| McLendon, J.A. G-6-173670 | Trivium Operating, LLC only | Willow Springs-Mackey (Tr. Pk.) | Gregg | 1 | 3.4K | 172K | Jun 1999 – Feb 2015 |
| Mackey 1-Mackey 2 (SA) G-13-259073 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 3.36K | 2.62M | Sep 2010 – Aug 2026 |
| W. L. Mackey GU 1 G-13-258651 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 3.35K | 1.95M | Jul 2010 – Aug 2026 |
| Mackey, W. L. GU 3 G-13-205840 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 3.25K | 1.93M | Nov 2004 – Aug 2026 |
| Castleberry G-6-93294 | Neches Exploration, L.L.C. only | Willow Springs-Mackey (Tr. Pk.) | Gregg | 1 | 3.06K | 784K | by Jan 1993 – Jan 2023 |
| Mackey, W.W. G-6-125780 | Long Trusts, The only | Willow Springs (Cotton Valley) | Gregg | 1 | 3.02K | 484K | by Jan 1993 – Jul 2026 |
| Mackey 2-Young (SA) "A" G-13-267116 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 2.9K | 4.42M | Jan 2012 – Aug 2026 |
| Flewellen G-6-283329 | Neches Exploration, L.L.C. only | Willow Springs-Mackey (Tr. Pk.) | Gregg | 1 | 2.73K | 398K | Jun 2017 – Jul 2026 |
| Mackey, L. L. G-6-182032 | Buffco Production Inc. only | Willow Springs (Cotton Valley) | Gregg | 1 | 2.08K | 367K | Mar 2001 – Oct 2023 |
| Mackey, W. L. GU 2 G-13-171997 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 2.01K | 743K | Jan 1999 – Dec 2022 |
| Hough-Mackey 4 (SA) 'A' G-13-269714 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 1.96K | 1.97M | Feb 2013 – Aug 2026 |
| South Ruth Mackey O-3-20079 | Texakoma Oil & Gas Corporation only | Serbin (Taylor Sand) | Bastrop | 3 | 1.82K | 3.09K | by Jan 1993 – Apr 1994 |
| Culpepper G-6-96872 | Cook Exploration Co. only | Willow Springs-Mackey (Tr. Pk.) | Gregg | 1 | 1.79K | 289K | Jun 1993 – Dec 2000 |
| Mackey, W. L. GU 3 G-13-206800 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 1.78K | 1.17M | Dec 2004 – Aug 2026 |
| Mackey Heirs G-6-180047 | Dallas Production, Inc. only | Willow Springs (Cotton Valley,w) | Gregg | 1 | 1.71K | 212K | Sep 2000 – Nov 2003 |
| Mackey, Bill G-6-96861 | Burk Royalty Company only | Willow Springs (Cotton Valley,w) | Gregg | 1 | 1.58K | 145K | by Jan 1993 – Sep 2000 |
| W. L. Mackey GU 3 G-13-254551 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 1.58K | 2.11M | Feb 2010 – Aug 2026 |
| Lawrence-Chevron Gas Unit G-6-131635 | Craton Operating LLC only | Willow Springs-Mackey (Tr. Pk.) | Gregg | 1 | 1.56K | 195K | by Jan 1993 – Dec 2024 |
| Mackey Prospect O-3-19988 | Texakoma Oil & Gas Corporation only | Serbin (Taylor Sand) | Bastrop | 1 | 1.33K | 5.39K | by Jan 1993 – Jun 1994 |
| Mackey Heirs G-6-195675 | Dallas Production, Inc. only | Willow Springs (T.peak Trans.) | Gregg | 1 | 1.3K | 188K | Jun 2003 – Oct 2004 |
| Stone Heirs O-6-12095 | Progas Properties, Inc. only | Willow Springs-Mackey (Tr. Pk.) | Gregg | 1 | 1.24K | 8.19K | by Jan 1993 – Dec 1995 |
| Mackey, W. L. GU 2 G-13-152124 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 1.19K | 362K | Nov 1994 – Nov 2013 |
| Mackey O-1-3878 | Ginco Operating Co. only | Darst Creek (Buda) | Guadalupe | 9 | 1.16K | 21 | by Jan 1993 – Nov 1995 |
| Mackey Heirs 'H' O-6-15273 | Dallas Production, Inc. only | Willow Springs (T.peak Trans.) | Gregg | 1 | 1.05K | 32.2K | Feb 2013 – Mar 2016 |
| Young-Mackey 4 (SA) 'A' G-13-269728 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 1.04K | 2.14M | Feb 2013 – Aug 2026 |
