| Hanks, Billie -A- O-8-2940 | Goodrock Natural Resources, LLC only | Hylton, NW. (Cambrian) | Nolan | 11 | 974K | 306K | Jan 1993 – Apr 2026 |
| Bronte Cambrian Unit O-9-2473 | R3 Operating Corporation only | Bronte (Cambrian) | Coke | 27 | 872K | 275K | Jan 1993 – Apr 2026 |
| Thunderbolt "38" O-11-68327 | Mule Kick Operating LLC only | Brianna Shea (Canyon Reef) | Dawson | 1 | 518K | 137K | May 2001 – Apr 2026 |
| Jordan, R. H. O-8-2942 | Goodrock Natural Resources, LLC only | Hylton, NW. (Cambrian) | Nolan | 8 | 483K | 129K | Jan 1993 – Apr 2026 |
| Brunson, J. L., -C- O-9-4763 | R3 Operating Corporation only | Bronte (Cambrian) | Coke | 7 | 297K | 105K | Jan 1993 – Mar 2025 |
| Petty, R. R. O-8-8723 | Goodrock Natural Resources, LLC only | E. A. (Cambrian Sand) | Nolan | 7 | 261K | 60.3K | Jun 1993 – Apr 2026 |
| TXL -K- O-8-2935 | Rigged UP, LLC only | Hylton, NW. (Cambrian) | Nolan | 3 | 189K | 68.9K | Feb 1994 – Apr 2026 |
| Jordan, R. H. "A" O-8-28912 | Goodrock Natural Resources, LLC only | Hylton, NW. (Cambrian) | Nolan | 4 | 163K | 60.3K | Jan 2001 – Jul 2024 |
| Oxo O-8-30921 | Clear Fork, Incorporated only | Look Back (Miss-Cambrian) | Nolan | 2 | 138K | 10.8K | Feb 2012 – Apr 2026 |
| Tubb -D- O-10-25121 | Cambrian Management, Ltd. only | Sand Hills (Tubb) | Crane | 3 | 124K | 964K | Jan 1993 – Apr 2026 |
| Millar, L. H.etal O-10-34866 | Olsen Energy Inc. only | Wentz (Cambrian SE) | Pecos | 2 | 110K | 249K | Feb 1996 – Apr 2026 |
| Tipton O-10-30392 | Cambrian Management, Ltd. only | Sand Springs (Fusselman) | Howard | 1 | 104K | 314K | Jan 1993 – Apr 2026 |
| TXL O-8-2880 | O'Ryan Oil and Gas only | Dora, North (Cambrian) | Nolan | 5 | 89K | 101K | Jan 1993 – May 2011 |
| Hanks, Billie "B" O-8-29055 | Goodrock Natural Resources, LLC only | Hylton, NW. (Mid-Cambrian) | Nolan | 1 | 84.9K | 24.5K | Feb 2001 – Sep 2016 |
| Boyd, C. E. O-8-2879 | O'Ryan Oil and Gas only | Dora, North (Cambrian) | Nolan | 1 | 84.9K | 75.9K | Jan 1993 – May 2011 |
| Hanks, Billie "A" O-8-29061 | Goodrock Natural Resources, LLC only | Hylton, NW. (Mid-Cambrian) | Nolan | 1 | 81.5K | 36.6K | Sep 2001 – Dec 2014 |
| Fischer, Brian O-3-22347 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Washington | 1 | 72.3K | 1.44M | Jan 1994 – Nov 2022 |
| T X L -O- O-10-20046 | Cambrian Management, Ltd. only | TXL (San Andres) | Ector | 4 | 64.3K | 158K | Jan 1993 – Mar 2018 |
| Boyd -B- O-8-2881 | O'Ryan Oil and Gas only | Dora, North (Cambrian) | Nolan | 7 | 61.5K | 72.7K | Jan 1993 – May 2011 |
| J.L. Brunson "B" O-9-17586 | R3 Operating Corporation only | Bronte (Cambrian) | Coke | 1 | 53.2K | 7.62K | Mar 2011 – Jun 2024 |
| Brianna O-10-38614 | Highpeak Energy Holdings, LLC only | Spraberry (Trend Area) | Howard | 2 | 44.4K | 170K | Dec 2007 – Apr 2026 |
| Richard O-8-30026 | Clear Fork, Incorporated only | Look Back (Miss-Cambrian) | Nolan | 1 | 41.7K | 0 | Dec 2007 – Apr 2026 |
| Othella -A- O-10-9693 | Cambrian Management, Ltd. only | Big Spring (Fusselman) | Howard | 2 | 39.4K | 26.5K | Jan 1993 – Mar 2007 |
| Petty, R. R. O-8-29329 | Pioneer Exploration, Ltd. only | E. A. (Cambrian) | Nolan | 1 | 30.8K | 8.08K | Dec 2003 – Jul 2004 |
| Billie Hanks a/B Unit O-8-29375 | Goodrock Natural Resources, LLC only | Hylton, NW. (Cambrian) | Nolan | 1 | 30.3K | 8.5K | Mar 2004 – Sep 2023 |
