| Pillans G-8-132938 | D.J. & T. Energy only | Callahan County Regular (Gas) | Callahan | 1 | 0 | 22.4K | by Jan 1993 – Aug 2016 |
| Davis, J. T. Estate G-8-138030 | Sequoia Fossil Fuels, Inc. only | Callahan County Regular | Callahan | 1 | 0 | 5 | Aug 1997 – Aug 1997 |
| Townsen A2 O-10-58775 | Callon (Permian) LLC only | Phantom (Wolfcamp) | Reeves | 1 | 0 | 0 | — |
| Roil North Unit G-8-138534 | Klingberg, Roger only | Callahan County Regular (Gas) | Callahan | 1 | 0 | 0 | — |
| Alexander G-8-139365 | Fidelity American Oil & Gas,inc. only | Callahan County Regular (Gas) | Callahan | 1 | 0 | 0 | — |
| South Callaghan Ranch G-4-148490 | Rosetta Resources Operating LP only | Callaghan, N. (Lobo Stray) | Webb | 1 | 0 | 40.5K | Nov 1993 – Jun 2003 |
| South Callaghan Ranch G-4-195174 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 300K | May 2003 – Jul 2005 |
| St. Clair Unit 2827 O-10-50659 | Callon (Permian) LLC only | Phantom (Wolfcamp) | Reeves | 1 | 0 | 0 | — |
| Crowley 7527 Alloc. A O-10-50212 | Callon (Permian) LLC only | Phantom (Wolfcamp) | Reeves | 1 | 0 | 0 | — |
| South Callaghan Ranch G-4-147791 | Rosetta Resources Operating LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 189K | Dec 1993 – Jul 1995 |
| South Callaghan Ranch G-4-147739 | Rosetta Resources Operating LP only | Dos Payasos (Wilcox 5100) | Webb | 1 | 0 | 3.55K | by Jan 1993 – Feb 1993 |
| South Callaghan Ranch G-4-147688 | Rosetta Resources Operating LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 1.48M | Dec 1993 – Oct 2007 |
| Crowley Unit 7558 O-10-50124 | Callon (Permian) LLC only | Phantom (Wolfcamp) | Reeves | 2 | 0 | 0 | — |
| Calloway "W" G-8-139445 | Lawrence Energy Company only | Brown County Regular | Brown | 1 | 0 | 2.31K | by Jan 1993 – Jul 2009 |
| South Callaghan Ranch G-4-146489 | Mobil Producing TX. & N.M. Inc. only | Beccero Creek (Lobo 2) | Webb | 1 | 0 | 317K | Jul 1993 – Dec 1993 |
| Shrader, Hugh G-8-141640 | Fidelity American Oil & Gas,inc. only | Callahan County Regular | Callahan | 1 | 0 | 0 | — |
| Callaghan Ranch G-4-146354 | Mobil Producing TX. & N.M. Inc. only | Finley-Webb (5200) | Webb | 1 | 0 | 261K | Jul 1993 – Aug 1998 |
| Callaway G-8-142753 | Southeastern Resources Corp. only | Stephens County Regular (Gas) | Stephens | 1 | 0 | 8.63K | by Jan 1993 – Aug 1997 |
| South Callaghan Ranch G-4-146071 | Rosetta Resources Operating LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 780K | Jun 1993 – Oct 1997 |
| South Callaghan Ranch G-4-145805 | Calpine Natural Gas L.P. only | Benavides (Lobo Cons.) | Webb | 1 | 0 | 0 | — |
| Parker G-8-143646 | Dudley Drilling, Inc. only | Callahan County Regular (Gas) | Callahan | 1 | 0 | 0 | — |
| Peacemaker SWD O-10-44780 | Callon Petroleum Operating Co only | Spraberry (Trend Area) | Martin | 1 | 0 | 0 | — |
| Straley-Schkade Unit G-8-143648 | Neeb, Harry L. Estate only | Callahan County Regular (Gas) | Callahan | 1 | 0 | 3.36K | by Jan 1993 – Sep 1993 |
| Shirly Newton O-10-44129 | Callon Petroleum Operating Co only | Spraberry (Trend Area) | Borden | 1 | 0 | 0 | — |
| Williams, L. L. G-8-144785 | Sequoia Fossil Fuels, Inc. only | Callahan County Regular | Callahan | 1 | 0 | 4.54K | Mar 1993 – Feb 1996 |
