| Tunis Creek Univ. Lands Unit O-10-29971 | Basin Oil & Gas Operating, LLC only | Tunis Creek(devonian) | Pecos | 20 | 2.57M | 2.16M | by Jan 1993 – Aug 2026 |
| Whiskey River 19.5A-8 O-10-50171 | Continental Resources, Inc. only | Phantom (Wolfcamp) | Pecos | 2 | 1.27M | 2.42M | Feb 2018 – Aug 2026 |
| State Whiskey River 5-8 O-10-49606 | Continental Resources, Inc. only | Phantom (Wolfcamp) | Pecos | 2 | 934K | 1.74M | Aug 2017 – Aug 2026 |
| Whiskey River 19.5B-8 O-10-49888 | Continental Resources, Inc. only | Phantom (Wolfcamp) | Pecos | 2 | 748K | 1.35M | Nov 2017 – Aug 2026 |
| Whiskey River 6-8 O-10-49975 | Continental Resources, Inc. only | Phantom (Wolfcamp) | Pecos | 2 | 684K | 1.44M | Nov 2017 – Aug 2026 |
| University 6 O-10-41298 | V-F Petroleum Inc. only | Bootleg Canyon (Ellenburger) | Pecos | 2 | 514K | 93.3K | Jun 2011 – Aug 2026 |
| State Whiskey River 21-8 O-10-55052 | Continental Resources, Inc. only | Phantom (Wolfcamp) | Pecos | 1 | 380K | 624K | Mar 2020 – Aug 2026 |
| River Rattler 0809 O-10-50232 | Crescent Energy Operating, LLC only | Hoefs T-K (Wolfcamp) | Pecos | 1 | 332K | 1.02M | Mar 2018 – Aug 2026 |
| University Landrum O-10-29130 | Texas Consolidated Pet. Corp. only | Taylor Link W.(san Andres) | Pecos | 9 | 305K | 21 | by Jan 1993 – Aug 2026 |
| University -D- O-10-28995 | Texas Consolidated Pet. Corp. only | Taylor Link W.(san Andres) | Pecos | 4 | 251K | 137 | by Jan 1993 – Aug 2026 |
| State University A&d O-10-22945 | Primal Energy Corporation only | Leon Valley (Obrien) | Pecos | 29 | 231K | 394K | by Jan 1993 – Jun 2012 |
| University "9" O-10-34129 | Shenandoah Petroleum Corporation only | Viejos (Devonian) | Pecos | 3 | 214K | 2.31M | Apr 1994 – Aug 2026 |
| University "4" O-10-33904 | Shenandoah Petroleum Corporation only | Viejos (Devonian) | Pecos | 8 | 199K | 6.23M | Jul 1993 – Aug 2026 |
| Sullivan Unit O-10-35613 | Caroil, LLC only | Brown & Thorp (Clear Fork) | Pecos | 30 | 152K | 0 | Jan 1998 – Aug 2026 |
| University O-10-7162 | Tres Roughneckas WTX LLC only | Walker | Pecos | 10 | 131K | 21 | by Jan 1993 – Mar 2023 |
| University -BX- O-10-6725 | Tres Roughneckas WTX LLC only | Taylor Link | Pecos | 4 | 125K | 24 | by Jan 1993 – Feb 2025 |
| University 9 O-10-32833 | Simata Energy, LLC only | Viejos (Devonian) | Pecos | 4 | 118K | 1.21M | by Jan 1993 – Aug 2026 |
| University -A- O-10-6722 | BJG Operating Company only | Taylor Link | Pecos | 4 | 102K | 143 | by Jan 1993 – Aug 2026 |
| University McDaniels "9" O-10-34543 | Shenandoah Petroleum Corporation only | Viejos (Devonian) | Pecos | 1 | 91.7K | 40.2K | Jun 1995 – Jul 2026 |
| Bissett O-10-42189 | Pecos River Exploration, LLC only | Wolfbone (Trend Area) | Pecos | 1 | 90.8K | 200K | Jul 2011 – Mar 2024 |
| Trees Estate "12" O-10-36000 | Meco IV, LLC only | Waha (Delaware) | Pecos | 3 | 90.2K | 604K | Oct 1998 – Jul 2018 |
| University 7 O-10-52017 | V-F Petroleum Inc. only | Bootleg Canyon (Ellenburger) | Pecos | 1 | 76.6K | 16.1K | Jun 2019 – Aug 2026 |
| State University A&d O-10-42020 | Xhorizons Energy LLC only | Leon Valley (Obrien) | Pecos | 21 | 76.1K | 709 | Jul 2012 – Jun 2026 |
| O Sullivan,m.j.etal O-10-22948 | Olsen Energy Inc. only | Wentz (Clear Fork) | Pecos | 5 | 69.7K | 28 | by Jan 1993 – May 2014 |
| Wolfpup O-10-41022 | Pecos River Exploration, LLC only | Athey (Wolfcamp 10900) | Pecos | 1 | 55.3K | 143K | Oct 2010 – Apr 2024 |
