| Tytex 41-42 Unit O-10-49050 | Diamondback E&P LLC only | Hoefs T-K (Wolfcamp) | Pecos | 8 | 1.37M | 1.92M | Jul 2016 – Apr 2026 |
| Hicks, B.B. O-3-14116 | Sandel Operating Company only | Martin Prairie (Wilcox 4900) | Grimes | 1 | 572K | 367K | Jan 1993 – Apr 2016 |
| Knox 4 O-10-60740 | Diamondback E&P LLC only | Spraberry (Trend Area) | Martin | 2 | 502K | 930K | Apr 2023 – Apr 2026 |
| CVX 43 O-10-39072 | Crescent Energy Operating, LLC only | Goldsmith (Clear Fork) | Ector | 12 | 399K | 688K | Nov 2008 – Apr 2026 |
| Stroup-Kentex 48B O-10-54876 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 344K | 412K | Sep 2020 – Apr 2026 |
| Stroup-Kentex 48A O-10-54877 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 327K | 436K | Sep 2020 – Apr 2026 |
| Stroup-Kentex 48C O-10-54962 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 310K | 391K | Sep 2020 – Apr 2026 |
| CVX 43B O-10-41332 | Crescent Energy Operating, LLC only | Goldsmith (Clear Fork) | Ector | 8 | 298K | 446K | Jun 2011 – Apr 2026 |
| Davis Lynx 46 O-10-43801 | Lynx Operating Co., Inc. only | Spraberry (Trend Area) | Martin | 4 | 225K | 748K | Feb 2013 – Apr 2026 |
| Curtis, E.C. O-3-19388 | Sandel Operating Company only | Martin Prairie (Wilcox 4900) | Grimes | 1 | 143K | 62.9K | Jan 1993 – May 2019 |
| CVX 43 O-10-39705 | Crescent Energy Operating, LLC only | Goldsmith | Ector | 3 | 110K | 175K | Jun 2009 – Apr 2026 |
| Sluice Box 4-2 O-10-41762 | Callon Petroleum Operating Co only | Phantom (Wolfcamp) | Reeves | 1 | 105K | 762K | Apr 2011 – Sep 2023 |
| Duval County Ranch Co.-K- O-4-6927 | Texas Petroleum Investment Co. only | Charamousca, W. (Wilcox 4) | Duval | 2 | 44.6K | 51.6K | Jan 1993 – Aug 2018 |
| CVX 43B O-10-47129 | Crescent Energy Operating, LLC only | Goldsmith | Ector | 1 | 30.1K | 55.8K | Dec 2013 – Apr 2026 |
| Big Max 4 O-10-42167 | Zarvona Energy LLC only | Spraberry (Trend Area) | Andrews | 1 | 29.2K | 30K | Dec 2011 – Apr 2026 |
| Dcrc-Sec. 3A O-4-12313 | Tri-C Resources, Inc. only | Moca (Wilcox 4700) | Webb | 1 | 24.4K | 52.1K | Mar 1994 – Jun 1995 |
| William Rice Institute G-3-76803 | Quail Creek Oil Corporation only | Hicksbaugh (Wilcox 4-A) | Tyler | 1 | 16.5K | 208K | Apr 1994 – Nov 1999 |
| Johnston-Lane O-1-13847 | Express Oil Co. only | M.E.I (Wilcox 4300) | Gonzales | 1 | 15.2K | 27 | Mar 1994 – Apr 2008 |
| Dcrc-Sec. 3 O-4-12223 | Tri-C Resources, Inc. only | Moca (Wilcox 4700) | Webb | 1 | 13.8K | 25.3K | Jul 1993 – Apr 1994 |
| Lessor, Mary Etta O-4-12226 | Conoco Inc. only | Big Cowboy (Wilcox 4800) | Webb | 1 | 13.6K | 268K | Aug 1993 – Oct 1998 |
| Duval County Ranch Co. -K- O-4-7301 | Texas Petroleum Investment Co. only | Charamousca, W. (Wilcox 4, Lo.) | Duval | 1 | 12.4K | 36.7K | Jan 1993 – Aug 1997 |
| Carter Knox G-3-286933 | Wildfire Energy Operating LLC only | Hopewell (Wilcox 4700) | Grimes | 1 | 11.3K | 7.91M | Aug 2019 – Sep 2025 |
| Lewis O-3-27988 | Pride Energy Company only | Hopewell (Wilcox 4700) | Grimes | 1 | 9.26K | 538 | Jun 2022 – Apr 2026 |
| Drought Sec. 154 O-4-12247 | Petroleum Developments Int LLC only | Charamousca, W. (Wilcox 4 Seg E) | Duval | 1 | 7.75K | 625 | Aug 1993 – Jan 2019 |
| Lessor, Mary Etta G-4-142850 | Enron Oil & Gas Company only | Big Cowboy (Wilcox 4800) | Webb | 1 | 6.93K | 84.5K | Jan 1993 – Jul 1993 |
