Oil & Gas Companies in Schleicher 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 | Maralo, Inc. | Midland, TX 79702 | Oil & Gas Operator | Dec 1998 |
| 3 | Marathon Oil Company | Houston, TX 77252 | Oil & Gas Operator | Aug 2025 |
| 4 | Mariner Energy, Inc. | Houston, TX 77042 | Oil & Gas Operator | Nov 2010 |
| 5 | Marquee Corporation | Houston, TX 77024 | Oil & Gas Operator | Oct 2025 |
| 6 | Marshall & Winston, Inc. | Midland, TX 79710 | Oil & Gas Operator | Aug 2025 |
| 7 | Martin, Jimmy Inc | San Angelo, TX 76904 | Oil & Gas Operator | Oct 2025 |
| 8 | Mayjac I, LLC | Midland, TX 79705 | Oil & Gas Operator | Oct 2025 |
| 9 | Mayo, Eddie | Fredericksbrg, TX 78624 | Oil & Gas Operator | Oct 2025 |
| 10 | MBR Resources, Inc. | Tulsa, OK 74119 | Oil & Gas Operator | Oct 2025 |
| 11 | McCammon Oil & Gas, Inc. | San Angelo, TX 76902 | Oil & Gas Operator | Oct 2025 |
| 12 | McClymond, LTD. | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2009 |
| 13 | McDonald Production | Lubbock, TX 79408 | Oil & Gas Operator | Mar 2003 |
| 14 | McDonnold Operating, Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 15 | McEna Inc | Tulsa, OK 74135 | Oil & Gas Operator | Jul 2005 |
| 16 | McGuffin, Joe Jr. | Christoval, TX 76935 | Oil & Gas Operator | Oct 2025 |
| 17 | Meador, T. C. | San Angelo, TX 76902 | Oil & Gas Operator | Oct 2025 |
| 18 | Mercury Exploration Co | Fort Worth, TX 76104 | Oil & Gas Operator | Dec 2006 |
| 19 | Mercury Operating, LLC | Dallas, TX 75208 | Oil & Gas Operator | Oct 2025 |
| 20 | Merit Energy Company | Dallas, TX 75240 | Oil & Gas Operator | Oct 2025 |
| 21 | Merit Oil Company | San Angelo, TX 76901 | Oil & Gas Operator | May 1994 |
| 22 | Mexco Energy Corporation | Midland, TX 79702 | Oil & Gas Operator | Feb 2020 |
| 23 | MGF Oil Corporation | Tulsa, OK 74121 | Oil & Gas Operator | Jun 1998 |
| 24 | Midenergy Operating, LLC | Houston, TX 77024 | Oil & Gas Operator | Oct 2025 |
| 25 | Midpar L.P. | Midland, TX 79702 | Oil & Gas Operator | Feb 1995 |
| 26 | Miltex Oil Company | Boerne, TX 78006 | Oil & Gas Operator | Oct 2025 |
| 27 | Mitchell Energy Corp | Houston, TX 77002 | Oil & Gas Operator | Aug 2013 |
| 28 | MJM Oil & Gas, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Aug 2003 |
| 29 | Mobil Producing TX. & N.M. Inc. | Spring, TX 77389 | Oil & Gas Operator | Oct 2025 |
| 30 | Moncrief W A Jr | Fort Worth, TX 76102 | Oil & Gas Operator | Aug 2025 |
| 31 | Montgomery Petroleum, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Aug 2007 |
| 32 | Morris, W. Dale Inc. | Mineral Wells, TX 76068 | Oil & Gas Operator | Oct 2025 |
| 33 | Morrow Resources, Inc. | San Angelo, TX 76904 | Oil & Gas Operator | Oct 2004 |
| 34 | Mosaic Texas LLC | Dallas, TX 75205 | Oil & Gas Operator | Oct 2025 |
| 35 | Mr Oil Company | Monahans, TX 79756 | Oil & Gas Operator | Nov 2004 |
| 36 | Mulloy Operating, Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 37 | MW Petroleum Corporation | Houston, TX 77056 | Oil & Gas Operator | Mar 2015 |
Production numbers shown above are only for Schleicher County, TX and for the production period listed.