| Andrews Unit O-10-34968 | Hilcorp Energy Company only | Andrews (Wolfcamp-Penn.) | Andrews | 97 | 9.44M | 8.4M | Jul 1996 – Aug 2026 |
| University Block 9 /Penn/ Unit O-10-21413 | XTO Energy Inc. only | University Block 9 (Penn.) | Andrews | 70 | 3.57M | 7.46M | by Jan 1993 – Aug 2026 |
| Southwest Andrews Unit O-10-35543 | Morningstar Operating LLC only | Andrews (Wolfcamp-Penn.) | Andrews | 37 | 2.49M | 3.88M | Dec 1997 – Aug 2026 |
| Link, L. C. O-10-37324 | Hilcorp Energy Company only | Andrews (Wolfcamp-Penn.) | Andrews | 3 | 759K | 703K | Jun 2004 – Aug 2026 |
| University -JC- O-10-32724 | Morningstar Operating LLC only | University Block 9 (Penn.) | Andrews | 4 | 518K | 1.39M | by Jan 1993 – Aug 2026 |
| Parker, J. E. "T" O-10-34706 | Morningstar Operating LLC only | Andrews (Wolfcamp-Penn.) | Andrews | 2 | 489K | 794K | Oct 1995 – Aug 2026 |
| Brangus University O-10-34556 | Morningstar Operating LLC only | University Block 9 (Penn.) | Andrews | 3 | 428K | 273K | Jul 1995 – Aug 2026 |
| Clarke, Frank Jr. NCT-1 O-10-34675 | Hilcorp Energy Company only | Andrews (Wolfcamp-Penn.) | Andrews | 4 | 421K | 149K | Oct 1995 – Aug 2026 |
| Gray, Columbus O-10-36975 | GL Energy Operating LLC only | Deep Rock (Penn.) | Andrews | 5 | 394K | 136K | Sep 2002 – Aug 2026 |
| Clark, Frank O-10-34704 | Morningstar Operating LLC only | Andrews (Wolfcamp-Penn.) | Andrews | 4 | 366K | 670K | Oct 1995 – Aug 2026 |
| Parker, J. E. -E- Unit O-10-34695 | Morningstar Operating LLC only | Andrews (Wolfcamp-Penn.) | Andrews | 1 | 295K | 291K | Oct 1995 – Aug 2026 |
| Parker O-10-34667 | Morningstar Operating LLC only | Andrews (Wolfcamp-Penn.) | Andrews | 1 | 281K | 250K | Oct 1995 – Aug 2026 |
| Boner, J. W. -B- O-10-32517 | GL Energy Operating LLC only | Deep Rock (Penn.) | Andrews | 4 | 279K | 158K | by Jan 1993 – Aug 2026 |
| Kemp Deep O-10-31857 | Morningstar Operating LLC only | Deep Rock (Penn.) | Andrews | 3 | 272K | 391K | by Jan 1993 – Aug 2026 |
| Parker, J. E. "Z" O-10-34700 | Morningstar Operating LLC only | Andrews (Wolfcamp-Penn.) | Andrews | 3 | 266K | 324K | Oct 1995 – Aug 2026 |
| Parker, J. E. -B- O-10-252 | Union Oil Company of California only | Andrews (Pennsylvanian) | Andrews | 7 | 251K | 369K | Sep 1993 – Sep 1995 |
| Parker, J. E. -E- O-10-34686 | Morningstar Operating LLC only | Andrews (Wolfcamp-Penn.) | Andrews | 4 | 239K | 917K | Oct 1995 – Aug 2026 |
| Parker, J. E. "D" Unit O-10-34697 | Morningstar Operating LLC only | Andrews (Wolfcamp-Penn.) | Andrews | 1 | 231K | 281K | Oct 1995 – Nov 2017 |
| Ford, H. M. -A- O-10-8714 | Grama Operating, LLC only | Parker (Pennsylvanian) | Andrews | 5 | 219K | 301K | by Jan 1993 – Dec 2018 |
| Herder, George O-10-21113 | Crescent Energy Operating, LLC only | McFarland (Pennsylvanian) | Andrews | 1 | 216K | 190K | by Jan 1993 – Jan 2017 |
| Deford, R. K. a/C #2 O-10-34691 | Morningstar Operating LLC only | Andrews (Wolfcamp-Penn.) | Andrews | 2 | 207K | 335K | Oct 1995 – Aug 2026 |
| Parker, J. E. -J- O-10-34681 | Hilcorp Energy Company only | Andrews (Wolfcamp-Penn.) | Andrews | 1 | 206K | 1.16K | Oct 1995 – Aug 2026 |
| Shell-Perkins O-10-28453 | Highmark Energy Operating, LLC only | Deep Rock (Penn.) | Andrews | 10 | 205K | 385K | by Jan 1993 – Aug 2026 |
| University -BR- O-10-11514 | Hilcorp Energy Company only | McFarland (Pennsylvanian) | Andrews | 2 | 204K | 315K | by Jan 1993 – Jul 2022 |
| Ica University 37 O-10-44128 | Flat Top Operating, LLC only | Triple-N (Penn., Upper) | Andrews | 3 | 199K | 222K | Apr 2013 – Jul 2026 |
