| Frost National Bank -A- G-4-224321 | Mountain V Texas, LLC only | Braulia, East (Vicksburg Cons.) | Starr | 1 | 77.8K | 3.31M | Oct 2006 – Aug 2026 |
| Champion International Corp. G-3-152481 | Ballard Exploration Company,inc. only | Hathaway, E. (Yegua EY-3) | Liberty | 1 | 75.9K | 3.08M | Dec 1994 – Apr 2014 |
| Champion International Unit G-6-148220 | Swift Energy Company only | Brookeland (Austin Chalk, 8800) | Newton | 1 | 71.9K | 849K | Dec 1993 – Feb 1999 |
| Groos National Bank G-4-41927 | Caribbean Energy LLC II only | Gregg Wood, S. (5350) | Starr | 1 | 52.4K | 4.58M | by Jan 1993 – Aug 2026 |
| Champion International Unit A-20 G-6-148222 | Prize Exploration & Prod, LLC only | Brookeland (Austin Chalk, 8800) | Newton | 1 | 52.1K | 828K | Dec 1993 – Jan 2022 |
| Champion International Corp. G-3-156952 | Hubco Exploration Inc. only | Sabine Tram (Wilcox 2) | Newton | 1 | 50.3K | 301K | Oct 1995 – Feb 2000 |
| 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 |
| International Paper Co. GU (SA) G-6-283726 | Eqv Operating LLC only | Oak Hill (Cotton Valley) | Panola | 1 | 29.3K | 4.34M | Sep 2017 – Aug 2026 |
| Frost National Bank 65 G-4-168279 | Block "T" Petroleum, Inc. only | Rosita (Wilcox P) | Duval | 1 | 28.4K | 3.19M | Apr 1998 – Jul 2026 |
| Ft. Worth National Bank Gas Unit G-2-144645 | Blackbrush O & G, LLC only | Buchel (Edwards) | De Witt | 1 | 28K | 3.67M | by Jan 1993 – Aug 2026 |
| Champion International G-3-143887 | Hilcorp Energy Company only | Vidor, NE. (Vicksburg) | Orange | 1 | 26.7K | 560K | by Jan 1993 – Feb 2014 |
| First National Baldwin Unit G-6-148258 | Eqv Operating LLC only | Carthage (Cotton Valley) | Panola | 1 | 23.5K | 1.21M | Jan 1994 – Apr 2020 |
| International Paper Co. GU G-6-285034 | Eqv Operating LLC only | Oak Hill (Cotton Valley) | Panola | 1 | 22.7K | 3.32M | Jun 2018 – Aug 2026 |
| Frost National Bank G-4-167907 | Hilcorp Energy Company only | B.M.T. (Lobo Cons.) | Webb | 1 | 22.4K | 8.46M | Apr 1998 – Aug 2026 |
| Champion International G-3-158637 | Hilcorp Energy Company only | Woodridge (Hackberry) | Orange | 1 | 20K | 854K | Feb 1996 – Jun 2010 |
| Champion International Corp. G-3-225153 | Sugar Enterprises, LLC only | Tantabogue Creek (Dexter) | Trinity | 1 | 18.9K | 800K | Jan 2007 – Aug 2026 |
| First National Bank of Mission G-4-155866 | OXY USA Inc. only | Alvarado (Vicksburg) | Starr | 1 | 17.2K | 1.26M | Sep 1995 – Oct 2012 |
| International Paper G-6-184718 | TGNR East Texas II LLC only | Bethany (Cotton Valley) | Panola | 1 | 16.3K | 957K | Aug 2001 – Apr 2026 |
| Frost National Bank G-4-138439 | Hilcorp Energy Company only | Villegas (Middle Wilcox 7950) | Webb | 1 | 16.3K | 2.7M | by Jan 1993 – Aug 2026 |
| Champion International G-3-139067 | Hilcorp Energy Company only | Woodridge (Yegua EY) | Orange | 1 | 16.3K | 317K | by Jan 1993 – Nov 2005 |
| Frost National Bank G-4-123572 | Hilcorp Energy Company only | Villegas (Middle Wilcox 7950) | Webb | 1 | 16.1K | 3.01M | by Jan 1993 – Aug 2026 |
| Frost National Bank G-4-176021 | Hilcorp Energy Company only | B.M.T. (Lobo Cons.) | Webb | 1 | 14.4K | 4.25M | Jan 2000 – Aug 2026 |
| Frost National Bank G-4-125282 | Conocophillips Company only | Villegas (Middle Wilcox 7950) | Webb | 1 | 14.2K | 1.1M | by 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 – Aug 2026 |
| Frost National Bank G-4-139395 | Hilcorp Energy Company only | Villegas (Middle Wilcox 7950) | Webb | 1 | 13.4K | 1.94M | by Jan 1993 – Aug 2026 |
