| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Marathon Oil Company | Houston, TX 77252 | Oil & Gas Operator | Aug 2025 |
| 2 | McClure Oil Company, Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 3 | McCool John E | Youngsville, PA 16371 | Oil & Gas Operator | Jul 2025 |
| 4 | Mid Michigan Gas Storage Co | Oil & Gas Operator | Mar 2022 | |
| 5 | Miller Energy Company II LLC | Oil & Gas Operator | Aug 2025 | |
| 6 | Miracle Petroleum LLC | Oil & Gas Operator | Oct 2018 | |
| 7 | Missaukee Oil And Gas Company LLC | Oil & Gas Operator | Jun 2025 |