| Hugh Thompson Unit II O-3-21566 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 51.2K | 4.45K | Jan 1993 – Nov 2024 |
| Wright, Anna Unit G-3-154520 | Ogden Resources Corporation only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 51.2K | 1.4M | Apr 1995 – Dec 2013 |
| College Hills Unit G-3-157043 | Magnolia Oil & Gas Operating LLC only | Kurten (Georgetown) | Brazos | 1 | 50.8K | 1.26M | Jul 1995 – Apr 2026 |
| Harriman Unit O-3-24835 | Wildfire Energy Operating LLC only | Kurten (Buda) | Brazos | 1 | 50.7K | 27.7K | Mar 2006 – Jul 2014 |
| Lee, Peggy O-3-24422 | 7711 Corporation, The only | Kurten (Buda) | Brazos | 1 | 50.2K | 89.6K | Apr 2003 – May 2007 |
| Smallfield, Adolph O-3-25334 | Wildfire Energy Operating LLC only | Giddings (Buda) | Brazos | 1 | 50K | 910K | Mar 2009 – Dec 2025 |
| Bee Creek O-3-23586 | Wildfire Energy Operating LLC only | Kurten (Buda) | Brazos | 1 | 50K | 2.5K | Jul 1997 – Nov 2019 |
| Varisco, Antonio "A" O-3-18081 | Wildfire Energy Operating LLC only | Kurten (Buda) | Brazos | 1 | 49.8K | 54.9K | Jan 1993 – Jun 2022 |
| Brazos Coal Ltd.-Terry "B" Unit O-3-23791 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 49.8K | 692K | Sep 1999 – Aug 2017 |
| Preston Ruffino EB O-3-26244 | Wildfire Energy Operating LLC only | Madisonville, W. (Woodbine -A-) | Brazos | 2 | 49.7K | 24.3K | Aug 2013 – Feb 2024 |
| Ruffino-Potts Unit 1 O-3-22689 | McDaniel Company, Inc., The only | Giddings (Austin Chalk-3) | Brazos | 1 | 49.3K | 40.3K | Feb 1995 – Jan 2002 |
| Kim "A" O-3-24589 | Martineau Petroleum, Inc. only | Giddings (Buda) | Brazos | 1 | 49.2K | 55K | Apr 2004 – Oct 2008 |
| McFarlane Unit 4 G-3-167648 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 49.1K | 1.08M | Nov 1997 – Jul 2010 |
| Abshire Selected Lands Unit G-3-234462 | Magnolia Oil & Gas Operating LLC only | Navasota River (Cretaceous Lwr.) | Brazos | 1 | 49.1K | 2.93M | Feb 2007 – Apr 2026 |
| Newberry, M.S. "B" O-3-20761 | Wildfire Energy Operating LLC only | Kurten (Austin Chalk) | Brazos | 1 | 49K | 32.8K | Feb 1993 – Jul 2003 |
| Sebesta-Vinson Unit G-3-143211 | McDaniel Company, Inc., The only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 48.5K | 1.05M | Jan 1993 – Nov 1999 |
| Williams Minerals O-3-25876 | Wildfire Energy Operating LLC only | Giddings (Buda) | Brazos | 1 | 47.8K | 14.6K | Feb 2012 – Mar 2026 |
| Vivian O-3-25095 | Wildfire Energy Operating LLC only | Giddings (Buda) | Brazos | 1 | 47.4K | 421K | Dec 2007 – Oct 2019 |
| Palasota-Peters "a" Unit O-3-21835 | McDaniel Company, Inc., The only | Giddings (Austin Chalk-3) | Brazos | 1 | 47.4K | 179K | Jan 1993 – Aug 1999 |
| Dansby Heirs Unit O-3-21797 | Holley Oil Company, LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 47.3K | 87.7K | Jan 1993 – Sep 2011 |
| Hicks, W. B. O-3-21683 | McDaniel Company, Inc., The only | Giddings (Austin Chalk-3) | Brazos | 1 | 47.3K | 235K | Jan 1993 – Aug 1999 |
| Uvacek G-3-189840 | Shidler, Mark L., Inc. only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 47.2K | 987K | May 2002 – May 2012 |
| Waller, Peyton O-3-21422 | Sandel Operating Company only | Giddings (Austin Chalk-3) | Brazos | 1 | 47.1K | 579K | Jan 1993 – Jun 2002 |
| Newberry, M. S. O-3-20774 | Wildfire Energy Operating LLC only | Kurten (Austin Chalk) | Brazos | 1 | 47K | 148K | Jan 1993 – Apr 2020 |
