| Dunlap Unit G-3-148839 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 90.2K | 7.68M | Mar 1994 – Feb 2026 |
| Kim Unit #3 O-3-24396 | Bexco Operating, Inc. only | Giddings (Buda) | Brazos | 1 | 89.8K | 95.6K | Jun 2003 – Apr 2009 |
| Newberry O-3-20631 | Wildfire Energy Operating LLC only | Caldwell (Austin Chalk) | Brazos | 4 | 88.8K | 99.4K | Jan 1993 – Dec 2002 |
| Moore, Robert Estate G-3-157898 | Verdun Oil & Gas LLC only | Clay, NE (Austin Chalk 11350) | Brazos | 1 | 88.2K | 2.21M | Feb 1996 – Apr 2026 |
| Varisco, Antoni O-3-20527 | Wildfire Energy Operating LLC only | Kurten (Austin Chalk) | Brazos | 1 | 88.1K | 163K | Jan 1993 – Mar 2026 |
| Bukowski-Bienski Unit O-3-23883 | Wildfire Energy Operating LLC only | Giddings (Buda) | Brazos | 1 | 87.9K | 241K | Jun 2000 – Jan 2021 |
| Valley Ridge Unit O-3-18048 | Rumble Energy LLC only | Aggieland (Woodbine) | Brazos | 1 | 87.6K | 899K | Jan 1993 – Apr 2026 |
| Stringfellow Unit O-3-17760 | Redbud E & P, Inc. only | Kurten (Buda) | Brazos | 2 | 86.1K | 12 | Jan 1993 – Apr 2026 |
| Cox Unit 1 O-3-17133 | Chaparral Energy, L.L.C. only | Iola, South (Sub-Clarksville) | Brazos | 2 | 85.1K | 232K | Jan 1993 – Apr 2011 |
| 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 |
| Scasta Unit O-3-21259 | Wildfire Energy Operating LLC only | Kurten (Buda) | Brazos | 1 | 84.1K | 19.3K | Jan 1993 – Feb 2022 |
| Olden-Olden Unit O-3-21711 | Enervest Operating, L.L.C. only | Giddings (Austin Chalk-3) | Brazos | 1 | 84K | 1.31M | Jan 1993 – Jan 2013 |
| Windy Hill Ranch B O-3-24662 | Northfield Enterprises, Inc. only | Giddings (Austin Chalk-3) | Brazos | 1 | 83.8K | 23K | Aug 2004 – Jan 2026 |
| Bookman Peters O-3-25385 | South Texas Operating Company only | Giddings (Austin Chalk-3) | Brazos | 1 | 83.2K | 0 | Feb 2009 – Mar 2026 |
| J. Anthony O-3-21495 | Apache Corporation only | Giddings (Austin Chalk-3) | Brazos | 1 | 82.7K | 223K | Jan 1993 – Feb 2007 |
| Liz O-3-25343 | Wildfire Energy Operating LLC only | Giddings (Buda) | Brazos | 1 | 82.4K | 948K | Mar 2009 – Mar 2026 |
| Orca Unit O-3-24210 | Anadarko E&P Company LP only | Giddings (Buda) | Brazos | 1 | 81.9K | 98.8K | Nov 2001 – May 2003 |
| Dansby Heirs Unit 'A' O-3-21945 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 81.6K | 123K | Jan 1993 – Aug 2025 |
| Carroll Unit O-3-23975 | CML Exploration, LLC only | Kurten (Buda) | Brazos | 1 | 81.3K | 747K | Feb 2001 – Apr 2026 |
| Sowell Unit G-3-149587 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 81.3K | 4.95M | May 1994 – Apr 2026 |
| Brazos Coal Ltd.-Raceway Ut. O-3-21668 | Enervest Operating, L.L.C. only | Giddings (Austin Chalk-3) | Brazos | 1 | 81.2K | 679K | Jan 1993 – Jan 2013 |
| Williams Minerals B O-3-26322 | Wildfire Energy Operating LLC only | Giddings (Buda) | Brazos | 1 | 80.7K | 35K | Dec 2012 – Mar 2026 |
| Barrera O-3-22086 | Endeavor Energy Resources L.P. only | Giddings (Austin Chalk-3) | Brazos | 1 | 80.2K | 571K | May 1993 – Nov 2016 |
| Walker, Mary O-3-21659 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 79.2K | 604K | Jan 1993 – Jul 2021 |
| Harriman O-3-25960 | Wildfire Energy Operating LLC only | Giddings (Buda) | Brazos | 1 | 79.1K | 45.3K | Apr 2011 – Oct 2022 |
