| Gates Ranch B G-1-139168 | White Oak Operating Company LLC only | Catarina, SW. (Olmos N-3 Stray) | Webb | 1 | 6.49K | 249K | by Jan 1993 – Oct 2012 |
| Alta - Kenedy Foundation G-4-199593 | Tepee Petroleum Co., Inc. only | Marrina (Queen City) | Jim Hogg | 1 | 6.45K | 142K | Jan 2004 – Jan 2009 |
| Wilson 'P' Unit 3 O-1-20329 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 6 | 6.45K | 0 | Oct 2019 – Aug 2026 |
| McAllen Fwu G-4-148710 | Totalfinaelf E&P USA Inc only | McAllen (Jackson 6200) | Hidalgo | 1 | 6.43K | 416K | Jun 1993 – Sep 2002 |
| McAllen Fieldwide Unit G-4-55187 | Fina Oil & Chemical Company only | McAllen (Marks) | Hidalgo | 1 | 6.43K | 408K | by Jan 1993 – May 1997 |
| Sustainable Forrest, LLC O-6-14695 | Buckhorn Operating LLC only | Angie,(pettet) | Shelby | 3 | 6.34K | 51.8K | Jan 2007 – Aug 2017 |
| Crawford 161 G-3-152008 | Aspect Resources LLC only | Angelina (13,650 Uvigerina) | Jefferson | 1 | 6.33K | 206K | Sep 1994 – Jul 1999 |
| Fina Conoco Fee G-4-135059 | Merit Energy Company only | Frost, North (Ashby) | Starr | 1 | 6.31K | 461K | by Jan 1993 – Jun 2006 |
| Volz, Fred W., Sr., Unit G-4-14553 | Fina Oil & Chemical Company only | Tabasco (8500) | Hidalgo | 1 | 6.28K | 255K | by Jan 1993 – Aug 1998 |
| Riethmeyer, E. Gas Unit G-4-247418 | STX Operating Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 6.27K | 1.67M | Jan 2009 – Aug 2026 |
| Btlt G-4-248688 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Starr | 1 | 6.25K | 238K | Apr 2009 – Aug 2026 |
| McAllen Fieldwide Unit G-4-177916 | Totalfinaelf E&P USA Inc only | McAllen (Hackney Lake North) | Hidalgo | 1 | 6.24K | 281K | Mar 2000 – Dec 2001 |
| Briscoe -A- G-1-80115 | SM Energy Company only | Catarina, SW. (San Miguel-Gas) | Webb | 1 | 6.19K | 195K | by Jan 1993 – May 2014 |
| Salinas G-4-187692 | Thorp Petroleum Corporation only | Samano (Massive 7200) | Starr | 1 | 6.17K | 281K | Jan 2002 – Oct 2003 |
| Frost Bank G-4-221497 | Finaly Resources LLC only | Lopez, SE. (Consolidated) | Duval | 1 | 6.15K | 201K | May 2006 – May 2020 |
| King Ranch Tijerina G-4-260448 | EOG Resources, Inc. only | T-C-B (Vxbg Consolidated) | Kleberg | 1 | 6.13K | 1.5M | Oct 2010 – Jun 2016 |
| Bell G-4-181505 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 6.12K | 994K | Sep 2000 – Jun 2026 |
| Carminati-Crenshaw O-13-19017 | McCommons Oil Company only | Engle (Strawn) | Montague | 1 | 6.11K | 1.05K | by Jan 1993 – Aug 2016 |
| Walton, S.L. O-1-5770 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 4 | 6.09K | 21 | by Jan 1993 – Aug 2026 |
| Curlee-Griffith Unit O-2-4667 | Javelina Oil & Gas Development only | Berkow (Kohler) | Bee | 1 | 6.07K | 2.05K | by Jan 1993 – May 2001 |
| Wiesehan-Walker Gas Unit G-4-243887 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 6.05K | 459K | Oct 2008 – Aug 2026 |
| Piloncillo G-1-271873 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Webb | 1 | 6.04K | 82.6K | Sep 2013 – Oct 2018 |
| Whataburger O-1-13816 | Thalmann, David Vac Service Inc only | Catarina, E. (Olmos A) | Dimmit | 1 | 6K | 76.9K | Oct 1993 – Oct 1999 |
| Gates Ranch "B" G-1-166050 | Kerns O & G, Inc. only | Catarina, SW. (Olmos N-3 Stray) | Webb | 1 | 5.98K | 45.4K | Dec 1997 – Mar 2001 |
| West Ranch State Oil & Gas Unit O-2-7729 | Hilcorp Energy Company only | West Ranch, South (Marginulina) | Jackson | 2 | 5.98K | 101K | by Jan 1993 – Oct 1994 |
