| Bryan O-13-30258 | R2Q Operating LLC only | Big Indian (Dornick Hills) | Grayson | 2 | 366K | 2.76M | Jan 2004 – Mar 2026 |
| Sadler (Dornick Hills) Sand Unit O-13-27921 | Grayson Petroleum Company only | Andrade (Dornick Hills) | Grayson | 13 | 222K | 21 | Jan 1993 – Apr 2026 |
| McKinney O-13-30279 | R2Q Operating LLC only | Big Indian (Dornick Hills) | Grayson | 2 | 178K | 2.15M | Jan 2004 – Mar 2026 |
| Godwin, J. F. O-13-2951 | Flintlock Exploration, LLC only | Sandusky (Dornick Hills) | Grayson | 7 | 174K | 163K | Jan 1993 – Apr 2026 |
| Heckendorn G-3-185361 | Noble Energy Inc only | Sugar Valley, S. (Frio 11050) | Matagorda | 1 | 166K | 5.24M | Aug 2001 – Aug 2012 |
| McKinney-Hernstadt O-13-33271 | R2Q Operating LLC only | Big Indian (Dornick Hills) | Grayson | 1 | 157K | 604K | Sep 2015 – Mar 2026 |
| Dornburg Unit O-2-8544 | Coastline Exploration, Inc. only | Brandt (Cook Mountain) | Goliad | 2 | 147K | 121K | Mar 1999 – May 2008 |
| Caughey, Earl O-13-2768 | Jetta Operating Company, Inc. only | Hudgins (Dornick Hills 8000) | Grayson | 3 | 116K | 271K | Jan 1993 – Apr 2026 |
| GGH O-13-30434 | R2Q Operating LLC only | Big Indian (Dornick Hills) | Grayson | 1 | 96.8K | 414K | Apr 2005 – Mar 2026 |
| Cunningham, W. C. O-13-15559 | Jones, L. E. Operating, Inc. only | Dexter, NW. (Dornick Hills) | Cooke | 2 | 77.3K | 36 | Jan 1993 – Apr 2026 |
| Bryan-Bennett Unit O-13-30457 | R2Q Operating LLC only | Big Indian (Dornick Hills) | Grayson | 1 | 67K | 2.05M | May 2005 – Mar 2026 |
| Newsom O-13-30360 | R2Q Operating LLC only | Big Indian (Dornick Hills) | Grayson | 2 | 61.5K | 539K | Sep 2004 – Mar 2026 |
| Bumpass O-13-26539 | Charter Oak Production Co., LLC only | Hudgins (Dornick Hills 8000) | Grayson | 1 | 61.5K | 427K | Jan 1993 – Apr 2026 |
| Anderson, R. V. O-13-30665 | R2Q Operating LLC only | Sandusky (Dornick Hills) | Grayson | 2 | 58.1K | 89.9K | Dec 2005 – Mar 2026 |
| Dorn-Reece Unit O-1-13824 | Millennium Exploration Co. LLC only | Luling-Branyon | Caldwell | 1 | 49.6K | 10 | Nov 1993 – Dec 2025 |
| Harrison Est. O-13-14874 | Jones, L. E. Operating, Inc. only | Dexter, NW. (Dornick Hills) | Cooke | 1 | 42.4K | 36 | Jan 1993 – Apr 2026 |
| Walker, A. R. "A" O-13-22104 | Grayson Petroleum Company only | Sandusky, West (Dornick Hills) | Grayson | 1 | 41.5K | 21 | Jan 1993 – Apr 2026 |
| Hill-Anderson O-13-30409 | R2Q Operating LLC only | Big Indian (Dornick Hills) | Grayson | 1 | 35.4K | 609K | Feb 2005 – Dec 2025 |
| Bass, T.E. O-13-19648 | Felderhoff Production Company only | Dexter, NW. (Dornick Hills) | Cooke | 1 | 34.5K | 10.1K | Jan 1993 – Apr 2020 |
| Anderson, J. E. O-13-17286 | Staub, Larry, Inc. only | Sandusky, W. (Dornick Hills, N.) | Grayson | 1 | 32.7K | 189 | Jan 1993 – Feb 2026 |
| Elliott O-13-19292 | Starlight Ridge only | Hudgins (Dornick Hills 8000) | Grayson | 1 | 29.9K | 21 | Jan 1993 – Apr 2026 |
| Dornak, John L. Gas Unit G-1-109054 | Trailblazer Energy Resources,llc only | Jourdanton | Atascosa | 1 | 29.6K | 3.66M | Jan 1993 – Apr 2026 |
| Dorn O-10-36164 | Nordstrand Engineering, Inc. only | Westbrook, East (Clear Fork) | Mitchell | 2 | 29.5K | 0 | Dec 1999 – Apr 2026 |
| Snuggs O-13-15267 | Jones, L. E. Operating, Inc. only | Dexter, NW. (Dornick Hills) | Cooke | 2 | 29.5K | 31 | Jan 1993 – Nov 2020 |
| Heckendorn-Brice O-2-6358 | Sure Flow Oil & Gas, Inc. only | Victoria | Victoria | 1 | 25.1K | 20 | Jan 1993 – Jun 2009 |
