| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Maguire Oil Company | Dallas, TX 75270 | Oil & Gas Operator | Mar 2015 |
| 2 | Mallard Exploration, Inc. | Oil & Gas Operator | Sep 1975 | |
| 3 | Marco Land & Petroleum, Inc. | Oil & Gas Operator | Jun 2000 | |
| 4 | Mayne & Mertz, Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2013 |
| 5 | Merit Energy Co. Dba Alabama Merit Energy Co., Inc. | Oil & Gas Operator | Aug 2005 | |
| 6 | Mobil Oil Exploration & Producing Southeast, Inc. | Oil & Gas Operator | Dec 2023 |