| Clayton O-13-27044 | Sabre Operating, Inc. only | Clayton (Miss) | Jack | 1 | 80.5K | 735 | by Jan 1993 – Apr 2004 |
| LMT O-11-70956 | Winn Operating, LLC only | Clayton Ranch, N. (Spraberry) | Borden | 1 | 78.9K | 0 | Jul 2019 – 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 |
| Cocke, W. H. O-3-7919 | Layton Energy Inc. only | Alligator Bayou, W. (6765) | Chambers | 1 | 75.3K | 15.9K | Mar 1993 – Sep 2004 |
| Morgan O-3-21897 | Williams, Clayton Energy, Inc. only | Giddings (Austin Chalk-3) | Brazos | 2 | 74.5K | 471K | by Jan 1993 – May 2013 |
| Clayton-Johnson "22" -A- O-11-66885 | Fagadau Energy Corporation only | Clayton Ranch, N. (Spraberry) | Borden | 1 | 73.1K | 73.5K | by Jan 1993 – Jul 1995 |
| Kincaid O-1-12402 | Williams, Clayton Energy, Inc. only | Pearsall (Austin Chalk) | Frio | 2 | 72.6K | 75.4K | by Jan 1993 – Sep 1998 |
| Layton -A- O-1-10500 | XTO Energy Inc. only | A.W.P. (Olmos) | McMullen | 3 | 71K | 21 | by Jan 1993 – Feb 2025 |
| Clayton-Johnson "D" O-11-65283 | Fagadau Energy Corporation only | Clayton Ranch, N. (Spraberry) | Borden | 2 | 69.5K | 84.3K | by Jan 1993 – Jul 1995 |
| Paradise O-1-4664 | Williams, Clayton Energy, Inc. only | Pearsall (Austin Chalk) | Frio | 12 | 67.4K | 21 | by Jan 1993 – Nov 1996 |
| Herring Ranch O-2-8823 | Ampak Oil Company only | Clayton, NE. (Queen City -H-) | Live Oak | 5 | 65K | 105K | Sep 2003 – Jul 2026 |
| Supak-Royall Unit O-3-24015 | Williams, Clayton Energy, Inc. only | Giddings (Austin Chalk-3) | Milam | 1 | 64.8K | 13.8K | Apr 2001 – Jan 2011 |
| Clayton-Johnson O-11-60853 | QP, Inc. only | Luck-Pot (Canyon Reef) | Borden | 1 | 61.1K | 19.2K | by Jan 1993 – Aug 2026 |
| 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 |
| Cody-Clayton O-11-66356 | Reverence Operating LLC only | Adair | Terry | 1 | 56.6K | 21 | by Jan 1993 – Jun 2024 |
| Clayton, J M O-9-11464 | 3-D Oil & Gas only | Midstates (Winchell) | Runnels | 2 | 56.6K | 220K | by Jan 1993 – Dec 2018 |
| Nelson "A" O-2-9114 | Inland Ocean, Inc. only | Clayton (Massive) | Live Oak | 1 | 56.1K | 0 | Nov 2006 – Jan 2021 |
| Hudson-Destefano Unit O-3-22729 | Williams, Clayton Energy, Inc. only | Giddings (Buda) | Robertson | 1 | 54.3K | 27.9K | Apr 1995 – Feb 1998 |
| Burns "E" O-1-12806 | Williams, Clayton Energy, Inc. only | Pearsall (Austin Chalk) | La Salle | 2 | 54.1K | 37.2K | by Jan 1993 – Oct 2004 |
| Woodward-Burns O-1-12684 | Williams, Clayton Energy, Inc. only | Pearsall (Austin Chalk) | Frio | 2 | 54.1K | 21 | by Jan 1993 – Oct 2011 |
| Clayton O-11-69603 | Yukon Exploration Operating, LLC only | Good, Northeast (Canyon Reef) | Borden | 2 | 52K | 37.6K | Jul 2010 – Jul 2026 |
| Ashlock Unit O-3-21848 | Williams, Clayton Energy, Inc. only | Kurten (Buda) | Brazos | 1 | 51.5K | 30.9K | by Jan 1993 – Jan 1997 |
| Clayton, D. C. O-13-3592 | Quest-Tex Energy OP II, LLC only | Bryson (Mississippi Lime) | Jack | 1 | 50.2K | 144K | by Jan 1993 – Jun 2015 |
| Brown - Accurso Unit O-3-21044 | Williams, Clayton Energy, Inc. only | Giddings (Austin Chalk-3) | Burleson | 1 | 47.7K | 375K | by Jan 1993 – Sep 2011 |
| Fee -A- O-1-4946 | Williams, Clayton Energy, Inc. only | Pearsall (Austin Chalk) | Frio | 15 | 47.6K | 21 | by Jan 1993 – Mar 1998 |
