Oil & Gas Companies in Milam County, TX
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | Magnolia Oil & Gas Operating LLC | Houston, TX 77046 | Oil & Gas Operator | Oct 2025 |
| 2 | Magnum Oilfield Services LLC | Bakersfield, CA 93309 | Oil Operator | Oct 2025 |
| 3 | Mascot Oil Company | Schulenburg, TX 78956 | Oil & Gas Operator | Oct 2025 |
| 4 | McCrary Oil Company, Inc. | College Sta, TX 77840 | Oil & Gas Operator | Sep 2019 |
| 5 | McDonald Production | Lubbock, TX 79408 | Oil & Gas Operator | Mar 2003 |
| 6 | McMahon-Bullington Drilling Co. | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 1996 |
| 7 | Micro Operating, Inc. | Bryan, TX 77807 | Oil & Gas Operator | Oct 2025 |
| 8 | Mid-Gulf, Inc. | Brenham, TX 77834 | Oil & Gas Operator | Mar 2008 |
| 9 | Midstates Corporation | San Antonio, TX 78217 | Oil & Gas Operator | Oct 2025 |
| 10 | Mobile Production Systems, Inc. | Austin, TX 78711 | Oil & Gas Operator | Feb 1995 |
| 11 | Mojo Exploration & Production, LLC | Rockdale, TX 76567 | Oil Operator | Oct 2025 |
| 12 | Mueller Engineering Corp. | Corpus Chrsti, TX 78476 | Oil & Gas Operator | Feb 2002 |
Production numbers shown above are only for Milam County, TX and for the production period listed.