| Richardson Unit O-11-4610 | Cholla Petroleum, Inc. only | P. H. D. | Garza | 26 | 1.51M | 261K | Jan 1993 – Jan 2026 |
| Dawlean Richardson O-1-19842 | FW Eagle Ford I, LLC only | Eagleville (Eagle Ford-1) | Gonzales | 2 | 721K | 486K | Feb 2019 – Jul 2026 |
| Richards North Unit O-3-26573 | FW Eagle Ford I, LLC only | Southern Bay (Eagle Ford) | Fayette | 3 | 569K | 461K | Aug 2014 – Jul 2026 |
| Lambshead D-8 O-8-26697 | Tot Richards Family LP only | Throckmorton County Regular | Throckmorton | 24 | 538K | 132 | Jan 1993 – Jul 2026 |
| Arco-Richardson 5 O-9-13310 | Petroplex Energy Inc. only | Triumph (Wolfcamp) | Upton | 1 | 531K | 1.31M | Jan 1993 – Jul 2026 |
| Richards O-10-37673 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 8 | 422K | 556K | Dec 2005 – Jul 2026 |
| Richards "25" O-10-40259 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 7 | 338K | 628K | Apr 2010 – Jul 2026 |
| Richards Ranch O-13-32285 | FX Energy Operating, LLC only | KRS (Marble Falls) | Jack | 29 | 302K | 8.4M | Jul 2012 – Jul 2026 |
| Richardson Ranch Unit O-3-25563 | Wildfire Energy Operating LLC only | Madisonville, W. (Woodbine -A-) | Brazos | 3 | 291K | 415K | May 2010 – Jul 2026 |
| Richardson, T. J. O-8-26707 | Apache Corporation only | Katz | Knox | 3 | 275K | 1.58K | Jan 1993 – May 2010 |
| Childress-Richardson "4" O-9-13377 | Petroplex Energy Inc. only | Triumph (Wolfcamp) | Upton | 1 | 261K | 633K | Jan 1993 – Jul 2026 |
| Richardson O-1-16224 | CML Exploration, LLC only | Pearsall (Austin Chalk) | Dimmit | 1 | 236K | 62.7K | Nov 2011 – Jul 2026 |
| Bloxom O-9-13795 | Saxum Opco, LLC only | W. Richardson, E. (Wlfc.) | Upton | 2 | 225K | 619K | May 1995 – Jul 2026 |
| Josey, L.M. "A" O-3-19090 | Josey Oil Company, Ltd. only | Joyce Richardson | Harris | 3 | 208K | 103K | Jan 1993 – Jul 2026 |
| Richardson Unit No. 2 O-5-2646 | Culver & Cain Production LLC only | Megan Richey (Woodbine) | Limestone | 1 | 203K | 21 | Jan 1993 – Jul 2026 |
| Richards, D.E. "D" O-10-24861 | Cutbow Operating, LLC only | Spraberry (Trend Area) | Martin | 4 | 201K | 456K | Jan 1993 – Jul 2026 |
| Richards, D. E. O-10-24088 | Cutbow Operating, LLC only | Spraberry (Trend Area) | Martin | 3 | 201K | 512K | Jan 1993 – Jul 2026 |
| Richards, Frank O-13-30523 | Paratus Petroleum LLC only | Lost Valley (Caddo) | Jack | 5 | 191K | 364K | May 2005 – Jul 2026 |
| Clark-Richardson O-13-684 | Palmer Operating LLC only | Archer County Regular | Archer | 26 | 183K | 206 | Jan 1993 – Jul 2026 |
| Richards Unit O-11-70531 | Gunn Oil Company only | Stescott (Canyon) | Cottle | 1 | 175K | 0 | Jan 2017 – Jul 2026 |
| Richards 16 O-11-67685 | HW Operating, LLC only | Elizabeth Rose (Fusselman) | Dawson | 1 | 172K | 81 | Jan 1997 – Jul 2026 |
| Richardson North O-8-29219 | Apache Corporation only | Katz | Knox | 3 | 167K | 0 | Mar 2003 – Feb 2010 |
| Richards O-11-70496 | Gunn Oil Company only | Stescott (Canyon) | Cottle | 3 | 165K | 0 | Sep 2016 – Jul 2026 |
| Richardson Unit NCT O-11-68885 | Cholla Petroleum, Inc. only | P. H. D. | Garza | 4 | 149K | 43.7K | Feb 2006 – Jan 2026 |
| Richardson, J. T. "Abc" O-13-571 | Guidance Oil Developers only | Archer County Regular | Archer | 43 | 149K | 0 | Jan 1993 – Jul 2026 |
