| Ninja 4-50 49 G-10-283587 | Permian Resources Operating, LLC only | Phantom (Wolfcamp) | Reeves | 1 | 706K | 5.13M | Mar 2017 – Apr 2026 |
| Samurai 4-49-50 G-10-284380 | Permian Resources Operating, LLC only | Phantom (Wolfcamp) | Reeves | 1 | 575K | 5.54M | Apr 2017 – Apr 2026 |
| Ninja 4-50 49 G-10-284880 | Permian Resources Operating, LLC only | Phantom (Wolfcamp) | Reeves | 1 | 517K | 3.73M | May 2018 – Apr 2026 |
| Cameron 49 G-10-290932 | Permian Resources Operating, LLC only | Phantom (Wolfcamp) | Ward | 1 | 513K | 3.47M | Apr 2021 – Apr 2026 |
| Samurai 4-49 50 G-10-284262 | Permian Resources Operating, LLC only | Phantom (Wolfcamp) | Reeves | 1 | 479K | 4.37M | Feb 2018 – Apr 2026 |
| Ninja 4-50 49 G-10-284875 | Permian Resources Operating, LLC only | Phantom (Wolfcamp) | Reeves | 1 | 447K | 3.48M | May 2018 – Apr 2026 |
| Samurai 4-49 50 G-10-284250 | Permian Resources Operating, LLC only | Phantom (Wolfcamp) | Reeves | 1 | 405K | 4.4M | Feb 2018 – Apr 2026 |
| Ninja 4-50 49 G-10-285119 | Permian Resources Operating, LLC only | Phantom (Wolfcamp) | Reeves | 1 | 380K | 2.73M | May 2018 – Apr 2026 |
| Ninja 4-50 49 G-10-285225 | Permian Resources Operating, LLC only | Phantom (Wolfcamp) | Reeves | 1 | 320K | 2.34M | May 2018 – Apr 2026 |
| Coble 496 G-14-280774 | BE Anadarko II, LLC only | Voodoo (Cleveland) | Hutchinson | 1 | 240K | 1.24M | Sep 2015 – Apr 2026 |
| Brainard 116/149 A G-14-295670 | Mewbourne Oil Company only | Lipscomb (Cleveland) | Lipscomb | 1 | 215K | 741K | Jun 2023 – Apr 2026 |
| St 49 Permanent Unit G-4-207092 | White Marlin Operating Co, LLC only | Encinal Channel (FB-3B, M-4) | Nueces | 1 | 149K | 8.79M | Nov 2004 – Aug 2016 |
| Ona Black 49 G-14-281599 | Unbridled Resources, LLC only | Mills Ranch (Granite Wash Cons.) | Wheeler | 1 | 123K | 879K | Mar 2013 – Apr 2026 |
| Slo-Poke 149 HG G-10-300820 | Apache Corporation only | Phantom (Wolfcamp) | Ward | 1 | 110K | 392K | Oct 2014 – Apr 2026 |
| Ona Black 49 G-14-266521 | Unbridled Resources, LLC only | Frye Ranch (Consolidated) | Wheeler | 1 | 99K | 2.93M | May 2012 – Apr 2026 |
| Merydith '499' G-14-275901 | Mewbourne Oil Company only | Pan Petro (Cleveland) | Lipscomb | 1 | 93.7K | 702K | Dec 2013 – Apr 2026 |
| Stanley 249 G-14-276477 | Presidio Petroleum LLC only | Lipscomb (Cleveland) | Lipscomb | 1 | 91.2K | 1.09M | Mar 2014 – Mar 2026 |
| Ona Black 49 SL G-14-262211 | Unbridled Resources, LLC only | Frye Ranch (Consolidated) | Wheeler | 1 | 89.8K | 1.05M | Jan 2011 – Apr 2012 |
| Acu "49" G-9-146665 | White Rock Oil & Gas, LLC only | Acu (Strawn) | Terrell | 1 | 87.8K | 4.87M | Aug 1993 – Apr 2026 |
| Halliburton 849 G-14-280607 | Latigo Petroleum, LLC only | Pan Petro (Cleveland) | Ochiltree | 1 | 79.2K | 529K | Jan 2016 – Mar 2026 |
| TSL 33100/ TR 49/ G-4-200108 | White Marlin Operating Co, LLC only | Encinal Channel (FB-3B, M-4) | Nueces | 1 | 79.2K | 5.02M | Jan 2004 – Apr 2006 |
| MF114921 HI 31-L G-3-249014 | Fieldwood Energy Offshore LLC only | High Island BLK 30-L (9100) | High IS-LB | 1 | 78.9K | 953K | Nov 2007 – Jan 2014 |
| Ona Black 49 G-14-265089 | Unbridled Resources, LLC only | Frye Ranch (Consolidated) | Wheeler | 1 | 78.5K | 7.09M | May 2012 – Apr 2026 |
| St 49 Permanent Unit G-4-221570 | White Marlin Operating Co, LLC only | Encinal Channel (FB-3B, M-4) | Nueces | 1 | 74.9K | 2.36M | Jul 2006 – Jul 2009 |
| Sportsman-Abraham 49/32 A G-14-296961 | Mewbourne Oil Company only | Hemphill (Douglas) | Hemphill | 1 | 70.2K | 537K | Jan 2024 – Apr 2026 |
