| Griffin Ranch OU A O-6-14754 | Sydri Operating, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 131K | 226K | Feb 2008 – Apr 2026 |
| Ginn Heirs G.U. 1 G-6-143383 | Sydri Operating, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 74.9K | 1.3M | Jan 1993 – Jun 2015 |
| Burton O-6-14908 | Sheer Energy, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 47.6K | 223K | May 2009 – Feb 2026 |
| Bell GU #1 G-6-147458 | Sydri Operating, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 44.1K | 960K | Nov 1993 – Nov 2023 |
| Griffin Ranch GU #1 G-6-144659 | Sydri Operating, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 33.7K | 955K | Mar 1993 – Mar 2024 |
| Sharpe, Dot O-6-14741 | TGNR East Texas II LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 30.8K | 454K | Feb 2008 – Apr 2026 |
| Horton, Toby Gas Unit No. 1 G-6-226407 | Sydri Operating, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 30.1K | 1.11M | Feb 2007 – Feb 2021 |
| Lone Star G-6-163783 | TGNR East Texas II LLC only | Danville (TP-CV Cons.) | Rusk | 1 | 29.3K | 1.27M | Jun 1997 – Oct 2025 |
| Griffin Ranch G. U. 3 O-6-14758 | Sydri Operating, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 24.7K | 160K | Feb 2008 – Nov 2023 |
| Griffin Ranch G.U. 2 G-6-244640 | Sydri Operating, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 23K | 1.7M | Nov 2008 – Sep 2024 |
| Utzman, Roma Oil Unit O-6-14772 | Sydri Operating, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 19.7K | 450K | Feb 2008 – Dec 2025 |
| Griffin Ranch G.U. 5 G-6-243373 | Sydri Operating, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 19.4K | 640K | Jul 2008 – Sep 2024 |
| Dickson, Starr GU #1 G-6-142288 | Sydri Operating, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 18.9K | 986K | Jan 1993 – Feb 2024 |
| Flanagan G-6-226559 | TGNR East Texas II LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 17.5K | 804K | Mar 2007 – Apr 2026 |
| Griffin Ranch OU B O-6-14757 | Titan Rock E&P, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 17.4K | 367K | Feb 2008 – May 2021 |
| Griffin Ranch O.U. 6 O-6-14762 | Indigo Resources LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 17.2K | 205K | Dec 2007 – Oct 2017 |
| Bell Oil Unit #1 O-6-14764 | Sydri Operating, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 17.1K | 206K | Feb 2008 – Aug 2023 |
| Griffin Ranch GU 6 G-6-219704 | Sydri Operating, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 15.6K | 1.77M | Mar 2006 – Apr 2026 |
| Griffin Ranch GU #2 G-6-154205 | Sydri Operating, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 15.6K | 1.31M | Mar 1995 – Apr 2026 |
| Flanagan G-6-239471 | TGNR East Texas II LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 14.9K | 1.07M | Jul 2008 – Dec 2017 |
| Lee, C. W. G-6-15983 | Long Trusts, The only | Danville (TP-CV Cons.) | Rusk | 1 | 13.8K | 2.11M | Jan 1993 – Mar 2026 |
| Gunn, Margaret G-6-172510 | Sydri Operating, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 13.3K | 446K | Mar 1999 – Nov 2008 |
| Finney G-6-222004 | Cypress Production, Inc. only | Danville (TP-CV Cons.) | Rusk | 1 | 13.2K | 268K | Jul 2006 – Mar 2015 |
| Lee, W.C. G-6-231087 | Buffco Production Inc. only | Danville (TP-CV Cons.) | Rusk | 1 | 12.7K | 710K | Aug 2007 – Jul 2019 |
| Daniels, Judge G.U. 1 G-6-142213 | TGNR East Texas II LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 12.5K | 900K | Jan 1993 – Mar 2002 |
