| Grant O-3-26404 | Pride Energy Company only | Madisonville, W. (Woodbine -A-) | Grimes | 7 | 597K | 4.73M | Dec 2012 – Apr 2026 |
| Ruen O-3-25897 | CML Exploration, LLC only | Madisonville, W. (Woodbine -A-) | Grimes | 4 | 592K | 1.49M | Mar 2012 – Apr 2026 |
| Hicks, B.B. O-3-14116 | Sandel Operating Company only | Martin Prairie (Wilcox 4900) | Grimes | 1 | 572K | 367K | Jan 1993 – Apr 2016 |
| Lanicek OL G-3-149094 | Chesapeake Operating, Inc. only | Giddings (Austin Chalk, Gas) | Grimes | 1 | 570K | 3.24M | Feb 1994 – Feb 2001 |
| Moody G-3-149232 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Grimes | 1 | 562K | 7.62M | Mar 1994 – Mar 2023 |
| Sutton O-3-26253 | CML Exploration, LLC only | Madisonville, W. (Woodbine -A-) | Grimes | 3 | 475K | 1.82M | Dec 2012 – Apr 2026 |
| Powledge O-3-20128 | Crimson Exploration Oper., Inc. only | Madisonville, S. (Geog. Twn. UP) | Grimes | 1 | 446K | 1.79M | Nov 1998 – Nov 2016 |
| Husfeld G-3-149764 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Grimes | 1 | 433K | 7.61M | May 1994 – Apr 2026 |
| Post Oak O-3-26694 | CML Exploration, LLC only | Madisonville, W. (Woodbine -A-) | Grimes | 2 | 397K | 1.99M | Dec 2014 – Apr 2026 |
| Hayes O-3-26695 | CML Exploration, LLC only | Madisonville, W. (Woodbine -A-) | Grimes | 2 | 392K | 845K | Sep 2014 – Apr 2026 |
| Kagg O-3-25957 | CML Exploration, LLC only | Madisonville, W. (Woodbine -A-) | Grimes | 2 | 369K | 2.02M | Jun 2012 – Apr 2026 |
| R.B. Clary O-3-25697 | CML Exploration, LLC only | Madisonville, W. (Woodbine -A-) | Grimes | 1 | 352K | 539K | Mar 2011 – Apr 2026 |
| Selected Lands - House Unit G-3-151557 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Grimes | 1 | 343K | 2.46M | Oct 1994 – Apr 2026 |
| Holth O-3-26325 | Pride Energy Company only | Madisonville, W. (Woodbine -A-) | Grimes | 5 | 328K | 2.41M | Mar 2013 – Apr 2026 |
| Mineral Springs G-3-154723 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Grimes | 1 | 308K | 2.17M | May 1995 – Apr 2026 |
| Knotts-Yeager Unit O-3-24560 | CML Exploration, LLC only | Iola (Georgetown) | Grimes | 1 | 297K | 963K | Jun 2004 – Apr 2026 |
| Stout OL G-3-151741 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Grimes | 1 | 278K | 4.82M | Sep 1994 – Apr 2026 |
| Holth G-3-195794 | Pride Energy Company only | Iola (Georgetown) | Grimes | 1 | 274K | 521K | Mar 2003 – Jan 2019 |
| Nevill O-3-25502 | CML Exploration, LLC only | Madisonville, W. (Woodbine -A-) | Grimes | 1 | 260K | 369K | Mar 2010 – Apr 2026 |
| T.M.P.A. G-3-151503 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Grimes | 1 | 249K | 1.78M | Sep 1994 – Apr 2026 |
| Beal O-3-25653 | CML Exploration, LLC only | Madisonville, W. (Woodbine -A-) | Grimes | 1 | 249K | 324K | Oct 2010 – Apr 2026 |
| Flora O-3-26534 | CML Exploration, LLC only | Madisonville, W. (Woodbine -A-) | Grimes | 1 | 246K | 463K | Aug 2013 – Apr 2026 |
| Franks OL G-3-153549 | Chesapeake Operating, Inc. only | Giddings (Austin Chalk, Gas) | Grimes | 1 | 233K | 1.63M | Dec 1994 – Jan 2001 |
| Wheaton Cattle Company 2 O-3-26644 | Trailblazer Energy Resources,llc only | Madisonville, W. (Woodbine -A-) | Grimes | 1 | 221K | 933K | Apr 2014 – Apr 2026 |
| William O-3-25716 | CML Exploration, LLC only | Madisonville, W. (Woodbine -A-) | Grimes | 1 | 219K | 395K | Apr 2011 – Apr 2026 |
