| Strong, J.B. Gas Unit G-6-237028 | SND Operating, L.L.C. only | Naconiche Creek (Rod.-TP Cons.) | Nacogdoches | 1 | 1.67K | 92.3K | May 2008 – Aug 2026 |
| Strong, W. C. G-6-235645 | TGNR East Texas II LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 1.56K | 753K | Jan 2008 – Aug 2026 |
| Strong Gas Unit G-2-169254 | Transpacific Energy, LLC only | Bego (Consolidated) | Goliad | 1 | 1.48K | 216K | Apr 1998 – Aug 2026 |
| Gracey Unit G-3-132375 | Amoco Production Company only | Old Ocean (Armstrong) | Matagorda | 1 | 1.47K | 778K | by Jan 1993 – Aug 1995 |
| Louis Armstrong Unit G-13-240619 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Somervell | 1 | 1.47K | 1.08M | Aug 2007 – Aug 2026 |
| McKnight, M.B. O-10-47228 | Stronghold Energy II Oper, LLC only | Running W, N. (Holt) | Crane | 1 | 1.46K | 1.34K | May 2017 – Nov 2019 |
| Old Ocean Unit G-3-282408 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Brazoria | 1 | 1.42K | 96.9K | Feb 2017 – Mar 2019 |
| Armstrong Ranch G-4-179562 | Cox, Martin Regan only | Aviators, South (Wilcox 9900) | Webb | 1 | 1.4K | 265K | Oct 2000 – Feb 2005 |
| Old Ocean Unit G-3-158221 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Brazoria | 1 | 1.39K | 110K | May 1996 – Dec 1998 |
| Armstrong G-4-181794 | Abaco Operating, LLC only | Candelaria, East (Deep Frio) | Kenedy | 1 | 1.37K | 28.2K | Dec 2000 – Sep 2004 |
| Farran, W. W. O-1-13 | Essex & Armstrong only | Anchorage | Atascosa | 1 | 1.34K | 7 | by Jan 1993 – Jun 1997 |
| Gragg, W. A., -G- G-8-18403 | Wayop, LLC only | Strong (Congl.) | Palo Pinto | 1 | 1.31K | 209K | by Jan 1993 – Aug 2016 |
| Strong-Lowry Deep (AW) G-6-286448 | Sabine Energy Inc. only | Carthage (Haynesville Shale) | Harrison | 1 | 1.26K | 9.14M | Feb 2019 – Aug 2026 |
| Strong, B.E. Gas Unit G-6-222048 | Proline Energy Resources Inc only | Beckville (Cotton Valley) | Rusk | 1 | 1.25K | 318K | Jun 2006 – Aug 2026 |
| Louis Armstrong Unit G-13-247016 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Somervell | 1 | 1.21K | 1.19M | Aug 2007 – Aug 2026 |
| Strong, T. Gas Unit G-6-213133 | Proline Energy Resources Inc only | Beckville (Cotton Valley) | Rusk | 1 | 1.2K | 386K | Jun 2005 – Aug 2024 |
| Old Ocean Unit G-3-234300 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Brazoria | 1 | 1.17K | 74.7K | Jan 2008 – Aug 2026 |
| Armstrong, Louis Unit G-13-235443 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Somervell | 1 | 1.09K | 1.28M | Aug 2007 – Aug 2026 |
| Old Ocean Unit G-3-161727 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Matagorda | 1 | 1.08K | 708K | Oct 1996 – Apr 2004 |
| Armstrong, Tobin "S" G-4-245399 | Headington Energy Partners, LLC only | Candelaria (Consolidated) | Kenedy | 1 | 1.06K | 789K | Nov 2008 – Mar 2025 |
| Armstrong, Tobin G-4-288700 | Headington Energy Partners, LLC only | Candelaria (Consolidated) | Kenedy | 1 | 1.06K | 25 | Sep 2020 – Apr 2021 |
| Louis Armstrong Unit G-13-235370 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Somervell | 1 | 1.05K | 586K | Aug 2007 – Aug 2026 |
| Louis Armstrong Unit G-13-233895 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Somervell | 1 | 1.04K | 311K | Aug 2007 – Jun 2025 |
| Gracey O-3-23996 | Davis Gulf Coast, Inc. only | Old Ocean (Armstrong) | Matagorda | 1 | 991 | 48.2K | Nov 2000 – Apr 2004 |
| Armstrong, Roy O-8-26017 | Rocker a Operating Company only | Blake (Caddo) | Brown | 1 | 955 | 21 | by Jan 1993 – Jun 1995 |
