| Westbrook Southwest Unit O-10-21120 | Grayrock Energy II, LLC only | Westbrook | Mitchell | 371 | 8.65M | 21 | Jan 1993 – Apr 2026 |
| Kma Waterflood-Southwest Unit O-13-10267 | Stephens & Johnson Operating Co. only | K-M-A | Wichita | 160 | 5.27M | 19 | Jan 1993 – Apr 2026 |
| Prentice Southwest Unit O-11-60367 | Occidental Permian Ltd. only | Prentice (6700) | Yoakum | 124 | 5.14M | 1.94M | Jan 1993 – Apr 2026 |
| Blackfoot West Unit O-10-50000 | Diamondback E&P LLC only | Spraberry (Trend Area) | Midland | 11 | 4.53M | 14.1M | Aug 2017 – Apr 2026 |
| Talco West Unit O-6-15028 | J.P. Oil Company, Inc. only | Talco | Franklin | 247 | 3.99M | 0 | Jul 2011 – Mar 2026 |
| Cowden 39-03 West Unit O-10-61552 | XTO Energy Inc. only | Spraberry (Trend Area) | Midland | 9 | 3.33M | 8.9M | Oct 2023 – Apr 2026 |
| Willamar West Unit O-4-3391 | Citation Oil & Gas Corp. only | Willamar, West | Willacy | 207 | 3.02M | 3.17M | Jan 1993 – Apr 2026 |
| UL Mason West Unit O-10-49200 | Diamondback E&P LLC only | Spraberry (Trend Area) | Andrews | 11 | 2.59M | 2.47M | Jul 2017 – Apr 2026 |
| Wellman West Unit O-11-64619 | White Rock Oil & Gas, LLC only | Wellman, W. (San Andres) | Terry | 45 | 2.04M | 460K | Jan 1993 – Mar 2026 |
| Quito West Unit O-10-32541 | Seaboard Operating Co. only | Quito, West (Delaware) | Ward | 64 | 1.78M | 1.01M | Jan 1993 – Apr 2026 |
| G-M-K West Unit O-11-68366 | Hilcorp Energy Company only | G-M-K, West (San Andres) | Gaines | 19 | 1.77M | 386K | Dec 2001 – Apr 2026 |
| Tree Frog 47 West Unit O-10-53768 | Diamondback E&P LLC only | Spraberry (Trend Area) | Howard | 5 | 1.64M | 4.53M | Dec 2019 – Apr 2026 |
| Bob Midkiff 37-48 West Unit O-10-57379 | XTO Energy Inc. only | Spraberry (Trend Area) | Midland | 9 | 1.58M | 6.05M | May 2022 – Apr 2026 |
| Scott Sugg West Unit O-9-18614 | Apache Corporation only | Lin (Wolfcamp) | Irion | 12 | 1.36M | 24.1M | Feb 2015 – Apr 2026 |
| Bexar 11-14 West Unit O-10-57344 | Chevron U. S. A. Inc. only | Wolfbone (Trend Area) | Reeves | 7 | 1.31M | 2.36M | Oct 2021 – Apr 2026 |
| Heard Bower West Unit O-1-15760 | Marathon Oil EF LLC only | Eagleville (Eagle Ford-1) | Atascosa | 9 | 1.26M | 1.48M | Sep 2011 – Apr 2026 |
| Mid-States West Unit 37-5 O-10-52457 | Permian Resources Operating, LLC only | Spraberry (Trend Area) R 40 Exc | Midland | 4 | 1.25M | 5M | Sep 2019 – Apr 2026 |
| Dove West Unit O-2-9636 | Murphy Expl. & Prod. Co. - USA only | Eagleville (Eagle Ford-2) | Karnes | 6 | 1.24M | 1.92M | Aug 2011 – Apr 2026 |
| Panther West Unit O-10-51470 | Apache Corporation only | Spraberry (Trend Area) | Howard | 7 | 1.24M | 2.35M | Oct 2018 – Apr 2026 |
| Jesse James 5-4 West Unit O-10-60253 | Permian Resources Operating, LLC only | Phantom (Wolfcamp) | Reeves | 4 | 1.22M | 4.33M | Apr 2023 – Apr 2026 |
| Bexar 46-3 West Unit 1 O-10-56008 | Chevron U. S. A. Inc. only | Wolfbone (Trend Area) | Reeves | 3 | 1.19M | 2.36M | Jun 2021 – Apr 2026 |
| Dixieland State 55-6 West Unit G-10-290115 | Coterra Energy Operating Co. only | Phantom (Wolfcamp) | Reeves | 1 | 1.12M | 7.28M | Nov 2020 – Apr 2026 |
| Von Roeder West Unit O-11-69186 | Crossroads Operating, LLC only | Von Roeder, W. (Clear Fork) | Borden | 10 | 1.11M | 261K | Dec 2007 – Apr 2026 |
| Wilbanks Allar West Unit O-10-52082 | Diamondback E&P LLC only | Spraberry (Trend Area) | Martin | 4 | 1.08M | 3.66M | Feb 2019 – Apr 2026 |
| Whitfield West Unit O-2-10112 | Murphy Expl. & Prod. Co. - USA only | Eagleville (Eagle Ford-2) | Karnes | 5 | 1.07M | 687K | Apr 2012 – Apr 2026 |
