| J.C. Mann Gas Unit G-4-145065 | Dewbre Petroleum Corporation only | Cadre (Vicksburg Patriot) | Hidalgo | 1 | 420K | 24.7M | Apr 1993 – Aug 2026 |
| Guerra, E.E. "A" G-4-121568 | Dewbre Petroleum Corporation only | McAllen Ranch (Guerra) | Hidalgo | 1 | 295K | 18.6M | by Jan 1993 – Aug 2026 |
| Lowry-Hill O-4-13736 | Dewbre Petroleum Corporation only | Bishop, West (King) | Nueces | 2 | 183K | 81.9K | Aug 2012 – Aug 2026 |
| Gordon Heirs O-2-9119 | Dewbre Petroleum Corporation only | Borchers, North (8050) | Lavaca | 1 | 178K | 46.2K | Jan 2007 – Aug 2026 |
| Guerra, E. E. G-4-138214 | Dewbre Petroleum Corporation only | McAllen Ranch (Guerra) | Hidalgo | 1 | 155K | 9.7M | by Jan 1993 – Feb 2004 |
| Peeler Ranch O-1-15472 | Dewbre Petroleum Corporation only | Eagleville (Eagle Ford-1) | Atascosa | 2 | 141K | 38.1K | Mar 2011 – Aug 2026 |
| Thomas Oil Unit O-4-13963 | Dewbre Petroleum Corporation only | Riggan (F-8) | Willacy | 1 | 140K | 77.4K | Jun 2014 – Aug 2026 |
| J.C. Mann Gas Unit G-4-146858 | Dewbre Petroleum Corporation only | Cadre (Vicksburg Patriot) | Hidalgo | 1 | 132K | 11.9M | Sep 1993 – Aug 2026 |
| Jerico, Ltd. Gas Unit G-4-144942 | Dewbre Petroleum Corporation only | Cadre (Vicksburg Patriot) | Hidalgo | 1 | 131K | 7.93M | by Jan 1993 – Dec 2009 |
| Anna Mae Oil Unit O-4-12344 | Dewbre Petroleum Corporation only | Shepherd (5300) | Hidalgo | 1 | 111K | 3.81K | May 1994 – Apr 2002 |
| Duffy -A- O-3-9638 | Dewbre Petroleum Corporation only | Duffy, South (6980) | Wharton | 1 | 110K | 72 | by Jan 1993 – Aug 2026 |
| Ames G.U. G-4-220917 | Dewbre Petroleum Corporation only | Chile Vieja (Frio) | Willacy | 1 | 104K | 6.06M | Jul 2006 – Aug 2026 |
| Jerico Ltd.gas Unit G-4-175691 | Dewbre Petroleum Corporation only | Cadre (Vicksburg Patriot) | Hidalgo | 1 | 103K | 4.92M | Dec 1999 – Aug 2026 |
| Ames et al GU G-4-222562 | Dewbre Petroleum Corporation only | Chile Vieja (Frio) | Willacy | 1 | 98.3K | 5.79M | Sep 2006 – Aug 2026 |
| Garcia, J.A. et Al O-4-12493 | Dewbre Petroleum Corporation only | Bloomberg (Patty) | Hidalgo | 3 | 93.6K | 176K | Aug 1995 – Aug 2026 |
| Flinn, F.E. O-4-11325 | Dewbre Petroleum Corporation only | Clara Driscoll, S. (5040) | Nueces | 2 | 86.3K | 21 | by Jan 1993 – Jun 2014 |
| Klimitchek O-2-9178 | Dewbre Petroleum Corporation only | Borchers, North (8050) | Lavaca | 1 | 85.8K | 28K | Jan 2008 – Sep 2020 |
| Stewart G-4-156253 | Dewbre Petroleum Corporation only | Santa Rosa (10,700) | Kenedy | 1 | 82.1K | 7.32M | Nov 1995 – Aug 2026 |
| Palo Blanco Gas Unit G-4-233101 | Dewbre Petroleum Corporation only | W. E. Colson (Vx. Bingo) | Brooks | 1 | 81.3K | 1.6M | Nov 2007 – Aug 2026 |
| Jerico Ltd Gas Unit G-4-217454 | Dewbre Petroleum Corporation only | Cadre (Vicksburg Patriot) | Hidalgo | 1 | 78.3K | 4.43M | Mar 2006 – Aug 2026 |
| Jerico Ltd Gas Unit G-4-196646 | Dewbre Petroleum Corporation only | Cadre (Vicksburg Patriot) | Hidalgo | 1 | 77.1K | 4.2M | Aug 2003 – Aug 2026 |
| Obrien,j.m.,-A- East 101 Ac. 6 O-2-3992 | Dewbre Petroleum Corporation only | Greta (4400) | Refugio | 4 | 76.5K | 46.6K | by Jan 1993 – Aug 2026 |
| Jerico Ltd. Gas Unit G-4-212867 | Dewbre Petroleum Corporation only | Cadre (Vicksburg Patriot) | Hidalgo | 1 | 73K | 3.29M | Sep 2005 – Aug 2026 |
| Gueera Gas Unit O-4-13522 | Dewbre Petroleum Corporation only | Arrowhead (Alh Sand) | Hidalgo | 1 | 70.8K | 0 | Sep 2008 – Apr 2021 |
| Kerr et al GU G-4-247130 | Dewbre Petroleum Corporation only | La Sal Vieja (Deep) | Willacy | 1 | 70.6K | 1.65M | Jan 2009 – Aug 2026 |
