| Williamson San Andres Unit O-10-23996 | Baker Operating, Inc. only | Goldsmith, W. (San Andres) | Ector | 27 | 302K | 812K | by Jan 1993 – Aug 2026 |
| Williamson, J. M. "A" O-10-33083 | Raptor Resources, Inc. only | Goldsmith, W. (San Andres) | Ector | 6 | 200K | 228K | by Jan 1993 – Aug 2026 |
| TXL -P- O-10-49708 | BCP Resources, LLC only | Goldsmith, W. (San Andres) | Ector | 2 | 80.8K | 0 | Mar 2018 – Aug 2026 |
| West -28- O-10-32606 | Clear Water Inc. only | Goldsmith, W. (San Andres) | Ector | 4 | 77.2K | 611K | by Jan 1993 – Aug 2026 |
| TXL -P- O-10-15854 | Baker Operating, Inc. only | Goldsmith, W. (San Andres) | Ector | 4 | 64.7K | 226K | by Jan 1993 – Aug 2026 |
| Cummins -A- O-10-31798 | Raptor Resources, Inc. only | Goldsmith, W. (San Andres) | Ector | 2 | 62.3K | 216K | by Jan 1993 – Aug 2026 |
| Parker, J. E. O-10-49711 | Schlachter Operating Corporation only | Goldsmith, W. (San Andres) | Ector | 8 | 59.9K | 5.56K | Mar 2018 – Aug 2026 |
| Parker -B- O-10-49709 | Dinero Operating Company only | Goldsmith, W. (San Andres) | Ector | 6 | 59.5K | 6.11K | Mar 2018 – Aug 2026 |
| Cummins -B- O-10-31987 | Raptor Resources, Inc. only | Goldsmith, W. (San Andres) | Ector | 2 | 47.9K | 193K | by Jan 1993 – Aug 2026 |
| Cummins -G- O-10-20627 | Hilcorp Energy Company only | Goldsmith, W. (San Andres) | Ector | 2 | 35.5K | 114K | by Jan 1993 – Dec 2019 |
| T X L -W- O-10-19664 | Baker Operating, Inc. only | Goldsmith, W. (San Andres) | Ector | 3 | 33K | 123K | by Jan 1993 – Aug 2026 |
| Cummins, H. E., Est. O-10-13728 | Octane Energy Operating, LLC only | Goldsmith, W. (San Andres) | Ector | 2 | 32.2K | 272K | by Jan 1993 – Aug 2026 |
| Cummins -C- O-10-32718 | Raptor Resources, Inc. only | Goldsmith, W. (San Andres) | Ector | 2 | 32.1K | 206K | by Jan 1993 – Aug 2026 |
| Cummins O-10-9360 | Baker Operating, Inc. only | Goldsmith, W. (San Andres) | Ector | 2 | 30.6K | 19.1K | by Jan 1993 – Aug 2026 |
| TXL -19- O-10-32393 | Raptor Resources, Inc. only | Goldsmith, W. (San Andres) | Ector | 2 | 29.6K | 182K | by Jan 1993 – Jun 2025 |
| Parker O-10-49716 | Formentera Operations LLC only | Goldsmith, W. (San Andres) | Ector | 2 | 25.9K | 4.92K | Mar 2018 – Aug 2026 |
| Buster O-10-38601 | Baker Operating, Inc. only | Goldsmith, W. (San Andres) | Ector | 2 | 23.2K | 133K | Feb 2008 – Aug 2026 |
| Williamson, Jessie, -A- O-10-16330 | Baker Operating, Inc. only | Goldsmith, W. (San Andres) | Ector | 2 | 21.9K | 182K | by Jan 1993 – Jun 2026 |
| TXL -L- a/C 1 O-10-20226 | Formentera Operations LLC only | Goldsmith, W. (San Andres) | Ector | 4 | 19.7K | 97.9K | by Jan 1993 – Sep 2020 |
| TXL Q O-10-26326 | COG Operating LLC only | Goldsmith, W. (San Andres) | Ector | 1 | 19.2K | 110K | by Jan 1993 – Sep 2008 |
| Cummins -O- O-10-10042 | Hilcorp Energy Company only | Goldsmith, W. (San Andres) | Ector | 4 | 18.6K | 146K | by Jan 1993 – Sep 2003 |
| Thomas, A. E., -a- NCT-2 O-10-49702 | Aghorn Operating, Inc. only | Goldsmith, W. (San Andres) | Ector | 7 | 18.4K | 49.9K | Mar 2018 – Jun 2026 |
| Cummins "16" O-10-23559 | Hilcorp Energy Company only | Goldsmith, W. (San Andres) | Ector | 2 | 16.4K | 114K | by Jan 1993 – Mar 2018 |
| TXL -V- O-10-20763 | Hilcorp Energy Company only | Goldsmith, W. (San Andres) | Ector | 2 | 15.6K | 62.7K | by Jan 1993 – Jan 2022 |
| Williamson, Jessie O-10-10669 | Baker Operating, Inc. only | Goldsmith, W. (San Andres) | Ector | 4 | 14.6K | 354K | by Jan 1993 – Jul 2019 |
