| Armstrong O-1-11150 | Petrosaurus, Inc. only | Somerset | Bexar | 2 | 4.64K | 21 | by Jan 1993 – Aug 2021 |
| Strong, W.C. Gas Unit G-6-81719 | TGNR East Texas II LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 4.62K | 604K | Mar 1993 – Aug 2026 |
| Strong G-6-252802 | Sabine Energy Inc. only | Oak Hill (Cotton Valley) | Rusk | 1 | 4.5K | 1.16M | Aug 2009 – Aug 2026 |
| Fannie Armstrong O-3-27611 | McA Petroleum Corporation only | Elm Grove (Upper Steinhauser) | Fayette | 1 | 4.35K | 0 | Nov 2019 – Aug 2026 |
| Armstrong, Iona Faye Gas Unit G-6-154931 | Merit Energy Company only | Oak Hill (Cotton Valley) | Rusk | 1 | 4.35K | 1.12M | May 1995 – Dec 2019 |
| Strong Gas Unit G-6-94569 | TGNR East Texas II LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 4.33K | 2.11M | by Jan 1993 – Aug 2026 |
| Strong Gas Unit G-6-97808 | TGNR East Texas II LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 4.23K | 2.12M | by Jan 1993 – Aug 2026 |
| Armstrong O-10-30633 | V-F Petroleum Inc. only | Andrews (Wolfcamp) | Andrews | 1 | 4.2K | 3.36K | by Jan 1993 – Sep 1994 |
| Strong Gas Unit G-6-152477 | TGNR East Texas II LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 4.12K | 2.47M | Nov 1994 – Aug 2026 |
| Old Ocean Unit G-3-212759 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Brazoria | 1 | 3.74K | 143K | Nov 2005 – Jul 2009 |
| Old Ocean Unit G-3-124253 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Brazoria | 1 | 3.73K | 3.07M | by Jan 1993 – Dec 1997 |
| Strong Gas Unit G-2-192192 | Transpacific Energy, LLC only | Bego (Consolidated) | Goliad | 1 | 3.61K | 329K | Apr 2002 – Aug 2026 |
| Strong, J.B. Gas Unit G-6-202400 | SND Operating, L.L.C. only | Naconiche Creek (Rod.-TP Cons.) | Nacogdoches | 1 | 3.58K | 238K | May 2004 – Oct 2011 |
| Old Ocean Unit G-3-199361 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Brazoria | 1 | 3.56K | 190K | Nov 2003 – Mar 2008 |
| Strong, W.C. G-6-154669 | TGNR East Texas II LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 3.56K | 798K | Jan 1995 – Aug 2026 |
| Old Ocean Unit G-3-135789 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Brazoria | 1 | 3.4K | 543K | by Jan 1993 – Mar 1998 |
| Strong Gas Unit G-6-221741 | Sabine Energy Inc. only | Oak Hill (Cotton Valley) | Harrison | 1 | 3.36K | 702K | Apr 2006 – Aug 2026 |
| Strong, J.B. Gas Unit G-6-231215 | SND Operating, L.L.C. only | Naconiche Creek (Rod.-TP Cons.) | Nacogdoches | 1 | 3.3K | 216K | Aug 2007 – Aug 2026 |
| Strong, J.B. Gas Unit G-6-236133 | SND Operating, L.L.C. only | Naconiche Creek (Rod.-TP Cons.) | Nacogdoches | 1 | 3.23K | 197K | Feb 2008 – Aug 2026 |
| Gragg, W. A., -C- G-8-18401 | Wayop, LLC only | Strong (Congl.) | Palo Pinto | 1 | 3.19K | 250K | by Jan 1993 – Jul 2020 |
| Strong, J.B. Gas Unit G-6-231090 | SND Operating, L.L.C. only | Naconiche Creek (Rod.-TP Cons.) | Nacogdoches | 1 | 3.18K | 173K | Jul 2007 – Aug 2026 |
| Armstrong, Tobin G-4-208656 | Headington Energy Partners, LLC only | Candelaria (Consolidated) | Kenedy | 1 | 3.17K | 687K | Aug 2004 – Dec 2024 |
| Old Ocean Unit G-3-75927 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Brazoria | 1 | 3.14K | 526K | by Jan 1993 – Sep 2008 |
| Armstrong, T. F. "B" O-8-19337 | Treco Oil Company only | Carol, West (Miss.) | Throckmorton | 2 | 3.13K | 12 | Dec 1993 – Dec 1996 |
| Strong Gas Unit G-6-177077 | TGNR East Texas II LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 2.92K | 1.62M | Mar 2000 – Aug 2026 |
