| Johnson -76- O-10-41370 | R2Q Operating LLC only | Dimmitt (Delaware Cons) | Loving | 2 | 19.7K | 42.1K | Jul 2011 – Aug 2026 |
| University 20-11 O-10-35497 | OXY USA Inc. only | Block 20 (Delaware Cons.) | Winkler | 1 | 19.6K | 15.4K | Apr 1997 – Nov 2012 |
| Rape, J. M. O-10-22370 | Breck Operating Corp. only | Waha, West (Delaware) | Reeves | 5 | 19.4K | 37.3K | by Jan 1993 – Dec 2012 |
| H&M "B" O-10-27281 | Killer Rabbit Fields LLC only | Ken Regan (Delaware) | Reeves | 5 | 19.4K | 24.8K | May 1993 – Jan 2018 |
| Johnson "40" O-10-34594 | WPX Energy Permian, LLC only | Pinal Dome, Central (Delaware) | Loving | 2 | 19.3K | 31.3K | Jul 1995 – Feb 2015 |
| Martin Heirs G-6-279925 | Valence Operating Company only | Ware (Cotton Valley) | Harrison | 1 | 19.3K | 4.52M | Jan 2016 – Aug 2026 |
| Worsham -10- O-10-25928 | Rein Pusher Operating LLC only | Worsham (Delaware Sand) | Reeves | 1 | 19K | 21 | by Jan 1993 – Dec 2016 |
| Bell, Emily O-10-24886 | Parsley Energy Operations, LLC only | Worsham (Delaware Sand) | Reeves | 1 | 18.9K | 54.6K | by Jan 1993 – Feb 2016 |
| Red Bluff "10" O-10-36819 | TS Oil, LLC only | Ford, East (Delaware Sand) | Reeves | 3 | 18.8K | 23.2K | Feb 2002 – Oct 2020 |
| Kyle, Minnie O-10-17972 | Fulfer Oil and Cattle Co. only | Battleaxe (Delaware) | Loving | 1 | 18.6K | 99.7K | by Jan 1993 – Nov 2013 |
| Anthony & Tubb -A- O-10-16035 | Valle Algodon, LLC only | Worsham, South (Delaware Sand) | Reeves | 6 | 18.6K | 20 | by Jan 1993 – Aug 2026 |
| Travis O-10-28158 | Jetta Operating Company, Inc. only | Collie (Delaware) | Reeves | 1 | 18.6K | 26.5K | by Jan 1993 – Oct 2017 |
| Barstow -43- O-10-54835 | Jetta Operating Company, Inc. only | Collie (Delaware) | Ward | 2 | 18.5K | 60.1K | Feb 2020 – Jul 2026 |
| Texaco "9" O-10-33329 | E. & M. Tech Inc. only | Ken Regan (Delaware) | Reeves | 5 | 18.4K | 153K | by Jan 1993 – Aug 2004 |
| Wynne O-10-14735 | Shenandoah Petroleum Corporation only | Olds (Delaware) | Reeves | 2 | 18.3K | 709 | by Jan 1993 – Dec 2015 |
| Caldwell, Guy -A- O-10-33473 | Perimeter Resource Company only | Olds (Delaware) | Reeves | 3 | 18.3K | 42.7K | by Jan 1993 – Aug 2019 |
| Kyle, Sid O-10-20087 | LRR Pecos Valley, LLC only | El Mar (Delaware) | Loving | 2 | 18.2K | 67.7K | by Jan 1993 – Mar 2013 |
| Link, Sarah A., Etal O-10-19342 | Synergy Oil & Gas, Inc. (A) only | Tunstill, East (Delaware) | Loving | 10 | 17.9K | 66.5K | by Jan 1993 – Jan 2001 |
| Allen O-10-53405 | Jetta Operating Company, Inc. only | Collie (Delaware) | Reeves | 1 | 17.9K | 153K | Feb 2020 – Jul 2026 |
| Scott, F. H., Etal O-10-14018 | Kings CRK Land Oil & Cattle, LLC only | Scott (Delaware) | Ward | 1 | 17.8K | 10.7K | by Jan 1993 – Jul 2026 |
| Jones O-10-38269 | Citation Oil & Gas Corp. only | Dimmitt (Delaware Cons) | Loving | 1 | 17.8K | 90.2K | Jul 2007 – Nov 2020 |
| Ware, R.C. -AB- O-14-7261 | C. O. Oil and Gas, LLC only | Panhandle Hutchinson County Fld. | Hutchinson | 29 | 17.5K | 86.9K | May 1998 – Nov 2018 |
| Southern 38 O-10-44377 | Chevron U. S. A. Inc. only | Toro (Delaware) | Reeves | 1 | 17.4K | 19.7K | Jun 2014 – Jan 2024 |
| Ramsey, G. E. -34- O-10-42810 | Ring Energy, Inc. only | Geraldine (Delaware 3400) | Culberson | 1 | 17.3K | 13.6K | Jan 2012 – Feb 2020 |
| Bass TXL -45- O-10-39153 | Pdeh LLC only | Dimmitt (Delaware Cons) | Loving | 5 | 17.3K | 43.8K | Jul 2007 – Apr 2015 |
