| Foster, Mary O-10-38598 | Basa Resources, Inc. | Coahoma, N. (Wolfcamp) | 2 | 44.3K | 40.1K | Dec 2007 – Apr 2026 |
| McKenney, T. L. -A- O-10-17470 | Baylor Operating, LLC | Iatan, East Howard | 13 | 44.1K | 66 | Jan 1993 – Dec 2023 |
| V. T. McCabe O-10-28783 | SD Royale Energy, Inc. | Jameson, N. (Strawn 6050) | 8 | 43.9K | 265K | Jan 1993 – Dec 2025 |
| Brennand, Est of R. S. Jr. O-10-25059 | Unitex Oil & Gas, L.L.C. | Westbrook, East (Clear Fork) | 3 | 43.9K | 21 | Jan 1993 – Apr 2026 |
| Lotspeich O-10-28549 | Cedar Bend Oil Company | Iatan, East Howard | 4 | 43.8K | 23 | Jan 1993 – Apr 2026 |
| McCabe, J.F. "A" O-10-24679 | SD Royale Energy, Inc. | Jameson, North (Strawn) | 8 | 43.5K | 38.5K | Jan 1993 – Jul 2024 |
| Morrison O-10-14158 | Swjn Oil Company | Westbrook | 4 | 43.3K | 23 | Jan 1993 – Apr 2026 |
| Hardee O-10-677 | M & M General Contractors, Inc. | Coleman Ranch, N. (Clear Fork) | 5 | 43.2K | 35 | Feb 1993 – Jan 2013 |
| McKenney, T. L. -C- O-10-17788 | Baylor Operating, LLC | Iatan, East Howard | 9 | 43K | 66 | Jan 1993 – Nov 2023 |
| McGee O-10-44530 | Owl Ops LLC | Garden City, S. (Wolfcamp) | 1 | 42.3K | 147K | Jul 2013 – Apr 2026 |
| Dunn O-10-37362 | Sharp Image Energy, Inc. | STM (Canyon Reef) | 1 | 42K | 96.5K | Jul 2004 – Jan 2012 |
| McCabe, V. T. O-10-36956 | SD Royale Energy, Inc. | Jameson N. (Ellen) | 3 | 41.9K | 57.8K | Sep 2002 – Nov 2022 |
| Mills, Carol C. "B" O-11-8895 | Schlachter Operating Corporation | Sharon Ridge (1700) | 4 | 41.8K | 105 | Jan 1993 – Apr 2026 |
| McKenney, T.L. "E" O-10-24147 | Baylor Operating, LLC | Iatan, East Howard | 5 | 41.7K | 54 | Jan 1993 – Jan 2020 |
| Adoue O-10-44606 | Owl Ops LLC | Garden City, S. (Wolfcamp) | 1 | 40.9K | 43.5K | Jul 2013 – Apr 2026 |
| Barber O-10-29984 | Swjn Oil Company | Dockrey (Clear Fork) | 3 | 40.8K | 23 | Jan 1993 – Apr 2026 |
| Morrison 36-B O-10-25632 | Melrose Operating Company | Turner-Gregory (Clear Fork) | 4 | 40.8K | 21 | Jan 1993 – Sep 2002 |
| Wallace "A" O-8-27188 | Smith Pipe of Abilene | Silvercreek (Strawn Lime) | 1 | 40.6K | 120K | Apr 1994 – Apr 1998 |
| Coleman Ranch O-11-65991 | Vista Energy Corp. | Sharon Ridge (Clear Fork) | 5 | 40.2K | 21 | Jan 1993 – Apr 2026 |
| Mills O-11-5793 | Schlachter Operating Corporation | Sharon Ridge (1700) | 5 | 40K | 21 | Jan 1993 – Jul 2002 |
| Bryant O-10-34944 | Cedar Bend Oil Company | Westbrook | 2 | 40K | 208 | Aug 1996 – Apr 2026 |
| Rannefeld, Dortha O-10-24850 | SD Royale Energy, Inc. | Jameson, North (Strawn) | 2 | 39.6K | 23.6K | Jan 1993 – Apr 2026 |
| Kruse, H. G. O-11-61319 | GNG Operating LLC | Sharon Ridge (1700) | 9 | 39.5K | 61 | Jan 1993 – Jan 2025 |
| Burchard O-10-26371 | One Nickel Operating LLC | Coleman Ranch | 6 | 39.2K | 28 | Jan 1993 – Apr 2026 |
| Spade Ranch O-10-40875 | Crownquest Operating, LLC | Ray Albaugh (Wolfcamp) | 4 | 39K | 7.62K | Aug 2010 – Jan 2026 |
