| Alexander Ranch G-13-250383 | BKV Barnett II, LLC only | Newark, East (Barnett Shale) | Parker | 1 | 1.5K | 1.54M | Jan 2009 – Aug 2026 |
| Born, Alex "F" G-14-164695 | Complete Oil & Gas Services, LLC only | Lipscomb (Douglas) | Lipscomb | 1 | 1.5K | 993K | Jul 1997 – Feb 2004 |
| Alexander, C. D. O-1-3388 | R & S Oil Production Co. only | Bateman (Austin Chalk) | Bastrop | 1 | 1.49K | 0 | Sep 1995 – Apr 2022 |
| Alexander, Charles G-4-194080 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 1.48K | 723K | Feb 2003 – Feb 2020 |
| Alexander, R. J. G-13-28553 | BKV Barnett, LLC only | Boonsville (Bend Congl., Gas) | Wise | 1 | 1.48K | 377K | by Jan 1993 – Aug 2026 |
| Alexander, Charles G-4-169871 | Columbus Energy, LLC only | Bashara-Hereford (7300) | Webb | 1 | 1.47K | 597K | Aug 1998 – Mar 2015 |
| Born, Alex -E- G-14-41528 | Latigo Petroleum, LLC only | Lipscomb (Cleveland) | Lipscomb | 1 | 1.44K | 313K | by Jan 1993 – Apr 2004 |
| Alexander Heirs Gas Unit G-6-246296 | Forest Oil Corporation only | Henderson, E. (Cotton Valley) | Rusk | 1 | 1.41K | 129K | Dec 2008 – Jun 2013 |
| Duncan G-3-116193 | Alexander, Herbert R. Inc. only | Egypt (7200) | Wharton | 1 | 1.4K | 225K | by Jan 1993 – Aug 1996 |
| Alexander Heirs Gas Unit G-6-233168 | Sabine Energy Inc. only | Henderson, E. (Cotton Valley) | Rusk | 1 | 1.37K | 108K | Sep 2007 – Dec 2011 |
| Alexander, W.T. O-13-28399 | CD Consulting & Operating Co. only | Park Springs (Congl.) | Wise | 2 | 1.37K | 27.1K | by Jan 1993 – Mar 2009 |
| Alexander Ranch G-13-241014 | Enervest Operating, L.L.C. only | Newark, East (Barnett Shale) | Parker | 1 | 1.35K | 628K | Jun 2008 – Mar 2011 |
| Alexander, Kathleen Jones -P- O-4-2043 | Nylo Oil & Gas LLC only | Palo Blanco | Brooks | 2 | 1.35K | 19 | by Jan 1993 – Apr 2001 |
| Charles Alexander C G-4-169267 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 1.32K | 808K | Jul 1998 – Aug 2026 |
| Corman-Hudgins G-3-216461 | Mountain V Texas, LLC only | Bob Alexander (Massive Wilcox) | Wharton | 1 | 1.32K | 2.99M | Aug 2005 – Jul 2026 |
| Born, Alex et Al G-14-208989 | Latigo Petroleum, LLC only | Lipscomb (Cleveland) | Lipscomb | 1 | 1.3K | 540K | Oct 2004 – Feb 2024 |
| Alexander 8 G-14-203961 | Amarillo Exploration, Inc. only | Clementine (Novi) | Hansford | 1 | 1.28K | 236K | Aug 2004 – May 2012 |
| Alexander G-4-169028 | Hilcorp Energy Company only | Roleta (Wilcox Consolidated) | Zapata | 1 | 1.26K | 862K | Apr 1998 – Jun 2020 |
| Alexander, O.W. G-6-233657 | TGNR Panola LLC only | Carthage (Travis Peak) | Panola | 1 | 1.21K | 1.68M | Nov 2007 – May 2020 |
| Alexander G-4-176032 | Ricochet Energy, Inc. only | Ortiz (Lobo) | Webb | 1 | 1.2K | 142K | Nov 1999 – Jan 2000 |
| Alexander O-1-8691 | Alexander, W. B. only | Salt Flat, West | Caldwell | 1 | 1.19K | 1.03K | by Jan 1993 – Aug 1996 |
| Alexander G-14-52311 | EOG Resources, Inc. only | Beal (Morrow Lower) | Lipscomb | 1 | 1.18K | 561K | by Jan 1993 – May 2007 |
| Alexander, M.M. G-4-139352 | Michael Petroleum Corporation only | Ortiz (Lobo) | Webb | 1 | 1.14K | 299K | by Jan 1993 – Jun 1994 |
| Alexander, Sarah E. O-13-15268 | WFW Production Company, Inc. only | Cooke County Regular | Cooke | 1 | 1.14K | 234 | by Jan 1993 – Nov 2020 |
| Johnson-Telg Uhit O-3-13095 | Alexander Energy Corporation only | Giddings (Austin Chalk-3) | Burleson | 1 | 1.12K | 10.1K | by Jan 1993 – Mar 1994 |
