| Williams G-3-140047 | Hilcorp Energy Company only | Vidor Ames (Yegua EY) | Orange | 1 | 1.01M | 5.96M | Jan 1993 – Dec 2007 |
| Williams State 1-38 Unit G-10-291844 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Reeves | 1 | 507K | 1.82M | Dec 2020 – Apr 2026 |
| Elta Williams G-3-272445 | Zarvona Energy LLC only | Beech Grove (Woodbine) | Jasper | 1 | 496K | 2.8M | Dec 2012 – Apr 2026 |
| Williams State 1-38 Unit G-10-291838 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Reeves | 1 | 441K | 1.83M | Dec 2020 – Apr 2026 |
| Williams State 1-38 Unit G-10-291839 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Reeves | 1 | 426K | 1.79M | Dec 2020 – Apr 2026 |
| Williamsburg 54-4-5 G-10-283125 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Reeves | 1 | 402K | 1.61M | Feb 2019 – Apr 2026 |
| Ulrich a - Williams a SA 1 G-2-291089 | Devon Energy Production Co, L.P. only | Eagleville (Eagle Ford-2) | De Witt | 1 | 357K | 1.66M | Jul 2021 – Apr 2026 |
| Williams G-3-254819 | Hilcorp Energy Company only | Vidor Ames (Yegua EY) | Orange | 1 | 349K | 2.75M | Nov 2009 – Apr 2026 |
| Evan Williams 23-13W Unit G-10-289568 | Permian Resources Operating, LLC only | Phantom (Wolfcamp) | Reeves | 1 | 349K | 2.88M | Nov 2019 – Apr 2026 |
| Williams 4-53 G-10-287955 | Permian Resources Operating, LLC only | Phantom (Wolfcamp) | Reeves | 1 | 268K | 3.16M | Apr 2016 – Apr 2026 |
| Williams G-3-145916 | Hilcorp Energy Company only | Vidor Ames (Yegua EY) | Orange | 1 | 234K | 1.25M | May 1993 – Jul 2010 |
| Williams G-3-272436 | Hilcorp Energy Company only | Vidor Ames (Yegua EY) | Orange | 1 | 230K | 1.18M | May 2013 – Apr 2026 |
| Williams, E. F. et Al G-3-127221 | Hilcorp Energy Company only | Doty, SE (Vicksburg) | Orange | 1 | 161K | 4.18M | Jan 1993 – Dec 2024 |
| Williams G-3-278960 | Hilcorp Energy Company only | Vidor Ames (Yegua EY) | Orange | 1 | 148K | 379K | Dec 2014 – Feb 2020 |
| Williams 4-53 G-10-276433 | Permian Resources Operating, LLC only | Phantom (Wolfcamp) | Reeves | 1 | 141K | 2.75M | Jul 2015 – Apr 2026 |
| Williams A G-2-281965 | Devon Energy Production Co, L.P. only | Eagleville (Eagle Ford-2) | De Witt | 1 | 141K | 702K | Oct 2012 – Apr 2026 |
| Williams A G-2-263755 | Devon Energy Production Co, L.P. only | Eagleville (Eagle Ford-2) | De Witt | 1 | 114K | 585K | Nov 2011 – Apr 2026 |
| McWilliams, J Gas Unit G-6-268276 | TGNR East Texas LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 101K | 4.37M | Nov 2012 – Apr 2026 |
| Williams G-3-143403 | Rme Petroleum Company only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 100K | 2.51M | Jan 1993 – Mar 2002 |
| Williams G-3-270207 | Hilcorp Energy Company only | Vidor Ames (Yegua EY) | Orange | 1 | 89.3K | 372K | Mar 2013 – Apr 2026 |
| Arhopulos-Brazos Unit G-3-144778 | Williams, Clayton Energy, Inc. only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 84.9K | 2.42M | Mar 1993 – Jul 2013 |
| Williamson G-3-176024 | Timberwolf Energy, Inc. only | Angleton, S. (F-4 FB-AZ) | Brazoria | 1 | 84.2K | 3.1M | Jan 2000 – Mar 2026 |
| Williams 33 G-14-253941 | Presidio Petroleum LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 78.7K | 3.2M | Jul 2009 – Apr 2026 |
| Williams Farm 196C G-14-288092 | Unbridled Resources, LLC only | Lipscomb (Cleveland) | Lipscomb | 1 | 71.6K | 676K | Jul 2019 – Apr 2026 |
| Williams Farm 196B G-14-288068 | Unbridled Resources, LLC only | Lipscomb (Cleveland) | Lipscomb | 1 | 71.4K | 658K | Jul 2019 – Apr 2026 |
