| Wood "E" O-2-8474 | Charro Operating, L.L.C. | Sarco Creek (4800) | 13 | 651K | 2.05M | Sep 1999 – Jul 2026 |
| Brinkoeter O-2-8295 | Zinn Petroleum Co. | Hordes Creek (Massive, Upper) | 3 | 603K | 473K | Sep 1997 – Nov 2021 |
| Lambert-Wood O-2-7246 | Wagner Oil Company | Sarco Creek, West (4700) | 3 | 440K | 162K | Jan 1993 – Jul 2026 |
| Harkins O-2-6526 | Charro Operating, L.L.C. | Circle -a- (4880) | 6 | 301K | 885K | Jan 1993 – Feb 2023 |
| Blackburn O-2-55 | Terrafina Energy, LLC | Berclair (Vicksburg) | 18 | 300K | 147K | Jan 1993 – Jul 2026 |
| Wood O-2-8620 | Charro Operating, L.L.C. | Sarco Creek (5100) | 4 | 289K | 84.1K | Sep 2000 – Jul 2026 |
| Oconnor, Dennis Etal -D- O-2-4401 | T-C Oil Company, LLC | Terrell Point (3100) | 2 | 237K | 116K | Jan 1993 – Aug 2021 |
| South Slick O-2-10858 | B D Production Co., Inc. | Slick (Wilcox 7535) | 2 | 229K | 205K | Jul 2014 – Jul 2026 |
| Harris, M.P. O-2-6645 | Cherokee Production LLC | Blanconia, N. (4820) | 2 | 225K | 515K | Jan 1993 – Jul 2026 |
| Albrecht, W. F. O-2-207 | Nog Production & Operating LLC | Brandt | 3 | 155K | 127K | Jan 1993 – Jul 2026 |
| Dornburg Unit O-2-8544 | Coastline Exploration, Inc. | Brandt (Cook Mountain) | 2 | 147K | 121K | Mar 1999 – Jul 2026 |
| Koontz C O-2-6849 | Wagner Oil Company | Sarco Creek, West (4700) | 1 | 146K | 423K | Jan 1993 – Jul 2026 |
| Terrell "A" O-2-8207 | Rincon Petroleum Corporation | Terrell Point (3100) | 2 | 143K | 17.4K | Sep 1996 – Jul 2026 |
| Boyd No. 1 Oil Unit O-2-9064 | T-C Oil Company, LLC | Live Oak Lake, East (4750) | 1 | 137K | 178K | Jun 2006 – Jun 2015 |
| Welder Heirs CJ O-2-11431 | Charro Operating, L.L.C. | Gaffney, SW. (5400) | 5 | 135K | 212K | Nov 2017 – Jul 2026 |
| Pettus Unit O-2-236 | Nog Production & Operating LLC | Cabeza Creek (Slick) | 10 | 106K | 127K | Jan 1993 – Jul 2026 |
| Coutret O-2-7680 | Nog Production & Operating LLC | Albrecht (Yegua) | 1 | 103K | 31K | Jan 1993 – Jul 2026 |
| Reed, D.M. O-2-8891 | Nog Production & Operating LLC | Cabeza Creek, S. (Mackhank) | 1 | 103K | 105K | Apr 2004 – Jul 2026 |
| State of Texas O-2-8270 | Rincon Petroleum Corporation | Terrell Point (3100) | 1 | 99.7K | 505 | Mar 1997 – Jul 2026 |
| Crow-O'Connor O.U. O-2-8040 | Proline Energy Resources Inc | B-S (Vicksburg 3950) | 1 | 95.5K | 229K | Feb 1995 – Jul 2026 |
| Clarkson, E. O-2-5538 | Prime Operating Company | Gaffney, SW. (5300) | 1 | 87.7K | 21 | Jan 1993 – Jul 2026 |
| Tsotsos O-2-8461 | Outline Oil Company LLC | Gottschalt (Cook Mountain) | 1 | 83.1K | 93.8K | Aug 1999 – Jul 2026 |
| Weise, Max O-2-8892 | Erskine Energy, LLC | Weesatche, South ( Yegua 4800) | 1 | 81K | 65.6K | Dec 2003 – Jul 2026 |
| Luker O-2-9886 | Jaybird Resources, LLC | Barvo (Yegua Sand) | 3 | 78.4K | 70.2K | Nov 2011 – Jul 2026 |
| Koontz D O-2-6882 | Wagner Oil Company | Sarco Creek, West (4700) | 1 | 77.7K | 252K | Jan 1993 – May 2025 |