| Morrison-Gill O-10-24879 | Diamondback E&P LLC | Westbrook (Clear Fork, Upper) | 3 | 38.7K | 21 | Jan 1993 – May 2011 |
| Morwest O-10-38351 | Grayrock Energy II, LLC | Westbrook | 2 | 38.3K | 0 | Nov 2007 – Mar 2026 |
| Sterling Family Trust "D" O-10-34361 | MDC Operating, Inc. | Double "B" (Canyon) | 1 | 38.2K | 69.8K | Jan 1995 – Aug 1998 |
| McMillan, Versie O-11-61984 | Unitex Oil & Gas, L.L.C. | Sharon Ridge (1700) | 11 | 38.1K | 121 | Jan 1993 – Apr 2026 |
| Humphreys, J. H. "B" O-11-9653 | GNG Operating LLC | Sharon Ridge (1700) | 11 | 37.6K | 1.12K | Jan 1993 – Sep 2025 |
| Simpson, O. L. O-10-25746 | Unitex Oil & Gas, L.L.C. | Coleman Ranch, N. (Clear Fork) | 8 | 37.6K | 19 | Jan 1993 – Jan 2020 |
| Red Deer 27 O-10-39441 | Kek Exploration LLC | Ellwood Ranch (Ellenburger) | 1 | 37.3K | 1.78K | Aug 2006 – May 2009 |
| Mayse O-10-44105 | Devon Energy Production Co, L.P. | Garden City, S. (Wolfcamp) | 1 | 37K | 49.2K | Nov 2012 – Jul 2015 |
| Minatra "B" O-11-65845 | Swjn Oil Company | Sharon Ridge (1700) | 4 | 35.9K | 145 | Jan 1993 – Apr 2026 |
| Adams O-10-26045 | GNG Operating LLC | Turner-Gregory (Clear Fork) | 2 | 35.6K | 101 | Jan 1993 – Mar 2026 |
| McKenney, T. L. O-10-16071 | Baylor Operating, LLC | Iatan, East Howard | 6 | 35K | 69 | Jan 1993 – Oct 2023 |
| Sun-Georgia Tech O-10-7867 | Rasmussen, Tom | Westbrook | 3 | 34.8K | 28 | Jan 1993 – Sep 2020 |
| Raiter O-10-36005 | Nordstrand Engineering, Inc. | Westbrook, East (Clear Fork) | 1 | 34.8K | 0 | Apr 1999 – Apr 2026 |
| Nail "10" O-10-34831 | Katsco Energy, Inc. | Little Pig (Strawn) | 2 | 34.5K | 396K | Dec 1995 – Dec 2012 |
| Spade Ranch O-10-50402 | Crownquest Operating, LLC | Ellwood (Mississippian) | 4 | 34.1K | 42.7K | Apr 2018 – Apr 2026 |
| Red Angus 48 O-10-44586 | Reatta Energy, Inc. | Purvis Ranch (Wichita Albany) | 1 | 33.9K | 0 | Sep 2013 – Apr 2026 |
| Morrison O-10-27888 | Rasmussen, Tom | Iatan, East Howard | 2 | 33.8K | 21 | Jan 1993 – Aug 2009 |
| Alice "B" O-10-39740 | Unitex Oil & Gas, L.L.C. | Coleman Ranch | 2 | 33.6K | 0 | Oct 2009 – Apr 2026 |
| Wild Bill O-10-37128 | Sabinal Energy Operating, LLC | Almost Not (Ellenburger) | 2 | 33.5K | 429 | Jul 2003 – Feb 2008 |
| Westbrook Southeast Unit O-10-44987 | Bce-Mach III LLC | Westbrook (Clear Fork, Upper) | 8 | 33.4K | 2K | Aug 2012 – Apr 2026 |
| Enterprise O-10-35915 | McDonnold Operating, Inc. | Enterprise (Strawn) | 1 | 33.3K | 0 | Jul 1998 – Sep 2012 |
| Mitchell -B- Fee O-10-17052 | Baylor Operating, LLC | Iatan, East Howard | 18 | 33.2K | 66 | Jan 1993 – Oct 2021 |
| Glass 16 O-10-37707 | Highmark Energy Operating, LLC | A & S (Miss.) | 1 | 33K | 22.3K | Feb 2006 – Dec 2020 |
| Shoemaker, Clara O-10-28331 | Swjn Oil Company | Westbrook, East (Clear Fork) | 6 | 32.9K | 22 | Jan 1993 – Apr 2026 |
| Smart, Mrs. Lea et al 2 O-10-37397 | Energen Resources Corporation | Westbrook (Clear Fork, Upper) | 1 | 32.1K | 1.65K | Aug 2004 – Jan 2008 |