| Dakota O-8-28873 | D.J.F. Services, Inc. only | Callahan County Regular | Callahan | 3 | 5.18K | 0 | Sep 2000 – Jan 2019 |
| South Callaghan Ranch G-4-230929 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 5.17K | 953K | Sep 2007 – Aug 2026 |
| Guerra, A. E. G-4-183077 | Chevron U. S. A. Inc. only | McAllen Ranch (Vicksburg S, E.) | Hidalgo | 1 | 5.17K | 53.3K | Jun 2001 – Sep 2005 |
| West McAllen Unit G-4-165042 | Total E&P USA, Inc. only | McAllen (Hackney Lake 6700) | Hidalgo | 1 | 5.14K | 1M | Jan 1997 – Mar 2004 |
| Pippen, J. L. O-8-9020 | Interstate Explorations LLC only | Callahan County Regular | Callahan | 4 | 5.11K | 31 | by Jan 1993 – Aug 2026 |
| Puckett, Ramon O-8-18550 | Interstate Explorations LLC only | Callahan County Regular | Callahan | 1 | 5.08K | 53.5K | by Jan 1993 – Apr 2021 |
| South Callaghan Ranch G-4-241004 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 5.07K | 673K | Jun 2008 – Aug 2026 |
| McAllen, A.A. G-4-130682 | Shell Western E&P only | McAllen Ranch(vicksburg-U-V-,se) | Hidalgo | 1 | 5.07K | 85.3K | by Jan 1993 – Oct 1993 |
| McAllen, A.A. "B" G-4-88272 | OXY USA Inc. only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 5.05K | 696K | Jun 1993 – Mar 2004 |
| Betcher, Albert, Jr. O-8-10892 | Atwell Technical Services, Inc. only | Callahan County Regular | Callahan | 3 | 4.99K | 473 | by Jan 1993 – Mar 2014 |
| McAllister G-14-236454 | Presidio Petroleum LLC only | Lister (Granite Wash) | Wheeler | 1 | 4.96K | 957K | May 2007 – Aug 2026 |
| McAllen Fieldwide Unit G-4-37174 | Fina Oil & Chemical Company only | McAllen (Marks FB B) | Hidalgo | 1 | 4.96K | 433K | Feb 1993 – Sep 1994 |
| Barton, Tom O-8-9195 | Ruby Operating Company, Inc only | Callahan County Regular | Callahan | 5 | 4.95K | 21 | by Jan 1993 – May 2019 |
| Huebner, Pauline G-3-275344 | Callon (Eagle Ford) LLC only | Huebner ( 9,960 S.) | Matagorda | 1 | 4.94K | 1.03M | Jan 2014 – Mar 2016 |
| Callow G-6-30106 | Conocophillips Company only | Carthage (Pettit, Lower Gas) | Panola | 1 | 4.86K | 941K | by Jan 1993 – Feb 2008 |
| McAllen, A. A. G-4-93691 | Hilcorp Energy Company only | McAllen Ranch (Vicksburg Y) | Hidalgo | 1 | 4.84K | 172K | by Jan 1993 – Dec 2024 |
| McAllen, A. A. G-4-259169 | Hilcorp Energy Company only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 4.75K | 504K | Jan 2011 – Jul 2026 |
| McAllen Fieldwide Unit G-4-189112 | Totalfinaelf E&P USA Inc only | McAllen (Lower Marks) | Hidalgo | 1 | 4.74K | 443K | Feb 2001 – Jan 2003 |
| Hooks O-8-31843 | 5L Properties, Inc. only | Callahan County Regular | Callahan | 3 | 4.73K | 0 | Sep 2015 – Aug 2026 |
| 3-J's O-8-28884 | TCS Petroleum Co., LLC only | Callahan County Regular | Callahan | 3 | 4.73K | 23.5K | Oct 2000 – Sep 2005 |
| Davis Estate "A" O-8-23810 | Couch Oil & Gas, Inc. only | Callahan County Regular | Callahan | 1 | 4.73K | 94 | by Jan 1993 – Jan 2016 |
| Long, E. M. O-8-371 | K R Well Technology, LLC only | Callahan County Regular | Callahan | 7 | 4.71K | 30 | by Jan 1993 – Nov 2020 |
| McAllen, A. A. G-4-156734 | Shell Western E&P Inc. only | McAllen Ranch (Vicksburg S, SE.) | Hidalgo | 1 | 4.7K | 86.3K | Dec 1995 – Feb 1996 |
| "4" Snyder Mineral Trust O-8-24701 | Mc Glover, LLC only | Callahan County Regular | Callahan | 5 | 4.66K | 42 | by Jan 1993 – Jun 2013 |
| Burnam O-8-14060 | Masada Oil & Gas Company Ltd. only | Callahan County Regular | Callahan | 4 | 4.65K | 21 | by Jan 1993 – Sep 2005 |
