| Chevron-Thunderbird #2 Gas Unit G-4-174010 | Single Barrel Oil and Gas LLC only | T-Bird (Queen City) | Jim Hogg | 1 | 109K | 4.12M | Jul 1999 – Aug 2026 |
| Chevron-Thunderbird #7 Gas Unit G-4-180274 | Single Barrel Oil and Gas LLC only | T-Bird (Queen City) | Jim Hogg | 1 | 86.9K | 3.15M | Nov 2000 – Aug 2026 |
| Singleton G-13-274033 | Incendium Resources LLC only | Newark, East (Barnett Shale) | Palo Pinto | 1 | 71.6K | 1.42M | Oct 2008 – Mar 2022 |
| Chevron-Thunderbird #4 Gas Unit G-4-181379 | Single Barrel Oil and Gas LLC only | T-Bird (Queen City) | Jim Hogg | 1 | 71K | 2.11M | Feb 2001 – Aug 2026 |
| Chevron-Thunderbird #1 Gas Unit G-4-173300 | Single Barrel Oil and Gas LLC only | T-Bird (Queen City) | Jim Hogg | 1 | 61.1K | 2.23M | Apr 1999 – Aug 2026 |
| Singleton G-13-274031 | Incendium Resources LLC only | Newark, East (Barnett Shale) | Palo Pinto | 1 | 54.8K | 1.79M | Nov 2008 – Jul 2016 |
| Thunderbird No. 4 Gas Unit G-4-183371 | Single Barrel Oil and Gas LLC only | T-Bird (Queen City) | Jim Hogg | 1 | 53.7K | 1.13M | May 2001 – Jan 2006 |
| Chevron-Thunderbird #3 Gas Unit G-4-175830 | Single Barrel Oil and Gas LLC only | T-Bird (Queen City) | Jim Hogg | 1 | 48.6K | 1.77M | Jan 2000 – Aug 2026 |
| Meadows-Singleton 4-89 MD CX G-14-287154 | Mmgl Txph, LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 46.8K | 6.09M | Jan 2019 – Aug 2026 |
| Gutierrez G-1-277786 | Single Barrel Oil and Gas LLC only | Sun T S H (Olmos) | La Salle | 1 | 40.3K | 679K | Jan 2013 – Aug 2026 |
| Singleton G-13-274030 | Arrowhead Productions, LP only | Newark, East (Barnett Shale) | Palo Pinto | 1 | 36.4K | 445K | Nov 2008 – Mar 2022 |
| Finger et al Unit G-2-263097 | Zachry Exploration, LLC only | Singleton (Pettus) | Bee | 1 | 28.8K | 78.5K | Mar 2012 – Sep 2014 |
| Chevron-Thunderbird #7 Gas Unit G-4-185502 | Single Barrel Oil and Gas LLC only | T-Bird (Queen City) | Jim Hogg | 1 | 23.6K | 878K | Oct 2001 – Aug 2026 |
| Chevron-Thunderbird #9 Gas Unit G-4-181430 | Single Barrel Oil and Gas LLC only | T-Bird (Queen City) | Jim Hogg | 1 | 17K | 221K | Mar 2001 – Dec 2011 |
| Chevron-Thunderbird #4 Gas Unit G-4-177647 | Single Barrel Oil and Gas LLC only | T-Bird (Queen City) | Jim Hogg | 1 | 14.7K | 1.4M | May 2000 – Aug 2026 |
| Chevron-Thunderbird #2 Gas Unit G-4-232248 | Single Barrel Oil and Gas LLC only | T-Bird (Queen City) | Jim Hogg | 1 | 12K | 895K | Oct 2007 – Aug 2026 |
| Singleton G-13-274032 | Arrowhead Productions, LP only | Newark, East (Barnett Shale) | Palo Pinto | 1 | 11.3K | 164K | Nov 2008 – Mar 2022 |
| Singleton G-13-276127 | Arrowhead Productions, LP only | Newark, East (Barnett Shale) | Palo Pinto | 1 | 9.75K | 79.6K | Nov 2008 – Mar 2022 |
| Singleton B G-13-275639 | Arrowhead Productions, LP only | Newark, East (Barnett Shale) | Palo Pinto | 1 | 8.96K | 316K | Feb 2009 – Oct 2015 |
| Singleton B G-13-275618 | Arrowhead Productions, LP only | Newark, East (Barnett Shale) | Palo Pinto | 1 | 6.3K | 193K | Feb 2009 – Apr 2017 |
| Singleton B G-13-275333 | Arrowhead Productions, LP only | Newark, East (Barnett Shale) | Palo Pinto | 1 | 4.96K | 273K | Feb 2009 – Jun 2016 |
| Long G-2-183653 | Enco Exploration Company only | Singleton (Hockley 3800) | Bee | 1 | 4.76K | 273K | Mar 2001 – Apr 2005 |
| Smith Gill Unit G-2-250401 | Kebo Oil & Gas, Inc. only | Singleton, E. (Wilson) | Bee | 1 | 4.45K | 49K | Jul 2009 – Mar 2015 |
| Meadows-Singleton 4-89 MD WX G-14-286452 | Mmgl Txph, LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 3.98K | 765K | Jan 2019 – Aug 2026 |