| First National Bank-Baldwin Unit G-6-212353 | Diversified Production LLC only | Carthage (Cotton Valley) | Panola | 1 | 13.1K | 1.19M | May 2005 – Aug 2026 |
| Champion International Corp. "D" G-3-136643 | Parten Operating Inc. only | Fort Trinidad (Glen Rose -D-) | Houston | 1 | 12.8K | 269K | by Jan 1993 – Oct 1999 |
| International Paper Co. G-6-160113 | Diversified Production LLC only | Minden (Travis Peak Cons.) | Rusk | 1 | 12.7K | 1.73M | Jul 1996 – Aug 2026 |
| Frost National Bank G-4-143981 | Hilcorp Energy Company only | Villegas (Middle Wilcox 7950) | Webb | 1 | 12.4K | 2.76M | by Jan 1993 – Jan 2012 |
| First National Bank-Baldwin Unit G-6-217229 | Diversified Production LLC only | Carthage (Cotton Valley) | Panola | 1 | 11.2K | 1.02M | Nov 2005 – Aug 2026 |
| Frost National Bank G-4-172209 | Hilcorp Energy Company only | B.M.T. (Lobo Cons.) | Webb | 1 | 10.9K | 2.09M | Feb 1999 – Aug 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 |
| Dugat Unit G-4-163897 | National Energy Group, Inc. only | Gregory, NW (F-10) | San Patricio | 1 | 10.6K | 181K | Mar 1997 – Dec 1997 |
| American National Ins. G.U. -A- G-1-67499 | Varas Energy Operating Company, only | Hostetter, North (Wilcox,upper) | McMullen | 1 | 10.5K | 2.97M | by Jan 1993 – Aug 2026 |
| Champion International Corp. G-3-161580 | V-F Petroleum Inc. only | Sabine Tram (Wilcox 2) | Newton | 1 | 9.47K | 90.7K | Jan 1997 – Jul 2001 |
| 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 |
| Frost National Bank G-4-141566 | Hilcorp Energy Company only | Villegas (Middle Wilcox 7950) | Webb | 1 | 7.69K | 1.48M | by Jan 1993 – Aug 2026 |
| Gladney Gas Unit G-6-164171 | National Energy Group, Inc. only | Oak Hill, NE. (Travis Peak) | Rusk | 1 | 7.68K | 76.8K | May 1997 – Jan 1999 |
| Royal National Bank G-6-118760 | Green River Resources Inc. only | Beto (Rodessa) | Anderson | 1 | 7.48K | 254K | by Jan 1993 – Aug 2026 |
| Frost National Bank G-4-191667 | Hilcorp Energy Company only | B.M.T. (Lobo Cons.) | Webb | 1 | 7.06K | 2.11M | Aug 2002 – Aug 2026 |
| Frost National Bank G-4-140930 | Hilcorp Energy Company only | Villegas (Middle Wilcox 7950) | Webb | 1 | 6.95K | 1.91M | by Jan 1993 – Aug 2026 |
| Marshall National Bank G-6-140723 | Pedernales Petroleum OP, LLC only | Waskom, N. (Hill) | Harrison | 1 | 6.78K | 740K | by Jan 1993 – Feb 2017 |
| Hittson -B- G-8-17881 | Rister Oil&gas International LLC only | Lee Ray (Lake) | Eastland | 1 | 6.7K | 681K | by Jan 1993 – Jun 2023 |
| Frost National Bank G-4-129716 | Conocophillips Company only | B.M.T. (Lobo Cons.) | Webb | 1 | 6.46K | 1.98M | by Jan 1993 – Mar 2002 |
| First National Bank of Mission G-4-10994 | Wagner Oil Company only | Jay Simmons (6400) | Starr | 1 | 6.4K | 125K | by Jan 1993 – Jan 2017 |
| Silvey Bridge Unit G-6-173302 | International Western Oil Corp only | Oak Hill (Cotton Valley) | Rusk | 1 | 6.33K | 1.39M | Apr 1999 – Oct 2024 |
| Frost National Bank G-4-172089 | Hilcorp Energy Company only | B.M.T. (Lobo Cons.) | Webb | 1 | 6.32K | 2.55M | Nov 1998 – Aug 2026 |
| Champion International G-6-157363 | Blossom Enterprises, Inc. only | White Oak Creek (Travis Peak) | Cherokee | 1 | 6.1K | 798K | Dec 1995 – Feb 1997 |
| Frost National Bank -A- G-4-181428 | Kerr-McGee Oil & Gas Onshore LLC only | Garcia (Vicksburg-Flores 5500) | Starr | 1 | 6.06K | 280K | Jan 2001 – Oct 2001 |