| Garza B Unit G-3-148226 | Williams, Clayton Energy, Inc. only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 6.95K | 97.7K | Jun 1993 – Jul 1996 |
| Younger, J. E. Unit I O-3-19720 | Leexus Oil & Gas L.L.P. only | Kurten (Woodbine) | Brazos | 1 | 6.88K | 20.7K | Jan 1993 – Sep 2001 |
| Murphy Unit G-3-215598 | Rumble Energy LLC only | Aggieland (Woodbine) | Brazos | 1 | 6.77K | 298K | Jan 2006 – Dec 2025 |
| Christopher #2 O-3-21466 | Northfield Enterprises, Inc. only | Kurten (Buda) | Brazos | 1 | 6.74K | 14.4K | Jan 1993 – Mar 1998 |
| Jones, A.A. O-3-21133 | Enervest Operating, L.L.C. only | Giddings (Austin Chalk-3) | Brazos | 1 | 6.68K | 214K | Jan 1993 – Aug 2010 |
| Stephen Unit G-3-293182 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 6.59K | 83.7K | Jul 2021 – Mar 2026 |
| Brocksmith, Claude O-3-17675 | Impetro Operating LLC only | Kurten (Buda) | Brazos | 1 | 6.59K | 0 | Jul 2005 – Sep 2011 |
| Buth O-3-24258 | Stroud Oil Properties, Inc. only | Giddings (Austin Chalk-3) | Brazos | 1 | 6.58K | 241K | Aug 2002 – Apr 2003 |
| Gerry Saum Unit O-3-18091 | Dpmp Energy LLC only | Aggieland (Woodbine) | Brazos | 1 | 6.49K | 116K | Jan 1993 – May 2018 |
| Moore, Tom G-3-145269 | Douglas Petroleum Inc. only | Clay, NE (Austin Chalk 11350) | Brazos | 1 | 6.47K | 189K | Apr 1993 – Mar 2001 |
| Lyda-Halliwell O-3-18207 | San Dia Producing Company only | Kurten (Buda) | Brazos | 1 | 6.4K | 102 | Feb 1993 – Mar 2002 |
| Wynne-Sullivan O-3-13519 | Vess Oil Corporation only | Kurten (Woodbine) | Brazos | 1 | 6.32K | 35.2K | Jan 1993 – Jun 1999 |
| Kavanaugh, M.S. Unit O-3-16345 | MW Petroleum Corporation only | Stone City (Austin Chalk) | Brazos | 1 | 6.32K | 10.7K | Jan 1993 – Mar 1995 |
| Stewart "A" O-3-21488 | Marathon Oil Company only | Giddings (Austin Chalk-3) | Brazos | 1 | 6.29K | 76.8K | Jan 1993 – Oct 1995 |
| Cash, Leon F. O-3-25179 | Apache Corporation only | Giddings (Eagleford) | Brazos | 1 | 6.28K | 2.27K | Apr 2008 – Feb 2015 |
| Mitchell Pasture O-3-15766 | Ramrod Oil and Gas (U.S.A.) Inc. only | Giddings (Austin Chalk-3) | Brazos | 1 | 6.22K | 15.8K | Jan 1993 – Dec 1995 |
| Bayne O-3-20646 | Fricke Production Company only | Caldwell (Austin Chalk) | Brazos | 1 | 6.11K | 67 | Feb 1993 – Aug 2002 |
| Glover Unit G-3-157562 | Chesapeake Operating, Inc. only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 6.09K | 349K | Jan 1996 – Aug 2002 |
| Ruffino P. "B" O-3-21734 | Union Pacific Resources Company only | Giddings (Austin Chalk-3) | Brazos | 1 | 6.08K | 4.46K | Jan 1993 – Dec 1995 |
| Scott, Peter O-3-21218 | B.W.O.C., Inc. only | Kurten (Buda) | Brazos | 1 | 6.07K | 6 | Jan 1993 – Nov 2001 |
| Cockrell Oil Unit I O-3-16082 | Andrus Resources Corporation only | Kurten (Buda) | Brazos | 1 | 6.05K | 13.6K | Jan 1993 – Nov 1996 |
| Leon Cash Unit O-3-25139 | Wildfire Energy Operating LLC only | Giddings (Eagleford) | Brazos | 1 | 6.04K | 879 | Mar 2008 – Jul 2023 |
| Lyons Unit O-3-23758 | Grand Operating, Inc. only | Giddings (Austin Chalk-3) | Brazos | 1 | 5.82K | 167K | Nov 1999 – Jan 2002 |
| Terry-Terry Unit O-3-25216 | Enervest Operating, L.L.C. only | Giddings (Austin Chalk-3) | Brazos | 1 | 5.81K | 33.1K | Jun 2008 – Mar 2012 |
| Mahoney-Shannon O-3-17192 | Texas State Oil Co. only | Kurten (Buda) | Brazos | 1 | 5.73K | 17.3K | Jan 1993 – Oct 1996 |
