| Treadwell, John H. 70 O-9-8624 | Ridgeline Energy Inc. only | Fort McKavitt, N. (Canyon Lo.) | Schleicher | 2 | 19.1K | 114K | Jan 1993 – Apr 2006 |
| Read -A- O-10-25448 | Campana Petroleum Company only | Coahoma, N. (Fussel) | Howard | 6 | 19.1K | 584K | Jan 1993 – Oct 2015 |
| Propst O-8-17462 | Ableready, Inc. only | Probst-Anson (Flippen Lime) | Jones | 8 | 19.1K | 22 | Jan 1993 – Feb 2017 |
| Read, W. R. -B- O-10-2928 | Sweet Crude Operating LLC only | Iatan, North | Howard | 4 | 19K | 22 | Jan 1993 – Apr 2026 |
| Treadwell 35 G-14-274883 | Unbridled Resources, LLC only | Buffalo Wallow (Granite Wash) | Wheeler | 1 | 18K | 881K | Sep 2013 – Dec 2014 |
| Henard O-11-62420 | McClure Oil Company, Inc. only | Read (Wolfcamp) | Yoakum | 1 | 16.8K | 33 | Jan 1993 – Jun 2001 |
| Read, W. R. -C- O-10-2924 | Royalty Resources, L.L.C. only | Iatan, North | Howard | 3 | 16.6K | 21 | Jan 1993 – Jun 2017 |
| Pitchfork-Toreador LH O-11-67859 | Dreyfus, Louis Natural Gas Corp only | Landing Zone (Tannehill) | Dickens | 1 | 16.4K | 0 | Oct 1997 – Jan 2000 |
| Treadwell "H" O-8-28832 | Salty Lime Energy, LLC only | Throckmorton County Regular | Throckmorton | 2 | 15.6K | 60 | Jun 2000 – Dec 2024 |
| Treadwell, JBM PA2 O-8-28178 | Salty Lime Energy, LLC only | Throckmorton County Regular | Throckmorton | 1 | 14.5K | 96 | Jun 1997 – Oct 2021 |
| Treadwell Trust -19-B O-9-17617 | Boaz Energy II Operating, LLC only | Fort McKavitt, N. (Canyon) | Schleicher | 2 | 13.4K | 121K | Oct 2011 – Jun 2018 |
| Threadgill, Coolidge O-8-2468 | Sojourner Drilling Corporation only | Creslenn (Swastika) | Jones | 3 | 12.9K | 11 | Jan 1993 – Mar 2026 |
| Johnson-Threadgill Unit O-1-6635 | E. T. Oil Company only | Salt Flat, West | Caldwell | 2 | 12.2K | 14.5K | Jan 1993 – Apr 2026 |
| Treadwell PA2 O-8-28240 | Salty Lime Energy, LLC only | Throckmorton County Regular | Throckmorton | 2 | 12.2K | 82 | Aug 1997 – May 2004 |
| Read O-10-24532 | Campana Petroleum Company only | Coahoma (Miss) | Howard | 2 | 11K | 421K | Jan 1993 – Oct 2012 |
| Treadwell "K" O-8-28824 | Salty Lime Energy, LLC only | Throckmorton County Regular | Throckmorton | 2 | 9.94K | 61 | May 2000 – Dec 2024 |
| Ready Mix O-8-29507 | Cholla Petroleum, Inc. only | Sears | Nolan | 1 | 9.77K | 0 | Jan 2005 – Apr 2009 |
| Read, H. N. -D- O-10-21270 | Quantum Resources Management,llc only | Coahoma, N. (Fussel) | Howard | 1 | 9.22K | 199K | Jan 1993 – Jun 2006 |
| Threadgill, C. O-8-27648 | Beasley Well Service Inc. only | Creslenn (Swastika) | Jones | 1 | 9.05K | 0 | Jul 1995 – Feb 2020 |
| Treadwell 35 G-14-235636 | Unbridled Resources, LLC only | Buffalo Wallow (Granite Wash) | Wheeler | 1 | 9.02K | 442K | Dec 2007 – Jul 2016 |
| Treadwell 35 G-14-246498 | Unbridled Resources, LLC only | Buffalo Wallow (Granite Wash) | Wheeler | 1 | 8.78K | 540K | Nov 2008 – Jun 2019 |
| Heirs, Read G-13-128269 | BKV Barnett, LLC only | Boonsville (Bend Congl., Gas) | Wise | 1 | 8.55K | 556K | Jan 1993 – Apr 2026 |
| Pitchfork-Toreador LS O-11-67875 | WPX Energy Permian, LLC only | Silverspur (Tannehill) | Dickens | 1 | 8.42K | 0 | Dec 1997 – Sep 2006 |
| Cooper-Sullivan Unit O-5-3049 | Treadstone Energy Partners, LLC only | Alabama Ferry (Glenrose D, West) | Leon | 2 | 8.29K | 17.5K | Jan 1993 – May 2012 |
| Treadaway O-11-63591 | Vanguard Permian, LLC only | Brownfield, S. (Fusselman) | Terry | 1 | 8.22K | 1.12K | Jan 1993 – Mar 1997 |
