| Shullanberger O-1-8449 | Blackbird Oil & Gas, LLC. only | Taylor-Ina | Medina | 27 | 8.87K | 78 | by Jan 1993 – Jan 2017 |
| Fina-Conoco Fee G-4-141857 | Merit Energy Company only | Rincon (Vicksburg Cons.) | Starr | 1 | 8.75K | 551K | by Jan 1993 – Aug 1994 |
| Slusser, L. L. Unit G-4-38847 | Fina Oil & Chemical Company only | Edinburg, S. (Marks 11100) | Hidalgo | 1 | 8.73K | 260K | by Jan 1993 – Nov 1999 |
| Fina Conoco Fee G-4-131896 | Fina Oil & Chemical Company only | Frost, North (Ashby) | Starr | 1 | 8.72K | 368K | by Jan 1993 – Aug 1996 |
| Riethmeyer,e. Gas Unit G-4-237523 | STX Operating Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 8.71K | 2.16M | Apr 2008 – Aug 2026 |
| Dixie Mortgage-Pawelek Gas Unit G-4-120743 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 8.69K | 1.9M | by Jan 1993 – Aug 2026 |
| Mosser, H.J. O-4-10479 | Finaly Resources LLC only | Alice (4800) | Jim Wells | 1 | 8.67K | 88 | by Jan 1993 – Sep 2001 |
| Angelina Lumber Co. G-6-223775 | Palmer Petroleum Inc. only | Redland, NE (Travis Peak) | Angelina | 1 | 8.65K | 879K | Dec 2006 – Aug 2023 |
| Walter Company O-3-13182 | Miocene Oil & Gas, Ltd. only | China, SE (Nodosaria 2ND) | Jefferson | 3 | 8.63K | 19 | by Jan 1993 – Jun 1997 |
| Fina Conoco Fee G-4-135624 | Merit Energy Company only | Rincon (Vicksburg Cons.) | Starr | 1 | 8.6K | 215K | by Jan 1993 – Jan 2006 |
| Broussard-Hebert G-3-212147 | Square Mile Energy, L.L.C. only | La Belle (Marginulina 8500) | Jefferson | 1 | 8.58K | 664K | Jun 2005 – May 2007 |
| Wilkinson O-2-9308 | Terrafina Energy, LLC only | Berclair, E. (Vicksburg) | Goliad | 3 | 8.5K | 2.7K | Mar 2009 – Jul 2026 |
| Pawelek O-1-13460 | First Rock, Inc. only | Marcelina Creek (Buda) | Wilson | 2 | 8.48K | 2.26K | by Jan 1993 – Apr 2000 |
| Middleton, A. D. a/C # 1 G-3-164296 | Rising Star Energy Partners II, only | Anahuac, W. (Marginulina "A") | Chambers | 1 | 8.46K | 2.67M | Jul 1997 – May 2021 |
| State Tract 169 O-4-12973 | Totalfinaelf E&P USA Inc only | Bird Island | Kleberg | 1 | 8.45K | 8.54K | Nov 2000 – Sep 2001 |
| Nina Sue G-13-274508 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Cooke | 1 | 8.45K | 127K | Jun 2009 – Aug 2026 |
| Pharr Fieldwide Unit G-4-167302 | Totalfinaelf E&P USA Inc only | Pharr (Bond) | Hidalgo | 1 | 8.43K | 1.09M | Feb 1997 – Nov 2002 |
| Fee O-1-12185 | First Rock, Inc. only | Marcelina Creek (Buda) | Wilson | 3 | 8.43K | 2.45K | by Jan 1993 – Feb 1997 |
| Schiffers Ranch O-1-13375 | Pedeco, Inc. only | Marcelina Creek (Austin Chalk) | Wilson | 2 | 8.42K | 1.88K | Oct 1997 – Jun 1999 |
| Irwin O-1-6441 | Longshot Energy LLC only | Taylor-Ina | Medina | 10 | 8.41K | 21 | by Jan 1993 – Jul 2026 |
| Prosper Labus O-1-13643 | Pedeco, Inc. only | Marcelina Creek (Austin Chalk) | Wilson | 2 | 8.38K | 151 | by Jan 1993 – Aug 1998 |
| Neuman, Clara T. O-1-1900 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 5 | 8.37K | 45 | by Jan 1993 – Aug 2026 |
| Theiss et al Gas Unit G-4-122093 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 8.35K | 389K | by Jan 1993 – Aug 2026 |
| Petty, O.S. G-1-138735 | White Oak Operating Company LLC only | Catarina, SW (San Miguel,oil) | Webb | 1 | 8.34K | 399K | Dec 1993 – Feb 2016 |
| Cardinals Gas Unit G-6-226566 | Adamas Energy LLC only | Martinsville (Travis Peak) | Nacogdoches | 1 | 8.31K | 337K | Jan 2007 – Sep 2022 |
