| Property Name | Property Location | Property Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | M. SAENZ STATE | Starr County, TX | Oil & Gas Property | Apr 2018 |
| 2 | MARGO | Starr County, TX | Oil & Gas Property | Sep 2025 |
| 3 | MARGO R.E. EST | Starr County, TX | Oil & Gas Property | Sep 2025 |
| 4 | MARGO/PENA | Starr County, TX | Oil & Gas Property | Sep 2025 |
| 5 | MARRS-MCLEAN | Starr County, TX | Oil & Gas Property | Aug 2025 |
| 6 | MARTINEZ | Starr County, TX | Oil & Gas Property | Sep 2025 |
| 7 | MARTINEZ | Starr County, TX | Oil & Gas Property | Sep 2025 |
| 8 | MAYFAIR LA BRISA | Starr County, TX | Oil & Gas Property | Sep 2025 |
| 9 | MCCLURE NORTH | Starr County, TX | Oil & Gas Property | May 2023 |
| 10 | MCGILL | Starr County, TX | Oil & Gas Property | Sep 2025 |
| 11 | MCKINNEY, MRS. A | Starr County, TX | Oil & Gas Property | Sep 1996 |
| 12 | MCLEAN MARRS | Starr County, TX | Oil & Gas Property | Aug 2025 |
| 13 | MINITA SHALLOW | Starr County, TX | Oil & Gas Property | Sep 2025 |
| 14 | MONTALVO | Starr County, TX | Oil & Gas Property | Sep 2025 |
| 15 | MONTALVO B (NORTH) UNIT 1 | Starr County, TX | Oil & Gas Property | Sep 2025 |
| 16 | MORSE-FORSTER | Starr County, TX | Oil & Gas Property | Sep 2025 |
| 17 | MUNOZ | Starr County, TX | Oil & Gas Property | Mar 2025 |