| 1 | May Gas, Inc. | | Oil & Gas Operator | Dec 2008 |
| 2 | McCullough, Richard F. | Pennsboro, WV 26415 | Oil & Gas Operator | Dec 2021 |
| 3 | MCF Co. | | Oil & Gas Operator | Dec 2011 |
| 4 | McKinney, Jason G. | | Oil Operator | Dec 2021 |
| 5 | Meadows Jr, S. L. Production Inc. | Ravenswood, WV 26164-0022 | Oil & Gas Operator | Dec 2021 |
| 6 | Meridian Exploration Corp. | Pittsburgh, PA 15222 | Oil & Gas Operator | Dec 2021 |
| 7 | Mert Development Inc | | Oil & Gas Operator | Dec 2021 |
| 8 | Mineral Resource Management, L.L.C. | Jane Lew, WV 26378 | Oil & Gas Operator | Dec 2021 |
| 9 | Moody Oil & Gas Co. | Bridgeport, WV 26330-1051 | Oil & Gas Operator | Dec 2004 |
| 10 | Mountain State Oil Company, L..L.C. | Pennsboro, WV 26415-0014 | Oil & Gas Operator | Dec 2021 |
| 11 | Mountain State Well Tending | Hurricane, WV 25526-0000 | Oil & Gas Operator | Dec 2021 |
| 12 | Mountain V Oil & Gas, Inc. | Buckhannon, WV 26201 | Oil & Gas Operator | Dec 2021 |
| 13 | Mountain V, LLC | Buckhannon, WV 26201 | Oil & Gas Operator | Dec 2021 |
| 14 | Murray Hill Energy, Inc. | Bridgeport, WV 26330 | Oil & Gas Operator | Dec 2017 |
| 15 | Murvin & Meier Oil Co. | | Oil & Gas Operator | Dec 2020 |
| 16 | Mutschelknaus, Clarence W | Salem, WV 26426-0351 | Oil & Gas Operator | Dec 2021 |