| Williams Estate O-3-21994 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Fayette | 2 | 517K | 1.37M | Apr 1993 – Apr 2016 |
| Maude Williams et al 'A' O-2-11339 | Hilcorp Energy Company only | Lake Pasture (FS-503) | Refugio | 2 | 183K | 400K | Mar 2017 – Apr 2026 |
| DBM O-8-24527 | Boyd & McWilliams Energy Group only | Juliana | Haskell | 1 | 173K | 28.3K | Jan 1993 – Oct 2020 |
| Hoblit-Jacobs Et O-9-8519 | Boyd & McWilliams Energy Group only | Allen Hill (Strawn) | Tom Green | 5 | 171K | 872K | Jan 1993 – May 2011 |
| Cassle O-8-28224 | Boyd & McWilliams Energy Group only | Pardue (Ellenburger) | Fisher | 2 | 128K | 65.3K | Aug 1997 – Apr 2026 |
| TXL O-10-6867 | Boyd & McWilliams Energy Group only | Tunstill | Reeves | 2 | 85.2K | 218 | Jan 1993 – Apr 2026 |
| Lopez Creek O-9-14469 | Boyd & McWilliams Energy Group only | Sugg-Irion (Wolfcamp) | Irion | 2 | 77.5K | 233K | Oct 1996 – Mar 2012 |
| Wallace "C" O-11-19656 | Boyd & McWilliams Energy Group only | Clairemont, East (Strawn) | Kent | 1 | 75.6K | 259 | Jan 1993 – Apr 2015 |
| Hoy Estate O-8-27736 | Boyd & McWilliams Energy Group only | Gloria Gay, W. (Ellen.) | Stonewall | 1 | 65.2K | 24.1K | Jan 1996 – Mar 2012 |
| Cassle O-8-30867 | Boyd & McWilliams Energy Group only | Pardue (Canyon) | Fisher | 1 | 65.1K | 26.5K | Oct 2011 – Apr 2026 |
| Maude Williams et al "C" O-2-9440 | Hilcorp Energy Company only | Tom Oconnor (5800) | Refugio | 1 | 64.8K | 38.3K | Jun 2010 – Jul 2016 |
| Beckham -9- O-10-32051 | Boyd & McWilliams Energy Group only | Scott (Delaware) | Reeves | 1 | 46.3K | 30.1K | Jan 1993 – May 2014 |
| Williams et Al O-11-60482 | Boaz Energy II Operating, LLC only | Prentice, NW. (San Andres) | Terry | 1 | 42.2K | 27.7K | Jan 1993 – Feb 2020 |
| McLaughlin O-8-28951 | Boyd & McWilliams Energy Group only | JMM (Canyon) | Nolan | 1 | 40.1K | 370K | Mar 2001 – Jul 2014 |
| Maude Williams et al 'A' O-2-11337 | Hilcorp Energy Company only | Tom O'Connor (5350 Sand) | Refugio | 2 | 35.9K | 2.18K | Jul 2016 – Jun 2023 |
| Cassle, H. O. O-8-1858 | Boyd & McWilliams Energy Group only | Pardue (Swastika) | Fisher | 10 | 32.8K | 25.4K | Jan 1993 – Mar 2002 |
| Perkins O-10-32761 | Boyd & McWilliams Energy Group only | Scott (Delaware) | Reeves | 2 | 29.3K | 21 | Jan 1993 – May 2014 |
| Jewell Williams et Al O-10-30643 | Lemon, Richard F. Jr. only | Knott, SE. (Wolfcamp) | Howard | 1 | 28.1K | 21 | Jan 1993 – Apr 2007 |
| Maude Williams et al 'A' O-2-10422 | Hilcorp Energy Company only | Lake Pasture (FT-585) | Refugio | 2 | 26.4K | 93.3K | Dec 2012 – Nov 2024 |
| Tom White -105- O-10-31780 | Boyd & McWilliams Energy Group only | Pitzer, S. (Delaware) | Ward | 1 | 25.6K | 180K | Jan 1993 – Dec 2023 |
| Hooks, A. J. A. O-10-37088 | Boyd & McWilliams Energy Group only | Howard-Glasscock (Glorieta) | Howard | 2 | 25.1K | 0 | Apr 2003 – Nov 2011 |
| Williams E "A" O-6-14205 | Linder, John Operating Co., LLC only | Chapel Hill (Travis Peak) | Smith | 1 | 24.6K | 102K | Feb 2003 – Apr 2026 |
| Koenig, Edward F G-2-107713 | Boyd & McWilliams Energy Group only | Cuero, S (Blk. 111 10,000) | De Witt | 1 | 23.6K | 1.22M | Jan 1993 – Apr 2020 |
| Welch Unit O-10-33736 | Boyd & McWilliams Energy Group only | Spraberry (Trend Area) | Midland | 1 | 23.4K | 31.2K | Mar 1993 – Apr 2004 |
| Hooks, A. J. A. O-10-41032 | Boyd & McWilliams Energy Group only | Howard Glasscock (Consolidated) | Howard | 2 | 22.3K | 0 | Dec 2011 – Apr 2026 |