| Yeager-Armstrong Caruth O-10-13681 | Sandridge Expl. and Prod., LLC only | Fuhrman (Glorieta) | Andrews | 1 | 2.79K | 98 | by Jan 1993 – Sep 2008 |
| Old Ocean Unit G-3-45146 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Brazoria | 1 | 2.77K | 593K | by Jan 1993 – Jun 1994 |
| Armstrong, Tobin G-4-201255 | Headington Energy Partners, LLC only | Rita, S.E. (Consolidated) | Kenedy | 1 | 2.77K | 551K | Apr 2004 – Jul 2024 |
| Gracey Unit G-3-138138 | Amoco Production Company only | Old Ocean (Armstrong) | Matagorda | 1 | 2.68K | 179K | by Jan 1993 – Dec 1994 |
| Old Ocean Unit G-3-123868 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Brazoria | 1 | 2.63K | 424K | by Jan 1993 – Sep 1995 |
| Armstrong G-4-178369 | Saxum Oil & Gas, LLC only | Ranura ("J-57") | Kenedy | 1 | 2.62K | 131K | Aug 2000 – Nov 2013 |
| Armstrong Deep G-6-235941 | Fortune Resources LLC only | Overton (Cotton Valley Sand) | Cherokee | 1 | 2.61K | 495K | Jan 2008 – Jul 2026 |
| Armstrong, Earl G-5-117287 | Diversified Production LLC only | Personville, N (CV Consolidated) | Limestone | 1 | 2.59K | 591K | by Jan 1993 – Aug 2026 |
| Knight-Strong Gas Unit G-6-71189 | Samson Lone Star, LLC only | Carthage, SE (CV) | Panola | 1 | 2.51K | 175K | by Jan 1993 – Nov 2006 |
| Old Ocean Unit G-3-282112 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Brazoria | 1 | 2.42K | 145K | Nov 2016 – Jul 2026 |
| Armstrong G-10-226843 | Bustamante Resources LLC only | Ken Regan (Delaware) | Reeves | 1 | 2.37K | 14.7K | Feb 2007 – Aug 2026 |
| Armstrong, Tobin G-4-202846 | Headington Energy Partners, LLC only | Candelaria (Consolidated) | Kenedy | 1 | 2.31K | 2.23M | Apr 2004 – Jul 2024 |
| J & S Armstrong State 60-2-6 G-10-276258 | Coterra Energy Operating Co. only | Ford, West (Wolfcamp) | Culberson | 1 | 2.29K | 289K | Jan 2015 – Jul 2022 |
| Armstrong, B. O-8-19388 | Shahan, Richard W. only | Jennifer (Strawn Valasek) | Haskell | 1 | 2.26K | 48 | by Jan 1993 – Jan 1998 |
| Strong Gas Unit G-6-175530 | Rockcliff Energy Operating LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 2.15K | 1.49M | Nov 1999 – Jan 2016 |
| Armstrong, Cora G-6-157871 | Amrwr, LLC only | Brookeland (Austin Chalk, 8800) | Jasper | 1 | 2.1K | 379K | Jan 1996 – Mar 1998 |
| Armstrong, Charles M. (Area X) G-4-136409 | Headington Energy Partners, LLC only | Rita, S.E. (Consolidated) | Kenedy | 1 | 2.09K | 682K | May 2004 – Aug 2025 |
| Old Ocean Unit G-3-180411 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Brazoria | 1 | 2.07K | 43.1K | Oct 2000 – Jul 2001 |
| Old Ocean Unit G-3-69258 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Brazoria | 1 | 2.03K | 1.4M | by Jan 1993 – Aug 1998 |
| Armstrong O-13-20143 | Carter Energy Corporation only | Bryson, East (Caddo) | Jack | 1 | 1.93K | 22.2K | Feb 1994 – Aug 1997 |
| Stroman-Armstrong G-4-14632 | BP America Production Company only | Thompsonville, NE (Wilcox 9500) | Webb | 1 | 1.92K | 1.74M | by Jan 1993 – Jun 2002 |
| Armstrong O-10-52032 | Vin Fisher Operating, Inc. only | Block a-34 (San Andres) | Andrews | 1 | 1.85K | 0 | Jul 2019 – Dec 2025 |
| Armstrong, Tobin G-4-208655 | Headington Energy Partners, LLC only | Candelaria (Consolidated) | Kenedy | 1 | 1.84K | 810K | Aug 2004 – Apr 2025 |
| Strong, T. Gas Unit G-6-216495 | Proline Energy Resources Inc only | Beckville (Cotton Valley) | Rusk | 1 | 1.76K | 425K | Nov 2005 – Aug 2026 |
| Strong Gas Unit G-6-231590 | SND Operating, L.L.C. only | Naconiche Creek (Cotton Valley) | Nacogdoches | 1 | 1.69K | 863K | Jul 2007 – Aug 2026 |