| Piloncillo G-1-281984 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Webb | 1 | 29.1K | 713K | Mar 2017 – Apr 2026 |
| Piloncillo G-1-271192 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Webb | 1 | 29.1K | 519K | Apr 2013 – Apr 2026 |
| Miller, R. N. O-11-63411 | Finaly, Jeremiah I. only | Miller (Spraberry) | Borden | 2 | 29K | 22 | by Jan 1993 – Oct 2018 |
| Davis, W. J. "A" G-4-174031 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 29K | 6.47M | Jun 1999 – Oct 2018 |
| Briscoe Cochina East Ranch G-1-268680 | Javelin Energy Partners Mgmt LLC only | Briscoe Ranch (Eagleford) | La Salle | 1 | 29K | 332K | Dec 2012 – Aug 2026 |
| Briscoe Catarina West G-1-286660 | Javelin Energy Partners Mgmt LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 28.9K | 442K | Sep 2018 – Nov 2024 |
| Boston Texas Land & Trust G-4-272976 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 28.8K | 1.82M | Apr 2014 – Aug 2026 |
| Boston Texas Land & Trust G-4-272973 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 28.7K | 2.11M | Mar 2014 – Aug 2026 |
| Piloncillo G-1-267068 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Webb | 1 | 28.7K | 1.04M | Mar 2012 – Aug 2026 |
| Trappe -A- O-1-10112 | First Light Operating, LLC only | Marcelina Creek (Austin Chalk) | Wilson | 2 | 28.6K | 8.19K | Feb 2006 – Oct 2011 |
| Piloncillo G-1-271193 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 28.6K | 389K | Jun 2013 – Aug 2026 |
| King Ranch Laguna Larga O-4-13745 | EOG Resources, Inc. only | Tijerina-Canales-Blucher ( H-63) | Kleberg | 2 | 28.6K | 15.4K | Mar 2013 – Sep 2018 |
| Petty Ranch O-1-14322 | Kerns O & G, Inc. only | Catarina, SW (San Miguel,oil) | Webb | 2 | 28.5K | 117K | Dec 2000 – Sep 2001 |
| Briscoe Catarina East GU1 G-1-280409 | SM Energy Company only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 28.5K | 255K | Feb 2015 – Jun 2025 |
| Gates Ranch O-1-14359 | Lewis Petro Properties, Inc. only | Catarina, SW. (Olmos) | Dimmit | 1 | 28.5K | 112K | Jul 2001 – Jul 2024 |
| Piloncillo G-1-268416 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Webb | 1 | 28.4K | 563K | Sep 2012 – Apr 2026 |
| Keirn, Pearl G-4-157999 | Fina Oil & Chemical Company only | McAllen (6900) | Hidalgo | 1 | 28.4K | 250K | Nov 1995 – Oct 1996 |
| Shelton, Ben O-2-8901 | Finaly Resources LLC only | Ben Shelton (7350) | Victoria | 1 | 28.3K | 177K | Sep 2004 – Sep 2019 |
| Moore-Terrell O-2-8328 | Terrafina Energy, LLC only | Berclair, E. (Vicksburg) | Goliad | 1 | 28.1K | 2.6K | Oct 1997 – Nov 2025 |
| Nina O-10-39143 | Trigeo Energy, LLC only | Credo, E. (Wolfcamp) | Sterling | 1 | 28.1K | 289K | Oct 2008 – Jul 2024 |
| Petty Ranch G-1-165363 | White Oak Operating Company LLC only | Catarina, SW. (San Miguel-Gas) | Webb | 1 | 27.9K | 1.45M | Oct 1997 – Feb 2016 |
| Lina O-3-11758 | Ernest Operating Company only | Willard (Navarro) | Burleson | 3 | 27.8K | 51 | by Jan 1993 – Aug 2026 |
| Winslow, J. R. O-3-13694 | Durango Resources Corp. only | Tamina (Chase Sand) | Montgomery | 1 | 27.8K | 611 | by Jan 1993 – Feb 2015 |
| TSL 33105/TR 53/ G-4-194843 | White Marlin Operating Co, LLC only | Encinal Channel (FB-1A, M-4) | Nueces | 1 | 27.8K | 2.06M | Apr 2003 – Oct 2011 |
| Bendele, Helen, Etal O-1-1720 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 31 | 27.8K | 21 | by Jan 1993 – Aug 2026 |
