| Alexander, J. H. O-6-15743 | Sydri Operating, LLC only | Willow Springs (Travis Peak) | Gregg | 1 | 15.5K | 109K | Jan 2020 – Aug 2026 |
| Alexander 33 G-14-269793 | Presidio Petroleum LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 15.2K | 891K | May 2013 – Aug 2026 |
| Alexander, Charles G-4-166543 | Columbus Energy, LLC only | Bashara-Hereford (7300) | Webb | 1 | 15K | 1.37M | Dec 1997 – Aug 2007 |
| Alexander, J. W. O-6-12800 | Basa Resources, Inc. only | Deberry, N. (Travis Peak 6200) | Panola | 1 | 14.9K | 174K | by Jan 1993 – Mar 2014 |
| Alexander O-8-32128 | 5L Properties, Inc. only | Lueders, S. (King Sand) | Jones | 2 | 14.8K | 0 | May 2017 – Aug 2026 |
| Alexander, L. O-7-6608 | Miken Oil, Inc. only | East Texas | Gregg | 2 | 14.6K | 5.89K | by Jan 1993 – Jul 2012 |
| Alexander, F. W., -B- O-8-3298 | JNS Production, LLC only | Shackelford County Regular | Shackelford | 5 | 14.2K | 8 | by Jan 1993 – Jul 2026 |
| Alexander, Maureen G-4-246600 | Mountain V Texas, LLC only | Urebeno, South (Lobo Cons.) | Zapata | 1 | 14.1K | 4.97M | Aug 2008 – Mar 2026 |
| Alexander Unit 66 G-14-290618 | Presidio Petroleum LLC only | Lipscomb, S.E. (Cleveland) | Hemphill | 1 | 14K | 141K | Jan 2019 – Aug 2026 |
| Fite O-3-24316 | Halex Oil Corporation only | Sandy Point | Brazoria | 1 | 13.9K | 1.5K | Aug 2002 – Oct 2013 |
| Alexander O-11-10899 | Shenandoah Petroleum Corporation only | Ropes, West (Cisco Sand) | Hockley | 1 | 13.9K | 14.2K | by Jan 1993 – May 2002 |
| Alexander O-10-29380 | Pearce, Roy F., Jr. only | Jess Burner (Delaware 3800) | Reeves | 2 | 13.3K | 138 | by Jan 1993 – Mar 2017 |
| Alexis Unit G-13-273406 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Montague | 1 | 13.1K | 1.16M | May 2011 – Aug 2026 |
| Marders, Gordon O-10-19827 | Bralex Operating LLC only | Shipley (Glorieta) | Ward | 2 | 12.5K | 33K | by Jan 1993 – Aug 2026 |
| Alexander, Hugh, R/a -B- O-7-6216 | Southlake Operating LLC only | East Texas | Rusk | 6 | 12.4K | 7.56K | by Jan 1993 – Jul 2003 |
| Alexander -A- O-10-15915 | Pearce, Roy F., Jr. only | Screwbean, NE. (Delaware) | Reeves | 2 | 12.3K | 1.6K | by Jan 1993 – Jun 2017 |
| Alexander O-10-25962 | Bald Eagle Operating Inc. only | Block a-34 (Yates) | Andrews | 3 | 11.9K | 140K | by Jan 1993 – Dec 2025 |
| Alexander, Geneva Furrh et Al G-6-222277 | Diversified Production LLC only | Carthage (Cotton Valley) | Panola | 1 | 11.9K | 841K | Apr 2006 – Aug 2026 |
| Alexander O-1-7975 | Alexander Royalty Company only | Bateman (Austin Chalk) | Bastrop | 5 | 11.9K | 91 | by Jan 1993 – Aug 2026 |
| Ramey, Alex Unit 1 G-4-80633 | BXP Operating, LLC only | Cano-Mexico (6000) | Hidalgo | 1 | 11.9K | 1.06M | by Jan 1993 – Feb 2001 |
| Barbara Alexander G-6-146054 | Shoco Production, L.P. only | Willow Springs (Cotton Valley) | Gregg | 1 | 11.6K | 2.2M | Jun 1993 – Mar 2019 |
| Alexander, Charles G-4-166000 | Columbus Energy, LLC only | Bashara-Hereford (7300) | Webb | 1 | 11.5K | 59.3K | Dec 1997 – Oct 2012 |
| Alexander Heirs Gas Unit O-6-15196 | Sabine Energy Inc. only | Henderson (Rusk Co. Pettit) | Rusk | 2 | 11.5K | 121K | Feb 2013 – Feb 2022 |
| Born, Alex et al -B- G-14-111112 | Latigo Petroleum, LLC only | Lipscomb (Cleveland) | Lipscomb | 1 | 11.4K | 1.31M | by Jan 1993 – Aug 2026 |
| Alexander, Charles G-4-165577 | Columbus Energy, LLC only | Bashara-Hereford (7300) | Webb | 1 | 11.2K | 3.23M | Nov 1997 – Aug 2026 |
