| McBrayer, J. R. O-6-10867 | Stetson Petroleum Corp. only | Linden, East ( Cotton Valley) | Cass | 1 | 119K | 143K | by Jan 1993 – Jul 2026 |
| Bedgood Estate G-6-118211 | Southwest Operating, Inc.-Tyler only | McLeod, North (Smackover) | Cass | 1 | 119K | 4.11M | by Jan 1993 – Oct 2018 |
| Houston O-6-15903 | Rose City Resources, LLC only | Hidden Rock (Cotton Valley Lime) | Cass | 1 | 118K | 14.2K | Feb 2022 – Aug 2026 |
| Duncan O-6-15909 | Rose City Resources, LLC only | Hidden Rock (Cotton Valley Lime) | Cass | 1 | 118K | 46.7K | Dec 2021 – Aug 2026 |
| Hosey et Al O-6-12484 | Buffco Production Inc. only | Hosey-Driskell (Rodessa) | Cass | 2 | 117K | 57.9K | by Jan 1993 – Feb 2022 |
| Hooper, E. S. O-6-4818 | Stetson Petroleum Corp. only | Linden, East ( Cotton Valley) | Cass | 2 | 113K | 128K | by Jan 1993 – Jul 2026 |
| Simpson "D" O-6-10933 | Buffco Production Inc. only | Avinger (Pettit) | Cass | 3 | 112K | 27.1K | by Jan 1993 – May 2016 |
| Allday Supply Company O-6-5973 | Stetson Petroleum Corp. only | Linden, East ( Cotton Valley) | Cass | 2 | 107K | 80.9K | by Jan 1993 – Jul 2026 |
| Rives O-6-11030 | Samedan Oil Corporation only | Rodessa, NW. (Dees, Upper) | Cass | 3 | 106K | 145K | by Jan 1993 – Jun 1999 |
| Hays-Glover (AW) O-6-16091 | Barrow-Shaver Resources Co. only | Hidden Rock (Cotton Valley Lime) | Cass | 1 | 105K | 79.6K | Sep 2024 – Aug 2026 |
| Williams, G. C. O-6-13096 | Stroud Petroleum, Inc. only | Rodessa (Hill) | Cass | 1 | 105K | 83.2K | by Jan 1993 – Aug 2026 |
| Arkla-Blackstone O-6-15277 | Stroud Petroleum, Inc. only | McLeod, North (CV) | Cass | 1 | 105K | 647K | Nov 2013 – Aug 2026 |
| Poole O-6-15739 | Rose City Resources, LLC only | Linden, East ( Cotton Valley) | Cass | 1 | 104K | 829 | Jul 2019 – Aug 2026 |
| Harris O-6-15844 | Rose City Resources, LLC only | Hidden Rock (Cotton Valley Lime) | Cass | 1 | 103K | 0 | Apr 2021 – Aug 2026 |
| Price, Lillie J. G-6-123148 | Stroud Petroleum, Inc. only | McLeod, North (Smackover) | Cass | 1 | 102K | 5.24M | by Jan 1993 – Dec 2025 |
| Cci O-6-16028 | Rose City Resources, LLC only | Hidden Rock (Cotton Valley Lime) | Cass | 1 | 100K | 41.6K | Oct 2023 – Aug 2026 |
| Marsh O-6-16158 | Rose City Resources, LLC only | Hidden Rock (Cotton Valley Lime) | Cass | 1 | 99.9K | 35.1K | Feb 2025 – Aug 2026 |
| Nelson O-6-16153 | Rose City Resources, LLC only | Hidden Rock (Cotton Valley Lime) | Cass | 1 | 97.6K | 23.9K | Feb 2025 – Aug 2026 |
| Cobb O-6-12445 | Goldco Operating LLC only | Rodessa (Dees Young) | Cass | 2 | 96.5K | 23.4K | by Jan 1993 – Dec 2007 |
| Charlotte O-6-16112 | Rose City Resources, LLC only | Hidden Rock (Cotton Valley Lime) | Cass | 1 | 95.6K | 43.3K | Nov 2024 – Aug 2026 |
| Frost Unit O-6-14997 | Sulphur River Exploration, Inc. only | Frost (Smackover) | Cass | 1 | 93.2K | 56.2K | Nov 2010 – Jul 2014 |
| Cass County Iron Company O-6-11877 | Stetson Petroleum Corp. only | Iron Lake | Cass | 2 | 92K | 1.3K | by Jan 1993 – Jul 2026 |
| Whatley, Elmer O-6-12768 | Cass Energy LLC only | Haynes (Mitchell) | Cass | 2 | 90.2K | 21 | by Jan 1993 – Aug 2026 |
| Diamond O-6-16105 | Rose City Resources, LLC only | Hidden Rock (Cotton Valley Lime) | Cass | 1 | 89.8K | 1.74K | Mar 2024 – Aug 2026 |
| Golding O-6-16096 | Rose City Resources, LLC only | Hidden Rock (Cotton Valley Lime) | Cass | 1 | 88.4K | 73.6K | Aug 2024 – Aug 2026 |
