| Gaubatz-Yegua Unit G-3-145218 | Enervest Operating, L.L.C. only | Clay, NE (Austin Chalk 11350) | Burleson | 1 | 132K | 3.13M | Mar 1993 – Sep 2008 |
| Rubenstein Unit G-3-149586 | Verdun Oil & Gas LLC only | Clay, NE (Austin Chalk 11350) | Burleson | 1 | 113K | 3.03M | May 1994 – Feb 2026 |
| Hutchings-Hutchings Unit G-3-148231 | Magnolia Oil & Gas Operating LLC only | Clay, NE (Austin Chalk 11350) | Burleson | 1 | 111K | 4.45M | Jan 1994 – Apr 2026 |
| See-Huggins Unit G-3-145491 | Enervest Operating, L.L.C. only | Clay, NE (Austin Chalk 11350) | Burleson | 1 | 104K | 2.18M | Feb 1993 – Jun 2012 |
| See-Yegua Unit G-3-142842 | Enervest Operating, L.L.C. only | Clay, NE (Austin Chalk 11350) | Burleson | 1 | 101K | 2.22M | Jan 1993 – Sep 2007 |
| Yegua-Schawe Unit G-3-147595 | Enervest Operating, L.L.C. only | Clay, NE (Austin Chalk 11350) | Burleson | 1 | 95.1K | 2.3M | Nov 1993 – Oct 2013 |
| Wilkins, Mabel G-3-95901 | Seneca Resources Corporation only | Clay, NE (Austin Chalk 11350) | Burleson | 1 | 92.7K | 2.3M | Jan 1993 – Aug 1999 |
| Moore, Robert Estate G-3-157898 | Verdun Oil & Gas LLC only | Clay, NE (Austin Chalk 11350) | Brazos | 1 | 88.2K | 2.21M | Feb 1996 – Apr 2026 |
| Wilkins, Mabel G-3-143940 | Verdun Oil & Gas LLC only | Clay, NE (Austin Chalk 11350) | Burleson | 1 | 85.1K | 1.74M | Jan 1993 – Mar 2026 |
| Yegua-Yegua "a" Unit G-3-146969 | Southwest Resources, Inc. only | Clay, NE (Austin Chalk 11350) | Burleson | 1 | 84.1K | 1.83M | Aug 1993 – Dec 2022 |
| Leachmann-Robinson Unit G-3-145659 | Rme Petroleum Company only | Clay, NE (Austin Chalk 11350) | Burleson | 1 | 83.3K | 1.55M | Feb 1993 – Feb 2002 |
| Leachman-Lockhart Unit G-3-146975 | Redbud E & P, Inc. only | Clay, NE (Austin Chalk 11350) | Burleson | 1 | 80.9K | 1.87M | Sep 1993 – Feb 2022 |
| Pecore-Siegert G-3-144909 | Seneca Resources Corporation only | Clay, NE (Austin Chalk 11350) | Burleson | 1 | 67.7K | 1.28M | Feb 1993 – Jun 1999 |
| 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 |
| Yegua-Ware Unit G-3-144138 | Magnolia Oil & Gas Operating LLC only | Clay, NE (Austin Chalk 11350) | Burleson | 1 | 63K | 1.3M | Jan 1993 – Jul 2016 |
| 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 |
| Gaubatz-Fojt Unit G-3-145349 | Crawford Hughes Operating Co. only | Clay, NE (Austin Chalk 11350) | Burleson | 1 | 58.4K | 1.31M | Apr 1993 – Feb 2009 |
| Moore, Robert Unit G-3-156775 | Verdun Oil & Gas LLC only | Clay, NE (Austin Chalk 11350) | Brazos | 1 | 53.7K | 1.56M | Aug 1995 – Mar 2026 |
| 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 – Mar 2026 |
| Dickson Unit G-3-149257 | Southwest Resources, Inc. only | Clay, NE (Austin Chalk 11350) | Burleson | 1 | 52.6K | 1.08M | Apr 1994 – Oct 2017 |
| Lyons G-3-144907 | Moore Petroleum Service, Inc. only | Clay, NE (Austin Chalk 11350) | Brazos | 1 | 51.6K | 1.06M | Jan 1993 – Oct 1995 |
| Hutchings-Hutchings "a" Unit G-3-148232 | Magnolia Oil & Gas Operating LLC only | Clay, NE (Austin Chalk 11350) | Burleson | 1 | 45.1K | 4.5M | Jan 1994 – Apr 2026 |
| See-Yegua 'a' Unit G-3-146067 | Magnolia Oil & Gas Operating LLC only | Clay, NE (Austin Chalk 11350) | Burleson | 1 | 43.9K | 815K | Jun 1993 – Mar 1999 |
| 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 |
| Waldorf-Pool G-3-143409 | Magnolia Oil & Gas Operating LLC only | Clay, NE (Austin Chalk 11350) | Brazos | 1 | 40K | 1.09M | 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 |
| Terrell Unit G-3-146589 | Seneca Resources Corporation only | Clay, NE (Austin Chalk 11350) | Brazos | 1 | 33.9K | 816K | Jul 1993 – Aug 1999 |
| Waldorf-Schehin G-3-145817 | Pride Energy Company only | Clay, NE (Austin Chalk 11350) | Brazos | 1 | 23K | 825K | Apr 1993 – Jun 2002 |
| Wilkins, Mabel G-3-192027 | Southwest Resources, Inc. only | Clay, NE (Austin Chalk 11350) | Burleson | 1 | 19.6K | 1.1M | Nov 2001 – Apr 2022 |
| Hilton-Yegua Unit G-3-141258 | McDaniel Company, Inc., The only | Clay, NE (Austin Chalk 11350) | Burleson | 1 | 9.98K | 212K | Jan 1993 – Apr 2000 |
| Moore, Tom G-3-145269 | Douglas Petroleum Inc. only | Clay, NE (Austin Chalk 11350) | Brazos | 1 | 6.47K | 189K | Apr 1993 – Mar 2001 |
| Terrell G-3-153348 | Redbud E & P, Inc. only | Clay, NE (Austin Chalk 11350) | Brazos | 1 | 5.03K | 2.12M | Sep 1994 – Apr 2026 |
| Wilkins, Mabel G-3-123113 | Seneca Resources Corporation only | Clay, NE (Austin Chalk 11350) | Burleson | 1 | 0 | 321 | Jan 1993 – Jan 1993 |
| Moore, Robert G-3-212737 | Crawford Hughes Operating Co. only | Clay, NE (Austin Chalk 11350) | Brazos | 1 | 0 | 0 | — |