| Strong Fundamental A G-10-287083 | Permian Resources Operating, LLC only | Phantom (Wolfcamp) | Reeves | 1 | 472K | 3.5M | Mar 2019 – Apr 2026 |
| Armstrong Gas Unit G-3-110517 | Perdido Energy, LLC only | Peveto (9600) | Orange | 1 | 297K | 6.94M | Jan 1993 – Jan 2024 |
| Armstrong State G-10-281705 | COG Operating LLC only | Ford, West (Wolfcamp) | Culberson | 1 | 161K | 3.07M | Nov 2016 – Apr 2026 |
| Armstrong-Armstrong Unit G-3-144580 | Hunt Petroleum Corporation only | Giddings (Austin Chalk, Gas) | Fayette | 1 | 161K | 1.9M | Feb 1993 – Jan 2004 |
| Armstrong G-14-273227 | Unbridled Resources, LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 149K | 6.65M | Oct 2013 – Apr 2026 |
| Armstrong State G-10-278238 | COG Operating LLC only | Ford, West (Wolfcamp) | Culberson | 1 | 148K | 2.88M | May 2015 – Apr 2026 |
| Armstrong State G-10-278421 | COG Operating LLC only | Sandbar (Bone Spring) | Culberson | 1 | 146K | 1.03M | Apr 2013 – Mar 2025 |
| Armstrong N State Unit G-10-276246 | COG Operating LLC only | Sandbar (Bone Spring) | Culberson | 1 | 109K | 739K | Feb 2014 – Mar 2025 |
| Old Ocean Unit G-3-133678 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Brazoria | 1 | 88.5K | 1.3M | Jan 1993 – Jul 2001 |
| Twomey Heirs-Knight-Strong-Nolan G-6-286957 | TGNR East Texas II LLC only | Carthage, SE (CV) | Panola | 1 | 77.7K | 3.77M | Aug 2018 – Apr 2026 |
| Old Ocean Unit G-3-125946 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Brazoria | 1 | 77.4K | 657K | Jan 1993 – Sep 2004 |
| Armstrong G-14-276551 | Unbridled Resources, LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 77K | 3.69M | Nov 2014 – Apr 2026 |
| Knight-Strong Gas Unit G-6-276959 | TGNR East Texas II LLC only | Carthage, SE (CV) | Panola | 1 | 66.7K | 5.03M | Jan 2015 – Apr 2026 |
| Strong-Lowry (AW) G-6-286855 | Sabine Energy Inc. only | Oak Hill (Cotton Valley) | Harrison | 1 | 65.5K | 6.68M | Feb 2019 – Apr 2026 |
| Armstrong G-14-280376 | Unbridled Resources, LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 64.6K | 3.31M | Jul 2015 – Jul 2025 |
| Armstrong 16 G-10-289347 | Resolute Natural Res. Co., LLC only | Phantom (Wolfcamp) | Reeves | 1 | 64.4K | 700K | Sep 2012 – Sep 2024 |
| Old Ocean Unit G-3-157797 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Brazoria | 1 | 54.3K | 3.21M | May 1995 – Jan 2024 |
| Armstrong G-14-275384 | Unbridled Resources, LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 52.4K | 2.67M | Jun 2014 – Apr 2026 |
| Strong-Crim (AW) G-6-290643 | Sabine Energy Inc. only | Oak Hill (Cotton Valley) | Rusk | 1 | 51.5K | 6.09M | Jan 2021 – Apr 2026 |
| Strong Gas Unit G-2-203413 | Transpacific Energy, LLC only | Bego (Consolidated) | Goliad | 1 | 50.7K | 4.6M | May 2004 – Apr 2026 |
| Old Ocean Unit G-3-131307 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Brazoria | 1 | 46K | 1.76M | Jan 1993 – Dec 1999 |
| Strong Gas Unit G-2-164492 | Transpacific Energy, LLC only | Bego (Consolidated) | Goliad | 1 | 44.9K | 4.48M | Aug 1997 – Apr 2026 |
| Strong-Crim (AW) G-6-290676 | Sabine Energy Inc. only | Oak Hill (Cotton Valley) | Rusk | 1 | 43.9K | 6.66M | Jan 2021 – Apr 2026 |
| Old Ocean Unit G-3-87408 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Matagorda | 1 | 37.5K | 2.5M | Jan 1993 – Jan 2011 |
| Strong, W. C. G-6-276749 | TGNR East Texas II LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 35.2K | 3.63M | Oct 2014 – Apr 2026 |
