| Birchridge-Allen Unit G-3-149117 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 412K | 4.06M | Mar 1994 – Feb 2020 |
| Walker, M. P. G-3-148090 | Verdun Oil & Gas LLC | Giddings (Austin Chalk, Gas) | 1 | 401K | 3.45M | Dec 1993 – Feb 2026 |
| Walker, M. P. G-3-149172 | Verdun Oil & Gas LLC | Giddings (Austin Chalk, Gas) | 1 | 387K | 2.82M | Mar 1994 – Apr 2026 |
| Jr. Allen OL G-3-149216 | Chesapeake Operating, Inc. | Giddings (Austin Chalk, Gas) | 1 | 263K | 1.61M | Feb 1994 – Feb 2001 |
| Terry-Terry Unit G-3-143967 | Enervest Operating, L.L.C. | Giddings (Austin Chalk, Gas) | 1 | 263K | 1.76M | Jan 1993 – Feb 2008 |
| Dunlap-Bryan Unit G-3-148172 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 256K | 4.39M | Jan 1994 – Jul 2024 |
| McCullough-McCullough 'B' Unit G-3-145291 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 255K | 3.69M | Apr 1993 – Apr 2026 |
| Waltman G-3-154083 | Enervest Operating, L.L.C. | Giddings (Austin Chalk, Gas) | 1 | 239K | 2.34M | Mar 1995 – Feb 2017 |
| Thompson-Marsh Unit G-3-146625 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk, Gas) | 1 | 232K | 2.22M | Aug 1993 – Aug 2020 |
| Dugger-Smith Unit G-3-149897 | Anadarko E&P Company LP | Giddings (Austin Chalk, Gas) | 1 | 224K | 2.38M | May 1994 – Nov 2002 |
| Terry, H. L. Unit G-3-146621 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | 1 | 215K | 2.05M | Jul 1993 – Aug 1999 |
| McCullough-Olden Unit G-3-146491 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk, Gas) | 1 | 189K | 1.72M | May 1993 – Nov 2024 |
| Allen G-3-145818 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | 1 | 188K | 1.3M | May 1993 – Aug 1999 |
| McCullough-McCullough 'A' G-3-145083 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | 1 | 187K | 1.49M | Jan 1993 – Feb 2000 |
| McCullough-Wineman EF G-3-280858 | Wildfire Energy Operating LLC | Giddings (Eagleford) | 1 | 185K | 829K | Jan 2015 – Mar 2026 |
| McCullough-McCullough Unit G-3-143450 | Enervest Operating, L.L.C. | Giddings (Austin Chalk, Gas) | 1 | 181K | 1.53M | Jan 1993 – Apr 2010 |
| Talley-Mitchell Unit G-3-149221 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 180K | 3.61M | Mar 1994 – Oct 2023 |
| Barrera G-3-146859 | Rosewood Resources, Inc. | Giddings (Austin Chalk, Gas) | 1 | 179K | 1.53M | Aug 1993 – Feb 2001 |
| Brazos Coal Ltd.- Nantucket Unit G-3-146622 | Anadarko E&P Company LP | Giddings (Austin Chalk, Gas) | 1 | 175K | 1.77M | Aug 1993 – Jan 2006 |
| Ewert G-3-282093 | Wildfire Energy Operating LLC | Giddings (Eagleford) | 1 | 154K | 1.08M | Sep 2015 – Mar 2026 |
| Lometa G-3-146240 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk, Gas) | 1 | 150K | 1.74M | Jun 1993 – Dec 2015 |
| Miles Unit G-3-281724 | Wildfire Energy Operating LLC | Giddings (Eagleford) | 1 | 145K | 871K | Feb 2016 – Mar 2026 |
| Ewert G-3-282341 | Wildfire Energy Operating LLC | Giddings (Eagleford) | 1 | 145K | 1.03M | Sep 2015 – Mar 2026 |
| Rodgers G-3-280611 | Wildfire Energy Operating LLC | Giddings (Eagleford) | 1 | 145K | 949K | Aug 2015 – Mar 2026 |
| Goen Family G-3-281657 | Wildfire Energy Operating LLC | Giddings (Eagleford) | 1 | 141K | 1.06M | Sep 2015 – Mar 2026 |
