| Fowler-Smith 12-7 O-10-51546 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Glasscock | 11 | 2.58M | 5.51M | Feb 2019 – Apr 2026 |
| Houston Ranch 12-Fowler A O-10-46595 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Glasscock | 7 | 2.01M | 2.45M | Aug 2014 – Apr 2026 |
| Fowler 19B O-10-53278 | Ovintiv USA Inc. only | Spraberry (Trend Area) | Glasscock | 2 | 603K | 934K | Sep 2019 – Apr 2026 |
| Fowler 34-193 O-10-40254 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Ward | 3 | 520K | 1.23M | May 2010 – Oct 2016 |
| Blake Fowler Unit O-10-45852 | Permian Resources Operating, LLC only | Hoefs T-K (Wolfcamp) | Reeves | 2 | 490K | 517K | Aug 2014 – Apr 2026 |
| Tom-Fowler 42P O-10-52999 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Glasscock | 1 | 470K | 395K | Aug 2019 – Apr 2026 |
| Fowler 19C O-10-53244 | Ovintiv USA Inc. only | Spraberry (Trend Area) | Glasscock | 1 | 435K | 292K | Sep 2019 – Apr 2026 |
| Tom-Fowler 42O O-10-49532 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Glasscock | 1 | 378K | 452K | Aug 2019 – Apr 2026 |
| Fowler State Unit 1720 G-10-285590 | Apache Corporation only | Phantom (Wolfcamp) | Reeves | 1 | 370K | 2.54M | Jun 2017 – Apr 2026 |
| Tom-Fowler 42Q O-10-53001 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Glasscock | 1 | 367K | 293K | Aug 2019 – Apr 2026 |
| Fowler, E. L. 302 O-5-3215 | Union Oil Company of California only | Van (Austin Chalk) | Van Zandt | 15 | 351K | 816K | Jan 1993 – Apr 2011 |
| Tom-Fowler 42M O-10-50051 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Glasscock | 1 | 298K | 758K | Dec 2017 – Apr 2026 |
| Fowlerton a Unit O-1-18659 | EOG Resources, Inc. only | Eagleville (Eagle Ford-1) | La Salle | 1 | 294K | 506K | Nov 2015 – Apr 2026 |
| Pilgreen G-2-179361 | Fowler Oil & Gas LLC only | Speaks, SW (Middle Wilcox-Cons.) | Lavaca | 1 | 289K | 6.78M | Jul 2000 – Mar 2026 |
| Fowler 193/194 A G-10-295679 | Mewbourne Oil Company only | Phantom (Wolfcamp) | Ward | 1 | 259K | 624K | Jul 2023 – Apr 2026 |
| Fowlerton B Unit O-1-18739 | EOG Resources, Inc. only | Eagleville (Eagle Ford-1) | McMullen | 1 | 256K | 443K | Mar 2016 – Apr 2026 |
| Tom-Fowler 42N O-10-50258 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Glasscock | 1 | 245K | 902K | Dec 2017 – Apr 2026 |
| Fowler 193/194 B G-10-298785 | Mewbourne Oil Company only | Phantom (Wolfcamp) | Ward | 1 | 239K | 589K | Nov 2024 – Apr 2026 |
| Fowlerton C Unit O-1-18740 | EOG Resources, Inc. only | Eagleville (Eagle Ford-1) | McMullen | 1 | 237K | 427K | Mar 2016 – Apr 2026 |
| Kolar, Ed G-2-139118 | Fowler Oil & Gas LLC only | Vienna (Wilcox, Middle U) | Lavaca | 1 | 229K | 3.76M | Jan 1993 – Mar 2026 |
| Fowler State Unit 1720 G-10-285591 | Apache Corporation only | Phantom (Wolfcamp) | Reeves | 1 | 221K | 2.35M | May 2018 – Apr 2026 |
| Kolar, Ed G-2-143866 | Fowler Oil & Gas LLC only | Vienna (Wilcox, Middle U) | Lavaca | 1 | 204K | 4.9M | Jan 1993 – Mar 2026 |
| Fowler 193/194 C G-10-298715 | Mewbourne Oil Company only | Phantom (Wolfcamp) | Ward | 1 | 197K | 482K | Nov 2024 – Apr 2026 |
| Kolar, Ed G-2-148410 | Fowler Oil & Gas LLC only | Vienna (Wilcox, Middle U) | Lavaca | 1 | 193K | 3.48M | Dec 1993 – Mar 2026 |
| Kolar, Ed G-2-145603 | Fowler Oil & Gas LLC only | Vienna (Wilcox, Middle U) | Lavaca | 1 | 170K | 2.43M | Jan 1993 – Mar 2026 |
