| Zircon Unit G-3-157312 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 550K | 5.95M | Oct 1995 – Apr 2026 |
| Blue Paddle G-3-289988 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 478K | 1.91M | Sep 2019 – Apr 2026 |
| Lehmann-Von Minden G-3-144582 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 435K | 4.46M | Feb 1993 – Apr 2026 |
| Orsak Unit G-3-163559 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 418K | 9.08M | Apr 1997 – Apr 2026 |
| Speckels OL Unit G-3-145819 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 377K | 9.51M | May 1993 – Apr 2026 |
| Brown Seal G-3-298366 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 365K | 4.76M | Apr 2024 – Apr 2026 |
| Albers et al Unit G-3-159018 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 355K | 9.17M | Apr 1996 – Mar 2026 |
| Rainier G-3-293205 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 339K | 2.7M | Aug 2021 – Apr 2026 |
| Pietsch-Mitschke Unit G-3-142321 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 312K | 3.46M | Jan 1993 – Apr 2026 |
| Affirmed Unit G-3-289990 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 311K | 3.79M | Nov 2020 – Apr 2026 |
| Strange Unit G-3-161535 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk, Gas) | 1 | 305K | 4.43M | Sep 1996 – Oct 2020 |
| Baca G-3-146161 | Redbud E & P, Inc. | Giddings (Austin Chalk, Gas) | 1 | 303K | 2.71M | Mar 1993 – Apr 2026 |
| Petras-Amarado G-3-145631 | Redbud E & P, Inc. | Giddings (Austin Chalk, Gas) | 1 | 300K | 2.5M | May 1993 – Apr 2026 |
| Big Bend G-3-289983 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk, Gas) | 1 | 287K | 5.49M | Nov 2020 – Apr 2026 |
| Sitting Bull Unit G-3-156439 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 266K | 4.39M | Sep 1995 – Apr 2026 |
| Citation Unit G-3-168242 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 262K | 4.6M | Oct 1997 – Sep 2025 |
| Grey Wolf G-3-300831 | Geosouthern Operating II, LLC | Giddings (Austin Chalk-3) | 1 | 262K | 1.04M | Jun 2023 – Apr 2026 |
| Geronimo Unit G-3-156350 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 261K | 3.19M | Jul 1995 – Apr 2026 |
| Michalsky G-3-149199 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 254K | 3.2M | Nov 1993 – Apr 2026 |
| Mahlmann-Walther Unit G-3-141715 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | 1 | 252K | 2.3M | Jan 1993 – Aug 1999 |
| Kolbe G-3-154796 | Geosouthern Energy Corporation | Giddings (Austin Chalk, Gas) | 1 | 248K | 2.86M | May 1995 – Apr 2026 |
| Pocahontas Unit G-3-161527 | Union Pacific Resources Company | Giddings (Austin Chalk, Gas) | 1 | 245K | 929K | Nov 1996 – Aug 1999 |
| Tonto Unit G-3-159112 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 245K | 5.1M | May 1996 – Apr 2026 |
| East Ledbetter Unit G-3-143618 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 245K | 2.19M | Jan 1993 – Oct 2025 |
| Cedar Creek "B" Amarado Unit G-3-146831 | Enervest Operating, L.L.C. | Giddings (Austin Chalk, Gas) | 1 | 243K | 2.33M | Jul 1993 – Aug 2009 |
| Summerbliss Two G-3-298510 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 239K | 1M | Sep 2024 – Apr 2026 |
| Lcra/Coa Unit 2 G-3-154709 | Geosouthern Energy Corporation | Giddings (Austin Chalk, Gas) | 1 | 238K | 6.16M | Apr 1995 – Aug 2015 |
| Banks Ranch Unit G-3-288648 | Geosouthern Operating II, LLC | Giddings (Austin Chalk, Gas) | 1 | 238K | 2.96M | Nov 2019 – Apr 2026 |
| Cedar Creek "C" Amarado Unit G-3-145869 | Redbud E & P, Inc. | Giddings (Austin Chalk, Gas) | 1 | 236K | 2.76M | May 1993 – Apr 2026 |
| Schultz Unit G-3-171073 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 234K | 4.15M | Jun 1998 – Oct 2023 |
| Dredd G-3-289635 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 232K | 2.55M | Feb 2020 – Apr 2026 |
| Berger-Amarado G-3-147301 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 232K | 2.23M | Sep 1993 – Apr 2026 |
| Schultz-Moerbe Unit G-3-143965 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 230K | 2.31M | Jan 1993 – Apr 2026 |
| Patricia-O.L. Unit G-3-147069 | Enervest Operating, L.L.C. | Giddings (Austin Chalk, Gas) | 1 | 229K | 2.86M | Oct 1993 – Sep 2010 |
| Cliffhanger G-3-290742 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 228K | 3.75M | Jan 2021 – Apr 2026 |
| Marcus One G-3-299708 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 227K | 2.64M | Dec 2024 – Apr 2026 |
| Mary Lou Unit G-3-146707 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 213K | 4.66M | Sep 1993 – Apr 2026 |
| Opal Unit G-3-154498 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 212K | 4.3M | Feb 1995 – Apr 2026 |
| Kocian OL G-3-289475 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 205K | 2.61M | Feb 2020 – Apr 2026 |
| Ranger G-3-290401 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 204K | 4.15M | Jan 2021 – Apr 2026 |
| Miller-OL Unit G-3-148096 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 202K | 5.29M | Nov 1993 – Apr 2026 |
| Campbell-Lutheran Unit G-3-148718 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk, Gas) | 1 | 201K | 2.57M | Jan 1994 – Sep 2020 |
| Frank Rauch Unit G-3-288515 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 200K | 1.33M | Apr 2019 – Apr 2026 |
| Menn-OL Unit G-3-148521 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 197K | 1.91M | Jan 1994 – Apr 2026 |
| Lincoln G-3-289097 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 197K | 4.32M | Nov 2019 – Apr 2026 |
| Brown Adam G-3-298365 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 195K | 1.6M | Apr 2024 – Apr 2026 |
| Super T G-3-285290 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 191K | 3.39M | Sep 2018 – Apr 2026 |
| Onyx Unit G-3-160343 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk, Gas) | 1 | 186K | 3.24M | May 1996 – Jul 2025 |
| Geosouthern-Min Brown G-3-144827 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk, Gas) | 1 | 186K | 2.46M | Mar 1993 – Aug 2010 |
| Affirmed Unit G-3-277252 | Magnolia Oil & Gas Operating LLC | Giddings (Austin Chalk-3) | 1 | 186K | 2.89M | Dec 2014 – Apr 2026 |