| Vesper Associates Unit a Las O-1-17341 | Ineos USA Oil & Gas LLC only | Briscoe Ranch (Eagleford) | La Salle | 1 | 150K | 272K | Oct 2013 – Apr 2026 |
| Vesper Associates Dim B O-1-16073 | Ineos USA Oil & Gas LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 140K | 182K | Jun 2012 – Apr 2025 |
| McDaniel O-6-15968 | Machin & Associates, Inc. only | Old Boston (Mooringsport A) | Bowie | 3 | 107K | 0 | May 2023 – Mar 2026 |
| Guerra, J. C. et Al O-4-10792 | Wayne E. Glenn Associates, Inc. only | Val-Max | Starr | 2 | 61.9K | 6.98K | Jan 1993 – Jan 2013 |
| Ranch -E- & TS-D- O-14-2186 | Plumley, M. C. & Associates only | Panhandle Hutchinson County Fld. | Hutchinson | 22 | 58.9K | 621K | Jan 1993 – Feb 2026 |
| Timberstar Texarkana O-6-15239 | Machin & Associates, Inc. only | Iron Lake | Cass | 1 | 56.5K | 0 | Sep 2013 – Mar 2026 |
| Williamson O-6-15505 | Machin & Associates, Inc. only | Iron Lake | Cass | 3 | 47.3K | 0 | Aug 2016 – Mar 2026 |
| Walker, R. H. O-4-8575 | Lindenmuth & Associates, Inc. only | Richard King (5500) | Nueces | 1 | 42.5K | 8.61K | Jan 1993 – Oct 1997 |
| Foster O-6-15342 | Machin & Associates, Inc. only | Iron Lake | Cass | 1 | 40.4K | 0 | Oct 2014 – Mar 2026 |
| Wolf Unit #1 G-3-180662 | Lindenmuth & Associates, Inc. only | Lucky, West (Gola) | Matagorda | 1 | 37.8K | 2.47M | Dec 2000 – Nov 2001 |
| Wolf O-3-24293 | Lindenmuth & Associates, Inc. only | Lucky, West ( F- 9) | Matagorda | 1 | 37.4K | 64K | Dec 2002 – Jul 2009 |
| Bivins O-14-3597 | Plumley, M. C. & Associates only | Panhandle Potter County Field | Carson | 9 | 35.7K | 1.34M | Jan 1993 – Feb 2026 |
| Lennox O-6-15859 | Machin & Associates, Inc. only | Domino (Clarksville) | Red River | 1 | 29.9K | 0 | Oct 2021 – Mar 2026 |
| Wolf Unit #1 O-3-24126 | Lindenmuth & Associates, Inc. only | Lucky, W. ( No. 30 Sd.) | Matagorda | 1 | 29.8K | 151K | Dec 2001 – May 2003 |
| Mary Bradford O-6-15389 | Machin & Associates, Inc. only | Iron Lake | Cass | 1 | 29.5K | 0 | Dec 2014 – Feb 2024 |
| KCR Timberland Ltd., et Al O-6-14817 | Machin & Associates, Inc. only | Pleasant Grove | Rusk | 1 | 28.4K | 0 | Sep 2008 – Oct 2013 |
| Wolf O-3-24066 | Lindenmuth & Associates, Inc. only | Lucky, W. ( No. 30 Sd.) | Matagorda | 1 | 27.8K | 32.3K | May 2001 – Aug 2001 |
| Migura O-2-7712 | Lindenmuth & Associates, Etex only | Cuthbertson (Mackhank) | De Witt | 1 | 24.8K | 197K | Jan 1993 – May 1999 |
| Snider Industries O-6-14974 | Machin & Associates, Inc. only | Kellyville (Hill Lime) | Marion | 1 | 24.7K | 0 | Jun 2010 – Jan 2024 |
| James O-14-4690 | Plumley, M. C. & Associates only | Panhandle Hutchinson County Fld. | Hutchinson | 5 | 24.6K | 119K | Jan 1993 – Aug 2020 |
| Ranch -C- O-14-1065 | Plumley, M. C. & Associates only | Panhandle Hutchinson County Fld. | Hutchinson | 10 | 23.9K | 302K | Jan 1993 – Apr 2025 |
| Vinyard O-6-15157 | Machin & Associates, Inc. only | Sherrill (Pettit, Upper B-Zone) | Marion | 1 | 22.7K | 0 | Sep 2012 – Mar 2026 |
| Hanks O-9-8670 | RBJ & Associates, LP only | Spraberry (Trend Area) | Upton | 3 | 22.5K | 22.3K | Jan 1993 – Apr 2001 |
| Sugg, Ela C. O-9-5692 | Lindenmuth & Associates, Inc. only | Howda (San Andres) | Irion | 3 | 20.9K | 21 | Jan 1993 – Jan 2019 |
| Armstrong O-10-33643 | Moore, David & Associates, Inc. only | Shafter Lake (San Andres) | Andrews | 1 | 18.9K | 96 | Jan 1993 – Jul 2008 |