| Mackey, A. W. O-8-27790 | Stasney, H. R. & Sons, Ltd. only | Schkade (Caddo, Lower) | Shackelford | 1 | 1.02K | 8.42K | Feb 1996 – Oct 2001 |
| McKinley, J. C. "A" O-6-12378 | Bowles Energy, Inc. only | Willow Springs-Mackey (Tr. Pk.) | Gregg | 1 | 1K | 5.13K | by Jan 1993 – Dec 1994 |
| Mackey, W. C. G-6-185969 | Diversified Production LLC only | Glenwood (Cotton Valley) | Gregg | 1 | 940 | 232K | Oct 2001 – Feb 2026 |
| McLendon, J.A. Estate Unit O-6-10272 | Agate Petroleum, Inc. only | Willow Springs-Mackey (Tr. Pk.) | Gregg | 1 | 885 | 35.9K | by Jan 1993 – Jun 1999 |
| Casteberry G-6-105463 | Cook Exploration Co. only | Willow Springs-Mackey (Tr. Pk.) | Gregg | 1 | 639 | 57.1K | Jul 1993 – Jun 2009 |
| Mackey, L.L. O-6-16004 | Buffco Production Inc. only | Willow Springs (Travis Peak) | Gregg | 1 | 572 | 12K | Nov 2023 – Jun 2025 |
| Mackey G-6-229395 | Sydri Operating, LLC only | Oak Hill (Cotton Valley) | Gregg | 1 | 397 | 174K | May 2007 – Feb 2018 |
| McGrede G-6-283968 | Neches Exploration, L.L.C. only | Willow Springs-Mackey (Tr. Pk.) | Gregg | 1 | 335 | 62.6K | Feb 2018 – Aug 2026 |
| Mackey, L. L. Estate Unit G-6-73382 | Craton Operating LLC only | Willow Springs-Mackey (Tr. Pk.) | Gregg | 1 | 300 | 18.6K | by Jan 1993 – Jun 1994 |
| Mackey, Bill G-6-179879 | Enerquest Corporation only | Willow Springs (Travis Peak) | Gregg | 1 | 296 | 32.8K | Oct 2000 – Nov 2001 |
| Melton, L.L. Estate Gas Unit G-6-86182 | XTO Energy Inc. only | Willow Springs-Mackey (Tr. Pk.) | Gregg | 1 | 187 | 3.08K | by Jan 1993 – Aug 1999 |
| McMurrey Fee G-6-123716 | Kaiser-Francis Oil Company only | Willow Springs-Mackey (Tr. Pk.) | Gregg | 1 | 173 | 6.87K | by Jan 1993 – Mar 1993 |
| Mackey, W.L. GU 1 G-13-134506 | BKV Barnett, LLC only | Boonsville (Bend Congl., Gas) | Wise | 1 | 172 | 1.03M | by Jan 1993 – Aug 2026 |
| Mackey, W.W. et Al G-6-83728 | Long Trusts, The only | Willow Springs-Mackey (Tr. Pk.) | Gregg | 1 | 158 | 6.05K | by Jan 1993 – Feb 2003 |
| George Mackey O-1-19063 | Multipay Energy, Inc. only | Riddle | Caldwell | 1 | 127 | 0 | May 2021 – Aug 2026 |
| Mackey O-10-36148 | Byrd Operating Company only | Warfield (Wolfcamp) | Midland | 1 | 124 | 129 | Nov 1999 – Nov 1999 |
| McGrede G-6-105585 | Cook Exploration Co. only | Willow Springs-Mackey (Tr. Pk.) | Gregg | 1 | 123 | 3.24K | Mar 1993 – Nov 1996 |
| Mackey, W. L. GU 2 G-13-163879 | BKV Barnett, LLC only | Boonsville (Bend Congl., Gas) | Wise | 1 | 100 | 44.5K | May 1997 – Aug 1998 |
| Magrill O-6-12348 | Machin & Associates, Inc. only | Willow Springs-Mackey (Tr. Pk.) | Gregg | 1 | 92 | 359 | by Jan 1993 – Mar 1993 |
| Mackey, A. W. O-8-3270 | Ruff Oil Co. only | Shackelford County Regular | Shackelford | 4 | 88 | 21 | by Jan 1993 – Feb 2000 |
| Mackey, A. W., -B- O-8-8945 | Satterwhite Oil Company only | Shackelford County Regular | Shackelford | 3 | 63 | 6 | Feb 1993 – Jul 1993 |
| L. L. Mackey Estate Unit O-6-12948 | Sonat Exploration Company -Tyler only | Willow Springs-Mackey (Tr. Pk.) | Gregg | 1 | 61 | 2.72K | by Jan 1993 – Nov 1993 |
| Sumner-Mackey O-8-23451 | Satterwhite Oil Company only | Shackelford County Regular | Shackelford | 2 | 60 | 6 | Feb 1993 – Jul 1993 |
| Mackey A O-6-15586 | Gaines Operating, LLC only | Marion County (Shallow) | Marion | 1 | 60 | 0 | Jan 2018 – Jul 2022 |
| Mackey, W. L. GU 4 G-13-91362 | BKV Barnett, LLC only | Boonsville (Bend Congl., Gas) | Wise | 1 | 60 | 266K | by Jan 1993 – Aug 2026 |