| Fort Trinidad Dexter Unit O-3-22761 | Parten Operating Inc. only | Fort Trinidad (Dexter) | Houston | 17 | 1.89M | 75.7K | Sep 1995 – Aug 2026 |
| Shelly O-3-24853 | Empire Texas Operating LLC only | Fort Trinidad, East (Buda) | Houston | 18 | 1.71M | 2.09M | Sep 2012 – Aug 2026 |
| Shaw, Mollie O-6-1833 | Rusk Energy Operating LLC only | Trinity | Houston | 25 | 873K | 8.4K | by Jan 1993 – Aug 2026 |
| Huffman, L. W. O-6-1835 | Kodiak Oil & Gas, Inc. only | Trinity | Houston | 12 | 833K | 37 | by Jan 1993 – Aug 2026 |
| Samedan Fee O-3-23132 | Rose City Resources, LLC only | Fort Trinidad, East (Buda) | Houston | 1 | 499K | 187K | Jun 1996 – Jun 2007 |
| Butler O-3-26835 | Empire Texas Operating LLC only | Fort Trinidad, East (Buda) | Houston | 3 | 448K | 599K | Dec 2014 – Jun 2026 |
| Maples O-3-25522 | Empire Texas Operating LLC only | Fort Trinidad, East (Buda) | Houston | 4 | 401K | 410K | Sep 2012 – Jan 2021 |
| Seven J Stock Farm, Inc O-3-23281 | Empire Texas Operating LLC only | Fort Trinidad, East (Buda) | Houston | 2 | 362K | 406K | Jan 1997 – Jul 2006 |
| Eastham State Prison Farm O-3-26074 | Trailblazer Energy Resources,llc only | Fort Trinidad, East (Buda) | Houston | 5 | 356K | 1M | Mar 2011 – Aug 2026 |
| Chandler O-3-26550 | Trailblazer Energy Resources,llc only | Ft. Trinidad,s.(ottos Sand) | Houston | 1 | 354K | 477K | Jun 2014 – Aug 2026 |
| Trinity State Bank O-6-1831 | Rusk Energy Operating LLC only | Trinity | Houston | 17 | 354K | 55 | by Jan 1993 – Aug 2026 |
| Farmers Oil Co. O-3-11948 | Parten Operating Inc. only | Fort Trinidad, W.(dexter) | Houston | 2 | 314K | 168K | by Jan 1993 – Aug 2026 |
| Adams, C. T. Oil Unit #2 O-3-10826 | Covenant Energy LLC only | Ft. Trinidad,s.(ottos Sand) | Houston | 2 | 286K | 31 | Jun 1993 – Jun 2024 |
| Gore O-3-27341 | Interstate Explorations LLC only | Ft. Trinidad,s.(ottos Sand) | Houston | 1 | 269K | 457K | Apr 2018 – Aug 2026 |
| Bruton, W. T., Est. O-3-7800 | Parten Operating Inc. only | Ft. Trinidad, East (Dexter) | Houston | 1 | 257K | 235K | by Jan 1993 – May 2026 |
| Seven J Stockfarm, Inc. O-3-23841 | Parten Operating Inc. only | Fort Trinidad (Georgetown Lime) | Houston | 1 | 231K | 257K | Dec 1999 – Aug 2026 |
| East Ft. Trinidad(dexter C) Unit O-3-10704 | Samedan Oil Corporation only | Ft. Trinidad, East (Dexter C) | Houston | 12 | 227K | 93.3K | by Jan 1993 – Mar 1999 |
| Shaw, Mollie -B- O-6-13645 | Rusk Energy Operating LLC only | Trinity | Houston | 11 | 163K | 16.4K | Dec 1996 – Aug 2026 |
| Etheredge O-3-25952 | Maximus Operating, Ltd. only | Fort Trinidad, East (Buda) | Houston | 1 | 162K | 107K | Nov 2011 – Mar 2025 |
| W. A. Adams Gas Unit O-3-25424 | Trailblazer Energy Resources,llc only | Fort Trinidad, East (Buda) | Houston | 1 | 151K | 284K | Dec 2008 – Dec 2024 |
| Eastham State Prison Farm G-3-268382 | | Fort Trinidad (Glen Rose, Upper) | Houston | 1 | 146K | 425K | Nov 2012 – Aug 2014 |
| Ella Jane O-3-26387 | Trailblazer Energy Resources,llc only | Fort Trinidad, East (Buda) | Houston | 2 | 133K | 316K | Aug 2013 – Aug 2026 |
| Turner Unit O-3-26407 | Empire Texas Operating LLC only | Fort Trinidad, East (Buda) | Houston | 2 | 132K | 116K | Jul 2013 – Jul 2019 |
| Adams, C. T. Oil Unit NO 1 O-3-10797 | Covenant Energy LLC only | Ft. Trinidad,s.(ottos Sand) | Houston | 1 | 131K | 339 | by Jan 1993 – Oct 2019 |
| Ft.trinidad Upper Glen Rose Unit G-3-32373 | Empire Texas Operating LLC only | Fort Trinidad (Glen Rose, Upper) | Houston | 1 | 129K | 3.8M | by Jan 1993 – Aug 2026 |