| Lehmann et Al G-3-277250 | Magnum Producing, LP only | Giddings (Wilcox 4500) | Fayette | 1 | 5.84K | 61.2K | Dec 2014 – May 2017 |
| Neblett O-3-23361 | Jin Petroleum LLC only | Martin Prairie (Wilcox 4900) | Grimes | 1 | 5.06K | 2.55K | Nov 1995 – Sep 1999 |
| William Rice Institute O-3-23747 | Quail Creek Oil Corporation only | Hicksbaugh (Wilcox 4-A) | Tyler | 1 | 4.68K | 29K | Dec 1999 – Mar 2007 |
| Cooke, C.N. "B" O-1-5799 | Null, W.M. Operations, Inc. only | Cooke (Wilcox 4100, West) | La Salle | 4 | 4.6K | 2.91K | Jan 1993 – Dec 1994 |
| Lehmann et Al O-3-25650 | Magnum Producing, LP only | Giddings (Wilcox 4500) | Fayette | 1 | 2.69K | 133K | May 2010 – Feb 2011 |
| Lessor, Mary Etta G-4-170712 | Conocophillips Company only | Big Cowboy (Wilcox 4800) | Webb | 1 | 1.94K | 52.7K | Oct 1998 – Apr 2002 |
| Duval County Ranch Company -K- O-4-8560 | Exxon Corp. only | Charamousca, W.(wilcox 4, Seg D) | Duval | 1 | 1.52K | 6.9K | Jan 1993 – Apr 1994 |
| Major Eleven G-3-193264 | Akg Operating Company only | Aggieland (Wilcox 4400) | Brazos | 1 | 819 | 329K | Feb 2003 – Feb 2008 |
| Cooke No. 25 Unit G-1-205596 | Lewis Petro Properties, Inc. only | Cooke (Wilcox 4100) | La Salle | 1 | 693 | 25.6K | Mar 2004 – Apr 2026 |
| East Texas Oil Co. Fee "G" O-3-22040 | Dstj Corporation only | Hicksbaugh (Wilcox 4-B) | Tyler | 1 | 640 | 5.07K | Jan 1993 – May 1994 |
| Triple Bar "A" G-1-155805 | Lewis Petro Properties, Inc. only | Tri Bar, North (Wilcox 4900) | La Salle | 1 | 408 | 173K | Jul 1995 – Sep 1997 |
| Tmpa G-3-150236 | Jamex, Inc. only | Galjour (Wilcox 4600) | Grimes | 1 | 358 | 14.2K | Mar 1994 – Aug 1995 |
| Dcrc-Sec. 3A G-4-156871 | Killam Oil Co., Ltd. only | Moca (Wilcox 4700) | Webb | 1 | 310 | 73.6K | Dec 1995 – Aug 1997 |
| D. W. Tribar 56 "C" G-1-178339 | Lewis Petro Properties, Inc. only | Tri Bar, North (Wilcox 4900) | La Salle | 1 | 183 | 227K | Jun 2000 – Dec 2002 |
| Lehmann-Zoch G-3-264922 | Magnum Producing, LP only | Giddings (Wilcox 4500) | Fayette | 1 | 125 | 101K | Feb 2012 – Nov 2013 |
| Cooke, C.N. "C" O-1-6072 | Tracker Oil & Gas, Inc. only | Cooke (Wilcox 4100, W. Res. 2) | La Salle | 1 | 62 | 19 | Jan 1993 – Oct 1999 |
| Palafox 47 G-4-182964 | Lewis Petro Properties, Inc. only | Las Tiendas (Olmos) | Webb | 1 | 45 | 391K | May 2001 – Apr 2026 |
| Lyssy -A- O-1-10494 | Lewis Petro Properties, Inc. only | Tri Bar, North (Wilcox 4900) | La Salle | 1 | 31 | 88 | Jan 1993 – Jun 1996 |
| Schletze, A.E. G-1-155859 | Lewis Petro Properties, Inc. only | Tri Bar, North (Wilcox 4900) | La Salle | 1 | 24 | 57.5K | Sep 1995 – Jul 2000 |
| Hin Palafox 40 G-4-212435 | Lewis Petro Properties, Inc. only | Las Tiendas (Olmos) | Webb | 1 | 14 | 222K | Jul 2005 – Apr 2026 |
| House G-1-247062 | Texas Lone Star Petroleum Corp. only | Cooke (Wilcox 4100) | La Salle | 1 | 6 | 36.5K | Dec 2008 – Dec 2011 |
| East Texas Oil Co. Fee "G" G-3-103376 | Dstj Corporation only | Hicksbaugh (Wilcox 4-B) | Tyler | 1 | 0 | 0 | — |
| Alderman, E. G-1-206680 | Blackbrush O & G, Inc. only | Stuart City (Wilcox 4100) | La Salle | 1 | 0 | 923 | Nov 2004 – Jan 2005 |
| Cooke -A- G-1-50713 | Lewis Petro Properties, Inc. only | Cooke (Wilcox 4100) | La Salle | 1 | 0 | 3.62K | Aug 2002 – Oct 2002 |
| Martin, Albert Mineral Trust G-1-176727 | Proline Energy Resources Inc only | Cooke (Wilcox 4600) | La Salle | 1 | 0 | 3.55K | Jan 2001 – Sep 2002 |