| Loffer, Sallie O-6-10212 | Linden, East ( Cotton Valley) | Cass | 1 | 249K | 394K | Jan 1993 – Apr 2026 |
| Williams, Joseph G. O-10-28664 | Yarbrough & Allen (Wolfcamp) | Ector | 2 | 197K | 40.3K | Jan 1993 – Apr 2026 |
| Lemmon,l. O-6-5899 | Linden, East ( Cotton Valley) | Cass | 1 | 173K | 92.1K | Jan 1993 – Apr 2026 |
| McCray, Will O-6-10446 | Linden, East ( Cotton Valley) | Cass | 2 | 159K | 172K | Jan 1993 – Apr 2026 |
| Bell, William, Jr O-6-10302 | Linden, East ( Cotton Valley) | Cass | 4 | 131K | 70K | Jan 1993 – Apr 2026 |
| McBrayer, J. R. O-6-10867 | Linden, East ( Cotton Valley) | Cass | 1 | 118K | 143K | Jan 1993 – Apr 2026 |
| Hooper, E. S. O-6-4818 | Linden, East ( Cotton Valley) | Cass | 2 | 112K | 128K | Jan 1993 – Apr 2026 |
| Allday Supply Company O-6-5973 | Linden, East ( Cotton Valley) | Cass | 2 | 106K | 80.9K | Jan 1993 – Apr 2026 |
| Cass County Iron Company O-6-11877 | Iron Lake | Cass | 2 | 91.9K | 1.3K | Jan 1993 – Apr 2026 |
| Shelton, C. C. O-6-15559 | Linden, East ( Cotton Valley) | Cass | 2 | 86.8K | 103K | May 2017 – Apr 2026 |
| Chew, W. D. O-6-5256 | Excelsior (Pettit -C-) | Marion | 1 | 86.1K | 85.1K | Feb 1993 – Apr 2026 |
| Grogan Minerals O-6-15041 | Linden, East ( Cotton Valley) | Cass | 1 | 79.8K | 0 | Feb 2011 – Apr 2026 |
| Cass County Iron Co. O-6-15112 | Iron Lake | Cass | 4 | 76.4K | 0 | Oct 2011 – Apr 2026 |
| Morse Unit O-6-15195 | Linden, East ( Cotton Valley) | Cass | 1 | 72.4K | 72.5K | Jul 2012 – Apr 2026 |
| Shelton, W. L. O-6-10104 | Linden, East ( Cotton Valley) | Cass | 2 | 70.4K | 16.2K | Jan 1993 – Apr 2026 |
| Corbett O-6-11756 | Linden, East ( Cotton Valley) | Cass | 3 | 61.7K | 94.4K | Jan 1993 – Apr 2026 |
| Bobbitt-Griffith Etal O-6-12043 | Iron Lake | Cass | 1 | 43.1K | 312 | Jan 1993 – Apr 2026 |
| Methodist Home Foundation Unit O-6-5621 | Linden, East ( Cotton Valley) | Cass | 1 | 38.1K | 21 | Jan 1993 – Apr 2026 |
| Cass County Iron Company "A" O-6-11062 | Linden, East ( Cotton Valley) | Cass | 1 | 31.8K | 38.6K | Jan 1993 – Apr 2026 |
| Sunninghill O-6-15063 | Linden, East ( Cotton Valley) | Cass | 1 | 23.5K | 0 | Aug 2011 – Apr 2026 |
| Robinson O-6-14892 | Rodessa (Pettit Lime) | Cass | 1 | 22.2K | 54.9K | Mar 2009 – Apr 2026 |
| Grogan-Phillips O-6-15118 | Linden, East ( Cotton Valley) | Cass | 1 | 16K | 0 | May 2012 – Apr 2026 |
| Bell, William, Jr Unit O-6-15769 | Linden, East ( Cotton Valley) | Cass | 1 | 15.1K | 8.62K | Dec 2019 – Apr 2026 |
| Haggard O-6-15226 | Linden, East ( Cotton Valley) | Cass | 1 | 7.94K | 0 | Apr 2013 – Apr 2026 |
| Nichols O-6-15348 | Rodessa (Hill 5800) | Cass | 1 | 10.3K | 378K | Nov 2010 – Sep 2024 |
| Simmons Oil Unit O-6-13867 | Linden, East ( Cotton Valley) | Cass | 1 | 29.3K | 184K | Sep 1998 – Aug 2024 |
| East Linden Unit O-6-10006 | Linden, East ( Cotton Valley) | Cass | 1 | 23K | 11.8K | Jan 1993 – Feb 2024 |
| Shelton O-6-12982 | Rodessa, NW. (Dees, Upper) | Cass | 1 | 58K | 154K | Jan 1993 – Nov 2023 |
| Stallcup O-6-1476 | Rodessa (Dees Young) | Cass | 1 | 852 | 1.69K | Nov 1999 – Nov 2020 |
| Preston O-6-14927 | Rodessa (Pettit Lime) | Cass | 2 | 19.2K | 21.3K | Jun 2009 – Oct 2018 |
| Shelton, C. C. Estate O-6-5915 | Linden, East ( Cotton Valley) | Cass | 1 | 58.2K | 81.8K | Jan 1993 – Jun 2018 |
| Corbett, J. M. "A" O-6-4821 | Linden, East ( Cotton Valley) | Cass | 1 | 16.9K | 21.8K | Jan 1993 – Apr 2016 |
| M. Lancaster Unit O-6-5577 | Linden, East ( Cotton Valley) | Cass | 1 | 59.9K | 2.78K | Jan 1993 – Nov 2014 |
| Brown, O. E. O-6-5944 | Linden, East ( Cotton Valley) | Cass | 1 | 52.2K | 264K | Jan 1993 – Jul 2014 |
| Howard Carney Unit O-6-10163 | Linden, East ( Cotton Valley) | Cass | 1 | 45.5K | 20 | Jan 1993 – Jan 2013 |
| Corbett, J. M. "B" O-6-10568 | Linden, East ( Cotton Valley) | Cass | 1 | 58.1K | 82.6K | Jan 1993 – Apr 2012 |
| Nichols O-6-14800 | Rodessa (Pettit Lime) | Cass | 1 | 13.1K | 13.2K | Jun 2008 – Dec 2010 |
| Bade -C- O-10-9218 | Parochial-Bade (Clear Fork) | Sterling | 1 | 15.4K | 12 | Jan 1993 – Aug 2008 |
| Nichols O-6-14655 | Walker (Travis Peak) | Cass | 1 | 3.41K | 4.68K | Feb 2007 – May 2008 |
| Bade -B- O-10-34663 | Parochial-Bade (San Andres) | Sterling | 2 | 5.68K | 0 | Jul 1995 – Jun 1996 |
| Stiles, W. P., Estate O-6-4989 | Excelsior (Pettit -C-) | Marion | 1 | 0 | 0 | — |
| Robinson O-6-15542 | Rodessa (Dees Young) | Cass | 1 | 0 | 0 | — |
| Corbettt O-6-15540 | Linden, East ( Cotton Valley) | — | 0 | 0 | 0 | — |
| Williams, Joseph G. O-10-29933 | Yarbrough & Allen (Wolfcamp) | Ector | 1 | 0 | 0 | — |
| Terry Estate O-6-11177 | Rodessa (Pettit 6320) | Cass | 1 | 0 | 0 | — |