| Loma Blanca G-1-268589 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 757K | 6.26M | Aug 2012 – Apr 2026 |
| Loma Blanca G-1-271168 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 608K | 5.49M | Apr 2013 – Apr 2026 |
| Loma Blanca G-1-269302 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 549K | 4.51M | Sep 2012 – Apr 2026 |
| Loma Blanca G-1-271167 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 529K | 4.66M | Apr 2013 – Apr 2026 |
| Fee BMN B G-10-294834 | Fasken Oil and Ranch, Ltd. | Emma (Barnett Shale) | Andrews | 1 | 489K | 1.83M | Feb 2023 – Apr 2026 |
| Loma Blanca G-1-271161 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 485K | 4.16M | Apr 2013 – Apr 2026 |
| Fee BMN A G-10-294833 | Fasken Oil and Ranch, Ltd. | Emma (Barnett Shale) | Andrews | 1 | 469K | 1.81M | Feb 2023 – Apr 2026 |
| Loma Blanca G-1-281836 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 469K | 4.51M | Nov 2016 – Apr 2026 |
| Loma Blanca G-1-281700 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 454K | 4.53M | Nov 2016 – Apr 2026 |
| Loma Blanca G-1-275903 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 437K | 4.12M | Aug 2014 – Apr 2026 |
| Loma Blanca G-1-281835 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 432K | 4.63M | Oct 2016 – Apr 2026 |
| Loma Blanca G-1-275909 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 400K | 4M | Aug 2014 – Apr 2026 |
| Loma Blanca G-1-281697 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 387K | 4.16M | Nov 2016 – Apr 2026 |
| Fee La G-10-294591 | Fasken Oil and Ranch, Ltd. | Emma (Barnett Shale) | Andrews | 1 | 383K | 1.84M | Sep 2022 – Apr 2026 |
| Loma Blanca G-1-281838 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 369K | 4.18M | Nov 2016 – Apr 2026 |
| Loma Blanca G-1-285319 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 367K | 4.13M | Jun 2018 – Apr 2026 |
| Loma Blanca G-1-285417 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 355K | 4.09M | Jun 2018 – Apr 2026 |
| Loma Blanca G-1-284944 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 353K | 4.21M | Jul 2018 – Apr 2026 |
| Loma Blanca G-1-285420 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 345K | 4.51M | Jul 2018 – Apr 2026 |
| Loma Blanca G-1-275905 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 344K | 3.43M | Nov 2014 – Apr 2026 |
| Loma Blanca G-1-289826 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 334K | 3.67M | Apr 2021 – Apr 2026 |
| Loma Blanca G-1-289753 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 328K | 3.55M | Apr 2021 – Apr 2026 |
| Loma Blanca G-1-289730 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 321K | 3.15M | Mar 2021 – Apr 2026 |
| Fee La G-10-294592 | Fasken Oil and Ranch, Ltd. | Emma (Barnett Shale) | Andrews | 1 | 320K | 1.68M | Sep 2022 – Apr 2026 |
| Fee BMN C G-10-299791 | Fasken Oil and Ranch, Ltd. | Emma (Barnett Shale) | Andrews | 1 | 316K | 951K | Feb 2025 – Apr 2026 |
| Loma Blanca G-1-284998 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 311K | 4.2M | Jul 2018 – Apr 2026 |
| Loma Blanca G-1-284742 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 308K | 3.24M | Jun 2018 – Apr 2026 |
| Loma Blanca G-1-285314 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 308K | 4.58M | Jul 2018 – Apr 2026 |
| Fee La G-10-294593 | Fasken Oil and Ranch, Ltd. | Emma (Barnett Shale) | Andrews | 1 | 307K | 1.41M | Sep 2022 – Apr 2026 |
| Loma Blanca G-1-284988 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 305K | 3.38M | Jun 2018 – Apr 2026 |
| Loma Blanca G-1-285315 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 288K | 4.44M | Jul 2018 – Apr 2026 |
| Loma Blanca G-1-285320 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 280K | 4.17M | Jul 2018 – Apr 2026 |
| Loma Blanca G-1-285316 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 267K | 4.75M | Jul 2018 – Apr 2026 |
| Loma Blanca G-1-285317 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 252K | 4.96M | Jul 2018 – Apr 2026 |
| Fee BM 0601 G-10-299839 | Fasken Oil and Ranch, Ltd. | Emma (Barnett Shale) | Andrews | 1 | 247K | 839K | Feb 2025 – Apr 2026 |
| Loma Blanca G-1-289726 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 241K | 2.57M | Mar 2021 – Apr 2026 |
| Fee BM 0601 G-10-299924 | Fasken Oil and Ranch, Ltd. | Emma (Barnett Shale) | Andrews | 1 | 237K | 873K | Feb 2025 – Apr 2026 |
| Fee BVM B G-10-299902 | Fasken Oil and Ranch, Ltd. | Emma (Barnett Shale) | Andrews | 1 | 232K | 906K | Mar 2025 – Apr 2026 |
| Fee La G-10-294594 | Fasken Oil and Ranch, Ltd. | Emma (Barnett Shale) | Andrews | 1 | 214K | 1.21M | Sep 2022 – Apr 2026 |
| Fee Bar A G-10-300519 | Fasken Oil and Ranch, Ltd. | Emma (Barnett Shale) | Midland | 1 | 196K | 743K | Apr 2025 – Apr 2026 |
| Fee BVM A G-10-299901 | Fasken Oil and Ranch, Ltd. | Emma (Barnett Shale) | Andrews | 1 | 189K | 871K | Mar 2025 – Apr 2026 |
| Fee BN 3328 G-10-299963 | Fasken Oil and Ranch, Ltd. | Emma (Barnett Shale) | Midland | 1 | 171K | 744K | Apr 2025 – Apr 2026 |
| Fee BN 3328 G-10-300000 | Fasken Oil and Ranch, Ltd. | Emma (Barnett Shale) | Midland | 1 | 170K | 751K | Apr 2025 – Apr 2026 |
| Fee Bar A G-10-300520 | Fasken Oil and Ranch, Ltd. | Emma (Barnett Shale) | Midland | 1 | 170K | 745K | Apr 2025 – Apr 2026 |
| Fasken ZA 4143 G-10-298974 | Fasken Oil and Ranch, Ltd. | Emma (Barnett Shale) | Andrews | 1 | 80.6K | 285K | Nov 2024 – Apr 2026 |
| Fee "Q" G-10-133915 | Fasken Oil and Ranch, Ltd. | Inez (Consolidated) | Andrews | 1 | 8.82K | 1.14M | Jan 1993 – Apr 2026 |
| Fee "S" G-10-134302 | Fasken Oil and Ranch, Ltd. | Lowe (Miss.) | Andrews | 1 | 5.76K | 1.93M | Jan 1993 – Mar 2022 |
| Palafox Explor. Co. -17- G-4-47595 | Fasken Oil and Ranch, Ltd. | Gold River, North (Olmos) | Webb | 1 | 5.13K | 1.82M | Jan 1993 – Apr 2026 |
| Palafox Unit G-4-170368 | Fasken Oil and Ranch, Ltd. | Gold River, North (Olmos) | Webb | 1 | 2.01K | 889K | Jun 1998 – Mar 2025 |
| Palafox Unit G-4-170365 | Fasken Oil and Ranch, Ltd. | Gold River, North (Olmos) | Webb | 1 | 1.89K | 1.31M | Dec 1997 – Apr 2025 |