| Williams Farm 196A G-14-288094 | Unbridled Resources, LLC only | Lipscomb (Cleveland) | Lipscomb | 1 | 69.3K | 650K | Jul 2019 – Apr 2026 |
| Aline Williams Unit B G-1-265483 | Crescent Energy Operating, LLC only | Indio Tanks (Pearsall) | Frio | 1 | 66.7K | 860K | Oct 2011 – Apr 2026 |
| Williams A-Tatum A G-6-293841 | Diversified Production LLC only | Carthage (Cotton Valley) | Rusk | 1 | 65.8K | 2.41M | Jul 2022 – Apr 2026 |
| Williams, T.G. et Al G-6-139676 | Buffco Production Inc. only | Lansing, North (Travis Peak) | Gregg | 1 | 61.8K | 835K | Jan 1993 – Apr 2026 |
| Williams-Chumley GU G-6-267808 | Sheridan Production Co III, LLC only | Angie (James Lime) | San Augustine | 1 | 52.6K | 1.08M | Jan 2013 – Apr 2026 |
| Jackson-Williams G-2-163085 | Contango Resources, Inc. only | Morales, E. (Wilcox) | Jackson | 1 | 47.2K | 4.78M | Nov 1996 – Jun 2014 |
| Williams 33 G-14-259432 | Presidio Petroleum LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 45.9K | 2.35M | Sep 2010 – Apr 2026 |
| Arhopulos, T. J. G-3-146617 | Williams, Clayton Energy, Inc. only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 45.8K | 1.07M | Jul 1993 – Jul 2013 |
| Williams 33 G-14-208704 | Presidio Petroleum LLC only | Allison-Britt (12350) | Wheeler | 1 | 44.8K | 1.04M | Feb 2005 – Feb 2013 |
| Williams, E., Unit G-10-41626 | Permian Resources Operating, LLC only | Lockridge (Ellenburger 18600) | Ward | 1 | 43.9K | 33.5M | Jan 1993 – Mar 2026 |
| Williams, Glen Estate Gas Unit G-6-268105 | TGNR East Texas LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 41.4K | 4.16M | Mar 2013 – Apr 2026 |
| Williams 83 G-14-281286 | BE Anadarko II, LLC only | Pan Petro (Cleveland) | Ochiltree | 1 | 38.4K | 239K | May 2015 – Apr 2026 |
| Williamson, et Al G-3-193463 | Timberwolf Energy, Inc. only | Angleton, South (12,100 Frio) | Brazoria | 1 | 38K | 1.16M | Nov 2002 – Mar 2026 |
| Williams 33 G-14-209432 | Presidio Petroleum LLC only | Allison-Britt (12350) | Wheeler | 1 | 36.9K | 820K | Mar 2005 – May 2017 |
| Williams G-2-203882 | C & E Operating, Inc. only | George Duncan (Melbourne J-1, A) | Calhoun | 1 | 31.5K | 500K | Sep 2002 – Nov 2005 |
| Williams, T.G. et Al G-6-139856 | Buffco Production Inc. only | Lansing, North (Travis Peak) | Gregg | 1 | 30.3K | 746K | Jan 1993 – Apr 2026 |
| Williams G-2-224928 | Magnum Producing, LP only | Morales, N. (9250) | Jackson | 1 | 30.1K | 245K | Dec 2006 – Apr 2017 |
| Williamson G-6-209230 | Diversified Production LLC only | Carthage (Cotton Valley) | Panola | 1 | 30K | 1.9M | Jan 2005 – Apr 2026 |
| McWilliams, J. Gas Unit G-6-267425 | TGNR East Texas LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 29.7K | 2.48M | Jun 2012 – Apr 2026 |
| Williams, Henry Gas Unit G-5-141886 | Old Union Operating Company only | Teas (Cotton Valley) | Freestone | 1 | 28.5K | 1.3M | Jan 1993 – Apr 2026 |
| Williamson, Stanley H. G-4-145890 | EOG Resources, Inc. only | Cinco Compadres (Lobo) | Webb | 1 | 26.6K | 4.3M | Feb 1993 – Mar 2011 |
| Williams, A. C. G-6-15896 | 84 Energy LLC only | Cayuga (Trinity) | Anderson | 1 | 26.4K | 549K | Jan 1993 – Dec 2025 |
| Williams 33 G-14-196432 | Presidio Petroleum LLC only | P.C.X. (Granite Wash) | Wheeler | 1 | 25.1K | 847K | Jul 2003 – Jul 2024 |
| Williams-Ingram G-6-127550 | Diversified Production LLC only | Carthage (Cotton Valley) | Panola | 1 | 25K | 1.35M | Jan 1993 – Apr 2026 |
| Williams B G-2-267042 | Devon Energy Production Co, L.P. only | De Witt (Eagle Ford Shale) | De Witt | 1 | 24.5K | 621K | Dec 2011 – Apr 2026 |