| Charles, Alexander G-4-289709 | Hilcorp Energy Company only | La Perla (Wilcox 6800) | Zapata | 1 | 1.1K | 877K | May 2016 – Aug 2026 |
| Alexander Heirs Gas Unit G-6-237202 | Sabine Energy Inc. only | Henderson, E. (Cotton Valley) | Rusk | 1 | 1.09K | 174K | Jun 2008 – May 2013 |
| Alexander-Burt O-3-2415 | Radius Operating, LLC only | Humble | Harris | 2 | 1.09K | 38 | Apr 1993 – Apr 2014 |
| Lagrone-Alexander G-6-218987 | Chevron U. S. A. Inc. only | Carthage (Pettit, Lower) | Panola | 1 | 1.08K | 61.5K | Aug 2005 – Feb 2012 |
| Alexander, Charles G-4-195590 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 1.07K | 1.38M | May 2003 – Aug 2026 |
| Born, Alex "F" G-14-189871 | Latigo Petroleum, LLC only | Bradford, S.E. (Atoka) | Lipscomb | 1 | 1.02K | 185K | Sep 2000 – Aug 2026 |
| Alexander G-4-269511 | Dewbre Petroleum Corporation only | Big Caesar, SE. (H-94) | Kleberg | 1 | 997 | 189K | Mar 2014 – Oct 2016 |
| Alexander Heirs Unit O-6-15212 | Sabine Oil & Gas Corporation only | Henderson (Rusk Co. Pettit) | Rusk | 1 | 986 | 19.7K | Jul 2013 – Oct 2018 |
| Alexander G-14-78053 | Mmgl Txph, LLC only | Washita Creek, West (Morrow UP) | Hemphill | 1 | 982 | 1.51M | by Jan 1993 – Jul 2026 |
| Alexander, Toni G-5-281872 | Diversified Production LLC only | Personville (Travis Peak) | Limestone | 1 | 963 | 1.34M | Sep 2016 – Aug 2026 |
| Alex Gas Unit 1 G-6-234424 | Wallace Operating Company LLC only | Red Land,north (Travis Peak) | Nacogdoches | 1 | 936 | 716K | Dec 2007 – Jul 2022 |
| Born, Alex "B" G-14-168602 | Latigo Petroleum, LLC only | Bradford (Morrow Lower) | Lipscomb | 1 | 930 | 1.41M | Apr 1998 – Mar 2003 |
| Alexander, R. J. G-13-109651 | BKV Barnett, LLC only | Boonsville (Bend Congl., Gas) | Wise | 1 | 924 | 834K | by Jan 1993 – Jul 2023 |
| Alexander, J. H. -B- O-7-6247 | Rusk Co. Well Service Co., Inc. only | East Texas | Gregg | 3 | 909 | 18 | by Jan 1993 – Oct 1996 |
| Alexander G-4-218270 | Hilcorp Energy Company only | Roleta (Wilcox Consolidated) | Zapata | 1 | 872 | 1.41M | Nov 2005 – Aug 2026 |
| Alex Ramey Unit 1 G-4-141943 | Western Gulf Oil & Gas Inc. only | Cano-Mexico (6530) | Hidalgo | 1 | 868 | 348K | by Jan 1993 – Oct 1997 |
| Alexander, Geneva Furrh et Al G-6-210035 | Diversified Production LLC only | Carthage (Travis Peak) | Panola | 1 | 866 | 254K | Mar 2005 – Aug 2026 |
| Alexander Helen C et Al G-13-240621 | BKV Barnett II, LLC only | Newark, East (Barnett Shale) | Tarrant | 1 | 863 | 3.42M | Aug 2007 – Aug 2026 |
| Dugie, Alex O-2-7064 | Pioneer Natural Res. USA, Inc. only | Person (Edwards) | Karnes | 1 | 855 | 5.77K | by Jan 1993 – Apr 1995 |
| Alexander Heirs Gas Unit G-6-216277 | Forest Oil Corporation only | Henderson, E. (Cotton Valley) | Rusk | 1 | 848 | 64.3K | Nov 2005 – Feb 2007 |
| Alexander Ranch G-13-259797 | BKV Barnett II, LLC only | Newark, East (Barnett Shale) | Parker | 1 | 839 | 2.05M | Sep 2010 – Aug 2026 |
| Mitchell, Alex 1 G-9-188160 | Conocophillips Company only | Deer Canyon (Strawn) | Terrell | 1 | 827 | 75.8K | Jan 2002 – Jul 2002 |
| Alexander Ranch G-13-250382 | BKV Barnett II, LLC only | Newark, East (Barnett Shale) | Parker | 1 | 798 | 1.89M | Mar 2009 – Aug 2026 |
| Alexander, Charles G-4-196110 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 790 | 915K | Mar 2003 – Aug 2026 |
| Corman-Hudgins G-3-216197 | Mountain V Texas, LLC only | Bob Alexander (Massive Wilcox) | Wharton | 1 | 772 | 209K | Jan 2006 – Jul 2026 |