| 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 |
| Roberts Unit O-11-19212 | Hilcorp Energy Company only | Wasson | Yoakum | 623 | 18.4M | 12.3M | by Jan 1993 – Aug 2026 |
| Dora Roberts Ranch Unit O-10-34635 | Continental Resources, Inc. only | Dora Roberts (Consolidated) | Midland | 244 | 8.29M | 39.7M | Oct 1995 – 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 |
| Roberts, Dora, B. D. & E. O-10-2827 | Sheridan Production Company, LLC only | Howard Glasscock | Howard | 194 | 5.33M | 16.9K | by Jan 1993 – Nov 2011 |
| 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 |
| Dora Roberts Ranch Unit O-10-34646 | OXY USA WTP LP only | Virey (Consolidated) | Midland | 74 | 3.3M | 8.94M | Oct 1995 – Jul 2011 |
| 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 |
| Dora Roberts Ranch Unit O-10-15862 | Continental Resources, Inc. only | Moose (Queen) | Midland | 24 | 2.6M | 76.7K | by Jan 1993 – Aug 2026 |
| Robert Michael O-10-61648 | SM Energy Company only | Spraberry (Trend Area) | Martin | 9 | 2.59M | 3.77M | Aug 2024 – Aug 2026 |
| Dora Roberts Ranch Unit O-10-31940 | Continental Resources, Inc. only | Virey (Queen) | Midland | 21 | 2.55M | 79.5K | by Jan 1993 – Feb 2025 |
| Driscoll, Robert O-4-5421 | Hilcorp Energy Company only | Conoco Driscoll | Duval | 75 | 2.21M | 1.78M | by Jan 1993 – Aug 2026 |
| Roberts, Dora O-10-2803 | Sheridan Production Company, LLC only | Howard Glasscock | Howard | 67 | 1.82M | 14.8K | by Jan 1993 – Nov 2011 |
| Dora Roberts Ranch Unit O-10-15857 | Continental Resources, Inc. only | Virey (Ellenburger) | Midland | 35 | 1.78M | 11.1M | 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 |
| Robison, J. H. "A" O-11-12365 | JO Mill Oil Company LLC only | Spraberry, Deep (Spraberry, Lo.) | Dawson | 9 | 1.37M | 380K | by Jan 1993 – Aug 2026 |
| Roberts, Dora -Bde- O-10-41064 | Basa Resources, Inc. only | Howard Glasscock (Consolidated) | Howard | 146 | 1.36M | 33.8K | Dec 2011 – Aug 2026 |
| Robbie O-10-40191 | XTO Energy Inc. only | Spraberry (Trend Area) | Midland | 23 | 1.35M | 2.69M | Apr 2010 – Aug 2026 |
| S. T. 186-L S/2 SE/4 O-3-25894 | Emerald Gather and Trans, LLC only | St 186L S\2 SE\4 (Rob-L) | Galveston-LB | 1 | 1.35M | 1.29M | Jan 2012 – Aug 2026 |
| Roberts, Dora O-10-41282 | Basa Resources, Inc. only | Howard Glasscock (Consolidated) | Howard | 53 | 1.33M | 19.8K | Dec 2011 – 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 |
| Robbie 17A-8 O-9-20044 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Upton | 4 | 1.24M | 6.46M | Jun 2018 – Aug 2026 |
| Queen Robyn E2E2 N O-10-60030 | Civitas Permian Operating, LLC only | Phantom (Wolfcamp) | Loving | 2 | 1.21M | 1.84M | Aug 2023 – Aug 2026 |
| Rudd O-11-68320 | Bce-Mach III LLC only | Robertson, N. (Clear Fork 7100) | Gaines | 23 | 1.17M | 926K | Jun 2001 – Aug 2026 |
| Queen Robyn W2E2 K O-10-60051 | Civitas Permian Operating, LLC only | Phantom (Wolfcamp) | Loving | 3 | 1.17M | 2.26M | Aug 2023 – 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 |
| Roberts, Dora O-10-41261 | Citation Oil & Gas Corp. only | Howard Glasscock (Consolidated) | Howard | 39 | 1.15M | 27.6K | Dec 2011 – 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 |
| Dora Roberts Ranch Unit O-10-15859 | Continental Resources, Inc. only | War-San (Ellenburger) | Midland | 12 | 1.03M | 3.83M | by Jan 1993 – Aug 2026 |
| Robert Walker Unit Zav B O-1-17827 | Exco Operating Company, LP only | Briscoe Ranch (Eagleford) | Zavala | 3 | 1.01M | 358K | Sep 2014 – Aug 2026 |
| Robb Walter Unit O-10-47664 | OXY USA Inc. only | Spraberry (Trend Area) | Howard | 3 | 977K | 1.18M | Feb 2016 – Aug 2026 |
| Robyn Lee D O-10-62392 | Hibernia Resources IV, LLC only | Spraberry (Trend Area) | Dawson | 1 | 963K | 590K | Oct 2024 – Aug 2026 |
| Robertson State Unit 2-5 O-10-47332 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Reeves | 1 | 940K | 2.78M | Dec 2015 – Aug 2026 |
| Robyn Lee C O-10-62322 | Hibernia Resources IV, LLC only | Spraberry (Trend Area) | Dawson | 1 | 924K | 538K | Oct 2024 – Aug 2026 |
| Robyn Lee I O-10-62279 | Hibernia Resources IV, LLC only | Spraberry (Trend Area) | Dawson | 1 | 830K | 561K | Sep 2024 – 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 |
| Paine, Robert G. O-3-10020 | Enhanced Energy Partners Corp only | Raccoon Bend (Cockfield Lower) | Austin | 27 | 821K | 178K | by Jan 1993 – Aug 2026 |
| Dora Roberts Ranch Unit O-10-15848 | Continental Resources, Inc. only | Dora Roberts (Ellenburger) | Midland | 28 | 813K | 5.29M | by Jan 1993 – Aug 2026 |
| Roberts-Coble "B" O-11-3568 | Hilcorp Energy Company only | Levelland | Hockley | 12 | 801K | 237K | by Jan 1993 – Aug 2026 |
| Robbie Jane O-9-16885 | Firebird Energy II LLC only | Spraberry (Trend Area) | Upton | 16 | 793K | 3.66M | Mar 2009 – Jun 2023 |
| Robyn Lee J O-10-62280 | Hibernia Resources IV, LLC only | Spraberry (Trend Area) | Dawson | 1 | 777K | 606K | Sep 2024 – Aug 2026 |
| Robyn Lee G O-10-63785 | Hibernia Resources IV, LLC only | Spraberry (Trend Area) | Dawson | 1 | 720K | 538K | Jun 2025 – Aug 2026 |
| Robert and the Crusaders 23-24 B O-10-59034 | Birch Operations, Inc. only | Spraberry (Trend Area) | Howard | 4 | 702K | 2.98M | Nov 2022 – Aug 2026 |
| Robyn Lee H O-10-63786 | Hibernia Resources IV, LLC only | Spraberry (Trend Area) | Dawson | 1 | 681K | 512K | Jun 2025 – Aug 2026 |
| Queen Robyn E2W2 E O-10-60042 | Civitas Permian Operating, LLC only | Phantom (Wolfcamp) | Loving | 2 | 675K | 1.36M | Aug 2023 – Aug 2026 |