| Alexander, Kathleen Jones O-4-7985 | Nylo Oil & Gas LLC only | Palo Blanco | Brooks | 3 | 74.5K | 21 | by Jan 1993 – May 2025 |
| Alexander, Kathleen Jones O-1-3735 | Jaybird Operating, LLC only | Floresville, E. (Poth B 2800) | Wilson | 5 | 73K | 609 | by Jan 1993 – Jul 2026 |
| Robeson, F. T. O-10-17824 | Bralex Operating LLC only | Shipley (Glorieta) | Ward | 4 | 71.3K | 132K | by Jan 1993 – Aug 2026 |
| Shell-Alexander O-10-33812 | Thompson, J. Cleo only | Zebulon, North (Fusselman) | Howard | 1 | 71.2K | 17 | May 1993 – Mar 2000 |
| Steele O-6-12264 | Brookston Energy, Inc. only | Waskom (Alexander Sand) | Harrison | 1 | 71.1K | 369K | by Jan 1993 – Dec 2019 |
| Alexander-Searcy Unit O-8-15887 | Petex only | Stephens County Regular | Stephens | 1 | 70.6K | 46 | by Jan 1993 – Aug 2026 |
| Alexander O-14-4908 | Sutherland Energy Co., LLC only | Hansford(kinderhook) | Hansford | 1 | 68.1K | 20.3K | by Jan 1993 – Feb 2026 |
| State Tract 721-L S/2 NE/4 G-4-195888 | Gryphon Exploration Company only | Alexandre (Cib Haz 3) | Matgrda IS-LB | 1 | 66.9K | 6.03M | May 2003 – Mar 2007 |
| Alexander Trust "N" O-11-60827 | Patton Exploration, Inc. only | Croton (Tannehill) | King | 6 | 65.6K | 20 | by Jan 1993 – Mar 2016 |
| Alexander "A" O-5-3793 | Kilmarnock Oil Company, Inc. only | Powell | Navarro | 2 | 62.3K | 0 | Nov 2004 – Aug 2026 |
| Jobe O-6-12950 | Brookston Energy, Inc. only | Waskom (Alexander Sand) | Harrison | 2 | 60.6K | 137K | by Jan 1993 – May 2021 |
| Alexander, J. H. O-7-7153 | Basa Resources, Inc. only | East Texas | Gregg | 1 | 59.1K | 38.3K | by Jan 1993 – Aug 2026 |
| Alexander 48 G-14-267323 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 57.9K | 2.93M | May 2012 – Aug 2026 |
| Alexander Heirs Gas Unit G-6-267165 | Sabine Energy Inc. only | Henderson, E. (Cotton Valley) | Rusk | 1 | 57.2K | 4.18M | Jul 2012 – Aug 2026 |
| Alexander O-9-13511 | Bowerman Oil & Gas, Inc. only | Speck, SE. (King) | Concho | 2 | 55.6K | 13K | Sep 1993 – Apr 2026 |
| Alexander-Odc O-14-3199 | Hamman Oil & Refining Company only | Clementine (Morrow, Upper) | Hansford | 2 | 54.5K | 494K | by Jan 1993 – Apr 2020 |
| Alexander O-10-34122 | Ozark Exploration, Inc. only | Varel, West (Fusselman) | Howard | 1 | 53.4K | 8 | Feb 1994 – Aug 2026 |
| Elliott, R.B. "9" O-8-27472 | DP2, LLC only | Alexandria (Gardner SD A) | Shackelford | 6 | 53.3K | 149K | Jan 1995 – Oct 2014 |
| Goetze, Lena & Freda O-13-5423 | Alexander Oil Properties LLC only | Wichita County Regular | Wichita | 61 | 51.8K | 198 | by Jan 1993 – Nov 2024 |
| Alexander G-14-260548 | Unbridled Resources, LLC only | Washita Creek (Granite Wash) | Hemphill | 1 | 48.7K | 2.03M | Mar 2011 – Aug 2026 |
| Stephenson O-6-12817 | Shelby Operating Company only | Waskom (Alexander Sand) | Harrison | 1 | 47.6K | 336K | by Jan 1993 – Apr 2011 |
| Alexander Unit 48 O-10-43786 | New Height Energy, LLC only | Spraberry (Trend Area) | Howard | 1 | 46.2K | 203K | Feb 2013 – Jun 2026 |
| Alexander O-13-28459 | Gruy Petroleum Management Co. only | Fargo, W. (Strawn Conglomerate) | Wilbarger | 1 | 43.1K | 31 | by Jan 1993 – Apr 1997 |
| Alexander O-9-13021 | Armor Petroleum, Inc. only | Speck, SE. (King) | Concho | 1 | 42.9K | 190K | by Jan 1993 – Nov 2005 |
| Alexander 33 G-14-268169 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 42.6K | 2.49M | Nov 2012 – Aug 2026 |
