| 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 |
| Martin G-2-259051 | Jamex, Inc. only | Clay West (Wilcox 10400) | Live Oak | 1 | 123K | 3.27M | Sep 2010 – Jun 2022 |
| 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 – Aug 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 | by 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 |
| Clay West A G-2-187006 | Kebo Oil & Gas, Inc. only | Clay West S. (Queen City) | Live Oak | 1 | 94.8K | 4.11M | Jun 2001 – Apr 2025 |
| Wilkins, Mabel G-3-95901 | Seneca Resources Corporation only | Clay, NE (Austin Chalk 11350) | Burleson | 1 | 92.7K | 2.3M | by 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 – Jul 2026 |
| Wilkins, Mabel G-3-143940 | Verdun Oil & Gas LLC only | Clay, NE (Austin Chalk 11350) | Burleson | 1 | 85.1K | 1.74M | by Jan 1993 – Jul 2026 |
| Arhopulos-Brazos Unit G-3-144778 | Williams, Clayton Energy, Inc. only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 84.9K | 2.42M | Mar 1993 – Jul 2013 |
| 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 |
| Colby-Claypool G-3-189814 | Denbury Onshore, LLC only | Elwood (L. Vicksburg 13200 SD) | Chambers | 1 | 70.4K | 5.21M | May 2002 – Sep 2005 |
| 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 |
| Patrick Hugh Burns G-2-254984 | Jamex, Inc. only | Clay West (Wilcox 10400) | Live Oak | 1 | 65.9K | 1.48M | Jan 2010 – Dec 2016 |
| Yegua-Ware Unit G-3-144138 | Magnolia Oil & Gas Operating LLC only | Clay, NE (Austin Chalk 11350) | Burleson | 1 | 63K | 1.3M | by Jan 1993 – Jul 2016 |
| Skaggs Block 84 G-2-128170 | Hedrick Production Inc. only | Clayton (Block 86 SD) | Live Oak | 1 | 60.4K | 3.34M | by Jan 1993 – 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 |
| 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 – Aug 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 – Aug 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 | by Jan 1993 – Oct 1995 |
| 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 |
| 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 – Aug 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 | by 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 | 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 |
| Clayton, C. A. G-6-97653 | Culver & Cain Production LLC only | Larissa (Rodessa) | Cherokee | 1 | 38.3K | 1.85M | by Jan 1993 – Aug 2026 |
| Moore, Jesse "A" G-3-149245 | Verdun Oil & Gas LLC only | Clay, N.E. (Austin Chalk, Gas) | Burleson | 1 | 37.9K | 1.36M | Jan 1994 – Aug 2026 |
| Burns Gas Unit G-2-158332 | Wagner Oil Company only | Clay West (Wilcox Lower) | Live Oak | 1 | 36.2K | 1.46M | Apr 1996 – Dec 2012 |
| Block 75 Unit G-2-137182 | Hedrick Production Inc. only | Clayton (Block 75 SD) | Live Oak | 1 | 35.6K | 2.28M | by Jan 1993 – Oct 1998 |
| Claypool Estate 5-19 G-10-256880 | Permian Resources Operating, LLC only | Balmorea (Wolfcamp) | Reeves | 1 | 34.3K | 155K | May 2010 – Jul 2026 |
| Terrell Unit G-3-146589 | Seneca Resources Corporation only | Clay, NE (Austin Chalk 11350) | Brazos | 1 | 33.9K | 816K | Jul 1993 – Aug 1999 |
| Clay Creek G-3-151424 | Enervest Operating, L.L.C. only | Giddings (Austin Chalk, Gas) | Washington | 1 | 31.6K | 2.62M | Aug 1994 – May 2011 |
| Colby-Claypool G-3-84495 | Kerr-McGee Oil & Gas Onshore LLC only | Elwood (Vicksburg) | Chambers | 1 | 28.2K | 2.36M | by Jan 1993 – Jul 2003 |
| Waldorf-Schehin G-3-145817 | Pride Energy Company only | Clay, NE (Austin Chalk 11350) | Brazos | 1 | 23K | 825K | Apr 1993 – Jun 2002 |
| Block 75 Unit G-2-171548 | Hedrick Production Inc. only | Clayton (Massive) | Live Oak | 1 | 20.9K | 1.61M | Nov 1998 – Sep 2003 |
| Wilkins, Mabel G-3-192027 | Southwest Resources, Inc. only | Clay, NE (Austin Chalk 11350) | Burleson | 1 | 19.6K | 1.1M | Nov 2001 – Apr 2022 |
| Ryan, Nolan G-2-217553 | Aurora Resources Corporation only | Clayton (Wilcox 6875) | Live Oak | 1 | 19.2K | 932K | Oct 2005 – Mar 2010 |
| Block 75 Unit G-2-182271 | Sage Energy Company only | Clayton (Wilcox 7720) | Live Oak | 1 | 19K | 1.21M | Jan 2001 – Jul 2008 |
| Clay Farms G-3-202564 | Proline Energy Resources Inc only | Giddings (Austin Chalk, Gas) | Burleson | 1 | 18.6K | 1.34M | Mar 2004 – Aug 2026 |
| Moore, Jessie G-3-140026 | Garrison Ltd. only | Clay, N.E. (Austin Chalk, Gas) | Burleson | 1 | 17.3K | 437K | by Jan 1993 – Mar 1995 |
| Barnhart-Mayfair Unit G-3-136657 | Verdun Oil & Gas LLC only | Clay, N.E. (Austin Chalk, Gas) | Burleson | 1 | 16.7K | 1.08M | by Jan 1993 – Aug 2026 |
| Block 75 Unit G-2-182040 | Sage Energy Company only | Clayton (Block 72 Sd.) | Live Oak | 1 | 15.2K | 874K | Feb 2001 – Oct 2010 |