| Humphreys Trust G-14-291308 | Presidio Petroleum LLC only | Lipscomb, S.E. (Cleveland) | Hemphill | 1 | 198K | 5.06M | Feb 2015 – Aug 2026 |
| Humphreys 31 G-14-278662 | Presidio Petroleum LLC only | Lipscomb, S.E. (Cleveland) | Hemphill | 1 | 104K | 400K | Jul 2015 – Aug 2026 |
| Humphreys 34 G-14-278964 | Presidio Petroleum LLC only | Lipscomb, S.E. (Cleveland) | Hemphill | 1 | 86.1K | 769K | Mar 2015 – Aug 2026 |
| Humphreys 36 G-14-269916 | Mmgl Txph, LLC only | Lipscomb, S.E. (Cleveland) | Hemphill | 1 | 83K | 817K | Nov 2012 – Aug 2026 |
| Humphreys G-3-206430 | Hughes Oil Operating, LLC only | Hardin, SW. (H. Daniel Sand) | Liberty | 1 | 76.8K | 4.57M | Nov 2004 – Apr 2015 |
| Humphreys Trust G-14-290517 | Presidio Petroleum LLC only | Lipscomb, S.E. (Cleveland) | Hemphill | 1 | 50.9K | 676K | Jan 2019 – Aug 2026 |
| Humphreys 37 G-14-278085 | Presidio Petroleum LLC only | Lipscomb, S.E. (Cleveland) | Hemphill | 1 | 39.4K | 478K | Feb 2015 – Aug 2026 |
| Humphreys 37 G-14-279243 | Presidio Petroleum LLC only | Lipscomb, S.E. (Cleveland) | Hemphill | 1 | 39K | 491K | Mar 2015 – Aug 2026 |
| Humphreys G-3-206426 | Smith Production Inc. only | Hardin, SW. (H. Daniel Sand) | Liberty | 1 | 37.9K | 2.56M | Nov 2004 – Apr 2006 |
| Lockhart -27- G-14-150162 | Unbridled Resources, LLC only | Humphreys, N.W. (Morrow Upper) | Hemphill | 1 | 37.3K | 4.23M | May 1994 – Jun 2016 |
| Humphreys 37 G-14-279065 | Presidio Petroleum LLC only | Lipscomb, S.E. (Cleveland) | Hemphill | 1 | 35.3K | 713K | Mar 2015 – Aug 2026 |
| Humphreys,b.f.heirs Gas Unit #1 G-6-97208 | Faulconer Energy, LLC only | Rosewood (Cotton Valley) | Upshur | 1 | 17.3K | 1.05M | by Jan 1993 – Aug 2026 |
| Humphreys G-14-176550 | Unbridled Resources, LLC only | Mathers Ranch (Douglas) | Hemphill | 1 | 7.36K | 1.47M | Mar 2000 – Aug 2026 |
| Humphreys G-14-175856 | Unbridled Resources, LLC only | Mathers Ranch (Douglas) | Hemphill | 1 | 7.12K | 1.19M | Dec 1999 – Mar 2016 |
| Humphreys G-14-91912 | Unbridled Resources, LLC only | Canadian, SE (Douglas) | Hemphill | 1 | 6.91K | 1.62M | by Jan 1993 – Jul 2019 |
| Humphreys G-14-184370 | United Oil & Shale LLC only | Canadian, SE (Douglas) | Hemphill | 1 | 5.23K | 961K | Apr 2001 – Mar 2015 |
| Humphreys G-14-178609 | Unbridled Resources, LLC only | Canadian (Douglas) | Hemphill | 1 | 5.03K | 707K | Aug 2000 – Sep 2019 |
| Humphreys, L. P. G-14-38825 | Mmgl Txph, LLC only | Feldman (Douglas) | Hemphill | 1 | 5K | 1.14M | by Jan 1993 – Aug 2026 |
| Humphreys, L.P. G-14-158395 | Mmgl Txph, LLC only | Canadian, SE (Douglas) | Hemphill | 1 | 4.82K | 897K | Apr 1996 – Mar 2009 |
| Humphreys G-14-184957 | Presidio Petroleum LLC only | Canadian, SE (Douglas) | Hemphill | 1 | 4.73K | 831K | Aug 2001 – Mar 2016 |
| Humphreys G-14-192339 | Unbridled Resources, LLC only | Canadian (Douglas) | Hemphill | 1 | 4.43K | 1.09M | Oct 2002 – Aug 2026 |
| Humphreys "K" G-14-174601 | Unbridled Resources, LLC only | Canadian, SE (Douglas) | Hemphill | 1 | 4.23K | 1.13M | Jul 1999 – Feb 2023 |
| Humphreys 39 G-14-174500 | Unbridled Resources, LLC only | Twister (Douglas) | Hemphill | 1 | 4.13K | 490K | Sep 1999 – Jan 2021 |
| Lockhart -19- G-14-150090 | Chesapeake Operating, Inc. only | Humphreys (Morrow, Upper) | Hemphill | 1 | 4K | 344K | May 1994 – Feb 2009 |
| Humphreys "K" G-14-172452 | Unbridled Resources, LLC only | Canadian, SE (Douglas) | Hemphill | 1 | 3.97K | 1.05M | Oct 1998 – Aug 2020 |
