| Kaycee State 57-3-33 Unit G-10-287433 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Reeves | 1 | 502K | 3.26M | Jul 2019 – Apr 2026 |
| Kaycee State 57-3-33 Unit G-10-287431 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Reeves | 1 | 466K | 3.55M | Aug 2019 – Apr 2026 |
| Kaycee State 57-3-33 Unit G-10-287432 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Reeves | 1 | 454K | 4.01M | Aug 2019 – Apr 2026 |
| Kaycee State 57-3-33 Unit G-10-283122 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Reeves | 1 | 450K | 3.17M | Feb 2017 – Mar 2026 |
| Kaycee 57-3-41 G-10-287519 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Reeves | 1 | 386K | 3.54M | Oct 2016 – Apr 2026 |
| Kaycee 57-3-45 G-10-278913 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Reeves | 1 | 239K | 1.95M | Nov 2016 – Dec 2025 |
| Kay-1893 B Ulw A G-2-299034 | Burlington Resources O & G Co LP only | Sugarkane (Eagle Ford) | Live Oak | 1 | 174K | 1.53M | Jun 2025 – Apr 2026 |
| Kay Unit A G-2-276921 | Burlington Resources O & G Co LP only | Sugarkane (Eagle Ford) | Live Oak | 1 | 134K | 2.23M | Oct 2014 – Apr 2026 |
| Kay a Unit G-13-273950 | EOG Resources, Inc. only | Newark, East (Barnett Shale) | Montague | 1 | 17.2K | 659K | May 2011 – Apr 2026 |
| McKay Creek "B" G-9-114645 | White Rock Oil & Gas, LLC only | McKay Creek (Caballos) | Terrell | 1 | 13.1K | 453K | Jan 1993 – Apr 2026 |
| McKay Creek "B" G-9-254851 | White Rock Oil & Gas, LLC only | McKay Creek (Caballos) | Terrell | 1 | 8.57K | 30.9K | Jan 2010 – Apr 2026 |
| McKay Creek "B" G-9-137587 | White Rock Oil & Gas, LLC only | McKay Creek (Caballos) | Terrell | 1 | 8.33K | 1.36M | Jan 1993 – Apr 2026 |
| McKay Creek "B" G-9-254854 | White Rock Oil & Gas, LLC only | McKay Creek (Caballos) | Terrell | 1 | 6.67K | 104K | Jan 2010 – Apr 2026 |
| McFaddin -B- G-2-136626 | Collins & Ware, Inc. only | Kay Creek (6075) | Victoria | 1 | 6.63K | 50.4K | Jan 1993 – Jan 1999 |
| McKay Creek "A" G-9-125223 | White Rock Oil & Gas, LLC only | McKay Creek (Caballos) | Terrell | 1 | 4.84K | 521K | Jan 1993 – Apr 2026 |
| McKay, G. D. GU 1 G-6-234522 | TGNR East Texas II LLC only | Waskom (Cotton Valley) | Harrison | 1 | 4.83K | 927K | Dec 2007 – Apr 2026 |
| Long-Culli-McKay Unit G-2-215258 | Enco Exploration Company only | SPM (Yegua 4650) | Bee | 1 | 3.41K | 183K | Sep 2005 – Sep 2008 |
| McKay Gas Unit G-6-238570 | TGNR East Texas II LLC only | Beckville (Cotton Valley) | Panola | 1 | 3.21K | 381K | Jun 2008 – Apr 2026 |
| McKay, B. F. G-13-104673 | Trek Resources, Inc. only | Park Springs (Congl.) | Wise | 1 | 2.69K | 298K | Jan 1993 – Apr 2026 |
| McKay Gas Unit G-6-223525 | CLR Secondary Recovery, LLC only | Beckville (Cotton Valley) | Panola | 1 | 2.51K | 463K | Nov 2006 – Nov 2023 |
| Kay, Ginger GU 1 G-6-210075 | Wallace Operating Company LLC only | Douglass, W. (Travis Peak) | Nacogdoches | 1 | 1.97K | 529K | Feb 2005 – Aug 2024 |
| Jillian Kay GU 1 G-6-250128 | Texian Operating Company, LLC only | Douglass, W. (Travis Peak) | Nacogdoches | 1 | 1.96K | 1.4M | Jul 2009 – Apr 2026 |
| McKay, G. D. GU 2 G-6-275490 | TGNR East Texas II LLC only | Waskom (Cotton Valley) | Harrison | 1 | 1.95K | 190K | Oct 2014 – Apr 2026 |
| Kay, Nancy G-13-192619 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 1.92K | 298K | Dec 2002 – Sep 2015 |
