| North Robertson Unit O-11-65930 | Bce-Mach III LLC only | Robertson, N. (Clear Fork 7100) | Gaines | 562 | 25.8M | 12.2M | by Jan 1993 – Aug 2026 |
| Robertson /Clearfork/ Unit O-11-60580 | Hilcorp Energy Company only | Robertson, N. (Clear Fork 7100) | Gaines | 486 | 21.7M | 11.6M | by Jan 1993 – Aug 2026 |
| South Central Robertson Unit O-11-62596 | Crescent Energy Operating, LLC only | Robertson, N. (Clear Fork 7100) | Gaines | 145 | 20.5M | 10M | by Jan 1993 – Aug 2026 |
| Central Robertson Clearfork Unit O-11-65590 | Hilcorp Energy Company only | Robertson, N. (Clear Fork 7100) | Gaines | 154 | 19.7M | 7.84M | by Jan 1993 – Aug 2026 |
| Syco Unit O-11-66735 | Bce-Mach III LLC only | Robertson, N. (Clear Fork 7100) | Gaines | 50 | 7.5M | 3.41M | by Jan 1993 – Aug 2026 |
| Robertson Unit O-11-62665 | Bce-Mach III LLC only | Robertson, N. (Clear Fork 7100) | Gaines | 109 | 7.31M | 2.93M | by Jan 1993 – Aug 2026 |
| Robertson (San Andres) Unit O-11-66037 | Hilcorp Energy Company only | Robertson, N. (San Andres) | Gaines | 73 | 4.7M | 1.66M | by Jan 1993 – Aug 2026 |
| South Robertson (San Andres) U. O-11-67419 | Contango Resources, Inc. only | Robertson, N. (San Andres) | Gaines | 60 | 3.31M | 722K | Aug 1995 – Feb 2020 |
| Robertson N. Clearfork Lo. Unit O-11-62414 | Seaboard Operating Co. only | Robertson, N. (Clear Fork 7100) | Gaines | 48 | 2.84M | 1.55M | by Jan 1993 – Aug 2026 |
| Eubanks (Clearfork) Unit O-11-62780 | Citation Oil & Gas Corp. only | Robertson, N. (Clear Fork 7100) | Gaines | 40 | 1.4M | 707K | by Jan 1993 – Aug 2026 |
| North Robertson San Andres Unit O-11-70072 | Citation Oil & Gas Corp. only | Robertson, N. (San Andres) | Gaines | 73 | 1.3M | 744K | Dec 2013 – Feb 2020 |
| Rudd O-11-68320 | Bce-Mach III LLC only | Robertson, N. (Clear Fork 7100) | Gaines | 23 | 1.17M | 926K | Jun 2001 – Aug 2026 |
| Exxon Fee Eubanks "D" O-11-62478 | Citation Oil & Gas Corp. only | Robertson, N. (Clear Fork 7100) | Gaines | 22 | 1.15M | 549K | by Jan 1993 – Aug 2026 |
| Exxon Fee Eubanks "C" O-11-62540 | Citation Oil & Gas Corp. only | Robertson, N. (Clear Fork 7100) | Gaines | 22 | 1.05M | 520K | by Jan 1993 – Aug 2026 |
| North Robertson San Andres Unit O-11-71163 | Citation Oil & Gas Corp. only | Harris (San Andres) | Gaines | 78 | 824K | 538K | Mar 2020 – Aug 2026 |
| Jenkins, Sam C. O-11-67380 | Seaboard Operating Co. only | Robertson, N. (Clear Fork 7100) | Gaines | 14 | 623K | 326K | Apr 1995 – Aug 2026 |
| Henry O-11-68283 | Seaboard Operating Co. only | Robertson, N. (San Andres) | Gaines | 18 | 398K | 44.6K | Feb 2001 – Feb 2020 |
| Wharton, A. B. Jr. "E" Joa O-11-68760 | Sabinal Energy Operating, LLC only | Robertson, N. (San Andres) | Gaines | 6 | 351K | 81.6K | Mar 2005 – Feb 2020 |
| Rudd 'A' O-11-68968 | Bce-Mach III LLC only | Robertson, N. (Clear Fork 7100) | Gaines | 10 | 331K | 238K | Jul 2006 – Aug 2026 |
| Riley, James B. O-11-67378 | Seaboard Operating Co. only | Robertson, N. (Clear Fork 7100) | Gaines | 7 | 324K | 209K | Apr 1995 – Aug 2026 |
| Morton O-11-68706 | Ring Energy, Inc. only | Robertson, N. (San Andres) | Gaines | 5 | 293K | 82.5K | Jan 2005 – Feb 2020 |
| Wharton, A. B. Jr. "a" Joa O-11-68699 | Sabinal Energy Operating, LLC only | Robertson, N. (San Andres) | Gaines | 11 | 268K | 20.9K | Aug 2004 – Feb 2020 |
| Elam O-11-68669 | Sabinal Energy Operating, LLC only | Robertson, N. (San Andres) | Gaines | 4 | 232K | 54.4K | Dec 2003 – Feb 2020 |
| Exxon Fee "B" O-11-65277 | Citation Oil & Gas Corp. only | Robertson, N. (Devonian) | Gaines | 4 | 213K | 54.6K | by Jan 1993 – Aug 2026 |
| Stark, Mattye E. O-11-67735 | Q Natural Resources, LLC only | Robertson | Gaines | 2 | 210K | 85.4K | May 1997 – Apr 2026 |
