| Cox a 34 O-10-42964 | New Height Energy, LLC only | Spraberry (Trend Area) | Martin | 3 | 248K | 532K | Feb 2012 – May 2026 |
| Exxon Mineral Fee O-3-27260 | Rusk Energy Operating LLC only | Jacks Creek (Wilcox A) | Tyler | 2 | 217K | 624K | Nov 2016 – Aug 2026 |
| Kurth, J.H. Jr. Trustee et Al O-3-17967 | Indian Exploration, Inc. only | Blue Marsh (Wilcox A-4) | Newton | 1 | 203K | 143K | by Jan 1993 – Aug 2026 |
| Arco Fee O-3-24343 | New Century Exploration, Inc. only | Pebble Island, W. (Wilcox A-3) | Tyler | 1 | 192K | 31K | Mar 2003 – Jun 2026 |
| Arco-Beathard O-3-25462 | Davis Southern Operating Co LLC only | Bob Burr (Wilcox A-3) | Tyler | 1 | 149K | 383K | Sep 2008 – Jul 2026 |
| Bergman Atchley O-3-25127 | Enpower Resources Inc. only | Copeland Creek (Wilcox A-3) | Polk | 1 | 136K | 237K | Dec 2007 – Jul 2026 |
| Cox Alexander O-10-39221 | New Height Energy, LLC only | Spraberry (Trend Area) | Howard | 3 | 117K | 332K | Mar 2008 – Mar 2018 |
| Eagle Lake Gas Unit #1 G-3-279146 | Mag Exploration LLC only | Eagle Lake (Wilcox A-2) | Colorado | 1 | 81K | 2.18M | Jul 2015 – Feb 2020 |
| Arco Fee "A" O-3-18171 | Rotation, Incorporated only | Segno, N.E. (Wilcox A) | Polk | 1 | 79.3K | 49.6K | by Jan 1993 – Apr 2015 |
| BP Mercy Seat O-3-25610 | Neches Transport Inc. only | Mercy Seat (Wilcox a-3 SD) | Tyler | 1 | 78.3K | 27.1K | Sep 2010 – Aug 2026 |
| Borchers, Vivian G-2-132903 | Hydrocarbon Operating, Inc. only | Benbow (Lower Wilcox A) | Lavaca | 1 | 70.9K | 5.97M | by Jan 1993 – Aug 2026 |
| Cochran O-3-20728 | Finley Resources, Inc. only | Garwood, NW. (Wilcox A-3) | Colorado | 2 | 64.6K | 880K | by Jan 1993 – Apr 2018 |
| Cokinos, P. - Arco Fee O-3-22395 | A & D Exploration Company only | Blue Marsh (Wilcox A-4) | Newton | 1 | 63.9K | 2.57K | Apr 1994 – Oct 2010 |
| Kirby O-3-21436 | Neches Transport Inc. only | Highbaugh (Wilcox a-2 Sand) | Tyler | 3 | 62.5K | 736K | Feb 1995 – Aug 2026 |
| Exxon Fee O-3-22920 | Neches Transport Inc. only | Highbaugh (Wilcox a-2 Sand) | Tyler | 1 | 57.6K | 223K | Feb 1996 – Aug 2026 |
| Self Gas Unit G-1-167875 | Varas Energy Operating Company, only | Hostetter (Wilcox A) | Duval | 1 | 56.1K | 3M | Mar 1998 – Aug 2026 |
| Arco Fee "D" O-3-19069 | Rotation, Incorporated only | Segno, N.E. (Wilcox A) | Polk | 1 | 53.8K | 46.8K | by Jan 1993 – Apr 2015 |
| Arco-Beathard O-3-24253 | Davis Bros. Oil Producers, Inc. only | Bob Burr (Wilcox a-2 Sand) | Tyler | 1 | 47K | 394K | Jun 2002 – May 2005 |
| Wilcox a Unit G-13-274330 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Cooke | 1 | 45.5K | 1.38M | Jul 2012 – Aug 2026 |
| BP Mercy Seat O-3-25972 | Neches Transport Inc. only | Mercy Seat (Wilcox a-2 SD) | Tyler | 1 | 41.9K | 282K | Aug 2011 – Aug 2026 |
| Wilcox a Unit G-13-274331 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Cooke | 1 | 41.5K | 1.75M | Jul 2012 – Aug 2026 |
| Arco-Beathard O-3-28145 | Davis Southern Operating Co LLC only | Bob Burr (Wilcox a-2 Sand) | Tyler | 1 | 34.8K | 97.6K | Nov 2023 – Jul 2026 |
| Borchers, Vivian Unit et Al G-2-114619 | Hydrocarbon Operating, Inc. only | Benbow (Lower Wilcox A) | Lavaca | 1 | 34.4K | 1.47M | by Jan 1993 – Aug 2026 |
| Borchers, Vivian et Al G-2-128596 | Hydrocarbon Operating, Inc. only | Benbow (Lower Wilcox A) | Lavaca | 1 | 34.1K | 1.3M | by Jan 1993 – Aug 2026 |
| Martin, T. G-1-149429 | Texas Independent Explor Ltd. only | Hostetter (Wilcox A) | McMullen | 1 | 32.5K | 1.54M | May 1994 – Apr 1999 |