| Walker-Drrc West Unit 30-56 O-10-55549 | Surge Operating, LLC only | Spraberry (Trend Area) | Howard | 3 | 1M | 1.99M | Dec 2020 – Mar 2026 |
| Sisti West Unit O-2-10473 | Murphy Expl. & Prod. Co. - USA only | Eagleville (Eagle Ford-2) | Karnes | 3 | 862K | 1.26M | Apr 2013 – Apr 2026 |
| Smith-West Unit O-1-17034 | Marathon Oil EF LLC only | Eagleville (Eagle Ford-1) | McMullen | 6 | 782K | 1.32M | Sep 2013 – Apr 2026 |
| Dixieland State 55-6 West Unit G-10-285271 | Coterra Energy Operating Co. only | Phantom (Wolfcamp) | Reeves | 1 | 746K | 2.96M | Feb 2018 – Apr 2026 |
| Bexar 46-1 West Unit 2 O-10-56007 | Chevron U. S. A. Inc. only | Wolfbone (Trend Area) | Reeves | 2 | 728K | 1.41M | Jun 2021 – Apr 2026 |
| Gorgon West Unit 57-1-33-28 G-10-292357 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Reeves | 1 | 679K | 2.95M | Sep 2021 – Apr 2026 |
| Talco Central West Unit O-6-15127 | J.P. Oil Company, Inc. only | Talco | Titus | 31 | 670K | 0 | Dec 2012 – Mar 2026 |
| Gorgon West Unit 57-1-33-28 G-10-292386 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Reeves | 1 | 655K | 3.19M | Sep 2021 – Apr 2026 |
| Dixieland State 55-6 West Unit G-10-290221 | Coterra Energy Operating Co. only | Phantom (Wolfcamp) | Reeves | 1 | 640K | 3.42M | Nov 2020 – Apr 2026 |
| Perch West Unit 57-1-27-15 G-10-293378 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Reeves | 1 | 636K | 3.39M | Jun 2022 – Apr 2026 |
| Perch West Unit 57-1-27-15 G-10-293373 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Reeves | 1 | 609K | 3.07M | Jun 2022 – Apr 2026 |
| Perch West Unit 57-1-27-15 G-10-293418 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Reeves | 1 | 596K | 2.88M | Jun 2022 – Apr 2026 |
| Oldham Trust West Unit 25-41 O-10-59619 | Surge Operating, LLC only | Spraberry (Trend Area) | Howard | 2 | 577K | 1.03M | Oct 2022 – Mar 2026 |
| Clay Creek West Unit O-3-9388 | Hyperion Oil & Gas LLC only | Clay Creek | Washington | 48 | 576K | 163K | Jan 1993 – Apr 2026 |
| Pancho West Unit O-1-18968 | Texas American Resources Company only | Eagleville (Eagle Ford-1) | Atascosa | 3 | 557K | 425K | Nov 2016 – Apr 2026 |
| Perch West Unit 57-1-27-15 G-10-293371 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Reeves | 1 | 554K | 2.64M | Jun 2022 – Apr 2026 |
| University 9-28 West Unit O-10-48305 | Elevation Resources LLC only | Emma (Devonian) | Andrews | 1 | 525K | 1.05M | Nov 2016 – Mar 2026 |
| Cappleton West Unit D G-10-290222 | Resolute Natural Res. Co., LLC only | Phantom (Wolfcamp) | Reeves | 1 | 495K | 4.81M | Jul 2021 – Apr 2026 |
| Sky Pilot 57-46 West Unit G G-10-291883 | Coterra Energy Operating Co. only | Ford, West (Wolfcamp) | Reeves | 1 | 487K | 3.73M | Aug 2021 – Apr 2026 |
| Cappleton West Unit E G-10-290220 | Resolute Natural Res. Co., LLC only | Phantom (Wolfcamp) | Reeves | 1 | 470K | 2.66M | Jul 2021 – Apr 2026 |
| Cappleton West Unit B G-10-290161 | Resolute Natural Res. Co., LLC only | Phantom (Wolfcamp) | Reeves | 1 | 467K | 2.63M | Jul 2021 – Apr 2026 |
| Berkley State West Unit O-10-47669 | Halcon Operating Co., Inc. only | Phantom (Wolfcamp) | Pecos | 2 | 463K | 562K | Feb 2016 – Mar 2026 |
| Donna State West Unit O-10-48073 | Halcon Operating Co., Inc. only | Phantom (Wolfcamp) | Pecos | 1 | 460K | 481K | Aug 2016 – Mar 2026 |
| Sky Pilot 57-46 West Unit I G-10-292087 | Coterra Energy Operating Co. only | Ford, West (Wolfcamp) | Reeves | 1 | 457K | 3.3M | Aug 2021 – Apr 2026 |
| Alba (Subclarksville) West Unit O-6-12693 | HD Operating Co, LLC only | Alba | Wood | 21 | 456K | 21 | Jan 1993 – Jan 2024 |