| Robertson, J. B. '16' O-11-68408 | Bce-Mach III LLC only | Harris | Gaines | 3 | 197K | 37.6K | May 2001 – Aug 2026 |
| Exxon Fee "B" O-11-69601 | Citation Oil & Gas Corp. only | Robertson, N. (San Andres) | Gaines | 12 | 193K | 87K | Aug 2010 – Nov 2013 |
| Exxon-Shell Fee O-11-62113 | Citation Oil & Gas Corp. only | Robertson, N. (San Andres) | Gaines | 13 | 190K | 257K | by Jan 1993 – Nov 2013 |
| Kendrick, Harold H. O-11-65781 | Citation Oil & Gas Corp. only | Robertson (Penn.) | Gaines | 1 | 168K | 63.9K | by Jan 1993 – Apr 2026 |
| Robertson, J. B. O-11-63764 | Texaco E & P Inc. only | Robertson, N. (Clear Fork 7100) | Gaines | 14 | 154K | 40.7K | by Jan 1993 – Mar 1995 |
| Exxon Fee O-11-62092 | Citation Oil & Gas Corp. only | Robertson, N. (San Andres) | Gaines | 13 | 142K | 153K | Feb 1995 – Nov 2013 |
| Exxon Fee "D" O-11-64924 | Citation Oil & Gas Corp. only | Robertson, N. (San Andres) | Gaines | 11 | 141K | 122K | by Jan 1993 – Nov 2013 |
| South Robertson (San Andres) U. O-11-71167 | Crescent Energy Operating, LLC only | Harris (San Andres) | Gaines | 55 | 141K | 12.5K | Mar 2020 – Aug 2026 |
| Appleman O-11-64674 | Rock Fish Operating LLC only | Robertson, N. (Clear Fork 7100) | Gaines | 1 | 97.4K | 16.9K | by Jan 1993 – Aug 2026 |
| Stark, T. O. "B" O-11-65961 | Barnett Energy, Inc. only | Robertson, N. (Clear Fork 7100) | Gaines | 1 | 93.1K | 12.8K | by Jan 1993 – Oct 2023 |
| Exxon-Shell Fee "C" O-11-63237 | Citation Oil & Gas Corp. only | Robertson, N. (Clear Fork 7100) | Gaines | 1 | 92.8K | 37.3K | by Jan 1993 – Aug 2025 |
| Wharton, A.b.jr."b"joa O-11-68686 | Sabinal Energy Operating, LLC only | Robertson, N. (San Andres) | Gaines | 2 | 80.4K | 22.8K | May 2004 – Feb 2020 |
| Suzyq 291 O-11-69597 | Bce-Mach III LLC only | Robertson, N. (Clear Fork 7100) | Gaines | 4 | 80.4K | 35K | Jul 2010 – Aug 2026 |
| Cunningham, Helen "B" O-11-62652 | Citation Oil & Gas Corp. only | Robertson, N. (Clear Fork 7100) | Gaines | 5 | 79.1K | 41.9K | by Jan 1993 – Aug 2026 |
| Doss, M. S. O-11-69689 | Citation Oil & Gas Corp. only | Robertson, N. (San Andres) | Gaines | 3 | 76.2K | 114K | Nov 2010 – Nov 2013 |
| Wharton, A.b.jr."c"joa O-11-68687 | Sabinal Energy Operating, LLC only | Robertson, N. (San Andres) | Gaines | 4 | 75.9K | 28.3K | May 2004 – Nov 2019 |
| Robertson, J.B. O-11-67562 | Sabinal Energy Operating, LLC only | Robertson, N. (San Andres) | Gaines | 2 | 69K | 26.1K | Apr 1996 – Oct 2020 |
| Morton O-11-60035 | Chaparral Energy, L.L.C. only | Robertson (San Andres) | Gaines | 2 | 66.4K | 12.2K | by Jan 1993 – Nov 2002 |
| Concord O-11-71507 | Bce-Mach III LLC only | Robertson, N. (Clear Fork 7100) | Gaines | 1 | 65.4K | 31.3K | Jan 2026 – Aug 2026 |
| Wharton, A. B. Jr. Sec. 4 O-11-67563 | Chevron U. S. A. Inc. only | Robertson, N. (San Andres) | Gaines | 4 | 62.9K | 12.9K | Apr 1996 – Apr 2004 |
| Doss, M. S. O-11-62123 | Chesapeake Operating, Inc. only | Robertson, N. (San Andres) | Gaines | 2 | 50.7K | 71.4K | by Jan 1993 – Nov 2006 |
| Moore, M. A. O-11-61905 | Samedan Oil Corporation only | Robertson (San Andres) | Gaines | 9 | 43.2K | 8.05K | by Jan 1993 – Nov 1994 |
| Doss, M. S. a/C 2 O-11-63240 | Citation Oil & Gas Corp. only | Robertson, N. (Clear Fork 7100) | Gaines | 1 | 42.2K | 34K | by Jan 1993 – Feb 2016 |
| Cunningham, Helen & Alice O-11-62857 | Dinero Operating Company only | Robertson, N. (Clear Fork 7100) | Gaines | 1 | 41.4K | 21 | by Jan 1993 – Aug 2019 |
| Montalvo, Gabriel O-11-69511 | Crescent Energy Operating, LLC only | Robertson, N. (Clear Fork 7100) | Gaines | 2 | 41.1K | 0 | Sep 2009 – Mar 2018 |