| 1 | A & A Producers & Operators/Energy Prop. | | Oil & Gas Operator | Dec 1996 |
| 2 | Addington Exploration, LLC | | Oil & Gas Operator | Dec 2006 |
| 3 | Alliance Petroleum Co., LLC | | Oil & Gas Operator | Dec 2021 |
| 4 | Base Petroleum, Inc. | South Charleston, WV 25309-0000 | Oil & Gas Operator | Dec 2021 |
| 5 | Blazer Energy Corp. | Alexandria, VA 22314 | Oil & Gas Operator | Dec 2014 |
| 6 | Boone East Development Co., LLC | Julian, WV 25529 | Gas Operator | Dec 2019 |
| 7 | Bowie Inc | Clarksburg, WV 26301 | Oil & Gas Operator | Dec 2008 |
| 8 | Braxton Oil And Gas Corp. | Oklahoma City, OK 73118 | Oil & Gas Operator | Dec 2021 |
| 9 | C. J. Services | | Oil & Gas Operator | Sep 2016 |
| 10 | Cabot Oil & Gas Corporation | Houston, TX 77024 | Oil & Gas Operator | Feb 2026 |
| 11 | Cameron Oil & Gas Company | | Gas Operator | Dec 2016 |
| 12 | Cane Creek Energy, LLC | Charleston, WV 25314 | Oil & Gas Operator | Dec 2021 |
| 13 | Capital Energy, LLC | Ripley, WV 25271 | Oil & Gas Operator | Dec 2021 |
| 14 | Chesapeake Appalachia, LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Dec 2025 |
| 15 | Classic Oil & Gas Resources Inc | | Gas Operator | Dec 2008 |
| 16 | CNG Producing Company | New Orleans, LA 70112 | Oil & Gas Operator | Dec 2015 |
| 17 | CNX Gas Company LLC | Canonsburg, PA 15317 | Oil & Gas Operator | Mar 2026 |
| 18 | Columbia Gas Transmission, LLC | Charleston, WV 25314 | Oil & Gas Operator | Dec 2021 |
| 19 | Columbia Natural Resources, LLC | Charleston, WV 23502 | Oil & Gas Operator | Dec 2021 |
| 20 | Consol Gas Company | Canonsburg, PA 15317 | Oil & Gas Operator | Dec 2021 |
| 21 | Core Appalachia Operating LLC | Charleston, WV 25362 | Oil & Gas Operator | Dec 2024 |
| 22 | D. C. Malcolm, Inc. | Charleston, WV 25301 | Oil & Gas Operator | Dec 2021 |
| 23 | Dale, David Dba DD Oil Company | Spencer, WV 25276-0406 | Oil & Gas Operator | Dec 2021 |
| 24 | Diversified Production LLC | Keithville, LA 71047 | Oil & Gas Operator | Jun 2026 |
| 25 | Dominion Energy Transmission, Inc. | | Oil & Gas Operator | Dec 2019 |
| 26 | Dominion Exploration & Production Inc | Houston, TX 77060 | Oil & Gas Operator | Apr 2015 |
| 27 | East Resources, Inc. | Sewickley, PA 15143 | Oil & Gas Operator | Dec 2021 |
| 28 | Eastern American Energy Corp | | Oil & Gas Operator | Dec 2008 |
| 29 | Eastern Gas Transmission And Storage, Inc | | Oil & Gas Operator | Dec 2021 |
| 30 | Elahs Gas Co., Inc. | | Oil & Gas Operator | Dec 2021 |
| 31 | Energy Corporation Of America | Charleston, WV 25311 | Oil & Gas Operator | Dec 2024 |
| 32 | Enervest Operating, L.L.C., A Limited Liability Company | | Oil & Gas Operator | Dec 2019 |
| 33 | Eqt Production Company | Pittsburg, PA 15222 | Oil & Gas Operator | Mar 2026 |
| 34 | Equitable Production Company | Charleston, WV 25302 | Oil & Gas Operator | Dec 2007 |
| 35 | Exco Resources (WV), Inc. | | Oil & Gas Operator | Dec 2020 |
| 36 | Glover Oilfield Service, Inc. | Olney, IL 62450 | Oil & Gas Operator | Dec 2013 |
| 37 | Greylock Conventional, LLC | Charleston, WV 25311 | Oil & Gas Operator | Mar 2026 |
| 38 | Greylock Opco LLC | Charleston, WV 25311 | Oil & Gas Operator | Dec 2025 |
| 39 | Hager Gas Co | Danville, WV 25053 | Gas Operator | Dec 2010 |
| 40 | Jackson Resources Co | | Oil & Gas Operator | Dec 2018 |
| 41 | K. Petroleum, Inc. | Gahanna, OH 43230 | Oil & Gas Operator | Mar 2026 |
| 42 | Mahue Construction Company | Huntington, WV 25724-2345 | Oil & Gas Operator | Dec 2021 |
| 43 | Mann Energy, Inc. | Charleston, WV 25332-3242 | Oil & Gas Operator | Nov 2018 |
| 44 | New River Energy Corporation | | Gas Operator | Dec 2017 |
| 45 | Northstar Energy Corporation | Charleston, WV 25337-0000 | Oil & Gas Operator | Dec 2021 |
| 46 | Nytis Exploration Company LLC | Lexington, KY 40509 | Oil & Gas Operator | Dec 2021 |
| 47 | Operator Unknown | Charleston, WV 25304-0000 | Oil & Gas Operator | Dec 2021 |
| 48 | P & S Oil And Gas Corporation | | Gas Operator | Dec 1996 |
| 49 | Patchwork Oil & Gas LLC | Davisville, WV 26142 | Oil & Gas Operator | Dec 2021 |
| 50 | Peake Operating Company | | Oil & Gas Operator | Dec 1999 |
| 51 | Penn VIrginia Oil & Gas Corp | Houston, TX 77024 | Oil & Gas Operator | Dec 2023 |
| 52 | Petroleum Development Corporation | Denver, CO 80202 | Oil & Gas Operator | Dec 2017 |
| 53 | Pillar Energy, LLC | Charleston, WV 25312-5987 | Oil & Gas Operator | Dec 2025 |
| 54 | Prime Operating Company | Midland, TX 79705 | Oil & Gas Operator | Jun 2026 |
| 55 | Quality Natural Gas, LLC | Allen, KY 41601 | Oil & Gas Operator | Dec 2024 |
| 56 | Ross & Wharton Gas Co Inc | Buckhannon, WV 26201 | Oil & Gas Operator | Dec 2021 |
| 57 | Southeastern Gas Company | | Oil & Gas Operator | Dec 2019 |
| 58 | SWV Energy Operating LLC | Spring, TX 77379 | Gas Operator | Dec 2018 |
| 59 | T & F Exploration, LP | Pittsburgh, PA 15241-1375 | Oil & Gas Operator | Oct 2025 |
| 60 | Trittipo, J. L. | | Oil & Gas Operator | Nov 1997 |
| 61 | Umc Petroleum Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 62 | Union Oil Co Of California | Midland, TX 79706 | Oil & Gas Operator | Jan 2022 |
| 63 | W. E. B. Well Tending Service, Inc. | Vienna, WV 26105 | Oil & Gas Operator | Nov 2011 |
| 64 | Weva Oil Corp. | | Oil & Gas Operator | Nov 2019 |