| Old Ocean Unit G-3-135848 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Brazoria | 1 | 34.8K | 4.22M | Jan 1993 – Nov 2011 |
| Knight-Strong Gas Unit G-6-273569 | TGNR East Texas II LLC only | Carthage, SE (CV) | Panola | 1 | 31.2K | 4.22M | Jul 2014 – Apr 2026 |
| Strong Gas Unit G-2-166374 | Transpacific Energy, LLC only | Bego (Consolidated) | Goliad | 1 | 31K | 3.51M | Dec 1997 – Apr 2026 |
| Armstrong 14 G-10-289550 | Resolute Natural Res. Co., LLC only | Phantom (Wolfcamp) | Reeves | 1 | 30.4K | 229K | Jul 2012 – Nov 2021 |
| Old Ocean Unit G-3-7587 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Brazoria | 1 | 28K | 4.27M | Jan 1993 – Feb 2004 |
| Old Ocean Unit G-3-7584 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Brazoria | 1 | 26.5K | 3.57M | Jan 1993 – Nov 2002 |
| Old Ocean Unit G-3-126737 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Brazoria | 1 | 26.1K | 1.85M | Jan 1993 – Apr 2026 |
| Knight-Strong Gas Unit G-6-268190 | TGNR East Texas II LLC only | Carthage, SE (CV) | Panola | 1 | 25.9K | 1.9M | Mar 2013 – Apr 2026 |
| Armstrong G-14-282790 | Unbridled Resources, LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 25.5K | 1.23M | Dec 2016 – Apr 2026 |
| Old Ocean Unit G-3-136880 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Brazoria | 1 | 25.1K | 4.42M | Jan 1993 – Apr 2026 |
| Armstrong G-14-218380 | Complete Oil & Gas Services, LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 24.3K | 1.1M | Apr 2006 – Mar 2023 |
| Armstrong G-14-276813 | Unbridled Resources, LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 22.1K | 1.35M | Jul 2014 – Jul 2025 |
| Strong Gas Unit G-2-190858 | Transpacific Energy, LLC only | Bego (Consolidated) | Goliad | 1 | 21.5K | 2.41M | Feb 2002 – Apr 2026 |
| Armstrong G-14-286875 | Unbridled Resources, LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 20.5K | 1.31M | Jul 2017 – Apr 2026 |
| Old Ocean Unit G-3-136851 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Brazoria | 1 | 20.4K | 1.47M | Jan 1993 – Apr 2003 |
| Old Ocean Unit G-3-157759 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Brazoria | 1 | 19.5K | 1.92M | Jul 1995 – Dec 2007 |
| Armstrong G-14-217303 | Complete Oil & Gas Services, LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 19.5K | 1.03M | Oct 2005 – Mar 2023 |
| Old Ocean Unit G-3-170146 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Brazoria | 1 | 19.5K | 4.23M | Aug 1998 – Aug 2003 |
| Old Ocean Unit G-3-235088 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Brazoria | 1 | 18.5K | 1.16M | Mar 2008 – Apr 2026 |
| Armstrong G-14-229819 | Zephyr Lone Star Oper Co.,l.l.c. only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 18.5K | 845K | Jul 2007 – Jan 2018 |
| Strong Gas Unit G-2-169126 | Transpacific Energy, LLC only | Bego (Consolidated) | Goliad | 1 | 18.1K | 5.1M | Oct 1997 – Apr 2026 |
| Knight-Strong Gas Unit G-6-141468 | Samson Lone Star, LLC only | Carthage, SE (CV) | Panola | 1 | 17.1K | 1.04M | Jan 1993 – Aug 2014 |
| Old Ocean Unit G-3-158667 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Brazoria | 1 | 15.7K | 1.42M | May 1995 – Apr 2008 |
| Armstrong G-14-210628 | Complete Oil & Gas Services, LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 15.5K | 823K | Mar 2005 – Mar 2023 |
| Old Ocean Unit G-3-137150 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Brazoria | 1 | 14.2K | 1.99M | Jan 1993 – Apr 1998 |