| Alexander, Geneva Furrh et Al G-6-142660 | Diversified Production LLC only | Carthage (Travis Peak-Allison) | Panola | 1 | 4.49K | 1.15M | by Jan 1993 – Feb 2017 |
| Alexander, Charles G-4-145832 | Hilcorp Energy Company only | Bashara-Hereford (7300) | Zapata | 1 | 4.44K | 6.78M | Jun 1993 – Aug 2026 |
| Alexander, R. J. G-13-141482 | BKV Barnett, LLC only | Boonsville (Bend Congl., Gas) | Wise | 1 | 4.43K | 1.17M | by Jan 1993 – Aug 2026 |
| Born, Alex "B" G-14-204112 | Latigo Petroleum, LLC only | Lipscomb (Cleveland) | Lipscomb | 1 | 4.41K | 792K | Apr 2004 – Aug 2026 |
| Alexander, Charles G-4-192783 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 4.25K | 2.77M | Oct 2002 – Aug 2026 |
| Alexander 48 G-14-239150 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 4.14K | 502K | Jun 2008 – Jun 2020 |
| Alexander, Charles D. G-4-60110 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 4.09K | 952K | by Jan 1993 – Aug 2026 |
| Alexander, Charles G-4-200081 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 4.06K | 996K | Nov 2003 – Aug 2026 |
| Alexander O-13-31260 | Extech Operating, LLC only | Gilley, W. (Atoka Congl.) | Wise | 1 | 4.04K | 311K | Mar 2009 – Aug 2026 |
| Menzies, Alex O-9-12719 | Flag Energy, LLC only | Wilhelm Lane (Goen) | Menard | 1 | 3.98K | 34 | by Jan 1993 – Oct 2009 |
| Alexander, Cuba Gas Unit G-6-221840 | Largo Oil Company only | Minden (Cotton Valley Cons.) | Rusk | 1 | 3.97K | 766K | Jun 2006 – Aug 2026 |
| Mitchell, Alex 1 G-9-163740 | White Rock Oil & Gas, LLC only | Pakenham (Upper Strawn) | Terrell | 1 | 3.89K | 140K | Apr 1997 – Jan 1999 |
| Alexander, Cuba Gas Unit G-6-216515 | Wagner Oil Company only | Minden (Cotton Valley Cons.) | Rusk | 1 | 3.86K | 543K | Dec 2005 – Mar 2014 |
| Alexander O-1-3612 | Petrosaurus, Inc. only | Buchanan | Caldwell | 4 | 3.85K | 21 | by Jan 1993 – Aug 2021 |
| Alexander, Mack O-11-62594 | Wheeler Operating Corporation only | Slaughter | Hockley | 2 | 3.75K | 2.15K | by Jan 1993 – May 1997 |
| Alexander G-14-254304 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 3.75K | 438K | Sep 2009 – Oct 2024 |
| Alexander,c. O-1-17563 | Alexander Royalty Company only | Bateman (Austin Chalk) | Bastrop | 7 | 3.75K | 0 | Jun 2014 – Aug 2026 |
| Alexander "A" O-8-30613 | 5L Properties, Inc. only | Jones County Regular | Jones | 1 | 3.65K | 0 | Jul 2010 – May 2020 |
| Ramey, Alex G-4-148982 | Fina Oil & Chemical Company only | Cano-Mexico (5100) | Hidalgo | 1 | 3.63K | 608K | Feb 1994 – Aug 1996 |
| Sneed-Bookout O-6-12142 | Alexander Energy Corporation only | Bethany (Page Sand) | Harrison | 1 | 3.63K | 13.8K | by Jan 1993 – Jun 1995 |
| Alexander, Charles G-4-191817 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 3.6K | 2.16M | Sep 2002 – Mar 2021 |
| Alexander Unit 1 G-6-129947 | TGNR East Texas LLC only | Carthage (Cotton Valley) | Panola | 1 | 3.55K | 1.08M | by Jan 1993 – Aug 2026 |
| Alexander G-14-245613 | Resource Oil and Gas, LLC only | Washita Creek (Granite Wash) | Hemphill | 1 | 3.49K | 358K | Nov 2008 – Aug 2026 |
| Alexander 48 G-14-250107 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 3.47K | 556K | May 2009 – Jan 2024 |
| Warmack G-6-170008 | Winchester Production Company only | Waskom (Alexander Sand) | Harrison | 1 | 3.39K | 12.1K | Jul 1998 – Sep 1999 |
| Alexander, Charles A. G-4-75728 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 3.36K | 1.01M | by Jan 1993 – Sep 2017 |
