| Helms O-11-11346 | Fasken Oil and Ranch, Ltd. | Yellowhouse | Hockley | 2 | 111K | 92 | by Jan 1993 – Aug 2026 |
| Fasken ZA 4143 O-10-61132 | Fasken Oil and Ranch, Ltd. | Emma (Barnett Shale) | Andrews | 1 | 109K | 218K | Jan 2024 – Nov 2024 |
| Fee "AU" O-10-38914 | Fasken Oil and Ranch, Ltd. | Spraberry (Trend Area) | Ector | 2 | 106K | 224K | Aug 2008 – Aug 2026 |
| Midland Farms -AJ- O-10-25660 | Fasken Oil and Ranch, Ltd. | Fasken (Wolfcamp, North) | Ector | 2 | 105K | 199K | by Jan 1993 – Dec 2023 |
| Anderson O-11-64968 | Fasken Oil and Ranch, Ltd. | MTS (San Andres) | Dawson | 1 | 102K | 35.8K | by Jan 1993 – Aug 2026 |
| Breeding "198" O-11-67705 | Fasken Oil and Ranch, Ltd. | Three-O-Three (San Andres) | Gaines | 1 | 93.3K | 44.4K | Apr 1997 – Aug 2026 |
| Fasken ZA 4143 G-10-298974 | Fasken Oil and Ranch, Ltd. | Emma (Barnett Shale) | Andrews | 1 | 91.8K | 328K | Nov 2024 – Aug 2026 |
| Fee -ZC- O-10-27543 | Fasken Oil and Ranch, Ltd. | Fasken (Penn.) | Andrews | 1 | 89.3K | 119K | by Jan 1993 – Aug 2026 |
| H & J Sec. 385 O-11-62551 | Fasken Oil and Ranch, Ltd. | Havemeyer (San Andres) | Gaines | 2 | 88.1K | 6.08K | by Jan 1993 – Aug 2026 |
| Fee "ZF" O-10-29636 | Fasken Oil and Ranch, Ltd. | Cowden, North | Ector | 1 | 83.8K | 38.9K | by Jan 1993 – Aug 2026 |
| Fee "ZB" O-10-36882 | Fasken Oil and Ranch, Ltd. | Fasken(wolfcamp 8400) | Andrews | 1 | 82K | 94.2K | Apr 2002 – Jul 2026 |
| Rowden -39- O-10-31758 | Fasken Oil and Ranch, Ltd. | Caprock, East (Fusselman) | Martin | 1 | 79.2K | 13.5K | by Jan 1993 – Jun 2000 |
| Middleton O-11-66335 | Fasken Oil and Ranch, Ltd. | Aljenda - BLP (Ellenburger) | Garza | 3 | 78K | 40.7K | Oct 1994 – Jun 2012 |
| Fasken, David, -AU- O-10-17256 | Fasken Oil and Ranch, Ltd. | Andrews, East (Strawn) | Andrews | 1 | 77.4K | 106K | by Jan 1993 – May 2025 |
| White, George L. O-11-10119 | Fasken Oil and Ranch, Ltd. | Yellowhouse | Hockley | 8 | 75.5K | 6.97K | by Jan 1993 – Aug 2026 |
| University "40" O-10-36120 | Fasken Oil and Ranch, Ltd. | McFarland (Queen) | Andrews | 1 | 74.6K | 12.2K | Oct 1999 – Aug 2026 |
| Eicke Ranch O-11-68391 | Fasken Oil and Ranch, Ltd. | Hood (Spraberry) | Borden | 1 | 74.1K | 19K | Feb 2002 – Jan 2019 |
| Jones, Percy Tract 2 O-11-61985 | Fasken Oil and Ranch, Ltd. | Clairemont (Strawn) | Kent | 2 | 72.6K | 21 | by Jan 1993 – Mar 2025 |
| Helms "B" O-11-18221 | Fasken Oil and Ranch, Ltd. | Yellowhouse | Hockley | 3 | 72.4K | 92 | by Jan 1993 – Aug 2026 |
| Tas O-10-35279 | Fasken Oil and Ranch, Ltd. | Abell (Devonian) | Crane | 1 | 71.2K | 65.1K | Feb 1997 – Aug 2026 |
| Fasken, David -BL- O-10-26671 | Fasken Oil and Ranch, Ltd. | C-Ranch, South (Wolfcamp) | Andrews | 1 | 71K | 23.2K | by Jan 1993 – Sep 2023 |
| Fee Bar D G-10-302087 | Fasken Oil and Ranch, Ltd. | Emma (Barnett Shale) | Andrews | 1 | 67K | 758K | Jan 2026 – Aug 2026 |
| Sealy & Smith Foundation, The O-10-20042 | Fasken Oil and Ranch, Ltd. | Paladin (Penn.) | Winkler | 2 | 65.7K | 299K | by Jan 1993 – Aug 2026 |
| U-Tex 36989 O-10-32797 | Fasken Oil and Ranch, Ltd. | Magutex (Devonian) | Andrews | 2 | 64.7K | 29K | by Jan 1993 – Oct 2002 |
| Fee "A" O-10-39020 | Fasken Oil and Ranch, Ltd. | Magutex (Wolfcamp) | Andrews | 1 | 62.7K | 81.5K | Jan 2008 – Aug 2026 |