| Threadgill "A" O-8-27533 | Beasley Well Service Inc. only | Creslenn (Swastika) | Jones | 1 | 8K | 0 | Mar 1995 – Mar 2015 |
| Read O-11-60320 | Simmons, L.B. Energy, Inc. only | Read (Wolfcamp) | Yoakum | 1 | 7.84K | 2.77K | Jan 1993 – Jul 1994 |
| Treadwell 3-D O-8-29361 | Salty Lime Energy, LLC only | Throckmorton County Regular | Throckmorton | 1 | 7.56K | 1.15K | Feb 2004 – Dec 2024 |
| Threadgill, R. V. O-1-13307 | R & S Oil Production Co. only | Bateman (Austin Chalk) | Caldwell | 2 | 7.39K | 50 | Jan 1993 – Apr 2026 |
| Treadwell 35 G-14-241143 | Unbridled Resources, LLC only | Buffalo Wallow (Granite Wash) | Wheeler | 1 | 6.99K | 313K | Jun 2008 – Aug 2015 |
| Treadwell 35 G-14-217358 | 4P Energy Texas, LLC only | Buffalo Wallow (Granite Wash) | Wheeler | 1 | 6.88K | 362K | Apr 2006 – Jan 2015 |
| Flowers Read 28 G-14-277947 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 6.66K | 1.33M | Jan 2015 – Apr 2026 |
| Read, H. N. -D- G-10-217521 | Breitburn Operating L.P. only | Coahoma, N. (Fussel) | Howard | 1 | 6.61K | 30.1K | Jun 2006 – Feb 2014 |
| Treadwell 35 G-14-237102 | Unbridled Resources, LLC only | Buffalo Wallow (Granite Wash) | Wheeler | 1 | 6.58K | 456K | Mar 2008 – Mar 2015 |
| Treadwell 35 G-14-239826 | Unbridled Resources, LLC only | Buffalo Wallow (Granite Wash) | Wheeler | 1 | 6.08K | 396K | Apr 2008 – Aug 2017 |
| Read Unit G-13-266763 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 5.79K | 411K | Jun 2012 – Sep 2024 |
| Threadgill O-13-15430 | Hep Oil GP, LLC only | Montague County Regular | Montague | 1 | 5.68K | 105 | Jan 1993 – Jan 2002 |
| Arco-Read O-14-4406 | Burk Royalty Co., Ltd. only | Panhandle Hutchinson County Fld. | Hutchinson | 4 | 5.48K | 152K | Jan 1993 – Oct 2013 |
| Read, Verna G. O-11-60335 | Coastal Plains Energy, Inc. only | Ackerly (Dean Sand) | Dawson | 1 | 5.35K | 284 | Jan 1993 – May 2002 |
| JBM Treadwell "CW" O-8-28229 | Salty Lime Energy, LLC only | Throckmorton County Regular | Throckmorton | 1 | 5.3K | 93 | Aug 1997 – Apr 2013 |
| Read, W. R. -C- O-10-20108 | Circle H Oil Company only | Iatan, North | Howard | 2 | 5.27K | 22 | Jan 1993 – Aug 2004 |
| Read, H. N. -F- O-10-45496 | Bayswater Operating Company LLC only | Spraberry (Trend Area) | Howard | 1 | 5.14K | 41.1K | Aug 2014 – Jun 2018 |
| Kennedy-Cordz O-10-26198 | Treadaway Oil Co. only | Payton | Pecos | 1 | 4.96K | 23 | Jan 1993 – Aug 2007 |
| Braman, D. H. Jr. et Al G-2-145101 | Waters Eng. & Operating, Inc. only | Gingerbread (Frio 6720 Sd.) | Victoria | 1 | 4.74K | 21.4K | Feb 1993 – Apr 1993 |
| Threadgill, R. V. -C- O-1-12227 | All in Energy Production Corp. only | Bateman (Austin Chalk) | Caldwell | 1 | 4.69K | 45 | Feb 1993 – Jan 2026 |
| C.D. Read Trust 34 O-10-47386 | Paladin Petroleum III, L.L.C. only | Spraberry (Trend Area) | Howard | 1 | 4.5K | 30.7K | Sep 2015 – Jul 2018 |
| Read "B" O-11-68642 | Ring Energy, Inc. only | Sable (San Andres) | Yoakum | 1 | 4.48K | 0 | Nov 2003 – Jul 2016 |
| Read L G-14-206186 | Burk Royalty Co., Ltd. only | Panhandle, West | Hutchinson | 1 | 4.42K | 1.59M | Jun 2004 – Apr 2026 |
| Treadwell "A" O-8-28157 | Cottonwood Petroleum Co. only | Throckmorton County Regular | Throckmorton | 2 | 4.42K | 31 | Apr 1997 – Oct 1999 |
| Treadaway Unit O-10-44396 | Laredo Petroleum, Inc. only | Garden City, S. (Wolfcamp) | Mitchell | 1 | 4.32K | 0 | Mar 2013 – May 2013 |