| Piloncillo G-1-271871 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Webb | 1 | 23.4K | 278K | Sep 2013 – Apr 2026 |
| Hankamer "A" O-3-20387 | Samedan Oil Corporation only | Stowell (8590 Marginulina Sand) | Jefferson | 2 | 23.3K | 2.34K | by Jan 1993 – Feb 1996 |
| Kristina Leigh O-9-17003 | Summit Petroleum LLC only | Spraberry (Trend Area) | Upton | 2 | 23.2K | 96.4K | Oct 2009 – Mar 2017 |
| Briscoe Catarina West Unit A G-1-286438 | Javelin Energy Partners Mgmt LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 23K | 469K | Sep 2018 – Aug 2026 |
| Gates Ranch -A- O-1-7354 | Lewis Petro Properties, Inc. only | Catarina, SW (San Miguel,oil) | Dimmit | 3 | 22.9K | 265K | by Jan 1993 – Jul 2017 |
| Slick, T.B. Estate G-4-141908 | Fina Oil & Chemical Company only | Hinde (Vicksburg 21) | Starr | 1 | 22.9K | 1.26M | by Jan 1993 – Nov 1998 |
| Brainard O-14-7178 | Alpar Resources, Inc. only | Alpar-Lips (Marmaton) | Roberts | 1 | 22.9K | 26.1K | Jan 1997 – Dec 1998 |
| Corvina O-10-41581 | Diamondback E&P LLC only | Spraberry (Trend Area) | Martin | 1 | 22.9K | 89.1K | Jul 2011 – Jan 2025 |
| Copeland O-1-13599 | Stratco Operating Co., Inc. only | Marcelina Creek (Austin Chalk) | Wilson | 1 | 22.8K | 67 | by Jan 1993 – Dec 2000 |
| Szalwinski Unit O-1-7028 | Recoil Resources Operating, Inc. only | Marcelina Creek (Austin Chalk) | Wilson | 1 | 22.8K | 21 | by Jan 1993 – Feb 2017 |
| Dillon, B. W. -A- O-1-4811 | L & J Exploration, LLC only | Catarina, E. (Olmos A) | Dimmit | 1 | 22.8K | 259K | by Jan 1993 – May 2017 |
| South Texas Land, et Al O-3-26520 | Finaly Resources LLC only | Holub (5600) | Wharton | 1 | 22.8K | 79.4K | Aug 2013 – Dec 2018 |
| Schmidt, Ira G., Mrs. O-1-2458 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 8 | 22.8K | 95 | by Jan 1993 – Aug 2026 |
| St 49 Permanent Unit G-4-221667 | White Marlin Operating Co, LLC only | Encinal Channel (FB-a, M-2) | Nueces | 1 | 22.8K | 656K | Jun 2006 – Oct 2019 |
| TSL 33105 /TR 53/ G-4-40070 | White Marlin Operating Co, LLC only | Encinal Channel (FB-a, M-2) | Nueces | 1 | 22.6K | 1.52M | by Jan 1993 – Sep 2009 |
| Gates Ranch "A" O-1-14432 | Lewis Petro Properties, Inc. only | Catarina, SW. (Olmos) | Webb | 3 | 22.6K | 55.9K | Mar 2003 – Apr 2011 |
| Glover, A. O-3-11138 | Exxon Corp. only | Webster (Marginulina) | Harris | 1 | 22.4K | 40.7K | by Jan 1993 – Jan 1996 |
| Vastar/Sutton Unit O-3-23600 | Great Northern Energy, Inc only | Cardinal Place (Nodosaria) | Orange | 1 | 22.4K | 159K | Sep 1998 – Jun 2002 |
| Crawford "A" G-3-170307 | EOG Resources, Inc. only | Angelina (11,800) | Jefferson | 1 | 22.4K | 1.46M | Jul 1998 – Aug 2001 |
| Blucher, C. F. H. O-4-3192 | Logas Energy, LLC only | Tijerina-Canales-Blucher | Jim Wells | 10 | 22.3K | 52.3K | by Jan 1993 – Feb 2026 |
| Boston Texas Land & Trust G-4-286359 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 22.3K | 2.13M | Apr 2019 – Aug 2026 |
| Slick, T. B., Est. O-4-6230 | Totalfinaelf E&P USA Inc only | Hinde (Vksbg. No. 1, Lo. FB A) | Starr | 1 | 22.3K | 32 | by Jan 1993 – May 1996 |
| Dunlap, Samuel C. III O-1-4266 | Sabinal Resources, Inc. only | Big Wells(san Miguel, Lo., East) | Dimmit | 5 | 22.2K | 1.64K | by Jan 1993 – May 2014 |
| Sitterle, A. Unit O-2-4560 | Finaly Resources LLC only | Victoria | Victoria | 1 | 22.1K | 21 | by Jan 1993 – Apr 2026 |
| Dixie Mortgage-Pawelek Gas Unit G-4-212866 | STX Operating Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 22K | 3.15M | Jun 2005 – Aug 2026 |
