| 1 | M. G. LILLIE 1 | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 2 | M. L. MARTIN STATE A2803 1 | Webb County, TX | Gas Property | Jan 2025 |
| 3 | M.G. LILLIE 1616 GU | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 4 | M.L.E.I. BRUNI MIN. TR | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 5 | M.M.A. CATTLE CO | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 6 | MACMAHON | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 7 | MALAKOFF | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 8 | MALTSBERGER | Webb County, TX | Gas Property | Feb 2025 |
| 9 | MANN TRUST - STATE | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 10 | MANRY STATE | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 11 | MARRS MCLEAN | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 12 | MARSHALL S.G | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 13 | MARSHALL S.G. B 1 | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 14 | MARSHALL-STATE | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 15 | MARTIN | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 16 | MARTIN | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 17 | MARTIN | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 18 | MARTIN J.C. III | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 19 | MARTIN S | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 20 | MARTIN STATE | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 21 | MARTIN-VOLZ | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 22 | MARTIN-VOLZ | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 23 | MARTIN-ZUCK GU 1H | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 24 | MARTINEZ | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 25 | MARTINEZ-BARRERA G | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 26 | MATA-THOMAS GU | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 27 | MATRIX CASPIAN 101H | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 28 | MATRIX CERRITO UNIT | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 29 | MATRIX LAND CO | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 30 | MAYERS | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 31 | MAYERS GAS UNIT | Webb County, TX | Oil & Gas Property | Sep 2024 |
| 32 | MCKENDRICK | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 33 | MCKENDRICK | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 34 | MCKENDRICK | Webb County, TX | Oil & Gas Property | Dec 2024 |
| 35 | MCLEAN, MARRS | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 36 | MEADOR | Webb County, TX | Oil & Gas Property | Apr 2024 |
| 37 | MEADOR 1451 | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 38 | MEADOR, BEASLEY | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 39 | MEADOR-MONNICH GU 1H | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 40 | MEEK RANCH | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 41 | MEITZEN 1 | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 42 | MIDDLETON | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 43 | MILAGROS | Webb County, TX | Gas Property | Jan 2025 |
| 44 | MOGLIA | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 45 | MONARCH-BRUNI | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 46 | MOOS H | Webb County, TX | Oil & Gas Property | Jan 2021 |
| 47 | MORENO | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 48 | MORENO ISIDRO ET AL | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 49 | MORGAN | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 50 | MORGENSTERN-FASKEN STATE GU | Webb County, TX | Oil & Gas Property | Jan 2025 |