| McFaddin "B" G-2-183623 | Apache Corporation only | Kay Creek (5400) | Victoria | 1 | 1.7K | 11.7K | Apr 2001 – Jun 2001 |
| Kayser G-3-127968 | Daylight Petroleum LLC only | Lake Creek (Wilcox Consolidated) | Montgomery | 1 | 1.69K | 24K | Jan 1993 – Jun 1997 |
| Kathy Kay G-3-89179 | Great West Energy & Expl., Inc. only | Giddings (Austin Chalk, Gas) | Washington | 1 | 1.3K | 37.2K | Jan 1993 – Dec 1998 |
| Kohler, V. "A" G-4-155373 | KD Energy, LLC only | Kohler, NE. (Kayla) | Duval | 1 | 1.29K | 360K | Jun 1995 – Apr 2011 |
| McKay Gas Unit G-6-76491 | CLR Secondary Recovery, LLC only | Beckville (Cotton Valley) | Panola | 1 | 1.24K | 300K | Nov 2003 – Nov 2023 |
| Kay, Jana G-13-194058 | Peba Oil & Gas Co. only | Newark, East (Barnett Shale) | Montague | 1 | 1.13K | 3.39K | May 2005 – Oct 2005 |
| Clark, Lester/Kay, Eloise G-8-163918 | McClymond, Inc. only | Eloise Kay (Mississippian) | Stephens | 1 | 1.01K | 2.98K | Jun 1997 – May 1999 |
| McKay Creek "A" G-9-115930 | Cody Energy, Inc. only | McKay Creek (Caballos) | Terrell | 1 | 1K | 20.7K | Jan 1993 – May 1995 |
| Theresa Kay GU G-6-234579 | 84 Energy LLC only | Gates (Travis Peak) | Nacogdoches | 1 | 874 | 241K | Jan 2008 – Mar 2023 |
| Kayler Reese G-8-93405 | Jilpetco, Inc. only | Mineral Wells, S. (Congl) | Palo Pinto | 1 | 594 | 7.05K | Oct 1996 – Apr 2006 |
| Dunagan, Susan Kaye G-3-208437 | Camden Resources, Inc. only | Carroll (8600) | Liberty | 1 | 449 | 14.5K | Mar 2005 – Jul 2005 |
| McFaddin, J.A. G-2-198521 | Urban Oil & Gas Group, LLC only | Kay Creek (3500) | Victoria | 1 | 198 | 435K | Jul 2003 – Jan 2013 |
| McFaddin "A" G-2-137707 | Collins & Ware, Inc. only | Kay Creek (3300) | Victoria | 1 | 171 | 202K | Jan 1993 – Jun 1995 |
| Stancik, Janice Kay G-3-142139 | E P C Oil & Gas, Inc. only | Serbin (Taylor Sand) | Bastrop | 1 | 107 | 45.7K | Jan 1993 – Apr 2026 |
| McFaddin "A" G-2-131138 | Urban Oil & Gas Group, LLC only | Kay Creek (2950) | Victoria | 1 | 98 | 47.1K | Jan 1993 – Apr 1994 |
| McFaddin "B" G-2-188307 | Apache Corporation only | Kay Creek (2950) | Victoria | 1 | 45 | 234K | Jul 2001 – Apr 2005 |
| McFaddin "A' G-2-123873 | Apache Corporation only | Kay Creek (1750) | Victoria | 1 | 40 | 388K | Jan 1993 – Aug 2005 |
| McFaddin "A" G-2-133410 | Apache Corporation only | Kay Creek (2950) | Victoria | 1 | 37 | 639K | Jan 1993 – Feb 2001 |
| Kay G-10-94341 | Burleson, Lewis B. Inc. only | Belding, West (Yates) | Pecos | 1 | 29 | 14.6K | Jan 1993 – Nov 1994 |
| McFaddin "A" G-2-118290 | Apache Corporation only | Kay Creek (3200) | Victoria | 1 | 29 | 47.6K | Jan 1993 – Nov 1994 |
| McKay, G. D. GU 2 G-6-245591 | Samson Lone Star, LLC only | Carthage (Haynesville Shale) | Harrison | 1 | 27 | 379K | Jan 2009 – Sep 2014 |
| McKay G-2-283475 | Chandler Oil & Gas, LLC only | Beeville, W. (Hockley) | Bee | 1 | 23 | 3.88K | Aug 2017 – Oct 2017 |
| Culli-McKay G-2-286049 | Chandler Oil & Gas, LLC only | Singleton (Pettus) | Bee | 1 | 19 | 3.45K | Jan 2019 – Mar 2019 |
| G.D. McKay HV Unit H G-6-290761 | TGNR East Texas II LLC only | Carthage (Haynesville Shale) | Harrison | 1 | 16 | 8.97M | Nov 2020 – Apr 2026 |
| McFaddin "A" G-2-167850 | Apache Corporation only | Kay Creek (3100) | Victoria | 1 | 9 | 254K | Mar 1998 – Feb 2000 |
| Enserch - Kay G-8-118122 | Crystal River Oil & Gas LLC only | Ringo (Strawn) | Palo Pinto | 1 | 8 | 35.3K | Jan 1993 – Aug 2015 |