| Reeves "AK" Fee O-10-18549 | Teke Production LLC only | Ken Regan (Delaware) | Reeves | 4 | 17.2K | 20.4K | by Jan 1993 – Dec 2018 |
| Standard of Texas TXL O-10-15381 | Perimeter Resource Company only | Sabre (Delaware) | Reeves | 1 | 17.2K | 1.51K | Jun 1993 – Jul 2026 |
| Angonia O-3-19091 | Delaware Ecco Petroleum Inc. only | Kurten (Buda) | Brazos | 2 | 17.2K | 14.8K | by Jan 1993 – Jul 1997 |
| U-Tex -H- O-10-14643 | WTG Exploration only | Block 17, Southeast (Delaware) | Ward | 2 | 17K | 48.6K | by Jan 1993 – Nov 2025 |
| Mingus, V. P. O-10-16249 | Synergy Oil & Gas, Inc. (A) only | Tunstill, East (Delaware) | Loving | 5 | 17K | 16.9K | by Jan 1993 – Jan 2001 |
| Keasler, T. F. et Al O-10-31088 | Diamondback E&P LLC only | Worsham (Delaware Sand) | Reeves | 2 | 16.8K | 98.9K | by Jan 1993 – Jan 2022 |
| Billy Ware O-6-15533 | Oil & Gas Production, Inc. only | Ware (Pettit) | Marion | 1 | 16.8K | 0 | Aug 2017 – Aug 2026 |
| Miller, Robert O-10-13237 | Jetta Operating Company, Inc. only | Scott (Delaware) | Ward | 1 | 16.8K | 52K | by Jan 1993 – Apr 2015 |
| University -B- O-10-35577 | Lone Star Services only | Lion (Delaware) | Ward | 1 | 16.6K | 0 | Aug 1997 – Nov 2014 |
| Jumping Bear O-10-59165 | Seaboard Operating Co. only | Quito (Delaware-Consolidated) | Ward | 2 | 16.4K | 18.5K | May 2023 – Aug 2026 |
| Reeves -AA- Fee O-10-18484 | Concho Oilfield Serv & Oper Co. only | Sabre (Delaware) | Reeves | 1 | 16.4K | 2.43K | by Jan 1993 – Aug 2009 |
| J. C. State '12' O-10-37724 | OXY USA Inc. only | Collie (Delaware) | Reeves | 2 | 16.3K | 11.4K | Dec 2005 – Jan 2018 |
| Ware O-13-7430 | J B J Oil Properties, Inc. only | Young County Regular | Young | 1 | 16.3K | 206 | by Jan 1993 – Aug 2026 |
| Boulware O-9-17042 | Petx Operating LLC only | H-J (Crosscut) | Tom Green | 1 | 16.2K | 3.03K | Oct 2009 – Jul 2026 |
| Red Horse "29" O-10-38026 | Shenandoah Petroleum Corporation only | Rojo Caballos (Delaware) | Reeves | 6 | 16.2K | 13.9K | Dec 2006 – Oct 2020 |
| Jones, Eva M. Mrs. O-4-11861 | Collins & Ware, Inc. only | Stratton (E-4-7) | Nueces | 1 | 16.2K | 47K | by Jan 1993 – Feb 1999 |
| State of Texas -29- O-10-30272 | BTA Oil Producers, LLC only | Mentone, NE. (Delaware) | Loving | 1 | 16.1K | 6.54K | by Jan 1993 – Mar 2017 |
| Johnson, W. D., -48- O-10-19966 | Rodan, Inc. only | Grice (Delaware) | Loving | 1 | 16K | 64.5K | by Jan 1993 – Dec 2003 |
| Worsham -C- O-10-54841 | Jetta Operating Company, Inc. only | Collie (Delaware) | Reeves | 2 | 16K | 102K | Feb 2020 – Jul 2026 |
| Ware, R. C. -B- O-14-1235 | Fort Worth Natural Gas, Inc. only | Panhandle Hutchinson County Fld. | Hutchinson | 15 | 15.9K | 55.6K | by Jan 1993 – Apr 1998 |
| Johnson -E- O-10-12215 | BCP Resources, LLC only | Grice (Delaware) | Loving | 3 | 15.6K | 89.4K | by Jan 1993 – Oct 2021 |
| State "QK" O-10-25158 | Cimarex Energy Co. of Colorado only | Block 17, Southeast (Delaware) | Ward | 1 | 15.6K | 52.1K | by Jan 1993 – Jan 2013 |
| Neal, J. O. 49 O-10-37936 | CLR Secondary Recovery, LLC only | Coyanosa (Delaware Sd.) | Pecos | 1 | 15.6K | 26.3K | Sep 2006 – Sep 2020 |
| Johnson, W. D. et al -E- O-10-35561 | Forest Oil Corporation only | Dimmit, Northeast (Delaware SD) | Loving | 3 | 15.5K | 108K | Apr 1997 – Jun 2007 |
| Coale, A. H., Jr. O-10-32618 | Q Natural Resources, LLC only | Ken Regan (Delaware) | Reeves | 1 | 15.5K | 202 | by Jan 1993 – Apr 2026 |