| Burkes, Jack D. O-10-27765 | Fasken Oil and Ranch, Ltd. | Germania (Grayburg) | Midland | 11 | 727K | 185K | by Jan 1993 – Aug 2026 |
| Hanford East San Andres Unit O-11-64808 | Fasken Oil and Ranch, Ltd. | Hanford (San Andres) | Gaines | 19 | 706K | 469K | by Jan 1993 – Aug 2026 |
| Huddleston O-11-61831 | Fasken Oil and Ranch, Ltd. | Gin, North (8000) | Dawson | 6 | 627K | 164K | by Jan 1993 – Aug 2026 |
| Fasken Block "CB" a/C 2 O-10-4035 | Fasken Oil and Ranch, Ltd. | Magutex (Devonian) | Andrews | 3 | 620K | 463K | by Jan 1993 – Aug 2026 |
| Loma Blanca G-1-271168 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 611K | 5.52M | Apr 2013 – Aug 2026 |
| Loma Blanca G-1-269302 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 552K | 4.53M | Sep 2012 – Aug 2026 |
| Fasken -19- O-10-32374 | Fasken Oil and Ranch, Ltd. | Fasken, South (Wolfcamp) | Ector | 1 | 551K | 980K | by Jan 1993 – Aug 2026 |
| Loma Blanca G-1-271167 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 531K | 4.69M | Apr 2013 – Aug 2026 |
| Monterey-University O-10-23482 | Fasken Oil and Ranch, Ltd. | Fullerton | Andrews | 2 | 522K | 383K | by Jan 1993 – Aug 2026 |
| Fee BMN B G-10-294834 | Fasken Oil and Ranch, Ltd. | Emma (Barnett Shale) | Andrews | 1 | 514K | 2.02M | Feb 2023 – Aug 2026 |
| Manor Park West LS Unit O-10-54490 | Fasken Oil and Ranch, Ltd. | Spraberry (Trend Area) R 40 Exc | Midland | 1 | 497K | 862K | Jul 2020 – Aug 2026 |
| Fee -ZA- O-10-28118 | Fasken Oil and Ranch, Ltd. | Fasken(wolfcamp 8400) | Andrews | 7 | 494K | 527K | by Jan 1993 – Aug 2026 |
| Fee BMN A G-10-294833 | Fasken Oil and Ranch, Ltd. | Emma (Barnett Shale) | Andrews | 1 | 492K | 1.98M | Feb 2023 – Aug 2026 |
| Loma Blanca G-1-271161 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 487K | 4.18M | Apr 2013 – Aug 2026 |
| Fasken Unit -14- O-10-15379 | Fasken Oil and Ranch, Ltd. | Fasken, S. (Fusselman) | Ector | 6 | 478K | 2.73M | by Jan 1993 – Apr 2026 |
| Loma Blanca G-1-281836 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 475K | 4.62M | Nov 2016 – Aug 2026 |
| Eicoff 29 O-10-51803 | Fasken Oil and Ranch, Ltd. | Spraberry (Trend Area) | Midland | 1 | 475K | 1.3M | Dec 2018 – Aug 2026 |
| Loma Blanca G-1-281700 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 461K | 4.61M | Nov 2016 – Aug 2026 |
| Fee -S- O-10-16442 | Fasken Oil and Ranch, Ltd. | Lowe (Ellenburger) | Andrews | 3 | 452K | 359K | by Jan 1993 – Aug 2026 |
| U-Texas #36994-a/C #2 O-10-4038 | Fasken Oil and Ranch, Ltd. | Magutex (Devonian) | Andrews | 7 | 449K | 296K | by Jan 1993 – Aug 2026 |
| Loma Blanca G-1-275903 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 441K | 4.16M | Aug 2014 – Aug 2026 |
| King O-11-66788 | Fasken Oil and Ranch, Ltd. | Buenos (Ellenburger) | Garza | 6 | 441K | 170K | Apr 1993 – Nov 1998 |
| Loma Blanca G-1-281835 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 439K | 4.73M | Oct 2016 – Aug 2026 |
| Holt, O. B., -H- O-10-16153 | Fasken Oil and Ranch, Ltd. | Cowden, North | Andrews | 6 | 426K | 143K | by Jan 1993 – Aug 2026 |
| Fee BMN D O-10-63531 | Fasken Oil and Ranch, Ltd. | Emma (Barnett Shale) | Andrews | 1 | 415K | 1.19M | Feb 2025 – Aug 2026 |
