| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Mariah Exploration LLC | Pawhuska, OK 74056 | Oil & Gas Operator | Oct 2008 |
| 2 | Marjo Incorporat | Oil & Gas Operator | Jun 1990 | |
| 3 | Masek Oil Compan | Oil Operator | Feb 1984 | |
| 4 | Maxcrude, LLC | Winfield, KS 67156 | Oil & Gas Operator | Jun 2025 |
| 5 | McCann Drilling | Oil & Gas Operator | Oct 1996 | |
| 6 | McCann Drilling, Inc. | Bartlesville, OK 74003 | Oil Operator | Mar 2011 |
| 7 | Metro Oil Compan | Oil Operator | Jan 1991 | |
| 8 | Meyer Douglas P | Longmont, CO 80501 | Oil & Gas Operator | Aug 2006 |
| 9 | Midwestern Oil C | Oil & Gas Operator | May 1995 | |
| 10 | Morrow, Joe | Farmington, NM 87401 | Oil Operator | Jan 1993 |
| 11 | Murfin Drilling Company Inc | Wichita, KS 67202 | Oil & Gas Operator | Aug 2025 |