| Clayton "A" O-13-23846 | LKM Oil and Gas LLC only | Lost Horizons (Miss.) | Jack | 1 | 11.4K | 136K | by Jan 1993 – Jul 2026 |
| Hill O-13-16437 | Oakridge Oil and Gas, LP only | Clay County Regular | Clay | 2 | 11.4K | 2.72K | by Jan 1993 – Nov 2022 |
| Schroeder, Alda et Al G-4-84055 | Altalay STX LLC only | Alworth (Queen City) | Zapata | 1 | 11.4K | 1.48M | by Jan 1993 – Jun 2011 |
| Cr'g' Tract 3C O-11-70120 | Scout Energy Management LLC only | Clayton Ranch, N. (Spraberry) | Borden | 1 | 11.3K | 4.48K | Apr 2013 – Sep 2017 |
| Clay, T.C. O-3-11680 | Brenham Drilling Co. only | Clay Creek | Washington | 3 | 11.3K | 119 | by Jan 1993 – Aug 2026 |
| Jackson O-1-14001 | Hamilton, Clay only | Pena Creek (San Miguel 3RD) | Dimmit | 1 | 11.2K | 4.44K | Oct 1995 – Aug 2012 |
| Lewis-Monical O-3-23375 | Williams, Clayton Energy, Inc. only | Giddings (Buda) | Burleson | 1 | 11.2K | 3.94K | Oct 1997 – Jul 2006 |
| Block 86 Unit G-2-144903 | Hedrick Production Inc. only | Clayton (Block 85 SD) | Live Oak | 1 | 11.2K | 1.74M | by Jan 1993 – Jun 2004 |
| Wintershall-Kersh Unit O-1-13281 | Williams, Clayton Energy, Inc. only | Pearsall (Austin Chalk) | La Salle | 1 | 11.1K | 12.2K | by Jan 1993 – Apr 1995 |
| Slay O-13-17340 | Milagro Exploration, LLC only | Morris (Consolidated Congl.) | Wise | 9 | 11.1K | 434K | by Jan 1993 – Jun 2006 |
| Garza "B" Unit O-3-15641 | Williams, Clayton Energy, Inc. only | Giddings (Austin Chalk-3) | Brazos | 2 | 11K | 175K | by Jan 1993 – Dec 1999 |
| Santa FE Runnels O-3-17951 | Omega Energy, LLC only | Clay Point, South (Wilcox) | Newton | 1 | 11K | 21 | by Jan 1993 – May 2014 |
| Block 76 Unit G-2-130278 | Hedrick Production Inc. only | Clayton (Wilcox 7360) | Live Oak | 1 | 11K | 545K | by Jan 1993 – Jun 2004 |
| Harkins-Lay O-2-7350 | Salt Creek Production, Inc. only | Dinero, W. (Yegua 5330) | Live Oak | 1 | 10.9K | 49.6K | by Jan 1993 – Apr 1999 |
| Saner-Lomax O-13-1464 | Bridwell Oil Co. only | Clay County Regular | Clay | 27 | 10.9K | 21 | by Jan 1993 – Oct 1996 |
| Marsha-Elliott G-3-141704 | Rosewood Resources, Inc. only | Clay, NE (Austin Chalk 12200) | Brazos | 1 | 10.9K | 558K | by Jan 1993 – Feb 1999 |
| CR 'a' (Tract 4) O-11-68875 | Primexx Operating Corporation only | Clayton Ranch, N. (Spraberry) | Borden | 1 | 10.8K | 6.15K | Oct 2005 – Mar 2009 |
| Hinnant A O-2-9066 | Double Play Oil & Gas, Inc only | Rhomac (Yegua 1) | Live Oak | 1 | 10.8K | 69K | Mar 2006 – Sep 2007 |
| Willbern O-2-10571 | Double Play Oil & Gas, Inc only | Barvo (Yegua Sand) | Karnes | 1 | 10.7K | 0 | Jan 2013 – Nov 2022 |
| Block 75 Unit G-2-198181 | Hedrick Production Inc. only | Clayton (Slick 6500) | Live Oak | 1 | 10.7K | 870K | Oct 2003 – Aug 2026 |
| Mayo O-13-13441 | Arch Operating, LLC only | Clay County Regular | Clay | 6 | 10.6K | 119 | by Jan 1993 – Aug 2026 |
| Stubblefield, Frankie -A- O-10-24636 | Williams, Clayton Energy, Inc. only | Jameson, North (Strawn) | Mitchell | 2 | 10.6K | 2.45K | by Jan 1993 – Jan 2001 |
| Barry O-13-1554 | Sharp, Cherry L only | Clay County Regular | Clay | 15 | 10.5K | 14 | by Jan 1993 – Aug 2026 |
| Kachtik, Thomas Unit O-3-15850 | Williams, Clayton Energy, Inc. only | Giddings (Austin Chalk-3) | Burleson | 1 | 10.4K | 261K | by Jan 1993 – Mar 2001 |
| William Clay Fr. Foundation O-11-67610 | Blue Ridge Resources, LLC only | Patricia (Spraberry) | Dawson | 1 | 10.3K | 18.7K | Sep 1996 – Jan 2001 |
