| Briscoe-McKnight O-1-19225 | Espada Energy, LLC only | Lorenzo (Austin Chalk) | Dimmit | 7 | 564K | 438K | Oct 2017 – Aug 2026 |
| Moody G-3-149232 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Grimes | 1 | 562K | 7.62M | Mar 1994 – Mar 2023 |
| Challenger AC Unit A O-2-12193 | Marathon Oil EF LLC only | Sugarkane (Austin Chalk) | Karnes | 2 | 559K | 1.49M | Aug 2021 – Aug 2026 |
| Graiden O-3-27591 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Milam | 1 | 555K | 815K | Apr 2019 – Aug 2026 |
| Mika O-2-11478 | Magnolia Oil & Gas Operating LLC only | Sugarkane (Austin Chalk) | Karnes | 2 | 554K | 1.27M | Apr 2017 – Aug 2026 |
| Audioslave A O-2-11616 | Magnolia Oil & Gas Operating LLC only | Sugarkane (Austin Chalk) | Karnes | 4 | 554K | 1.41M | Dec 2018 – Aug 2026 |
| Black Stone Hanks a-20 Unit G-6-256414 | Zarvona Energy LLC only | Brookeland (Austin Chalk, 8800) | Tyler | 1 | 553K | 6.23M | Mar 2010 – Aug 2026 |
| Black Stone Minerals a-5 East G-6-250004 | Zarvona Energy LLC only | Brookeland (Austin Chalk, 8800) | Tyler | 1 | 553K | 2.33M | May 2007 – Aug 2026 |
| Zircon Unit G-3-157312 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Fayette | 1 | 551K | 5.96M | Oct 1995 – Aug 2026 |
| Briscoe B (SA1) G-1-295436 | SM Energy Company only | Lorenzo (Austin Chalk) | Webb | 1 | 548K | 2M | Jul 2020 – Aug 2026 |
| Tahoe Mountain G-3-294707 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Washington | 1 | 545K | 3.69M | May 2022 – Aug 2026 |
| Haltom-Fazzino Unit O-3-22850 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 544K | 823K | Aug 1995 – Jul 2026 |
| Pge Browne O-1-19101 | Crescent Energy Operating, LLC only | Lorenzo (Austin Chalk) | Webb | 13 | 541K | 1.87M | Jul 2025 – Aug 2026 |
| Simmons A-70 G-3-229794 | Tala Energy LLC only | Double a Wells, N (Austin Chalk) | Polk | 1 | 541K | 6.81M | Mar 2007 – Mar 2025 |
| Blanc H O-2-11888 | EOG Resources, Inc. only | Sugarkane (Austin Chalk) | Karnes | 1 | 540K | 2.39M | Nov 2019 – Aug 2026 |
| San Ambrosia F (SA28) State O-1-20408 | SM Energy Company only | Lorenzo (Austin Chalk) | Webb | 1 | 537K | 1.82M | Aug 2021 – Aug 2026 |
| Randolph O-3-22367 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Lee | 3 | 537K | 1.51M | Feb 1994 – Aug 2026 |
| Vavra-Van Dresar Unit O-3-22108 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Burleson | 5 | 536K | 1.81M | May 1993 – Aug 2026 |
| Giaccone-Lehmann Unit O-3-21886 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Washington | 2 | 534K | 1.82M | by Jan 1993 – Aug 2026 |
| Dickson-Allen Unit O-2-12017 | Devon Energy Production Co, L.P. only | Sugarkane (Austin Chalk) | Karnes | 4 | 533K | 1.48M | Feb 2020 – Aug 2026 |
| Perrone-Muse Unit O-3-23355 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk-3) | Robertson | 1 | 533K | 258K | Sep 1997 – Jul 2026 |
| Yanta a AC-Crews B AC SA 3 O-2-12185 | BPX Operating Company only | Sugarkane (Austin Chalk) | Karnes | 1 | 531K | 1.72M | May 2021 – Aug 2026 |
| Kubin-Scamardo Unit O-3-23338 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk-3) | Robertson | 1 | 531K | 398K | Jul 1997 – Jul 2026 |
| Graham, Lois -A- O-3-14783 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk-3) | Burleson | 3 | 530K | 789K | by Jan 1993 – Jul 2026 |
| Dietz O.L. Unit G-3-291315 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Washington | 1 | 529K | 4.61M | Oct 2020 – Aug 2026 |