| Salinas, G. G. G-4-229337 | Hilcorp Energy Company only | Roleta (Wilcox Consolidated) | Zapata | 1 | 5.97K | 988K | Jul 2007 – Aug 2026 |
| Mullinax O-13-20920 | Wise Production Company only | Jack County Regular | Jack | 4 | 5.97K | 248K | by Jan 1993 – Apr 2009 |
| Cardinals Gas Unit G-6-235667 | Adamas Energy LLC only | Martinsville (Travis Peak) | Nacogdoches | 1 | 5.96K | 1.96M | Dec 2007 – Aug 2026 |
| Brainard, E. S. F. G-14-160824 | Complete Oil & Gas Services, LLC only | Hansford (Morrow, Lower) | Roberts | 1 | 5.87K | 1.34M | Oct 1996 – Jan 2023 |
| St 49 Permanent Unit G-4-280989 | White Marlin Operating Co, LLC only | Encinal Channel (FB-a, K-8) | Nueces | 1 | 5.85K | 471K | Aug 2016 – Jul 2022 |
| Winans, A. L. Unit O-13-19162 | Sabre Operating, Inc. only | Alvord, South (Atoka) | Wise | 1 | 5.82K | 215K | by Jan 1993 – Aug 2019 |
| Labus, Prosper O-1-14249 | First Rock, Inc. only | Marcelina Creek (Buda) | Wilson | 1 | 5.8K | 2.56K | Feb 1999 – Dec 2015 |
| Schearrer O-1-13823 | First Rock, Inc. only | Marcelina Creek (Buda) | Atascosa | 1 | 5.79K | 1.5K | Nov 1993 – Sep 1995 |
| Salinas, Octavio Gas Unit G-4-75829 | Fran Investments, Inc. only | Laredo (Lobo) | Zapata | 1 | 5.79K | 1.58M | by Jan 1993 – Oct 2014 |
| Byrd Buda B O-1-18785 | Terrafina Energy, LLC only | Ammann (Buda) | Zavala | 1 | 5.79K | 0 | Mar 2016 – Aug 2020 |
| Salinas, G. G. G-4-224967 | Hilcorp Energy Company only | Roleta (Wilcox Consolidated) | Zapata | 1 | 5.78K | 778K | Jan 2007 – Aug 2026 |
| Davis, W. J. "A" G-4-267197 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 5.73K | 386K | Mar 2012 – Jun 2019 |
| Hightower, Irma Unit -A- G-6-59104 | Totalfinaelf E&P USA Inc only | Bethany, East (Cotton Valley) | Panola | 1 | 5.72K | 218K | by Jan 1993 – Feb 2002 |
| Tinajero O-13-33352 | Oakridge Oil and Gas, LP only | KRS (Marble Falls) | Jack | 1 | 5.72K | 37.6K | Jan 2015 – Jan 2019 |
| Petty, O. S. G-1-101584 | Kerns O & G, Inc. only | Catarina, SW. (San Miguel-Gas) | Webb | 1 | 5.7K | 113K | by Jan 1993 – Sep 2002 |
| Diamantina 40 G-4-170184 | Varas Energy Operating Company, only | Flores, W. (Perdido) | Zapata | 1 | 5.69K | 1.51M | Sep 1998 – Aug 2026 |
| Salinas, Fausto et Al G-4-204768 | Petrovybe Opco LLC only | Samano (2ND Rincon) | Starr | 1 | 5.69K | 268K | Dec 2002 – Aug 2026 |
| Briscoe Cochina West Ranch G-1-274739 | Anadarko E&P Onshore LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 5.66K | 1.8K | Aug 2014 – Oct 2014 |
| Yost O-13-25776 | Finaly Resources LLC only | Stricker (Tannehill) | Knox | 2 | 5.62K | 65 | by Jan 1993 – Oct 2014 |
| Brann, Regina G-4-274869 | Merit Energy Company only | Jeffress, E. (Vicksburg K) | Hidalgo | 1 | 5.61K | 971K | Jun 2014 – Aug 2026 |
| Petty Ranch G-1-201492 | White Oak Operating Company LLC only | Catarina, SW. (San Miguel-Gas) | Webb | 1 | 5.55K | 300K | May 2004 – Feb 2016 |
| Fina Conoco Fee G-4-151203 | Fina Oil & Chemical Company only | Frost,north (Rincon) | Starr | 1 | 5.55K | 222K | Aug 1994 – May 1998 |
| De Tijerina, H C G-4-91751 | Remora Operating, LLC only | T.-C.-B. (Upper Frio Cons.) | Jim Wells | 1 | 5.54K | 1.04M | by Jan 1993 – Aug 2026 |
| Biediger, Ferdinand O-1-14074 | Oilex Int'l Investments, Inc. only | Big Foot | Frio | 16 | 5.54K | 6.4K | Dec 1996 – Oct 1998 |
| Lawless Unit G-6-143517 | Fina Oil & Chemical Company only | Bethany, East (Cotton Valley) | Panola | 1 | 5.53K | 763K | by Jan 1993 – Apr 1999 |