| Alexander State Unit 58-2-24 G-10-296613 | Eqv Operating LLC only | Phantom (Wolfcamp) | Reeves | 1 | 213K | 4.5M | Nov 2023 – Mar 2026 |
| Alexander 01 AC G-2-293184 | Marathon Oil EF LLC only | Sugarkane (Austin Chalk) | Karnes | 1 | 211K | 1.32M | May 2022 – Apr 2026 |
| Thos. Alexander Unit O-3-22287 | Hilcorp Energy Company only | Franks, NW. (8900) | Galveston | 1 | 209K | 114K | Jan 1994 – Nov 2008 |
| Wessendorff 5-Alex-Wess 2 (SA) G-2-274290 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | Karnes | 1 | 204K | 2.68M | May 2014 – Mar 2026 |
| Alexander State Unit 58-2-24 G-10-296822 | Eqv Operating LLC only | Phantom (Wolfcamp) | Reeves | 1 | 201K | 4.12M | Nov 2023 – Mar 2026 |
| Alexander State Unit 58-2-24 G-10-292157 | Eqv Operating LLC only | Sandbar (Bone Spring) | Reeves | 1 | 198K | 1.04M | Dec 2021 – Apr 2025 |
| Alexander State Unit 58-2-24 G-10-296612 | Eqv Operating LLC only | Phantom (Wolfcamp) | Reeves | 1 | 186K | 4.01M | Nov 2023 – Mar 2026 |
| Alexander 01 G-2-268794 | Marathon Oil EF LLC only | Sugarkane (Eagle Ford) | Karnes | 1 | 185K | 555K | Dec 2012 – Apr 2026 |
| Wessendorff 5-Alex-Wess 2 (SA) G-2-274434 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | Karnes | 1 | 182K | 2.21M | May 2014 – Sep 2021 |
| Alexander /400 Ac./ O-4-2046 | Nylo Oil & Gas LLC only | Palo Blanco (FB-S) | Brooks | 4 | 182K | 55 | Jan 1993 – Feb 2025 |
| Alexander O-14-8667 | Amarillo Exploration, Inc. only | Clementine (St. Louis) | Hansford | 4 | 181K | 52.1K | Jun 2012 – Apr 2026 |
| Alexander-Wessendorff 2 (SA) A1 G-2-288376 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | Karnes | 1 | 179K | 3.25M | May 2019 – Apr 2026 |
| Alexis Rae B O-9-22247 | Civitas Permian Operating, LLC only | Spraberry (Trend Area) | Reagan | 1 | 179K | 593K | Nov 2023 – Mar 2026 |
| Alexander State Unit 58-2-24 G-10-294083 | Eqv Operating LLC only | Sandbar (Bone Spring) | Reeves | 1 | 177K | 999K | Oct 2022 – Dec 2025 |
| Alexander 01 AC G-2-293090 | Marathon Oil EF LLC only | Sugarkane (Austin Chalk) | Karnes | 1 | 177K | 1.18M | May 2022 – Apr 2026 |
| Alexander GU G-3-267001 | Hilcorp Energy Company only | Hartburg, S.E. (Yegua Cons.) | Orange | 1 | 177K | 1.52M | Sep 2012 – Apr 2026 |
| Alexander Heirs O-8-28483 | Katsco Energy, Inc. only | Lake Trammel, S. (Canyon) | Nolan | 2 | 175K | 519K | Jun 1998 – Nov 2016 |
| Alexander-Wessendorff 1 (SA) A5 G-2-288185 | Repsol Oil & Gas USA, LLC only | Sugarkane (Austin Chalk) | Karnes | 1 | 168K | 1.1M | May 2019 – Apr 2026 |
| Alexander-Wessendorff 1 (SA) A4 G-2-287829 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | Karnes | 1 | 162K | 3.01M | May 2019 – Apr 2026 |
| Jonesville O-6-12190 | Brookston Energy, Inc. only | Waskom (Alexander Sand) | Harrison | 2 | 158K | 683K | Jan 1993 – Apr 2026 |
| Alexis Rae F O-9-22219 | Civitas Permian Operating, LLC only | Spraberry (Trend Area) | Reagan | 1 | 157K | 459K | Nov 2023 – Mar 2026 |
| Alexander-Wessendorff 1 (SA) A3 G-2-288097 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | Karnes | 1 | 157K | 2.86M | May 2019 – Apr 2026 |
| Alexander Gas Unit 1 G-2-267294 | Falcon Production LLC only | Sugarkane (Eagle Ford) | Karnes | 1 | 155K | 1.94M | Oct 2011 – Nov 2020 |
| Alexander 17 O-10-35031 | Ozark Exploration, Inc. only | Zebulon, North (Fusselman) | Howard | 1 | 150K | 12 | Jun 1996 – Apr 2026 |
| Alex '20' O-10-38128 | Diamondback E&P LLC only | Spraberry (Trend Area) | Martin | 2 | 146K | 130K | Feb 2007 – Apr 2026 |
