| Riley G-2-212128 | Hughes, Dan A. Company, L.P. only | Cannan, E. (10150 Wilcox) | Bee | 1 | 37.3K | 1.71M | Apr 2005 – Dec 2015 |
| Koenning Unit O-1-15216 | Riley Exploration, LLC only | Pilgrim (Eagleford) | Gonzales | 1 | 36.7K | 29.2K | Jun 2010 – Nov 2010 |
| Riley O-9-16801 | COG Operating LLC only | Spraberry (Trend Area) | Upton | 1 | 35.5K | 252K | Sep 2008 – Apr 2023 |
| Riley, Glenn "C" O-10-23600 | JM Cox Resources, L.P. only | Spraberry (Trend Area) | Glasscock | 4 | 33.7K | 124K | by Jan 1993 – Feb 2011 |
| Riley, Glenn "E" O-10-24184 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Glasscock | 4 | 33.6K | 120K | by Jan 1993 – Sep 2022 |
| LGB 73 Riley O-11-67591 | Aviator Energy, LLC only | Brownfield, SW. (Mississippian) | Terry | 1 | 33.4K | 143 | Jun 1996 – Aug 2026 |
| Sparks, S. L. O-11-16416 | Chevron Midcontinent, L.P. only | Riley, North | Gaines | 2 | 33.4K | 7.18K | by Jan 1993 – Mar 2007 |
| Riley O-13-5237 | Rog Enterprises, LLC only | Wichita County Regular | Wichita | 18 | 33.3K | 21 | by Jan 1993 – Jul 2026 |
| Riley O-6-12080 | Trinity Services, L.L.C. only | Rogers Lake (Glen Rose) | Harrison | 1 | 32.9K | 3.51K | by Jan 1993 – Feb 2002 |
| Sparks, Sam L. O-11-66743 | Seaboard Operating Co. only | Riley, North | Gaines | 1 | 31.7K | 7.13K | by Jan 1993 – Sep 2020 |
| Harris, Riley "A" O-14-5786 | R & a Moore, Inc. only | Wiley (Tonkawa) | Lipscomb | 1 | 31.1K | 141K | by Jan 1993 – Jun 2016 |
| Riley D Unit G-13-268461 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Montague | 1 | 31K | 681K | Mar 2012 – Feb 2026 |
| Porter-Riley G-13-261424 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 30.7K | 1.58M | Feb 2011 – Aug 2026 |
| Droemer et al, Townsite O-3-11950 | Riley Exploration, LLC only | Giddings (Austin Chalk-3) | Lee | 2 | 30.2K | 288K | by Jan 1993 – Oct 2010 |
| Blanch-Riley O-3-20742 | Radco Operations, L.P. only | Sour Lake | Hardin | 1 | 30.1K | 22 | by Jan 1993 – Jul 2026 |
| Riley 10 G-14-262383 | Mmgl Txph, LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 29.2K | 825K | Dec 2010 – Aug 2026 |
| Riley, Glenn O-10-24433 | Diamondback E&P LLC only | Spraberry (Trend Area) | Glasscock | 2 | 28.1K | 119K | by Jan 1993 – Dec 2021 |
| Gersch-Karnstadt 'B' O-3-22060 | Riley Exploration Opg Co, LLC only | Serbin (Taylor Sand) | Lee | 1 | 27.4K | 34.1K | Jun 1993 – Sep 2014 |
| Riley, Robert J. "377" O-11-60087 | Fasken Oil and Ranch, Ltd. only | Bale (San Andres 5500) | Gaines | 2 | 26.9K | 22 | by Jan 1993 – Aug 2026 |
| Porter-Riley G-13-258607 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 25.9K | 2.4M | Jan 2011 – Aug 2026 |
| Riley O-11-16175 | Brady, W. Production, Inc. only | Seminole, North (San Andres) | Gaines | 1 | 25.5K | 428 | by Jan 1993 – Jan 2012 |
| Cook, Walter Jr. O-3-19796 | Riley Exploration Opg Co, LLC only | Serbin (Taylor Sand) | Bastrop | 2 | 25K | 66K | by Jan 1993 – Nov 2015 |
| Standifer-Stone, M.L. O-1-12870 | Riley Exploration, LLC only | Pearsall (Austin Chalk) | Dimmit | 2 | 24.6K | 6.45K | by Jan 1993 – Jun 2009 |
| LGB 73 Riley O-11-67279 | Aviator Energy, LLC only | Brownfield, SE. (Fusselman) | Terry | 2 | 24.6K | 3 | Jul 1994 – Sep 2000 |
| Stewart A O-3-19710 | Riley Exploration Opg Co, LLC only | Serbin (Taylor Sand) | Lee | 1 | 22.8K | 208 | by Jan 1993 – Nov 2013 |