| Griffin Ranch G.U. 7 G-6-242909 | Sydri Operating, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 12.1K | 1.15M | Feb 2008 – Apr 2026 |
| Griffin Ranch G.U. 2 G-6-244633 | Sydri Operating, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 12.1K | 1.64M | Nov 2008 – Apr 2026 |
| Horton, Toby Gas Unit No. 1 G-6-199507 | Sydri Operating, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 11.9K | 1.63M | Sep 2003 – Apr 2026 |
| Horton, Toby Gas Unit No. 1 G-6-205940 | Sydri Operating, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 11.7K | 1.72M | Oct 2004 – Apr 2026 |
| City of Kilgore O-6-14776 | Atropos Exploration Company only | Danville (TP-CV Cons.) | Gregg | 1 | 11.7K | 0 | Feb 2008 – Mar 2026 |
| Griffin Ranch G.U. 8 G-6-244645 | Sydri Operating, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 11.6K | 1.9M | Nov 2008 – Apr 2026 |
| Holt, J.W. G-6-126766 | Samson Lone Star, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 11.5K | 486K | Jan 1993 – Oct 2009 |
| Horton, Toby Gas Unit No. 1 O-6-14743 | Titan Rock E&P, LLC only | Danville (TP-CV Cons.) | Gregg | 2 | 11.4K | 524K | Feb 2008 – Apr 2018 |
| Ginn Heirs G.U. 1 G-6-190969 | Sydri Operating, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 11.2K | 403K | May 2002 – Feb 2021 |
| Daniels, Judge G.U. 1 G-6-168086 | TGNR East Texas II LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 10.8K | 829K | Mar 1998 – Apr 2026 |
| Griffin Ranch G.U. 2 G-6-244643 | Sydri Operating, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 10.7K | 1.87M | Nov 2008 – Apr 2026 |
| Griffin Ranch G.U. 2 G-6-213695 | Sydri Operating, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 10.7K | 1.74M | May 2005 – Apr 2026 |
| Horton, Joe Clyde O.U. NO.1 O-6-14745 | Sydri Operating, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 10.6K | 98.3K | Oct 2009 – Aug 2022 |
| Griffin Ranch G.U. 1 G-6-238310 | Sydri Operating, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 10.2K | 1.07M | Feb 2008 – Apr 2026 |
| Griffin Ranch G.U. 1 G-6-221194 | Sydri Operating, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 10.1K | 1.33M | Jan 2006 – Apr 2026 |
| Wilson Dickson O.U. 1 O-6-14755 | Sydri Operating, LLC only | Danville (TP-CV Cons.) | Gregg | 4 | 9.8K | 102K | Feb 2008 – Oct 2018 |
| Lee, W.C. G-6-238995 | Buffco Production Inc. only | Danville (TP-CV Cons.) | Rusk | 1 | 9.72K | 754K | May 2008 – Apr 2026 |
| Griffin Ranch G.U. 6 G-6-214950 | Sydri Operating, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 9.66K | 1.71M | Aug 2005 – Apr 2026 |
| Horton, Toby Gas Unit No. 1 G-6-199509 | Sydri Operating, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 9.29K | 988K | Jan 2004 – Nov 2023 |
| Griffin Ranch GU #3 G-6-33076 | Exco Operating Company, LP only | Danville (TP-CV Cons.) | Gregg | 1 | 9.24K | 365K | Jan 1993 – May 2010 |
| Horton, Toby Gas Unit No. 1 G-6-204693 | Sydri Operating, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 9.13K | 682K | Jun 2004 – Sep 2024 |
| Barton, Martha Gas Unit O-6-14770 | Sydri Operating, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 8.75K | 311K | Feb 2008 – Jun 2022 |
| Daniels, Judge G.U. 1 G-6-228906 | TGNR East Texas II LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 8.69K | 1.26M | May 2007 – Apr 2026 |
| Griffin Ranch G.U. 6 G-6-214214 | Sydri Operating, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 8.67K | 1.63M | Aug 2005 – Apr 2026 |
| Ginn Heirs G.U. 1 G-6-148255 | Titan Rock E&P, LLC only | Danville (TP-CV Cons.) | Gregg | 1 | 8.48K | 159K | Dec 1993 – Jan 2001 |