| 101 | Ralph L Albright Drilling | Reno, NV 89511-7627 | Oil & Gas Operator | Dec 1991 |
| 102 | Randall Florence | Albion, PA 16401-9768 | Gas Operator | Dec 2010 |
| 103 | Range Opr Co | Yatesboro, PA 16263-0235 | Oil & Gas Operator | Dec 1999 |
| 104 | Range Resources Appalachia LLC | Canonsburg, PA 15317 | Oil & Gas Operator | Dec 2025 |
| 105 | Rex Drummond | Conneaut, OH 44030-9678 | Oil & Gas Operator | Dec 2019 |
| 106 | Sandstone Resources | Saint Joseph, MO 64506 | Oil & Gas Operator | Dec 1995 |
| 107 | Schreiner Oil & Gas Inc | Prescott, AZ 86303 | Oil & Gas Operator | Dec 2023 |
| 108 | Seneca Mineral Co Inc | Erie, PA 16509-4250 | Gas Operator | Dec 2002 |
| 109 | Seneca Resources Co LLC | Cranberry Township, PA 16066 | Oil & Gas Operator | Dec 2025 |
| 110 | Shelex Drilling Inc | Lexington, KY 40523 | Oil & Gas Operator | Dec 2025 |
| 111 | Simpson Gary H | Albion, PA 16401-8008 | Gas Operator | Dec 2014 |
| 112 | Snyder Oil Corporation | Houston, TX 77024 | Oil & Gas Operator | Mar 2008 |
| 113 | Stedman Energy Inc | Chautauqua, NY 14722 | Oil & Gas Operator | Dec 2025 |
| 114 | Texas Meridian Operating Co. Inc | Houston, TX 77079 | Oil & Gas Operator | Oct 1993 |
| 115 | Timberline Energy Inc | Franklin, PA 16323-0269 | Oil & Gas Operator | Dec 2025 |
| 116 | Tipco | Shreveport, LA 71104-3047 | Oil & Gas Operator | May 1988 |
| 117 | Transp Investment Group | Fairview, PA 16415-1530 | Gas Operator | Dec 1999 |
| 118 | Troyer Energies Inc | Waterford, PA 16441-2809 | Gas Operator | Dec 2014 |
| 119 | Troyer Gas & Oil | Waterford, PA 16441-2843 | Gas Operator | Dec 2001 |
| 120 | Troyer Land Resources | Waterford, PA 16441-0367 | Gas Operator | Dec 2025 |
| 121 | TX Meridian Opr Co Inc | Houston, TX 77079-2461 | Gas Operator | Dec 1989 |
| 122 | Union City Boro Muni Auth Erie Cnty | Union City, PA 16438-1326 | Gas Operator | Dec 2024 |
| 123 | Universal Resources Holdings Inc | Dunkirk, NY 14048 | Oil & Gas Operator | Dec 2024 |
| 124 | Us Energy Dev Corp | Getzville, NY 14068-1558 | Oil & Gas Operator | Dec 2021 |
| 125 | Vineyard Oil & Gas Co | North East, PA 16428 | Oil & Gas Operator | Dec 2023 |
| 126 | Welch Foods Inc A Cooperative | North East, PA 16428-1209 | Gas Operator | Dec 1998 |
| 127 | Wilburn Wolfe L | Erie, PA 16506-5039 | Gas Operator | Dec 2000 |
| 128 | Wilkes Energy Inc | Akron, OH 44308 | Oil & Gas Operator | Dec 2022 |