| Nunley O-3-27295 | Proven Natural Resources LLC only | Kurten (Woodbine) | Brazos | 1 | 13.1K | 14.9K | Oct 2017 – Apr 2026 |
| Keyser, W. B. G-3-146546 | Anadarko E&P Company LP only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 13K | 1.66M | Jul 1993 – Jun 2004 |
| Angello O-3-25762 | New Century Exploration, Inc. only | Giddings (Austin Chalk-3) | Brazos | 1 | 12.8K | 67.8K | Mar 2011 – Sep 2015 |
| Thumper O-3-24954 | 7711 Corporation, The only | Caldwell, NE (Georgetown) | Brazos | 1 | 12.8K | 8.03K | Oct 2006 – Jul 2007 |
| Varisco, Dorotea Estate "a" Unit O-3-23235 | Apache Corporation only | Stone City (Austin Chalk) | Brazos | 1 | 12.7K | 23.6K | Feb 1997 – Mar 2004 |
| Deerfield Unit G-3-159510 | Union Pacific Resources Company only | Kurten (Georgetown) | Brazos | 1 | 12.5K | 401K | Jul 1996 – May 1998 |
| Grant, P.M. "B" O-3-16428 | Wildfire Energy Operating LLC only | Kurten (Buda) | Brazos | 1 | 12.4K | 33.9K | Jan 1993 – Aug 1997 |
| Payne Unit I O-3-13193 | Laredo Energy IV, L.P. only | Kurten (Woodbine) | Brazos | 1 | 12.4K | 2.42K | Jan 1993 – May 2005 |
| Messina Hof O-3-25005 | Halcon Operating Co., Inc. only | Giddings (Buda) | Brazos | 1 | 12.3K | 28.6K | Jul 2007 – Jun 2014 |
| M S Kavanaugh Unit O-3-25135 | Wildfire Energy Operating LLC only | Giddings (Eagleford) | Brazos | 1 | 12.2K | 2.27K | Mar 2008 – Mar 2026 |
| Milam O-3-17212 | Rme Petroleum Company only | Kurten (Buda) | Brazos | 1 | 12.2K | 2.97K | Jan 1993 – Dec 1998 |
| Opersteny, J. O-3-16200 | Holley Oil Company, LLC only | Kurten (Buda) | Brazos | 1 | 12.2K | 10.8K | Jan 1993 – Apr 2005 |
| Kim C O-3-24764 | Martineau Petroleum, Inc. only | Giddings (Buda) | Brazos | 1 | 12.2K | 19.9K | May 2005 – Jun 2006 |
| Wineman O-3-22568 | Ramrod Oil and Gas (U.S.A.) Inc. only | Giddings (Austin Chalk-3) | Brazos | 2 | 12.1K | 23.3K | Aug 1994 – Dec 1995 |
| Dansby-Morehead Unit O-3-21527 | 7711 Corporation, The only | Giddings (Austin Chalk-3) | Brazos | 1 | 12.1K | 14.5K | Jan 1993 – Sep 1995 |
| Terrell G-3-162090 | Crawford Hughes Operating Co. only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 12.1K | 359K | Dec 1996 – Jan 2010 |
| Buth G-3-195008 | HK Energy Operating, LLC only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 12K | 435K | May 2003 – Mar 2012 |
| McFarlane, J. W. G-3-201420 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 11.9K | 260K | Sep 2003 – Feb 2011 |
| Pate O-3-25133 | Gsi Oil & Gas, Inc. only | Giddings (Buda) | Brazos | 1 | 11.9K | 15K | Dec 2007 – Feb 2017 |
| Salvato O-3-22010 | Apache Corporation only | Giddings (Austin Chalk-3) | Brazos | 1 | 11.9K | 13.5K | Jan 1993 – Aug 2000 |
| DRC GA O-3-21309 | Douglas Petroleum Inc. only | Giddings (Austin Chalk-3) | Brazos | 1 | 11.8K | 28.6K | Jan 1993 – Oct 1998 |
| Varisco Estate O-3-23706 | Anadarko E&P Company LP only | Caldwell, NE (Georgetown) | Brazos | 1 | 11.8K | 6.83K | Jul 1999 – Apr 2002 |
| Morello, Sam O-3-25009 | Wildhorse Resources Mngt Co, LLC only | Giddings (Buda) | Brazos | 1 | 11.8K | 19.8K | Aug 2007 – Dec 2015 |
| Moore, Thomas G-3-189825 | Verdun Oil & Gas LLC only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 11.8K | 1.97M | May 2002 – Apr 2026 |
| Luza Dairy-Tobola Unit O-3-19396 | Ginger Petroleum Company, Inc. only | Kurten (Austin Chalk) | Brazos | 1 | 11.8K | 22.6K | Aug 1993 – Feb 2021 |
