| Brainard, E. S. F. G-14-167775 | Latigo Petroleum, LLC only | Hansford (Morrow, Upper) | Roberts | 1 | 7.62K | 2.81M | Sep 1997 – Aug 2026 |
| TSL M-098041 / TR 52 G-4-282671 | White Marlin Operating Co, LLC only | Encinal Channel(fb-A,l-5A) | Nueces | 1 | 7.6K | 604K | Aug 2017 – Apr 2020 |
| Brann, Regina G-4-274842 | Merit Energy Company only | Jeffress, E. (Vicksburg K) | Hidalgo | 1 | 7.56K | 1.42M | Jun 2014 – Aug 2026 |
| Walter Co. G-3-163935 | Ballard Exploration Company,inc. only | China (Yegua EY) | Jefferson | 1 | 7.56K | 98.8K | Apr 1997 – Jul 1997 |
| Petty Ranch G-1-163106 | White Oak Operating Company LLC only | Catarina, SW. (San Miguel-Gas) | Webb | 1 | 7.55K | 523K | May 1997 – Feb 2016 |
| Lyssy-Deering O-1-21183 | Chandler Oil & Gas, LLC only | Marcelina Creek (Austin Chalk) | Wilson | 1 | 7.54K | 0 | Jun 2018 – Apr 2025 |
| De Tijerina, H.C. G-4-127455 | Remora Operating, LLC only | Seeligson (Consolidated) | Jim Wells | 1 | 7.53K | 1.18M | by Jan 1993 – Aug 2026 |
| Briscoe "A" G-1-191886 | SM Energy Company only | Catarina, SW. (Olmos N-3 Stray) | Webb | 1 | 7.51K | 310K | Oct 2002 – May 2014 |
| Richard, Martelle et al Unit 1 O-3-10963 | S & S Operating Company, Inc. only | China, SW. (7850) | Jefferson | 2 | 7.45K | 18 | by Jan 1993 – Jun 1994 |
| Fina-Conoco Fee G-4-133179 | Fina Oil & Chemical Company only | Frost, West (VX-Wood) | Starr | 1 | 7.45K | 648K | by Jan 1993 – May 1998 |
| Fohn, Edward Unit II O-1-6432 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 10 | 7.39K | 21 | by Jan 1993 – Aug 2026 |
| King Ranch Tijerina O-4-9874 | Exxon Corp. only | Seeligson (Zone 21-a, E) | Kleberg | 2 | 7.38K | 25.8K | by Jan 1993 – Dec 1994 |
| Petty, O. S. G-1-114262 | White Oak Operating Company LLC only | Catarina, SW. (San Miguel-Gas) | Webb | 1 | 7.38K | 248K | by Jan 1993 – Feb 2016 |
| Salinas, Fausto et Al G-4-198855 | Thorp Petroleum Corporation only | Samano (Massive 7200) | Starr | 1 | 7.35K | 293K | Nov 2001 – Nov 2002 |
| Gates 'N' TR4 G-1-289440 | Lewis Petro Properties, Inc. only | Catarina, SW. (San Miguel-Gas) | Webb | 1 | 7.35K | 164K | Nov 2018 – Dec 2018 |
| Urschel, C.F. G-4-135541 | Fina Oil & Chemical Company only | Urschel (Ashby FB II) | Starr | 1 | 7.35K | 457K | by Jan 1993 – Jul 1996 |
| Middleton Petroleum A O-1-14219 | Burnett Oil Co., Inc. only | Taylor-Ina | Medina | 48 | 7.17K | 0 | Oct 1998 – Aug 2026 |
| Moebius, F. O-1-1728 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 7 | 7.16K | 45 | by Jan 1993 – Aug 2026 |
| Winans, Andrew L. O-1-10792 | Petro Lions, LLC only | Somerset | Bexar | 9 | 7.15K | 18 | by Jan 1993 – Jan 2014 |
| Petty Ranch G-1-175200 | St. Mary Land & Exploration Co. only | Catarina, SW. (Olmos) | Webb | 1 | 7.12K | 562K | Nov 1999 – Jan 2007 |
| Kotara-Aldridge et al G U G-4-173434 | Zone Ridge Operating, LLC only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 7.1K | 474K | May 1999 – Oct 2024 |
| Pharr Fieldwide Unit G-4-136858 | Fina Oil & Chemical Company only | McAllen (Hansen) | Hidalgo | 1 | 7.07K | 222K | by Jan 1993 – May 1999 |
| Al-Btlt #1 O-4-12602 | Santa Rita Holdings, LLC only | Javelina (Frio 5072) | Hidalgo | 1 | 7K | 0 | Aug 1996 – Mar 2007 |
| Salinas, Juan G-4-268950 | Lewis Petro Properties, Inc. only | Owen (Olmos) | Webb | 1 | 6.95K | 1.43M | Oct 2011 – Aug 2026 |
| Ruddock Vaccinating Services O-1-6356 | Bommer Engineering Co. only | Pilgrim (Austin Chalk) | Gonzales | 1 | 6.93K | 6.54K | by Jan 1993 – Oct 1997 |