| South Callaghan Ranch G-4-145735 | Rosetta Resources Operating LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 145K | May 1993 – Oct 1997 |
| South Callaghan Ranch G-4-223921 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 80.8K | Nov 2006 – Feb 2007 |
| South Callaghan Ranch G-4-145689 | Rosetta Resources Operating LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 3.44K | by Jan 1993 – May 1993 |
| Williams, L. L. G-8-144786 | Sequoia Fossil Fuels, Inc. only | Callahan County Regular | Callahan | 1 | 0 | 3.5K | Mar 1993 – Nov 1995 |
| Callaghan Ranch G-4-145653 | Chesapeake Operating, Inc. only | Finley-Webb (Upper Cons) | Webb | 1 | 0 | 234K | Apr 1993 – Sep 1995 |
| Captain Call O-10-42029 | COG Operating LLC only | Sandbar (Bone Spring) | Culberson | 3 | 0 | 0 | — |
| Mayes, J. G-8-148781 | Gaylyn, Inc. only | Callahan County Regular | Callahan | 1 | 0 | 0 | — |
| Mitcham, G. P. G-8-152276 | Hess, Jerry Operating Co. only | Callahan County Regular | Callahan | 1 | 0 | 14.4K | Nov 1994 – Jul 1997 |
| Finley 75 G-8-153497 | Charter Petroleum Company only | Callahan County Regular (Gas) | Callahan | 1 | 0 | 41.1K | Mar 1995 – Jun 1998 |
| South Callaghan Ranch G-4-144947 | Mobil Producing TX. & N.M. Inc. only | Beccero Creek (Lobo 6) | Webb | 1 | 0 | 40.6K | Mar 1993 – May 1993 |
| South Callaghan Ranch G-4-230758 | Aldine Oil and Gas, LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 125K | Jul 2007 – Sep 2007 |
| Beaurline, A.W. G-4-231249 | Gn&j LLC only | McAllen Ranch (Vksbg L-V, N Cons | Hidalgo | 1 | 0 | 6.79K | Sep 2007 – Mar 2022 |
| South Callaghan Ranch G-4-144933 | Rosetta Resources Operating LP only | Callaghan (Wilcox) | Webb | 1 | 0 | 1.12M | Mar 1993 – Jun 2003 |
| Foster, Nathan G-8-155320 | J R Investments only | Callahan County Regular (Gas) | Callahan | 1 | 0 | 0 | — |
| Evans, C. E. G-8-156019 | Window Operating Co., The only | Callanan (Morris) | Coleman | 1 | 0 | 157K | Dec 1995 – Mar 2010 |
| Coots, Bill G-8-159579 | Production Marketing Assoc Inc only | Callahan County Regular (Gas) | Callahan | 1 | 0 | 19.2K | Dec 1995 – Aug 1997 |
| South Callaghan Ranch G-4-144932 | Mobil Producing TX. & N.M. Inc. only | Beccero Creek (Lobo 6) | Webb | 1 | 0 | 110K | Mar 1993 – Aug 1993 |
| Coots G-8-159970 | Production Marketing Assoc Inc only | Callahan County Regular (Gas) | Callahan | 1 | 0 | 43K | Jul 1995 – Jul 1996 |
| South Callaghan Ranch G-4-144880 | Mobil Producing TX. & N.M. Inc. only | Beccero Creek (Lobo 6) | Webb | 1 | 0 | 59.5K | by Jan 1993 – Mar 1995 |
| Ramsey, E.V. G-8-170646 | Sabre Oil and Gas Corp. only | Callahan County Regular | Callahan | 1 | 0 | 796 | Sep 1998 – Oct 1998 |
| South Callaghan Ranch G-4-144615 | Rosetta Resources Operating LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 742K | Mar 1993 – Apr 2006 |
| Callie "42-B" O-10-38560 | H2O Midstream Permian LLC only | Silver Queen (Penn-Canyon) | Howard | 1 | 0 | 0 | — |
| South Callaghan Ranch G-4-144574 | Rosetta Resources Operating LP only | Callaghan, N. (Wilcox, Lo.) | Webb | 1 | 0 | 1.7M | Feb 1993 – Jul 2004 |
| South Callaghan Ranch G-4-144573 | Rosetta Resources Operating LP only | Beccero Creek (Lobo Cons.) | Webb | 1 | 0 | 666K | Feb 1993 – Apr 1995 |
| Isenhower G-8-176079 | Neumann Ventures, Inc. only | Callahan County Regular | Callahan | 1 | 0 | 0 | — |