| Shelton, C. C. O-6-15559 | Stetson Petroleum Corp. only | Linden, East ( Cotton Valley) | Cass | 2 | 88.3K | 103K | May 2017 – Jul 2026 |
| Glover O-6-15875 | Rose City Resources, LLC only | Hidden Rock (Cotton Valley Lime) | Cass | 1 | 85.1K | 9.56K | Feb 2022 – Aug 2026 |
| Price O-6-10891 | Samedan Oil Corporation only | Rodessa, NW. (Dees, Upper) | Cass | 3 | 84.9K | 176K | by Jan 1993 – Jun 1999 |
| Templeton-Goodson (AW) O-6-15998 | Barrow-Shaver Resources Co. only | Hidden Rock (Cotton Valley Lime) | Cass | 1 | 84.6K | 257K | Aug 2023 – Aug 2026 |
| Hill O-6-15771 | Rose City Resources, LLC only | Hidden Rock (Cotton Valley Lime) | Cass | 1 | 83.6K | 0 | Dec 2019 – Aug 2026 |
| Bemis Estate O-6-11159 | Samedan Oil Corporation only | Rodessa, NW. (Dees, Upper) | Cass | 4 | 82.1K | 112K | by Jan 1993 – Jun 1999 |
| Boon O-6-15864 | Rose City Resources, LLC only | Hidden Rock (Cotton Valley Lime) | Cass | 1 | 81.7K | 6.73K | Dec 2021 – Aug 2026 |
| Grogan Minerals O-6-15041 | Stetson Petroleum Corp. only | Linden, East ( Cotton Valley) | Cass | 1 | 80.6K | 0 | Feb 2011 – Jul 2026 |
| Gina O-6-15912 | Rose City Resources, LLC only | Hidden Rock (Cotton Valley Lime) | Cass | 1 | 79.9K | 11.2K | Jun 2022 – Aug 2026 |
| Bailey O-6-15866 | Rose City Resources, LLC only | Hidden Rock (Cotton Valley Lime) | Cass | 1 | 79.8K | 3.88K | Nov 2021 – Aug 2026 |
| Parker O-6-14615 | Magnolia Production Co only | Rodessa (Hill) | Cass | 1 | 79K | 0 | Dec 2006 – Aug 2026 |
| Kessler O-6-15861 | Rose City Resources, LLC only | Hidden Rock (Cotton Valley Lime) | Cass | 1 | 77.8K | 0 | Oct 2021 – Jul 2026 |
| Downs O-6-15714 | Barrow-Shaver Resources Co. only | Hidden Rock (Cotton Valley Lime) | Cass | 1 | 77.2K | 127K | Jan 2020 – Aug 2026 |
| Kerr O-6-15905 | Barrow-Shaver Resources Co. only | Hidden Rock (Cotton Valley Lime) | Cass | 1 | 77K | 106K | Apr 2022 – Aug 2026 |
| Manning-Kessler (AW) O-6-15922 | Barrow-Shaver Resources Co. only | Hidden Rock (Cotton Valley Lime) | Cass | 1 | 76.9K | 75K | Sep 2022 – Aug 2026 |
| Cass County Iron Co. O-6-15112 | Stetson Petroleum Corp. only | Iron Lake | Cass | 4 | 76.6K | 0 | Oct 2011 – Jul 2026 |
| Cash, Russell N. O-6-2147 | Stroud Petroleum, Inc. only | Rodessa (Hill) | Cass | 2 | 76.6K | 21 | by Jan 1993 – Aug 2026 |
| Jeffery O-6-11889 | Samedan Oil Corporation only | Rodessa, NW. (Dees, Upper) | Cass | 2 | 76.3K | 125K | by Jan 1993 – Jun 1999 |
| Linden O-6-16116 | Rose City Resources, LLC only | Hidden Rock (Cotton Valley Lime) | Cass | 1 | 76K | 24.1K | Dec 2024 – Aug 2026 |
| Harper Unit O-6-11431 | Samedan Oil Corporation only | Rodessa, NW. (Dees, Upper) | Cass | 2 | 74.4K | 149K | by Jan 1993 – Jun 1999 |
| Morse Unit O-6-15195 | Stetson Petroleum Corp. only | Linden, East ( Cotton Valley) | Cass | 1 | 73.8K | 72.5K | Jul 2012 – Jul 2026 |
| Methodist Home O-6-11607 | Samedan Oil Corporation only | Rodessa, NW. (Dees, Upper) | Cass | 2 | 73.6K | 123K | by Jan 1993 – Jun 1999 |
| Lemoine O-6-15970 | Rose City Resources, LLC only | Hidden Rock (Cotton Valley Lime) | Cass | 1 | 72.9K | 0 | Jun 2023 – Aug 2026 |
| Watson O-6-15607 | Barrow-Shaver Resources Co. only | Linden, East ( Cotton Valley) | Cass | 1 | 72.8K | 35.6K | Aug 2017 – Dec 2019 |
| Smith, T.R. "B" O-6-10843 | Samedan Oil Corporation only | Rodessa, NW. (Dees, Upper) | Cass | 2 | 71.5K | 145K | by Jan 1993 – Jun 1999 |