| Ghinaudo, M. et al GU G-3-186173 | Hunt, Hassie Exploration Company only | Franks (Weiting, Consolidated) | Galveston | 1 | 22K | 521K | Oct 2001 – Mar 2006 |
| Schmidt, Bettye -B- O-1-1713 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 13 | 22K | 21 | by Jan 1993 – Aug 2026 |
| Neinast O-3-24277 | Chesapeake Operating, L.L.C. only | Giddings (Austin Chalk-3) | Washington | 1 | 22K | 514K | Oct 2002 – Sep 2018 |
| Piloncillo G-1-269182 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Webb | 1 | 22K | 439K | Mar 2013 – Aug 2026 |
| McVea/Wilson O-1-12466 | Finaly Resources LLC only | Pilgrim (Austin Chalk) | Gonzales | 1 | 21.7K | 12 | by Jan 1993 – Jun 2026 |
| Briscoe O-1-14710 | Crimson Energy Partners, L.P. only | Catarina, SW (San Miguel,oil) | Dimmit | 1 | 21.5K | 122K | May 2006 – Apr 2007 |
| Blanco G-2-218933 | Finaly Resources LLC only | Marshall (Middle Wilcox) | Goliad | 1 | 21.4K | 1.45M | May 2005 – Aug 2026 |
| Fina Conoco Fee O-4-12722 | Merit Energy Company only | Dee Davenport (3700) | Starr | 1 | 21.3K | 331K | Sep 1996 – Oct 1998 |
| TSL 33105/TR 53/ G-4-210173 | Sabco Operating Company only | Encinal Channel (FB-3B, M-4) | Nueces | 1 | 21.2K | 1.44M | Mar 2005 – Dec 2009 |
| Piloncillo G-1-268494 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Webb | 1 | 21.2K | 407K | Jul 2012 – Sep 2019 |
| Briscoe Catarina West Unit A G-1-286489 | Javelin Energy Partners Mgmt LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 21.1K | 368K | Sep 2018 – Aug 2026 |
| Brainard, E.S.F. "W" G-14-158545 | Mmgl Txph, LLC only | Mendota, NW. (Cherokee) | Hemphill | 1 | 21.1K | 793K | Mar 1996 – Aug 2026 |
| McAllen Fieldwide Unit G-4-154915 | Fina Oil & Chemical Company only | McAllen (Crutchfield) | Hidalgo | 1 | 21K | 2.02M | Jan 1995 – Oct 1999 |
| Boston Texas Land & Trust G-4-237125 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 21K | 3.26M | Mar 2008 – Aug 2026 |
| Farms, I.P. G-3-149427 | Peregrine Energy, Inc. only | Chocolate Bayou (Anamolina) | Brazoria | 1 | 20.9K | 1.66M | Apr 1994 – Mar 1997 |
| Salinas O-4-11048 | Hilcorp Energy Company only | Buena Suerte, N. (Tinney Sd.) | Duval | 1 | 20.9K | 19 | by Jan 1993 – Aug 2026 |
| Piloncillo G-1-283005 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 20.8K | 303K | May 2017 – Jul 2026 |
| Piloncillo G-1-268814 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Webb | 1 | 20.8K | 287K | Mar 2013 – Aug 2026 |
| Blucher, C. F. H. O-4-6401 | Mobil Producing TX. & N.M. Inc. only | Tijerina-Canales-Blucher ( 7330) | Jim Wells | 1 | 20.8K | 234K | by Jan 1993 – Jul 1998 |
| Brainard 61 G-14-264797 | Corlena Oil Company only | Parsell (Morrow, Lower) | Lipscomb | 1 | 20.8K | 4.58M | Jul 2011 – Aug 2026 |
| Salinas, Fausto G-4-186054 | Trinity River Energy Oper, LLC only | Samano (Massive 7200) | Starr | 1 | 20.8K | 1.24M | May 2001 – Jun 2008 |
| Boston Texas Land & Trust G-4-272981 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 20.7K | 1.67M | Jun 2014 – Feb 2022 |
| Stewart, Leruth O-10-39400 | Steller Energy & Investment Corp only | Esterlina (Ellenburger) | Sterling | 1 | 20.7K | 19.6K | Oct 2008 – Dec 2010 |
| Boston Texas Land & Trust G-4-241531 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 20.4K | 2.09M | Jan 2008 – Aug 2026 |
| Aztec-Schmidt S O-1-15590 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 14 | 20.4K | 0 | May 2011 – Aug 2026 |