| Galveston 215 G-3-208232 | Emerald Gather and Trans, LLC only | Galveston 220-L (5790) | Galveston-LB | 1 | 2.36M | 3.26M | Oct 2004 – Jul 2026 |
| Windy Mountain 7879 2U G-10-287156 | PDC Permian, Inc. only | Phantom (Wolfcamp) | Reeves | 1 | 369K | 2.16M | Jan 2019 – Aug 2026 |
| S.T. 214-L S/2 NW/4 G-3-283659 | Emerald Gather and Trans, LLC only | Galveston 220-L (5790) | Galveston-LB | 1 | 331K | 513K | May 2017 – Jul 2026 |
| Windy Mountain 7879 1U G-10-287143 | PDC Permian, Inc. only | Phantom (Wolfcamp) | Reeves | 1 | 316K | 2.39M | Jan 2019 – Aug 2026 |
| Blackstone Minerals Unit A-979 G-6-190726 | Rockstar Production, LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 101K | 2.05M | Jun 2002 – Aug 2026 |
| Anders Gas Unit G-2-144878 | Scana Petroleum Resources, Inc. only | El Torito (Yegua 7957) | Jackson | 1 | 97.3K | 386K | by Jan 1993 – Jan 1995 |
| Amacker, V. T. 79 G-9-210686 | Civitas Permian Operating, LLC only | Amacker-Tippett (Devonian) | Upton | 1 | 95.8K | 2.38M | Apr 2005 – Apr 2016 |
| Vergara 1679 G-4-194505 | Hilcorp Energy Company only | Vaquillas Ranch (Lobo Cons.) | Webb | 1 | 95.5K | 4.45M | Mar 2003 – Aug 2026 |
| Fritzlen-William 179/174 A G-14-298949 | Mewbourne Oil Company only | Lipscomb (Cherokee Shale) | Lipscomb | 1 | 81.1K | 614K | Aug 2024 – Aug 2026 |
| SGR 79 Lip G-14-270984 | Unbridled Resources, LLC only | Lipscomb (Cleveland) | Lipscomb | 1 | 75.3K | 190K | Jun 2013 – Aug 2026 |
| Amacker, V.T. 79 G-9-215441 | Civitas Permian Operating, LLC only | Amacker-Tippett (Devonian) | Upton | 1 | 68K | 1.2M | Dec 2005 – Oct 2021 |
| Vergara 1679-W G-4-145365 | Hilcorp Energy Company only | Vaquillas Ranch (Lobo Cons.) | Webb | 1 | 64.6K | 4.32M | Apr 1993 – Oct 2014 |
| Vergara 1679 G-4-183930 | Hilcorp Energy Company only | Vaquillas Ranch (Lobo Cons.) | Webb | 1 | 60K | 3.81M | Jul 2001 – Aug 2026 |
| State Tract 279 G-4-164696 | Tema Oil and Gas Company only | Conn Brown Harbor (Frio "C") | Aransas | 1 | 56.5K | 384K | Aug 1997 – Apr 2003 |
| Langtry-Shirley Trust G-2-256871 | Continental Operating Co. only | Mineral, West (7900) | Bee | 1 | 52.2K | 166K | Apr 2010 – Jan 2018 |
| Koch Little '779' G-14-270438 | Mewbourne Oil Company only | Lipscomb (Cleveland) | Lipscomb | 1 | 47.1K | 881K | Dec 2012 – Aug 2026 |
| State Tract 206 G-3-216134 | Layton Energy Inc. only | Red Fish Reef, North (Frio 7920 | Chambers | 1 | 37.9K | 511K | Mar 2005 – Nov 2010 |
| Killam Mineral Fee "601" G-4-148849 | Killam Oil Co., Ltd. only | Villegas (Middle Wilcox 7950) | Webb | 1 | 37.7K | 1.88M | Mar 1994 – Jul 2008 |
| Ryan 1795 O G-1-272497 | BPX Operating Company only | A.W.P. (Olmos) | McMullen | 1 | 36.6K | 1M | Aug 2013 – May 2026 |
| Catto Heirs Unit #2 G-4-143155 | Killam Oil Co., Ltd. only | Villegas (Middle Wilcox 7950) | Webb | 1 | 36.5K | 2.46M | by Jan 1993 – Dec 2022 |
| Weidner, Otto-Brigham -795- G-14-276515 | Mewbourne Oil Company only | Lipscomb (Cleveland) | Lipscomb | 1 | 35.2K | 1.76M | Nov 2014 – Aug 2026 |
| Tovar West-Lloyd 79 a Unit G-1-263904 | Javelin Energy Partners Mgmt LLC only | Briscoe Ranch (Eagleford) | Maverick | 1 | 32K | 217K | Oct 2011 – Aug 2026 |
| Cage Ranch 656 G-4-257626 | BXP Operating, LLC only | Cage Ranch (Vxbg. 7990) | Brooks | 1 | 31.4K | 431K | Jun 2010 – Oct 2015 |
| Duncan Ranch "B" G-3-258907 | Milagro Exploration, LLC only | Hollywood, South (Frio 7900) | Matagorda | 1 | 29.8K | 1.54M | Nov 2010 – Feb 2013 |
| Trenfield "790" G-14-237151 | Mewbourne Oil Company only | Lipscomb (Cleveland) | Lipscomb | 1 | 27.7K | 659K | Apr 2008 – Aug 2026 |
