| Helen Crump B O-10-39936 | Diamondback E&P LLC only | Sallie Ann (Spraberry-Wolfcamp) | Ector | 8 | 1M | 4.09M | Dec 2009 – Jul 2026 |
| Crump 48 O-10-36666 | Crownquest Operating, LLC only | Crownquest (Devonian) | Crane | 6 | 954K | 790K | Apr 2001 – Jul 2026 |
| Crump, Louise O-13-25914 | EOG Resources, Inc. only | Elm Fork (6550) | Montague | 4 | 348K | 33.3K | Jan 1993 – Feb 2017 |
| Crump Est. "B" O-11-64872 | Crescent Energy Operating, LLC only | Tex-Mex, SE. (Wichita Albany) | Gaines | 11 | 323K | 393K | Jan 1993 – Jul 2026 |
| Crump Est. "A" O-11-64591 | Crescent Energy Operating, LLC only | Tex-Mex, SE. (Wichita Albany) | Gaines | 15 | 240K | 710K | Jan 1993 – Jul 2026 |
| Crump Estate "A" O-11-65535 | Sandridge Expl. and Prod., LLC only | Tex-Mex, SE. (San Andres) | Gaines | 7 | 227K | 110K | Jan 1993 – Feb 2011 |
| Crump O-11-67353 | Raw Oil & Gas, Inc. only | Tobe (Strawn) | Garza | 1 | 196K | 50.3K | Feb 1995 – Oct 2007 |
| Crump O-13-30414 | EOG Resources, Inc. only | St. JO Ridge (Barnett Shale) | Montague | 4 | 172K | 2.01M | Mar 2005 – Jul 2026 |
| Hce HM 06 O-1-19337 | Fulcrum Energy Operating, LLC only | Briscoe Ranch (Eagleford) | Frio | 1 | 143K | 276K | Sep 2017 – Jul 2026 |
| Crump-Lucas Unit 2 O-13-30241 | EOG Resources, Inc. only | St. JO Ridge (Barnett Shale) | Montague | 1 | 134K | 864K | Dec 2003 – Jul 2026 |
| Crump "48A" O-10-37694 | Crownquest Operating, LLC only | Crownquest (Devonian) | Crane | 2 | 134K | 104K | Feb 2006 – Jul 2026 |
| Hce HM 05 O-1-19133 | Fulcrum Energy Operating, LLC only | Briscoe Ranch (Eagleford) | Frio | 1 | 131K | 364K | Feb 2017 – Jul 2026 |
| Hce HM 10 O-1-18660 | Fulcrum Energy Operating, LLC only | Pearsall (Buda, S.) | Frio | 1 | 125K | 155K | Sep 2014 – Jul 2026 |
| Crump Estate 09A O-11-70705 | Crescent Energy Operating, LLC only | Dempsey Creek (San Andres) | Gaines | 1 | 124K | 206K | Mar 2018 – Jul 2026 |
| Hce BB 05S O-1-19079 | Fulcrum Energy Operating, LLC only | Briscoe Ranch (Eagleford) | Frio | 1 | 110K | 464K | May 2017 – Jul 2026 |
| Crum 212 O-14-9363 | Mewbourne Oil Company only | Pan Petro (Cleveland) | Ochiltree | 1 | 98.4K | 474K | May 2015 – Jul 2026 |
| Hce HM 04 O-1-18945 | Fulcrum Energy Operating, LLC only | Briscoe Ranch (Eagleford) | Frio | 1 | 97.1K | 157K | Jul 2016 – Jul 2026 |
| Crump Estate "C" O-11-65551 | Crescent Energy Operating, LLC only | Tex-Mex, SE. (Wichita Albany) | Gaines | 5 | 95.8K | 101K | Jan 1993 – Jul 2026 |
| Helen Crump O-10-38775 | Devon Energy Production Co, L.P. only | Sallie Ann (Spraberry-Wolfcamp) | Ector | 1 | 92.7K | 74.8K | Jan 2008 – Dec 2009 |
| Hce JN 01 O-1-19148 | Fulcrum Energy Operating, LLC only | Briscoe Ranch (Eagleford) | Frio | 1 | 86.7K | 76.4K | Mar 2017 – Jul 2026 |
| Crump-Lucas Unit #1 O-13-30167 | EOG Resources, Inc. only | St. JO Ridge (Barnett Shale) | Montague | 1 | 85.6K | 461K | May 2003 – Nov 2018 |
| Hce St 01 O-1-18969 | Fulcrum Energy Operating, LLC only | Briscoe Ranch (Eagleford) | Frio | 1 | 85.3K | 331K | Aug 2016 – Jul 2026 |
| Hce BB 01 O-1-18633 | Fulcrum Energy Operating, LLC only | Pearsall (Buda, S.) | Frio | 1 | 80.9K | 511K | Feb 2014 – Jul 2026 |
