| Denali Apollo G-3-301535 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Washington | 1 | 324K | 1M | Oct 2024 – Aug 2026 |
| Denali Summit G-3-301530 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Washington | 1 | 266K | 1.07M | Oct 2024 – Aug 2026 |
| Denali Matrix G-3-301527 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Washington | 1 | 246K | 951K | Oct 2024 – Aug 2026 |
| Cardenas, R.R. G-4-117431 | Mountain V Texas, LLC only | Rincon (Vicksburg Cons.) | Starr | 1 | 233K | 7.16M | by Jan 1993 – Aug 2026 |
| Marchbanks-Cadena 'B' G-4-215828 | Crossroads Petroleum L.L.C. only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 168K | 1.54M | Oct 2005 – Jan 2023 |
| Cardenas, R. R. G-4-142827 | Oryx Energy Company only | Frost (Vicksburg Mass.) | Starr | 1 | 55.6K | 2.87M | by Jan 1993 – Mar 1996 |
| Laplaya Mid Frio Unit G-4-207584 | Modena Operating LLC only | Dunn-McCampbell (Frio, Mid) | Kleberg | 1 | 47.9K | 4.77M | Oct 2004 – Nov 2009 |
| Marchbanks-Cadena Gas Unit #1 G-4-215945 | Crossroads Petroleum L.L.C. only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 41.9K | 605K | Jan 2006 – Nov 2021 |
| Marchbanks-Cadena G-4-210976 | Green Exploration Company only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 23.2K | 468K | May 2005 – Nov 2016 |
| Modena Burnett G-13-256068 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 14.1K | 2.39M | Mar 2010 – Aug 2026 |
| Marchbanks-Cadena Gas Unit #1 G-4-212935 | Green Exploration Company only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 13.8K | 969K | Jul 2005 – Sep 2017 |
| Laplaya Mid Frio Unit G-4-236279 | Modena Operating LLC only | Dunn-McCampbell (Frio, Mid) | Kleberg | 1 | 12.7K | 1.68M | Sep 2007 – Nov 2009 |
| Marchbanks Cadena et Al G-4-233158 | Green Exploration Company only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 11.9K | 257K | Nov 2007 – Jul 2016 |
| Modena Burnett G-13-259601 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 11.8K | 2.65M | Nov 2010 – Aug 2026 |
| Marchbanks-Cadena G-4-205938 | Green Exploration Company only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 11K | 398K | Nov 2004 – Sep 2017 |
| Cardenas, R. R. G-4-217423 | Mountain V Texas, LLC only | Rincon (Vicksburg Cons.) | Starr | 1 | 10.7K | 232K | Jan 2006 – Jul 2014 |
| Cardenas, R. R. G-4-162542 | Oryx Energy Company only | Frost, North (Vicksburg 7100) | Starr | 1 | 10.6K | 118K | Mar 1997 – Apr 1998 |
| South Sprint State Gas Unit # 2 G-4-53640 | Modena Operating LLC only | Sprint, S. (Frio A) | Mustang IS-SB | 1 | 8.44K | 7.91M | by Jan 1993 – Mar 2011 |
| Jackson State 190 Unit G-3-224317 | Denali Oil & Gas Management, LLC only | Robinson Lake (Frio 10,400 UP) | Chambers | 1 | 6.77K | 201K | Nov 2006 – Dec 2008 |
| Cardenas, R.R. G-4-126691 | Mountain V Texas, LLC only | Rincon (Vicksburg Cons.) | Starr | 1 | 6.21K | 652K | by Jan 1993 – Sep 2002 |
| Cardenas, R. R. G-4-217412 | Mountain V Texas, LLC only | Rincon (Vicksburg Cons.) | Starr | 1 | 5.07K | 702K | Dec 2005 – Jun 2025 |
| Cardenas, R.R. G-4-220128 | Mountain V Texas, LLC only | Rincon (Vicksburg Cons.) | Starr | 1 | 4.99K | 728K | May 2006 – May 2017 |
| Hahn Estate G-3-227324 | Denali Oil & Gas Management, LLC only | Hardeman Slough | Matagorda | 1 | 4.45K | 819K | Mar 2007 – Jul 2010 |
| Modena Burnett G-13-259600 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 4.25K | 576K | Nov 2010 – Apr 2018 |
| Dunn-Peach (St 212) G-4-234917 | Modena Operating LLC only | Murdock Pass, N. (Frio 8100 B) | Kleberg | 1 | 3.84K | 1.84M | Feb 2006 – Jan 2010 |