| Armstrong 14 G-10-289984 | Resolute Natural Res. Co., LLC only | Phantom (Wolfcamp) | Reeves | 1 | 948 | 1.04K | Jan 2012 – Apr 2012 |
| Stroman, D. C. "A" G-4-165729 | Calstar Energy Consultants, LLC only | Armstrong (F-53) | Jim Hogg | 1 | 920 | 292K | Sep 1997 – Jan 2010 |
| Strong, S. K. O-6-14560 | XTO Energy Inc. only | Minden (Travis Peak Cons.) | Rusk | 1 | 903 | 30.1K | Apr 2006 – Jul 2010 |
| Armstrong, Tobin "S" G-4-223881 | Headington Energy Partners, LLC only | Candelaria (Consolidated) | Kenedy | 1 | 901 | 608K | Dec 2006 – Apr 2023 |
| Holler O-10-29224 | Armstrong, John Cole only | Sunburst (Olds) | Culberson | 4 | 871 | 38 | by Jan 1993 – Jun 1997 |
| Armstrong D G-6-246793 | Wagner Oil Company only | Overton (Cotton Valley Sand) | Cherokee | 1 | 865 | 153K | Sep 2008 – Jul 2015 |
| Armstrong, Louis Unit G-13-236178 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Somervell | 1 | 841 | 157K | Aug 2007 – Jun 2026 |
| Old Ocean Unit G-3-163243 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Brazoria | 1 | 840 | 38.1K | Feb 1997 – Dec 1997 |
| Armstrong, V. B. O-14-3492 | O. H. M. Operating only | Panhandle Carson County Field | Carson | 1 | 832 | 12.6K | by Jan 1993 – May 2011 |
| Strong O-6-12186 | Sonat Exploration Company -Tyler only | Beckville, West (Travis Peak) | Panola | 1 | 788 | 7 | by Jan 1993 – Aug 1993 |
| Under the Hill State Unit 1 O-8-29767 | Cholla Petroleum, Inc. only | Strong, SW (Congl. D) | Palo Pinto | 1 | 776 | 4.25K | Jul 2006 – Apr 2007 |
| Old Ocean Unit G-3-136845 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Matagorda | 1 | 768 | 111K | by Jan 1993 – Apr 1996 |
| Stroman Armstrong G-4-123366 | XCL-Texas, Inc. only | Aviators, South (Wilcox 9900) | Webb | 1 | 722 | 94.5K | by Jan 1993 – Oct 1995 |
| Strong, B.E. Gas Unit G-6-212245 | Proline Energy Resources Inc only | Beckville (Cotton Valley) | Rusk | 1 | 701 | 264K | Jun 2005 – Aug 2026 |
| Gragg, W. A., -K- G-8-18404 | Wayop, LLC only | Strong (Congl.) | Palo Pinto | 1 | 611 | 743K | by Jan 1993 – Sep 2024 |
| Strong, Clyde GU G-6-222036 | Proline Energy Resources Inc only | Beckville (Cotton Valley) | Rusk | 1 | 574 | 266K | Jun 2006 – Aug 2026 |
| W.A. Gragg -G- G-8-208449 | Wayop, LLC only | Strong (Congl.) | Palo Pinto | 1 | 566 | 314K | Apr 2005 – Sep 2024 |
| Old Ocean Unit G-3-120921 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Brazoria | 1 | 557 | 33.4K | Jun 1995 – Nov 1995 |
| Armstrong/Klemcke Unit O-1-7624 | Calk Oil Company only | Somerset | Bexar | 5 | 538 | 19 | by Jan 1993 – Jun 2003 |
| Armstrong O-10-48658 | CLR Secondary Recovery, LLC only | Payton (Mississippian) | Ward | 1 | 536 | 0 | Dec 2016 – Sep 2018 |
| Old Ocean Unit G-3-136293 | Amoco Production Company only | Old Ocean (Armstrong) | Brazoria | 1 | 501 | 235K | by Jan 1993 – Jul 1993 |
| Gragg, W. A., -B- G-8-18400 | Wayop, LLC only | Strong (Congl.) | Palo Pinto | 1 | 499 | 149K | by Jan 1993 – Jan 2016 |
| Armstrong, C. W. O-13-15936 | McKee, Kenneth W. Oil Co. only | Jack County Regular | Jack | 2 | 493 | 21 | by Jan 1993 – Oct 1994 |
| Strong, J.B. Gas Unit G-6-107868 | Chesapeake Operating, Inc. only | Naconiche Creek (Rod.-TP Cons.) | Nacogdoches | 1 | 482 | 168K | by Jan 1993 – Mar 2009 |
| Old Ocean Unit G-3-130426 | Hilcorp Energy Company only | Old Ocean (Armstrong) | Brazoria | 1 | 469 | 29K | by Jan 1993 – Jul 1995 |