| 1 | A Berry Enterprises LLC | Freeport, OH 43973 | Oil & Gas Operator | Dec 2023 |
| 2 | Aim Energy LLC | North Canton, OH 44720 | Oil & Gas Operator | Dec 2023 |
| 3 | Alliance Petroleum Corporation | Canton, OH 44718-2553-2553 | Oil & Gas Operator | Dec 2019 |
| 4 | Alsid Oil & Gas | Hanoverton,, OH 44423 | Oil & Gas Operator | Dec 2003 |
| 5 | Am-Tek Oil Inc | New Philadelphia, OH 44663 | Oil & Gas Operator | Dec 2022 |
| 6 | American Petroleum Corp | Addison, TX 75001 | Oil & Gas Operator | Dec 2024 |
| 7 | An-Car Oil Co, Inc | Owensboro, KY 42302-1329-1329 | Oil & Gas Operator | Dec 2014 |
| 8 | Anadarko E&P Onshore LLC | Houston, TX 77046 | Oil & Gas Operator | Dec 2024 |
| 9 | Antero Resources Corporation | Denver, CO 80202 | Oil & Gas Operator | Sep 2024 |
| 10 | Appalachian Ener Tech Inc | Clearwater, FL 33518 | Oil & Gas Operator | Dec 2001 |
| 11 | Appalachian Petrol Corp | Girard, OH 44420 | Oil & Gas Operator | Dec 1989 |
| 12 | Arapaho Ventures Of Ny | Englewood, CO 80155 | Oil & Gas Operator | Dec 1990 |
| 13 | Armstrong Robert D | New Matamoras, OH 45767 | Oil & Gas Operator | Dec 2023 |
| 14 | Artex Energy Group LLC | Marietta, OH 45750-5362-5362 | Oil & Gas Operator | Jun 2022 |
| 15 | Artex Oil Company | Marietta, OH 45750 | Oil & Gas Operator | Dec 2023 |
| 16 | Ascent Resources Utica LLC | Oklahoma City, OK 73116 | Oil & Gas Operator | Sep 2024 |
| 17 | Atlas Energy Group Inc | Uniontown, OH 44685-9575-9575 | Oil & Gas Operator | Dec 2011 |
| 18 | Atlas Noble LLC | Fort Worth, TX 76116-5423-5423 | Oil & Gas Operator | Jun 2020 |