| Dansby "D" O-3-20456 | McDaniel Company, Inc., The only | Kurten (Buda) | Brazos | 1 | 11.7K | 49 | Jan 1993 – May 1998 |
| Vilas G-3-145656 | Shield Petroleum only | Clay, N.E. (Austin Chalk, Gas) | Brazos | 1 | 11.7K | 431K | Apr 1993 – Apr 1994 |
| Salvato O-3-19323 | Apache Corporation only | Caldwell, NE (Georgetown) | Brazos | 2 | 11.7K | 14.1K | Jan 1993 – Aug 2000 |
| Jones-Foster Unit O-3-22184 | Union Pacific Resources Company only | Giddings (Austin Chalk-3) | Brazos | 1 | 11.7K | 66.2K | Mar 1993 – Dec 1993 |
| Preston "B" O-3-24712 | 7711 Corporation, The only | Kurten (Buda) | Brazos | 1 | 11.6K | 9.94K | May 2004 – Sep 2005 |
| Stuart O-3-25105 | 7711 Corporation, The only | Kurten (Buda) | Brazos | 1 | 11.6K | 2.01K | Aug 2006 – Aug 2010 |
| Sorghum O-5-4480 | Wildfire Energy Operating LLC only | Aguila Vado (Eagleford) | Brazos | 1 | 11.6K | 1.14K | Oct 2024 – Mar 2026 |
| Arnold O-3-17447 | Southwest Resources, Inc. only | Kurten (Buda) | Brazos | 1 | 11.5K | 12.4K | Jan 1993 – Jan 2003 |
| DRC G O-3-13465 | Douglas Petroleum Inc. only | Giddings (Austin Chalk-3) | Brazos | 3 | 11.4K | 24K | Jan 1993 – Aug 1999 |
| Comanche O-3-17768 | Dpmp Energy LLC only | Aggieland (Woodbine) | Brazos | 1 | 11.4K | 235K | Jan 1993 – Mar 2020 |
| Court, Vince O-3-19704 | Endeavor Energy Resources L.P. only | Caldwell, NE (Georgetown) | Brazos | 1 | 11.2K | 9 | Apr 1993 – Aug 2001 |
| Allen Farm OL G-3-159453 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 11.1K | 3.78M | Apr 1996 – Apr 2026 |
| Garza "B" Unit O-3-15641 | Williams, Clayton Energy, Inc. only | Giddings (Austin Chalk-3) | Brazos | 2 | 11K | 175K | Jan 1993 – Dec 1999 |
| Marsha-Elliott G-3-141704 | Rosewood Resources, Inc. only | Clay, NE (Austin Chalk 12200) | Brazos | 1 | 10.9K | 558K | Jan 1993 – Feb 1999 |
| Odom, H. K. O-3-24689 | Proven Natural Resources LLC only | Kurten (Buda) | Brazos | 1 | 10.9K | 0 | Oct 2004 – Apr 2026 |
| Ribardo-Ribardo Unit O-3-19913 | Endeavor Energy Resources L.P. only | Kurten (Buda) | Brazos | 3 | 10.8K | 15.9K | Jan 1993 – Jun 2016 |
| Kurz O-3-21297 | Union Pacific Resources Company only | Giddings (Austin Chalk-3) | Brazos | 1 | 10.8K | 19.7K | Jan 1993 – Jan 1997 |
| Varisco Unit O-3-21421 | Rme Petroleum Company only | Giddings (Austin Chalk-3) | Brazos | 1 | 10.7K | 94.9K | Jan 1993 – Jun 2000 |
| Susan O-3-25087 | 7711 Corporation, The only | Giddings (Buda) | Brazos | 1 | 10.7K | 6.74K | Feb 2007 – Aug 2009 |
| Lightsey-Lightsey O-3-25698 | Magnolia Oil & Gas Operating LLC only | Giddings (Buda) | Brazos | 1 | 10.6K | 255K | Feb 2011 – Feb 2025 |
| Fazzino, D. Unit O-3-17691 | Howell Petroleum Corporation only | Kurten (Buda) | Brazos | 1 | 10.5K | 11.2K | Jan 1993 – Jun 2001 |
| Vince Court Unit O-3-25043 | Wildfire Energy Operating LLC only | Cooks Point (Woodbine) | Brazos | 1 | 10.4K | 2.15K | Aug 2007 – Dec 2019 |
| Knox Unit O-3-24003 | B.W.O.C., Inc. only | Giddings (Buda) | Brazos | 1 | 10.4K | 194K | Apr 2001 – May 2005 |
| Stasny O-3-27905 | Ogden Resources Corporation only | Kurten (Buda) | Brazos | 2 | 10.4K | 30.3K | Aug 2024 – Apr 2026 |
| Jericho-Vilas G-3-148008 | Southwest Resources, Inc. only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 10.3K | 289K | Sep 1993 – Jun 2018 |