| Wheeler, A. E. -A- O-10-37435 | Boyd & McWilliams Energy Group only | Wheeler (Wichita-Albany) | Winkler | 2 | 19.7K | 29.2K | Jan 2005 – Feb 2024 |
| Lopez Creek O-9-9381 | Boyd & McWilliams Energy Group only | Rock Pen (Canyon) | Irion | 9 | 18.8K | 425K | Jan 1993 – May 2022 |
| Plow, Patricia 'A' O-10-37718 | Boyd & McWilliams Energy Group only | Breedlove "B" (Clearfork) | Martin | 1 | 17.9K | 8.86K | Jan 2006 – Sep 2006 |
| Maude Williams et al 'B' O-2-11161 | Hilcorp Energy Company only | Tom Oconnor (5500 Sand) | Refugio | 3 | 17.1K | 8.96K | Nov 2015 – Nov 2023 |
| Wallace "D" O-11-60029 | Boyd & McWilliams Energy Group only | Clairemont, East (Strawn) | Kent | 1 | 16.2K | 293 | Jan 1993 – Dec 2005 |
| University 6-1 O-9-13904 | Boyd & McWilliams Energy Group only | Spraberry (Trend Area) | Reagan | 1 | 15.5K | 53.9K | Nov 1995 – Feb 2022 |
| Hooks, A. J. O-10-37037 | Boyd & McWilliams Energy Group only | Howard-Glasscock (Glorieta) | Howard | 1 | 15K | 0 | Feb 2003 – Nov 2011 |
| Hughey O-11-66097 | Boyd & McWilliams Energy Group only | Littlefield, S. (San Andres) | Lamb | 1 | 14K | 21 | Jan 1993 – Apr 2002 |
| Maude Williams et al 'A' O-2-10857 | Hilcorp Energy Company only | Lake Pasture (FT-750) | Refugio | 1 | 13.1K | 15.9K | Sep 2014 – Aug 2015 |
| Hooks, A. J. O-10-41033 | Boyd & McWilliams Energy Group only | Howard Glasscock (Consolidated) | Howard | 6 | 12.7K | 0 | Dec 2011 – Apr 2026 |
| Lopez Creek O-9-17033 | Boyd & McWilliams Energy Group only | Lucky Mag (Consolidated) | Irion | 2 | 12.5K | 198K | Sep 2009 – Feb 2022 |
| Maude Williams et al -A- O-2-11162 | Hilcorp Energy Company only | Tom Oconnor (5200, East) | Refugio | 1 | 10.2K | 2.91K | Dec 2015 – Apr 2026 |
| McLaughlin O-8-18058 | Boyd & McWilliams Energy Group only | JMM (Canyon) | Nolan | 2 | 9.98K | 69.1K | Jan 1993 – Sep 1996 |
| Hooks, A. J. O-10-17466 | Boyd & McWilliams Energy Group only | Howard Glasscock | Howard | 7 | 9.71K | 21 | Jan 1993 – Nov 2011 |
| Wheeler, A. E. -A- O-10-27980 | Boyd & McWilliams Energy Group only | Wheeler (Devonian) | Winkler | 2 | 9.55K | 99.6K | Jan 1993 – Dec 2000 |
| Teague O-8-29865 | Boyd & McWilliams Energy Group only | Tolar (Canyon) | Fisher | 2 | 8.62K | 42.4K | Jan 2007 – Jan 2009 |
| Wilde O-9-12371 | Boyd & McWilliams Energy Group only | Spraberry (Trend Area) | Upton | 1 | 8.39K | 20.2K | Jan 1993 – Apr 1998 |
| Powell, Virgil J. Tr. B O-9-9462 | Boyd & McWilliams Energy Group only | Tillery (Canyon, Upper) | Schleicher | 1 | 6.4K | 9.7K | Jan 1993 – May 2000 |
| Cassle, H. O. O-8-10907 | Boyd & McWilliams Energy Group only | Pardue (Flippen) | Fisher | 3 | 4.83K | 951 | Jul 1995 – Aug 1997 |
| Lopez Creek O-9-16848 | Boyd & McWilliams Energy Group only | Lucky-Mag (Divide Sand) | Irion | 1 | 4.57K | 14K | Feb 2009 – Aug 2009 |
| Maude Williams et al 'A' O-2-10985 | Hilcorp Energy Company only | Lake Pasture (FS-550) | Refugio | 2 | 4.26K | 13.7K | Jul 2015 – Jun 2018 |
| Williams, Troy O-9-2064 | Williams Enterprises only | Vaughn | Crockett | 1 | 4.12K | 102 | Jan 1993 – Mar 2015 |
| Williams Estate G-6-131957 | Comstock Oil & Gas, LP only | Waskom (Cotton Valley) | Harrison | 1 | 4.07K | 959K | Jan 1993 – Aug 2010 |
| Hooks, A. J. -A- O-10-17873 | Boyd & McWilliams Energy Group only | Howard Glasscock | Howard | 2 | 3.8K | 2 | Mar 1993 – Dec 2005 |
| Maude Williams et al 'A' O-2-11312 | Hilcorp Energy Company only | Lake Pasture (FT-750) | Refugio | 1 | 3.64K | 16.8K | Oct 2016 – Jul 2017 |