| 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 |
| 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 |
| Stern - Liska O-4-14024 | Double Play Oil & Gas, Inc only | Minnie Bock, N. (Bertram Sand) | Nueces | 1 | 52.4K | 58.9K | Oct 2016 – Jul 2022 |
| McNeill O-2-9264 | Double Play Oil & Gas, Inc only | Dinero, West (Hockley) | Live Oak | 1 | 52.4K | 16.5K | Jun 2008 – May 2022 |
| Clayton O-11-69603 | Yukon Exploration Operating, LLC only | Good, Northeast (Canyon Reef) | Borden | 2 | 52K | 37.6K | Jul 2010 – Jul 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 |
| Ashlock Unit O-3-21848 | Williams, Clayton Energy, Inc. only | Kurten (Buda) | Brazos | 1 | 51.5K | 30.9K | by Jan 1993 – Jan 1997 |
| Clay, H. R. -B- O-10-2745 | Robertson Resources, Inc. only | Howard Glasscock | Howard | 4 | 51.4K | 27 | by Jan 1993 – Oct 2014 |
| Clay 14 O-10-43940 | EOG Resources, Inc. only | Spraberry (Trend Area) | Dawson | 1 | 51.3K | 26K | Apr 2013 – Sep 2022 |
| Clay, H.R.-McNalen O-10-2777 | Quantum Resources Management,llc only | Howard Glasscock | Howard | 19 | 50.8K | 594 | by Jan 1993 – Nov 2011 |
| 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 |
| SPL Echols & Clay "268" O-10-39827 | EOG Resources, Inc. only | Spraberry (Trend Area) | Dawson | 1 | 49.5K | 33.5K | Oct 2009 – Feb 2024 |
| Taylor, Owen O-6-12614 | Atlantis Oil Company, Inc. only | Lisa Layne (Subclarksville) | Wood | 1 | 49.4K | 15.9K | by Jan 1993 – Jul 2026 |
| New "A" G-2-247541 | Double Play Oil & Gas, Inc only | Johnstone (Lower Frio) | Victoria | 1 | 49.2K | 53K | Oct 2008 – Aug 2014 |
| Laplaya Mid Frio Unit G-4-207584 | Modena Operating LLC only | Dunn-McCampbell (Frio, Mid) | Kleberg | 1 | 47.9K | 4.77M | Oct 2004 – Nov 2009 |
| 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 |
| Bmks O-13-13983 | Bud Oil, Inc. only | McKinlay (Strawn) | Clay | 5 | 46.4K | 19 | by Jan 1993 – 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 |
| Moore O-2-8895 | Double Play Oil & Gas, Inc only | Mikeska, SW. (Pettus Stringer) | Live Oak | 1 | 46.3K | 0 | Jan 2003 – Jun 2024 |
| 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 |
| 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 |
| Pete Scarmardo Unit O-3-20984 | Williams, Clayton Energy, Inc. only | Giddings (Austin Chalk-3) | Burleson | 1 | 45K | 168K | by Jan 1993 – Apr 2005 |
| Clay, H. R. O-10-2682 | O'Ryan Oil and Gas only | Howard Glasscock | Howard | 12 | 44.8K | 84 | by Jan 1993 – Nov 2011 |
| Johnston, Clay O-11-11897 | Viejo Oil & Gas, LLC only | P. H. D. | Garza | 2 | 44.6K | 20 | by Jan 1993 – Aug 2026 |
| Booth O-13-19208 | Canyon Oil & Gas LLC only | Clay County Regular | Clay | 5 | 44.4K | 21 | by Jan 1993 – Nov 2021 |
| Clayton Ranch C O-13-32682 | Oakridge Oil and Gas, LP only | KRS (Marble Falls) | Jack | 4 | 44.1K | 496K | Jun 2013 – Feb 2019 |
| Taylor Estate, Etal O-13-1551 | Muirfield Exploration, Ltd. only | Clay County Regular | Clay | 22 | 44.1K | 61 | by Jan 1993 – Aug 2026 |
| Dunn, Melton O-13-20730 | Allen, C. L. (Doie) only | Clay County Regular | Clay | 4 | 44K | 66 | by Jan 1993 – Dec 2025 |
| 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 |
| 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 |
| Taylor Heirs O-6-14501 | Burk Royalty Co., Ltd. only | Fairplay, NE. (Travis Peak) | Panola | 1 | 42.4K | 478K | Jan 2006 – Aug 2026 |
| Cmtt O-13-1534 | R2Q Operating LLC only | Clay County Regular | Clay | 30 | 42.2K | 35 | by Jan 1993 – Aug 2026 |
| Lay, Leon O-1-3603 | Riverstone Operating LLC only | Luling-Branyon | Caldwell | 12 | 41.9K | 48.6K | by Jan 1993 – Aug 2026 |
| 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 |
| Clay, H. R. O-10-2690 | Breitburn Operating L.P. only | Howard Glasscock | Howard | 23 | 41.3K | 4.74K | by Jan 1993 – Nov 2011 |
| Stine Estate O-13-11827 | Armour, Widd only | Clay County Regular | Clay | 21 | 41.3K | 143 | by Jan 1993 – Aug 2026 |
| Veitenheimer -B- O-13-10753 | Macha Enterprises, Inc. only | Clay County Regular | Clay | 7 | 41.2K | 24 | by Jan 1993 – Apr 2023 |
| Stine, Ward L. -M- O-13-20201 | Mountain Creek Oil Company, Inc. only | Clay County Regular | Clay | 11 | 40.9K | 23 | by Jan 1993 – Aug 2026 |
| Clayton, Jerry B. "B" O-11-68296 | Baylor Operating, LLC only | JO-Mill (Spraberry) | Borden | 2 | 40.8K | 17.8K | Aug 2000 – Mar 2016 |
| Mathews O-13-30893 | Pryor Petroleum Corporation only | Clay County Regular | Clay | 2 | 40.5K | 440 | Jan 2008 – Aug 2026 |
| George, W. A. et Al O-13-19870 | Arch Operating, LLC only | Clay County Regular | Clay | 20 | 40.1K | 79 | by Jan 1993 – 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 |