| Callaghan Ranch G-4-210183 | Hilcorp Energy Company only | Finley-Webb (Lobo Cons) | Webb | 1 | 18.2K | 1.09M | Apr 2005 – Oct 2012 |
| South Callaghan Ranch G-4-247408 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 12.9K | 1.5M | Jan 2009 – Apr 2026 |
| South Callaghan Ranch G-4-222998 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 12.6K | 2.99M | Aug 2006 – Apr 2026 |
| South Callaghan Ranch G-4-236930 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 11.6K | 1.29M | Mar 2008 – Apr 2026 |
| South Callaghan Ranch G-4-247789 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 9.99K | 1.86M | Dec 2008 – Apr 2026 |
| South Callaghan Ranch G-4-237491 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 9.86K | 1.35M | Apr 2008 – Jun 2023 |
| South Callaghan Ranch G-4-226758 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 9.39K | 1.88M | Jan 2007 – Apr 2026 |
| South Callaghan Ranch G-4-243245 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 9.22K | 1.23M | Jun 2008 – Apr 2026 |
| South Callaghan Ranch G-4-231996 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 8.79K | 1.48M | Oct 2007 – Apr 2026 |
| South Callaghan Ranch G-4-246195 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 8.46K | 1.23M | Jul 2008 – Apr 2026 |
| South Callaghan Ranch G-4-247143 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 8.02K | 1.05M | May 2008 – Apr 2026 |
| South Callaghan Ranch G-4-253923 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 8K | 1.14M | Oct 2009 – Apr 2026 |
| South Callaghan Ranch G-4-240278 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 7.79K | 1.04M | May 2008 – Apr 2026 |
| South Callaghan Ranch G-4-229004 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 7.7K | 1.27M | Jul 2007 – Apr 2026 |
| South Callaghan Ranch G-4-144570 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 7.35K | 5.97M | Jan 1993 – Apr 2026 |
| South Callaghan Ranch G-4-222820 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 6.93K | 2.39M | Aug 2006 – Apr 2026 |
| South Callaghan Ranch G-4-143898 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 6.89K | 3.64M | Jan 1993 – Apr 2026 |
| South Callaghan Ranch G-4-241701 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 6.86K | 954K | Jun 2008 – Apr 2026 |
| South Callaghan Ranch G-4-228568 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 6.84K | 1.21M | Jun 2007 – Apr 2026 |
| South Callaghan Ranch G-4-141060 | Aldine Oil and Gas, LP only | Big Cowboy (Lobo 1) | Webb | 1 | 6.82K | 7.41M | Jan 1993 – Apr 2026 |
| South Callaghan Ranch G-4-237354 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 6.38K | 755K | Mar 2008 – Apr 2026 |
| South Callaghan Ranch G-4-241986 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 5.91K | 818K | Aug 2008 – Sep 2023 |
| South Callaghan Ranch G-4-229009 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 5.82K | 1.34M | Jul 2007 – Apr 2026 |
| South Callaghan Ranch G-4-143917 | Aldine Oil and Gas, LP only | Benavides (Lobo Cons.) | Webb | 1 | 5.64K | 4.65M | Jan 1993 – Apr 2026 |
| South Callaghan Ranch G-4-236450 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 5.64K | 928K | Feb 2008 – Apr 2026 |
| South Callaghan Ranch G-4-252798 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 5.62K | 905K | Oct 2009 – Apr 2026 |
| South Callaghan Ranch G-4-220735 | Aldine Oil and Gas, LP only | Contempo (Lobo 1) | Webb | 1 | 5.56K | 990K | Mar 2006 – Apr 2026 |
| South Callaghan Ranch G-4-244719 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 5.38K | 1.3M | Dec 2008 – Apr 2026 |
| Callaghan Ranch G-4-207604 | Chesapeake Operating, Inc. only | Finley-Webb (Upper Cons) | Webb | 1 | 5.23K | 468K | Feb 2005 – Jan 2010 |
| South Callaghan Ranch G-4-230929 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 5.17K | 953K | Sep 2007 – Apr 2026 |
| South Callaghan Ranch G-4-241004 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 5.06K | 672K | Jun 2008 – Apr 2026 |
| Callaghan Ranch G-4-146072 | Chesapeake Operating, Inc. only | Finley-Webb (Upper Cons) | Webb | 1 | 4.57K | 4.07M | Jul 1993 – Jun 2009 |
| South Callaghan Ranch G-4-248452 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 4.38K | 600K | Apr 2009 – Apr 2026 |
| South Callaghan Ranch G-4-239670 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 4.38K | 517K | Apr 2008 – Apr 2026 |
| South Callaghan Ranch G-4-237147 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 4.32K | 606K | Mar 2008 – Apr 2026 |
| South Callaghan Ranch G-4-247838 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 4.25K | 576K | Oct 2008 – Apr 2026 |
| South Callaghan Ranch G-4-143688 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 4.2K | 4.38M | Jan 1993 – Apr 2026 |
| South Callaghan Ranch G-4-161287 | Aldine Oil and Gas, LP only | Brettchance (Lobo 1) | Webb | 1 | 4.04K | 2.65M | Sep 1996 – Apr 2026 |
| Callaghan Ranch G-4-172866 | Hilcorp Energy Company only | Finley-Webb (Upper Cons) | Webb | 1 | 4.02K | 1.16M | Apr 1999 – Jul 2015 |
| South Callaghan Ranch G-4-221165 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 3.95K | 1.73M | May 2006 – Apr 2026 |
| South Callaghan Ranch G-4-225094 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 3.85K | 1.32M | Feb 2007 – Apr 2026 |
| Callaghan Ranch G-4-205996 | Hilcorp Energy Company only | Finley-Webb (Lobo Cons) | Webb | 1 | 3.78K | 1.29M | Dec 2004 – Nov 2020 |
| South Callaghan Ranch G-4-235032 | Rosetta Resources Operating LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 3.55K | 371K | Dec 2007 – Apr 2012 |
| South Callaghan Ranch G-4-144337 | Aldine Oil and Gas, LP only | Small Cowboy (Lobo 6) | Webb | 1 | 3.52K | 3.06M | Jan 1993 – Apr 2026 |
| South Callaghan Ranch G-4-237497 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 3.48K | 446K | Apr 2008 – Apr 2026 |
| South Callaghan Ranch G-4-225685 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 3.46K | 616K | Feb 2007 – Apr 2026 |
| South Callaghan Ranch G-4-230569 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 3.38K | 639K | Aug 2007 – Apr 2026 |
| South Callaghan Ranch G-4-142539 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 3.35K | 2.47M | Jan 1993 – Apr 2026 |
| South Callaghan Ranch G-4-253512 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 3.34K | 815K | Sep 2009 – Apr 2026 |
| South Callaghan Ranch G-4-165991 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 3.25K | 1.6M | Dec 1997 – Apr 2026 |