| Banks Ranch Unit G-3-288648 | Geosouthern Operating II, LLC only | Giddings (Austin Chalk, Gas) | Fayette | 1 | 238K | 2.96M | Nov 2019 – Apr 2026 |
| Wilbanks G-3-230390 | Progenies Operating LLC only | Gum Island, N. (Hackberry 2) | Jefferson | 1 | 187K | 1.99M | Aug 2007 – Jan 2019 |
| 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 |
| Frost National Bank -A- G-4-224321 | Mountain V Texas, LLC only | Braulia, East (Vicksburg Cons.) | Starr | 1 | 77.8K | 3.31M | Oct 2006 – Apr 2026 |
| Groos National Bank G-4-41927 | Caribbean Energy LLC II only | Gregg Wood, S. (5350) | Starr | 1 | 52.4K | 4.55M | Jan 1993 – Mar 2026 |
| Frost Bank G-4-212586 | Finaly Resources LLC only | Lopez, SE. (Consolidated) | Duval | 1 | 45K | 2.2M | Aug 2005 – Apr 2026 |
| 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 |
| Frost National Bank -A- G-4-225228 | Mountain V Texas, LLC only | Braulia, East (Vicksburg Cons.) | Starr | 1 | 38.4K | 1.69M | Nov 2006 – Apr 2010 |
| Frost Bank G-4-211514 | Finaly Resources LLC only | Lopez, SE. (Consolidated) | Duval | 1 | 36.9K | 2.74M | Jul 2005 – Apr 2026 |
| Fort Worth Natl. Bank Gas Unit G-2-66437 | Blackbrush O & G, LLC only | Buchel (Edwards) | De Witt | 1 | 33.4K | 6.18M | Jan 1993 – Aug 2022 |
| Frost National Bank 65 G-4-168279 | Block "T" Petroleum, Inc. only | Rosita (Wilcox P) | Duval | 1 | 28.4K | 3.19M | Apr 1998 – Apr 2026 |
| Ft. Worth National Bank Gas Unit G-2-144645 | Blackbrush O & G, LLC only | Buchel (Edwards) | De Witt | 1 | 28K | 3.65M | Jan 1993 – Apr 2026 |
| Bankhead G-3-280178 | E2 Operating LLC only | Fort Trinidad (Glen Rose, Upper) | Madison | 1 | 25.2K | 158K | Jul 2015 – Mar 2026 |
| Marchbanks-Cadena G-4-210976 | Green Exploration Company only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 23.2K | 468K | May 2005 – Nov 2016 |
| Frost National Bank G-4-167907 | Hilcorp Energy Company only | B.M.T. (Lobo Cons.) | Webb | 1 | 22.4K | 8.45M | Apr 1998 – Apr 2026 |
| Federal Land Bank of Texas G-3-150653 | Swift Energy Company only | Willow Slough (FB-B, Hack-A) | Chambers | 1 | 20K | 1.8M | Aug 1994 – Dec 1997 |
| Bonner, Bobby G-5-179347 | Diversified Production LLC only | Banks Stop (Bossier Sand) | Freestone | 1 | 17.9K | 1.83M | Sep 2000 – Jun 2016 |
| First National Bank of Mission G-4-155866 | OXY USA Inc. only | Alvarado (Vicksburg) | Starr | 1 | 17.2K | 1.26M | Sep 1995 – Oct 2012 |
| Federal Land Bank of Texas G-3-127970 | Swift Energy Company only | Fig Ridge, N. (Tex-Miss) | Chambers | 1 | 16.3K | 482K | Jan 1993 – Mar 1994 |
| Frost National Bank G-4-138439 | Hilcorp Energy Company only | Villegas (Middle Wilcox 7950) | Webb | 1 | 16.3K | 2.69M | Jan 1993 – Apr 2026 |
| Banks, W. R. G-6-103243 | XTO Energy Inc. only | Carthage (Cotton Valley) | Panola | 1 | 16.2K | 2.61M | Jan 1993 – Apr 2026 |
| Frost National Bank G-4-123572 | Hilcorp Energy Company only | Villegas (Middle Wilcox 7950) | Webb | 1 | 16.1K | 3.01M | Jan 1993 – Apr 2026 |
| Frost National Bank G-4-176021 | Hilcorp Energy Company only | B.M.T. (Lobo Cons.) | Webb | 1 | 14.4K | 4.24M | Jan 2000 – Apr 2026 |
| Frost National Bank G-4-125282 | Conocophillips Company only | Villegas (Middle Wilcox 7950) | Webb | 1 | 14.2K | 1.1M | Jan 1993 – Sep 2002 |
| Frost National Bank G-4-258774 | Petrovybe Opco LLC only | La Grulla (Yegua 7100) | Starr | 1 | 14.2K | 1.25M | Dec 2010 – Apr 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 |
