| Triangle G-3-224958 | Noble Energy Inc only | Chocolate Bayou ( McKelvy) | Brazoria | 1 | 3.15K | 157K | Dec 2006 – May 2007 |
| Lutkenhaus , George O-13-19405 | WFW Production Company, Inc. only | Dangle | Cooke | 1 | 3.08K | 21 | by Jan 1993 – Aug 2001 |
| Donnell Unit O-13-7900 | Triangle Energy Co. only | Jay (Strawn 2300) | Young | 5 | 3.06K | 43 | by Jan 1993 – Mar 1999 |
| Stash G-8-116765 | Fortuna Exploration, Inc. only | Triangle -H- (Upper Gray) | Coleman | 1 | 2.52K | 230K | by Jan 1993 – Dec 2015 |
| Hebert Estate O-3-3861 | Langley, Carl A. only | Sour Lake | Hardin | 1 | 2.29K | 21 | by Jan 1993 – Jul 2026 |
| Angle G-3-182034 | XOG Resources, LLC only | Chocolate Bayou (Andrau) | Brazoria | 1 | 2.24K | 39.2K | Mar 2001 – Aug 2001 |
| Cloud, Sebesta G-3-187982 | Brigham Oil & Gas, L.P. only | Angleton (Frio 9800) | Brazoria | 1 | 2.1K | 123K | Oct 2001 – Sep 2002 |
| Munson Unit G-3-213143 | Timberwolf Energy, Inc. only | Angleton, South (12,100 Frio) | Brazoria | 1 | 1.95K | 422K | Dec 2004 – Mar 2008 |
| Collier, David et Al O-3-16950 | Triangle Petroleum Service Co. only | Hull | Liberty | 1 | 1.84K | 23 | by Jan 1993 – Mar 1996 |
| Coyne O-1-12650 | Triangle Oil Producers only | Pearsall (Austin Chalk) | La Salle | 2 | 1.81K | 11 | by Jan 1993 – Aug 1994 |
| DLB O-8-32771 | Tanglewood Oil & Gas Co. only | Coleman County Regular | Coleman | 2 | 1.41K | 0 | Aug 2024 – Aug 2026 |
| Sallee G-13-237010 | Tanglewood Oil & Gas LLC only | Newark, East (Barnett Shale) | Parker | 1 | 1.32K | 528K | Nov 2007 – Mar 2013 |
| Triangle J G-13-279245 | FX Energy Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 1.27K | 18.5K | Oct 2015 – Sep 2019 |
| Triangle B G-11-157073 | Burnett Oil Co., Inc. only | Moon Camp (Conglomerate) | Cottle | 1 | 1.25K | 62.1K | Oct 1995 – Sep 1997 |
| Smith G-3-198692 | Noble Energy Inc only | Angleton, South (12,600) | Brazoria | 1 | 899 | 49.6K | Oct 2003 – Feb 2004 |
| Ridglea Triangle G-13-269811 | TEP Barnett USA, LLC only | Newark, East (Barnett Shale) | Tarrant | 1 | 898 | 4.03M | Aug 2013 – Aug 2026 |
| Scott G-3-248941 | Slawson Exploration Company, Inc only | Angleton, South (12,600) | Brazoria | 1 | 868 | 66.5K | Jul 2007 – Aug 2008 |
| Gathings/Haecker O-1-7195 | Tanglehead Operating, LLC only | La Vernia | Guadalupe | 1 | 782 | 77 | by Jan 1993 – Aug 2022 |
| Terry, J. H. O-3-3862 | Langley, Carl A. only | Sour Lake | Hardin | 1 | 776 | 21 | by Jan 1993 – Jul 2026 |
| Triangle G-3-191683 | Noble Energy Inc only | Chocolate Bayou ( Rycade) | Brazoria | 1 | 709 | 78.5K | Sep 2002 – Jan 2003 |
| Perlitz-Wrangler G-1-209362 | Munoz Farms Operating Co., LLC only | Pilosa, East (2ND San Miguel) | Zavala | 1 | 582 | 666 | Mar 2005 – Dec 2005 |
| Munson Unit G-3-183526 | Alpine Resources, Inc. only | Angleton, South (12,100 Frio) | Brazoria | 1 | 573 | 126K | Mar 2001 – May 2001 |
| Ankenman Family G-3-199008 | Noble Energy Inc only | Angleton, S. (Frio 13 FB-B) | Brazoria | 1 | 562 | 13.7K | Dec 2003 – May 2004 |
| Simmons, Ela O-13-24263 | Triangle Energy Co. only | Henrietta, E. (Viola) | Clay | 1 | 389 | 2.85K | by Jan 1993 – Jan 1996 |
| Ridglea Triangle G-13-269810 | TEP Barnett USA, LLC only | Newark, East (Barnett Shale) | Tarrant | 1 | 353 | 3.39M | Aug 2013 – Aug 2026 |
