| Clay, H. R. O-10-47933 | Wash, Robert C. Inc. only | Howard Glasscock (Consolidated) | Glasscock | 20 | 112K | 121 | Dec 2011 – Jul 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 |
| Vestring, et al Unit O-1-14244 | Hamilton, Clay only | Cebolla (3660) | Zavala | 1 | 107K | 37.9K | Apr 1999 – Aug 2026 |
| Stine O-13-1608 | Wills Oil Holdings, L.L.C. only | Clay County Regular | Clay | 5 | 106K | 20 | by Jan 1993 – Aug 2026 |
| Alliance Trust Unit O-5-3471 | Williams, Clayton Energy, Inc. only | Giddings (Austin Chalk-5) | Robertson | 1 | 106K | 44.9K | Nov 1993 – Aug 1994 |
| Anderson-Stephen Unit O-3-21896 | Williams, Clayton Energy, Inc. only | Giddings (Austin Chalk-3) | Brazos | 1 | 104K | 374K | by Jan 1993 – Jan 2012 |
| 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 |
| Halsell, Furd -A- O-13-15923 | Bridwell Oil Co. only | Clay County Regular | Clay | 7 | 104K | 21 | by Jan 1993 – Aug 2026 |
| Liggett, Maude O-13-19014 | Allen, C. L. (Doie) only | Clay County Regular | Clay | 3 | 103K | 60 | by Jan 1993 – Dec 2025 |
| Peters Unit O-3-21867 | Williams, Clayton Energy, Inc. only | Giddings (Austin Chalk-3) | Brazos | 1 | 103K | 675K | by Jan 1993 – Jul 2006 |
| J. R. Clayton Ranch (Caddo) Unit O-13-18600 | Bulwark Oil & Gas, LLC only | J. R. Clayton Ranch (Caddo) | Jack | 14 | 102K | 193K | by Jan 1993 – Aug 2026 |
| Coleman-Clayton (Allocation) O-3-26541 | Trailblazer Energy Resources,llc only | Halliday (Woodbine) | Leon | 1 | 102K | 525K | Mar 2013 – Aug 2026 |
| Lay "B" O-10-32837 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Midland | 1 | 102K | 304K | by Jan 1993 – Dec 2025 |
| 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 |
| Thornberry, Louella O-13-1552 | Muirfield Exploration, Ltd. only | Clay County Regular | Clay | 70 | 101K | 61 | by Jan 1993 – Aug 2026 |
| Clayton, Wm. O-7-8359 | Basa Resources, Inc. only | East Texas | Gregg | 12 | 99.8K | 87.2K | by Jan 1993 – Aug 2026 |
| Clayton, -Wm- B O-7-7514 | 4-Sight Operating Company, Ltd. only | East Texas | Gregg | 12 | 98K | 89.2K | by Jan 1993 – Aug 2026 |
| 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 |
| Clay Davis Unit O-1-18490 | Javelin Energy Partners Mgmt LLC only | Briscoe Ranch (Eagleford) | Atascosa | 1 | 93.9K | 78.9K | May 2015 – Jul 2025 |
| Johnson-Clayton O-11-65161 | Journey Operating, L.L.C. only | Good, SE. (Fusselman) | Borden | 1 | 93.8K | 307K | by Jan 1993 – Feb 2003 |
| 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 |
| Clayton O-7-6083 | Basa Resources, Inc. only | East Texas | Gregg | 9 | 91.4K | 48.2K | by Jan 1993 – Aug 2026 |
| Clark, Clay O-2-8444 | Capital Star Oil & Gas, Inc. only | Word, N. (8100) | Lavaca | 1 | 90.9K | 189K | Jan 1999 – Aug 2026 |
| Fleming Brothers O-13-1549 | RLS Oil Company only | Clay County Regular | Clay | 4 | 90.3K | 88 | by Jan 1993 – Aug 2026 |