| Currie G-6-171838 | Superior Royalty, LLC only | Waskom (Alexander Sand) | Harrison | 1 | 3.33K | 133K | Jan 1999 – Oct 2010 |
| Alexander, Cuba Gas Unit G-6-81249 | Wagner Oil Company only | Minden (Cotton Valley Cons.) | Rusk | 1 | 3.33K | 390K | by Jan 1993 – Jul 2015 |
| Currie O-6-13659 | Winchester Production Company only | Waskom (Alexander Sand) | Harrison | 1 | 3.31K | 39.9K | Apr 1997 – Dec 1998 |
| ZX-Regal-Alexander O-11-65699 | Rogers, S. K. Oil, Inc. only | Levelland | Cochran | 1 | 3.27K | 100 | by Jan 1993 – May 2001 |
| Minor Alexander O-8-25745 | Bridwell Oil Co. only | Alexander (Canyon 4300) | Stonewall | 1 | 3.24K | 809 | by Jan 1993 – Jan 1998 |
| Alexander Trust Lease O-13-33828 | Legacy Exploration, LLC I only | Post Oak, W. (Ellen.) | Jack | 1 | 3.17K | 52.4K | Sep 2017 – Jul 2022 |
| Alexander O-9-6158 | Stephens, Autry C. only | Calvin (Dean) | Reagan | 1 | 3.16K | 10.6K | by Jan 1993 – Oct 1995 |
| Rathmell-Alexander Gas Unit G-4-160318 | Hilcorp Energy Company only | Exsun (Lobo Cons.) | Zapata | 1 | 3.16K | 5.49M | May 1996 – Aug 2026 |
| Alexander, Geneva Furrh et Al G-6-146187 | Devon Louisiana Corporation only | Gales (6500 Travis Peak) | Panola | 1 | 3.07K | 393K | Aug 1993 – Dec 2004 |
| Born, Alex "F" G-14-162704 | Complete Oil & Gas Services, LLC only | Stabel (Lower Morrow) | Lipscomb | 1 | 3.04K | 252K | Sep 1996 – Apr 2003 |
| Alexander, Charles C G-4-196413 | Columbus Energy, LLC only | Bashara-Hereford (7300) | Webb | 1 | 3.03K | 130K | Jul 2003 – Nov 2015 |
| Meier, Alex, B O-14-3327 | Wright Trucking, Inc. only | Darrouzett (Tonkawa) | Lipscomb | 1 | 3K | 107 | Feb 1996 – Jul 2000 |
| Alexander, Geneva Furrh et Al G-6-154440 | Seagull Energy E&P Inc. only | Carthage (Cotton Valley) | Panola | 1 | 2.97K | 322K | Jul 1995 – Apr 1999 |
| Alexander, F. W. 'D' O-8-31053 | JNS Production, LLC only | Shackelford County Regular | Shackelford | 1 | 2.94K | 0 | Aug 2012 – Jul 2026 |
| Alexander Heirs Gas Unit G-6-237721 | Sabine Energy Inc. only | Henderson, E. (Cotton Valley) | Rusk | 1 | 2.93K | 242K | May 2008 – Feb 2013 |
| Alexander, Cuba Gas Unit G-6-217826 | Largo Oil Company only | Minden (Cotton Valley Cons.) | Rusk | 1 | 2.89K | 606K | Jan 2006 – Aug 2026 |
| Alexander Heirs Gas Unit G-6-237848 | Sabine Energy Inc. only | Henderson, E. (Cotton Valley) | Rusk | 1 | 2.77K | 336K | Jun 2008 – Apr 2017 |
| Born, Alex "E" G-14-158552 | Complete Oil & Gas Services, LLC only | Lipscomb (Cleveland) | Lipscomb | 1 | 2.71K | 471K | Apr 1996 – Jun 2011 |
| Alexander, W. T. G-13-224175 | Scout Energy Management LLC only | Alvord (Atoka Conglomerate) | Wise | 1 | 2.69K | 141K | Sep 2006 – Aug 2026 |
| Born, Alex "B" G-14-169957 | Latigo Petroleum, LLC only | Lipscomb (Cleveland) | Lipscomb | 1 | 2.64K | 710K | Feb 1998 – Aug 2026 |
| Alexander-Mandel G-4-251896 | Hilcorp Energy Company only | Roleta (Wilcox Consolidated) | Zapata | 1 | 2.61K | 2.85M | Aug 2009 – Aug 2026 |
| Alexander Heirs Gas Unit G-6-237916 | Sabine Energy Inc. only | Henderson, E. (Cotton Valley) | Rusk | 1 | 2.57K | 204K | Apr 2008 – Aug 2012 |
| Alexander "B" O-1-11349 | Higher Standard Oil Company,inc. only | Plum Creek, N. (Dale Lime) | Caldwell | 1 | 2.56K | 39 | Nov 1993 – May 2014 |
| Alexander, Charles G-4-169404 | Columbus Energy, LLC only | Bashara-Hereford (7300) | Webb | 1 | 2.52K | 2.45M | Jul 1998 – Aug 2026 |