| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Majoil Company | Oklahoma City, OK 73112 | Oil & Gas Operator | Dec 1996 |
| 2 | Marathon Oil Company | Houston, TX 77252 | Oil & Gas Operator | Aug 2025 |
| 3 | McClure Oil Company, Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 4 | Mercury Exploration Co | Fort Worth, TX 76104 | Oil & Gas Operator | Dec 2006 |
| 5 | Miller Energy Company II LLC | Oil & Gas Operator | Aug 2025 | |
| 6 | Muskegon Development Company | MT Pleasant, MI 48858 | Oil & Gas Operator | Oct 2025 |
| 7 | Muskegon Operating Company LLC | Oil & Gas Operator | Aug 2025 |