| Alexander Murphy G-1-263544 | BPX Operating Company only | Hawkville (Eagleford Shale) | McMullen | 1 | 143K | 563K | Jan 2012 – Apr 2026 |
| Alexander Unit 66 O-14-9078 | Presidio Petroleum LLC only | Lipscomb, S.E. (Cleveland) | Hemphill | 2 | 143K | 836K | Aug 2013 – Apr 2026 |
| Alexis Rae H O-9-22250 | Civitas Permian Operating, LLC only | Spraberry (Trend Area) | Reagan | 1 | 134K | 739K | Nov 2023 – Mar 2026 |
| Alexander-Wessendorff 1 (SA) A6 G-2-287858 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | Karnes | 1 | 131K | 2.3M | Jul 2019 – Apr 2026 |
| Alexis Rae C O-9-22248 | Civitas Permian Operating, LLC only | Spraberry (Trend Area) | Reagan | 1 | 123K | 693K | Nov 2023 – Mar 2026 |
| Cox Alexander O-10-39221 | New Height Energy, LLC only | Spraberry (Trend Area) | Howard | 3 | 117K | 332K | Mar 2008 – Mar 2018 |
| Alexander O-9-6874 | Apache Corporation only | Spraberry (Trend Area) | Reagan | 5 | 116K | 409K | Jan 1993 – Jul 2020 |
| Alexander Estate O-8-15792 | Laneer Resources Company only | Alexander, S. (Canyon, LO) | Stonewall | 21 | 112K | 72 | Jan 1993 – Apr 2026 |
| Tracy-Taylor O-6-13179 | Shelby Operating Company only | Waskom (Alexander Sand) | Harrison | 1 | 107K | 460K | Jun 1993 – Apr 2026 |
| Alexander 66 O-14-8859 | Presidio Petroleum LLC only | Lipscomb, S.E. (Cleveland) | Hemphill | 1 | 106K | 517K | Jan 2013 – Apr 2026 |
| Alexander, Naomi O-11-5924 | Kala Oil Company only | Slaughter | Hockley | 10 | 103K | 66.5K | Jan 1993 – Apr 2026 |
| Alexandra O-10-43218 | Halcon Operating Co., Inc. only | Wolfbone (Trend Area) | Pecos | 1 | 100K | 190K | Jul 2013 – Jan 2025 |
| Alexander, Ruth O-11-64161 | Moonshine Resources, LLC only | Anton (Clear Fork, Lower) | Hockley | 1 | 99.5K | 39 | Jan 1993 – Apr 2026 |
| Alexander 67 O-14-8866 | Presidio Petroleum LLC only | Lipscomb, S.E. (Cleveland) | Hemphill | 2 | 98.6K | 624K | Mar 2013 – Apr 2026 |
| Mitchell, Alex 1 G-9-165705 | White Rock Oil & Gas, LLC only | Deer Canyon (Penn) | Terrell | 1 | 92K | 8.29M | May 1997 – Apr 2026 |
| Alexander State Unit 58-2-24 G-10-292164 | Eqv Operating LLC only | Sandbar (Bone Spring) | Reeves | 1 | 91.6K | 450K | Dec 2021 – Dec 2024 |
| Alexis Rae O-9-22249 | Civitas Permian Operating, LLC only | Spraberry (Trend Area) | Reagan | 2 | 91.5K | 712K | Nov 2023 – Mar 2026 |
| Mitchell, Alex 2 G-9-154018 | White Rock Oil & Gas, LLC only | Deer Canyon (Penn) | Terrell | 1 | 90K | 3.53M | Feb 1995 – Apr 2026 |
| Alexander G-14-263485 | Unbridled Resources, LLC only | Lipscomb (Cleveland) | Lipscomb | 1 | 89.5K | 445K | Dec 2011 – Apr 2026 |
| Alexander O-8-2319 | Bluff Creek Petroleum, LLC only | Jones County Regular | Jones | 8 | 86.6K | 20 | Jan 1993 – Apr 2026 |
| Mitchell, Alex 1 G-9-168853 | White Rock Oil & Gas, LLC only | Deer Canyon (Strawn) | Terrell | 1 | 82.4K | 4.78M | Apr 1998 – Apr 2026 |
| Alexander, J. H. O-7-8475 | Linder, John Operating Co., LLC only | East Texas | Gregg | 8 | 80.2K | 9.11K | Jan 1993 – Aug 2019 |
| Alexander, Minor -A- O-8-4170 | Bridwell Oil Co. only | Alexander (Canyon Lower) | Stonewall | 1 | 80K | 168 | Jan 1993 – Apr 2026 |
| State Tract 721-L G-4-193234 | Gryphon Exploration Company only | Alexandre (Cib Haz 3) | Matgrda IS-LB | 1 | 78.7K | 4.84M | Dec 2002 – Nov 2004 |
| Sears, Alex O-8-28398 | Anderson, James K. Inc. only | E.J. North (Flippen) | Taylor | 1 | 78K | 45.1K | Feb 1998 – Apr 2026 |