Oil & Gas Companies in Baylor County, TX
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | M5 Standing Energy, LLC | Decatur, TX 76234 | Oil & Gas Operator | Oct 2025 |
| 2 | Marshall & Winston, Inc. | Midland, TX 79710 | Oil & Gas Operator | Aug 2025 |
| 3 | Martin Petroleum Corp. | Graham, TX 76450 | Oil & Gas Operator | Oct 2025 |
| 4 | Martin Well Service | Graham, TX 76450 | Oil & Gas Operator | Jun 2015 |
| 5 | Mash Oilfield Services, LP | Graham, TX 76450 | Oil & Gas Operator | Oct 2025 |
| 6 | Mayfield Engineering Service | Tulsa, OK 74104 | Oil & Gas Operator | Oct 2025 |
| 7 | McMahon-Bullington Drilling Co. | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 1996 |
| 8 | Memorial Production Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Oct 2025 |
| 9 | Mercury Exploration Co | Fort Worth, TX 76104 | Oil & Gas Operator | Dec 2006 |
| 10 | Mercury Operating, LLC | Dallas, TX 75208 | Oil & Gas Operator | Oct 2025 |
| 11 | Merit Energy Company | Dallas, TX 75240 | Oil & Gas Operator | Oct 2025 |
| 12 | Metano Energy III, LP | Tulsa, OK 74121 | Oil & Gas Operator | Oct 2025 |
| 13 | Midwestern Energy | Mankato, MN 56003 | Oil & Gas Operator | Oct 2025 |
| 14 | Millennium Operating Company | Houston, TX 77057 | Oil & Gas Operator | Oct 2025 |
| 15 | Mitchell Energy Corp | Houston, TX 77002 | Oil & Gas Operator | Aug 2013 |
| 16 | MJM Oil & Gas, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Aug 2003 |
| 17 | Mobil Petro Vac, Inc. | Duncan, OK 73533 | Oil & Gas Operator | Oct 2025 |
| 18 | Mosaic Oil LLC | Dallas, TX 75205 | Oil & Gas Operator | Oct 2025 |
| 19 | Mosaic Texas LLC | Dallas, TX 75205 | Oil & Gas Operator | Oct 2025 |
| 20 | Myers, James B. | Olney, TX 76374 | Oil & Gas Operator | Oct 2025 |
Production numbers shown above are only for Baylor County, TX and for the production period listed.