| Briley O-11-4485 | Texas Crude Operator, Inc. only | Mungerville (Pennsylvanian) | Dawson | 1 | 5.51K | 44 | by Jan 1993 – Dec 1997 |
| Briley O-13-21224 | Pop Operating Company only | Mercury (Strawn) | Jack | 2 | 5.33K | 440 | by Jan 1993 – Jul 2026 |
| Briley-Bredemeyer O-9-13405 | Horizon Well Services, Inc. only | Winters (Capps) | Runnels | 2 | 5.28K | 3.91K | by Jan 1993 – Aug 1996 |
| Olex U. S. G-13-220157 | Briley Operating, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 5K | 393K | May 2006 – Jul 2021 |
| Baggett O-1-4594 | Riley Exploration, LLC only | Big Wells (San Miguel) | Dimmit | 1 | 4.77K | 26 | by Jan 1993 – Jan 2008 |
| Olex U. S. G-13-227369 | Briley Operating, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 4.67K | 445K | Mar 2007 – Aug 2020 |
| Riley G-13-195275 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 4.62K | 200K | May 2003 – Mar 2021 |
| Champion A G-13-240062 | Briley Operating, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 4.33K | 777K | Nov 2007 – Apr 2024 |
| Riley Trust G-6-221171 | TGNR East Texas II LLC only | Waskom (Cotton Valley) | Harrison | 1 | 4.32K | 514K | May 2006 – Aug 2026 |
| Lea "B" Unit G-13-195312 | Briley Operating, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 4.31K | 446K | Jun 2003 – May 2025 |
| Porter-Riley G-13-234446 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 4.15K | 525K | Feb 2006 – Aug 2026 |
| Riley O-14-8715 | Upland Resources LLC only | Lipscomb, S.E. (Cleveland) | Hemphill | 1 | 4.1K | 22.1K | Dec 2011 – Dec 2024 |
| Marquis O-3-19662 | Riley Exploration Opg Co, LLC only | Serbin (Taylor Sand) | Lee | 1 | 4.04K | 10.8K | by Jan 1993 – Dec 2013 |
| Champion A G-13-240189 | Briley Operating, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 3.99K | 1.51M | Sep 2007 – Apr 2024 |
| Choat "West" O-13-24556 | R.J. Riley Operating, LLC only | Young County Regular | Young | 8 | 3.84K | 142 | by Jan 1993 – Apr 2025 |
| Riley, Lanham G-13-227440 | BKV Barnett II, LLC only | Newark, East (Barnett Shale) | Parker | 1 | 3.73K | 1.35M | Feb 2007 – Aug 2026 |
| Riley, Mary Ella Shaw -A- O-1-10837 | Beta Oil Corporation only | Somerset | Atascosa | 3 | 3.07K | 55 | by Jan 1993 – Aug 2026 |
| Briley O-9-16370 | 3-D Oil & Gas only | Dick Richardson (Palo Pinto,li.) | Runnels | 1 | 3.05K | 0 | Oct 2007 – Oct 2015 |
| Riley 48 a Unit O-10-44868 | Apache Corporation only | Spraberry (Trend Area) | Glasscock | 1 | 3.05K | 17.9K | Oct 2012 – Nov 2014 |
| Gardner O-9-8301 | R & R Well Service, Inc. only | Briley (Palo Pinto) | Runnels | 1 | 2.83K | 55 | by Jan 1993 – May 2000 |
| Briley, Ray O-6-10603 | Oto, Co. only | Talco | Franklin | 4 | 2.75K | 14 | by Jan 1993 – Jul 1994 |
| Riley-Amoco G-14-224060 | Blackbeard Operating, LLC only | Allison Parks (Granite Wash) | Hemphill | 1 | 2.68K | 366K | Sep 2006 – Jun 2014 |
| Otto O-2-9615 | Riley Exploration, LLC only | Eagleville (Eagle Ford) | Gonzales | 1 | 2.53K | 797 | Nov 2010 – Nov 2010 |
| Poage "692" O-8-28024 | Riley Production only | Florence (Miss.) | Throckmorton | 1 | 2.45K | 12 | Oct 1996 – Sep 1997 |
| Wadley O-13-27463 | R.J. Riley Operating, LLC only | Young County Regular | Young | 1 | 2.33K | 37.2K | by Jan 1993 – Aug 2025 |
