| McAllen, A.A. "B" G-4-252107 | Merit Energy Company only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 93.8K | 5.03M | Aug 2009 – Apr 2026 |
| Guerra, A.E. G-4-123056 | Texaco E & P Inc. only | McAllen Ranch (Guerra) | Hidalgo | 1 | 93.8K | 6.59M | Jan 1993 – Dec 1995 |
| McAllen, A. A. G-4-147370 | Merit Energy Company only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 92.9K | 2.94M | Nov 1993 – May 2017 |
| Callison O-6-13159 | McDonald Resources, LLC only | Kildare | Marion | 3 | 90.7K | 7.49K | Feb 1993 – Dec 2025 |
| McAllen Fieldwide Unit G-4-185698 | Merit Energy Company only | McAllen-Pharr (Consolidated) | Hidalgo | 1 | 90.4K | 7.66M | Jul 2001 – Apr 2026 |
| McAllen, A. A. "B" G-4-234659 | Merit Energy Company only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 89.6K | 2.67M | Jul 2007 – Apr 2026 |
| Calla Mae O-9-13062 | Quail Ridge Petroleum LLC only | Arledge (Penn Sand) | Coke | 7 | 89.2K | 806K | Jan 1993 – Mar 2026 |
| Guerra, A. E. G-4-156803 | Hilcorp Energy Company only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 89K | 6.12M | Dec 1995 – Apr 2026 |
| Bales Gas Unit G-4-140072 | Merit Energy Company only | McAllen-Pharr (Consolidated) | Hidalgo | 1 | 88.6K | 5.08M | Jan 1993 – May 2002 |
| Holland, W. H. Gas Unit G-4-188511 | Shell Western E&P only | McAllen Ranch (Vicksburg N) | Hidalgo | 1 | 88.5K | 5.46M | Dec 2001 – May 2006 |
| McAllen, A. A. "B" G-4-141718 | Merit Energy Company only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 88.3K | 4.41M | Jan 1993 – May 2023 |
| McAllen, A. A. G-4-170905 | Merit Energy Company only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 87.9K | 5.25M | Oct 1998 – Apr 2026 |
| McAllen, A. A. "B" G-4-181544 | Merit Energy Company only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 87.5K | 6.46M | Jan 2001 – Apr 2026 |
| McAllen, A. A. G-4-183994 | Merit Energy Company only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 87.4K | 3.11M | Jul 2001 – May 2017 |
| Wright-Avant Unit O-1-13140 | Callon (Eagle Ford) LLC only | Pearsall (Austin Chalk) | La Salle | 1 | 87.3K | 416K | Jan 1993 – Sep 2017 |
| McAllen, A. A. "B" G-4-223902 | Merit Energy Company only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 86.6K | 4.72M | Nov 2006 – Apr 2026 |
| McCall O-13-4529 | Pop Operating Company only | Hildreth | Montague | 1 | 85.4K | 25.6K | Jan 1993 – Mar 2026 |
| Guerra, A. E. G-4-179386 | Chevron U. S. A. Inc. only | McAllen Ranch (Vicksburg y, E.) | Hidalgo | 1 | 85.1K | 3.99M | Sep 2000 – Jan 2007 |
| McAllen, A. A. G-4-153717 | Merit Energy Company only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 85K | 11.1M | Apr 1995 – Apr 2026 |
| Callaway-Miller O-11-65923 | Hat Oil & Gas, Inc. only | B. R. C., North (Strawn) | Garza | 1 | 84.9K | 13.1K | Jan 1993 – Apr 1998 |
| McAllen, A. A. "B" G-4-221706 | Merit Energy Company only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 84.6K | 6.13M | Aug 2006 – Apr 2026 |
| McAllen, A. A. G-4-218757 | Merit Energy Company only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 84.3K | 4.09M | Apr 2006 – Apr 2026 |
| McAllen, A. A. "B" G-4-223205 | Merit Energy Company only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 83.9K | 3.72M | Jul 2006 – Jan 2026 |
| McAllen, A. A. G-4-172455 | Merit Energy Company only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 83.6K | 6.79M | Feb 1999 – Apr 2026 |
| Avary "A" O-10-24750 | Callon Petroleum Operating Co only | Rhoda Walker (Canyon 5900) | Ward | 2 | 82.9K | 138K | Jan 1993 – Mar 2014 |