| Tobias Unit O-3-21603 | Rathburn Land & Devel, Inc. only | Giddings (Austin Chalk-3) | Brazos | 1 | 5.71K | 37.5K | Jan 1993 – Nov 1994 |
| Jones-Walker Unit O-3-21592 | Union Pacific Resources Company only | Giddings (Austin Chalk-3) | Brazos | 1 | 5.71K | 60.7K | Jan 1993 – Jun 1994 |
| Bienski-Porterfield Unit O-3-21908 | Union Pacific Resources Company only | Giddings (Austin Chalk-3) | Brazos | 1 | 5.58K | 24K | Jan 1993 – Sep 1993 |
| Triola, D. O-3-15937 | Omimex Petroleum, Inc. only | Kurten (Buda) | Brazos | 1 | 5.56K | 21.1K | Jan 1993 – May 1996 |
| Hoke Unit O-3-18013 | East Texas Production Mgt. Inc only | Kurten (Buda) | Brazos | 1 | 5.42K | 20 | Jan 1993 – Nov 1998 |
| Yeager-Keller Unit 1 O-3-18002 | Douglas Petroleum Inc. only | Kurten (Buda) | Brazos | 1 | 5.38K | 14.9K | Jan 1993 – Nov 1996 |
| Lagene Unit O-3-16105 | Holley Oil Company, LLC only | Kurten (Buda) | Brazos | 1 | 5.33K | 21 | Jan 1993 – Jul 2003 |
| Ezell Unit O-3-15827 | B.W.O.C., Inc. only | Bryan, N. (Georgetown) | Brazos | 1 | 5.29K | 8.34K | Jan 1993 – Mar 1997 |
| Riptoe, Ethel G-3-203434 | Iron Ridge Operating, LLC only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 5.24K | 176K | Jul 2004 – Apr 2023 |
| A. Habarta Unit O-3-21456 | Dynamic Production, Inc. only | Giddings (Austin Chalk-3) | Brazos | 2 | 5.24K | 9.29K | Feb 1993 – Jul 1995 |
| McCallum, J.A. Unit I O-3-16953 | Patterson Petroleum LLC only | Kurten (Buda) | Brazos | 1 | 5.23K | 8.32K | Jan 1993 – Jul 1996 |
| Newberry, Milton S. -C- O-3-20662 | Pioneer Natural Res. USA, Inc. only | Kurten (Austin Chalk) | Brazos | 1 | 5.18K | 3.83K | Jan 1993 – Sep 1994 |
| Dansby "B" O-3-17448 | McDaniel Company, Inc., The only | Kurten (Buda) | Brazos | 1 | 5.1K | 49 | Jan 1993 – Jul 1998 |
| Lindley G-3-215712 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 5.09K | 778K | Jun 2005 – Apr 2026 |
| Terrell G-3-153348 | Redbud E & P, Inc. only | Clay, NE (Austin Chalk 11350) | Brazos | 1 | 5.03K | 2.12M | Sep 1994 – Apr 2026 |
| Lipscomb Unit O-3-24365 | Cumming Company, Inc. The only | Bryan (Woodbine) | Brazos | 1 | 4.99K | 0 | Mar 2003 – Jan 2018 |
| Olden-Paull Unit G-3-144379 | Union Pacific Resources Company only | Giddings (Georgetown, Gas) | Brazos | 1 | 4.81K | 100K | Jan 1993 – Mar 1993 |
| H. H. Moore Unit G-3-157682 | Anadarko E&P Company LP only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 4.76K | 5.72M | Jan 1996 – Oct 2003 |
| Opersteny Unit O-3-13520 | Ows Energy, Inc. only | Kurten (Woodbine) | Brazos | 1 | 4.75K | 8.03K | Jan 1993 – Jul 1996 |
| Yeager, Beulah Unit II O-3-15844 | Omimex Petroleum, Inc. only | Kurten (Buda) | Brazos | 1 | 4.75K | 41 | Jan 1993 – Dec 1996 |
| Kehlenbrink, R. O-3-19732 | Impetro Operating LLC only | Kurten (Woodbine) | Brazos | 1 | 4.65K | 750 | Jan 1993 – May 2014 |
| J. W. V. OL G-3-162301 | Shield Petroleum only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 4.64K | 73.5K | Sep 1996 – Mar 2000 |
| B . G . R . S . O-3-17206 | Vess Oil Corporation only | Kurten (Buda) | Brazos | 1 | 4.59K | 5.15K | Dec 1997 – May 2006 |
| Angonia O-3-22948 | Delaware Ecco Petroleum Inc. only | Kurten (Austin Chalk) | Brazos | 1 | 4.53K | 4.68K | Mar 1996 – May 1997 |
| Payne O-3-18816 | Seguro Well Service, Inc. only | Kurten (Woodbine) | Brazos | 1 | 4.49K | 69.3K | Jan 1993 – Jul 2014 |