| Alexander O-11-65327 | Double Barrel Oil LLC only | Levelland | Cochran | 2 | 41.9K | 2.01K | by Jan 1993 – Aug 2026 |
| Alexander G-14-272248 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 40.7K | 1.89M | Jul 2013 – Aug 2026 |
| Alexander Estate "A" O-11-15358 | Patton Exploration, Inc. only | Reutinger (Tannehill, Upper) | King | 5 | 40K | 20 | by Jan 1993 – Jun 2009 |
| Alexander, E.C. O-1-6386 | Centex Pipe & Equipment, Inc. only | Buchanan | Caldwell | 12 | 39.9K | 80.5K | by Jan 1993 – Apr 2023 |
| Alexander, Joab O-11-63352 | Formentera Operations LLC only | Levelland | Cochran | 1 | 39.8K | 140 | by Jan 1993 – Aug 2026 |
| Alexander, O.W. G-6-246830 | TGNR Panola LLC only | Carthage (Travis Peak) | Panola | 1 | 38.2K | 1.07M | Nov 2008 – Jan 2021 |
| Alexander O-8-25232 | Arcadian Mineral Development,llc only | Brown County Regular | Brown | 5 | 37.6K | 34.3K | by Jan 1993 – Jul 2026 |
| Alexander O-11-61856 | S.B. Street Operating, Inc. only | Buggs (Tannehill) | King | 3 | 36.5K | 9 | by Jan 1993 – Sep 2013 |
| McFall-Kerby O-2-6738 | Halex Oil Corporation only | Rudman, West (Jackson Sand) | Bee | 2 | 36.4K | 17.3K | by Jan 1993 – Mar 2005 |
| Alexander, J.D. O-5-4027 | Valence Operating Company only | Como (Rodessa Hill, Lo.) | Wood | 1 | 35.7K | 70.5K | Jan 2014 – Aug 2026 |
| Alexander G-14-266959 | Unbridled Resources, LLC only | Washita Creek (Granite Wash) | Hemphill | 1 | 35.1K | 1.48M | Mar 2012 – Jan 2023 |
| State Alexandra 14-11 G-10-279176 | Capitan Energy, Incorporated only | Ford, West (Wolfcamp) | Culberson | 1 | 33.9K | 713K | Apr 2015 – Nov 2023 |
| Alexander Ranch O-8-29696 | Clear Fork, Incorporated only | Oley's Creek (Miss) | Stonewall | 1 | 33.5K | 0 | Mar 2006 – Aug 2026 |
| Alexander G-14-271779 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 32.7K | 1.8M | Nov 2013 – Aug 2026 |
| Mitchell, Alex 1 G-9-191350 | White Rock Oil & Gas, LLC only | Deer Canyon (Penn) | Terrell | 1 | 32.1K | 5.82M | Aug 2002 – Aug 2026 |
| Alexander O-5-2696 | Kilmarnock Oil Company, Inc. only | Corsicana (Shallow) | Navarro | 2 | 32K | 21 | by Jan 1993 – Feb 2025 |
| Cooper O-11-64986 | Alexander Resources, Inc. only | Alexander (Wolfcamp) | Terry | 1 | 31.8K | 21 | by Jan 1993 – Dec 2006 |
| Vaughn "B" O-6-12733 | Exco Operating Company, LP only | Waskom (Alexander Sand) | Harrison | 1 | 31.6K | 48.5K | by Jan 1993 – Aug 2007 |
| Alexander, D. R. O-11-19469 | Quatro Oil and Gas, Inc. only | Dorward | Garza | 3 | 31.5K | 189 | by Jan 1993 – Aug 2026 |
| Mitchell, Alex 2 G-9-155852 | White Rock Oil & Gas, LLC only | Deer Canyon (Strawn) | Terrell | 1 | 31.4K | 1.13M | Apr 1995 – Aug 2026 |
| Alexander "B" O-13-24333 | Perry Operating Inc. only | Graham, North (Strawn 3450) | Young | 3 | 31.2K | 5.4K | by Jan 1993 – Aug 2026 |
| Alexander 48 G-14-268207 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 31.1K | 1.66M | Nov 2012 – Aug 2026 |
| Alexander, F. W. O-8-3277 | JNS Production, LLC only | Shackelford County Regular | Shackelford | 22 | 30K | 19 | by Jan 1993 – Jul 2026 |
| Alexander Heirs Gas Unit G-6-246287 | Sabine Energy Inc. only | Henderson, E. (Cotton Valley) | Rusk | 1 | 29.5K | 896K | Jul 2008 – Aug 2026 |
| Alexander G-14-262854 | Unbridled Resources, LLC only | Washita Creek (Granite Wash) | Hemphill | 1 | 29.2K | 1.73M | Aug 2011 – Aug 2026 |