| Briggs-Moreland GU O-6-13618 | XTO Energy Inc. only | Briggs (Upper Travis Peak) | Panola | 1 | 42.6K | 519K | Nov 1996 – Jul 2009 |
| Cameron Unit 3 O-6-15519 | R. Lacy Services, Ltd. only | Briggs (Upper Travis Peak) | Panola | 1 | 39.9K | 175K | Oct 2016 – Apr 2026 |
| J.W. Cooke Unit 1 O-6-15275 | R. Lacy Services, Ltd. only | Briggs (Upper Travis Peak) | Panola | 1 | 35.9K | 248K | Sep 2013 – Apr 2021 |
| Neal, Sallie J. "a" Unit G-6-170613 | Lacy Operations, Ltd. only | Briggs (Upper Travis Peak) | Panola | 1 | 13.8K | 1.41M | Sep 1998 – Feb 2004 |
| Dodd, Ruby Unit G-6-267807 | R. Lacy Services, Ltd. only | Briggs (Upper Travis Peak) | Panola | 1 | 12.6K | 594K | Jan 2013 – Jul 2019 |
| Harold Wilson O-6-15534 | R. Lacy Services, Ltd. only | Briggs (Upper Travis Peak) | Panola | 1 | 12.4K | 26.6K | Jan 2017 – Aug 2023 |
| Brown Unit 1 G-6-135581 | R. Lacy Services, Ltd. only | Briggs (Upper Travis Peak) | Panola | 1 | 11.2K | 2.16M | Jan 1993 – Sep 2009 |
| Burnett Unit 9 G-6-246986 | R. Lacy Services, Ltd. only | Briggs (Upper Travis Peak) | Panola | 1 | 7.17K | 1.46M | Jan 2009 – Apr 2026 |
| Burnett Unit 2 G-6-149806 | R. Lacy Services, Ltd. only | Briggs (Upper Travis Peak) | Panola | 1 | 4.32K | 450K | May 1994 – Apr 2008 |
| Burnett Unit 9 G-6-140510 | R. Lacy Services, Ltd. only | Briggs (Upper Travis Peak) | Panola | 1 | 4.23K | 1.46M | Jan 1993 – Mar 2016 |
| Brown Unit 1 G-6-137813 | R. Lacy Services, Ltd. only | Briggs (Upper Travis Peak) | Panola | 1 | 3.83K | 1.28M | Jan 1993 – Apr 2026 |
| Brown Unit 1 G-6-143434 | R. Lacy Services, Ltd. only | Briggs (Upper Travis Peak) | Panola | 1 | 3.56K | 1.4M | Jan 1993 – Jan 2026 |
| Burnett Unit 1 G-6-137411 | R. Lacy Services, Ltd. only | Briggs (Upper Travis Peak) | Panola | 1 | 3.4K | 2.38M | Jan 1993 – Oct 2021 |
| Burnett Unit 7 G-6-285702 | R. Lacy Services, Ltd. only | Briggs (Upper Travis Peak) | Panola | 1 | 3.36K | 109K | Jul 2018 – Nov 2021 |
| Burnett Unit 2 G-6-141698 | R. Lacy Services, Ltd. only | Briggs (Upper Travis Peak) | Panola | 1 | 3.29K | 1.13M | Jan 1993 – May 2011 |
| McGee, Scott R. Unit G-6-106017 | XTO Energy Inc. only | Briggs (Upper Travis Peak) | Panola | 1 | 3.19K | 1.33M | Jan 1993 – Apr 2026 |
| Brown Unit 1 G-6-143833 | R. Lacy Services, Ltd. only | Briggs (Upper Travis Peak) | Panola | 1 | 3.17K | 1.28M | Jan 1993 – Apr 2026 |
| Mullins G-6-149663 | Par Minerals Corporation only | Briggs (Upper Travis Peak) | Panola | 1 | 3.13K | 14.6K | Mar 1994 – Oct 1994 |
| Cameron Unit 1 G-6-150007 | R. Lacy Services, Ltd. only | Briggs (Upper Travis Peak) | Panola | 1 | 2.75K | 443K | May 1994 – Aug 2005 |
| Hogg, Allie Marie "AS" G-6-161884 | XTO Energy Inc. only | Briggs (Upper Travis Peak) | Panola | 1 | 2.34K | 1.12M | Dec 1996 – Apr 2026 |
| Burnett Unit 10 G-6-143489 | R. Lacy Services, Ltd. only | Briggs (Upper Travis Peak) | Panola | 1 | 2.1K | 480K | Jan 1993 – Nov 2002 |
| Burnett Unit 9 G-6-244163 | R. Lacy Services, Ltd. only | Briggs (Upper Travis Peak) | Panola | 1 | 1.86K | 445K | Oct 2008 – May 2025 |
| Burnett Unit 7 G-6-164307 | Lacy Operations, Ltd. only | Briggs (Upper Travis Peak) | Panola | 1 | 1.82K | 89.9K | Jul 1997 – Jul 2002 |
| Cameron Unit 1 G-6-164430 | Lacy Operations, Ltd. only | Briggs (Upper Travis Peak) | Panola | 1 | 1.66K | 429K | Jul 1997 – Jul 2003 |