| Goen Family G-3-281739 | Wildfire Energy Operating LLC | Giddings (Eagleford) | 1 | 140K | 987K | Sep 2015 – Mar 2026 |
| Rodgers G-3-281323 | Wildfire Energy Operating LLC | Giddings (Eagleford) | 1 | 139K | 933K | Aug 2015 – Mar 2026 |
| Brazos Coal Ltd.-Terry "B" Unit G-3-146180 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | 1 | 134K | 915K | Jun 1993 – Aug 1999 |
| Lake-Smith Unit G-3-147607 | Enervest Operating, L.L.C. | Giddings (Austin Chalk, Gas) | 1 | 132K | 1.42M | Nov 1993 – Nov 2012 |
| Rae G-3-282586 | Wildfire Energy Operating LLC | Giddings (Eagleford) | 1 | 131K | 892K | Apr 2015 – Mar 2026 |
| Rae G-3-282523 | Wildfire Energy Operating LLC | Giddings (Eagleford) | 1 | 127K | 813K | Apr 2015 – Mar 2026 |
| Anderson G-3-294876 | Wildfire Energy Operating LLC | Giddings (Austin Chalk, Gas) | 1 | 124K | 3.84M | Nov 2022 – Mar 2026 |
| Shaughnessy-McFarlane Unit G-3-143336 | Crawford Hughes Operating Co. | Giddings (Austin Chalk, Gas) | 1 | 124K | 3.3M | Jan 1993 – Nov 2020 |
| Abshire Unit G-3-151529 | Anadarko E&P Company LP | Giddings (Austin Chalk, Gas) | 1 | 123K | 4.94M | Sep 1994 – Nov 2006 |
| Olden-Paull Unit G-3-145451 | Enervest Operating, L.L.C. | Giddings (Austin Chalk, Gas) | 1 | 112K | 1.72M | Mar 1993 – Sep 2008 |
| Marrs-Quinn Unit G-3-151151 | Enervest Operating, L.L.C. | Giddings (Austin Chalk, Gas) | 1 | 111K | 6.04M | Aug 1994 – Feb 2009 |
| Podraza-Rotello Unit G-3-150607 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 108K | 6.72M | Jul 1994 – Apr 2026 |
| Miles Unit G-3-281287 | Wildfire Energy Operating LLC | Giddings (Eagleford) | 1 | 107K | 778K | Feb 2016 – Mar 2026 |
| Selected Lands - Pavalock Unit G-3-150481 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 104K | 2.14M | Jun 1994 – Apr 2026 |
| Raceway-Walker Unit G-3-151761 | Seneca Resources Corporation | Mulligan, NE. (Austin Chalk) | 1 | 104K | 541K | Jun 1994 – Jul 1999 |
| Williams G-3-143403 | Rme Petroleum Company | Giddings (Austin Chalk, Gas) | 1 | 100K | 2.51M | Jan 1993 – Mar 2002 |
| Keyser-Boyett Unit G-3-144820 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 94.5K | 4.32M | Feb 1993 – Apr 2026 |
| Steephollow Unit G-3-168707 | Magnolia Oil & Gas Operating LLC | Kurten (Georgetown) | 1 | 92.2K | 1.04M | Apr 1998 – Jan 2025 |
| Dunlap Unit G-3-148839 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 90.2K | 7.68M | Mar 1994 – Feb 2026 |
| Moore, Robert Estate G-3-157898 | Verdun Oil & Gas LLC | Clay, NE (Austin Chalk 11350) | 1 | 88.2K | 2.21M | Feb 1996 – Apr 2026 |
| Arhopulos-Brazos Unit G-3-144778 | Williams, Clayton Energy, Inc. | Giddings (Austin Chalk, Gas) | 1 | 84.9K | 2.42M | Mar 1993 – Jul 2013 |
| Sowell Unit G-3-149587 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 81.3K | 4.95M | May 1994 – Apr 2026 |
| Moon Unit G-3-153168 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 78K | 5.57M | Dec 1994 – Apr 2026 |
| Quinn-Perkins Unit G-3-152768 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 71.3K | 8.05M | Nov 1994 – Apr 2026 |
| Moore, Robert T. Estate G-3-144908 | Verdun Oil & Gas LLC | Clay, NE (Austin Chalk 11350) | 1 | 67.5K | 1.42M | Feb 1993 – Nov 2024 |