| Loma Blanca G-1-275909 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 402K | 4.05M | Aug 2014 – Aug 2026 |
| U-Texas #36995 O-10-4049 | Fasken Oil and Ranch, Ltd. | Magutex (Ellenburger) | Andrews | 5 | 401K | 291K | by Jan 1993 – Aug 2026 |
| Fasken O-10-23406 | Fasken Oil and Ranch, Ltd. | Serio (Grayburg) | Andrews | 8 | 397K | 39K | by Jan 1993 – Mar 2016 |
| Loma Blanca G-1-281697 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 394K | 4.26M | Nov 2016 – Aug 2026 |
| Fee La G-10-294591 | Fasken Oil and Ranch, Ltd. | Emma (Barnett Shale) | Andrews | 1 | 389K | 1.86M | Sep 2022 – Aug 2026 |
| Halfmann '28' WB O-10-50412 | Fasken Oil and Ranch, Ltd. | Spraberry (Trend Area) R 40 Exc | Midland | 1 | 382K | 639K | Aug 2017 – Aug 2026 |
| Manor Park West WB Unit O-10-55910 | Fasken Oil and Ranch, Ltd. | Spraberry (Trend Area) | Midland | 1 | 379K | 1.3M | Jun 2020 – Aug 2026 |
| Loma Blanca G-1-281838 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 375K | 4.29M | Nov 2016 – Aug 2026 |
| Loma Blanca G-1-285319 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 375K | 4.25M | Jun 2018 – Aug 2026 |
| Wilson 29 O-10-51812 | Fasken Oil and Ranch, Ltd. | Spraberry (Trend Area) | Midland | 1 | 370K | 905K | Jan 2019 – Aug 2026 |
| Fee BMN C G-10-299791 | Fasken Oil and Ranch, Ltd. | Emma (Barnett Shale) | Andrews | 1 | 369K | 1.28M | Feb 2025 – Aug 2026 |
| Loma Blanca G-1-285417 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 362K | 4.2M | Jun 2018 – Aug 2026 |
| Fee 'AP' O-10-43074 | Fasken Oil and Ranch, Ltd. | Spraberry (Trend Area) | Andrews | 12 | 360K | 1.07M | Jul 2013 – Aug 2026 |
| Loma Blanca G-1-284944 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 360K | 4.33M | Jul 2018 – Aug 2026 |
| Loma Blanca G-1-289826 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 358K | 3.92M | Apr 2021 – Aug 2026 |
| Fasken Operating Area -B- O-10-17204 | Fasken Oil and Ranch, Ltd. | Circle Bar (Ellen) | Ector | 1 | 352K | 458K | by Jan 1993 – Aug 2026 |
| Loma Blanca G-1-285420 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 351K | 4.64M | Jul 2018 – Aug 2026 |
| Loma Blanca G-1-289753 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 349K | 3.8M | Apr 2021 – Aug 2026 |
| Loma Blanca G-1-275905 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 346K | 3.46M | Nov 2014 – Aug 2026 |
| Loma Blanca G-1-289730 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 340K | 3.35M | Mar 2021 – Aug 2026 |
| Fee La G-10-294592 | Fasken Oil and Ranch, Ltd. | Emma (Barnett Shale) | Andrews | 1 | 330K | 1.77M | Sep 2022 – Aug 2026 |
| Loma Blanca G-1-284998 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 317K | 4.32M | Jul 2018 – Aug 2026 |
| Fee La G-10-294593 | Fasken Oil and Ranch, Ltd. | Emma (Barnett Shale) | Andrews | 1 | 315K | 1.49M | Sep 2022 – Aug 2026 |
| Loma Blanca G-1-284742 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 314K | 3.35M | Jun 2018 – Aug 2026 |
| Loma Blanca G-1-285314 | Fasken Oil and Ranch, Ltd. | Briscoe Ranch (Eagleford) | Webb | 1 | 313K | 4.72M | Jul 2018 – Aug 2026 |