| Fee "BK" O-10-43440 | Fasken Oil and Ranch, Ltd. | Spraberry (Trend Area) | Ector | 74 | 4.98M | 14.8M | Dec 2012 – Jul 2026 |
| Fee 'BL' O-10-44349 | Fasken Oil and Ranch, Ltd. | Spraberry (Trend Area) | Ector | 62 | 4.24M | 18.7M | Oct 2013 – Jul 2026 |
| Fee 'BQ' O-10-47041 | Fasken Oil and Ranch, Ltd. | Spraberry (Trend Area) | Andrews | 45 | 2.95M | 13.4M | Oct 2015 – Jul 2026 |
| Fee 'BJ' O-10-47876 | Fasken Oil and Ranch, Ltd. | Spraberry (Trend Area) | Ector | 48 | 2.59M | 11.7M | Jul 2016 – Jul 2026 |
| Fee "BI" O-10-42295 | Fasken Oil and Ranch, Ltd. | Spraberry (Trend Area) | Ector | 24 | 1.7M | 7M | Jan 2012 – Jul 2026 |
| Fee 'BC' O-10-44386 | Fasken Oil and Ranch, Ltd. | Spraberry (Trend Area) | Ector | 24 | 1.64M | 5.48M | Sep 2013 – Jul 2026 |
| Fee "BB" O-10-42344 | Fasken Oil and Ranch, Ltd. | Spraberry (Trend Area) | Ector | 24 | 1.41M | 4.71M | Feb 2012 – Jul 2026 |
| Fee "BD" O-10-42591 | Fasken Oil and Ranch, Ltd. | Spraberry (Trend Area) | Ector | 19 | 1.12M | 4.39M | Feb 2012 – Jul 2026 |
| Fasken -19- O-10-32374 | Fasken Oil and Ranch, Ltd. | Fasken, South (Wolfcamp) | Ector | 1 | 551K | 980K | Jan 1993 – Jul 2026 |
| Fasken Unit -14- O-10-15379 | Fasken Oil and Ranch, Ltd. | Fasken, S. (Fusselman) | Ector | 6 | 478K | 2.73M | Jan 1993 – Jul 2026 |
| Fee "AH" O-10-36973 | Fasken Oil and Ranch, Ltd. | Cowden, North | Ector | 3 | 223K | 13.3K | Nov 2002 – Jul 2026 |
| Fee "AU" O-10-38914 | Fasken Oil and Ranch, Ltd. | Spraberry (Trend Area) | Ector | 2 | 105K | 222K | Aug 2008 – Jul 2026 |
| Midland Farms -AJ- O-10-25660 | Fasken Oil and Ranch, Ltd. | Fasken (Wolfcamp, North) | Ector | 2 | 105K | 199K | Jan 1993 – Jul 2026 |
| Fee "ZF" O-10-29636 | Fasken Oil and Ranch, Ltd. | Cowden, North | Ector | 1 | 83.8K | 38.9K | Jan 1993 – Jul 2026 |
| Fasken "20" O-10-29325 | Fasken Oil and Ranch, Ltd. | Fasken, S. (Atoka) | Ector | 2 | 59.6K | 83.5K | Jan 1993 – Jul 2026 |
| Fasken, David -BV- O-10-27835 | Fasken Oil and Ranch, Ltd. | Fasken, South (Wolfcamp) | Ector | 1 | 47.6K | 47.4K | Jan 1993 – Jul 2026 |
| Fasken, David "BE" O-10-24164 | Fasken Oil and Ranch, Ltd. | Fasken (Penn.) | Ector | 2 | 40.7K | 374K | Jan 1993 – Jul 2026 |
| Midland Farms Company -E- O-10-30059 | Fasken Oil and Ranch, Ltd. | Fasken (Penn.) | Ector | 4 | 38.1K | 422K | Jan 1993 – Jul 2026 |
| Fasken, David -BH- O-10-27399 | Fasken Oil and Ranch, Ltd. | Fasken, South (Wolfcamp) | Ector | 1 | 36.6K | 94K | Jan 1993 – Jul 2026 |
| Fasken, David -BG- O-10-25672 | Fasken Oil and Ranch, Ltd. | Fasken, S. (Atoka) | Ector | 2 | 36.6K | 408K | Jan 1993 – Jul 2026 |
| Fee -ZG- O-10-28802 | Fasken Oil and Ranch, Ltd. | Fasken (Penn.) | Ector | 10 | 36.5K | 1.26M | Jan 1993 – Jul 2026 |
