| Ferguson Prison Unit G-3-266320 | | Fort Trinidad (Glen Rose, Upper) | Madison | 1 | 284K | 800K | Jul 2011 – Aug 2014 |
| Manning G-3-273058 | E2 Operating LLC only | Fort Trinidad (Glen Rose, Upper) | Madison | 1 | 219K | 545K | Feb 2014 – Mar 2026 |
| Eastham State Prison Farm G-3-268382 | | Fort Trinidad (Glen Rose, Upper) | Houston | 1 | 146K | 425K | Nov 2012 – Aug 2014 |
| Ft.trinidad Upper Glen Rose Unit G-3-32373 | Empire Texas Operating LLC only | Fort Trinidad (Glen Rose, Upper) | Houston | 1 | 128K | 3.74M | Jan 1993 – Apr 2026 |
| Ferguson Prison Unit G-3-265289 | Sem Operating Company LLC only | Fort Trinidad (Glen Rose, Upper) | Madison | 1 | 126K | 494K | Mar 2011 – Aug 2014 |
| Barr G-3-278702 | E2 Operating LLC only | Fort Trinidad (Glen Rose, Upper) | Madison | 1 | 123K | 408K | Jun 2014 – Feb 2026 |
| Ferguson Prison Unit G-3-271685 | | Fort Trinidad (Glen Rose, Upper) | Madison | 1 | 120K | 397K | Jul 2011 – Aug 2014 |
| Henry G-3-278443 | E2 Operating LLC only | Fort Trinidad (Glen Rose, Upper) | Madison | 1 | 117K | 212K | Feb 2014 – Mar 2026 |
| Eastham State Prison Farm G-3-265861 | | Fort Trinidad (Glen Rose, Upper) | Houston | 1 | 116K | 325K | Jan 2011 – Aug 2014 |
| Ferguson Prison Unit G-3-271371 | Sem Operating Company LLC only | Fort Trinidad (Glen Rose, Upper) | Madison | 1 | 112K | 811K | Apr 2012 – Aug 2014 |
| 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 |
| Turner G-3-271286 | E2 Operating LLC only | Fort Trinidad (Glen Rose, Upper) | Madison | 1 | 105K | 202K | Mar 2013 – Mar 2026 |
| Hardy G-3-278455 | E2 Operating LLC only | Fort Trinidad (Glen Rose, Upper) | Madison | 1 | 104K | 408K | Jul 2014 – Mar 2026 |
| Eastham State Prison Farm G-3-271697 | | Fort Trinidad (Glen Rose, Upper) | Houston | 1 | 103K | 373K | Dec 2012 – Aug 2014 |
| Stiver G-3-276853 | E2 Operating LLC only | Fort Trinidad (Glen Rose, Upper) | Madison | 1 | 96.8K | 230K | Sep 2013 – Mar 2026 |
| Eastham State Prison Farm G-3-271481 | | Fort Trinidad (Glen Rose, Upper) | Houston | 1 | 81.8K | 383K | Aug 2012 – Aug 2014 |
| Smith G-3-281309 | E2 Operating LLC only | Fort Trinidad (Glen Rose, Upper) | Madison | 1 | 79.9K | 234K | Nov 2015 – Feb 2024 |
| Rader G-3-281343 | E2 Operating LLC only | Fort Trinidad (Glen Rose, Upper) | Madison | 1 | 79.9K | 310K | Oct 2015 – Jul 2023 |
| 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 |
| Brassell G-3-271284 | E2 Operating LLC only | Fort Trinidad (Glen Rose, Upper) | Madison | 1 | 68.1K | 376K | Mar 2013 – Mar 2026 |
| York G-3-271375 | Buffco Production Inc. only | Fort Trinidad (Glen Rose, Upper) | Madison | 1 | 66.8K | 224K | Apr 2013 – Dec 2021 |
| Hanley G-3-266319 | Sem Operating Company LLC only | Fort Trinidad (Glen Rose, Upper) | Houston | 1 | 61.4K | 190K | Feb 2011 – Aug 2014 |
| Hyde, Marty G-3-268337 | Sem Operating Company LLC only | Fort Trinidad (Glen Rose, Upper) | Houston | 1 | 60.2K | 240K | May 2012 – Aug 2014 |
| Chester Adams G-3-259670 | Sem Operating Company LLC only | Fort Trinidad (Glen Rose, Upper) | Houston | 1 | 57.9K | 182K | May 2010 – Aug 2014 |
| Eastham State Prison Farm G-3-274405 | Sem Operating Company LLC only | Fort Trinidad (Glen Rose, Upper) | Houston | 1 | 56.2K | 180K | Sep 2013 – Aug 2014 |
| Eastham State Prison Farm G-3-271510 | Sem Operating Company LLC only | Fort Trinidad (Glen Rose, Upper) | Houston | 1 | 56.1K | 242K | Jan 2013 – Aug 2014 |
