| Moore, Robert T. Estate G-3-144908 | Verdun Oil & Gas LLC only | Clay, NE (Austin Chalk 11350) | Brazos | 1 | 67.5K | 1.42M | Feb 1993 – Nov 2024 |
| Myers Cattle Unit G-3-153701 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 66.7K | 3.68M | Jan 1995 – Aug 2026 |
| Molitor Unit G-3-295820 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 61.2K | 397K | Nov 2022 – Jul 2026 |
| Moore Estate Unit G-3-157261 | Verdun Oil & Gas LLC only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 60.7K | 2.78M | Oct 1995 – Aug 2026 |
| McFarlane-Moore Unit G-3-146056 | Southwest Resources, Inc. only | Clay, NE (Austin Chalk 11350) | Brazos | 1 | 60.1K | 1.51M | May 1993 – Sep 2013 |
| Orlando Unit G-3-150978 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 59.3K | 7.6M | Aug 1994 – Mar 2026 |
| Bell Unit G-3-294554 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 57.2K | 501K | May 2022 – Jul 2026 |
| Moore, H. H. Estate Unit G-3-144416 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 56.7K | 1.22M | Feb 1993 – Nov 2004 |
| Vilas-Moore G-3-148290 | Verdun Oil & Gas LLC only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 56.6K | 3.17M | Jan 1994 – Aug 2026 |
| Cannon-Chance Unit G-3-146964 | Rme Petroleum Company only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 55.8K | 625K | Jun 1993 – Jan 2001 |
| Dunlap-Keyser Unit G-3-148011 | Enervest Operating, L.L.C. only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 54K | 1.77M | Nov 1993 – May 1998 |
| Moore, Robert Unit G-3-156775 | Verdun Oil & Gas LLC only | Clay, NE (Austin Chalk 11350) | Brazos | 1 | 53.7K | 1.56M | Aug 1995 – Aug 2026 |
| Tison-Geudry Unit G-3-146847 | Enervest Operating, L.L.C. only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 53.7K | 899K | Sep 1993 – Oct 2007 |
| Moore, R. Estate Unit G-3-157900 | Verdun Oil & Gas LLC only | Clay, NE (Austin Chalk 11350) | Brazos | 1 | 53.5K | 1.25M | Mar 1996 – Aug 2026 |
| Lyons G-3-144907 | Moore Petroleum Service, Inc. only | Clay, NE (Austin Chalk 11350) | Brazos | 1 | 51.6K | 1.06M | by Jan 1993 – Oct 1995 |
| College Hills Unit G-3-157043 | Magnolia Oil & Gas Operating LLC only | Kurten (Georgetown) | Brazos | 1 | 51.3K | 1.27M | Jul 1995 – Aug 2026 |
| Wright, Anna Unit G-3-154520 | Ogden Resources Corporation only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 51.2K | 1.4M | Apr 1995 – Dec 2013 |
| 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 | 2.94M | Feb 2007 – Aug 2026 |
| Sebesta-Vinson Unit G-3-143211 | McDaniel Company, Inc., The only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 48.5K | 1.05M | by Jan 1993 – Nov 1999 |
| Bell Unit G-3-293850 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 48K | 414K | May 2022 – Jul 2026 |
| Uvacek G-3-189840 | Shidler, Mark L., Inc. only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 47.2K | 987K | May 2002 – May 2012 |
| Moore G-3-151227 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 46.8K | 11.4M | Sep 1994 – Aug 2026 |
| 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 | 45.7K | 373K | May 2022 – Jul 2026 |
| McFarlane. J. W. G-3-140545 | Anadarko E&P Company LP only | Clay, NE (Austin Chalk 11350) | Brazos | 1 | 43.8K | 887K | by Jan 1993 – Jun 2003 |
| Carroll - Peters Unit G-3-162306 | Magnolia Oil & Gas Operating LLC only | Kurten (Georgetown) | Brazos | 1 | 43K | 802K | Jan 1997 – Aug 2026 |
| Carroll-Biering Unit G-3-160785 | Magnolia Oil & Gas Operating LLC only | Kurten (Georgetown) | Brazos | 1 | 42.7K | 1.37M | Oct 1996 – Aug 2026 |
| Myers Cattle Unit G-3-156375 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 42.1K | 2.79M | Sep 1995 – Aug 2026 |
| Waldorf-Pool G-3-143409 | Magnolia Oil & Gas Operating LLC only | Clay, NE (Austin Chalk 11350) | Brazos | 1 | 40K | 1.09M | by Jan 1993 – Jan 2010 |
| McFarlane, J. W. G-3-145663 | Magnolia Oil & Gas Operating LLC only | Clay, NE (Austin Chalk 11350) | Brazos | 1 | 39.4K | 849K | Apr 1993 – Apr 2013 |
| Enterprise Unit G-3-162239 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 38.5K | 1.6M | Feb 1997 – Aug 2026 |
| Hullabaloo G-3-190267 | Magnolia Oil & Gas Operating LLC only | Giddings (Buda) | Brazos | 1 | 38.4K | 938K | Aug 2001 – Aug 2026 |
| McFarlane, J. W. G-3-141646 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 37.7K | 920K | by Jan 1993 – Nov 2003 |
| Cannon-Chance Unit G-3-187097 | Magnolia Oil & Gas Operating LLC only | Giddings (Buda) | Brazos | 1 | 36.6K | 1.52M | Mar 2001 – Aug 2026 |
| T.J.M. OL G-3-156533 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 35.4K | 3.84M | Aug 1995 – Aug 2026 |
| Arnold Unit G-3-159645 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 35.2K | 2.13M | Jun 1996 – Aug 2026 |
| Kathleen OL G-3-156347 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 35.1K | 3.09M | Jul 1995 – Aug 2026 |
| Wickson Unit G-3-164799 | Patterson Petroleum, Inc. only | Iola (Georgetown) | Brazos | 1 | 34.8K | 258K | Aug 1997 – Feb 1998 |
| Deerfield -a- Unit G-3-161757 | Magnolia Oil & Gas Operating LLC only | Kurten (Georgetown) | Brazos | 1 | 34.1K | 892K | Nov 1996 – Aug 2026 |
| Allen-Dansby Unit G-3-224957 | Magnolia Oil & Gas Operating LLC only | Navasota River (Cretaceous Lwr.) | Brazos | 1 | 34K | 1.93M | Nov 2006 – Aug 2026 |
| Terrell Unit G-3-146589 | Seneca Resources Corporation only | Clay, NE (Austin Chalk 11350) | Brazos | 1 | 33.9K | 816K | Jul 1993 – Aug 1999 |
| Wade-Havens Unit G-3-145128 | Southwest Resources, Inc. only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 32.7K | 753K | Feb 1993 – Nov 1997 |
| Mahaffey G-3-148164 | Snyder Oil Corporation only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 29.4K | 208K | Jan 1994 – Dec 1994 |
| Walton OL G-3-155050 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 29K | 7.28M | Apr 1995 – Aug 2026 |
| Rust Unit G-3-294630 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 25.7K | 206K | Mar 2022 – Jul 2026 |
| Stanton Unit G-3-156378 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 25K | 14.6M | Sep 1995 – Mar 2020 |
| Waldorf-Schehin G-3-145817 | Pride Energy Company only | Clay, NE (Austin Chalk 11350) | Brazos | 1 | 23K | 825K | Apr 1993 – Jun 2002 |
| Rust Unit G-3-294000 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 22.8K | 407K | Mar 2022 – Jul 2026 |
| Westlands G-3-153402 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 22.1K | 2.41M | Jan 1995 – Aug 2026 |