| Humphreys -33- G-14-118888 | Unbridled Resources, LLC only | Canadian, SE (Douglas) | Hemphill | 1 | 3.28K | 545K | by Jan 1993 – Oct 2015 |
| Humphreys G-14-176551 | Unbridled Resources, LLC only | Mathers Ranch (Douglas) | Hemphill | 1 | 3.13K | 781K | Mar 2000 – Aug 2020 |
| Humphreys "K" G-14-174928 | Unbridled Resources, LLC only | Canadian, SE (Douglas) | Hemphill | 1 | 3.05K | 870K | Oct 1999 – Aug 2026 |
| Humphreys G-14-175570 | Unbridled Resources, LLC only | Canadian (Douglas) | Hemphill | 1 | 2.72K | 613K | Nov 1999 – Feb 2023 |
| Humphreys, Marguerite G-14-53006 | Cory, Kenneth W. Ltd. only | Canadian, SE (Douglas) | Hemphill | 1 | 2.61K | 1.01M | by Jan 1993 – Aug 2026 |
| Humphreys 46 G-14-189068 | Unbridled Resources, LLC only | Twister (Douglas) | Hemphill | 1 | 2.53K | 726K | Apr 2002 – Aug 2026 |
| Humphreys G-14-283568 | Unbridled Resources, LLC only | Mathers Ranch (Tonkawa) | Hemphill | 1 | 2.43K | 176K | Apr 2016 – Feb 2025 |
| Humphreys -30- G-14-190863 | Unbridled Resources, LLC only | Canadian, SE (Douglas) | Hemphill | 1 | 2.3K | 492K | Aug 2002 – Dec 2024 |
| Humphreys G-14-176054 | Unbridled Resources, LLC only | Mathers Ranch (Douglas) | Hemphill | 1 | 2.22K | 604K | Dec 1999 – Aug 2026 |
| Humphreys -33- G-14-188430 | Unbridled Resources, LLC only | Canadian, SE (Douglas) | Hemphill | 1 | 2.19K | 560K | Mar 2002 – Dec 2024 |
| Humphreys -32- G-14-190088 | 4P Energy Texas, LLC only | Canadian, SE (Douglas) | Hemphill | 1 | 2.13K | 446K | Jun 2002 – Jun 2009 |
| Humphreys G-14-173643 | Unbridled Resources, LLC only | Mathers Ranch (Douglas) | Hemphill | 1 | 1.87K | 717K | May 1999 – Mar 2016 |
| Humphreys 46 G-14-185947 | Unbridled Resources, LLC only | Twister (Douglas) | Hemphill | 1 | 1.86K | 455K | Feb 2002 – Aug 2026 |
| Humphreys "K" G-14-189905 | Unbridled Resources, LLC only | Canadian, SE (Douglas) | Hemphill | 1 | 1.74K | 579K | Jul 2002 – Feb 2023 |
| Humphreys -32- G-14-188203 | Unbridled Resources, LLC only | Canadian, SE (Douglas) | Hemphill | 1 | 1.71K | 569K | Feb 2002 – May 2024 |
| Humphreys, L.P. G-14-85397 | Mmgl Txph, LLC only | Canadian, SE (Douglas) | Hemphill | 1 | 1.55K | 558K | by Jan 1993 – Oct 2018 |
| Humphreys G-14-184285 | Presidio Petroleum LLC only | Canadian, SE (Douglas) | Hemphill | 1 | 1.52K | 378K | Apr 2001 – Mar 2016 |
| Humphreys -40- G-14-145523 | Unbridled Resources, LLC only | Twister (Douglas) | Hemphill | 1 | 1.52K | 273K | May 1993 – May 2013 |
| Humphreys G-14-197589 | Unbridled Resources, LLC only | Mathers Ranch (Douglas) | Hemphill | 1 | 1.51K | 481K | Sep 2003 – Jun 2026 |
| Humphreys "K" G-14-175583 | Unbridled Resources, LLC only | Canadian, SE (Douglas) | Hemphill | 1 | 1.47K | 757K | Dec 1999 – Feb 2023 |
| Humphreys, L.P. G-14-85396 | Mmgl Txph, LLC only | Canadian, SE (Douglas) | Hemphill | 1 | 1.46K | 519K | by Jan 1993 – Oct 2017 |
| Humphreys, L. P. G-14-227988 | Mewbourne Oil Company only | Canadian, SE (Douglas) | Hemphill | 1 | 1.31K | 287K | Apr 2007 – Aug 2026 |
| Humphreys G-14-189289 | Unbridled Resources, LLC only | Canadian (Douglas) | Hemphill | 1 | 1.28K | 688K | Apr 2002 – Jul 2021 |
| Humphreys 39 G-14-91403 | EOG Resources, Inc. only | Twister (Douglas) | Hemphill | 1 | 1.06K | 397K | by Jan 1993 – Apr 1999 |
| Humphreys G-3-210893 | Heisey Ventures, Inc. only | Hardin, SW. (H. Daniel Sand) | Liberty | 1 | 1.05K | 61.9K | Aug 2005 – Dec 2010 |