| Schneider, Helen O-1-12025 | Texas, Les & Co. only | Marcelina Creek (Austin Chalk) | Wilson | 2 | 8.3K | 404 | Jul 1994 – Aug 2012 |
| West McAllen G-4-155005 | Fina Oil & Chemical Company only | McAllen, West (Card) | Hidalgo | 1 | 8.28K | 1.92M | Dec 1994 – May 1996 |
| Emina O-5-4040 | Obax Oil and Gas LLC only | Ici (Georgetown) | Robertson | 1 | 8.22K | 0 | Aug 2013 – Jul 2026 |
| Renn, Philip et Al G-3-140389 | Apache Corporation only | Danbury, SW. (Anomalina D) | Brazoria | 1 | 8.2K | 1.2M | by Jan 1993 – Dec 1997 |
| Salinas, Fausto et Al G-4-190003 | Smith Production Inc. only | Samano (Massive 7200) | Starr | 1 | 8.2K | 1.44M | May 2002 – Mar 2008 |
| Pharr Fieldwide Unit G-4-157409 | Totalfinaelf E&P USA Inc only | McAllen (Hansen) | Hidalgo | 1 | 8.15K | 1.01M | Sep 1995 – Dec 2001 |
| Petty Ranch G-1-208501 | White Oak Operating Company LLC only | Catarina, SW. (San Miguel-Gas) | Webb | 1 | 8.15K | 320K | Mar 2005 – Feb 2016 |
| Scarpinato, B. O-3-18139 | Howell Petroleum Corporation only | Kurten (Buda) | Brazos | 1 | 8.12K | 5.25K | by Jan 1993 – Oct 1995 |
| Ramirez, Julian R., Est. O-4-7076 | Finaly Resources LLC only | Edlasater, W. (Manila) | Zapata | 1 | 8.12K | 32 | by Jan 1993 – Sep 2003 |
| Fohn, E. L. -A- O-1-1725 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 11 | 8.07K | 19 | by Jan 1993 – Aug 2026 |
| Lawless G-6-147300 | Fina Oil & Chemical Company only | Bethany, East (Cotton Valley) | Panola | 1 | 8.06K | 303K | May 1993 – Apr 1997 |
| McAllen Fieldwide Unit G-4-176575 | Totalfinaelf E&P USA Inc only | McAllen (Bond) | Hidalgo | 1 | 8.03K | 665K | Jun 1999 – Jan 2001 |
| Brainard "111" G-14-181742 | Mewbourne Oil Company only | Canadian, West (Morrow Upper) | Hemphill | 1 | 8K | 2.49M | Feb 2001 – Aug 2026 |
| Hairrell, Gladys O-1-5830 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 6 | 8K | 21 | by Jan 1993 – Aug 2026 |
| King Ranch Tijerina G-4-275301 | EOG Resources, Inc. only | T-C-B (Vxbg Consolidated) | Kleberg | 1 | 7.95K | 199K | May 2014 – Jun 2017 |
| Bailey, James O-1-1718 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 7 | 7.93K | 21 | by Jan 1993 – Aug 2026 |
| McAllen, A. A. G-4-101373 | Fina Oil & Chemical Company only | McAllen Ranch(vicksburg-U-V-,se) | Hidalgo | 1 | 7.86K | 874K | by Jan 1993 – Oct 1994 |
| Godden, C.C. O-1-6769 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 8 | 7.84K | 21 | by Jan 1993 – Aug 2026 |
| State Tract 49 G-4-151789 | White Marlin Operating Co, LLC only | Encinal Channel (FB-C, M-4) | Nueces | 1 | 7.83K | 939K | Oct 1994 – Oct 2006 |
| Biela O-1-10329 | First Rock, Inc. only | Marcelina Creek (Buda) | Wilson | 2 | 7.79K | 2.18K | by Jan 1993 – Aug 1996 |
| Brainard Esf 5 G-14-167855 | Latigo Petroleum, LLC only | Hansford (Morrow, Upper) | Roberts | 1 | 7.77K | 2.76M | Nov 1997 – Aug 2026 |
| Bailey, James & Regina O-1-7061 | CVS Production, LLC. only | Taylor-Ina | Medina | 3 | 7.7K | 21 | by Jan 1993 – Dec 2017 |
| Hopkins, M. A. Gas Unit G-4-267002 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 7.68K | 578K | Mar 2012 – Aug 2026 |
| Briscoe Cochina West Ranch G-1-272463 | Anadarko E&P Onshore LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 7.67K | 5.57K | Oct 2014 – Oct 2014 |
| Fina-Conoco Fee O-4-12963 | Merit Energy Company only | Dee Davenport (3700) | Starr | 1 | 7.66K | 8.27K | Jun 2000 – Jul 2001 |