| Frost National Bank G-4-139395 | Hilcorp Energy Company only | Villegas (Middle Wilcox 7950) | Webb | 1 | 13.4K | 1.94M | Jan 1993 – Apr 2026 |
| First National Bank-Baldwin Unit G-6-212353 | Diversified Production LLC only | Carthage (Cotton Valley) | Panola | 1 | 12.9K | 1.19M | May 2005 – Apr 2026 |
| Banks, W.R. G-6-145590 | XTO Energy Inc. only | Carthage (Cotton Valley) | Panola | 1 | 12.8K | 2.68M | May 1993 – Apr 2026 |
| Frost National Bank G-4-143981 | Hilcorp Energy Company only | Villegas (Middle Wilcox 7950) | Webb | 1 | 12.4K | 2.76M | Jan 1993 – Jan 2012 |
| Marchbanks Cadena et Al G-4-233158 | Green Exploration Company only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 11.9K | 257K | Nov 2007 – Jul 2016 |
| Banks, W. R. G-6-154978 | XTO Energy Inc. only | Carthage (Cotton Valley) | Panola | 1 | 11.8K | 1.92M | Jul 1995 – Apr 2026 |
| Banks "a" Unit G-13-194714 | Lime Rock Resources IV-a, L.P. only | Newark, East (Barnett Shale) | Denton | 1 | 11.2K | 520K | May 2003 – Mar 2026 |
| First National Bank-Baldwin Unit G-6-217229 | Diversified Production LLC only | Carthage (Cotton Valley) | Panola | 1 | 11.1K | 1.01M | Nov 2005 – Apr 2026 |
| Marchbanks-Cadena G-4-205938 | Green Exploration Company only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 11K | 398K | Nov 2004 – Sep 2017 |
| Frost National Bank G-4-172209 | Hilcorp Energy Company only | B.M.T. (Lobo Cons.) | Webb | 1 | 10.9K | 2.09M | Feb 1999 – Apr 2026 |
| Frost National Bank -A- G-4-230566 | Mountain V Texas, LLC only | Braulia, East (Vicksburg Cons.) | Starr | 1 | 10.9K | 881K | Jul 2007 – Dec 2012 |
| Banks, W. R. G-6-141385 | XTO Energy Inc. only | Carthage (Cotton Valley) | Panola | 1 | 10.9K | 2.58M | Jan 1993 – Apr 2026 |
| Nationsbank G-4-162130 | Energy 2000, Inc. only | Garcias Ridge (Queen City) | Starr | 1 | 10K | 200K | Jan 1997 – Jun 2003 |
| Banks "a" Unit G-13-194329 | Lime Rock Resources IV-a, L.P. only | Newark, East (Barnett Shale) | Denton | 1 | 9.64K | 745K | Apr 2003 – Apr 2026 |
| Amer. Nat'l. Bank of Austin G.U. G-4-118489 | Mag Exploration LLC only | Brannon (Guedin, Lo.) | San Patricio | 1 | 9.4K | 286K | Jan 1993 – Aug 2025 |
| Frost Bank/Peal Ranch Unit G-4-230687 | Orx Resources, L.L.C. only | Lopez, SE. (Consolidated) | Duval | 1 | 9.31K | 1.15M | Sep 2007 – Dec 2025 |
| Banks "A" G-13-190723 | Lime Rock Resources IV-a, L.P. only | Newark, East (Barnett Shale) | Denton | 1 | 9.11K | 927K | Aug 2002 – Apr 2026 |
| Banks "a" Unit G-13-224360 | Lime Rock Resources IV-a, L.P. only | Newark, East (Barnett Shale) | Denton | 1 | 9.1K | 1.36M | Jul 2006 – Apr 2026 |
| Banks "a" Unit G-13-224355 | Lime Rock Resources IV-a, L.P. only | Newark, East (Barnett Shale) | Denton | 1 | 8.63K | 2.51M | Aug 2006 – Apr 2026 |
| Ggu 9 - Josephine Banks G-6-160398 | Eqv Operating LLC only | Gladewater, E. (Cotton Vlly SD) | Upshur | 1 | 8.52K | 785K | Oct 1996 – Oct 2015 |
| Banks "a" Unit G-13-195653 | Lime Rock Resources IV-a, L.P. only | Newark, East (Barnett Shale) | Denton | 1 | 8.14K | 1.16M | May 2003 – Apr 2026 |
| Frost National Bank -A- G-4-234008 | Mountain V Texas, LLC only | Braulia, East (Vicksburg Cons.) | Starr | 1 | 7.83K | 500K | Nov 2007 – Jul 2019 |
| Rio National Bank G-4-154511 | American Exploration Company only | McAllen (6900) | Hidalgo | 1 | 7.72K | 1.58M | Feb 1995 – Oct 1996 |
| Wilbanks -B- G-14-28310 | Diversified Production LLC only | Hansford (Morrow, Upper) | Hansford | 1 | 7.7K | 1.75M | Jan 1993 – Apr 2026 |