| Nicholson Heirs Unit O-1-12373 | Williams, Clayton Energy, Inc. only | Pearsall (Austin Chalk) | Frio | 1 | 10.3K | 21 | by Jan 1993 – Oct 1997 |
| Clay, H. R. East O-10-48010 | Wash, Robert C. Inc. only | Howard Glasscock (Consolidated) | Howard | 3 | 10.2K | 1 | Nov 2014 – May 2026 |
| Brown, Lewis O-13-28775 | Bridwell Oil Co. only | Clay County Regular | Clay | 1 | 10.2K | 23.2K | Apr 1994 – Aug 2004 |
| Ryan, Nolan G-2-223792 | Aurora Resources Corporation only | Clayton (Wilcox 7370-Herring SD) | Live Oak | 1 | 10.1K | 575K | Aug 2006 – Sep 2011 |
| Layden, Pete G-2-121276 | Ken Petroleum Corporation only | Lost Bridge (Yegua 7900) | Jackson | 1 | 10.1K | 774K | by Jan 1993 – Dec 1998 |
| Brunson "B" O-10-42323 | Williams, Clayton Energy, Inc. only | Slash Ranch (Wolfcamp) | Loving | 1 | 10.1K | 0 | Nov 2011 – Sep 2012 |
| Clay, Wm. Jr. Foundation O-11-68299 | Sagebrush Oilandgas Company,llc only | Patricia (Fusselman) | Dawson | 1 | 10.1K | 8.18K | Feb 2001 – Jan 2008 |
| Taylor, C. T. -43- O-13-25678 | Goodner, Rob Oil Interest only | Clay County Regular | Clay | 7 | 10.1K | 21 | by Jan 1993 – May 2013 |
| Schroeder, Alda G-4-78905 | Altalay STX LLC only | Alworth (Queen City) | Zapata | 1 | 10K | 1.08M | by Jan 1993 – Oct 2022 |
| Casey Heirs G-3-172851 | Layton Energy Inc. only | Alligator Bayou (Tex Warreni) | Chambers | 1 | 10K | 494K | Sep 1998 – Nov 2009 |
| Nigliazzo O-3-20897 | Williams, Clayton Energy, Inc. only | Kurten (Austin Chalk) | Robertson | 1 | 10K | 102 | by Jan 1993 – Feb 2006 |
| Hilton-Yegua Unit G-3-141258 | McDaniel Company, Inc., The only | Clay, NE (Austin Chalk 11350) | Burleson | 1 | 9.98K | 212K | by Jan 1993 – Apr 2000 |
| Calvin Lay Unit O-3-26679 | Leexus Oil LLC only | Serbin (Taylor Sand) | Lee | 1 | 9.8K | 21.4K | Jun 2014 – Apr 2017 |
| Matcek, Joseph Unit O-3-15312 | Williams, Clayton Energy, Inc. only | Giddings (Austin Chalk-3) | Burleson | 1 | 9.79K | 178K | by Jan 1993 – Oct 1999 |
| Rowdy O-13-31632 | Muirfield Exploration, Ltd. only | Clay County Regular | Clay | 7 | 9.79K | 0 | Jun 2010 – Aug 2026 |
| Bennett G-2-226799 | Double Play Oil & Gas, Inc only | La Salle (6300) | Jackson | 1 | 9.78K | 528K | Jan 2007 – Aug 2025 |
| Union Texas Hugo O-1-12796 | Williams, Clayton Energy, Inc. only | Pearsall (Austin Chalk) | Frio | 1 | 9.73K | 2.54K | by Jan 1993 – Mar 1995 |
| Goodroe, Reba O-6-1977 | Layline Petroleum I, LLC only | Woodlawn | Marion | 1 | 9.71K | 137 | by Jan 1993 – Sep 2004 |
| Lay O-1-18524 | R & S Oil Production Co. only | Luling-Branyon | Caldwell | 1 | 9.61K | 0 | Dec 2014 – Oct 2024 |
| CR Foster O-10-41093 | Williams, Clayton Energy, Inc. only | Spraberry (Trend Area) | Glasscock | 4 | 9.61K | 6.7K | Mar 2011 – Aug 2012 |
| Clark, Clay O-2-8102 | Sulphur River Exploration, Inc. only | WORD,N(8300) | Lavaca | 2 | 9.58K | 103K | Aug 1995 – Jan 2017 |
| Gold-Ryan Unit O-3-15470 | Williams, Clayton Energy, Inc. only | Giddings (Austin Chalk-3) | Burleson | 1 | 9.56K | 44.1K | by Jan 1993 – Oct 1999 |
| Scaling Ranch O-13-32370 | Addax Operating, LLC only | Clay County Regular | Clay | 2 | 9.49K | 19.9K | Aug 2011 – Oct 2017 |
| Cave, J. W. O-8-26101 | Ohlhausen Oil Company only | Claytonville (Canyon Sand) | Fisher | 2 | 9.46K | 170K | by Jan 1993 – Jul 2026 |
| Scott O-13-30109 | Interstate Explorations LLC only | Clay County Regular | Clay | 1 | 9.18K | 0 | Jan 2003 – Dec 2018 |