| Fasken, David -BK- O-10-27355 | Fasken Oil and Ranch, Ltd. | Fasken, South (Wolfcamp) | Ector | 1 | 30K | 23.4K | Jan 1993 – Jul 2026 |
| Fee 'BL' O-10-49317 | Fasken Oil and Ranch, Ltd. | Lowe, West (Strawn) | Ector | 1 | 29.3K | 133K | Oct 2017 – Aug 2022 |
| Fee "ZG" O-10-36944 | Fasken Oil and Ranch, Ltd. | Fasken (Wolfcamp) | Ector | 1 | 26.1K | 96.9K | Sep 2002 – Jul 2026 |
| Midland Farms Company O-10-29508 | Fasken Oil and Ranch, Ltd. | Fasken (Penn.) | Ector | 2 | 22.5K | 324K | Jan 1993 – Jul 2026 |
| Fasken Unit 14 O-10-47836 | Fasken Oil and Ranch, Ltd. | Fasken, South (Wolfcamp) | Ector | 1 | 17K | 82.5K | Jul 2016 – Jul 2026 |
| David Fasken -BY- O-10-27919 | Fasken Oil and Ranch, Ltd. | Fasken (Penn.) | Ector | 1 | 14.6K | 149K | Jan 1993 – Jul 2026 |
| Fasken, David -BG- O-10-48060 | Fasken Oil and Ranch, Ltd. | Fasken, South (Strawn) | Ector | 1 | 13.4K | 25K | Dec 2015 – Jul 2026 |
| Fasken Estate O-10-37402 | Fasken Oil and Ranch, Ltd. | Circle Bar, East (Atoka) | Ector | 1 | 12.7K | 333K | Jun 2004 – Feb 2022 |
| Fasken, David -BF- O-10-40328 | Fasken Oil and Ranch, Ltd. | Fasken, South (Wolfcamp) | Ector | 1 | 11.7K | 7.38K | Apr 2010 – Jul 2026 |
| Fasken Unit -14- O-10-40273 | Fasken Oil and Ranch, Ltd. | Fasken, South (Strawn) | Ector | 1 | 11.7K | 224K | Mar 2010 – Jul 2026 |
| Fasken, David -BJ- O-10-56901 | Fasken Oil and Ranch, Ltd. | Fasken, South (Wolfcamp) | Ector | 1 | 2.03K | 454 | Nov 2021 – Jul 2026 |
| Midland Farms Company -B- Unit O-10-29964 | Fasken Oil and Ranch, Ltd. | Fasken (Penn.) | Ector | 2 | 2.03K | 75.6K | Jan 1993 – Jul 2024 |
| Fee 'BK' O-10-51720 | Fasken Oil and Ranch, Ltd. | Emma (Mississippian) | Ector | 1 | 1.07K | 6.19K | Feb 2019 – Mar 2020 |
| David Fasken -CF- O-10-28146 | Fasken Oil and Ranch, Ltd. | Fasken (Penn.) | Ector | 5 | 1.07K | 50.9K | Jan 1993 – Jul 2026 |
| Midland Farms -A- O-10-29674 | Fasken Oil and Ranch, Ltd. | Fasken (Penn.) | Ector | 1 | 247 | 14.7K | Jan 1993 – Jan 2025 |
| Midland Farms -AJ- O-10-24650 | Fasken Oil and Ranch, Ltd. | Fasken | Ector | 1 | 0 | 0 | Jan 1993 – Jul 2024 |
| Fee ZG O-10-48962 | Fasken Oil and Ranch, Ltd. | Spraberry (Trend Area) | Ector | 1 | 0 | 0 | Oct 2017 – Mar 2020 |
| Fasken Estate O-10-30563 | Fasken Oil and Ranch, Ltd. | Circle Bar, East (Atoka) | Ector | 1 | 0 | 0 | Jan 1993 – Dec 1998 |
| Fee ZG O-10-50145 | Fasken Oil and Ranch, Ltd. | Cowden, North | Ector | 1 | 0 | 0 | May 2018 – Nov 2018 |
| Fee 'BJ' WSW O-10-44635 | Fasken Oil and Ranch, Ltd. | Spraberry (Trend Area) | Ector | 1 | 0 | 0 | May 2013 – Jul 2026 |
| Fee "BL" SWD O-10-42502 | Fasken Oil and Ranch, Ltd. | Fasken, South (Ellenburger) | Ector | 1 | 0 | 0 | Jun 2012 – Jul 2026 |
| Fee "ZG" O-10-37258 | Fasken Oil and Ranch, Ltd. | Fasken (Wolfcamp, Lower) | Ector | 1 | 0 | 0 | Apr 2002 – Jul 2026 |