| Davis, W. J. "A" G-4-175052 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 54.5K | 7.28M | Sep 1999 – Aug 2026 |
| Bumpass, E.B. & Tinah H. O-8-28126 | Ledger Operating Corporation only | Truby (Palo Pinto) | Jones | 1 | 54.5K | 59.6K | Mar 1997 – Jan 2026 |
| Davis, W. J. "A" G-4-270340 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 54.4K | 2.86M | Jun 2013 – Aug 2026 |
| Piloncillo G-1-280369 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 54.2K | 410K | Aug 2015 – Aug 2026 |
| Briscoe Catarina Ranch G-1-272162 | Javelin Energy Partners Mgmt LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 54.2K | 516K | Feb 2014 – Aug 2026 |
| Boston Texas Land & Trust G-4-10990 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 54.1K | 3.55M | by Jan 1993 – Aug 2026 |
| Briscoe Cochina East Ranch G-1-268681 | Javelin Energy Partners Mgmt LLC only | Briscoe Ranch (Eagleford) | La Salle | 1 | 54K | 462K | Dec 2012 – Aug 2026 |
| Salinas, M. G-4-170405 | Merit Energy Company only | Jeffress, S.E. (Vicksburg T) | Hidalgo | 1 | 53.8K | 3.38M | Jan 1998 – Aug 2026 |
| Dickson,roberta el Al,trustees E O-10-24931 | Armor Petroleum, Inc. only | Pinal Dome (Delaware) | Loving | 1 | 53.7K | 51.2K | by Jan 1993 – Sep 2012 |
| Carminati, P.A. O-13-23611 | Wise Production Company only | Wagg (Conglomerate) | Montague | 2 | 53.5K | 24 | by Jan 1993 – Aug 2026 |
| Moore, G. O-2-8217 | Terrafina Energy, LLC only | Berclair, E. (Vicksburg) | Goliad | 1 | 53.5K | 4.79K | Oct 1996 – Jul 2026 |
| Briscoe Catarina East G-1-272328 | SM Energy Company only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 53.3K | 619K | Aug 2013 – Aug 2026 |
| Briscoe Catarina Ranch G-1-272164 | Javelin Energy Partners Mgmt LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 53.3K | 529K | Feb 2014 – Aug 2026 |
| Walter Co. "B" G-3-186632 | Ballard Exploration Company,inc. only | China (Vicksburg) | Jefferson | 1 | 53.2K | 710K | Oct 2001 – Sep 2003 |
| Briscoe Catarina North G-1-266908 | Javelin Energy Partners Mgmt LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 53.1K | 910K | Mar 2012 – Jul 2026 |
| Btlt G-4-247544 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Starr | 1 | 53.1K | 2.42M | Jan 2009 – Aug 2026 |
| Johnson, C. G. Gas Unit G-4-275513 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 52.9K | 4.03M | Dec 2014 – Aug 2026 |
| Piloncillo G-1-265815 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Webb | 1 | 52.8K | 1.97M | Jun 2012 – Aug 2026 |
| Sabrina Unit O-3-14892 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk-3) | Burleson | 1 | 52.8K | 217K | by Jan 1993 – Jan 2026 |
| JL Nutt HB O-10-49406 | Finaly Resources LLC only | Wolfbone (Trend Area) | Pecos | 2 | 52.7K | 327K | Aug 2017 – May 2026 |
| Briscoe Catarina North G-1-270544 | Javelin Energy Partners Mgmt LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 52.7K | 507K | Jul 2013 – Aug 2026 |
| Piloncillo G-1-281985 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Webb | 1 | 52.6K | 1.34M | Mar 2017 – Aug 2026 |
| Briscoe Catarina North G-1-295871 | Javelin Energy Partners Mgmt LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 52.4K | 332K | Aug 2023 – Aug 2026 |
| Piloncillo G-1-270912 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Webb | 1 | 52.4K | 1.25M | May 2013 – Aug 2026 |
| Briscoe Catarina Ranch G-1-272161 | Javelin Energy Partners Mgmt LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 52.4K | 569K | Feb 2014 – Aug 2026 |
| Briscoe Catarina West G-1-278222 | Javelin Energy Partners Mgmt LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 52.4K | 661K | Sep 2017 – Aug 2026 |
| Lutenbacher O-2-57 | Terrafina Energy, LLC only | Berclair (Vicksburg) | Goliad | 15 | 52.4K | 32.5K | by Jan 1993 – Feb 2020 |
| Piloncillo G-1-271659 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 52.2K | 289K | Sep 2013 – Aug 2026 |
| Briscoe Catarina North G-1-270632 | Javelin Energy Partners Mgmt LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 52.1K | 595K | Jul 2013 – Aug 2026 |
| Briscoe Catarina West Unit A G-1-286602 | Javelin Energy Partners Mgmt LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 52.1K | 672K | Sep 2018 – Aug 2026 |
| Salinas, Fausto et Al G-4-185840 | Petrovybe Opco LLC only | Samano (Massive 7200) | Starr | 1 | 52.1K | 3.87M | Aug 2001 – Aug 2026 |
| Piloncillo G-1-277988 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 52K | 1.49M | Dec 2014 – Aug 2026 |
| Piloncillo G-1-270913 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 52K | 530K | Jun 2013 – Aug 2026 |
| Piloncillo G-1-283868 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Webb | 1 | 52K | 890K | Aug 2017 – Aug 2026 |
| Wiesehan-Walker Gas Unit G-4-65595 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 51.9K | 4.45M | by Jan 1993 – Aug 2026 |
| Briscoe Catarina West G-1-269495 | Javelin Energy Partners Mgmt LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 51.9K | 661K | Jan 2013 – Aug 2026 |
| Piloncillo G-1-271366 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 51.7K | 374K | Jun 2013 – Aug 2026 |
| Piloncillo G-1-280288 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Webb | 1 | 51.6K | 1.61M | Sep 2015 – Aug 2026 |
| Wiesehan-Walker Gas Unit G-4-187343 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 51.6K | 4.72M | Feb 2002 – Aug 2026 |
| Boston Texas Land & Trust G-4-254326 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 51.6K | 1.7M | Jan 2010 – Aug 2026 |
| Briscoe Catarina Ranch G-1-253227 | Javelin Energy Partners Mgmt LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 51.6K | 425K | Sep 2009 – Aug 2026 |
| Schmidt, Lenora O-1-1723 | Production Resources, Inc. only | Taylor-Ina | Medina | 36 | 51.5K | 28 | by Jan 1993 – Aug 2026 |
| Piloncillo G-1-281397 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Webb | 1 | 51.5K | 1.32M | Apr 2016 – Aug 2026 |
| Piloncillo G-1-271187 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 51.5K | 432K | Jun 2013 – Aug 2026 |
| Piloncillo G-1-283900 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Webb | 1 | 51.3K | 1.17M | Aug 2017 – Aug 2026 |
| Johnson, C. G. Gas Unit G-4-273220 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 51.2K | 4.1M | Apr 2014 – Aug 2026 |
| Briscoe Catarina North G-1-271036 | Javelin Energy Partners Mgmt LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 51.1K | 570K | Jul 2013 – Aug 2026 |
| Bohn, Tina G-13-235662 | Devon Energy Production Co, L.P. only | Newark, East (Barnett Shale) | Denton | 1 | 51K | 1.21M | Oct 2007 – Jan 2018 |
| Piloncillo G-1-267532 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Webb | 1 | 51K | 1.65M | Feb 2012 – Aug 2026 |
| Piloncillo G-1-270260 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Webb | 1 | 50.9K | 868K | Mar 2013 – Aug 2026 |