| Callahan O-10-55372 | SM Energy Company only | Spraberry (Trend Area) | Martin | 9 | 1.49M | 2.72M | May 2021 – Apr 2026 |
| Warwink University 18-33 "B" O-10-35304 | Callon Petroleum Operating Co only | War-Wink, W. (Wolfcamp) | Ward | 7 | 1.42M | 2.12M | Apr 1997 – Nov 2018 |
| Warwink University "18-34" -A- O-10-35136 | Callon Petroleum Operating Co only | War-Wink, W. (Wolfcamp) | Ward | 7 | 1.08M | 1.98M | Nov 1996 – Jan 2020 |
| Warwink University 18-34 'B' O-10-35475 | Callon Petroleum Operating Co only | War-Wink, W. (Wolfcamp) | Ward | 7 | 1.05M | 1.91M | Aug 1997 – Nov 2018 |
| Last Call Unit O-9-21565 | COG Operating LLC only | Spraberry (Trend Area) | Upton | 2 | 790K | 1.96M | Feb 2022 – Apr 2026 |
| Huebner, Pauline A-382 O-3-24274 | Callon (Eagle Ford) LLC only | Provedence (Frio) | Matagorda | 3 | 614K | 1.69M | Oct 2002 – May 2022 |
| Callahan 54-2-17 Unit G-10-281886 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Loving | 1 | 587K | 3.99M | Oct 2016 – Apr 2026 |
| Liberatore Ranch a Unit O-1-16552 | Callon (Eagle Ford) LLC only | Eagleville (Eagle Ford-1) | La Salle | 3 | 445K | 1.66M | Feb 2013 – Dec 2018 |
| Captain Call G-10-276248 | COG Operating LLC only | Sandbar (Bone Spring) | Culberson | 1 | 427K | 3.9M | Apr 2014 – Apr 2026 |
| Cimarex University 18-41 'B' O-10-39085 | Callon Petroleum Operating Co only | War-Wink, W. (Wolfcamp) | Ward | 1 | 404K | 703K | Apr 2008 – Mar 2021 |
| Lochridge O-10-35607 | Callon Petroleum Operating Co only | War-Wink, W. (Wolfcamp) | Ward | 2 | 374K | 613K | Jan 1998 – Dec 2019 |
| Monroe 34-116 Unit O-10-43636 | Callon Petroleum Operating Co only | Phantom (Wolfcamp) | Ward | 2 | 359K | 771K | Oct 2012 – Aug 2019 |
| Cimarex University '18-38' O-10-38717 | Callon Petroleum Operating Co only | Two Georges (Bone Spring) | Ward | 1 | 350K | 555K | Jan 2008 – Mar 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 |
| Allar-Callaway 27K O-10-62214 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 341K | 461K | Mar 2025 – Apr 2026 |
| Lassard Callahan O-10-55371 | SM Energy Company only | Spraberry (Trend Area) | Martin | 1 | 339K | 1M | May 2021 – Apr 2026 |
| Madison-Callaway 27G O-10-62205 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 338K | 387K | Mar 2025 – Apr 2026 |
| Captain Call G-10-278371 | COG Operating LLC only | Sandbar (Bone Spring) | Culberson | 1 | 324K | 2.32M | Jun 2014 – Apr 2026 |
| Captain Call G-10-277257 | COG Operating LLC only | Sandbar (Bone Spring) | Culberson | 1 | 303K | 2.95M | Jul 2014 – Apr 2026 |
| 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 |
| Allar-Callaway 27R O-10-62201 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 301K | 438K | Mar 2025 – 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 |
| Wyndham A2 O-10-49315 | Callon Petroleum Operating Co only | Spraberry (Trend Area) | Howard | 1 | 288K | 464K | Jun 2017 – Oct 2021 |
| Liberatore Ranch B Unit O-1-16403 | Callon (Eagle Ford) LLC only | Eagleville (Eagle Ford-1) | La Salle | 3 | 278K | 1.2M | Jan 2013 – Dec 2018 |
| McCallum-Smith Unit 1 O-3-22754 | CML Exploration, LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 270K | 350K | May 1995 – Apr 2026 |
| Madison-Callaway 27D O-10-62221 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 269K | 288K | Mar 2025 – Apr 2026 |
| Arc-Call & Jones O-3-9780 | HD Operating Co, LLC only | Newton | Newton | 3 | 268K | 835K | May 1994 – Feb 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 |
| 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 |
| Just Call ME Ken 8-82 Unit G-10-290010 | Crescent Energy Operating, LLC only | Phantom (Wolfcamp) | Reeves | 1 | 237K | 1.74M | Mar 2020 – Apr 2026 |
| 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 |
| Cimarex University 20-2 "A" O-10-39465 | Callon Petroleum Operating Co only | Two Georges (Bone Spring) | Winkler | 1 | 232K | 217K | Jan 2009 – Aug 2022 |
| 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 |
| Arco-Donaho O-3-25372 | Neches Transport Inc. only | Ada Call (Y-5) | Newton | 2 | 226K | 0 | Apr 2009 – 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 |
| 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 |
| Captain Call G-10-278656 | COG Operating LLC only | Sandbar (Bone Spring) | Culberson | 1 | 209K | 2.53M | Jun 2013 – Apr 2026 |