| McAllen, A. A. G-4-176684 | OXY USA Inc. only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 82.4K | 5.73M | Mar 2000 – Apr 2012 |
| McAllen, A. A. G-4-67647 | Merit Energy Company only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 82.3K | 3.35M | Jan 1993 – Apr 2023 |
| Guerra, A. E. G-4-177092 | Hilcorp Energy Company only | McAllen Ranch (Guerra) | Hidalgo | 1 | 82K | 8.54M | Apr 2000 – Jan 2009 |
| Woods Christian G-4-37979 | Merit Energy Company only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 82K | 5.23M | Jan 1993 – Sep 2021 |
| McAllen, A.A. G-4-156005 | Shell Western E&P only | McAllen Ranch (Vicksburg S, S.) | Hidalgo | 1 | 81.6K | 2.94M | Oct 1995 – Jun 1997 |
| McAllen, A. A. G-4-179804 | Merit Energy Company only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 81.1K | 1.92M | Nov 2000 – Mar 2015 |
| McAllen, A. A. G-4-197015 | Merit Energy Company only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 81.1K | 4.14M | Aug 2003 – May 2025 |
| Guerra, A. E. G-4-186438 | Hilcorp Energy Company only | McAllen Ranch (Guerra) | Hidalgo | 1 | 80.4K | 8.58M | Nov 2001 – Apr 2013 |
| McCall Davenport O-10-44235 | Extex Operating Company only | Garden City, S. (Wolfcamp) | Fisher | 1 | 78.3K | 583K | Feb 2013 – Mar 2026 |
| McAllen, A. A. G-4-171975 | Merit Energy Company only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 77.1K | 6.06M | Jan 1999 – Apr 2026 |
| McAllen, A. A. "B" G-4-194512 | Merit Energy Company only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 76.9K | 7.79M | Apr 2003 – Nov 2020 |
| McAllen, A. A. G-4-137558 | Shell Western E&P only | McAllen Ranch (Vicksburg S, SE.) | Hidalgo | 1 | 76.7K | 2.32M | May 1993 – Nov 1995 |
| Gaida, M. et Al O-2-7239 | Sue-Ann Operating, L.C. only | Callihan (Kelch) | De Witt | 1 | 76.3K | 90.2K | Jan 1993 – Dec 2012 |
| Guerra, A. E. G-4-229352 | Hilcorp Energy Company only | McAllen Ranch (Guerra) | Hidalgo | 1 | 76K | 5.7M | Apr 2007 – May 2016 |
| McAllen, A.A. G-4-249267 | Hilcorp Energy Company only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 75K | 1.46M | Nov 2008 – Oct 2010 |
| McAllen, A. A. "B" G-4-251889 | Merit Energy Company only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 75K | 3.04M | Jul 2009 – Apr 2026 |
| Beaurline, A. W. G-4-168183 | Merit Energy Company only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 75K | 2.84M | Mar 1998 – Apr 2026 |
| Callie "42-A" O-10-34610 | Patriot Resources, Inc. only | Silver Queen (Penn-Canyon) | Howard | 1 | 74.9K | 129K | Aug 1995 – May 2003 |
| Woods Christian G-4-188727 | Merit Energy Company only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 74.5K | 3.13M | Apr 2002 – Apr 2026 |
| McAllen, A.A. G-4-213675 | Merit Energy Company only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 74.5K | 3.09M | Sep 2005 – Apr 2026 |
| McAllen Fieldwide Unit G-4-178287 | Merit Energy Company only | McAllen-Pharr (Consolidated) | Hidalgo | 1 | 73.9K | 8.43M | Jul 2000 – Apr 2026 |
| McAllen, A. A. "B" G-4-227842 | Merit Energy Company only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 73.6K | 1.56M | Mar 2007 – Apr 2026 |
| Woods Christian G-4-203191 | Merit Energy Company only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 72.6K | 4.32M | Jun 2004 – Apr 2026 |
| McAllen, A. A. G-4-251761 | Merit Energy Company only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 72K | 3.81M | Jul 2009 – Apr 2026 |
| McAllen, A. A. G-4-186035 | Hilcorp Energy Company only | McAllen Ranch (Vicksburg Y) | Hidalgo | 1 | 71K | 2.54M | Aug 2001 – Apr 2026 |