| BP America a-249 Unit G-3-262413 | Zarvona Energy LLC only | Magnolia Springs (Austin Chalk) | Newton | 1 | 69.1K | 1.6M | Mar 2011 – Apr 2026 |
| Lucille Wright 149 G-14-266222 | Mmgl Txph, LLC only | Mathers Ranch (Granite Wash) | Hemphill | 1 | 68K | 3.83M | Mar 2012 – Apr 2026 |
| Urschel 49/3 G-14-297612 | Mewbourne Oil Company only | Lipscomb, S.E. (Cleveland) | Hemphill | 1 | 65K | 624K | Apr 2024 – Apr 2026 |
| Lucille Wright 149 (Allocation) G-14-276219 | Mmgl Txph, LLC only | Mathers Ranch (Granite Wash) | Hemphill | 1 | 64.4K | 5M | May 2013 – Apr 2026 |
| Stanley 249 G-14-272889 | Presidio Petroleum LLC only | Lipscomb (Cleveland) | Lipscomb | 1 | 59K | 1.17M | Nov 2013 – Mar 2026 |
| Stanley 249 G-14-272890 | Presidio Petroleum LLC only | Lipscomb (Cleveland) | Lipscomb | 1 | 58K | 1.47M | Oct 2013 – Mar 2026 |
| Ona Black 49 SL G-14-260163 | Unbridled Resources, LLC only | Frye Ranch (Consolidated) | Wheeler | 1 | 52.6K | 642K | Dec 2010 – Apr 2012 |
| Cooper 49 G-10-56791 | XTO Energy Inc. only | Block 16 (Ellen.) | Ward | 1 | 49.1K | 7.24M | Jan 1993 – Nov 2010 |
| Champion Int'l. Unit A-492 G-6-153335 | Swift Energy Company only | Brookeland (Austin Chalk, 8800) | Newton | 1 | 48.4K | 446K | Jan 1995 – Feb 1999 |
| State Tract 749 G-4-256685 | EOG Resources, Inc. only | Indian Point (Frio Cons.) | Nueces | 1 | 44.8K | 2.3M | Mar 2010 – May 2018 |
| Frost Trust 49 G-4-188049 | Hilcorp Energy Company only | Vaquillas Ranch (Lobo Cons.) | Webb | 1 | 44.4K | 2.75M | Jan 2002 – Apr 2026 |
| Lucille Wright 149 (Allocation) G-14-276519 | Mmgl Txph, LLC only | Mathers Ranch (Granite Wash) | Hemphill | 1 | 44.3K | 2.23M | May 2014 – Apr 2026 |
| GW Sportsman 49 G-14-270465 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 44K | 2.91M | Jan 2013 – Apr 2026 |
| State Tract 49 G-4-106090 | White Marlin Operating Co, LLC only | Encinal Channel (FB-a, N-1,2,3) | Nueces | 1 | 41.8K | 2.33M | Jan 1993 – Dec 2024 |
| Halliburton 849 G-14-280463 | Latigo Petroleum, LLC only | Pan Petro (Cleveland) | Ochiltree | 1 | 41.3K | 310K | Oct 2015 – Mar 2026 |
| Virginia 749 G-14-288179 | BE Anadarko II, LLC only | Allen-Parker (Marmaton) | Ochiltree | 1 | 40.3K | 135K | May 2019 – Apr 2026 |
| Frost Trust 49 G-4-191043 | Hilcorp Energy Company only | Vaquillas Ranch (Lobo Cons.) | Webb | 1 | 39.1K | 2.17M | Jul 2002 – Apr 2026 |
| State Tract 629-L, SE/4 G-2-101908 | Fairways Spec. Sales & Serv Inc only | Block 630-L (4950) | Matgrda IS-LB | 1 | 33K | 172K | Jan 1993 – Feb 1995 |
| Crook-Chapman 49 G-4-269642 | Apache Corporation only | Mobil-David (Anderson) | Nueces | 1 | 31.8K | 483K | Mar 2013 – Jul 2013 |
| Killam & Hurd Fee 1496 G-4-235678 | Killam Oil Co., Ltd. only | Umbrella, North (Lobo Cons.) | Webb | 1 | 31.1K | 2.44M | Mar 2008 – Jan 2023 |
| Acu "49" G-9-150448 | White Rock Oil & Gas, LLC only | Acu (Strawn) | Terrell | 1 | 29.7K | 2.79M | Jul 1994 – Apr 2026 |
| Thompson, J.A. G-4-129089 | Bargo Energy Company only | Riverside (4910) | Nueces | 1 | 25.9K | 243K | Jan 1993 – Jun 1996 |
| Barracuda 49 G-10-283806 | Apache Corporation only | Phantom (Wolfcamp) | Ward | 1 | 24.2K | 151K | Apr 2013 – Apr 2023 |
| Appelt et al Unit G-3-211589 | Square Mile Energy, L.L.C. only | Gilbert Woods (9490) | Jefferson | 1 | 23.5K | 496K | Jan 2005 – Apr 2007 |
| Dean G-2-281236 | Acock/Anaqua Operating Co., LP only | Telferner, East (4940) | Victoria | 1 | 23.3K | 29.5K | Feb 2016 – Apr 2019 |