| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Magnum Petroleum, Inc. | Palm Desert, CA 92260 | Oil & Gas Operator | Nov 2013 |
| 2 | Marathon Oil Company | Houston, TX 77024 | Oil & Gas Operator | Sep 2024 |
| 3 | Maynard Oil Co. | Denver, CO 80202 | Oil & Gas Operator | Sep 2004 |
| 4 | McBee Operating Company, L.L.C. | Dallas, TX 75209 | Oil & Gas Operator | Nov 2024 |
| 5 | Midcoast G & P (East Texas) L.P. | Houston, TX 77002 | Oil & Gas Operator | Nov 2024 |
| 6 | Mobil Producing TX. & N.M. Inc. | Spring, TX 77389 | Oil & Gas Operator | Nov 2024 |
| 7 | Moncrief W A Jr | Fort Worth, TX 76102 | Oil & Gas Operator | Sep 2024 |