| Crews a AC-Crisp a AC SA 1 O-2-12196 | BPX Operating Company only | Sugarkane (Austin Chalk) | Karnes | 1 | 529K | 1.73M | May 2021 – Aug 2026 |
| Jones-Lang Unit O-3-21895 | CML Exploration, LLC only | Kurten (Austin Chalk) | Brazos | 1 | 527K | 427K | by Jan 1993 – Aug 2026 |
| Emerie O-3-27932 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Milam | 1 | 527K | 799K | Sep 2021 – Aug 2026 |
| Dansby Trust O-3-22481 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 527K | 3.28M | Jun 1994 – Aug 2026 |
| Akin-Foxfire Unit O-3-22405 | Enervest Operating, L.L.C. only | Giddings (Austin Chalk-3) | Brazos | 1 | 526K | 3.6M | Apr 1994 – Jun 2013 |
| Golden 'a' Unit AC O-2-12746 | Devon Energy Production Co, L.P. only | Sugarkane (Austin Chalk) | Karnes | 4 | 524K | 884K | Feb 2024 – Aug 2026 |
| Lehmann,ira J. O-3-14516 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Lee | 2 | 524K | 1.79M | by Jan 1993 – Aug 2026 |
| Needmore O-6-13153 | L.C.S. Production Company only | Brookeland (Austin Chalk, 8800) | Sabine | 1 | 523K | 2.21M | by Jan 1993 – Mar 2003 |
| Angonia-Luza Unit O-3-21821 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 3 | 521K | 803K | by Jan 1993 – Jul 2026 |
| Williams Estate O-3-21994 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Fayette | 2 | 517K | 1.37M | Apr 1993 – Apr 2016 |
| Amelia Kay O-3-27933 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Milam | 1 | 514K | 764K | Aug 2021 – Aug 2026 |
| Blanc L O-2-11999 | EOG Resources, Inc. only | Sugarkane (Austin Chalk) | Karnes | 1 | 513K | 2.27M | Nov 2019 – Aug 2026 |
| Brewer-Bridges Unit O-3-22862 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Burleson | 2 | 511K | 607K | Aug 1995 – Aug 2026 |
| McCartney Unit O-2-12605 | EOG Resources, Inc. only | Sugarkane (Austin Chalk) | Karnes | 3 | 510K | 987K | Apr 2023 – Aug 2026 |
| Barton-Stufflebeme Unit O-3-21198 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk-3) | Burleson | 1 | 509K | 1.09M | by Jan 1993 – Jul 2026 |
| Hovorak-Spearman Unit O-3-21836 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk-3) | Burleson | 1 | 503K | 727K | by Jan 1993 – Jul 2026 |
| E. E. Smith Unit 2 O-1-13083 | Zarvona Energy LLC only | First Shot (Austin Chalk) | Gonzales | 2 | 503K | 268K | by Jan 1993 – Aug 2026 |
| Thompson, I. W. 401 O-5-3187 | Basa Resources, Inc. only | Van (Austin Chalk) | Van Zandt | 16 | 503K | 1.41M | by Jan 1993 – Aug 2026 |
| Riverside Walk G-3-300053 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Washington | 1 | 501K | 1.87M | Nov 2022 – Aug 2026 |
| Thundercreek Four O-3-28190 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Lee | 1 | 499K | 1.36M | May 2024 – Aug 2026 |
| Buscha-Armstrong Unit O-3-21964 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Fayette | 2 | 498K | 3.86M | Feb 1993 – Aug 2026 |
| Whitney Unit O-3-23180 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk-3) | Burleson | 2 | 498K | 228K | Jan 1997 – Jul 2026 |
| Best-Kenesson Willsource Unit G-3-223308 | Tala Energy LLC only | Double a Wells, N (Austin Chalk) | Polk | 1 | 497K | 6.03M | Jan 2006 – Apr 2021 |
| Briscoe G G-1-295962 | SM Energy Company only | Lorenzo (Austin Chalk) | Webb | 1 | 497K | 1.89M | Dec 2019 – Aug 2026 |
| Korth Unit B O-2-11960 | Burlington Resources O & G Co LP only | Sugarkane (Austin Chalk) | Karnes | 1 | 497K | 1.2M | Feb 2020 – Aug 2026 |