| Churchwell Unit G-3-154536 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Grimes | 1 | 210K | 1.9M | May 1995 – Jun 2022 |
| Willie O-3-25805 | CML Exploration, LLC only | Madisonville, W. (Woodbine -A-) | Grimes | 1 | 200K | 407K | Oct 2011 – Apr 2026 |
| Philip DL G-3-151747 | Evolution Operating Co., Inc. only | Giddings (Austin Chalk, Gas) | Grimes | 1 | 196K | 4.98M | Sep 1994 – Mar 2015 |
| Giles G-3-156485 | Chesapeake Operating, Inc. only | Giddings (Austin Chalk, Gas) | Grimes | 1 | 196K | 613K | Sep 1995 – Mar 2000 |
| Isbell O-3-25737 | CML Exploration, LLC only | Madisonville, W. (Woodbine -A-) | Grimes | 1 | 195K | 278K | Jul 2011 – Apr 2026 |
| West Cannon Unit G-3-263818 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Grimes | 1 | 194K | 1.39M | Aug 2011 – Apr 2026 |
| Ozelle Davis Unit O-3-22703 | CML Exploration, LLC only | Iola (Georgetown) | Grimes | 1 | 193K | 2.72M | Jan 1995 – Feb 2007 |
| Law St O-3-25753 | Prime Operating Company only | Law Ridge (Yegua 3780) | Grimes | 1 | 192K | 95K | Jan 2011 – Feb 2025 |
| Tommie Carroll O-3-27124 | Wildfire Energy Operating LLC only | Madisonville, W. (Woodbine -A-) | Grimes | 1 | 191K | 492K | Jul 2014 – Mar 2026 |
| Hassler Unit O-3-22432 | Setex Oil and Gas Company only | Iola (Georgetown) | Grimes | 1 | 189K | 408K | May 1994 – Sep 1999 |
| Della O-3-26943 | CML Exploration, LLC only | Madisonville, W. (Woodbine -A-) | Grimes | 1 | 188K | 214K | Jun 2014 – Apr 2026 |
| Franus Unit G-3-156437 | Union Pacific Resources Company only | Giddings (Austin Chalk, Gas) | Grimes | 1 | 187K | 2.41M | Sep 1995 – Feb 2000 |
| Cannon Unit G-3-155696 | Union Pacific Resources Company only | Giddings (Austin Chalk, Gas) | Grimes | 1 | 179K | 1.28M | Jun 1995 – Aug 1999 |
| Wheaton Cattle Company O-3-26294 | Trailblazer Energy Resources,llc only | Madisonville, W. (Woodbine -A-) | Grimes | 1 | 178K | 666K | May 2013 – Apr 2026 |
| Dalbosco Unit O-3-22514 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Grimes | 1 | 177K | 676K | Jul 1994 – May 2012 |
| Laura OL G-3-161341 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk, Gas) | Grimes | 1 | 174K | 2.83M | Aug 1996 – Mar 2026 |
| White-Springer O-3-25319 | CML Exploration, LLC only | Madisonville, W. (Woodbine -A-) | Grimes | 1 | 173K | 206K | Jan 2009 – Apr 2026 |
| Piedmont G-3-157698 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk, Gas) | Grimes | 1 | 173K | 4.65M | Nov 1995 – Dec 2012 |
| Tmpa Unit G-3-152196 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Grimes | 1 | 170K | 1.37M | Oct 1994 – Apr 2020 |
| Selected Lands Unit #2 O-3-22852 | Evolution Operating Co., Inc. only | Iola (Georgetown) | Grimes | 1 | 164K | 566K | Oct 1995 – Jul 2016 |
| WS O-3-26515 | CML Exploration, LLC only | Madisonville, W. (Woodbine -A-) | Grimes | 1 | 161K | 442K | Nov 2013 – Apr 2026 |
| SNR OL O-3-22484 | Chesapeake Operating, Inc. only | Giddings (Austin Chalk-3) | Grimes | 1 | 160K | 749K | May 1994 – Nov 1994 |
| SNR OL G-3-152642 | Chesapeake Operating, Inc. only | Giddings (Austin Chalk, Gas) | Grimes | 1 | 157K | 823K | Dec 1994 – Jan 2001 |
| Beard OL G-3-150988 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Grimes | 1 | 157K | 11.8M | Aug 1994 – Apr 2026 |
| Allen, A. G. Unit G-3-154144 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Grimes | 1 | 155K | 1.91M | Apr 1995 – Apr 2017 |