| Tillie Ann a AC O-2-11602 | BPX Operating Company only | Sugarkane (Austin Chalk) | Karnes | 2 | 701K | 1.62M | Mar 2018 – Aug 2026 |
| Weigelt Oil Unit O-3-21985 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Washington | 5 | 691K | 2.59M | Feb 1993 – Aug 2026 |
| Blanc G O-2-11879 | EOG Resources, Inc. only | Sugarkane (Austin Chalk) | Karnes | 1 | 688K | 2.69M | Nov 2019 – Aug 2026 |
| A. Banduch C AC O-2-11987 | BPX Operating Company only | Sugarkane (Austin Chalk) | Karnes | 3 | 687K | 2.3M | Jun 2020 – Aug 2026 |
| Saratoga B G-3-291562 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Washington | 1 | 682K | 3.11M | Dec 2020 – Aug 2026 |
| Averly O-2-11806 | Caturus Energy, LLC only | Sugarkane (Austin Chalk) | Karnes | 2 | 678K | 1.87M | Jul 2019 – Aug 2026 |
| Pfluger-Black Stone A-20 G-6-222960 | Zarvona Energy LLC only | Brookeland (Austin Chalk, 8800) | Tyler | 1 | 674K | 2.77M | Sep 2006 – Aug 2026 |
| Tamu O-3-21415 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk-3) | Burleson | 6 | 672K | 5.9M | by Jan 1993 – Jul 2026 |
| Marlene, Lili G-3-288409 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Washington | 1 | 672K | 3.29M | Mar 2018 – Aug 2026 |
| Forestar Byerley a-32 Unit G-3-266667 | Zarvona Energy LLC only | Magnolia Springs (Austin Chalk) | Newton | 1 | 669K | 6.13M | Nov 2011 – Aug 2026 |
| Weeks-Lehmann Unit O-3-22266 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Lee | 2 | 662K | 1.3M | Dec 1993 – Aug 2026 |
| Acadia G-3-290970 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Washington | 1 | 660K | 3.78M | Oct 2020 – Aug 2026 |
| Frazier Unit O-3-23286 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk-3) | Milam | 2 | 659K | 232K | Jun 1997 – Jul 2026 |
| Kapser Unit O-3-23425 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk-3) | Robertson | 3 | 654K | 450K | Dec 1997 – Jul 2026 |
| Pfluger-Black Stone A-20 G-6-222165 | Zarvona Energy LLC only | Brookeland (Austin Chalk, 8800) | Tyler | 1 | 649K | 4.27M | Apr 2006 – Aug 2026 |
| Maurer-McFarland Unit AC O-2-12115 | Marathon Oil EF LLC only | Sugarkane (Austin Chalk) | Karnes | 2 | 648K | 1.55M | May 2021 – Aug 2026 |
| Sacks, Sylvia #1 O-3-20800 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Lee | 5 | 644K | 997K | by Jan 1993 – Aug 2026 |
| Mason G-6-237754 | Burk Royalty Co., Ltd. only | Brookeland (Austin Chalk, 8800) | Tyler | 1 | 640K | 9.59M | Jun 2008 – Aug 2026 |
| Moczygemba-Jauer-Pollok Psa AC O-2-11753 | Marathon Oil EF LLC only | Sugarkane (Austin Chalk) | Karnes | 1 | 639K | 1.85M | Jul 2019 – Jul 2026 |
| Black Stone Hanks a-20 Unit G-6-234703 | Zarvona Energy LLC only | Brookeland (Austin Chalk, 8800) | Tyler | 1 | 638K | 2.87M | Jan 2008 – Aug 2026 |
| Gonzo O-3-27776 | Paleo Oil Company LLC only | Giddings (Austin Chalk-3) | Lee | 3 | 637K | 1.47M | Jan 2020 – Aug 2026 |
| Joe Burreaux Unit O-2-11975 | Murphy Expl. & Prod. Co. - USA only | Sugarkane (Austin Chalk) | Karnes | 3 | 637K | 1.79M | Mar 2021 – Aug 2026 |
| Gallo Rojo a AC O-2-11604 | BPX Operating Company only | Sugarkane (Austin Chalk) | Karnes | 3 | 636K | 1.75M | Mar 2018 – Aug 2026 |
| Shiner Ranch O-1-4933 | Trinity Operating (Usg), LLC only | Pearsall (Austin Chalk) | Frio | 13 | 634K | 1.22M | by Jan 1993 – Mar 2021 |
| Tahoe Pines G-3-294601 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Washington | 1 | 633K | 3.05M | May 2022 – Aug 2026 |
