| Patterson-Herrin Gas Unit G-6-237091 | Mmgl East Texas III, LLC only | Blocker (Cotton Valley) | Harrison | 1 | 3.15K | 1.29M | Apr 2008 – Apr 2026 |
| Justice Gas Unit G-6-230227 | Soldier Creek Energy, LLC only | Blocker (Cotton Valley) | Harrison | 1 | 3.12K | 525K | Mar 2007 – Apr 2026 |
| George, T.W. Gas Unit "A" G-6-141721 | Mmgl East Texas III, LLC only | Blocker (Cotton Valley) | Harrison | 1 | 3.12K | 1.17M | Jan 1993 – Apr 2026 |
| Deford-White Oil Unit O-10-44486 | Citation Oil & Gas Corp. only | Block a-34 (Glorieta, Lower) | Andrews | 1 | 3.1K | 0 | Sep 2013 – Nov 2013 |
| Morus O-10-54630 | Ring Energy, Inc. only | Block a-34 (San Andres) | Gaines | 1 | 3.1K | 989 | May 2018 – Dec 2018 |
| Smith, Ashbel Block 4. O-3-10097 | Foothills Texas, Inc. only | Goose Creek | Harris | 1 | 3.1K | 20 | Jan 1993 – Apr 1998 |
| Brune-Burnett -C- Gas Unit G-6-233710 | Sponte Operating, Inc. only | Blocker (Cotton Valley) | Harrison | 1 | 3.09K | 757K | Oct 2007 – Apr 2026 |
| Resch, Kathleen M. G-6-180599 | Mmgl East Texas III, LLC only | Blocker (Cotton Valley) | Harrison | 1 | 3.08K | 878K | Nov 2000 – Feb 2020 |
| Mobley Gas Unit G-6-188168 | Valence Operating Company only | Blocker (Cotton Valley) | Harrison | 1 | 3.07K | 595K | Mar 2002 – Mar 2009 |
| Vann, Aurelia Gas Unit G-6-141703 | Mmgl East Texas III, LLC only | Blocker (Cotton Valley) | Harrison | 1 | 3.07K | 666K | Jan 1993 – Apr 2026 |
| Lynch, David Gas Unit G-6-221070 | Brammer Engineering, Inc. only | Blocker (Cotton Valley) | Harrison | 1 | 3.07K | 743K | Apr 2006 – Apr 2026 |
| Hatchett, N. P. G-2-61608 | Hedrick Production Inc. only | Clayton (Block 86 SD) | Live Oak | 1 | 3.06K | 1.29M | Jan 1993 – Mar 2026 |
| Matthews, William Gas Unit G-6-83238 | BP America Production Company only | Blocker (Cotton Valley) | Harrison | 1 | 3.06K | 392K | Jan 1993 – Jul 2011 |
| Blocker Heirs G-6-235464 | Enpower Resources Inc. only | Carthage, North (Cotton Valley) | Harrison | 1 | 3.05K | 331K | Mar 2008 – Apr 2026 |
| Blocker-Ware G-6-179589 | Enpower Resources Inc. only | Bethany (Pettit) | Harrison | 1 | 3.05K | 544K | Jun 2000 – Mar 2020 |
| Blocker Heirs G-6-237042 | Enpower Resources Inc. only | Carthage, North (Cotton Valley) | Harrison | 1 | 3.04K | 385K | Mar 2008 – Apr 2026 |
| Willis W O-10-38430 | Reverence Operating LLC only | Block a-50 (Ellenburger) | Andrews | 1 | 3.04K | 237 | Dec 2007 – Jul 2011 |
| Dinkle G-6-227288 | Sabine Energy Inc. only | Blocker (Cotton Valley) | Harrison | 1 | 3.03K | 803K | Mar 2007 – Apr 2026 |
| Dudeck Heirs Gas Unit G-6-142159 | Mmgl East Texas III, LLC only | Blocker (Cotton Valley) | Harrison | 1 | 3.02K | 667K | Jan 1993 – Nov 2021 |
| Jossie Taylor Becker Gas Unit G-6-255970 | Brammer Engineering, Inc. only | Blocker (Cotton Valley) | Harrison | 1 | 3.02K | 400K | Apr 2010 – Jan 2026 |
| Crews & Mast Arco Unit O-10-25856 | Bald Eagle Operating Inc. only | Block a-34 (Yates) | Andrews | 1 | 3.01K | 2.47K | Feb 1994 – Dec 2025 |
| Dinkle G-6-223587 | Sabine Energy Inc. only | Blocker (Cotton Valley) | Harrison | 1 | 3.01K | 614K | Sep 2006 – Apr 2026 |
| East Side Block Unit G-4-91482 | Wallis Energy, Inc. only | Agua Dulce (Vicksburg Consl.) | Nueces | 1 | 3K | 160K | Jan 1993 – Apr 2026 |
| Amis Gas Unit G-6-143822 | Mmgl East Texas III, LLC only | Blocker (Cotton Valley) | Harrison | 1 | 2.99K | 727K | Jan 1993 – Oct 2019 |
| Dinkle G-6-203949 | Sabine Oil & Gas Corporation only | Blocker (Cotton Valley) | Harrison | 1 | 2.98K | 502K | Jul 2004 – Oct 2017 |