| Alexander, Geneva Furrh et Al G-6-244191 | Diversified Production LLC only | Carthage (Cotton Valley) | Panola | 1 | 11.1K | 335K | Aug 2008 – Aug 2026 |
| Alexander, E.C. O-1-13015 | Meb, LLC only | Bateman (Austin Chalk) | Bastrop | 8 | 11.1K | 56 | by Jan 1993 – Aug 2026 |
| Alexander, Charles E. G-4-69688 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 11K | 972K | Jan 1997 – Aug 2026 |
| Alexander Estate "M" O-11-60670 | Patton Exploration, Inc. only | Reutinger (Tannehill, Upper) | King | 1 | 10.9K | 20 | by Jan 1993 – Jun 2009 |
| Alexander, Geneva Furrh et Al G-6-232946 | Diversified Production LLC only | Carthage (Cotton Valley) | Panola | 1 | 10.7K | 642K | Nov 2007 – Aug 2026 |
| Born, Alex "F" G-14-155741 | Complete Oil & Gas Services, LLC only | Lipscomb (Douglas) | Lipscomb | 1 | 10.6K | 2.47M | Aug 1995 – Nov 2023 |
| Allday, M. O-6-14659 | Brookston Energy, Inc. only | Waskom (Alexander Sand) | Harrison | 1 | 10.5K | 117K | Mar 2007 – Aug 2026 |
| Alexander Trust O-13-33724 | Legacy Exploration, LLC I only | Dillard, SE. (Bryson) | Jack | 1 | 10.4K | 792 | Feb 2017 – Oct 2022 |
| Alexander O-14-6769 | Strat Land Exploration Company only | Stamper (Marmaton) | Hansford | 1 | 10.2K | 16.4K | by Jan 1993 – Dec 2000 |
| Mitchell, Alex 1 G-9-188086 | White Rock Oil & Gas, LLC only | Deer Canyon (Strawn) | Terrell | 1 | 9.99K | 1.31M | Nov 2001 – Aug 2026 |
| Alexander Estate "B" O-11-60406 | Patton Exploration, Inc. only | Reutinger (Tannehill, Upper) | King | 4 | 9.97K | 20 | by Jan 1993 – Jun 2001 |
| Taylor, Tracy O-6-13955 | Shelby Operating Company only | Waskom (Alexander Sand) | Harrison | 1 | 9.88K | 114K | Sep 1999 – Jul 2026 |
| Smith, Alex O-14-211 | M5OEXIT, LLC only | Panhandle Gray County Field | Gray | 5 | 9.82K | 47.2K | by Jan 1993 – Mar 2009 |
| Alexander G-6-147255 | Global Exploration, LLC only | Percy Wheeler (Travis Peak) | Cherokee | 1 | 9.57K | 773K | Nov 1993 – Feb 2025 |
| Alexander, E. C. -B- O-1-11937 | Triple C Oil Inc. only | Bateman (Austin Chalk) | Bastrop | 3 | 9.35K | 53 | by Jan 1993 – Jul 2001 |
| Alexander O-14-9795 | Amarillo Exploration, Inc. only | Clementine (Novi) | Hansford | 1 | 9.11K | 0 | Apr 2023 – Aug 2026 |
| Alexander, M.M. G-4-138411 | Michael Petroleum Corporation only | Ortiz (Lobo) | Webb | 1 | 9.09K | 2.32M | by Jan 1993 – Aug 1999 |
| Geotze, L. & F. -F- O-13-18589 | Alexander Oil Properties LLC only | Wichita County Regular | Wichita | 17 | 9.08K | 195 | by Jan 1993 – Mar 2023 |
| Alexander, G. G-6-163250 | Jandar Exploration, L. C. only | Oak Hill (Cotton Valley) | Rusk | 1 | 8.91K | 592K | Apr 1997 – Jul 2012 |
| Alexander, Hugh, R/a -A- O-7-7487 | Southlake Operating LLC only | East Texas | Rusk | 4 | 8.33K | 4.84K | by Jan 1993 – Oct 2003 |
| Ramey, Alex G-4-175697 | Remora Operating, LLC only | Cano-Mexico (6800) | Hidalgo | 1 | 8.17K | 921K | Jan 2000 – May 2025 |
| Garrett O-8-27713 | Alexander Resources, Inc. only | Bartlett, East | Jones | 1 | 8.06K | 35 | Nov 1995 – Mar 2008 |
| Sears Alex 159 O-8-16921 | Anderson, James K. Inc. only | E. J. (Gardner) | Taylor | 1 | 7.93K | 37.7K | by Jan 1993 – Aug 1996 |
| Block #22-Alex #1 O-1-3067 | W.W. Energy only | Salt Flat | Caldwell | 1 | 7.92K | 2.81K | by Jan 1993 – Aug 2026 |
| Alexander '25' O-8-31412 | 5L Properties, Inc. only | Lueders, S. (King Sand) | Jones | 3 | 7.92K | 0 | Nov 2013 – Mar 2026 |