| Cargill, G. E. O-6-13391 | Brammer-Keystone Energy, L.L.C. only | Waskom (Riley 6225) | Harrison | 1 | 2.27K | 49.5K | Jun 1994 – Nov 1995 |
| Riley, E. E. O-13-21728 | Sky Resources, Inc. only | Eliasville, N. (Congl) | Young | 3 | 2.23K | 14.5K | by Jan 1993 – Apr 2007 |
| Riley Unit G-13-194127 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 2.22K | 211K | Feb 2003 – Jun 2017 |
| Champion A G-13-194059 | Briley Operating, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 2.05K | 317K | Mar 2003 – Apr 2024 |
| Riley Unit G-13-194125 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 2.02K | 238K | Feb 2003 – Oct 2016 |
| Wadley "B" O-13-27632 | R.J. Riley Operating, LLC only | Young County Regular | Young | 1 | 2.01K | 12.4K | by Jan 1993 – Jul 2012 |
| Riley G-8-125375 | Petex only | Frasier (Marble Falls Congl.) | Stephens | 1 | 2K | 565K | by Jan 1993 – Aug 2026 |
| Champion A G-13-191740 | Briley Operating, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 1.75K | 273K | Oct 2002 – Apr 2024 |
| Riley-Jenkins G-4-167095 | Cobbs Brothers Oil & Gas only | Jeffress, S.E. (Vicksburg T) | Hidalgo | 1 | 1.72K | 45.5K | Aug 1997 – Nov 1997 |
| Henley Hrs. "B" O-13-27576 | R.J. Riley Operating, LLC only | Young County Regular | Young | 2 | 1.68K | 21 | by Jan 1993 – Feb 1995 |
| D. Riley O-10-26951 | Pitts Energy Co. only | J. L. M. (Mississippian) | Martin | 1 | 1.67K | 2.19K | by Jan 1993 – Apr 1993 |
| Marks, Emma O-9-13095 | Anderson, James K. Inc. only | Briley (Capps) | Runnels | 1 | 1.6K | 15.1K | by Jan 1993 – Jul 1996 |
| Riley Unit G-13-194130 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 1.58K | 219K | Mar 2003 – Jun 2017 |
| Riley G-14-23921 | Burk Royalty Co., Ltd. only | Panhandle, West | Hutchinson | 1 | 1.56K | 492K | by Jan 1993 – Aug 2026 |
| Riley "B" O-11-60609 | Scythian, Ltd. only | Brumley (Seven Rivers) | Gaines | 2 | 1.48K | 35 | by Jan 1993 – Dec 1995 |
| Riley, Homer G-13-191947 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 1.44K | 328K | Nov 2002 – Jun 2019 |
| Riley -B- O-1-11719 | Production Resources, Inc. only | Somerset | Atascosa | 1 | 1.39K | 8 | by Jan 1993 – Mar 2019 |
| Bridemeyer-Yates O-9-13256 | Heart Land Petroleum Corporation only | Briley, SE. (Fry, Upper) | Runnels | 1 | 1.38K | 23 | by Jan 1993 – Feb 1995 |
| Riley Gas Unit G-14-86700 | Complete Oil & Gas Services, LLC only | Hansford (Morrow, Middle) | Hansford | 1 | 1.36K | 716K | by Jan 1993 – Apr 2014 |
| Riley-Jenkins G-4-176933 | Cobbs Brothers Oil & Gas only | Jeffress, S.E. (Vicksburg T) | Hidalgo | 1 | 1.32K | 52.9K | Apr 2000 – Nov 2001 |
| Olex U. S. G-13-200105 | Briley Operating, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 1.25K | 550K | Dec 2003 – Apr 2020 |
| Riley North O-14-5800 | Lera only | Panhandle Hutchinson County Fld. | Hutchinson | 1 | 1.22K | 65.7K | by Jan 1993 – Apr 2007 |
| Riley O-1-21750 | Atlas Operating LLC only | Benton City S, (Anacacho) | Atascosa | 1 | 1.18K | 0 | Apr 2025 – Aug 2026 |
| Scott-Remington O-13-24592 | R.J. Riley Operating, LLC only | Young County Regular | Young | 2 | 1.15K | 1.55K | by Jan 1993 – Dec 2008 |
| Martin "B" O-8-17093 | Riley Production only | Throckmorton County Regular | Throckmorton | 1 | 919 | 34 | by Jan 1993 – Jan 1996 |