| Piloncillo G-1-280159 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 27.8K | 694K | Apr 2015 – Aug 2026 |
| Briscoe Catarina West G-1-284144 | Javelin Energy Partners Mgmt LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 27.7K | 208K | Oct 2017 – Jul 2025 |
| Dixie Mortgage-Pawelek Gas Unit G-4-209102 | STX Operating Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 27.7K | 1.22M | Feb 2005 – Aug 2026 |
| Ica Chevron "12" O-10-37951 | Propel Energy, LLC only | Pinal Dome, Central (Delaware) | Loving | 2 | 27.7K | 72.7K | Jun 2006 – Sep 2012 |
| Fina Conoco Fee G-4-159772 | Fina Oil & Chemical Company only | Frost (Frio 14) | Starr | 1 | 27.6K | 53.4K | Oct 1995 – Jul 1997 |
| Piloncillo G-1-266761 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 27.6K | 639K | Sep 2011 – Aug 2026 |
| TSL M-098041/ TR 52/ G-4-273884 | White Marlin Operating Co, LLC only | Encinal Channel (FB-a, M-1) | Nueces | 1 | 27.4K | 1.78M | Jan 2014 – Jul 2017 |
| Fina O-11-67896 | Sharp Image Energy, Inc. only | Jayton (Penn., Lower) | Kent | 1 | 27.4K | 11 | Feb 1998 – Dec 1998 |
| Chapman G-4-194234 | Ventex Operating Corp. only | Arnold-David (Anomalina) | Nueces | 1 | 27.1K | 1.72M | Jul 2003 – Jul 2012 |
| Piloncillo G-1-271868 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Webb | 1 | 27.1K | 317K | Sep 2013 – Dec 2018 |
| Briscoe Catarina West G-1-269303 | Javelin Energy Partners Mgmt LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 27K | 465K | Feb 2013 – Aug 2026 |
| Pawelek O-1-14785 | First Light Operating, LLC only | Marcelina Creek (Austin Chalk) | Wilson | 1 | 27K | 7.97K | Jul 2006 – Jul 2026 |
| Piloncillo G-1-268413 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Webb | 1 | 26.9K | 567K | Sep 2012 – Aug 2026 |
| Brainard 63 G-14-279047 | Presidio Petroleum LLC only | Horsecreek N. E. (Cleveland) | Lipscomb | 1 | 26.9K | 288K | Oct 2015 – Aug 2026 |
| Piloncillo G-1-266754 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 26.9K | 211K | Aug 2011 – Apr 2015 |
| Interfinancial Corp. G-3-151733 | Wagner Oil Company only | Taylor Lake, E. (Anomalina 3) | Harris | 1 | 26.8K | 537K | Oct 1994 – Jul 1995 |
| Piloncillo G-1-270890 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 26.8K | 193K | Jul 2014 – Aug 2026 |
| Boston Texas Land & Trust G-4-266234 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 26.5K | 2.16M | Nov 2012 – Aug 2026 |
| Wiesehan-Walker Gas Unit G-4-145836 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 26.5K | 7.16M | May 1993 – Oct 2022 |
| Schmidt, Oscar O-1-1724 | Production Resources, Inc. only | Taylor-Ina | Medina | 24 | 26.5K | 29 | by Jan 1993 – Aug 2026 |
| Davis, W.J. G-4-69896 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 26.5K | 3.31M | by Jan 1993 – Aug 2026 |
| Schmidt, G.E. O-1-7141 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 16 | 26.4K | 21 | by Jan 1993 – Aug 2026 |
| Salinas, M. G-4-232249 | Merit Energy Company only | Jeffress, E. (Vicksburg T) | Hidalgo | 1 | 26.4K | 2.04M | Oct 2007 – Aug 2026 |
| Salinas, B. Gas Unit G-4-84465 | Merit Energy Company only | Jeffress, E. (Vicksburg T) | Hidalgo | 1 | 26.3K | 707K | by Jan 1993 – Dec 2019 |
| Boston Texas Land & Trust G-4-272965 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 26.2K | 1.53M | Feb 2014 – Aug 2026 |