| Robert and the Crusaders 23-24 A O-10-59036 | Birch Operations, Inc. only | Spraberry (Trend Area) | Howard | 2 | 399K | 2M | Nov 2022 – Aug 2026 |
| Robin 8 G-10-289579 | Apache Corporation only | Phantom (Wolfcamp) | Reeves | 1 | 399K | 1.48M | Mar 2014 – Aug 2026 |
| Robb-Stone W34B O-10-59312 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 398K | 264K | May 2023 – Jul 2026 |
| Henry O-11-68283 | Seaboard Operating Co. only | Robertson, N. (San Andres) | Gaines | 18 | 398K | 44.6K | Feb 2001 – Feb 2020 |
| Sanders, June T. O-10-40807 | Apache Corporation only | Dora Roberts (Consolidated) | Midland | 9 | 388K | 1.12M | Aug 2011 – Sep 2024 |
| Robertson, A. L. "D" O-11-62793 | Surge Operating, LLC only | Hoople (Clear Fork) | Crosby | 16 | 383K | 10.3K | by Jan 1993 – Aug 2026 |
| Roberts/Duke O-3-24753 | IV Standard, LLC only | Six Lakes (Cockfield) | Liberty | 4 | 382K | 35.5K | Aug 2005 – Aug 2026 |
| Roberts, Dora O-10-19039 | Apache Corporation only | Howard-Glasscock (Glorieta) | Howard | 11 | 379K | 15.3K | by Jan 1993 – Nov 2011 |
| Robinson 7-6 1WA O-10-55537 | Surge Operating, LLC only | Spraberry (Trend Area) | Howard | 1 | 379K | 544K | Jan 2020 – Aug 2026 |
| Robert and the Crusaders 23-24 C O-10-59037 | Birch Operations, Inc. only | Spraberry (Trend Area) | Howard | 2 | 371K | 2.46M | Nov 2022 – Aug 2026 |
| Robbie 17A-8-F O-9-20172 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Upton | 3 | 370K | 1.07M | Nov 2018 – Aug 2026 |
| Queen Robyn E2W2 T O-10-61272 | Civitas Permian Operating, LLC only | Sandbar (Bone Spring) | Loving | 1 | 369K | 1.11M | Mar 2024 – Aug 2026 |
| Stone-Robb W45B O-10-56601 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Glasscock | 1 | 365K | 259K | Nov 2021 – Aug 2026 |
| Gross-Robert Psa O-2-11840 | Marathon Oil EF LLC only | Eagleville (Eagle Ford-2) | Karnes | 1 | 362K | 1.86M | Nov 2019 – Aug 2026 |
| Dora Roberts Ranch Unit O-10-38180 | OXY USA WTP LP only | Sallie Ann (Spraberry-Wolfcamp) | Ector | 2 | 361K | 516K | Apr 2007 – Aug 2011 |
| Stone-Robb W45C O-10-56638 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Glasscock | 1 | 358K | 277K | Nov 2021 – Aug 2026 |
| Roberts, T. W. O-11-3569 | Aviator Energy, LLC only | Levelland | Hockley | 9 | 356K | 149K | by Jan 1993 – Aug 2026 |
| Robbie '17-8' O-9-19152 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Upton | 1 | 355K | 1.28M | Nov 2015 – Aug 2026 |
| Robinson 5 G-10-286304 | WPX Energy Permian, LLC only | Phantom (Wolfcamp) | Loving | 1 | 353K | 1.69M | Mar 2016 – Aug 2026 |
| 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 |
| Roberts Unit O-2-10826 | EOG Resources, Inc. only | Eagleville (Eagle Ford-2) | Karnes | 1 | 350K | 326K | Apr 2014 – Aug 2026 |
| Robin 8 G-10-289251 | Apache Corporation only | Phantom (Wolfcamp) | Reeves | 1 | 350K | 1.22M | Aug 2015 – Aug 2026 |
| Stone-Robb E45E O-10-58147 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Glasscock | 1 | 348K | 292K | Sep 2022 – Aug 2026 |
| Williams, Robert & James O-6-11843 | Rose City Resources, LLC only | Navarro Crossing (Woodbine) | Leon | 3 | 347K | 5.94K | by Jan 1993 – Apr 2026 |
| Queen Robyn W2W2 A O-10-60041 | Civitas Permian Operating, LLC only | Phantom (Wolfcamp) | Loving | 1 | 341K | 644K | Aug 2023 – Aug 2026 |