| Durrenberger - Gersch O-3-21646 | Riley Exploration Opg Co, LLC only | Serbin (Taylor Sand) | Lee | 1 | 22.8K | 32.4K | by Jan 1993 – Oct 2014 |
| Riley, Glenn -A- O-10-24633 | Diamondback E&P LLC only | Spraberry (Trend Area) | Glasscock | 1 | 22.6K | 89.1K | by Jan 1993 – Oct 2021 |
| Twister O-11-70335 | WTG Exploration only | Riley, North (Penn) | Gaines | 1 | 22.1K | 0 | May 2014 – Aug 2026 |
| Swarts-Briley O-13-12382 | Pop Operating Company only | Jack County Regular | Jack | 4 | 21.5K | 20 | by Jan 1993 – Aug 2026 |
| Riley 48 O-10-44867 | Apache Corporation only | Spraberry (Trend Area) | Glasscock | 2 | 21.4K | 156K | Jul 2012 – Aug 2026 |
| Burnett, Opal D O-13-29486 | R.J. Riley Operating, LLC only | Young County Regular | Young | 1 | 20.4K | 138K | Mar 1998 – Jul 2026 |
| Henley-Ford O-13-20619 | R.J. Riley Operating, LLC only | Young County Regular | Young | 6 | 20.1K | 6.81K | by Jan 1993 – Aug 2026 |
| Riley "A" G-13-192742 | Century Petroleum, Inc. only | JMG Mag (Miss) | Jack | 1 | 18.8K | 266K | Nov 2002 – Aug 2026 |
| Turk, W. F. & Otto O-9-5002 | Bettis, Boyle & Stovall only | Briley, SE. (Gardner, Lo.) | Runnels | 1 | 18.4K | 36.9K | by Jan 1993 – Feb 2004 |
| Riley-Little Brook (SA) G-13-271029 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 18.1K | 1.77M | Dec 2013 – Aug 2026 |
| Riley C Unit G-13-268439 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Montague | 1 | 18K | 668K | Mar 2012 – Aug 2026 |
| Riley-Little Brook (SA) G-13-271539 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 17.7K | 2.83M | Jun 2013 – Aug 2026 |
| Steglich, J. A. O-3-20039 | Riley Exploration Opg Co, LLC only | Serbin (Taylor Sand) | Bastrop | 1 | 17.7K | 15.1K | by Jan 1993 – Apr 2013 |
| Riley a Unit G-13-268435 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Montague | 1 | 17.4K | 217K | Mar 2012 – Aug 2026 |
| Moerbe, Victor O-3-19471 | Riley Exploration Opg Co, LLC only | Serbin (Taylor Sand) | Lee | 2 | 16.9K | 67.9K | by Jan 1993 – Jan 2015 |
| Henley Heirs "B" O-13-30117 | R.J. Riley Operating, LLC only | Young County Regular | Young | 1 | 16.8K | 70.4K | Feb 2003 – Aug 2026 |
| Webb "A" O-11-68740 | Riley Permian Operating Co, LLC only | Brahaney (Devonian) | Yoakum | 1 | 16.4K | 8.29K | Jul 2004 – Sep 2016 |
| Easterly, S. A. -B- O-13-7334 | R.J. Riley Operating, LLC only | Young County Regular | Young | 3 | 16.3K | 444 | by Jan 1993 – Aug 2026 |
| Riley, J. B. - Fowler Est. O-13-17957 | Felty Production, Inc. only | Wichita County Regular | Wichita | 4 | 15.5K | 28 | by Jan 1993 – Aug 2026 |
| Huber-Riley -J- O-14-1670 | Large Operating LLC only | Panhandle Hutchinson County Fld. | Hutchinson | 5 | 15.3K | 324K | by Jan 1993 – Jun 2019 |
| Lea "B" Unit G-13-200782 | Briley Operating, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 15K | 440K | Mar 2004 – Jul 2023 |
| Randolph O-11-66745 | Riley Permian Operating Co, LLC only | West | Yoakum | 1 | 14.4K | 5.89K | by Jan 1993 – Nov 2021 |
| Riley -B- O-1-11169 | Production Resources, Inc. only | Somerset | Atascosa | 24 | 13.9K | 353 | by Jan 1993 – Aug 2026 |
| Riley-Little Brook (SA) G-13-272032 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 13.6K | 2.55M | Jan 2014 – Aug 2026 |
| Cook, Braden "A" O-3-20793 | Riley Exploration Opg Co, LLC only | Serbin (Taylor Sand) | Lee | 1 | 13.3K | 5.4K | by Jan 1993 – Jan 2013 |