| Morrison "B" O-8-14821 | Cooper Oil & Gas, LLC only | Richards Ranch (Home Creek) | Throckmorton | 8 | 130K | 17.5K | Jan 1993 – Jul 2026 |
| Richardson North O-8-30431 | Great American Resources Inc. only | Katz (Strawn) | Knox | 4 | 126K | 0 | Nov 2009 – Jul 2026 |
| Richards O-3-22718 | Kerr-McGee Oil & Gas Onshore LP only | Pure Guts (Yegua) | Wharton | 1 | 125K | 450K | May 1995 – Feb 2011 |
| Childress-Richardson '13' O-9-13527 | Petroplex Energy Inc. only | Triumph (Wolfcamp) | Upton | 1 | 123K | 216K | Oct 1993 – Sep 2022 |
| Richardson O-11-69445 | Canan Mowrey Operating, LLC only | Dalwood (Woods Lime) | Dickens | 1 | 119K | 0 | Jun 2009 – Jul 2026 |
| Richardson O-8-32397 | Chisholm Operating, Inc. only | Grand Old Oplin (Gray) | Taylor | 6 | 118K | 273K | Sep 2019 – Jul 2026 |
| Sheppard-Anne O-6-13734 | Buffco Production Inc. only | Blocker (Richardson Sand) | Harrison | 1 | 114K | 147K | Sep 1997 – Jul 2026 |
| Richardson, J. T. O-13-314 | Olney Oil LLC only | Archer County Regular | Archer | 29 | 108K | 163 | Jan 1993 – Jul 2026 |
| Richards O-10-27789 | Woodbine Production Corporation only | Breedlove, East (Spraberry) | Martin | 3 | 105K | 122K | Jan 1993 – Jul 2026 |
| Bauer O-9-11247 | Hardrock Resources Inc. only | Dick Richardson (Palo Pinto,li.) | Runnels | 1 | 95.7K | 20.8K | Jan 1993 – Jul 2026 |
| Richardson Unit -A- O-11-13106 | Cholla Petroleum, Inc. only | P. H. D. | Garza | 5 | 94K | 2.8K | Jan 1993 – Jan 2026 |
| State O-9-12318 | 3 S Production, Inc. only | Dick Richardson (Gardner Lime) | Runnels | 1 | 90.8K | 117K | Jan 1993 – Mar 2026 |
| Richards "47" O-10-39486 | Diamondback E&P LLC only | Spraberry (Trend Area) | Martin | 3 | 89.7K | 49.3K | Apr 2009 – Jul 2026 |
| Richardson O-9-13669 | Thompson, J. Cleo only | W. Richardson (Wolfcamp) | Upton | 1 | 89.5K | 161K | Aug 1994 – Dec 2020 |
| Sims-Richardson O-11-65059 | Blake Production Company, Inc. only | Spires, W. (Strawn C-1) | Kent | 2 | 89.2K | 57.8K | Jan 1993 – Aug 2017 |
| Richards "45" O-10-39773 | Diamondback E&P LLC only | Spraberry (Trend Area) | Martin | 3 | 87K | 53.1K | Jul 2008 – Jul 2026 |
| Darla, Janice O-8-18444 | Tot Richards Family LP only | Richards Ranch (1830) | Throckmorton | 5 | 82.7K | 19 | Jan 1993 – Jul 2026 |
| Richardson, C.A. O-13-29043 | Daylight Petroleum LLC only | T-N-T (Tannehill) | Knox | 4 | 77.5K | 0 | Oct 1995 – Jul 2026 |
| Matthews, J.B. "82" O-8-26931 | Breck Operating Corp. only | Richards (Congl. Upper) | Throckmorton | 1 | 74.3K | 400K | Jun 1993 – Aug 2017 |
| Richardson 'B' O-10-45644 | New Height Energy, LLC only | Spraberry (Trend Area) | Howard | 2 | 73.5K | 291K | Jun 2014 – Jul 2026 |
| Killian "A" O-3-12397 | Fort Worth Natural Gas, Inc. only | Joyce Richardson (6900 Yegua) | Harris | 1 | 73.1K | 51.1K | Jan 1993 – Jul 2026 |
| Richardson O-10-44647 | New Height Energy, LLC only | Spraberry (Trend Area) | Howard | 2 | 72.7K | 363K | Oct 2013 – Jul 2026 |
| Richardson-Rosenbaum Unit O-3-18283 | All Around Distribution, Inc. only | Clay Creek | Washington | 4 | 71.4K | 36.6K | Jan 1993 – Jul 2026 |
| Wilson, Floyd Oil Unit O-6-12822 | Enpower Resources Inc. only | Blocker (Richardson Sand) | Harrison | 2 | 69.8K | 203K | Jan 1993 – Jul 2026 |
| Richardson 71 O-14-9632 | Mewbourne Oil Company only | Allen-Parker (Marmaton) | Ochiltree | 1 | 69.1K | 846K | May 2018 – Jul 2026 |