| 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 |
| Clayton O-11-62925 | QP, Inc. only | Luck-Pot (Canyon Reef) | Borden | 1 | 87.1K | 70.3K | by Jan 1993 – Oct 2025 |
| Windle, H. O. O-13-20666 | Lindemann, Robert Operating only | Clay County Regular | Clay | 3 | 86.7K | 11.6K | by Jan 1993 – Aug 2026 |
| Clay, H. R.-A- O-10-41289 | Landmark IP, LLC only | Howard Glasscock (Consolidated) | Howard | 36 | 86.3K | 0 | Dec 2011 – May 2026 |
| Scaling "A" O-13-23597 | Lindemann, Robert Operating only | Clay County Regular | Clay | 5 | 85.4K | 36.2K | by Jan 1993 – Aug 2026 |
| Young, Clayton -C- O-7-7058 | Basa Resources, Inc. only | East Texas | Rusk | 2 | 85.4K | 82.2K | by Jan 1993 – Aug 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 |
| Baker, James A. O-1-12491 | Williams, Clayton Energy, Inc. only | Pearsall (Austin Chalk) | Frio | 2 | 84.8K | 141K | by Jan 1993 – Jul 1996 |
| 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 |
| Phillips-Clayton-Johnson O-11-68140 | Halvey Energy, LLC only | Luck-Pot (Canyon Reef) | Borden | 1 | 82.2K | 35.8K | Nov 1999 – Sep 2021 |
| State Tract 205 O-3-24556 | Layton Energy Inc. only | Red Fish Reef, N. (F2 7980 FB A) | Chambers | 1 | 82.1K | 261K | Mar 2004 – Aug 2012 |
| 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 |
| Clayton O-13-27044 | Sabre Operating, Inc. only | Clayton (Miss) | Jack | 1 | 80.5K | 735 | by Jan 1993 – Apr 2004 |
| Barclay, J. F., Etal O-3-5525 | Bent Wing Energy, LLC only | Martha, South (Flowers) | Liberty | 1 | 80.1K | 4.75K | by Jan 1993 – Aug 2026 |
| LMT O-11-70956 | Winn Operating, LLC only | Clayton Ranch, N. (Spraberry) | Borden | 1 | 78.9K | 0 | Jul 2019 – Aug 2026 |
| Myers, Viola Estate O-13-17583 | Lindemann, Robert Operating only | Clay County Regular | Clay | 7 | 76.5K | 22 | by Jan 1993 – Aug 2026 |
| Queen City B Unit #35&36 O-2-7391 | Hedrick Production Inc. only | Clayton (Queen City -B-) | Live Oak | 3 | 76.2K | 20 | by Jan 1993 – Jul 2012 |
| Wright-Corgey Unit O-2-9869 | Double Play Oil & Gas, Inc only | Barvo (Yegua Sand) | Goliad | 1 | 75.9K | 52.8K | Aug 2011 – Dec 2022 |
| Black Stone Minerals Company O-3-26913 | Tri-C Resources, LLC only | Clay Point, South (Wilcox) | Newton | 1 | 75.7K | 125K | Feb 2016 – Aug 2026 |
| Johnston, Clay "A" O-11-12336 | Viejo Oil & Gas, LLC only | P. H. D. | Garza | 2 | 75.6K | 20 | by Jan 1993 – Aug 2026 |
| Cocke, W. H. O-3-7919 | Layton Energy Inc. only | Alligator Bayou, W. (6765) | Chambers | 1 | 75.3K | 15.9K | Mar 1993 – Sep 2004 |
| Fields Waterflood Unit O-13-28508 | Bonfire Operating LLC only | Clay County Regular | Clay | 6 | 75.2K | 112K | Feb 1993 – Jun 2025 |
| Morgan O-3-21897 | Williams, Clayton Energy, Inc. only | Giddings (Austin Chalk-3) | Brazos | 2 | 74.5K | 471K | by Jan 1993 – May 2013 |