| Wetsel O-8-30214 | Grayrock Energy II, LLC only | Claytonville (Canyon Sand) | Fisher | 3 | 46.4K | 649K | Nov 2008 – Aug 2026 |
| Kidd BC O-8-31403 | Gunn Oil Company only | Claytonville, N. (Palo Pinto) | Fisher | 3 | 46.4K | 22.4K | Oct 2013 – Sep 2021 |
| 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 |
| Davis Unit O-3-21706 | Williams, Clayton Energy, Inc. only | Kurten (Buda) | Brazos | 1 | 45.5K | 31.8K | by Jan 1993 – Aug 2001 |
| Pete Scarmardo Unit O-3-20984 | Williams, Clayton Energy, Inc. only | Giddings (Austin Chalk-3) | Burleson | 1 | 45K | 168K | by Jan 1993 – Apr 2005 |
| Clayton Ranch C O-13-32682 | Oakridge Oil and Gas, LP only | KRS (Marble Falls) | Jack | 4 | 44.1K | 496K | Jun 2013 – Feb 2019 |
| Bonnett, Norman N. O-9-6883 | Texas International Resource LLC only | Lena Clayton (Serratt) | Runnels | 6 | 43.4K | 1.39K | by Jan 1993 – Dec 2010 |
| Clayton, M. C. O-13-31851 | Rio Bravo Production, LLC only | Bryson, East | Jack | 3 | 41.8K | 4.63K | Sep 2011 – Aug 2026 |
| Gold, Mary "A" O-3-15216 | Williams, Clayton Energy, Inc. only | Giddings (Austin Chalk-3) | Burleson | 2 | 41.4K | 420K | by Jan 1993 – Mar 2001 |
| Clayton, Jerry B. "B" O-11-68296 | Baylor Operating, LLC only | JO-Mill (Spraberry) | Borden | 2 | 40.8K | 17.8K | Aug 2000 – Mar 2016 |
| Wise Unit O-3-22281 | Williams, Clayton Energy, Inc. only | Giddings (Austin Chalk-3) | Brazos | 1 | 39.7K | 27.5K | Jun 1993 – Feb 1998 |
| Nicholson Unit O-1-12754 | Williams, Clayton Energy, Inc. only | Pearsall (Austin Chalk) | Frio | 1 | 39K | 26K | by Jan 1993 – May 1998 |
| Clayton, C. A. G-6-97653 | Culver & Cain Production LLC only | Larissa (Rodessa) | Cherokee | 1 | 38.3K | 1.85M | by Jan 1993 – Aug 2026 |
| State Tract 206 G-3-216134 | Layton Energy Inc. only | Red Fish Reef, North (Frio 7920 | Chambers | 1 | 37.9K | 511K | Mar 2005 – Nov 2010 |
| Clayton & Johnson O-11-67193 | Brown, H.L. Operating, L.L.C. only | JO-Mill (Spraberry) | Borden | 1 | 37.4K | 8.81K | May 1993 – Jan 2003 |
| Layton "A" G-1-260178 | XTO Energy Inc. only | Hawkville (Eagleford Shale) | McMullen | 1 | 36.8K | 153K | Nov 2010 – Dec 2015 |
| Armstrong Unit O-3-21346 | Williams, Clayton Energy, Inc. only | Giddings (Austin Chalk-3) | Brazos | 1 | 36.7K | 235K | by Jan 1993 – Jan 2001 |
| Krause, A.M. O-3-20225 | Williams, Clayton Energy, Inc. only | Giddings (Austin Chalk-3) | Lee | 1 | 36.7K | 3.45K | by Jan 1993 – Apr 2007 |
| Clayton, J. R. O-13-11746 | B.O.L.D. Oil and Gas, LLC only | Jack County Regular | Jack | 1 | 36K | 5.83K | by Jan 1993 – Aug 2026 |
| McGruder-Anderson Unit O-3-21933 | Williams, Clayton Energy, Inc. only | Giddings (Austin Chalk-3) | Brazos | 2 | 35.9K | 288K | Mar 1993 – Mar 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 |
| C.P. Clayton O-13-3593 | D L Operating only | Bryson (Mississippi Lime) | Jack | 1 | 35.1K | 33.9K | by Jan 1993 – Aug 2026 |
| McCain 189 O-8-31764 | R2Q Operating LLC only | Claytonville (Canyon Sd. 5200) | Fisher | 1 | 34.7K | 255K | Feb 2015 – Aug 2026 |
| Clayton, A.M. "B" O-11-13679 | Cimarex Energy Co. of Colorado only | Good, SE. (Fusselman) | Borden | 1 | 33.8K | 18.7K | by Jan 1993 – Oct 1998 |
| Clayton Ranch B O-13-32498 | Oakridge Oil and Gas, LP only | KRS (Marble Falls) | Jack | 2 | 33K | 676K | Feb 2013 – Aug 2026 |