| Harkins, Janie O-2-6990 | Charro Operating, L.L.C. | Sarco Creek, S. (4600) | 1 | 77.2K | 437K | Jan 1993 – Mar 2024 |
| R. Cantu O-2-11491 | Paloma Operating, LLC | Circle -a- (5350 Frio) | 1 | 76.7K | 0 | Mar 2018 – Jul 2026 |
| Wright-Corgey Unit O-2-9869 | Double Play Oil & Gas, Inc | Barvo (Yegua Sand) | 1 | 75.9K | 52.8K | Aug 2011 – Jul 2026 |
| Leggett, R. L. O-2-8440 | Estate of James L. Nelson | Barvo (Yegua Sand) | 2 | 75.5K | 48.5K | Dec 1998 – Oct 2025 |
| Terrell, Etta -A- O-2-6482 | Rincon Petroleum Corporation | Terrell Point (3100) | 1 | 75.3K | 14.2K | Jan 1993 – Aug 2011 |
| Moore, G. "A" O-2-8237 | Terrafina Energy, LLC | Berclair, E. (Vicksburg) | 2 | 73.2K | 16.2K | Dec 1996 – Jul 2026 |
| Harkins O-2-7024 | Charro Operating, L.L.C. | Circle -a- (4800) | 2 | 72.4K | 245K | Jan 1993 – Mar 2018 |
| Bego O-2-6727 | Creston Petroleum Corp. | Alkek, North (L.L.) | 2 | 71.1K | 2.09K | Jan 1993 – Jul 2026 |
| Koontz O-2-7476 | Haas, C. F. Oil & Gas Inc. | Sarco Creek, West (4700) | 1 | 66.2K | 195K | Jan 1993 – Jul 2026 |
| Boyce O-2-8245 | Estate of James L. Nelson | Boyce, North (Yegua) | 1 | 66K | 23.5K | Feb 1997 – Jul 2026 |
| Adair, Dayna C. O-2-8306 | Nelson, James L. | Barvo (Yegua Sand) | 1 | 64.5K | 65.2K | Aug 1997 – Jul 2013 |
| Terrell O-2-58 | Terrafina Energy, LLC | Berclair (Vicksburg) | 6 | 61.5K | 46.7K | Jan 1993 – Jul 2026 |
| Crow, Rebecca O-2-6833 | Tare Resources, LLC | Blanconia, N. (4820) | 3 | 60.2K | 2.54K | Jan 1993 – Jul 2026 |
| Waer, Calvin et AL O-2-7901 | Coastline Exploration, Inc. | Gottschalt (Mackhank 7700) | 2 | 59.1K | 169K | Aug 1993 – Mar 2008 |
| Pettus, J. M. 11, et al Oil Unit O-2-8457 | U.S. Enercorp, Ltd. | Riverdale (9300) | 2 | 59K | 685K | Aug 1999 – Jul 2005 |
| Harkins O-2-6914 | Wagner Oil Company | Circle -a- (4800) | 1 | 53.7K | 896K | Jan 1993 – Jun 2018 |
| Gohlke Unit O-2-8938 | SM Operating Company LLC | Poehler, East (Yegua C) | 1 | 53.4K | 77.5K | Dec 2004 – Jul 2026 |
| Moore, G. O-2-8217 | Terrafina Energy, LLC | Berclair, E. (Vicksburg) | 1 | 53.4K | 4.79K | Oct 1996 – Jul 2026 |
| Worley O-2-8773 | Proline Energy Resources Inc | Brandt (Cook Mountain) | 1 | 52.8K | 12.7K | Jan 2003 – Jun 2018 |
| Lutenbacher O-2-57 | Terrafina Energy, LLC | Berclair (Vicksburg) | 15 | 52.4K | 32.5K | Jan 1993 – Jul 2026 |
| Swickheimer Estate O-2-7866 | American Int'l Energy Corp. | Alkek (3490) | 1 | 50.5K | 88.2K | Mar 1993 – Dec 2000 |
| Boyce, W. W. O-2-4835 | Estate of James L. Nelson | Boyce (Mackhank) | 6 | 47.6K | 3.9K | Jan 1993 – Jul 2026 |
| Goehring-Krueger O-2-8365 | Coastline Exploration, Inc. | Bomba (Yegua 2ND) | 1 | 46.4K | 63.9K | Mar 1998 – Nov 2006 |
| Heinrich, Louis M. O-2-6320 | Nog Production & Operating LLC | Gowitt (Wilcox 7700) | 1 | 45.8K | 630 | Jan 1993 – Jul 2026 |
| Diebel, C. C. O-2-7225 | New Source Oil & Gas, LLC | Berclair (2200 Frio, SW) | 2 | 44K | 2.29K | Jan 1993 – Jul 2026 |