| Crisp B AC-Crews a AC SA 1 O-2-12034 | BPX Operating Company only | Sugarkane (Austin Chalk) | Karnes | 1 | 630K | 2.14M | May 2021 – Aug 2026 |
| Panther Hollow O-1-4948 | Oryx Energy Company only | Pearsall (Austin Chalk) | Frio | 44 | 628K | 856K | by Jan 1993 – Nov 1996 |
| Blanc C O-2-11716 | EOG Resources, Inc. only | Sugarkane (Austin Chalk) | Karnes | 1 | 626K | 1.6M | Nov 2018 – Aug 2026 |
| Pge Dos G-1-291818 | Crescent Energy Operating, LLC only | Lorenzo (Austin Chalk) | Webb | 1 | 621K | 3.27M | Aug 2021 – Aug 2026 |
| Double Eagle Ranch 'B' O-3-22028 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Lee | 1 | 620K | 670K | Feb 1993 – Jul 2009 |
| Avant, J.R. O-1-12275 | Trinity Operating (Usg), LLC only | Pearsall (Austin Chalk) | Frio | 9 | 605K | 386K | by Jan 1993 – Feb 2020 |
| O'Brien Reid Unit G-6-202696 | Zarvona Energy LLC only | Brookeland (Austin Chalk, 8800) | Tyler | 1 | 604K | 2.28M | May 2004 – Aug 2026 |
| Johnston Ranch O-1-17738 | Flint Oak Energy, LLC only | Pearsall (Austin Chalk) | Frio | 12 | 603K | 33.7K | Nov 2013 – Aug 2026 |
| Dunkin Unit O-3-27708 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Lee | 2 | 599K | 1.58M | Oct 2018 – Aug 2026 |
| TMK Unit E O-2-12389 | Gulftex Energy, LLC only | Sugarkane (Austin Chalk) | Karnes | 1 | 598K | 1.81M | Dec 2021 – Aug 2026 |
| Fillippone, Marion J. Fee O-3-12060 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk-3) | Burleson | 8 | 597K | 3.02M | by Jan 1993 – Jul 2026 |
| Saratoga A O-3-27916 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Washington | 1 | 593K | 2.14M | Dec 2020 – Jul 2024 |
| Crisp a AC-Crews a AC SA 1 O-2-12033 | BPX Operating Company only | Sugarkane (Austin Chalk) | Karnes | 1 | 591K | 2.41M | May 2021 – Aug 2026 |
| Black Stone Minerals a-5 East G-6-213602 | Zarvona Energy LLC only | Brookeland (Austin Chalk, 8800) | Tyler | 1 | 583K | 2.18M | Jul 2005 – Aug 2026 |
| Cotropia-Frazier Unit O-3-23421 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk-3) | Robertson | 1 | 582K | 329K | Dec 1997 – Jul 2026 |
| Hooper G-6-291510 | Burk Royalty Co., Ltd. only | Brookeland (Austin Chalk, 8800) | Tyler | 1 | 580K | 3.41M | Sep 2021 – Aug 2026 |
| Weigelt Oil Unit G-3-302196 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Washington | 1 | 575K | 2.61M | Aug 2018 – Aug 2026 |
| Black Stone Minerals A-618 G-6-234779 | Zarvona Energy LLC only | Brookeland (Austin Chalk, 8800) | Tyler | 1 | 574K | 2.37M | Oct 2007 – Aug 2026 |
| Davis B AC O-2-12067 | BPX Operating Company only | Sugarkane (Austin Chalk) | Karnes | 3 | 573K | 1.3M | Aug 2020 – Aug 2026 |
| Lanicek OL G-3-149094 | Chesapeake Operating, Inc. only | Giddings (Austin Chalk, Gas) | Grimes | 1 | 570K | 3.24M | Feb 1994 – Feb 2001 |
| Blackstone Minerals A-6 G-6-217819 | Zarvona Energy LLC only | Brookeland (Austin Chalk, 8800) | Tyler | 1 | 569K | 2.3M | Dec 2005 – Aug 2026 |
| PMF O-3-27925 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Robertson | 1 | 567K | 598K | Jul 2021 – Aug 2026 |
| Cameron-Mamie Unit No. 1 O-3-22444 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Lee | 1 | 567K | 1M | Mar 1994 – Aug 2026 |
| Briscoe C (SA4) G-1-295368 | SM Energy Company only | Lorenzo (Austin Chalk) | Webb | 1 | 565K | 2.09M | Jun 2021 – Aug 2026 |
| Newell-Toupal Unit O-3-21390 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk-3) | Burleson | 1 | 564K | 587K | by Jan 1993 – Jul 2026 |