| Lynn O-10-29726 | Cambrian Management, Ltd. only | Sand Springs (Fusselman) | Howard | 2 | 28.3K | 49.5K | Jan 1993 – Sep 2012 |
| University 2-7 O-9-9765 | Cambrian Management, Ltd. only | Spraberry (Trend Area) | Reagan | 1 | 27.6K | 64.9K | Jan 1993 – May 2020 |
| Trammel, W. B. "A" O-8-17996 | Korman Exploration, Inc. only | Tompkins (Cambrian) | Stonewall | 1 | 27.1K | 242 | Jan 1993 – Nov 1998 |
| Gillihan O-10-11100 | Cambrian Management, Ltd. only | Big Spring (Fusselman) | Howard | 2 | 24K | 8.33K | Jan 1993 – Jan 2017 |
| University Muscadet O-9-18270 | Cambrian Management, Ltd. only | Sheep Mountain (Consolidated) | Upton | 1 | 19.4K | 49.9K | Jun 2013 – Oct 2020 |
| Hanks, Billie "B" O-8-28927 | Pioneer Exploration, Ltd. only | Hylton, NW. (Cambrian) | Nolan | 1 | 18.1K | 7.67K | Feb 2001 – Aug 2001 |
| Nolan D Fee O-8-29156 | Atlas Operating LLC only | Hylton, NW. (Cambrian) | Nolan | 1 | 17.8K | 7.28K | Apr 2002 – Feb 2012 |
| Univbrianna O-10-44890 | Owl Ops II LLC only | University 31 West (U. Devonian) | Crane | 1 | 17.6K | 23.3K | Feb 2014 – Apr 2026 |
| Kenny State 308 O-10-43626 | Cambrian Management, Ltd. only | Wolfbone (Trend Area) | Reeves | 1 | 17.3K | 226K | Jul 2012 – Dec 2021 |
| Petty, R. R. "A" O-8-28292 | Goodrock Natural Resources, LLC only | Hylton, NW. (Cambrian) | Nolan | 1 | 16.6K | 9.36K | Oct 1997 – Mar 2015 |
| Ford -C- O-10-31455 | Cambrian Management, Ltd. only | Parker (Pennsylvanian) | Andrews | 1 | 14.3K | 3.79K | Jan 1993 – Mar 2010 |
| Trammell, W.B. "A" O-8-16657 | Korman Exploration, Inc. only | Tompkins (Cambrian, LO) | Stonewall | 1 | 12.7K | 162 | Jan 1993 – Feb 1998 |
| Winkleman -27- O-10-24860 | Cambrian Management, Ltd. only | Spraberry (Trend Area) | Midland | 1 | 10.9K | 32.3K | Jan 1993 – Jan 1996 |
| L. H. Millar 39 O-10-35330 | Chevron U. S. A. Inc. only | Wentz (Cambrian SE) | Pecos | 1 | 7.35K | 11.8K | Jul 1996 – Aug 1998 |
| Barton, V. O-7-6065 | Brian Energy only | East Texas | Rusk | 1 | 4.36K | 4.33K | Jan 1993 – Jun 1998 |
| Tubb D-2 O-10-34321 | Cambrian Management Ltd only | Sand Hills (Judkins) | Crane | 1 | 3.99K | 38.7K | Nov 1994 – Jun 2003 |
| Hanks, Billie "A" O-8-29408 | Goodrock Natural Resources, LLC only | Hylton, NW. (Cambrian) | Nolan | 2 | 3.84K | 0 | Oct 2013 – Dec 2024 |
| Tubb-D O-10-33007 | Cambrian Management, Ltd. only | Sand Hills (Judkins) | Crane | 1 | 3.39K | 46.6K | Apr 1995 – Sep 2007 |
| Othella -A- O-10-39059 | Cambrian Management, Ltd. only | Spraberry (Trend Area) | Howard | 1 | 3.11K | 9.78K | Jun 2008 – Dec 2012 |
| Lamkin, C. W. O-8-2941 | Atlas Operating LLC only | Hylton, NW. (Cambrian) | Nolan | 2 | 3.09K | 185 | Apr 1993 – Jul 2005 |
| Ray, Mary O-10-34503 | Cambrian Management, Ltd. only | Azalea (Strawn) | Midland | 1 | 2.74K | 10.2K | Apr 1995 – Jan 1999 |
| Petty, R. R. "B" O-8-28394 | Goodrock Natural Resources, LLC only | Hylton, NW. (Cambrian) | Nolan | 1 | 2.1K | 0 | Oct 1997 – Mar 2015 |
| Lou Brock O-11-71133 | Cambrian Management, Ltd. only | Illusion Lake (San Andres) | Hockley | 1 | 1.69K | 0 | Jan 2021 – Jul 2021 |
| Dhi Mays 127-7 O-10-49887 | Cambrian Management, Ltd. only | Wolfbone (Trend Area) | Pecos | 1 | 1.53K | 0 | Oct 2017 – Aug 2019 |
| Cummins -N- O-10-37725 | Cambrian Management, Ltd. only | Cummins (Devonian) | Ector | 1 | 1.3K | 3.17K | Apr 2005 – Jun 2005 |