| Dugger-Smith Unit G-3-149897 | Anadarko E&P Company LP only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 224K | 2.38M | May 1994 – Nov 2002 |
| Smith Unit G-4-255576 | JC Bear Operating LLC only | Mobil-David (Frio 12,600) | Nueces | 1 | 138K | 2.4M | Feb 2010 – Mar 2026 |
| Lake-Smith Unit G-3-147607 | Enervest Operating, L.L.C. only | Giddings (Austin Chalk, Gas) | Brazos | 1 | 132K | 1.42M | Nov 1993 – Nov 2012 |
| Sealy Smith Unit G-3-145452 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk, Gas) | Burleson | 1 | 64.4K | 1.82M | Apr 1993 – Jun 2017 |
| Dugger-Smith Unit G-3-201120 | Magnolia Oil & Gas Operating LLC only | Navasota River (Cretaceous Lwr.) | Brazos | 1 | 14.6K | 1.73M | Jan 2004 – Oct 2021 |
| Jerry Smith Unit G-13-267777 | Scout Energy Management LLC only | Newark, East (Barnett Shale) | Wise | 1 | 10K | 173K | Aug 2012 – Sep 2019 |
| Sealy Smith Unit G-3-148181 | Williams, Clayton Energy, Inc. only | Giddings (Austin Chalk, Gas) | Burleson | 1 | 7.75K | 213K | Jan 1994 – Jan 2002 |
| Werner-Smith Unit G-6-82809 | Harleton Oil & Gas Inc. only | Carthage (Cotton Valley) | Panola | 1 | 5.92K | 491K | Jan 1993 – Mar 2012 |
| Smith Unit G-2-147329 | Lomak Production Company only | Bloomington (6000) | Victoria | 1 | 4.15K | 61.7K | Nov 1993 – Aug 1994 |
| Smith Unit G-13-264571 | McCutchin Petroleum Corporation only | Newark, East (Barnett Shale) | Wise | 1 | 3.86K | 2.35M | Jun 2009 – Mar 2026 |
| J. E. Smith Unit G-13-265807 | McCutchin Petroleum Corporation only | Newark, East (Barnett Shale) | Wise | 1 | 3.67K | 310K | Jul 2011 – Feb 2020 |
| Borders-Smith Unit #3 G-6-68657 | TGNR East Texas LLC only | Carthage (Cotton Valley) | Panola | 1 | 3.62K | 1.23M | Jan 1993 – Apr 2026 |
| Smith Unit G-13-264295 | McCutchin Petroleum Corporation only | Newark, East (Barnett Shale) | Wise | 1 | 3.38K | 1.07M | Jun 2009 – Mar 2026 |
| Borders-Smith Unit 3 G-6-130724 | Anadarko E&P Onshore LLC only | Carthage (Cotton Valley) | Panola | 1 | 3.23K | 415K | Jan 1993 – Jan 2012 |
| Sealy & Smith Unit G-10-44095 | Anadarko Petroleum Corporation only | Halley (Devonian) | Winkler | 1 | 1.51K | 895K | Jan 1993 – Nov 2000 |
| Winnie Smith Unit G-13-232913 | Lime Rock Resources IV-a, L.P. only | Newark, East (Barnett Shale) | Denton | 1 | 1.49K | 361K | Oct 2007 – Apr 2026 |
| Myrl Smith Unit G-13-268758 | McCutchin Petroleum Corporation only | Newark, East (Barnett Shale) | Wise | 1 | 1.29K | 56.9K | Nov 2010 – Oct 2011 |
| Jordan-Smith Unit G-13-268617 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 1.08K | 321K | Sep 2012 – Apr 2018 |
| Sealy & Smith Unit G-10-44094 | Basin Oil & Gas Operating, LLC only | Halley (Devonian) | Winkler | 1 | 901 | 1.06M | Jan 1993 – Oct 2003 |
| Sealy & Smith Unit G-10-89224 | Anadarko Petroleum Corporation only | Halley (Devonian) | Winkler | 1 | 875 | 313K | Jan 1993 – Feb 1999 |
| Smith Unit G-13-195446 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 869 | 136K | Jan 2004 – Aug 2011 |
| Jordan-Smith Unit G-13-268591 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 814 | 131K | Sep 2012 – Aug 2018 |
| Hazel-Smith Unit G-13-248185 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Parker | 1 | 738 | 219K | Oct 2008 – Jan 2014 |
| Jordan-Smith Unit G-13-268371 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 693 | 151K | Sep 2012 – Aug 2018 |