| Coats Gas Unit G-6-142861 | Mmgl East Texas III, LLC only | Blocker (Cotton Valley) | Harrison | 1 | 2.98K | 872K | Jan 1993 – Dec 2022 |
| University -Atp O-10-22128 | Phillips Petroleum Company only | Block 11 (Wichita, LO) | Andrews | 4 | 2.98K | 11.7K | Jan 1993 – Jan 1994 |
| University 6 G-9-170374 | Rim Operating, Inc. only | Block 38 (Ellenburger) | Crockett | 1 | 2.97K | 33K | Oct 1998 – Jun 2003 |
| Finklea Gas Unit G-6-221987 | TGNR East Texas II LLC only | Blocker (Cotton Valley) | Harrison | 1 | 2.94K | 980K | Jun 2006 – Jul 2024 |
| Blocker Ware G-6-235876 | Enpower Resources Inc. only | Carthage, North (Cotton Valley) | Harrison | 1 | 2.93K | 397K | Dec 2007 – Apr 2026 |
| Patterson-Herrin Gas Unit G-6-143627 | Mmgl East Texas III, LLC only | Blocker (Cotton Valley) | Harrison | 1 | 2.93K | 1.4M | Jan 1993 – Dec 2013 |
| University -3031- O-10-30047 | 20TH Century Pipe & Equip.co.inc only | Block 31 (Devonian) | Crane | 1 | 2.91K | 653 | Jan 1993 – Nov 1995 |
| Patterson-Herrin Gas Unit G-6-141497 | Mmgl East Texas III, LLC only | Blocker (Cotton Valley) | Harrison | 1 | 2.86K | 1.18M | Jan 1993 – Apr 2026 |
| Pepper Gas Unit 1 G-6-236375 | Fortune Resources LLC only | Blocker (Cotton Valley) | Harrison | 1 | 2.86K | 533K | Aug 2007 – Mar 2026 |
| Runnels, Mack V. Gas Unit G-6-234518 | Mmgl East Texas III, LLC only | Blocker (Cotton Valley) | Harrison | 1 | 2.85K | 909K | Dec 2007 – Apr 2026 |
| Runnels, Mack V. Gas Unit G-6-141263 | Mmgl East Texas III, LLC only | Blocker (Cotton Valley) | Harrison | 1 | 2.84K | 1.08M | Jan 1993 – Aug 2021 |
| Block 31 Unit G-10-279560 | Hilcorp Energy Company only | Block 31 (Devonian) | Crane | 1 | 2.84K | 734K | Oct 2015 – Apr 2026 |
| Brewster Gas Unit G-6-82660 | Mmgl East Texas III, LLC only | Blocker (Cotton Valley) | Harrison | 1 | 2.81K | 522K | Jan 1993 – Apr 2019 |
| McNeill "C" O-10-36584 | Western Reserves Oil Company Inc only | Block a-28 (San Andres) | Gaines | 1 | 2.81K | 3.34K | Mar 2001 – Jun 2009 |
| Blocker Heirs G-6-231285 | Enpower Resources Inc. only | Carthage, North (Cotton Valley) | Harrison | 1 | 2.81K | 410K | May 2007 – Apr 2026 |
| Bartlett-Bailey Gas Unit #1 G-6-84390 | Breitburn Operating L.P. only | Blocker (Cotton Valley) | Harrison | 1 | 2.77K | 508K | Jan 1993 – Sep 2015 |
| S/L 59455, High Island 24L G-3-138911 | Jefferson Block 24 Oil & Gas LLC only | High Is. Blk. 24L (FB-C, HC) | High IS-LB | 1 | 2.76K | 4.06M | Jan 1993 – Jun 2016 |
| Block 86 Unit G-2-128179 | Sheridan Energy,inc. only | Clayton (Wilcox 7360) | Live Oak | 1 | 2.76K | 156K | Jan 1993 – Jan 1999 |
| Furrh Gas Unit G-6-233172 | Fortune Resources LLC only | Blocker (Cotton Valley) | Harrison | 1 | 2.75K | 523K | Oct 2007 – Mar 2026 |
| State Tract 485-L G-3-144789 | Torch Operating Company only | Matagorda Island Block 485-L (B) | Matgrda IS-LB | 1 | 2.74K | 491K | Jan 1993 – Dec 1994 |
| Block 31 Unit G-10-258201 | Hilcorp Energy Company only | Block 31 (Devonian) | Crane | 1 | 2.74K | 884K | Nov 2010 – Apr 2026 |
| Brune-Burnett Gas Unit "B" G-6-85226 | Sponte Operating, Inc. only | Blocker (Cotton Valley) | Harrison | 1 | 2.74K | 372K | Jan 1993 – Jun 2014 |
| State Tract 335-L N/2 NW/4 G-3-152615 | Fairways Spec. Sales & Serv Inc only | Brazos Block 335-L (C-54 Mass.) | Brazos-LB | 1 | 2.73K | 2.27M | Sep 1994 – Jun 1998 |
| Finklea G-6-105311 | TGNR East Texas II LLC only | Blocker (Cotton Valley) | Harrison | 1 | 2.72K | 176K | Jan 1993 – Jul 2010 |
| Block 85 Unit G-2-61529 | Sheridan Energy,inc. only | Clayton (Wilcox 7360) | Live Oak | 1 | 2.72K | 134K | Jan 1993 – Jul 1998 |