| Guerra Gas Unit (SCH) G-4-212381 | Dewbre Petroleum Corporation only | Arrowhead (Alh Sand) | Hidalgo | 1 | 69.4K | 408K | Sep 2005 – Aug 2008 |
| Dewbre, Walter O-13-28640 | Eagleridge Operating, LLC only | Morris (Consolidated Congl.) | Wise | 3 | 68.4K | 164K | May 1993 – Oct 2018 |
| Lefner et al GU G-4-230701 | Dewbre Petroleum Corporation only | Chile Vieja (Frio) | Willacy | 1 | 68.2K | 3.47M | Sep 2007 – Aug 2022 |
| Lefner et al GU G-4-233177 | Dewbre Petroleum Corporation only | Chile Vieja (Frio) | Willacy | 1 | 67K | 3.8M | Nov 2007 – Apr 2020 |
| Bentsen Bros O-4-163 | Dewbre Petroleum Corporation only | Arrowhead | Hidalgo | 3 | 64K | 21.7K | Jul 2005 – Aug 2026 |
| Duval Ranch, Sec. #100, a/C 2 O-4-2112 | Dewbre, Jerry C., Trustee only | Piedre Lumbre | Duval | 6 | 57.2K | 21 | by Jan 1993 – Mar 2015 |
| Guerra, E.E. Jr G-4-122046 | Dewbre Petroleum Corporation only | McAllen Ranch (Guerra) | Hidalgo | 1 | 55.8K | 6.16M | by Jan 1993 – Mar 2015 |
| Drawe, W. H. O-4-10288 | Dewbre Petroleum Corporation only | Capisallo (8600) | Hidalgo | 1 | 53.3K | 3.35K | by Jan 1993 – Aug 2026 |
| Lefner et al Gas Unit G-4-238507 | Dewbre Petroleum Corporation only | Chile Vieja (Frio) | Willacy | 1 | 53.1K | 2.9M | Apr 2008 – Aug 2026 |
| Duval State Section 64 O-4-2876 | Dewbre, Jerry C., Trustee only | Seventy-Six, West | Duval | 4 | 52.9K | 21 | by Jan 1993 – Nov 2018 |
| Simons G-4-192519 | Dewbre Petroleum Corporation only | Midway, South (Consolidated) | San Patricio | 1 | 52.6K | 990K | Oct 2002 – Apr 2017 |
| J. C. Mann Gas Unit G-4-191413 | Dewbre Petroleum Corporation only | Cadre (Vicksburg Patriot) | Hidalgo | 1 | 52.4K | 2.75M | Feb 2003 – Dec 2007 |
| Crites, Eda O-4-9694 | Dewbre Petroleum Corporation only | Midway, S. (Dubose) | San Patricio | 1 | 43.9K | 202K | by Jan 1993 – Jul 2021 |
| Guerra "a" Gas Unit G-4-126509 | Dewbre Petroleum Corporation only | McAllen Ranch (Guerra) | Hidalgo | 1 | 42.7K | 3.24M | by Jan 1993 – Aug 2001 |
| Palo Blanco Gas Unit G-4-230861 | Dewbre Petroleum Corporation only | W. E. Colson (Vx. Bingo) | Brooks | 1 | 42.5K | 433K | May 2007 – Dec 2016 |
| Thomson-Barrow O-2-8790 | Dewbre Petroleum Corporation only | Massingill, W. (Chamberlain) | Bee | 1 | 42K | 0 | May 2003 – Aug 2013 |
| Beaurline G-4-218823 | Dewbre Petroleum Corporation only | McAllen Ranch (Vksbg W-Y) | Hidalgo | 1 | 41.5K | 1.64M | Mar 2006 – Aug 2026 |
| Peeler Ranch B O-1-17494 | Dewbre Petroleum Corporation only | Eagleville (Eagle Ford-1) | Atascosa | 1 | 39.2K | 810 | Apr 2014 – Aug 2026 |
| Schonefeld -B- O-4-5987 | Dewbre Petroleum Corporation only | May (5 Sand, Middle) | Kleberg | 1 | 38.7K | 99.2K | by Jan 1993 – May 2002 |
| Rives O-2-7221 | Dewbre Petroleum Corporation only | Person (Edwards) | Karnes | 1 | 38.5K | 34.8K | by Jan 1993 – Jan 2002 |
| Palo Blanco Gas Unit G-4-226381 | Dewbre Petroleum Corporation only | W. E. Colson (Vx. Bingo) | Brooks | 1 | 37.7K | 1.59M | Mar 2007 – Aug 2026 |
| Guerra, E. E. G-4-139523 | Dewbre Petroleum Corporation only | McAllen Ranch (Guerra) | Hidalgo | 1 | 37.4K | 5.12M | by Jan 1993 – Mar 2019 |
| Dorotik G-3-150118 | Dewbre Petroleum Corporation only | New Taiton (Meek) | Wharton | 1 | 36.2K | 1.22M | Mar 1994 – Mar 2001 |
| Henderson, J.W. et al Gas Unit G-4-237330 | Dewbre Petroleum Corporation only | La Sal Vieja (Frio L) | Willacy | 1 | 35.1K | 3.78M | Mar 2008 – Aug 2026 |
| Guerra, E.E. G-4-249521 | Dewbre Petroleum Corporation only | McAllen Ranch (Guerra) | Hidalgo | 1 | 34.5K | 4.52M | Apr 2009 – Apr 2026 |