| Greene G-3-273662 | E2 Operating LLC only | Fort Trinidad (Glen Rose, Upper) | Madison | 1 | 55K | 215K | Jan 2014 – Oct 2025 |
| Elliott G-3-265021 | | Fort Trinidad (Glen Rose, Upper) | Houston | 1 | 54.8K | 210K | Dec 2010 – Aug 2014 |
| Little G-3-262180 | Sem Operating Company LLC only | Fort Trinidad (Glen Rose, Upper) | Houston | 1 | 51.7K | 124K | Dec 2010 – Aug 2014 |
| Shelton G-3-281499 | E2 Operating LLC only | Fort Trinidad (Glen Rose, Upper) | Madison | 1 | 51.5K | 248K | Apr 2016 – Mar 2026 |
| Eastham State Prison Farm G-3-272703 | Sem Operating Company LLC only | Fort Trinidad (Glen Rose, Upper) | Houston | 1 | 49.4K | 167K | Nov 2013 – Aug 2014 |
| Jett G-3-281296 | E2 Operating LLC only | Fort Trinidad (Glen Rose, Upper) | Madison | 1 | 49.1K | 268K | Jul 2015 – Mar 2026 |
| Word G-3-278412 | E2 Operating LLC only | Fort Trinidad (Glen Rose, Upper) | Madison | 1 | 48.6K | 314K | Nov 2014 – Mar 2026 |
| Ferguson Prison Unit G-3-272052 | Sem Operating Company LLC only | Fort Trinidad (Glen Rose, Upper) | Madison | 1 | 47.6K | 1.16M | Jan 2012 – Aug 2014 |
| Ft.trinidad Upper Glen Rose Unit G-3-32367 | Empire Texas Operating LLC only | Fort Trinidad (Glen Rose, Upper) | Madison | 1 | 45K | 1.2M | May 1997 – Apr 2026 |
| Eastham State Prison Farm G-3-274150 | Sem Operating Company LLC only | Fort Trinidad (Glen Rose, Upper) | Houston | 1 | 44.8K | 969K | May 2013 – Aug 2014 |
| Eastham State Prison Farm G-3-273590 | Sem Operating Company LLC only | Fort Trinidad (Glen Rose, Upper) | Houston | 1 | 44.4K | 609K | Jun 2013 – Aug 2014 |
| Eastham State Prison Farm G-3-263513 | Sem Operating Company LLC only | Fort Trinidad (Glen Rose, Upper) | Houston | 1 | 44.1K | 173K | Jun 2010 – Aug 2014 |
| Miles Timber G-3-265036 | Sem Operating Company LLC only | Fort Trinidad (Glen Rose, Upper) | Houston | 1 | 43.1K | 286K | Dec 2011 – Aug 2014 |
| Ft.trinidad Upper Glen Rose Unit G-3-32375 | Empire Texas Operating LLC only | Fort Trinidad (Glen Rose, Upper) | Houston | 1 | 38.9K | 936K | Jan 1993 – May 2012 |
| Adams, R. C. G-3-268369 | Sem Operating Company LLC only | Fort Trinidad (Glen Rose, Upper) | Houston | 1 | 38.7K | 274K | May 2012 – Aug 2014 |
| Trichel G-3-278444 | E2 Operating LLC only | Fort Trinidad (Glen Rose, Upper) | Madison | 1 | 37.9K | 236K | Dec 2013 – Oct 2025 |
| Ft.trinidad Upper Glen Rose Unit G-3-32384 | Empire Texas Operating LLC only | Fort Trinidad (Glen Rose, Upper) | Houston | 1 | 36.9K | 778K | May 1997 – Oct 2011 |
| Eastham State Prison Farm G-3-274532 | Sem Operating Company LLC only | Fort Trinidad (Glen Rose, Upper) | Houston | 1 | 35.3K | 209K | Nov 2013 – Aug 2014 |
| Samuel Gas Unit G-3-269655 | E2 Operating LLC only | Fort Trinidad (Glen Rose, Upper) | Madison | 1 | 35.1K | 540K | May 2012 – Sep 2020 |
| Morgan G-3-282311 | E2 Operating LLC only | Fort Trinidad (Glen Rose, Upper) | Madison | 1 | 34.6K | 109K | Jun 2016 – Mar 2026 |
| Savell G-3-280182 | Reed Exploration LLC only | Fort Trinidad (Glen Rose, Upper) | Madison | 1 | 34.2K | 493K | Mar 2014 – Nov 2024 |
| Leggett G-3-281495 | E2 Operating LLC only | Fort Trinidad (Glen Rose, Upper) | Madison | 1 | 33.8K | 225K | Jan 2016 – Mar 2026 |
| Johnston G-3-281621 | E2 Operating LLC only | Fort Trinidad (Glen Rose, Upper) | Madison | 1 | 33.6K | 93.4K | Oct 2016 – Sep 2025 |