| McWilliams 207 O-8-30172 | Quail Well Service, Inc. only | Callahan County Regular | Callahan | 4 | 4.63K | 0 | Aug 2008 – Sep 2012 |
| McAllen, A. A. G-4-97096 | Hilcorp Energy Company only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 4.6K | 331K | by Jan 1993 – Aug 2026 |
| Callaghan Ranch G-4-146072 | Chesapeake Operating, Inc. only | Finley-Webb (Upper Cons) | Webb | 1 | 4.57K | 4.07M | Jul 1993 – Jun 2009 |
| Woods Christian G-4-216146 | OXY USA Inc. only | McAllen Ranch (Vicksburg N) | Hidalgo | 1 | 4.51K | 403K | Jan 2006 – Jun 2012 |
| McAllen, A. A. G-4-242233 | Hilcorp Energy Company only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 4.49K | 1.24M | Oct 2008 – Aug 2022 |
| McAllen, A. A. G-4-143538 | Hilcorp Energy Company only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 4.48K | 202K | by Jan 1993 – Aug 2016 |
| McCall, J. W. -B- O-13-4471 | McCommons Oil Company only | Engle (Strawn) | Montague | 1 | 4.47K | 2.09K | by Jan 1993 – May 2010 |
| South Callaghan Ranch G-4-248452 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 4.42K | 605K | Apr 2009 – Aug 2026 |
| South Callaghan Ranch G-4-239670 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 4.38K | 517K | Apr 2008 – Aug 2026 |
| South Callaghan Ranch G-4-237147 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 4.33K | 608K | Mar 2008 – Aug 2026 |
| McAllen, A. A. G-4-55456 | Shell Western E&P Inc. only | McAllen Ranch (Vicksburg S, S.) | Hidalgo | 1 | 4.32K | 88.2K | May 1993 – Sep 1996 |
| Guitar O-8-17543 | Grayrock Energy II, LLC only | Callahan County Regular | Callahan | 2 | 4.3K | 62.6K | by Jan 1993 – Sep 2006 |
| Cook G-4-115440 | Shell Western E&P only | McAllen (Elkins 6300) | Hidalgo | 1 | 4.29K | 1.37M | by Jan 1993 – Nov 2006 |
| Dyer "2988" G-8-171327 | Van Operating, Ltd. only | Callahan, NE (Congl) | Callahan | 1 | 4.27K | 221K | Jan 1999 – Mar 2012 |
| South Callaghan Ranch G-4-247838 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 4.25K | 577K | Oct 2008 – Aug 2026 |
| McAllen, A. A. "B" G-4-266510 | OXY USA Inc. only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 4.24K | 201K | Dec 2011 – Jan 2013 |
| South Callaghan Ranch G-4-143688 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 4.22K | 4.39M | by Jan 1993 – Aug 2026 |
| Herman, Edith O-8-18455 | Callaway Production, LLC only | Brown County Regular | Brown | 4 | 4.18K | 34.3K | by Jan 1993 – Sep 2005 |
| Mc Allen Fieldwide Unit G-4-69102 | Fina Oil & Chemical Company only | McAllen (Grissom 7900) | Hidalgo | 1 | 4.17K | 267K | by Jan 1993 – Apr 1996 |
| Spears,thompson Callaway Lease O-1-1425 | Black Jack Services, L.L.C. only | Rinehart (Austin Chalk) | Bexar | 6 | 4.16K | 59 | by Jan 1993 – Oct 2004 |
| Guerra "a" Gas Unit G-4-127816 | Dewbre Petroleum Corporation only | McAllen Ranch (Guerra) | Hidalgo | 1 | 4.14K | 663K | by Jan 1993 – Aug 2026 |
| Shoemake, E. C., et Al G-4-11962 | Whitesands Operating, L.L.C. only | McAllen-Pharr (Consolidated) | Hidalgo | 1 | 4.12K | 295K | by Jan 1993 – Feb 2019 |
| McCall, C. S., Etal O-13-16928 | Allen, C. L. (Doie) only | Etter, N. W. (Conglomerate) | Montague | 2 | 4.11K | 1.32K | by Jan 1993 – Dec 1998 |
| McAllen, A.A. G-4-157782 | Shell Western E&P only | McAllen Ranch(vicksburg-U-V-,se) | Hidalgo | 1 | 4.1K | 145K | Feb 1996 – Mar 1996 |
| Ross,a.c. "110" G-8-114921 | Bacon Energy only | Callahan County Regular (Gas) | Callahan | 1 | 4.09K | 261K | May 1993 – Feb 2012 |