| Shotwell-Robinson O-8-27318 | Sojourner Drilling Corporation only | Cholla (Flippen Sd.) | Taylor | 7 | 338K | 0 | Oct 1994 – Jul 2025 |
| Robert J.S. Smith O-1-19281 | Rosewood Resources, Inc. only | Eagleville (Eagle Ford-1) | Frio | 2 | 335K | 151K | Jan 2018 – Aug 2026 |
| Queen Robyn E2E2 Z O-10-61290 | Civitas Permian Operating, LLC only | Sandbar (Bone Spring) | Loving | 1 | 335K | 587K | Mar 2024 – Aug 2026 |
| Queen Robyn E2W2 F O-10-60047 | Civitas Permian Operating, LLC only | Phantom (Wolfcamp) | Loving | 1 | 332K | 733K | Sep 2023 – Aug 2026 |
| Rudd 'A' O-11-68968 | Bce-Mach III LLC only | Robertson, N. (Clear Fork 7100) | Gaines | 10 | 331K | 238K | Jul 2006 – Aug 2026 |
| Reynolds, Clyde O-10-20846 | Leonard Brothers Operating Co. only | Roberta (Queen) | Glasscock | 8 | 325K | 22 | by Jan 1993 – Jul 2026 |
| Riley, James B. O-11-67378 | Seaboard Operating Co. only | Robertson, N. (Clear Fork 7100) | Gaines | 7 | 324K | 209K | Apr 1995 – Aug 2026 |
| Queen Robyn E2W2 B O-10-60045 | Civitas Permian Operating, LLC only | Phantom (Wolfcamp) | Loving | 1 | 322K | 584K | Sep 2023 – Aug 2026 |
| Roberta Unit 141-140E O-10-54489 | Apache Corporation only | Hoefs T-K (Wolfcamp) | Reeves | 1 | 321K | 550K | Dec 2020 – Aug 2026 |
| Stone-Robb E45B O-10-58145 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Glasscock | 1 | 320K | 229K | Sep 2022 – Aug 2026 |
| Nail Tract 3 a/C 2 O-8-6133 | Robert C. Brower, LLC only | M. P. C. (Flippen) | Shackelford | 6 | 319K | 402 | by Jan 1993 – Aug 2026 |
| Robin 8 G-10-289573 | Apache Corporation only | Phantom (Wolfcamp) | Reeves | 1 | 317K | 1.15M | Feb 2014 – Aug 2026 |
| Robeson O-3-26714 | Trailblazer Energy Resources,llc only | Halliday (Woodbine) | Leon | 1 | 309K | 761K | Oct 2013 – Aug 2026 |
| Carol-Robin (SA) Unit 1 G-2-299534 | FW Eagle Ford I, LLC only | Eagleville (Eagle Ford-2) | Lavaca | 1 | 306K | 613K | Nov 2018 – Aug 2026 |
| Roberts, Dora -A- O-10-41061 | Basa Resources, Inc. only | Howard Glasscock (Consolidated) | Howard | 27 | 300K | 6.83K | Dec 2011 – Aug 2026 |
| Queen Robyn W2E2 U O-10-61384 | Civitas Permian Operating, LLC only | Sandbar (Bone Spring) | Loving | 1 | 299K | 1.59M | Mar 2024 – Aug 2026 |
| Morton O-11-68706 | Ring Energy, Inc. only | Robertson, N. (San Andres) | Gaines | 5 | 293K | 82.5K | Jan 2005 – Feb 2020 |
| Robinson 5 G-10-286686 | WPX Energy Permian, LLC only | Phantom (Wolfcamp) | Loving | 1 | 292K | 1.31M | Jun 2016 – Aug 2026 |
| Robbins "1" O-9-17739 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Upton | 3 | 290K | 577K | Nov 2011 – Aug 2026 |
| Roberts-Mueller O-3-2099 | Magnum Producing, LP only | High Island | Chambers | 16 | 286K | 116K | by Jan 1993 – Aug 2026 |
| Queen Robyn E2W2 R O-10-61243 | Civitas Permian Operating, LLC only | Sandbar (Bone Spring) | Loving | 1 | 282K | 2.06M | Mar 2024 – Aug 2026 |
| Dora Roberts Ranch Unit O-10-15858 | Continental Resources, Inc. only | Virey (Fusselman) | Midland | 5 | 280K | 2.01M | by Jan 1993 – Aug 2026 |
| Robertson O-10-37370 | Diamondback E&P LLC only | Spraberry (Trend Area) | Midland | 3 | 273K | 639K | Jun 2004 – Aug 2026 |
| Scaling, G. W. Etal O-13-1806 | Lindemann, Robert Operating only | Lacy Armour (Strawn) | Clay | 15 | 272K | 1.39K | by Jan 1993 – Aug 2026 |
| Dora Roberts Ranch Unit O-10-34642 | OXY USA WTP LP only | War-San (Consolidated) | Midland | 14 | 271K | 5.07M | Oct 1995 – Jul 2011 |