| Humble University O-10-28821 | BJG Operating Company only | Taylor Link W.(san Andres) | Pecos | 4 | 54.9K | 47 | by Jan 1993 – Aug 2026 |
| St. Genevieve Univ 19-20 O-10-41240 | Gordy Oil Company only | Viejos (Devonian) | Pecos | 2 | 54.6K | 219K | Apr 2013 – Aug 2026 |
| Eaton, H. J. O-10-19928 | Olsen Energy Inc. only | Fort Stockton (Seven Rivers) | Pecos | 2 | 54.2K | 20 | by Jan 1993 – Aug 2026 |
| Tahoe-University "B" O-10-28285 | Xhorizons Energy LLC only | Leon Valley (Obrien) | Pecos | 4 | 47.5K | 37.8K | by Jan 1993 – Jun 2026 |
| University 8 O-10-32908 | Fuller Production, Inc. only | Viejos (Devonian) | Pecos | 4 | 46.1K | 1.4M | by Jan 1993 – Jan 2011 |
| Bonebrake 98 O-10-41212 | Pecos River Exploration, LLC only | Athey (Wolfcamp 10900) | Howard | 2 | 40.9K | 65.6K | Nov 2010 – Mar 2020 |
| University "E & F" O-10-22742 | Tres Roughneckas WTX LLC only | Walker | Pecos | 3 | 37.3K | 21 | by Jan 1993 – Feb 2024 |
| University "4A" O-10-34524 | Shenandoah Petroleum Corporation only | Viejos (Devonian) | Pecos | 3 | 35.5K | 2.78M | Jun 1995 – Sep 2000 |
| University "B" O-10-20718 | Xhorizons Energy LLC only | Leon Valley, E. (Obrien -B- Sd.) | Pecos | 5 | 35.4K | 52.6K | by Jan 1993 – Jun 2026 |
| University -D- O-10-28820 | BJG Operating Company only | Taylor Link W.(san Andres) | Pecos | 2 | 32.6K | 47 | by Jan 1993 – Sep 2024 |
| University 17 O-10-33504 | RW Operating Corp. only | Viejos (Devonian) | Pecos | 1 | 29.4K | 889K | by Jan 1993 – Oct 2013 |
| Sullivan Waterflood Unit O-10-21203 | Argus Drilling, LLC only | Lehn-Apco (1600) | Pecos | 83 | 28.4K | 20.8K | by Jan 1993 – May 2003 |
| University "S" O-10-30486 | BJG Operating Company only | Taylor Link W.(san Andres) | Pecos | 4 | 28.1K | 47 | by Jan 1993 – Aug 2026 |
| University -A- O-10-25859 | Mid-States Operating Company only | Taylor Link | Pecos | 2 | 28K | 184 | by Jan 1993 – Jun 2022 |
| Weatherby, Ivy B. O-10-27120 | Chevron U. S. A. Inc. only | Rojo Caballos (Delaware) | Pecos | 2 | 26.9K | 13.1K | by Jan 1993 – Sep 2016 |
| University -C- O-10-6767 | Mid-States Operating Company only | Taylor Link | Pecos | 2 | 26.1K | 184 | by Jan 1993 – Aug 2026 |
| Bower University -D- & -F- O-10-6745 | BJG Operating Company only | Taylor Link | Pecos | 4 | 24.2K | 60 | by Jan 1993 – Aug 2026 |
| University "4" G-10-183364 | Shenandoah Petroleum Corporation only | Viejos (Devonian) | Pecos | 1 | 22.9K | 838K | Oct 2000 – Sep 2022 |
| University O-10-25904 | Flamingo Operating, LLC only | Leon Valley (Obrien) | Pecos | 3 | 22.6K | 17.6K | by Jan 1993 – Jul 2012 |
| University "4" G-10-183361 | Shenandoah Petroleum Corporation only | Viejos (Devonian) | Pecos | 1 | 22.1K | 478K | Dec 2000 – Dec 2022 |
| State-Sullivan -C- O-10-510 | Energen Resources Corporation only | Brown & Thorp (Clear Fork) | Pecos | 5 | 19.1K | 21 | by Jan 1993 – Dec 1997 |
| University "10A" O-10-35781 | Shenandoah Petroleum Corporation only | Viejos (Devonian) | Pecos | 1 | 19.1K | 2.44K | Jun 1998 – Aug 2026 |
| University "4" G-10-183365 | Shenandoah Petroleum Corporation only | Viejos (Devonian) | Pecos | 1 | 18.7K | 415K | Oct 2000 – Sep 2014 |
| University 16 O-10-32985 | RW Operating Corp. only | Viejos (Devonian) | Pecos | 1 | 16.6K | 960K | by Jan 1993 – Apr 1999 |
| University 31 O-10-45712 | Mid-States Operating Company only | Taylor Link | Pecos | 1 | 16.4K | 0 | Jan 2014 – Aug 2026 |