| De Tijerina, H. C. O-4-13717 | Remora Operating, LLC only | T.-C.-B. (Upper Frio Cons.) | Jim Wells | 1 | 6.93K | 6.26K | Mar 2012 – Dec 2017 |
| Harrelson G-14-76441 | Finaly Resources LLC only | Follett (Morrow) | Lipscomb | 1 | 6.92K | 462K | by Jan 1993 – Aug 2016 |
| Fina Werner G-6-198377 | TGNR East Texas II LLC only | Carthage, North (Cotton Valley) | Panola | 1 | 6.91K | 1.38M | Oct 2003 – Aug 2026 |
| Carminati "A" O-13-32020 | Wise Production Company only | Engle (Conglomerate 2ND) | Montague | 1 | 6.89K | 0 | Jul 2011 – Apr 2024 |
| Neinast O-10-25863 | Edmar Company, L.L.C. only | Spraberry (Trend Area) | Midland | 1 | 6.88K | 47.6K | by Jan 1993 – Feb 1997 |
| Mitchell Estate O-2-880 | Trinidad Resources, LLC only | Lolita (Marginulina Zone) | Jackson | 4 | 6.8K | 1.4K | by Jan 1993 – Jul 2025 |
| Biry Trsct III O-1-10207 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 4 | 6.78K | 20 | by Jan 1993 – Aug 2023 |
| Fina-Conoco Fee G-4-162540 | Merit Energy Company only | Rincon (Vicksburg Cons.) | Starr | 1 | 6.76K | 514K | Feb 1997 – Sep 2005 |
| Schmidt, J.D. Unit I O-1-6701 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 2 | 6.75K | 21 | by Jan 1993 – Aug 2026 |
| Cockburn, H. C. G-3-225118 | Orx Resources, L.L.C. only | Magnet Withers (Marginulina 2) | Wharton | 1 | 6.75K | 7.43K | Apr 2006 – Mar 2007 |
| Finally O-3-14930 | Lindow Oil & Gas, LLC only | Willard (Navarro) | Burleson | 1 | 6.74K | 28.8K | by Jan 1993 – Aug 2026 |
| Flores, Salinas O-4-9033 | Southern Tejas Asset Group LLC only | Sullivan City (4700) | Hidalgo | 1 | 6.74K | 1.96K | Oct 1995 – Jul 2026 |
| Fina Conoco Fee G-4-171650 | Merit Energy Company only | Frost (Frio 14) | Starr | 1 | 6.73K | 165K | Jun 1998 – Apr 2000 |
| PHS Gas Unit G-3-170775 | Wynn-Crosby Operating, Ltd. only | Tidehaven (2ND Anomalina) | Matagorda | 1 | 6.71K | 1.22M | May 1998 – Jan 2009 |
| Byrd 2-H O-1-12983 | Arriola Operating & Consltg Inc. only | Marcelina Creek (Austin Chalk) | Wilson | 1 | 6.67K | 2.12K | by Jan 1993 – May 2011 |
| Cardinal O-13-34373 | Trio Consulting & Management,llc only | Independence (Miss) | Hardeman | 1 | 6.67K | 0 | Jan 2025 – Aug 2026 |
| Whataburger O-1-14016 | Carrizo Exploration, Inc. only | Catarina | Dimmit | 1 | 6.63K | 39K | Jan 1996 – Jun 2001 |
| Rhodes, J.E. "S" O-1-6404 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 8 | 6.62K | 21 | by Jan 1993 – Aug 2026 |
| Lutenbacher, M. O-2-5391 | Terrafina Energy, LLC only | Berclair (2700 Frio) | Goliad | 1 | 6.6K | 1.09K | Feb 1993 – Jun 2021 |
| Kallina O-3-23156 | Sue-Ann Operating, L.C. only | Garwood, S.E. (Y-2) | Colorado | 1 | 6.58K | 4.01K | Nov 1996 – Feb 1998 |
| Marrs McLean Unit G-3-253427 | Magnum Producing, LP only | Big Hill (Marginulina) | Jefferson | 1 | 6.54K | 881K | Oct 2009 – Sep 2013 |
| Slick, T.B. Estate G-4-162709 | Fina Oil & Chemical Company only | Hinde (Frio Stray) | Starr | 1 | 6.53K | 85.6K | May 1996 – May 1999 |
| Fox, Zina GU 2 G-13-210520 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 6.51K | 1.98M | Jun 2005 – Jun 2026 |
| Petty, O. S. G-1-85935 | White Oak Operating Company LLC only | Catarina, SW. (San Miguel-Gas) | Webb | 1 | 6.5K | 311K | by Jan 1993 – Feb 2016 |
| Keirn, Pearl O-4-12644 | Fina Oil & Chemical Company only | McAllen (6900) | Hidalgo | 1 | 6.5K | 15K | Nov 1996 – Jun 1997 |