| Konvicka O-2-8132 | Indexgeo & Associates, Inc. only | Hallettsville, S. (Yegua 3650) | Lavaca | 1 | 17K | 47.3K | Nov 1995 – Aug 1997 |
| Moore O-6-15384 | Machin & Associates, Inc. only | Iron Lake | Cass | 1 | 15.9K | 0 | Feb 2015 – Oct 2021 |
| Williams O-5-3848 | Machin & Associates, Inc. only | Upper Keechi Creek (Dexter Sd.) | Leon | 2 | 14.3K | 0 | Jun 2007 – Apr 2014 |
| University "1-6" O-10-28529 | RBJ & Associates, LLC only | Block 31, NW. (Penn Upper) | Crane | 1 | 13.5K | 127 | Jan 1993 – Feb 2007 |
| Thompson O-14-1334 | Plumley, M. C. & Associates only | Panhandle Hutchinson County Fld. | Hutchinson | 4 | 12.6K | 55.3K | Jan 1993 – Jul 2022 |
| Turner-Smith -B- O-14-2107 | Plumley, M. C. & Associates only | Panhandle Hutchinson County Fld. | Hutchinson | 8 | 12.2K | 124K | Jan 1993 – May 2024 |
| Patton-Jarvis O-6-14518 | Machin & Associates, Inc. only | Danville (Travis Peak Cons.) | Gregg | 1 | 12K | 35.5K | May 2006 – Nov 2006 |
| Bivens O-14-6507 | Plumley, M. C. & Associates only | Panhandle Potter County Field | Potter | 2 | 11.8K | 227K | Jan 1993 – Feb 2026 |
| McIlroy O-14-2409 | Plumley, M. C. & Associates only | Panhandle Hutchinson County Fld. | Hutchinson | 3 | 10.9K | 93K | Jan 1993 – Feb 2026 |
| Smith O-14-723 | Plumley, M. C. & Associates only | Panhandle Hutchinson County Fld. | Hutchinson | 4 | 10.8K | 73.1K | Jan 1993 – Apr 2023 |
| Martin Oil Unit #1 O-3-9273 | Gasper Rice & Associates, Inc. only | Franks, NW. (8900) | Galveston | 1 | 9.54K | 1.49K | Jan 1993 – Jun 1995 |
| Priddy 'A' O-5-4400 | Machin & Associates, Inc. only | Walter Fair | Kaufman | 1 | 9.44K | 0 | Jun 2019 – Mar 2024 |
| Bullwheel O-14-2146 | Plumley, M. C. & Associates only | Panhandle Hutchinson County Fld. | Hutchinson | 5 | 8.47K | 100K | Jan 1993 – Apr 2023 |
| R. Bosch O-6-15166 | Machin & Associates, Inc. only | Little Cypress Bottom (Petit) | Harrison | 1 | 7.54K | 0 | Nov 2012 – Mar 2018 |
| Williams, et Al O-5-3862 | Machin & Associates, Inc. only | Upper Keechi Creek (Dexter Sd.) | Leon | 1 | 7.44K | 0 | Feb 2008 – Apr 2014 |
| Rowell O-6-15134 | Machin & Associates, Inc. only | Nita (Neugent) | Marion | 1 | 6.62K | 0 | Feb 2012 – Mar 2020 |
| Simpson O-6-15566 | Machin & Associates, Inc. only | Iron Lake | Cass | 1 | 6.43K | 0 | Oct 2017 – Jan 2026 |
| Cartwright, L., -A- O-13-12571 | Colvin, Hayes & Associates, Inc only | Archer County Regular | Archer | 7 | 6.15K | 48 | Jan 1993 – Jan 1999 |
| Lawrence Gas Unit G-2-167301 | Indexgeo & Associates, Inc. only | Hallettsville, South (Wx. 6900) | Lavaca | 1 | 5.36K | 348K | Jan 1998 – Oct 1999 |
| Ikard, A. J. O-13-351 | Colvin, Hayes & Associates, Inc only | Archer County Regular | Archer | 15 | 4.72K | 48 | Jan 1993 – Dec 1998 |
| Turner-Smith -C- O-14-2432 | Plumley, M. C. & Associates only | Panhandle Hutchinson County Fld. | Hutchinson | 2 | 4.29K | 70.2K | Jan 1993 – Dec 2023 |
| Key O-13-17281 | Colvin, Hayes & Associates, Inc only | Archer County Regular | Archer | 15 | 3.76K | 48 | Jan 1993 – Mar 1998 |
| Twin O-14-1891 | Plumley, M. C. & Associates only | Panhandle Hutchinson County Fld. | Hutchinson | 4 | 3.27K | 27.9K | Jan 1993 – Jul 2020 |
| Cowan-McKinney O-13-22157 | Colvin, Hayes & Associates, Inc only | Archer County Regular | Archer | 36 | 3.27K | 13 | Sep 1993 – Dec 1998 |
| Burton, John F. et al Unit O-4-11589 | Wayne E. Glenn Associates, Inc. only | Val-Max | Starr | 1 | 3.24K | 21 | Jun 1993 – Aug 2007 |