 14895 | Oil Operator | Dec 2022 |
| 7 | Cortland Energy Co Inc | Cortland, OH 44410 | Oil & Gas Operator | Dec 2023 |
| 8 | Dalton & Hanna LTD | Wooster, OH 44691 | Oil & Gas Operator | Dec 2018 |
| 9 | Dart Oil & Gas Ohio LLC | Mason, MI 48854-0177-0177 | Oil Operator | Dec 2018 |
| 10 | David R Hill Inc | Byesville, OH 43723 | Oil & Gas Operator | Dec 2022 |
| 11 | Devore Anthony D | Gambier, OH 43022 | Oil & Gas Operator | Dec 2010 |
| 12 | Eastern Amer Energy Corp | Charleston, WV 25304 | Oil & Gas Operator | Dec 2006 |
| 13 | Explore Energy Corp. | Westerville, OH 43086 | Oil & Gas Operator | Dec 2016 |
| 14 | Geopetro LLC | Worthington, OH 43085-2316 | Oil & Gas Operator | Jan 2024 |
| 15 | Hocking Hills Energy And Well Service LLC | Logan, OH 43138 | Oil & Gas Operator | Dec 2022 |
| 16 | Houghton Investments LLC | Columbus, OH 43235 | Oil & Gas Operator | Dec 2023 |
| 17 | Howdyshell Pumping Inc | Logan, OH 43138 | Oil Operator | Dec 2022 |
| 18 | Kenoil LLC | Wooster, OH 44691 | Oil & Gas Operator | Dec 2022 |
| 19 | Layline Oil And Gas LLC | Houston, TX 77024 | Oil & Gas Operator | Jan 2024 |
| 20 | Marksmen Energy USA Inc | Worthington, OH 43085-1270-1270 | Oil Operator | Dec 2020 |
| 21 | MFC Drilling Inc | Coshocton, OH 43812 | Oil & Gas Operator | Dec 2022 |
| 22 | Murphy Oil Company Inc | Lancaster, OH 43130 | Oil & Gas Operator | Dec 2022 |
| 23 | Ngo Development Corp. | Newark, OH 43058 | Oil & Gas Operator | Dec 2023 |
| 24 | Northwood Energy Corp | Columbus, OH 43221 | Oil & Gas Operator | Dec 2023 |
| 25 | Ohio Energy Assets, Inc. | Laurelville, OH 43135 | Oil & Gas Operator | Dec 2014 |
| 26 | Ohio Production Corp | Westerville, OH 43081 | Oil & Gas Operator | Dec 2001 |
| 27 | Petrox, Inc | Streetsboro, OH 44241 | Oil & Gas Operator | Dec 2023 |
| 28 | R C Poling Co Inc | Junction City, OH 43748 | Oil & Gas Operator | Dec 2023 |
| 29 | Range Operating Company | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2000 |
| 30 | Red Bird Producing Co | Wooster, OH 44691 | Oil & Gas Operator | Dec 2023 |
| 31 | Red Man Oil, Co. | Albany, TX 76430 | Oil & Gas Operator | Apr 2024 |
| 32 | Redman E C /Redman Oil Co | Columbus, OH 43229 | Oil & Gas Operator | Dec 2002 |
| 33 | Tatum Petroleum Corporation | Zanesville, OH 43702 | Oil & Gas Operator | Dec 2008 |
| 34 | We Energy LLC | Columbus, OH 43229 | Oil Operator | Dec 2020 |