| Kolar, Ed G-2-129394 | Fowler Oil & Gas LLC only | Vienna (Wilcox, Middle U) | Lavaca | 1 | 160K | 3.65M | Jan 1993 – Mar 2026 |
| Fowler 193/194 A O-10-59966 | Mewbourne Oil Company only | Sandbar (Bone Spring) | Ward | 1 | 156K | 386K | Jul 2023 – Apr 2026 |
| Kolar, Ed G-2-147341 | Fowler Oil & Gas LLC only | Vienna (Wilcox, Middle U) | Lavaca | 1 | 156K | 2.46M | Sep 1993 – Mar 2026 |
| Fowler, A. J. O-5-1113 | Basa Resources, Inc. only | Van | Van Zandt | 3 | 146K | 24.1K | Jan 1993 – Apr 2026 |
| Migl-Quinn G-2-173089 | Fowler Oil & Gas LLC only | Speaks, SW (Middle Wilcox-Cons.) | Lavaca | 1 | 146K | 4.35M | Oct 1998 – Sep 2025 |
| Fowler 34-193 O-10-48454 | Anadarko E&P Onshore LLC only | Sandbar (Bone Spring) | Ward | 2 | 145K | 387K | Nov 2016 – Apr 2026 |
| Stovall G-2-200146 | Fowler Oil & Gas LLC only | Crandall Rubie (Wilcox Cons.) | Lavaca | 1 | 143K | 3.95M | Jun 2003 – Mar 2026 |
| Pilgreen G-2-174660 | Fowler Oil & Gas LLC only | Speaks, SW (Middle Wilcox-Cons.) | Lavaca | 1 | 125K | 5.29M | Sep 1998 – Jun 2010 |
| Page Fowler 12 O-10-42745 | Burleson Petroleum, Inc. only | Spraberry (Trend Area) | Glasscock | 2 | 124K | 430K | May 2012 – Apr 2026 |
| Fowler 34-193 G-10-279367 | Anadarko E&P Onshore LLC only | Sandbar (Bone Spring) | Ward | 1 | 106K | 461K | Jul 2015 – Feb 2025 |
| Fowler "22" O-10-39348 | Ovintiv USA Inc. only | Spraberry (Trend Area) | Glasscock | 2 | 102K | 331K | Dec 2008 – Apr 2026 |
| Neuhaus G-2-231359 | Fowler Oil & Gas LLC only | Vienna (Wilcox, Middle U) | Lavaca | 1 | 91.2K | 2.37M | Sep 2007 – Mar 2026 |
| Mitchell "E" O-2-8698 | Fowler Oil & Gas LLC only | Speaks, SW. (Wilcox -A-) | Lavaca | 1 | 88.6K | 51.5K | Jan 2002 – Mar 2016 |
| Stamper-Fowler O-13-31677 | Oakridge Oil and Gas, LP only | JMG Mag (Miss) | Jack | 9 | 87.8K | 1.38M | Jan 2010 – Apr 2019 |
| Fowler, W.B. O-2-8060 | Angel Operating LLC only | Ganado, West | Jackson | 2 | 79.6K | 59.4K | Mar 1995 – Jul 2014 |
| Fowler G-3-281747 | Geosouthern Operating II, LLC only | Giddings (Austin Chalk, Gas) | Washington | 1 | 78.9K | 5.59M | Dec 2016 – Apr 2026 |
| Fowler "A" O-10-38462 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Glasscock | 2 | 74.1K | 162K | Oct 2007 – Jun 2021 |
| Fowler Farm Oil Company O-13-5313 | Kuran Resources only | Wichita County Regular | Wichita | 9 | 71.3K | 52 | Jan 1993 – Mar 2026 |
| Fowler O-13-17935 | R2Q Operating LLC only | Wichita County Regular | Wichita | 24 | 69.4K | 23 | Jan 1993 – Feb 2026 |
| Fowler, E. L. 302 O-5-3496 | Union Oil Company of California only | Van (Pecan Gap) | Van Zandt | 3 | 65.3K | 73.2K | Sep 1994 – Jun 2011 |
| Fowler, W. B. O-2-1447 | Miller, W. C. Operating Company only | Sandy Creek | Jackson | 4 | 60.8K | 14.8K | Jan 1993 – Oct 2007 |
| Pilgreen G-2-191829 | Fowler Oil & Gas LLC only | Speaks, SW (Middle Wilcox-Cons.) | Lavaca | 1 | 60.7K | 1.37M | Mar 2001 – Mar 2026 |
| Fowler "B" O-10-38688 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Glasscock | 3 | 55.2K | 130K | Aug 2008 – Sep 2022 |
| Fowler, J. F. et Al O-11-60541 | Cross Timbers Energy, LLC only | Cedar Lake, SE. (San Andres) | Dawson | 2 | 53.4K | 2.9K | Jan 1993 – Apr 2026 |
| Kolar, Ed O-2-8772 | Fowler Oil & Gas LLC only | Vienna (Wilcox, Middle U) | Lavaca | 1 | 49.6K | 229K | Jan 2003 – Mar 2026 |