| Cardenas, Josefa G-4-33078 | Lucky Lad Energy, LLC only | San Salvador (Consolidated Frio) | Hidalgo | 1 | 3.42K | 572K | by Jan 1993 – May 2021 |
| South Sprint State Gas Unit #1 G-4-46021 | Modena Operating LLC only | Sprint, S. (Frio A) | Kleberg | 1 | 2.25K | 4.63M | by Jan 1993 – Mar 2011 |
| Marchbanks-Cadena G-4-216852 | Green Exploration Company only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 1.92K | 139K | Feb 2006 – Nov 2008 |
| Alta-Fitzsimmons Unit G-4-210555 | Tepee Petroleum Co., Inc. only | Cadena (Pettus 4720) | Duval | 1 | 1.86K | 247K | Jun 2005 – Mar 2007 |
| Cardenas, Josefa G-4-138788 | Tesoro E&P Company, L.P. only | San Salvador (Consolidated Frio) | Hidalgo | 1 | 1.8K | 605K | by Jan 1993 – Dec 1997 |
| Cage Ranch 656 G-4-255386 | Denali Oil & Gas Management, LLC only | Cage Ranch (Myrick Consolidated) | Brooks | 1 | 1.79K | 114K | Feb 2010 – Jun 2010 |
| Garcia, Genaro G-4-194977 | B.P. Productions Inc. only | Cadena (Yegua 5700) | Duval | 1 | 1.67K | 124K | Apr 2003 – Mar 2025 |
| Dunn-Peach G-4-244571 | Modena Operating LLC only | Dunn-McCampbell (Frio, Mid) | Kleberg | 1 | 1.58K | 2.67M | Aug 2007 – Feb 2012 |
| Callaghan Ranch G-4-173909 | Denali Oil & Gas Management, LLC only | Finley-Webb (5100) | Webb | 1 | 1.45K | 215K | Jul 1999 – Mar 2005 |
| Cuellar G-4-213307 | Apex Energy, Inc. only | Cadena (Hockley 3) | Duval | 1 | 1.34K | 142K | Nov 2003 – Jan 2006 |
| Cardenas, R. R. G-4-220927 | Mountain V Texas, LLC only | Rincon (Vicksburg Cons.) | Starr | 1 | 1.3K | 81.8K | Jun 2006 – Nov 2013 |
| Cardenas, Josefa G-4-139041 | Rincon Petroleum Corporation only | San Salvador (Consolidated Frio) | Hidalgo | 1 | 1.19K | 328K | by Jan 1993 – Dec 1997 |
| McCampbell, Dunn G-4-241554 | Modena Operating LLC only | Dunn-McCampbell (8425) | Kleberg | 1 | 1.1K | 592K | May 2008 – Mar 2011 |
| Cardenas, R.R. G-4-120599 | Oryx Energy Company only | Frost (Vicksburg Mass.) | Starr | 1 | 1.05K | 93.8K | by Jan 1993 – Jan 1994 |
| Cadena G-4-124484 | Stacha, Eddy A. only | Caro Creek (Yegua 15) | Jim Wells | 1 | 826 | 67.4K | by Jan 1993 – May 2007 |
| Ceniza-Garcia G-4-137290 | Brayton Oil Corp. only | Cadena (Hockley 3) | Duval | 1 | 768 | 109K | by Jan 1993 – Nov 1993 |
| Cardenas G-4-142556 | Texas Independent Explor., Inc. only | San Salvador (Consolidated Frio) | Hidalgo | 1 | 667 | 116K | by Jan 1993 – May 1997 |
| St 938-S G-4-254422 | Modena Operating LLC only | Wildcat | Kleberg | 1 | 608 | 174K | Jun 2008 – Dec 2008 |
| Cardenas, J. -A- G-4-131761 | Rincon Petroleum Corporation only | San Salvador (Consolidated Frio) | Hidalgo | 1 | 602 | 57.9K | by Jan 1993 – Feb 1996 |
| Cardenas, R.R. G-4-124829 | Kerr-McGee Oil & Gas Onshore LP only | Frost (Vicksburg Mass.) | Starr | 1 | 581 | 32K | by Jan 1993 – Jan 1995 |
| Dunn-Peach G-4-209726 | Modena Operating LLC only | Murdock Pass, N. (Frio 8100 B) | Kleberg | 1 | 511 | 1.25M | Mar 2005 – May 2007 |
| Cardenas, A.M. G-4-131541 | Southwest Oil & Land, Inc. only | San Salvador (6800) | Hidalgo | 1 | 467 | 67.4K | by Jan 1993 – Jul 1995 |
| McCampbell, Dunn, -A- G-4-45249 | Modena Operating LLC only | Murdock Pass, N.(marginulina) | Kleberg | 1 | 413 | 913K | by Jan 1993 – Feb 2013 |
| Dunn-Peach G-4-236288 | Modena Operating LLC only | Murdock Pass, N. (Frio 8100 B) | Kleberg | 1 | 395 | 1.28M | Nov 2005 – Dec 2008 |
| Marchbanks-Cadena Gas Unit #1 G-4-212934 | Magnum Producing, LP only | Atlee (4900) | Duval | 1 | 366 | 62.4K | Jul 2005 – Nov 2005 |