| Cummins -A- O-10-10579 | Baker Operating, Inc. only | Goldsmith, W. (San Andres) | Ector | 1 | 14.5K | 166K | by Jan 1993 – Aug 2026 |
| Thomas, A. E., -a- NCT-1 O-10-49703 | Aghorn Operating, Inc. only | Goldsmith, W. (San Andres) | Ector | 6 | 13.4K | 82.2K | Mar 2018 – Jun 2026 |
| Arco "J" O-10-32795 | Baker Operating, Inc. only | Goldsmith, W. (San Andres) | Ector | 2 | 13K | 69.7K | by Jan 1993 – Aug 2026 |
| Kloh "B-7" O-10-49701 | Aghorn Operating, Inc. only | Goldsmith, W. (San Andres) | Ector | 2 | 9.84K | 9.25K | Mar 2018 – Jun 2026 |
| TXL -O- O-10-49727 | Formentera Operations LLC only | Goldsmith, W. (San Andres) | Ector | 1 | 9.72K | 8.85K | Mar 2018 – Aug 2026 |
| Ector -Q- Fee O-10-49705 | Aghorn Operating, Inc. only | Goldsmith, W. (San Andres) | Ector | 4 | 8.88K | 4.65K | Mar 2018 – Jun 2026 |
| McFall, R.E. O-10-49710 | DSR Oil & Gas, Inc. only | Goldsmith, W. (San Andres) | Ector | 2 | 8.83K | 268 | Mar 2018 – Aug 2026 |
| Thomas -C- O-10-49692 | Hilcorp Energy Company only | Goldsmith, W. (San Andres) | Ector | 2 | 8.67K | 8.77K | Feb 2021 – Aug 2026 |
| T X L -O- O-10-50076 | Baker Operating, Inc. only | Goldsmith, W. (San Andres) | Ector | 3 | 8.32K | 16.8K | Apr 2018 – Aug 2026 |
| TXL -D- O-10-49686 | Baker Operating, Inc. only | Goldsmith, W. (San Andres) | Ector | 1 | 8.28K | 19.4K | Mar 2018 – Aug 2026 |
| Fraser, G. C. -F- O-10-13772 | Baker Operating, Inc. only | Goldsmith, W. (San Andres) | Ector | 3 | 8.07K | 0 | Mar 2019 – Aug 2026 |
| Cummins U O-10-28917 | Baker Operating, Inc. only | Goldsmith, W. (San Andres) | Ector | 1 | 7.69K | 51.6K | by Jan 1993 – Aug 2026 |
| TXL "L" a/C 2 O-10-49726 | Formentera Operations LLC only | Goldsmith, W. (San Andres) | Ector | 3 | 7.02K | 48.6K | Mar 2018 – Aug 2026 |
| TXL -E- O-10-49721 | Formentera Operations LLC only | Goldsmith, W. (San Andres) | Ector | 4 | 6.93K | 43.3K | Mar 2018 – Aug 2026 |
| Thomas -A- O-10-49720 | Formentera Operations LLC only | Goldsmith, W. (San Andres) | Ector | 2 | 6.66K | 51.9K | Mar 2018 – Aug 2026 |
| Slator -a- Tract II O-10-49725 | Formentera Operations LLC only | Goldsmith, W. (San Andres) | Ector | 2 | 6.47K | 40.9K | Mar 2018 – Aug 2026 |
| TXL-C O-10-50075 | Drake Oil & Gas, LLC only | Goldsmith, W. (San Andres) | Ector | 3 | 6.22K | 0 | Jul 2018 – Aug 2026 |
| Slator -D- O-10-49715 | Formentera Operations LLC only | Goldsmith, W. (San Andres) | Ector | 2 | 6.08K | 53.3K | Mar 2018 – Aug 2026 |
| TXL-Smith O-10-49602 | Baker Operating, Inc. only | Goldsmith, W. (San Andres) | Ector | 2 | 5.82K | 0 | Mar 2018 – Aug 2026 |
| TXL "J" G-10-46983 | Walsh & Watts, Inc. only | Goldsmith, W. (San Andres) | Ector | 1 | 5.76K | 456K | by Jan 1993 – Aug 2026 |
| Williamson Estate -28- O-10-32556 | OXY USA WTP LP only | Goldsmith, W. (San Andres) | Ector | 1 | 5.61K | 45.6K | by Jan 1993 – Aug 2009 |
| TXL -B- O-10-50073 | Drake Oil & Gas, LLC only | Goldsmith, W. (San Andres) | Ector | 3 | 5.13K | 0 | Jul 2018 – Aug 2026 |
| Slator -C- O-10-49722 | Formentera Operations LLC only | Goldsmith, W. (San Andres) | Ector | 2 | 5K | 100K | Mar 2018 – Aug 2026 |
| Slator -E- O-10-49712 | Formentera Operations LLC only | Goldsmith, W. (San Andres) | Ector | 5 | 4.92K | 36.7K | Mar 2018 – Aug 2026 |
| TXL -D- O-10-49718 | Formentera Operations LLC only | Goldsmith, W. (San Andres) | Ector | 1 | 3.98K | 2.49K | Mar 2018 – Jan 2026 |