| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Marathon Oil Company | Houston, TX 77252 | Oil & Gas Operator | Jan 2026 |
| 2 | Maverick Exploration And Production Inc | Oil & Gas Operator | Jan 2026 | |
| 3 | Mercury Exploration Co | Fort Worth, TX 76104 | Oil & Gas Operator | Dec 2006 |
| 4 | Merit Energy Company | Dallas, TX 75240 | Oil & Gas Operator | Mar 2026 |
| 5 | Muskegon Development Company | MT Pleasant, MI 48858 | Oil & Gas Operator | Mar 2026 |
| 6 | Muskegon Operating Company LLC | Oil & Gas Operator | Nov 2025 |