| Chevron-Thunderbird #1 Gas Unit G-4-238409 | Single Barrel Oil and Gas LLC only | T-Bird (Queen City) | Jim Hogg | 1 | 3.74K | 488K | Aug 2007 – Aug 2026 |
| Singleton B G-13-274854 | Arrowhead Productions, LP only | Newark, East (Barnett Shale) | Palo Pinto | 1 | 3.28K | 80.2K | Feb 2009 – Apr 2017 |
| Bear Creek Ranch G-2-143880 | Discovery Energy Corp. CC only | Singleton, E. (Hockley) | Bee | 1 | 3.16K | 166K | by Jan 1993 – May 1995 |
| Singleton, Joe G-8-190182 | Stovall Operating Co. only | Graford (Congl. 4150) | Palo Pinto | 1 | 2.61K | 83.2K | Aug 2002 – Apr 2005 |
| Culli G-2-237248 | Enco Exploration Company only | Singleton (Pettus) | Bee | 1 | 2.34K | 86.4K | May 2008 – Dec 2009 |
| Bear Creek Ranch G-2-149953 | Discovery Energy Corp. CC only | Singleton, E. (Pettus) | Bee | 1 | 1.81K | 121K | Mar 1994 – Jan 1996 |
| D. Martin Gas Unit G-2-168811 | Edge Petroleum Oper. Co., Inc. only | Singleton (Pettus) | Bee | 1 | 1.65K | 449K | Apr 1998 – May 2003 |
| Bear Creek Ranch G-2-157869 | Bellows Operating Co., L. C. only | Singleton, E. (Hockley) | Bee | 1 | 1.51K | 303K | Feb 1996 – May 1999 |
| Freeze G-2-167470 | Edge Petroleum Oper. Co., Inc. only | Singleton (Pettus) | Bee | 1 | 1.43K | 64K | Jan 1998 – Nov 2000 |
| Singleton, Joe G-8-259003 | Stovall Operating Co. only | M.E.S. (Ellenberger) | Palo Pinto | 1 | 874 | 50.9K | Sep 2010 – Jun 2023 |
| Culli G-2-173186 | Edge Petroleum Oper. Co., Inc. only | Singleton, E. (Pettus) | Bee | 1 | 832 | 72.8K | Oct 1998 – Feb 2000 |
| Singleton B G-13-275759 | Arrowhead Productions, LP only | Newark, East (Barnett Shale) | Palo Pinto | 1 | 814 | 69.1K | Nov 2008 – Mar 2022 |
| Singleton Gas Unit G-4-182456 | Teamco Operating LLC only | Portland, N. (Commonwealth Serie | San Patricio | 1 | 754 | 35.7K | Mar 2001 – Sep 2001 |
| Singleton G-13-201400 | DWP Oil & Gas only | Chico, East | Wise | 1 | 507 | 46.8K | Apr 2004 – Mar 2026 |
| Singletary Gas Unit No. 1 G-6-123453 | Urban Oil & Gas Group, LLC only | Alto (Travis Peak) | Cherokee | 1 | 393 | 462K | by Jan 1993 – Mar 2012 |
| Singleton, J. R. G-13-146239 | Richey, Ray Management Co., Inc. only | Boonsville (Bend Congl., Gas) | Wise | 1 | 380 | 109K | Aug 1993 – Dec 2012 |
| Singletary Gas Unit No. 1 G-6-235680 | Urban Oil & Gas Group, LLC only | Alto (Pettit) | Cherokee | 1 | 308 | 276K | Mar 2008 – Aug 2026 |
| Singleton, J. R. G-13-80344 | Richey, Ray Management Co., Inc. only | Boonsville (Bend Congl., Gas) | Wise | 1 | 285 | 91.1K | by Jan 1993 – Apr 2010 |
| Singleton, T. F. G-13-70202 | Sweetwater Drilling Co., Inc. only | Jack County Regular (Gas) | Jack | 1 | 162 | 127K | by Jan 1993 – Oct 2006 |
| B & D G-8-155361 | Triple Singleton, Inc. only | Shackelford County Regular (Gas) | Shackelford | 1 | 161 | 270K | Aug 1995 – Feb 2013 |
| Finger et al Unit G-2-282337 | Zachry Exploration, LLC only | Singleton (Hockley 3800) | Bee | 1 | 148 | 6.84K | Jan 2017 – Mar 2017 |
| Singleton, T. F. G-8-72261 | Upham Oil & Gas Company only | Palo Pinto Co. Reg. (Gas) | Palo Pinto | 1 | 28 | 57.5K | by Jan 1993 – May 2012 |
| Culli G-2-245526 | Enco Exploration Company only | Singleton (Hockley 3800) | Bee | 1 | 21 | 21K | Jan 2009 – May 2009 |
| Culli-McKay G-2-286049 | Chandler Oil & Gas, LLC only | Singleton (Pettus) | Bee | 1 | 19 | 3.45K | Jan 2019 – Mar 2019 |
| Long G-2-205535 | Enco Exploration Company only | Singleton (Pettus) | Bee | 1 | 5 | 44.6K | Jun 2004 – Sep 2004 |
| Ezzell G-8-193385 | Singleton Investments, Inc. only | Callahan County Regular (Gas) | Callahan | 1 | 0 | 0 | — |