| Roberdeau, J. A., et Al O-10-17783 | Olsen Energy Inc. only | Roberdeau (Clear Fork, Upper) | Crane | 2 | 41.4K | 93.7K | by Jan 1993 – Aug 2026 |
| 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 |
| Roberts, Dora, -B- O-10-19965 | 5H Oil Co., LLC only | Howard Glasscock | Glasscock | 10 | 41.2K | 33 | by Jan 1993 – Nov 2011 |
| Montalvo, Gabriel O-11-69511 | Crescent Energy Operating, LLC only | Robertson, N. (Clear Fork 7100) | Gaines | 2 | 41.1K | 0 | Sep 2009 – Mar 2018 |
| Robinson 5 G-10-277586 | WPX Energy Permian, LLC only | Sandbar (Bone Spring) | Loving | 1 | 41K | 1.63M | May 2013 – Jan 2025 |
| Wharton, A. B. Jr. Sec. 4 O-11-61924 | Chevron U. S. A. Inc. only | Robertson (San Andres) | Gaines | 4 | 40.8K | 7.47K | by Jan 1993 – Mar 1996 |
| Orr, Robert O-1-4479 | Rusk Energy Operating LLC only | Bulloh (Navarro) | Milam | 1 | 40.7K | 60 | by Jan 1993 – Aug 2026 |
| Broyles O-11-66729 | Landreth, Robert E. only | Britt (Spraberry) | Dawson | 1 | 40.4K | 23.3K | by Jan 1993 – Sep 1995 |
| Seale O-3-26692 | Roberts & Hammack Inc. only | BSR (Sub-Clarksville) | Leon | 1 | 40.3K | 22 | May 2013 – Aug 2026 |
| Spearman, Robert "A" O-3-13787 | Chesapeake Operating, L.L.C. only | Giddings (Austin Chalk-3) | Burleson | 2 | 40.2K | 140K | by Jan 1993 – Jun 2019 |
| Roberts McMeans O-8-31091 | JTL Oil Company LLC only | Sojourner | Haskell | 2 | 40K | 0 | Oct 2012 – Aug 2026 |
| Robbie JO O-14-5492 | Large Operating LLC only | Panhandle Moore County Field | Moore | 5 | 39.9K | 926K | by Jan 1993 – Jul 2026 |
| Robertson O-1-8806 | Castillo Oil Company LLC only | Salt Flat, West | Caldwell | 5 | 39.9K | 36.2K | by Jan 1993 – Jul 2026 |
| Wells, K. W. O-11-14415 | Landreth, Robert E. only | Anton (Clear Fork, Lower) | Hockley | 1 | 39.8K | 1.62K | by Jan 1993 – Dec 2000 |
| Robert Grunder 01 G-2-267709 | Marathon Oil EF LLC only | De Witt (Eagle Ford Shale) | De Witt | 1 | 39.4K | 1.13M | Aug 2011 – Aug 2026 |
| Robertson-Metcalf, T.P. O-8-24436 | Russell Bros. Oil & Gas, Inc. only | Ann T. (Caddo) | Stephens | 3 | 39.4K | 11 | by Jan 1993 – Aug 2026 |
| Gray Line Gray Sand O-8-31381 | Quail Well Service, Inc. only | Robertson-Griffin (Gray Sand) | Taylor | 9 | 39.1K | 0 | Dec 2013 – Aug 2026 |
| Robert G-3-156791 | Waylander LLC only | Iola (Georgetown) | Grimes | 1 | 38.8K | 752K | Aug 1995 – Jan 2016 |
| Clay, H. R. -A- O-10-48144 | Wash, Robert C. Inc. only | Howard Glasscock (Consolidated) | Howard | 17 | 38.6K | 121 | Dec 2011 – Jul 2026 |
| Lavelle, Elsie C. O-8-19371 | Leclair Operating Co., Inc. only | Robertson-Griffin (Gray Sand) | Taylor | 14 | 38.4K | 39.2K | by Jan 1993 – Jan 2003 |
| Robertson O-13-24036 | Burk Royalty Co., Ltd. only | Tolbert | Wilbarger | 1 | 38.4K | 21 | by Jan 1993 – Jan 2021 |
| Jeter O-5-3877 | Roberts & Hammack Inc. only | Red Oak (Dexter) | Leon | 1 | 38.1K | 23.6K | Jun 2008 – Aug 2026 |
| Simmons, J. C. O-8-8977 | Robert C. Brower, LLC only | Bowar, E. (Miss.) | Stephens | 3 | 37.9K | 21 | by Jan 1993 – Aug 2026 |
| Robinson O-6-11213 | Jandar Exploration, L. C. only | Beckville, West (Travis Peak) | Panola | 1 | 37.8K | 187 | by Jan 1993 – Aug 2026 |
| Flowers XS G-14-276311 | BE Anadarko II, LLC only | Roberts Co. (St. Louis) | Roberts | 1 | 37.8K | 3.22M | Jun 2014 – Aug 2026 |
| Robertson, Wilmoth -B- O-13-8412 | Perry Operating Inc. only | Graham, North (Strawn 3450) | Young | 6 | 37.7K | 20K | by Jan 1993 – Aug 2026 |