| Sealy & Smith Unit G-10-44093 | Basin Oil & Gas Operating, LLC only | Halley (Devonian) | Winkler | 1 | 636 | 1.29M | Jan 1993 – May 2004 |
| Smith Unit G-2-166559 | Houston Hydrocarbons, Inc. (A) only | Bloomington (6000) | Victoria | 1 | 592 | 10.9K | Sep 1997 – Nov 1997 |
| Clyde Smith Unit G-13-294534 | BKV Barnett II, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 495 | 95.1K | Apr 2023 – Apr 2026 |
| Hazel-Smith Unit G-13-244802 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Parker | 1 | 426 | 250K | Oct 2008 – Feb 2013 |
| Smith Unit G-13-204292 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Parker | 1 | 178 | 419K | Sep 2004 – Aug 2009 |
| Sharp-Smith Unit G-6-207782 | TGNR Panola LLC only | Carthage (Cotton Valley) | Panola | 1 | 163 | 379K | Jan 2005 – Apr 2026 |
| Smith Unit G-2-141308 | Gillring Oil Company only | Bloomington (5950) | Victoria | 1 | 111 | 20.2K | Jan 1993 – Jun 1993 |
| Sharp-Smith Unit G-6-201966 | TGNR Panola LLC only | Carthage (Cotton Valley) | Panola | 1 | 54 | 807K | Apr 2004 – Apr 2026 |
| Sharp-Smith Unit G-6-215821 | TGNR Panola LLC only | Carthage (Cotton Valley) | Panola | 1 | 14 | 1.01M | Oct 2005 – Apr 2026 |
| Smith Unit G-14-281843 | Mewbourne Oil Company only | Pan Petro (Cleveland) | Ochiltree | 1 | 7 | 15.7K | Sep 2016 – Apr 2026 |
| Sharp-Smith Unit G-6-160082 | TGNR Panola LLC only | Carthage (Cotton Valley) | Panola | 1 | 4 | 1.32M | Aug 1996 – Aug 2023 |
| Sharp-Smith Unit G-6-230036 | TGNR Panola LLC only | Carthage (Cotton Valley) | Panola | 1 | 4 | 435K | Feb 2006 – Apr 2026 |
| Gery Smith Unit G-13-241501 | BKV North Texas, LLC only | Newark, East (Barnett Shale) | Johnson | 1 | 1 | 2.49M | May 2008 – Apr 2026 |
| Gery Smith Unit G-13-259095 | BKV North Texas, LLC only | Newark, East (Barnett Shale) | Johnson | 1 | 1 | 1.99M | Apr 2011 – Apr 2026 |
| Gery Smith Unit G-13-259096 | BKV North Texas, LLC only | Newark, East (Barnett Shale) | Johnson | 1 | 1 | 1.84M | Apr 2011 – Apr 2026 |
| Gery Smith Unit G-13-257401 | BKV North Texas, LLC only | Newark, East (Barnett Shale) | Johnson | 1 | 1 | 910K | Sep 2010 – Jan 2025 |
| Smith Unit G-14-282045 | Mewbourne Oil Company only | Buler, North (Morrow, Upper) | Ochiltree | 1 | 0 | 0 | — |
| O'Neal-Smith Unit G-2-245522 | Suncoast Technical Services Inc only | Hope, NE. (1100) | Lavaca | 1 | 0 | 28.7K | Dec 2007 – Oct 2009 |
| Ashbel Smith Unit G-3-230806 | Trek Resources, Inc. only | Goose Creek | Harris | 1 | 0 | 15K | Aug 2005 – Apr 2006 |
| Borders-Smith Unit 3 G-6-22940 | TGNR East Texas LLC only | Carthage (Blossom) | Panola | 1 | 0 | 421K | Jan 1993 – Dec 2020 |
| Borders-Smith Unit 3 G-6-30049 | Faulconer, Vernon E., Inc. only | Carthage (Pettit, Lower Gas) | Panola | 1 | 0 | 270K | Jan 1993 – Jan 1997 |
| Huffman-Smith Unit G-6-69023 | Sonat Exploration Company -Tyler only | Scottsville, North (Travis Peak) | Harrison | 1 | 0 | 0 | — |
| Sharp-Smith Unit G-6-85695 | Chevron U. S. A. Inc. only | Carthage (Cotton Valley) | Panola | 1 | 0 | 197K | Jan 1993 – Aug 2010 |
| Sharp-Smith Unit G-6-156205 | TGNR Panola LLC only | Carthage (Cotton Valley) | Panola | 1 | 0 | 1.26M | Oct 1995 – Jan 2019 |
| Borders-Smith Unit 3 G-6-188808 | Harleton Oil & Gas Inc. only | Carthage (Blossom) | Panola | 1 | 0 | 652K | Mar 2002 – Apr 2026 |
| Sharp-Smith Unit G-6-198598 | TGNR Panola LLC only | Carthage (Cotton Valley) | Panola | 1 | 0 | 986K | Oct 2003 – Apr 2026 |