| Roberts, C.H. Gas Unit G-6-160085 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 47.2K | 2.27M | Sep 1996 – Apr 2026 |
| Shelton, A.L. Estate Gas Unit G-6-159545 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 38.4K | 2.79M | Jul 1996 – Apr 2022 |
| Hiatt, Lena R. Gas Unit G-6-158153 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 38.4K | 2.33M | Mar 1996 – Apr 2026 |
| O'Byrne Heirs Gas Unit "A" G-6-156232 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 35.4K | 2.01M | Oct 1995 – Apr 2026 |
| Joseph, George et al Gas Unit G-6-154842 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 34.6K | 2.13M | May 1995 – Apr 2026 |
| Roberts, C. H. Gas Unit G-6-164175 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 34.3K | 1.96M | Jun 1997 – Apr 2026 |
| Gladewater-Jeter G-6-297333 | Bent Wing Energy, LLC only | Glenwood (Cotton Valley) | Gregg | 1 | 33.3K | 1.79M | Dec 2023 – Apr 2026 |
| Medlin, J.W. G-6-154500 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 32K | 2.22M | May 1995 – Apr 2026 |
| O'Byrne Heirs Gas Unit "A" G-6-159982 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 31K | 1.99M | Aug 1996 – May 2017 |
| Medlin, J.W. Estate Gas Unit G-6-158094 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 30.1K | 1.98M | Feb 1996 – Dec 2019 |
| O'Byrne Heirs Gas Unit "A" G-6-159390 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 29.9K | 2.21M | May 1996 – Apr 2026 |
| Roberts, C.H. Jr. Gas Unit G-6-155523 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 29.6K | 1.56M | Jul 1995 – Apr 2026 |
| Smart, Vida Gas Unit G-6-158616 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 29K | 1.99M | Apr 1996 – Apr 2026 |
| Smart, Vida Gas Unit G-6-158990 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 28.6K | 2.08M | May 1996 – Apr 2026 |
| Dixon, William L. Gas Unit "A" G-6-159387 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 26.8K | 1.47M | Jan 1996 – Apr 2026 |
| Dixon, William L. "B" G-6-163742 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 26.7K | 2.03M | Apr 1997 – Apr 2026 |
| Nicholson, John W. Gas Unit G-6-159652 | Merit Energy Company only | Glenwood (Cotton Valley) | Gregg | 1 | 25.9K | 1.42M | Aug 1996 – Mar 2009 |
| Medlin, J.W. Estate Gas Unit G-6-156327 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 25.1K | 2.15M | Nov 1995 – Apr 2026 |
| Smart, Vida Gas Unit G-6-159159 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 24.8K | 1.61M | May 1996 – Apr 2026 |
| Dixon, William L. Gas Unit "A" G-6-162632 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 24.5K | 1.63M | Mar 1997 – Aug 2009 |
| Roberts, C.H. Gas Unit G-6-159773 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 23.9K | 1.91M | Jul 1996 – May 2015 |
| Moyers, Docia Gas Unit G-6-157482 | Merit Energy Company only | Glenwood (Cotton Valley) | Gregg | 1 | 23.8K | 2.41M | Jan 1996 – Apr 2026 |
| White, Frank Gas Unit G-6-156322 | Merit Energy Company only | Glenwood (Cotton Valley) | Gregg | 1 | 23.6K | 2.09M | Nov 1995 – Apr 2026 |
| Smart, Vida Gas Unit G-6-168805 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 22.5K | 1.57M | Apr 1998 – Apr 2026 |
| Moyers, Docia Gas Unit G-6-156045 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 22.5K | 2.17M | Sep 1995 – Apr 2026 |
| Smart, Vida Gas Unit G-6-159980 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 22.2K | 1.39M | Jul 1996 – Apr 2014 |
| Hiatt, Lena R. Gas Unit G-6-157884 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 21.4K | 1.43M | Jan 1996 – Apr 2026 |
| Shelton, A.L. Estate Gas Unit G-6-158537 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 20.8K | 1.33M | Mar 1996 – Aug 2015 |
| Rubey Estate Gas Unit G-6-160953 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 20.7K | 1.05M | Nov 1996 – Jul 2016 |
| Smart, Vida Gas Unit G-6-159258 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 20.3K | 1.17M | Jun 1996 – Apr 2026 |
| Hiatt, Lena R. Gas Unit G-6-168688 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 19.9K | 1.22M | Mar 1998 – Jul 2023 |
| Dixon, William L. Gas Unit "A" G-6-155222 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 19.9K | 1.99M | Jun 1995 – Apr 2026 |
| Free, J.W. Gas Unit G-6-159859 | R2Q Operating LLC only | Glenwood (Cotton Valley) | Upshur | 1 | 19.6K | 1.59M | Jun 1996 – Jan 2026 |
| Hiatt, Lena R. Gas Unit G-6-157342 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 19K | 1.16M | Jan 1996 – Mar 2023 |
| Edwards, J. K. Lease G-6-155915 | Cotton Valley Operations, Inc. only | Glenwood (Cotton Valley) | Upshur | 1 | 18.9K | 1.43M | Aug 1995 – Oct 2010 |
| Hiatt, Lena R. Gas Unit G-6-155010 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 18.7K | 1.18M | Jun 1995 – Feb 2009 |
| Corbin, Rosa Gas Unit G-6-158158 | Merit Energy Company only | Glenwood (Cotton Valley) | Gregg | 1 | 18.4K | 1.9M | Feb 1996 – Jan 2026 |
| Free, J.W. Gas Unit G-6-154163 | R2Q Operating LLC only | Glenwood (Cotton Valley) | Upshur | 1 | 18.2K | 1.11M | Mar 1995 – Jan 2026 |
| Walker, Isabella Lease G-6-156046 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 18K | 1.55M | Aug 1995 – Oct 2015 |
| Chevron USA Inc. Gas Unit G-6-158876 | Merit Energy Company only | Glenwood (Cotton Valley) | Gregg | 1 | 17K | 1.53M | Apr 1996 – Apr 2026 |
| Dixon, William L. Gas Unit "A" G-6-159386 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 16.3K | 1.05M | Jan 1996 – Dec 2019 |
| Bozman, J. H. Lease G-6-159044 | Merit Energy Company only | Glenwood (Cotton Valley) | Gregg | 1 | 16.2K | 1.35M | May 1996 – Apr 2026 |
| Roberts, C.H. Gas Unit G-6-170112 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 16.1K | 1.12M | May 1998 – Apr 2026 |
| South Brawley Gas Unit G-6-159543 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 16K | 835K | Jun 1996 – Jan 2013 |
| Flewellen, J. J. Estate G-6-168531 | Dallas Production Company LLC only | Glenwood (Cotton Valley) | Gregg | 1 | 15.7K | 1.04M | Apr 1998 – Dec 2010 |
| Flewellen, J. J. Estate G-6-147929 | Dallas Production Company LLC only | Glenwood (Cotton Valley) | Upshur | 1 | 14.7K | 887K | Jan 1994 – Dec 2010 |
| Nicholson, John W. Gas Unit G-6-120944 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 14.3K | 745K | Jan 1993 – Apr 2026 |
| South Brawley Gas Unit G-6-160352 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 14K | 728K | Sep 1996 – Dec 2013 |
| Medlin, J.W. Estate Gas Unit G-6-168874 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 13.8K | 1.14M | Mar 1998 – Feb 2024 |
| O'Byrne Heirs Gas Unit "A" G-6-215488 | Merit Energy Company only | Glenwood (Cotton Valley) | Upshur | 1 | 13.4K | 1.08M | Jul 2005 – Apr 2026 |