| Robbins '19' O-9-18297 | GHS Energy Operating, LLC only | Spraberry (Trend Area) | Upton | 1 | 13.1K | 81.4K | Jul 2013 – Aug 2026 |
| S.T. 218-L S/2 SE/4 G-3-229316 | Apex Oil & Gas, Inc. only | Galveston Block 218-L (Rob M-1) | Galveston-LB | 1 | 13.1K | 2.29M | Jun 2006 – Nov 2008 |
| Robuck -A- O-1-12018 | Hidden Oaks Oil Company, LLC only | Buchanan | Caldwell | 2 | 13.1K | 17.1K | by Jan 1993 – Jul 2026 |
| Roberts Unit G-6-174600 | Diversified Production LLC only | Carthage (Cotton Valley) | Panola | 1 | 13.1K | 1.21M | Sep 1999 – Aug 2026 |
| Farmer, R. H. O-13-16902 | Craig, Robert A. only | Archer County Regular | Archer | 3 | 13.1K | 21 | by Jan 1993 – Jun 2026 |
| Robertson, W.T. O-3-10526 | Houston Hydrocarbons, Inc. (A) only | Sugar Valley (Grant) | Matagorda | 1 | 13K | 27.5K | by Jan 1993 – Feb 1995 |
| Taylor Est. O-13-1563 | Goodner, Rob Oil Interest only | Clay County Regular | Clay | 8 | 13K | 21 | by Jan 1993 – May 2013 |
| Cities Service et Al G-10-124211 | Robertson Resources, Inc. only | Putnam (Wichita-Albany) | Pecos | 1 | 13K | 2.88M | by Jan 1993 – Jun 2026 |
| Nystel, J. P. "A" O-11-65662 | Landreth, Robert E. only | Welch | Terry | 1 | 12.9K | 2.36K | by Jan 1993 – Jan 1997 |
| Williams, Robert G-6-222365 | Harleton Oil & Gas Inc. only | Carthage (L. Pettit 6100) | Panola | 1 | 12.8K | 1.4M | Aug 2006 – Aug 2026 |
| Roberta O-10-29100 | Burleson, Lewis B. Inc. only | Belding (Yates) | Pecos | 5 | 12.5K | 26.2K | by Jan 1993 – Jul 1994 |
| Robinson O-11-5799 | Schlachter Operating Corporation only | Sharon Ridge (1700) | Scurry | 2 | 12.5K | 19 | Feb 1993 – Aug 2026 |
| Rudloff Unit O-5-3441 | Greeves, Robert only | Lott | Falls | 4 | 12.4K | 20 | Feb 1993 – May 2016 |
| Brown, Jack "C" O-13-24716 | Lindemann, Robert Operating only | Deer Creek (Israel 5000) | Clay | 1 | 12.3K | 3.11K | by Jan 1993 – Aug 2026 |
| Hughes, Vester Estate A O-9-14379 | Robby Kohutek, Inc. only | Spraberry (Trend Area) | Reagan | 1 | 12.3K | 37.8K | May 1996 – Aug 2026 |
| Nystel, J.P. "A" O-11-67708 | Landreth, Robert E. only | Corrigan (Strawn) | Terry | 1 | 12.2K | 1.98K | Mar 1997 – Oct 2000 |
| Machan, Robert and Machan, O-3-21052 | Kouatli, Aiman M. only | Giddings (Austin Chalk-3) | Burleson | 1 | 12.2K | 196 | by Jan 1993 – Jul 2026 |
| Graham (Woodbine) Gas Unit G-5-231558 | Roberts & Hammack Inc. only | Red Oak (Dexter) | Leon | 1 | 12.1K | 1.02M | Aug 2007 – May 2014 |
| Morgan, C. C. O-11-16596 | Landreth, Robert E. only | Anton (Clear Fork, Lower) | Hockley | 1 | 12.1K | 17 | by Jan 1993 – Aug 1994 |
| Landreth O-11-8369 | Etl Hydrocarbons, Inc. only | Robertson (San Andres) | Gaines | 1 | 12K | 11 | by Jan 1993 – Oct 2004 |
| Youngblood, Robert G-6-234435 | Eqv Operating LLC only | Henderson, E. (Cotton Valley) | Rusk | 1 | 12K | 269K | Mar 2009 – Apr 2024 |
| Daws O-8-30055 | Robuck Petroleum, LLC only | McKeichan, E. (Miss.) | Throckmorton | 1 | 12K | 1.65K | Jan 2008 – Aug 2026 |
| Doyle, Robert 'B' G-14-279693 | Highmark Energy Operating, LLC only | Lipscomb (Cleveland) | Lipscomb | 1 | 11.9K | 538K | Feb 2015 – Aug 2026 |
| Campbell D O-13-25509 | Craig, Robert A. only | Young County Regular | Young | 7 | 11.8K | 21 | by Jan 1993 – Apr 2026 |
| Youngblood, Robert G-6-235051 | Eqv Operating LLC only | Minden (Travis Peak Cons.) | Rusk | 1 | 11.8K | 520K | Jan 2008 – Feb 2009 |