| Holt -H- O-10-14433 | Kenworthy Oil Company only | Triple-N (Penn., Upper) | Andrews | 4 | 185K | 123K | by Jan 1993 – Aug 2026 |
| University JD O-10-31531 | Morningstar Operating LLC only | Bakke (Penn.) | Andrews | 2 | 183K | 397K | by Jan 1993 – Aug 2026 |
| Grafa Deep O-10-30953 | Morningstar Operating LLC only | Deep Rock (Penn.) | Andrews | 3 | 173K | 266K | by Jan 1993 – Aug 2026 |
| Parker, J. E. -B- O-10-34689 | Union Oil Company of California only | Andrews (Wolfcamp-Penn.) | Andrews | 7 | 163K | 374K | Oct 1995 – Nov 1997 |
| Parker, J. E. -C- (Amoco) O-10-34685 | Union Oil Company of California only | Andrews (Wolfcamp-Penn.) | Andrews | 7 | 154K | 362K | Oct 1995 – Nov 1997 |
| Ashton O-10-31014 | Morningstar Operating LLC only | Deep Rock (Penn.) | Andrews | 4 | 153K | 276K | by Jan 1993 – Aug 2026 |
| Ford, W. T. O-10-32287 | GL Energy Operating LLC only | Deep Rock (Penn.) | Andrews | 3 | 144K | 141K | by Jan 1993 – Aug 2026 |
| Negro, Perro O-10-34659 | Tacor Resources Inc only | Blackdog (Penn) | Andrews | 1 | 137K | 103K | Aug 1995 – Aug 2026 |
| Texas -MMM- O-10-16850 | Greystone Petroleum, LLC only | Triple-N (Penn., Upper) | Andrews | 1 | 135K | 76.3K | by Jan 1993 – Apr 2012 |
| Nolley, Bertha, -A- O-10-21051 | Crescent Energy Operating, LLC only | Nolley (Penn) | Andrews | 2 | 131K | 78.5K | by Jan 1993 – Aug 2026 |
| Ford, W. T. -B- O-10-31328 | GL Energy Operating LLC only | Deep Rock (Penn.) | Andrews | 4 | 130K | 157K | by Jan 1993 – Jul 2021 |
| Holt, O. B. Penn O-10-20407 | Olsen Energy Inc. only | Triple-N (Penn., Upper) | Andrews | 10 | 129K | 56.2K | by Jan 1993 – Aug 2026 |
| Fee -ZA- O-10-27238 | Fasken Oil and Ranch, Ltd. only | Fasken (Penn.) | Andrews | 13 | 125K | 1.37M | by Jan 1993 – Aug 2026 |
| W. T. Ford Deep O-10-31872 | Reverence Operating LLC only | Deep Rock (Penn.) | Andrews | 2 | 118K | 249K | by Jan 1993 – Aug 2026 |
| NE Bakke O-10-42378 | Hilcorp Energy Company only | Bakke (Penn.) | Andrews | 1 | 117K | 256K | Dec 2011 – Aug 2026 |
| Parker, J. E. -G- O-10-247 | Union Oil Company of California only | Andrews (Pennsylvanian) | Andrews | 3 | 112K | 107K | by Jan 1993 – Sep 1995 |
| Craddock O-10-34703 | Chevron Midcontinent, L.P. only | Andrews (Wolfcamp-Penn.) | Andrews | 2 | 106K | 222K | Oct 1995 – Sep 2017 |
| Parker-State O-10-34702 | Morningstar Operating LLC only | Andrews (Wolfcamp-Penn.) | Andrews | 5 | 103K | 138K | Oct 1995 – Dec 2025 |
| Crosby State O-10-31405 | Morningstar Operating LLC only | Deep Rock (Penn.) | Andrews | 3 | 97.8K | 112K | by Jan 1993 – Jul 2025 |
| Holt, O. B. O-10-21248 | Olsen Energy Inc. only | Triple-N (Penn., Upper) | Andrews | 3 | 95.9K | 80.7K | by Jan 1993 – Aug 2026 |
| Iverson Deep O-10-31205 | Morningstar Operating LLC only | Deep Rock (Penn.) | Andrews | 2 | 95.4K | 147K | by Jan 1993 – Aug 2026 |
| Deford Unit a/C #2 O-10-34692 | Morningstar Operating LLC only | Andrews (Wolfcamp-Penn.) | Andrews | 4 | 94.2K | 159K | Oct 1995 – Aug 2026 |
| Parker, J. E. 'X" O-10-34701 | Morningstar Operating LLC only | Andrews (Wolfcamp-Penn.) | Andrews | 1 | 92.3K | 117K | Oct 1995 – Aug 2026 |
| Parker, J. E. -D- O-10-34690 | Chevron Midcontinent, L.P. only | Andrews (Wolfcamp-Penn.) | Andrews | 3 | 89.9K | 109K | Oct 1995 – Nov 2006 |
| Fee -ZC- O-10-27543 | Fasken Oil and Ranch, Ltd. only | Fasken (Penn.) | Andrews | 1 | 89.3K | 119K | by Jan 1993 – Aug 2026 |