| Boise Southern et Al G-6-160456 | SM Energy Company only | Briggs (Upper Travis Peak) | Panola | 1 | 1.51K | 194K | Sep 1996 – Jul 2011 |
| Burnett Unit 10 G-6-232231 | Lacy Operations, Ltd. only | Briggs (Upper Travis Peak) | Panola | 1 | 1.36K | 844K | Jan 1993 – Sep 2007 |
| Dodd, Ruby Unit O-6-15700 | R. Lacy Services, Ltd. only | Briggs (Upper Travis Peak) | Panola | 1 | 1.19K | 1.03K | Aug 2019 – May 2022 |
| Burnett Unit 7 G-6-160663 | R. Lacy Services, Ltd. only | Briggs (Upper Travis Peak) | Panola | 1 | 1.17K | 1.48M | Oct 1996 – Aug 2018 |
| Brown Unit 1 G-6-139482 | Lacy Operations, Ltd. only | Briggs (Upper Travis Peak) | Panola | 1 | 1.04K | 278K | Jan 1993 – Oct 2005 |
| Burnett Unit 7 G-6-171376 | R. Lacy Services, Ltd. only | Briggs (Upper Travis Peak) | Panola | 1 | 574 | 464K | Nov 1998 – Feb 2013 |
| Hodge, F. L. O-6-13822 | Hunt Petroleum Corporation only | Briggs (Upper Travis Peak) | Panola | 1 | 323 | 31.9K | Mar 1998 – Aug 1998 |
| Hodge, F. L. G-6-169860 | XTO Energy Inc. only | Briggs (Upper Travis Peak) | Panola | 1 | 318 | 670K | Aug 1998 – Nov 2010 |
| Liston, W. L. G-6-167757 | XTO Energy Inc. only | Briggs (Upper Travis Peak) | Panola | 1 | 256 | 437K | Feb 1998 – Feb 2024 |
| Briggs, W.F. G-6-132204 | Bowles Energy, Inc. only | Briggs (Upper Travis Peak) | Panola | 1 | 251 | 339K | Jan 1993 – Jun 2012 |
| Briggs-Moreland GU G-6-252127 | XTO Energy Inc. only | Briggs (Upper Travis Peak) | Panola | 1 | 177 | 434K | Sep 2009 – Apr 2026 |
| Burnett Unit 9 G-6-282335 | R. Lacy Services, Ltd. only | Briggs (Upper Travis Peak) | Panola | 1 | 117 | 8.05K | Jan 2017 – Aug 2022 |
| Burnett Unit 1 G-6-137548 | Lacy, R., Inc. only | Briggs (Upper Travis Peak) | Panola | 1 | 91 | 24.8K | Jan 1993 – Jan 1996 |
| Briggs Unit 1 G-6-284754 | R. Lacy Services, Ltd. only | Briggs (Upper Travis Peak) | Panola | 1 | 66 | 39.4K | Jul 2018 – Jan 2019 |
| McGee, Scott R. Unit G-6-184708 | XTO Energy Inc. only | Briggs (Upper Travis Peak) | Panola | 1 | 6 | 1.25M | Sep 2000 – Jul 2013 |
| Hodge, F.L. G-6-135339 | XTO Energy Inc. only | Briggs (Upper Travis Peak) | Panola | 1 | 4 | 832K | Jan 1993 – Dec 2009 |
| Womack G-6-128423 | XTO Energy Inc. only | Briggs (Upper Travis Peak) | Panola | 1 | 2 | 1.32M | Jan 1993 – Aug 2010 |
| Roberson, Joe G-6-131446 | XTO Energy Inc. only | Briggs (Upper Travis Peak) | Panola | 1 | 2 | 635K | Jan 1993 – Apr 2026 |
| Holcombe G-6-156026 | XTO Energy Inc. only | Briggs (Upper Travis Peak) | Panola | 1 | 1 | 869K | Aug 1995 – Mar 2004 |
| Hodge, F.L. G-6-129891 | XTO Energy Inc. only | Briggs (Upper Travis Peak) | Panola | 1 | 1 | 1.52M | Jan 1993 – Apr 2026 |
| Hodge, F. L. G-6-187440 | XTO Energy Inc. only | Briggs (Upper Travis Peak) | Panola | 1 | 1 | 800K | Apr 2001 – Apr 2026 |
| Holcombe G-6-164220 | XTO Energy Inc. only | Briggs (Upper Travis Peak) | Panola | 1 | 1 | 27.7K | Jun 1997 – Jul 2004 |
| Briggs-Moreland GU G-6-139810 | XTO Energy Inc. only | Briggs (Upper Travis Peak) | Panola | 1 | 1 | 1.29M | Jan 1993 – Jan 2005 |
| Cameron Unit 2 O-6-15915 | R. Lacy Services, Ltd. only | Briggs (Upper Travis Peak) | Panola | 1 | 0 | 0 | — |
| Walton, Robert Gas Unit G-6-106298 | XTO Energy Inc. only | Briggs (Upper Travis Peak) | Panola | 1 | 0 | 628K | Jan 1993 – Feb 1999 |
| McGee, Scott R. Unit G-6-124435 | XTO Energy Inc. only | Briggs (Upper Travis Peak) | Panola | 1 | 0 | 1.09M | Jan 1993 – Apr 2026 |