| Robertson, J. H. -C- O-13-7340 | Perry Operating Inc. only | Young County Regular | Young | 1 | 11.8K | 21 | by Jan 1993 – Aug 2026 |
| Hill, Robert K. O-10-27598 | Finley Resources, Inc. only | Collie (Delaware) | Reeves | 1 | 11.7K | 39.7K | by Jan 1993 – Oct 2012 |
| Roberson Unit G-6-198115 | Burk Royalty Co., Ltd. only | Bethany, East (Cotton Valley) | Panola | 1 | 11.7K | 710K | Sep 2003 – Aug 2026 |
| Heiner, Robert G., -D- O-10-15691 | Eagle Rock Operating Company,llc only | Heiner (Montoya) | Pecos | 1 | 11.7K | 89.6K | by Jan 1993 – Apr 2005 |
| Robb "A" O-10-41795 | SM Energy Company only | Spraberry (Trend Area) | Howard | 1 | 11.7K | 40K | Oct 2010 – Jul 2017 |
| Robinson "292" O-8-30445 | Halliburton Operating Company only | Rough Draw (Noodle Creek) | Fisher | 1 | 11.7K | 0 | Sep 2009 – Jul 2020 |
| Robbins -27- O-10-23302 | Olsen Energy Inc. only | Roberdeau (Clear Fork, Upper) | Crane | 4 | 11.6K | 34.8K | by Jan 1993 – Jun 2017 |
| Douthit, E. W., Etux O-10-48146 | Wash, Robert C. Inc. only | Howard Glasscock (Consolidated) | Howard | 10 | 11.5K | 121 | Dec 2011 – Jul 2026 |
| Douthit -A- O-10-32744 | Wash, Robert C. Inc. only | Howard Glasscock | Howard | 2 | 11.5K | 200 | by Jan 1993 – Mar 2013 |
| Nystel "A" O-11-68538 | Landreth, Robert E. only | Corrigan, N. (Pennsylvanian) | Terry | 1 | 11.4K | 0 | Feb 2003 – Aug 2008 |
| Roberts Unit #1 G-6-30271 | Diversified Production LLC only | Carthage (Pettit, Lower Gas) | Panola | 1 | 11.4K | 3.2M | Jun 1993 – Aug 2026 |
| Roberts, Dora -C- O-10-20259 | Golden Specialties Oil & Gas only | Howard Glasscock | Glasscock | 3 | 11.4K | 125 | by Jan 1993 – Nov 2011 |
| Roberson Unit G-6-192006 | Burk Royalty Co., Ltd. only | Bethany, East (Cotton Valley) | Panola | 1 | 11.4K | 356K | Nov 2002 – Nov 2009 |
| Robertson, Jno. D. -C- O-9-1968 | Compass Operating, L.L.C. only | Susan Peak | Tom Green | 5 | 11.3K | 33.4K | Jun 1996 – Dec 1997 |
| Urban, Robert H. et al -A- O-14-3887 | Apache Corporation only | Pan Petro (Cleveland) | Ochiltree | 1 | 11.3K | 65.2K | by Jan 1993 – Jun 2003 |
| Roberson Unit G-6-60700 | Burk Royalty Co., Ltd. only | Bethany, East (Cotton Valley) | Panola | 1 | 11.3K | 411K | by Jan 1993 – Aug 2026 |
| Robertson O-8-26403 | Southern Alliance Oil Corp. only | Crystal Falls (Congl. 4100) | Stephens | 3 | 11.2K | 645K | by Jan 1993 – Aug 2026 |
| Paine, Robert G O-3-27229 | Enhanced Energy Partners Corp only | Raccoon Bend (Grawunder) | Austin | 2 | 11.2K | 0 | Apr 2017 – Aug 2026 |
| Dozier-Brockman O-13-23105 | Robuck Petroleum, LLC only | Murray, NW. (Congl) | Young | 3 | 11.2K | 14.6K | by Jan 1993 – Dec 2022 |
| Robert R Jackson O-3-26525 | Bear Creek Energy, LLC only | Raccoon Bend (Gutowsky) | Austin | 2 | 11.2K | 0 | Mar 2013 – Aug 2026 |
| Maxwell, Robert D. O-3-27577 | S & S Operating Company, Inc. only | Kirbyville (6600) | Jasper | 1 | 11.1K | 0 | Dec 2017 – Aug 2026 |
| Robertson, A. L. Tr. "A" O-11-9943 | Anadarko Petroleum Corporation only | Forbes (Glorieta) | Garza | 2 | 11.1K | 11.8K | by Jan 1993 – Feb 1996 |
| Hartman, Robert G-3-188956 | Faulconer, Vernon E., Inc. only | Raywood (Cook Mtn. 10,850) | Liberty | 1 | 11.1K | 2.22M | Apr 2002 – Oct 2014 |
| Mitchell O-10-33293 | Robertson Resources, Inc. only | Paladin (Clear Fork) | Winkler | 1 | 11.1K | 35.9K | by Jan 1993 – Nov 2000 |
| Palmer, Ruth G. O-10-24365 | Robertson Resources, Inc. only | Foster (San Andres) | Ector | 1 | 11.1K | 7.75K | by Jan 1993 – Oct 2003 |