| Amacker, V. T. 79 G-9-238795 | Civitas Permian Operating, LLC only | Amacker-Tippett (Devonian) | Upton | 1 | 27.6K | 853K | Jan 2008 – Feb 2022 |
| K & H Fee "2042" G-4-107363 | Killam Oil Co., Ltd. only | Villegas (Middle Wilcox 7950) | Webb | 1 | 27.1K | 893K | by Jan 1993 – Mar 2000 |
| Amacker, V. T. 79 G-9-247563 | Civitas Permian Operating, LLC only | Amacker-Tippett (Devonian) | Upton | 1 | 27.1K | 319K | Feb 2009 – Oct 2023 |
| Dyer G-3-172760 | CML Exploration, LLC only | Moores (Yegua 7900) | Fort Bend | 1 | 25.3K | 2.59M | Feb 1999 – Feb 2018 |
| Ryan 1795 O G-1-273328 | BPX Operating Company only | A.W.P. (Olmos) | McMullen | 1 | 23.2K | 842K | May 2014 – Aug 2025 |
| Weidner 798 G-14-219432 | Highmark Energy Operating, LLC only | Lipscomb (Cleveland) | Lipscomb | 1 | 23.1K | 210K | Jun 2006 – Sep 2015 |
| Vergara 1679 G-4-116493 | Hilcorp Energy Company only | Vaquillas Ranch (Lobo Cons.) | Webb | 1 | 22.8K | 2.71M | Jul 1994 – Aug 2026 |
| Vergara 1679 G-4-185487 | Hilcorp Energy Company only | Vaquillas Ranch (Lobo Cons.) | Webb | 1 | 22.2K | 2.37M | Oct 2001 – Aug 2026 |
| Vergara 1679-W G-4-117459 | Hilcorp Energy Company only | Vaquillas Ranch (Lobo Cons.) | Webb | 1 | 21.9K | 1.79M | by Jan 1993 – Aug 2026 |
| Trenfield '796' G-14-269088 | Mewbourne Oil Company only | Lipscomb (Cleveland) | Lipscomb | 1 | 21.7K | 904K | Aug 2012 – Aug 2026 |
| Killam Mineral Fee "601" G-4-152575 | Killam Oil Co., Ltd. only | Villegas (Middle Wilcox 7950) | Webb | 1 | 21.5K | 3.45M | Dec 1994 – Aug 2026 |
| Novak Gas Unit G-3-88173 | Dynamic Production, Inc. only | Tavener, East (7950) | Fort Bend | 1 | 20.6K | 1.89M | by Jan 1993 – Jan 2013 |
| K&H Fee "574" G-4-160856 | Killam Oil Co., Ltd. only | Villegas (Middle Wilcox 7950) | Webb | 1 | 20.2K | 2.53M | Nov 1996 – Jan 2016 |
| Vastar-Duncan "E" G-3-171201 | Walter Oil & Gas Corporation only | Egypt (7950) | Wharton | 1 | 19.7K | 2.58M | Oct 1998 – Apr 2001 |
| Wtu Robinson G-2-209990 | Britanco, L.L.C. only | Tuleta, West (Slick-Wilcox 7900) | Bee | 1 | 18.5K | 969K | Apr 2005 – Aug 2026 |
| Lambert Gas Unit G-2-234183 | Hilcorp Energy Company only | Tom Oconnor (7930) | Refugio | 1 | 18.2K | 887K | Jan 2008 – Feb 2009 |
| Duncan Ranch "A" G-3-244604 | Milagro Exploration, LLC only | Hollywood, South (Frio 7900) | Matagorda | 1 | 16.7K | 1.09M | Dec 2008 – Oct 2012 |
| Yturria G-4-243876 | La Sara Operating Company, LLC only | La Sara, E. (7940) | Willacy | 1 | 16.4K | 359K | Sep 2007 – Feb 2013 |
| Frost National Bank G-4-138439 | Hilcorp Energy Company only | Villegas (Middle Wilcox 7950) | Webb | 1 | 16.3K | 2.7M | by Jan 1993 – Aug 2026 |
| Frost National Bank G-4-123572 | Hilcorp Energy Company only | Villegas (Middle Wilcox 7950) | Webb | 1 | 16.1K | 3.01M | by Jan 1993 – Aug 2026 |
| Ballentine "794" G-14-268183 | Mewbourne Oil Company only | Lipscomb (Cleveland) | Lipscomb | 1 | 15.4K | 1.13M | Nov 2012 – Aug 2026 |
| Trenfield "791" G-14-258249 | Mewbourne Oil Company only | Lipscomb (Cleveland) | Lipscomb | 1 | 15.2K | 997K | Apr 2010 – Aug 2026 |
| S.T. 278/279-L Unit G-3-229914 | Tri-C Resources, LLC only | Dolphin Prospect (Rob M 8100) | Galveston-LB | 1 | 14.9K | 4.94M | Jan 2008 – Dec 2009 |
| Rupp G-4-171617 | Maguire Oil Company only | Ann Mag, West (7900 Nabors Sd.) | Brooks | 1 | 14.5K | 543K | Nov 1998 – Nov 1999 |
| Frost National Bank G-4-125282 | Conocophillips Company only | Villegas (Middle Wilcox 7950) | Webb | 1 | 14.2K | 1.1M | by Jan 1993 – Sep 2002 |