| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | M. H. Whittier Energy LLC | Oil & Gas Operator | Sep 1996 | |
| 2 | Marlin Pacific Oil & Gas | Oil & Gas Operator | Dec 2003 | |
| 3 | McFarland Energy, Inc. | New Orleans, LA 70160 | Oil & Gas Operator | Dec 2009 |
| 4 | McKean Bros. | Oil & Gas Operator | Dec 1997 | |
| 5 | Mobil Oil Corporation | Houston, TX 77210 | Oil & Gas Operator | Jun 2016 |
| 6 | Monument Production Inc. | Oil & Gas Operator | Dec 2011 |