| Noe, H. M. O-13-18284 | Lindemann, Robert Operating only | Clay County Regular | Clay | 1 | 37.3K | 22 | by Jan 1993 – Aug 2026 |
| Robinson-Poteet O-3-26238 | Wildfire Energy Operating LLC only | Madisonville, W. (Woodbine -A-) | Brazos | 1 | 36.7K | 18.5K | May 2013 – Jul 2026 |
| Flowers Brothers G-14-276596 | Mmgl Txph, LLC only | Roberts Co. (St. Louis) | Roberts | 1 | 36.7K | 5.47M | Nov 2014 – Aug 2026 |
| Dora Roberts Ranch Unit O-10-15860 | Continental Resources, Inc. only | War-San (Fusselman) | Midland | 7 | 36.4K | 151K | by Jan 1993 – Jun 2026 |
| Martin Trust G-14-265532 | BE Anadarko II, LLC only | Roberts Co. (St. Louis) | Roberts | 1 | 36.4K | 3.09M | Sep 2011 – Aug 2026 |
| Robinson O-13-22921 | Jones, L. E. Operating, Inc. only | Sivells Bend | Cooke | 2 | 36.4K | 1.82K | by Jan 1993 – Apr 2019 |
| Robertson-Mulholland O-9-10413 | Atlas Operating LLC only | Price (Grayburg) | Reagan | 8 | 36.2K | 30.9K | by Jan 1993 – Aug 2026 |
| Robinson O-11-64951 | BBS Oil Field Services Inc only | Post (Glorieta) | Garza | 4 | 36.1K | 333 | by Jan 1993 – Jul 2026 |
| Clark XS G-14-269131 | BE Anadarko II, LLC only | Roberts Co. (St. Louis) | Roberts | 1 | 36K | 4.5M | Mar 2012 – Aug 2026 |
| Robertson, George G-6-282410 | Valence Operating Company only | Beckville (Cotton Valley) | Harrison | 1 | 36K | 4.22M | Feb 2017 – Aug 2026 |
| Jordan Ranch "J" O-8-22530 | Robertson Resources, Inc. only | Suggs (Ellenburger) | Nolan | 1 | 35.8K | 30.1K | by Jan 1993 – Aug 2024 |
| Morton O-11-68711 | Pierce Production Company, LLC only | Robertson, N. (San Andres) | Gaines | 1 | 35.7K | 647 | Nov 2004 – Feb 2020 |
| Robbins, Wayne "A" O-8-29905 | Delta Oil & Gas Ltd. only | Knight (Duffer, Lo. 4050) | Stephens | 5 | 35.5K | 362K | Mar 2007 – Aug 2026 |
| Robertson, George G-6-263910 | Valence Operating Company only | Carthage (Haynesville Shale) | Harrison | 1 | 35.4K | 3.06M | Apr 2011 – Aug 2026 |
| Foxtrot O-9-15924 | Tall Dune Resources, LLC only | Probandt (Canyon) | Sterling | 1 | 35.4K | 176K | Sep 2005 – Aug 2026 |
| Robertson 1070 O-11-69925 | Gungoll, Carl E. Exploration LLC only | Hoople (Clear Fork) | Crosby | 3 | 35.3K | 0 | Aug 2012 – Aug 2026 |
| Robinson-Terry G-5-131703 | Flamingo Oil & Gas only | Eileen Sullivan (Glen Rose) | Leon | 1 | 35.3K | 1.85M | by Jan 1993 – Aug 2026 |
| Minchew G-14-252137 | BE Anadarko II, LLC only | Roberts Co. (St. Louis) | Roberts | 1 | 35.2K | 2.25M | Mar 2009 – Aug 2026 |
| Furr Robinson - C O-13-25770 | Embassy Oil Company only | Embassy, West (Miss.) | Archer | 1 | 35.2K | 137 | by Jan 1993 – Aug 2006 |
| Waggoner -Rob- O-13-15049 | Finnell Oil Services, Inc. only | Wilbarger County Regular | Wilbarger | 3 | 35K | 21 | by Jan 1993 – Aug 2026 |
| Robertson, Leo O-10-30626 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Midland | 1 | 35K | 149K | by Jan 1993 – Jun 2018 |
| Robbins 1 O-9-18089 | Pioneer Natural Res. USA, Inc. only | Blue Danube (Strawn) | Upton | 1 | 34.9K | 1.84M | Aug 2012 – Sep 2015 |
| Glo 8 Rob State Unit O-14-9438 | Unbridled Resources, LLC only | Lard Ranch (Granite Wash -C-) | Roberts | 1 | 34.7K | 431K | Apr 2015 – Oct 2023 |
| Smalley-Robinson Unit O-3-25659 | Wildfire Energy Operating LLC only | Giddings (Eagleford) | Burleson | 1 | 34.7K | 0 | Jun 2010 – Aug 2025 |