| Conlee O-3-21136 | WCS Oil and Gas Corporation only | Giddings (Austin Chalk-3) | Brazos | 2 | 79.1K | 348K | Jan 1993 – Aug 2001 |
| Reed-Newberry O-3-19180 | Endeavor Energy Resources L.P. only | Caldwell, NE (Georgetown) | Brazos | 1 | 78.1K | 78.7K | Jan 1993 – Jul 2007 |
| Moon Unit G-3-153168 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 78K | 5.57M | Dec 1994 – Apr 2026 |
| College Hills Unit O-3-21584 | Anadarko E&P Company LP only | Giddings (Austin Chalk-3) | Brazos | 2 | 78K | 365K | Jan 1993 – Apr 2003 |
| Hullabaloo O-3-25251 | Wildfire Energy Operating LLC only | Giddings (Eagleford) | Brazos | 1 | 77.8K | 79.2K | Nov 2008 – Mar 2026 |
| McCullough-Terry Unit O-3-22138 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 77K | 1.02M | Jul 1993 – Oct 2018 |
| Grant O-3-23533 | Union Pacific Resources Company only | Giddings (Buda) | Brazos | 1 | 77K | 90.7K | Sep 1997 – Sep 1998 |
| Wickson Unit O-3-23454 | CML Exploration, LLC only | Iola (Georgetown) | Brazos | 1 | 75.5K | 376K | Feb 1998 – Apr 2024 |
| Porterfield B O-3-28260 | Wildfire Energy Operating LLC only | Giddings (Eagleford) | Brazos | 1 | 75.3K | 30.2K | Jan 2026 – Mar 2026 |
| Neptune O-5-4495 | Wildfire Energy Operating LLC only | Aguila Vado (Eagleford) | Brazos | 1 | 74.8K | 35.1K | Jan 2026 – Mar 2026 |
| Morgan O-3-21897 | Williams, Clayton Energy, Inc. only | Giddings (Austin Chalk-3) | Brazos | 2 | 74.5K | 471K | Jan 1993 – May 2013 |
| Buchanan, Raymond O-3-11582 | Wildfire Energy Operating LLC only | Kurten (Woodbine) | Brazos | 2 | 74.5K | 67.2K | Jan 1993 – May 2023 |
| JB O-3-21382 | Northfield Enterprises, Inc. only | Kurten (Buda) | Brazos | 1 | 74.3K | 62.3K | Jan 1993 – Jun 2022 |
| Redbud Unit O-3-25802 | South Texas Operating Company only | Giddings (Austin Chalk-3) | Brazos | 1 | 73.9K | 18K | Feb 2011 – Mar 2026 |
| Bright Sky Ranch O-3-25588 | South Texas Operating Company only | Giddings (Austin Chalk-3) | Brazos | 1 | 73.8K | 27.4K | Jun 2010 – Apr 2026 |
| Honey "A" O-3-24730 | Centex Energy, LLC only | Kurten (Buda) | Brazos | 1 | 73.7K | 221K | Jun 2005 – Feb 2013 |
| Weedon-Weedon 'a' Unit O-3-21723 | 7711 Corporation, The only | Giddings (Austin Chalk-3) | Brazos | 1 | 73.1K | 530K | Jan 1993 – Dec 2005 |
| SFR O-3-27620 | Trestle Creek Properties, LLC only | Giddings (Eagleford) | Brazos | 1 | 72.8K | 556K | Sep 2019 – Apr 2026 |
| Luther "A" O-3-22114 | Wildfire Energy Operating LLC only | Caldwell (Austin Chalk) | Brazos | 1 | 72.7K | 33.4K | Jul 1993 – Nov 2015 |
| Garrett-Jones Unit 1 O-3-22420 | McDaniel Company, Inc., The only | Giddings (Austin Chalk-3) | Brazos | 1 | 72.5K | 73.3K | Apr 1994 – Apr 1997 |
| Lightsey O-3-26703 | BBL Operating Company LLC only | Giddings (Buda) | Brazos | 1 | 72.4K | 93.9K | May 2014 – Mar 2026 |
| Moehlman RE Unit O-3-18724 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 72.4K | 263K | Jan 1993 – Jul 2019 |
| Wehmeyer-Wehmeyer Unit O-3-21929 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 72.2K | 21.4K | Jan 1993 – Oct 2020 |
| Dansby Morehead O-3-25386 | Wildfire Energy Operating LLC only | Giddings (Buda) | Brazos | 1 | 72.2K | 744K | Apr 2009 – Sep 2025 |
| Preston O-3-24467 | 7711 Corporation, The only | Kurten (Buda) | Brazos | 1 | 71.8K | 58.7K | Nov 2003 – Nov 2006 |