| Waterfield O-14-4754 | Unit Petroleum Company only | Mendota, NW. (Douglas, Lo.) | Roberts | 1 | 144K | 34.5K | Jan 1993 – Apr 2026 |
| Waterfield "C" O-14-8067 | Unit Petroleum Company only | Mendota, NW. (Douglas, Lo.) | Roberts | 3 | 128K | 365K | Oct 2009 – Apr 2026 |
| Isaacs 1 O-14-9419 | Bce-Mach III LLC only | Mendota, NW. (Douglas, Lo.) | Hemphill | 1 | 98.1K | 322K | Sep 2014 – Sep 2021 |
| Isaacs, John C. Jr., Etal -F- O-14-3993 | BP America Production Company only | Mendota, NW. (Douglas, Lo.) | Hemphill | 4 | 72.4K | 213K | Jan 1993 – May 2009 |
| Waterfield, J.B. O-14-9459 | Unit Petroleum Company only | Mendota, NW. (Douglas, Lo.) | Roberts | 1 | 42.1K | 197K | Dec 2015 – Apr 2026 |
| Christie - Tipps O-14-6951 | Momentum Operating Co., Inc. only | Mendota, NW. (Douglas, Lo.) | Roberts | 1 | 32K | 77.8K | Oct 1993 – Jul 2010 |
| Vollmert 'C' O-14-9507 | Unit Petroleum Company only | Mendota, NW. (Douglas, Lo.) | Hemphill | 1 | 17.9K | 115K | Dec 2016 – Apr 2026 |
| Vollmert O-14-4129 | Unit Petroleum Company only | Mendota, NW. (Douglas, Lo.) | Hemphill | 2 | 15.1K | 444K | Jan 1993 – Jul 2013 |
| Issacs 205 O-14-4256 | Cimarex Energy Co. of Colorado only | Mendota, NW. (Douglas, Lo.) | Hemphill | 2 | 13.8K | 69.9K | Jan 1993 – Nov 2003 |
| Flowers Trust "A" O-14-6875 | Blackbeard Operating, LLC only | Mendota, NW. (Douglas, Lo.) | Roberts | 3 | 11.6K | 326K | Aug 1993 – Jul 2020 |
| Vollmert, J. C. O-14-4563 | Mmgl Txph, LLC only | Mendota, NW. (Douglas, Lo.) | Roberts | 3 | 10.4K | 394K | Jan 1993 – Jun 2014 |
| Webb, Lois G-14-139996 | Mmgl Txph, LLC only | Mendota, NW. (Douglas, Lo.) | Roberts | 1 | 8.51K | 683K | Jan 1993 – Jan 2017 |
| Tipps, Christie "A" O-14-6309 | Tide West Oil Company only | Mendota, NW. (Douglas, Lo.) | Roberts | 1 | 6.76K | 16.8K | Jan 1993 – May 1993 |
| Flowers Trust -B- G-14-91326 | Mmgl Txph, LLC only | Mendota, NW. (Douglas, Lo.) | Roberts | 1 | 3.49K | 604K | Jan 1993 – Apr 2010 |
| Mahler O-14-5061 | Unit Petroleum Company only | Mendota, NW. (Douglas, Lo.) | Roberts | 1 | 3.48K | 904 | Oct 2007 – Jun 2013 |
| Vollmert G-14-275954 | Unit Petroleum Company only | Mendota, NW. (Douglas, Lo.) | Roberts | 1 | 1.56K | 115K | Aug 2013 – Feb 2021 |
| Flowers Trust G-14-93150 | Mmgl Txph, LLC only | Mendota, NW. (Douglas, Lo.) | Roberts | 1 | 1.31K | 317K | Jan 1993 – Oct 2017 |
| Flowers-Liston O-14-4616 | Midgard Energy Company only | Mendota, NW. (Douglas, Lo.) | Roberts | 2 | 1.3K | 13.7K | Jan 1993 – Jan 1996 |
| Vollmert, J. C. G-14-278014 | Mmgl Txph, LLC only | Mendota, NW. (Douglas, Lo.) | Roberts | 1 | 1.21K | 58.3K | Jun 2014 – Jul 2020 |
| Tipps, O. R. Estate O-14-6088 | Tide West Oil Company only | Mendota, NW. (Douglas, Lo.) | Roberts | 1 | 954 | 2.53K | Jan 1993 – May 1993 |
| Flowers A G-14-93031 | Mmgl Txph, LLC only | Mendota, NW. (Douglas, Lo.) | Roberts | 1 | 719 | 889K | Jan 1993 – Aug 2021 |
| Vollmert, J. C. G-14-91902 | Mmgl Txph, LLC only | Mendota, NW. (Douglas, Lo.) | Roberts | 1 | 580 | 113K | Jan 1993 – Mar 2000 |
| Flowers Trust "A" O-14-4455 | Exxon Corp. only | Mendota, NW. (Douglas, Lo.) | Roberts | 3 | 554 | 9.15K | Jan 1993 – Jul 1993 |
| Flowers 84 O-14-4881 | Cimarex Energy Co. of Colorado only | Mendota, NW. (Douglas, Lo.) | Hemphill | 4 | 146 | 0 | Oct 1993 – Dec 1995 |
| Chambers 79 O-14-9812 | Mmgl Txph, LLC only | Mendota, NW. (Douglas, Lo.) | Roberts | 1 | 143 | 159 | Apr 2025 – Apr 2026 |
| Flowers 61 O-14-5091 | Bce-Mach III LLC only | Mendota, NW. (Douglas, Lo.) | Hemphill | 4 | 10 | 0 | Jun 1994 – Jun 1994 |
| Wiggins, T.D. "B" O-14-5083 | BP America Production Company only | Mendota, NW. (Douglas, Lo.) | Hemphill | 1 | 1 | 0 | Sep 1995 – Sep 1995 |
| Vollmert O-14-8494 | Apache Corporation only | Mendota, NW. (Douglas, Lo.) | Roberts | 1 | 0 | 0 | — |
| Wiggins, T.D. O-14-4566 | Crescendo Resources, L.P. only | Mendota, NW. (Douglas, Lo.) | Hemphill | 1 | 0 | 0 | — |
| Isaacs, John C. Jr., Etal -G- O-14-4020 | Maxus Exploration Company only | Mendota, NW. (Douglas, Lo.) | Hemphill | 1 | 0 | 0 | — |
| Flowers 84 G-14-250872 | Bce-Mach III LLC only | Mendota, NW. (Douglas, Lo.) | Roberts | 1 | 0 | 0 | — |
| Flowers, Vernon M. Estate O-14-5734 | BP America Production Company only | Mendota, NW. (Douglas, Lo.) | Roberts | 1 | 0 | 0 | — |
| Flowers Trust -B- G-14-204769 | Mmgl Txph, LLC only | Mendota, NW. (Douglas, Lo.) | Roberts | 1 | 0 | 767 | Aug 2004 – Dec 2004 |
| Flowers "B" O-14-4672 | Devon Energy Production Co, L.P. only | Mendota, NW. (Douglas, Lo.) | Roberts | 1 | 0 | 0 | — |