| 1 | Alliance Petroleum Co., LLC | | Oil & Gas Operator | Dec 2021 |
| 2 | Arsenal Resources LLC | Wexford, PA 15090 | Oil & Gas Operator | Dec 2021 |
| 3 | Berea Oil & Gas Corp | Buffalo, NY 14202 | Oil & Gas Operator | Dec 2002 |
| 4 | Beta Helix Energy LLC | | Oil & Gas Operator | Dec 2021 |
| 5 | Blackrock Enterprises, LLC | Salem, WV 26426 | Oil & Gas Operator | Dec 2021 |
| 6 | Blazer Energy Corp. | Alexandria, VA 22314 | Oil & Gas Operator | Dec 2014 |
| 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 | Chesapeake Appalachia LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Sep 2024 |
| 10 | Chestnut Ridge Storage LLC | San Diego, CA 92121-1008 | Gas Operator | Dec 2019 |
| 11 | CNG Producing Company | New Orleans, LA 70112 | Oil & Gas Operator | Dec 2015 |
| 12 | Columbia Natural Resources, LLC | Charleston, WV 23502 | Oil & Gas Operator | Dec 2021 |
| 13 | Diversified Production LLC | Keithville, LA 71047 | Oil & Gas Operator | Dec 2024 |
| 14 | Diversified Resources, Inc. | Jackson Center, PA 16133 | Oil & Gas Operator | Dec 2020 |
| 15 | Dominion Energy Transmission, Inc. | | Oil & Gas Operator | Dec 2019 |
| 16 | Dominion Exploration & Production Inc | Houston, TX 77060 | Oil & Gas Operator | Apr 2015 |
| 17 | Eastern American Energy Corp | | Oil & Gas Operator | Dec 2008 |
| 18 | Energy Corporation Of America | Charleston, WV 25311 | Oil & Gas Operator | Dec 2022 |
| 19 | Eqt Production Company | Pittsburg, PA 15222 | Oil & Gas Operator | Sep 2024 |
| 20 | Equitable Production Company | Charleston, WV 25302 | Oil & Gas Operator | Dec 2007 |
| 21 | Exco Resources (WV), Inc. | | Oil & Gas Operator | Dec 2020 |
| 22 | Fox Oil And Gas Inc | Houston, TX 77002 | Gas Operator | Dec 2002 |
| 23 | Greylock Conventional, LLC | Charleston, WV 25311 | Oil & Gas Operator | Sep 2024 |
| 24 | Hope Gas, Inc. | Richmond, VA 23261 | Oil & Gas Operator | Dec 2010 |
| 25 | K. Petroleum, Inc. | Gahanna, OH 43230 | Oil & Gas Operator | Sep 2024 |
| 26 | M4 Energy, LLC | Watsontown, PA 17777-1133 | Oil & Gas Operator | Dec 2023 |
| 27 | Megaenergy Operating, Inc. | Edmond, OK 73034 | Oil & Gas Operator | Jul 2015 |
| 28 | Mineral Resource Management, L.L.C. | Jane Lew, WV 26378 | Oil & Gas Operator | Dec 2021 |
| 29 | Nanco Resources, LLC | | Gas Operator | Dec 2021 |
| 30 | Penneco Oil Company, Inc. | Delmont, PA 15626-2408 | Oil & Gas Operator | Dec 2023 |
| 31 | Petroleum Development Corporation | Denver, CO 80202 | Oil & Gas Operator | Dec 2017 |
| 32 | Pillar Energy, LLC | Charleston, WV 25312-5987-5987 | Oil & Gas Operator | Dec 2023 |
| 33 | Range Resources Appalachia LLC | Canonsburg, PA 15317 | Oil & Gas Operator | Sep 2024 |
| 34 | Ross & Wharton Gas Co Inc | Buckhannon, WV 26201 | Oil & Gas Operator | Dec 2021 |
| 35 | Saga Petroleum LLC Of Colorado | Norman, OK 73072 | Oil & Gas Operator | Dec 2024 |
| 36 | Swift Energy Company | Houston, TX 77060 | Oil & Gas Operator | Mar 2021 |
| 37 | SWN Production Company, LLC | Spring, TX 77391 | Oil & Gas Operator | Sep 2024 |
| 38 | Texas Keystone Inc | Oakmont, PA 15139-2072 | Oil & Gas Operator | Nov 2017 |
| 39 | Westmoreland Gas, LLC | | Oil & Gas Operator | Dec 2021 |