| Birchridge-Allen Unit G-3-149117 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 412K | 4.06M | Mar 1994 – Feb 2020 |
| McAllen, A. A. G-4-149439 | Shell Western E&P only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 350K | 12.6M | Apr 1994 – Jan 2001 |
| St. Joseph Hospital Found. G-3-140083 | Kebo Oil & Gas, Inc. only | Allen Dome (10,800) | Brazoria | 1 | 347K | 3.71M | Jan 1993 – Aug 2000 |
| McAllen, A. A. "B" G-4-182723 | Merit Energy Company only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 303K | 6.44M | Apr 2001 – Apr 2026 |
| McAllen, A. A. G-4-161036 | Shell Western E&P only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 301K | 10.9M | Jul 1996 – Oct 2004 |
| Guerra, E.E. "A" G-4-121568 | Dewbre Petroleum Corporation only | McAllen Ranch (Guerra) | Hidalgo | 1 | 295K | 18.6M | Jan 1993 – Apr 2026 |
| McAllen, A. A. 'B' G-4-137216 | Merit Energy Company only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 294K | 9M | Jan 1993 – Apr 2026 |
| Dickson Allen G-2-287781 | FW Eagle Ford I, LLC only | Eagleville (Eagle Ford-2) | Lavaca | 1 | 290K | 2.26M | Apr 2015 – Apr 2026 |
| Allen 55-2-44 Lov Unit G-10-286761 | Pdeh LLC only | Phantom (Wolfcamp) | Loving | 1 | 290K | 1.55M | Dec 2018 – Apr 2026 |
| McAllen, A. A. G-4-139496 | Hilcorp Energy Company only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 267K | 3M | Jan 1993 – Aug 2002 |
| Beaurline, A. W. G-4-164781 | Merit Energy Company only | McAllen Ranch (Vicksburg y, E.) | Hidalgo | 1 | 263K | 9.96M | Jul 1997 – May 2017 |
| Jr. Allen OL G-3-149216 | Chesapeake Operating, Inc. only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 263K | 1.61M | Feb 1994 – Feb 2001 |
| Allen 55-2-44 Lov Unit G-10-290017 | Pdeh LLC only | Phantom (Wolfcamp) | Loving | 1 | 261K | 935K | May 2015 – Apr 2026 |
| McAllen, A. A. G-4-181160 | Merit Energy Company only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 259K | 8.24M | Dec 2000 – Apr 2026 |
| McAllen, A. A. "B" G-4-231958 | Merit Energy Company only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 252K | 5.5M | Sep 2007 – Apr 2026 |
| Guerra, A. E. G-4-145946 | Texaco E & P Inc. only | McAllen Ranch (Guerra) | Hidalgo | 1 | 248K | 21.8M | Mar 1993 – Oct 1999 |
| McAllen, A. A. "B" G-4-185731 | Merit Energy Company only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 246K | 4.27M | Oct 2001 – Apr 2026 |
| Guerra, A. E. G-4-223211 | Hilcorp Energy Company only | McAllen Ranch (Guerra) | Hidalgo | 1 | 242K | 22.5M | Sep 2006 – Jun 2016 |
| McAllen, A. A. 'B' G-4-138997 | Merit Energy Company only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 235K | 4.81M | Jan 1993 – Apr 2026 |
| Beaurline, A. W. G-4-163926 | Merit Energy Company only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 233K | 10.1M | Apr 1997 – Sep 2001 |
| McAllen, A. A. "B" G-4-186875 | Merit Energy Company only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 228K | 4.37M | Dec 2001 – Apr 2026 |
| McAllen, A.A. "B" G-4-133221 | Merit Energy Company only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 226K | 9.97M | Jan 1993 – Apr 2026 |
| Black Stone-Allen A-1 G-3-231401 | Zarvona Energy LLC only | Double a Wells, N (Austin Chalk) | Polk | 1 | 226K | 1.09M | Oct 2006 – Apr 2026 |
| McAllen Fieldwide Unit G-4-172983 | Shell Western E&P only | McAllen (Consolidated FB-B) | Hidalgo | 1 | 225K | 19.6M | Sep 1998 – Jan 2006 |
| Beaurline, A. W. G-4-165269 | Merit Energy Company only | McAllen Ranch (Vicksburg S, E.) | Hidalgo | 1 | 221K | 2.74M | Aug 1997 – Apr 2026 |