| Jones, E. H. Estate "D" O-11-17404 | Fasken Oil and Ranch, Ltd. | Bale (San Andres 5500) | Gaines | 1 | 60.3K | 15.8K | by Jan 1993 – Aug 2026 |
| Fasken "20" O-10-29325 | Fasken Oil and Ranch, Ltd. | Fasken, S. (Atoka) | Ector | 2 | 59.6K | 83.5K | by Jan 1993 – Jan 2026 |
| Wright "1" O-11-69518 | Fasken Oil and Ranch, Ltd. | Felken (Spraberry) | Dawson | 1 | 57.8K | 6.75K | Dec 2009 – Feb 2026 |
| Fee -N- O-10-13966 | Fasken Oil and Ranch, Ltd. | Fasken (Wolfcamp) | Andrews | 1 | 57.6K | 204K | by Jan 1993 – Aug 2026 |
| Jones "D" O-11-68857 | Fasken Oil and Ranch, Ltd. | Bale (San Andres 5500) | Gaines | 1 | 57.5K | 4.53K | Jan 2006 – Aug 2026 |
| Fee -ZE- O-10-28831 | Fasken Oil and Ranch, Ltd. | Fasken(wolfcamp 8400) | Andrews | 1 | 56.1K | 73.7K | by Jan 1993 – Aug 2026 |
| Barron O-10-29826 | Fasken Oil and Ranch, Ltd. | Moonlight (Mississippian) | Midland | 1 | 51K | 172K | by Jan 1993 – Oct 2000 |
| Mc Entire, E. F. -19- O-10-21394 | Fasken Oil and Ranch, Ltd. | McEntire (Fusselman) | Sterling | 1 | 50.4K | 65.1K | by Jan 1993 – Aug 2026 |
| Fee "J" O-10-36121 | Fasken Oil and Ranch, Ltd. | Fasken (Wolfcamp) | Andrews | 1 | 50.3K | 329K | Oct 1999 – Aug 2026 |
| Fee "AQ" O-10-38965 | Fasken Oil and Ranch, Ltd. | Magutex (Wolfcamp) | Andrews | 1 | 50.3K | 94.9K | May 2008 – Jul 2026 |
| Jones Estate "348" O-11-68915 | Fasken Oil and Ranch, Ltd. | Bale (Devonian) | Gaines | 1 | 49.6K | 0 | Apr 2006 – Jun 2017 |
| Fee "L" O-10-38818 | Fasken Oil and Ranch, Ltd. | Fasken (Penn. 8800) | Andrews | 1 | 49.6K | 63.8K | Feb 2006 – Aug 2026 |
| Fee "AR" O-10-38806 | Fasken Oil and Ranch, Ltd. | Magutex (Wolfcamp) | Andrews | 1 | 48K | 87K | May 2008 – Jul 2026 |
| Fasken, David -BV- O-10-27835 | Fasken Oil and Ranch, Ltd. | Fasken, South (Wolfcamp) | Ector | 1 | 47.6K | 47.4K | by Jan 1993 – Feb 2026 |
| U-Texas 36989 O-10-26456 | Fasken Oil and Ranch, Ltd. | Magutex (Wolfcamp) | Andrews | 2 | 47.4K | 43.2K | Jan 2003 – Aug 2026 |
| University "40B" O-10-36444 | Fasken Oil and Ranch, Ltd. | McFarland (Queen) | Andrews | 2 | 47K | 12.5K | Nov 2000 – Aug 2026 |
| Wilkinson, V. O-10-20842 | Fasken Oil and Ranch, Ltd. | McEntire (Fusselman) | Sterling | 1 | 46.4K | 254K | by Jan 1993 – Aug 2026 |
| Burke, Autrey "16" O-11-68961 | Fasken Oil and Ranch, Ltd. | Key West (Spraberry) | Dawson | 2 | 43.9K | 28.6K | Jun 2006 – Jan 2007 |
| Porter, Clarence O-11-60009 | Fasken Oil and Ranch, Ltd. | Clara Good (Fusselman) | Borden | 1 | 43.3K | 27.8K | by Jan 1993 – Feb 2005 |
| Newsom "121-A" O-11-68600 | Fasken Oil and Ranch, Ltd. | Julie (San Andres) | Gaines | 1 | 42.4K | 9.31K | Jul 2003 – Aug 2026 |
| Midland Farms -AX- O-10-27799 | Fasken Oil and Ranch, Ltd. | Fasken (Penn.) | Andrews | 5 | 42.3K | 710K | by Jan 1993 – Dec 2024 |
| Fasken, David "BE" O-10-24164 | Fasken Oil and Ranch, Ltd. | Fasken (Penn.) | Ector | 2 | 40.7K | 374K | by Jan 1993 – Nov 2022 |
| Fee Bar D G-10-302045 | Fasken Oil and Ranch, Ltd. | Emma (Barnett Shale) | Andrews | 1 | 40.3K | 852K | Jan 2026 – Aug 2026 |
| Dean "14" O-11-65276 | Fasken Oil and Ranch, Ltd. | MTS (San Andres) | Dawson | 1 | 38.7K | 14.9K | by Jan 1993 – Oct 2023 |
| Midland Farms Company -E- O-10-30059 | Fasken Oil and Ranch, Ltd. | Fasken (Penn.) | Ector | 4 | 38.1K | 422K | by Jan 1993 – Jun 2021 |