| 1 | G & G Gas Inc | New Bethlehem, PA 16242-4118 | Oil & Gas Operator | Dec 2025 |
| 2 | Galati Enterprises Inc | Jamestown, NY 14701-9358 | Oil & Gas Operator | Dec 2018 |
| 3 | Gallatin Fuels, Inc. | Uniontown, PA 15401-5513 | Oil & Gas Operator | Dec 2020 |
| 4 | Garold M Oakes | Kane, PA 16735-0442 | Oil & Gas Operator | Dec 2009 |
| 5 | Gas & Oil Co | Apollo, PA 15613-1108 | Oil & Gas Operator | Dec 2007 |
| 6 | Gas & Oil MGMT Assn Inc | Youngsville, PA 16371-1602 | Oil & Gas Operator | Dec 2025 |
| 7 | Gas Acquisition Co LTD | Akron, OH 44308 | Oil & Gas Operator | Dec 2017 |
| 8 | Gasp Investment LLC | Cherry Tree, PA 15724-7704 | Oil & Gas Operator | Dec 2025 |
| 9 | Gass Energy LLC | Sugar Grove, PA 16350 | Gas Operator | Dec 2025 |
| 10 | Gastar Expl Inc | Houston, TX 77010-3131 | Oil & Gas Operator | Dec 2015 |
| 11 | Geer I L | Clarendon, PA 16313-0126 | Oil & Gas Operator | Dec 2013 |
| 12 | General Electric Company | Erie, PA 16531-0001 | Oil & Gas Operator | Sep 1987 |
| 13 | Geopetro LLC | Worthington, OH 43085-2316 | Oil & Gas Operator | Dec 2025 |
| 14 | Georgeanne & Thomas E Beresnyak | Home, PA 15747-6417 | Gas Operator | Dec 2018 |
| 15 | Glendale Gas Venture | Homer City, PA 15748-9232 | Gas Operator | Dec 2024 |
| 16 | Glenn Gas & Oil Co | Sigel, PA 15860-3234 | Oil & Gas Operator | Dec 2010 |
| 17 | Glenn Perry W | Sigel, PA 15860-3234 | Gas Operator | Dec 2019 |
| 18 | Goe Pro Inc | Albion, PA 16401-9717 | Oil & Gas Operator | Dec 1991 |
| 19 | Graham Michael D | Oakdale, PA 15071-1088 | Oil & Gas Operator | Dec 2021 |
| 20 | Great Oak Energy, Inc. | Oakmont, PA 15139-2003 | Oil & Gas Operator | Feb 2021 |
| 21 | Great Plains Oper LLC Dba Great MTN Oper | Grapevine, TX 76051-5477 | Gas Operator | Nov 2015 |
| 22 | Greene Energy LLC | Pittsburgh, PA 15241-1405 | Gas Operator | Dec 2006 |
| 23 | Greene Mary E | Springboro, PA 16435-1635 | Oil & Gas Operator | Dec 2014 |
| 24 | Greenfield Baptist CH | North East, PA 16428-5610 | Gas Operator | Dec 2025 |
| 25 | Greenridge Oil Inc | New Freeport, PA 15352-1560 | Oil & Gas Operator | Dec 2025 |
| 26 | Greenway Energy LLC | Mayville, NY 14757 | Oil & Gas Operator | Dec 2025 |
| 27 | Greylock Conventional, LLC | Charleston, WV 25311 | Oil & Gas Operator | Dec 2025 |
| 28 | Greylock Opco LLC | Charleston, WV 25311 | Oil & Gas Operator | Dec 2025 |
| 29 | Greylock Production LLC | Charleston, WV 25311-1264 | Oil & Gas Operator | Dec 2025 |
| 30 | Guardian Exploration LLC | Hunt, TX 78024-0225 | Oil & Gas Operator | Dec 2011 |