| Mollie Shaw "G" O-6-1832 | Rusk Energy Operating LLC only | Trinity | Houston | 3 | 128K | 688 | by Jan 1993 – Aug 2026 |
| Champion International D 1 O-3-24212 | Parten Operating Inc. only | Ft. Trinidad, SW. (Buda) | Houston | 1 | 127K | 177K | Jun 2002 – Sep 2014 |
| J.A. Chandler O-3-26823 | Jamex, Inc. only | Ft. Trinidad,s.(ottos Sand) | Houston | 1 | 125K | 164K | Jul 2015 – Jul 2026 |
| Eastham State Prison Farm G-3-265861 | | Fort Trinidad (Glen Rose, Upper) | Houston | 1 | 116K | 325K | Jan 2011 – Aug 2014 |
| Brown, H.D. et al Unit O-3-17601 | Parten Operating Inc. only | Ft. Trinidad, E. (Glen Rose, UP) | Houston | 1 | 114K | 297K | by Jan 1993 – Aug 2026 |
| Marty Hyde O-3-25836 | Trailblazer Energy Resources,llc only | Fort Trinidad, East (Buda) | Houston | 2 | 114K | 433K | Aug 2011 – Jan 2024 |
| Little, T. A.gas Unit G-3-137794 | Parten Operating Inc. only | Fort Trinidad (Glen Rose -D-) | Houston | 1 | 113K | 2.88M | by Jan 1993 – Jun 2026 |
| Eastham State Prison Farm G-3-272047 | Sem Operating Company LLC only | Fort Trinidad (Glen Rose, Upper) | Houston | 1 | 109K | 242K | Oct 2012 – Aug 2014 |
| William B. Harrison O-3-26599 | Rose City Resources, LLC only | Fort Trinidad (Glen Rose -D-) | Houston | 1 | 107K | 330K | Dec 2014 – Aug 2026 |
| Seven J Stock Farm Inc. O-3-12184 | Parten Operating Inc. only | FT Trinidad, E. (Edwards -A-) | Houston | 4 | 107K | 573K | by Jan 1993 – Jan 2011 |
| Eastham State Prison Farm G-3-271697 | | Fort Trinidad (Glen Rose, Upper) | Houston | 1 | 103K | 373K | Dec 2012 – Aug 2014 |
| Seven J Stock Farm O-3-7801 | Parten Operating Inc. only | Ft. Trinidad, East (Dexter) | Houston | 2 | 100K | 207K | Nov 2004 – Aug 2026 |
| Byers O-3-26221 | Sem Operating Company LLC only | Fort Trinidad, East (Buda) | Houston | 1 | 95.3K | 181K | Jan 2011 – Aug 2014 |
| Jim Bowie O-3-26706 | Rose City Resources, LLC only | Ft. Trinidad, E. (Edwards) | Houston | 1 | 94.6K | 71.8K | Dec 2014 – Aug 2026 |
| Farmers Oil Company G-3-108666 | Parten Operating Inc. only | Fort Trinidad, W. (Glen Rose,up) | Houston | 1 | 92.3K | 3.86M | by Jan 1993 – Aug 2026 |
| Bruton, W.T. Estate O-3-17170 | Parten Operating Inc. only | Fort Trinidad (Dexter) | Houston | 8 | 90.9K | 58.2K | by Jan 1993 – Aug 1995 |
| Dorrell, Esther G-3-137820 | Parten Operating Inc. only | Fort Trinidad, W. (Glen Rose,up) | Houston | 1 | 90.9K | 3.84M | by Jan 1993 – Aug 2026 |
| Eastham State Prison Farm G-3-271481 | | Fort Trinidad (Glen Rose, Upper) | Houston | 1 | 81.8K | 383K | Aug 2012 – Aug 2014 |
| Espf "B" O-3-25936 | Trailblazer Energy Resources,llc only | Ft. Trinidad, S. (Buda) | Houston | 1 | 81.3K | 157K | Oct 2011 – Oct 2021 |
| Morris, Thelma G-3-125472 | Parten Operating Inc. only | Ft. Trinidad, E. (Glen Rose D) | Houston | 1 | 80.9K | 4.69M | by Jan 1993 – Aug 2026 |
| Seven J Stock Farm, Inc. O-3-26820 | Parten Operating Inc. only | Fort Trinidad, W.(dexter) | Houston | 1 | 80.6K | 55K | Mar 2015 – Aug 2026 |
| Von Rosenberg G-3-257537 | Trailblazer Energy Resources,llc only | Fort Trinidad (Glen Rose, Upper) | Houston | 1 | 79.2K | 176K | Mar 2010 – Aug 2014 |
| Eastham State Prison Farm G-3-273056 | Sem Operating Company LLC only | Fort Trinidad (Glen Rose, Upper) | Houston | 1 | 73.5K | 382K | Feb 2013 – Aug 2014 |
| Shelly-State Unit O-3-26490 | Empire Texas Operating LLC only | Fort Trinidad, East (Buda) | Houston | 2 | 65.7K | 159K | Jul 2014 – Jul 2019 |
| Chandler-Williams O-3-15983 | Maximus Operating, Ltd. only | Ft. Trinidad,s.(ottos Sand) | Houston | 1 | 64.4K | 9.69K | by Jan 1993 – Jan 2022 |