| Bennett, D. W. O-13-2762 | Indian Oil Company, Inc. only | Hudgins (Dornick Hills 7600) | Grayson | 1 | 24.3K | 209 | Jan 1993 – Apr 2026 |
| Harper, Lucille O-13-15038 | Jones, L. E. Operating, Inc. only | Dexter, NW. (Dornick Hills) | Cooke | 1 | 20.5K | 36 | Jan 1993 – May 2021 |
| Dorn Unit O-1-8003 | BBC Production Company Inc. only | Dunlap | Caldwell | 2 | 20.4K | 9.97K | Jan 1993 – Apr 2026 |
| Dornak, John L. Gas Unit G-1-165776 | Trailblazer Energy Resources,llc only | Jourdanton | Atascosa | 1 | 19.1K | 2.94M | Dec 1997 – Apr 2026 |
| Marshall "B" O-13-22539 | Aeternum Energy, LLC only | Hudgins (Dornick Hills 8000) | Grayson | 1 | 18.1K | 57.7K | Jan 1993 – Oct 2022 |
| Dornak, John L. Gas Unit G-1-113306 | Trailblazer Energy Resources,llc only | Jourdanton | Atascosa | 1 | 17.4K | 2.37M | Jan 1993 – Nov 2018 |
| Cosey-Dorn -A- O-1-7057 | Millennium Exploration Co. LLC only | Luling-Branyon | Caldwell | 21 | 15K | 20 | Jan 1993 – Jan 2026 |
| Dornak O-1-10107 | Wen-BE only | Pearsall (Austin Chalk) | Atascosa | 1 | 13.7K | 0 | Sep 2009 – Jun 2013 |
| Hazelwood O-13-21795 | Charter Oak Production Co., LLC only | Hudgins (Dornick Hills 8000) | Grayson | 1 | 12.8K | 86.5K | Jan 1993 – Apr 2017 |
| Godwin, W. J. Unit #1 O-13-2970 | Felderhoff Production Company only | Sandusky, West (Dornick Hills) | Grayson | 1 | 11.6K | 132 | Jan 1993 – Nov 2005 |
| East Ham Gas Unit G-13-106860 | Brammer Petroleum, Inc. only | Paradise Cove (LO Dornick Hills) | Grayson | 1 | 7.72K | 30.2K | Jan 1993 – Apr 2025 |
| Bass, T. E. O-13-13973 | H.L. Clark Oil Company LLC only | Walnut Bend (Dornick Hills) | Cooke | 1 | 7.65K | 150 | Jan 1993 – Apr 2026 |
| Putman O-13-15059 | Jones, L. E. Operating, Inc. only | Dexter, NW. (Dornick Hills) | Cooke | 1 | 7.45K | 36 | Jan 1993 – Dec 2014 |
| Dornak O-3-3917 | Radco Operations, L.P. only | Sour Lake | Hardin | 1 | 5.63K | 21 | Jan 1993 – Feb 2024 |
| Dorn, Leroy J. O-1-6757 | Kidd Production Co. only | Dunlap | Caldwell | 1 | 5.25K | 380 | Jan 1993 – Mar 2007 |
| Dornak O-3-11374 | Radco Operations, L.P. only | Sour Lake | Hardin | 1 | 5.06K | 10 | Mar 1993 – Jan 2017 |
| Strickland West Gas Unit G-13-98576 | BKM Production only | Paradise Cove (LO Dornick Hills) | Grayson | 1 | 4.57K | 1.11M | Jan 1993 – Apr 2026 |
| Griffin, Margaret O-13-31826 | BMR Operating LLC only | Sandusky (Dornick Hills) | Grayson | 1 | 4.56K | 0 | Dec 2010 – Mar 2025 |
| Dornak, John L. Gas Unit G-1-220230 | Trailblazer Energy Resources,llc only | Jourdanton | Atascosa | 1 | 4.26K | 593K | Apr 2006 – Jul 2024 |
| Dornak, Mike E. G-2-145894 | Mobil Producing TX. & N.M. Inc. only | Word, N. (8100) | Lavaca | 1 | 4.13K | 118K | May 1993 – Feb 1994 |
| Dornak, John L. Gas Unit G-1-219882 | Trailblazer Energy Resources,llc only | Jourdanton | Atascosa | 1 | 3.8K | 566K | May 2006 – Apr 2026 |
| Dorn O-10-35787 | Partee Drilling Inc. only | Westbrook | Mitchell | 2 | 2.69K | 0 | Jan 1999 – Dec 2008 |
| Dornburg G-2-238754 | Flint Interests, LLC only | Emma Haynes (11,400 Wilcox) | Goliad | 1 | 2.63K | 513K | Apr 2008 – Mar 2017 |
| Dornburg et al Unit G-2-166247 | Coastline Exploration, Inc. only | Brandt (Yegua 4600) | Goliad | 1 | 2.29K | 205K | Nov 1997 – Sep 2003 |
| Westphal G-2-104740 | Riddle Engineering Corp. only | Dornburg (Reklaw 1E) | Goliad | 1 | 2.21K | 338K | Jan 1993 – Feb 2001 |