| Langley, J. C. G-6-222153 | Samson Lone Star, LLC only | Trawick (James) | Nacogdoches | 1 | 304 | 71.6K | Mar 2006 – Jan 2007 |
| Perlitz-Wrangler O-1-14621 | Centaur Exploration LLC only | Pilosa, East (2ND San Miguel) | Zavala | 1 | 251 | 0 | Dec 2005 – Apr 2009 |
| Neubauer Unit #1 O-1-14019 | Tanglewood Oil & Gas Co. only | La Vernia, West (Austin Chalk) | Wilson | 1 | 197 | 54 | Aug 1995 – May 1998 |
| Henderson - State O-4-13541 | Triangle Three Resources L.L.C. only | Labbe | Duval | 1 | 175 | 0 | Mar 2009 – Mar 2010 |
| Langley-Allbright O-1-14938 | Chaparral Natural Resources,inc. only | Fentress (1750) | Caldwell | 1 | 145 | 0 | Jun 2008 – Aug 2008 |
| Langley, R. A.-Porter, E. O-1-3746 | Lucros International Corporation only | Somerset | Atascosa | 4 | 129 | 8 | May 1993 – Jan 1994 |
| Langley Hrs. O-1-1634 | Great Plains Resources, Inc. only | Somerset | Atascosa | 7 | 110 | 16 | May 1993 – May 1998 |
| Wrangler G-3-261187 | Southwest Resources, Inc. only | Giddings (Austin Chalk, Gas) | Grimes | 1 | 82 | 1.43M | Sep 2010 – Aug 2026 |
| Langley, A. G. O-1-1633 | Great Plains Resources, Inc. only | Somerset | Atascosa | 4 | 80 | 7 | May 1993 – May 1998 |
| Spangler Gas Unit G-6-57676 | Fair Oil, Ltd. only | Douglass,sw. (Pettit, Upper) | Nacogdoches | 1 | 77 | 673K | by Jan 1993 – Sep 2006 |
| Wrangler G-3-175276 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Grimes | 1 | 26 | 3.46M | Sep 1999 – Aug 2026 |
| Langley-Allbright O-1-18621 | Higher Standard Oil Company,inc. only | Fentress (1750) | Caldwell | 1 | 22 | 0 | Sep 2015 – Dec 2015 |
| Reim, Milton O-3-20211 | Tanglewood Oil & Gas Co. only | Giddings (Austin Chalk-3) | Lee | 1 | 15 | 238 | Oct 1994 – Jan 1998 |
| Langley G-13-199496 | BKV North Texas, LLC only | Newark, East (Barnett Shale) | Tarrant | 1 | 3 | 2.77M | Nov 2003 – Aug 2026 |
| Golden Triangle "H" G-13-198404 | BKV North Texas, LLC only | Newark, East (Barnett Shale) | Tarrant | 1 | 3 | 1.28M | Nov 2003 – Mar 2014 |
| Golden Triangle "C" G-13-195242 | BKV North Texas, LLC only | Newark, East (Barnett Shale) | Tarrant | 1 | 3 | 902K | Mar 2003 – Aug 2026 |
| Langley-Revelstoke G-13-207284 | BKV North Texas, LLC only | Newark, East (Barnett Shale) | Tarrant | 1 | 2 | 1.56M | Jan 2005 – Aug 2026 |
| Langley G-13-203441 | BKV North Texas, LLC only | Newark, East (Barnett Shale) | Tarrant | 1 | 1 | 2.15M | Jul 2004 – Aug 2026 |
| Schraub Unit O-1-14266 | Tanglewood Oil & Gas Co. only | La Vernia (Austin Chalk) | Wilson | 1 | 1 | 0 | Jul 1999 – Jul 1999 |
| Langley G-13-52748 | Hawkbend LLC only | Gas Finders (Congl.) | Denton | 1 | 1 | 115K | by Jan 1993 – Jun 2026 |
| Langley, J. C. G-6-228553 | Samson Lone Star, LLC only | Trawick (James) | Nacogdoches | 1 | 0 | 0 | — |
| Langley, J. C. G-6-228554 | Samson Lone Star, LLC only | Trawick (Pettit) | Nacogdoches | 1 | 0 | 0 | — |
| Langley, J.C. GU 1 G-6-231647 | Samson Lone Star, LLC only | Trawick (James) | Nacogdoches | 1 | 0 | 0 | — |
| Langley, J.C. GU 1 G-6-240172 | Samson Lone Star, LLC only | Trawick (James) | Nacogdoches | 1 | 0 | 0 | — |
| Langley, J.C. GU 1 G-6-240173 | Samson Lone Star, LLC only | Trawick (Travis Peak) | Nacogdoches | 1 | 0 | 0 | — |