| Adams Ranch O-3-26153 | MD America Energy, LLC only | Madisonville, W. (Woodbine -A-) | Brazos | 1 | 47K | 36K | Mar 2013 – Aug 2014 |
| Stevener, R. O-3-24763 | Buffco Production Inc. only | Kurten (Buda) | Brazos | 1 | 47K | 31.3K | Apr 2005 – Feb 2026 |
| Butler O-3-24800 | Holley Oil Company, LLC only | Kurten (Buda) | Brazos | 1 | 47K | 85.6K | Apr 2006 – Mar 2015 |
| Moore G-3-151227 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 46.8K | 11.4M | Sep 1994 – Apr 2026 |
| Bell Unit G-3-293850 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 46.5K | 399K | May 2022 – Mar 2026 |
| Christopher O-3-21142 | Chaparral Energy, L.L.C. only | Kurten (Buda) | Brazos | 1 | 46.2K | 52.4K | Jan 1993 – Jul 2006 |
| Treatment Plant O-3-25354 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 46.1K | 343K | Jun 2009 – Dec 2025 |
| Barnes O-3-25551 | South Texas Operating Company only | Giddings (Austin Chalk-3) | Brazos | 1 | 46K | 10.4K | Jul 2010 – Feb 2026 |
| Boyett, Jack O-3-22057 | Douglas Petroleum Inc. only | Giddings (Austin Chalk-3) | Brazos | 1 | 45.9K | 500K | Apr 1993 – May 2000 |
| 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 |
| Bell Unit G-3-294255 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 45.5K | 359K | May 2022 – Mar 2026 |
| Smith-Mohawk Unit O-3-25154 | Ogden Resources Corporation only | Giddings (Austin Chalk-3) | Brazos | 1 | 45.5K | 300K | May 2008 – Aug 2018 |
| Davis Unit O-3-21706 | Williams, Clayton Energy, Inc. only | Kurten (Buda) | Brazos | 1 | 45.5K | 31.8K | Jan 1993 – Aug 2001 |
| Williams, A.M. O-3-19489 | Cumming Company, Inc. The only | Kurten (Woodbine) | Brazos | 2 | 45.4K | 321 | Jan 1993 – Mar 2026 |
| Wilson, James D. Unit #2 O-3-15786 | Wildfire Energy Operating LLC only | Kurten (Woodbine) | Brazos | 1 | 45.3K | 26K | Jan 1993 – Jun 2013 |
| Christopher #3 O-3-22153 | Northfield Enterprises, Inc. only | Caldwell, NE (Georgetown) | Brazos | 1 | 45.2K | 51.4K | May 1993 – Nov 2000 |
| Golden Triangle Unit O-3-21666 | Enervest Operating, L.L.C. only | Giddings (Austin Chalk-3) | Brazos | 1 | 44.8K | 160K | Jan 1993 – Jul 2001 |
| Scasta Unit O-5-4093 | Wildfire Energy Operating LLC only | Aguila Vado (Eagleford) | Brazos | 1 | 44.5K | 6.61K | Oct 2014 – May 2021 |
| Marino, Joe O-3-16611 | Southwest Resources, Inc. only | Kurten (Buda) | Brazos | 1 | 44.3K | 176K | Jan 1993 – Nov 2019 |
| Honey O-3-24702 | 7711 Corporation, The only | Kurten (Buda) | Brazos | 1 | 43.9K | 138K | Dec 2004 – Sep 2008 |
| Britten O-3-23199 | WCS Oil & Gas Corporation only | Kurten (Buda) | Brazos | 1 | 43.8K | 129K | Mar 1997 – Mar 2007 |
| Charli O-3-24949 | 7711 Corporation, The only | Caldwell, NE (Georgetown) | Brazos | 1 | 43.8K | 92.9K | Nov 2006 – Jul 2007 |
| McFarlane. J. W. G-3-140545 | Anadarko E&P Company LP only | Clay, NE (Austin Chalk 11350) | Brazos | 1 | 43.8K | 887K | Jan 1993 – Jun 2003 |
| Horned Frog O-3-20900 | Union Pacific Resources Company only | Kurten (Buda) | Brazos | 2 | 43.5K | 95.9K | Jan 1993 – Apr 1996 |
| Varisco, Antonio O-3-21130 | Wildfire Energy Operating LLC only | Kurten (Austin Chalk) | Brazos | 1 | 43.3K | 60.8K | Jan 1993 – Mar 2026 |
| Bush-Warren Unit O-3-21469 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 2 | 43.1K | 376K | Jan 1993 – Sep 2000 |