| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | M. W. Maxwell | Oil & Gas Operator | Apr 1990 | |
| 2 | Maddox Oil & Gas | Gas Operator | Jun 1982 | |
| 3 | Mark V Petroleum Company | Oil & Gas Operator | Feb 2020 | |
| 4 | Markham Enterprises Inc | Oil & Gas Operator | May 1981 | |
| 5 | Marlin Exploration, Inc. | Oil & Gas Operator | Oct 2006 | |
| 6 | MBM Partnership | Gas Operator | Nov 1991 | |
| 7 | McRae Exploration, Inc. | Oil & Gas Operator | Mar 1984 | |
| 8 | Mid South Oil & Gas Expl Inc | Oil & Gas Operator | Jan 1992 | |
| 9 | Miles Oil & Gas Co. | Oil & Gas Operator | Feb 1988 |