| Guerra, A. E. G-4-227039 | Hilcorp Energy Company only | McAllen Ranch (Guerra) | Hidalgo | 1 | 220K | 23M | Mar 2007 – Mar 2016 |
| Guerra, A. E. G-4-137492 | Chevron U. S. A. Inc. only | McAllen Ranch (Guerra) | Hidalgo | 1 | 216K | 21.5M | Jan 1993 – Apr 2002 |
| McAllen, A.A. "B" G-4-145438 | Merit Energy Company only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 214K | 4.36M | May 1993 – Apr 2026 |
| Spohn Foundation G-3-280236 | Magnum Producing, LP only | Allen Dome (10,800) | Brazoria | 1 | 212K | 3.96M | Jun 2015 – Dec 2021 |
| Woods Christian G-4-143961 | Merit Energy Company only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 212K | 8.26M | Jan 1993 – Apr 2026 |
| Allen 55-2-44 Lov Unit E G-10-287560 | Pdeh LLC only | Phantom (Wolfcamp) | Loving | 1 | 211K | 1.01M | Aug 2016 – Sep 2025 |
| McAllen, A.A. G-4-148852 | Merit Energy Company only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 205K | 8.73M | Mar 1994 – Jan 2022 |
| Malinda 745 G-14-288241 | Highmark Energy Operating, LLC only | Allen-Parker (Marmaton) | Ochiltree | 1 | 194K | 1.06M | Nov 2018 – Apr 2026 |
| Allen G-3-145818 | Union Pacific Resources Company only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 188K | 1.3M | May 1993 – Aug 1999 |
| McAllen, A. A. "Slot" G-4-167307 | Merit Energy Company only | McAllen Ranch (Vicksburg S, E.) | Hidalgo | 1 | 182K | 2.69M | Dec 1997 – Jan 2004 |
| McAllen, A. A. "B" G-4-136393 | Merit Energy Company only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 181K | 8.14M | Jan 1993 – Jun 2025 |
| Guerra, A.E. G-4-163754 | Chevron U. S. A. Inc. only | McAllen Ranch (Vicksburg y, E.) | Hidalgo | 1 | 180K | 15M | Jun 1997 – Jan 2000 |
| McAllen, A. A. G-4-143186 | Shell Western E&P Inc. only | McAllen Ranch (Vicksburg P, Q) | Hidalgo | 1 | 179K | 4.74M | Jan 1993 – Feb 1997 |
| Martinez, E.L. G.U. No. 1 G-4-139488 | Hilcorp Energy Company only | McAllen Ranch (Vicksburg N) | Hidalgo | 1 | 178K | 7.11M | Jan 1993 – Oct 2025 |
| Allen 55-2-44 Lov Unit E G-10-289072 | Pdeh LLC only | Phantom (Wolfcamp) | Loving | 1 | 178K | 716K | Jan 2020 – Apr 2026 |
| Guerra, A. E. G-4-217223 | Hilcorp Energy Company only | McAllen Ranch (Guerra) | Hidalgo | 1 | 178K | 20.2M | Feb 2006 – Nov 2012 |
| McAllen, A. A. "B" G-4-244236 | Merit Energy Company only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 174K | 4.38M | Oct 2008 – Apr 2026 |
| McAllen, A. A. G-4-176395 | Hilcorp Energy Company only | McAllen Ranch (Vksbg P-V,s Cons) | Hidalgo | 1 | 169K | 3.8M | Dec 1999 – Jan 2015 |
| McAllen, A. A. "B" G-4-209835 | Merit Energy Company only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 169K | 9.02M | Apr 2005 – Apr 2026 |
| McAllen, A. A. G-4-177710 | Merit Energy Company only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 161K | 6.36M | Jun 2000 – May 2019 |
| Allen 55-2-44 Lov Unit G-10-289071 | Pdeh LLC only | Phantom (Wolfcamp) | Loving | 1 | 158K | 585K | Jan 2020 – Apr 2026 |
| Guerra, A. E. G-4-163699 | Chevron U. S. A. Inc. only | McAllen Ranch (Vicksburg y, E.) | Hidalgo | 1 | 157K | 12.4M | May 1997 – Nov 1998 |
| Guerra, E. E. G-4-138214 | Dewbre Petroleum Corporation only | McAllen Ranch (Guerra) | Hidalgo | 1 | 155K | 9.7M | Jan 1993 – Feb 2004 |
| Allen, A. G. Unit G-3-154144 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Grimes | 1 | 155K | 1.91M | Apr 1995 – Apr 2017 |
| McAllen, A. A. "B" G-4-226486 | Merit Energy Company only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 150K | 3.71M | Jan 2007 – Apr 2026 |