| Exxon Mineral Fee G-3-153360 | Danmark Energy Services, Inc. only | Jacks Creek (Wilcox A) | Tyler | 1 | 29.7K | 561K | Jun 1995 – Oct 2001 |
| Exxon Mineral Fee G-3-140243 | Rusk Energy Operating LLC only | Jacks Creek (Wilcox A) | Polk | 1 | 29.6K | 605K | by Jan 1993 – Jan 1995 |
| Borchers, Vivian et Al G-2-123397 | Hydrocarbon Operating, Inc. only | Benbow (Lower Wilcox A) | Lavaca | 1 | 29.3K | 735K | by Jan 1993 – Dec 2025 |
| Arco Fee "B" O-3-18404 | Rotation, Incorporated only | Segno, N.E. (Wilcox A) | Polk | 1 | 27.6K | 19.2K | by Jan 1993 – Mar 2001 |
| Hostetter, A. M. G-1-146657 | Varas Energy Operating Company, only | Hostetter (Wilcox A) | McMullen | 1 | 23.9K | 1.27M | Jul 1993 – Mar 2003 |
| Cox A O-11-67974 | Giebel Petroleum Ltd. only | Giebel (Cfa) | Andrews | 1 | 22.7K | 93.2K | Aug 1998 – Mar 2004 |
| Gertson Drilling Unit O-3-18338 | Jamex, Inc. only | Eagle View (9050 Wilcox A-2) | Colorado | 1 | 22.7K | 243 | by Jan 1993 – Jul 2026 |
| Borchers, Vivian G-2-133395 | Hydrocarbon Operating, Inc. only | Benbow (Lower Wilcox A) | Lavaca | 1 | 22.4K | 605K | by Jan 1993 – Feb 2022 |
| Eagle Lake Gas Unit #2 G-3-283201 | Mag Exploration LLC only | Eagle Lake (Wilcox A-3) | Colorado | 1 | 21.1K | 994K | May 2017 – Nov 2019 |
| Kathryn O-2-8484 | Dewbre Petroleum Corporation only | Hilly Desire (Wilcox A) | De Witt | 2 | 19.3K | 87.8K | Oct 1999 – May 2015 |
| Arco Fee "C" O-3-18778 | Rotation, Incorporated only | Segno, N.E. (Wilcox A) | Polk | 1 | 19.2K | 21.9K | by Jan 1993 – Jun 2002 |
| Arco-Beathard O-3-24341 | Davis Southern Operating Co LLC only | Bob Burr (Wilcox A-1) | Tyler | 2 | 15.1K | 25.4K | Nov 2002 – Jan 2004 |
| Exxon/ Saunders O-3-23015 | Sonoble Operating, Inc. only | Highbaugh (Wilcox a-2 Sand) | Tyler | 1 | 14.1K | 16.9K | Dec 1995 – Oct 1999 |
| Cochran, Joe O-3-11196 | Verus Energy, Inc only | Garwood, NW. (Wilcox A-3) | Colorado | 1 | 14K | 7.72K | by Jan 1993 – Jun 1998 |
| Cox A G-9-200368 | Red Stag Operating, LLC only | Ozona (Canyon Sand) | Crockett | 1 | 12.4K | 441K | Nov 2003 – Aug 2026 |
| Quinn, B.E. Estate O-3-17459 | North Central Oil Corp. only | Blue Marsh (Wilcox A-4) | Newton | 1 | 10.6K | 8.85K | by Jan 1993 – May 1995 |
| Borchers G-2-255734 | Union Gas Operating Company only | Benbow (Lower Wilcox A) | Lavaca | 1 | 9.6K | 793K | Nov 2009 – Feb 2013 |
| Daniel G-2-269204 | Dewbre Petroleum Corporation only | Benbow (Lower Wilcox A) | Lavaca | 1 | 8.25K | 238K | Aug 2013 – Aug 2015 |
| Borchers, Vivian G-2-118196 | Hydrocarbon Operating, Inc. only | Benbow (Lower Wilcox A) | Lavaca | 1 | 7.3K | 155K | by Jan 1993 – Jul 2020 |
| Jacobs, Charles G-2-58702 | Lodestone Operating, Inc. only | Helen Gohlke, E. (Wilcox A-1) | Victoria | 1 | 7.27K | 894K | by Jan 1993 – Aug 2010 |
| BP 16 Tons O-3-25758 | Davis Southern Operating Co LLC only | Sixteen Tons (Wilcox A-3) | Tyler | 1 | 6.15K | 22.3K | May 2011 – Nov 2014 |
| Frank GU G-2-281354 | Merit Energy Company only | Garrett (Wilcox A-1) | Lavaca | 1 | 5.59K | 581K | Jun 2016 – Aug 2026 |
| Vivian Borchers Unit 2 G-2-245250 | Hydrocarbon Operating, Inc. only | Benbow (Lower Wilcox A) | Lavaca | 1 | 5.54K | 732K | Nov 2007 – Jul 2024 |
| Carter, W. T. A O-3-18431 | Jacobi-Johnson Energy, Inc. only | Segno, N.E. (Wilcox A) | Polk | 2 | 5.15K | 3.19K | Feb 1993 – Jul 1997 |
| Kuester, Chas. G-2-2028 | Remora Management, LLC only | Helen Gohlke ( Wilcox A-1) | Victoria | 1 | 4.91K | 470K | by Jan 1993 – Jun 2005 |