| Hce HT 02 O-1-18829 | Fulcrum Energy Operating, LLC only | Briscoe Ranch (Eagleford) | Frio | 1 | 78.3K | 44.4K | Dec 2015 – Jul 2026 |
| Hce BB 05N O-1-19080 | Fulcrum Energy Operating, LLC only | Briscoe Ranch (Eagleford) | Frio | 1 | 73.3K | 503K | May 2017 – Jul 2026 |
| Hce HM 07 O-1-18734 | Fulcrum Energy Operating, LLC only | Pearsall (Buda, S.) | Frio | 1 | 70.6K | 92K | Nov 2015 – Jul 2026 |
| Hce BB 03 O-1-18635 | Fulcrum Energy Operating, LLC only | Pearsall (Buda, S.) | Frio | 1 | 55.1K | 364K | Oct 2014 – Jul 2026 |
| Crump O-11-68753 | D & D Oil Co. #2 only | Rocker -a-, South (Glorieta) | Garza | 7 | 52.5K | 0 | Mar 2005 – Jul 2026 |
| Crump, J. L. O-10-18581 | Petex only | Block a-28 (Wichita-Albany) | — | 1 | 49.4K | 70.5K | Jan 1993 – Jul 2026 |
| Crump, J. O. O-8-10487 | Stovall Operating Co. only | Throckmorton County Regular | — | 2 | 49.3K | 14.4K | Jan 1993 – May 2022 |
| Crumpacker O-14-1780 | Pantera Energy Company only | Panhandle Carson County Field | Carson | 11 | 48.1K | 281K | Jan 1993 – Jul 2026 |
| Mrs. M. E. Crum O-10-27837 | Gruy Petroleum Management Co. only | Keystone (Holt) | Winkler | 8 | 47K | 149K | Jan 1993 – Apr 2002 |
| Crum 1183 O-14-9362 | Resource Oil and Gas, LLC only | Allen-Parker (Marmaton) | Ochiltree | 1 | 46.9K | 32.6K | Jan 2015 – Jul 2026 |
| Hce HT 02 O-1-18495 | Fulcrum Energy Operating, LLC only | Pearsall (Buda, S.) | Frio | 1 | 44.7K | 86.9K | Aug 2014 – Jul 2026 |
| S McKnight O-1-18293 | Fulcrum Energy Operating, LLC only | Pearsall (Austin Chalk) | Dimmit | 1 | 44.6K | 156K | Nov 2014 – Jul 2026 |
| Crump Unit O-13-33521 | EOG Resources, Inc. only | Newark, East (Barnett Shale) | Montague | 1 | 42.7K | 1.53M | Oct 2013 – Jul 2026 |
| Allar Co. O-13-21764 | D L Operating only | Crum (Marble Falls) | Jack | 3 | 41.9K | 545K | Jan 1993 – Jul 2026 |
| Crump Est. "C" O-11-66724 | Sandridge Expl. and Prod., LLC only | Tex-Mex, SE. (San Andres) | Gaines | 2 | 41.5K | 12.7K | Jan 1993 – Nov 2010 |
| Hce CR 01 O-1-18791 | Fulcrum Energy Operating, LLC only | Pearsall (Buda, S.) | Frio | 1 | 39.3K | 436K | Dec 2015 – Jul 2026 |
| Wilton O-13-22931 | M & a Oil Company, Ltd. only | Crum (Marble Falls) | Jack | 1 | 38K | 98K | Jan 1993 – Jul 2026 |
| Crump '424' O-11-69838 | Burk Royalty Co., Ltd. only | Brahaney | Yoakum | 3 | 36.2K | 0 | Feb 2012 – Jul 2026 |
| Allar Company "A" O-13-25354 | D L Operating only | Crum (Marble Falls) | Jack | 1 | 34.6K | 333K | Jan 1993 – Jul 2026 |
| Crum, Mrs M.E. O-10-34845 | Prize Operating Company only | Keystone (Holt) | Winkler | 1 | 33.9K | 77.5K | Jan 1996 – Jun 2001 |
| Crump O-10-20920 | Western Reserves Oil Company Inc only | Block a-28 (Wichita-Albany) | — | 2 | 31.2K | 24K | Jan 1993 – Oct 2009 |
| Crump, R. M. O-13-15864 | Aeternum Energy, LLC only | B. Ann (Strawn) | Cooke | 1 | 28.8K | 16 | Jan 1993 – Jul 2026 |
| Hce HM 08 O-1-17712 | Fulcrum Energy Operating, LLC only | Pearsall (Buda, S.) | Frio | 1 | 27.8K | 52.2K | Dec 2013 – Jul 2026 |
| CCC Unit O-13-26740 | Crump Operating only | Blue Grove, South (Bryson) | Clay | 14 | 27.6K | 6.41K | Jan 1993 – Jul 2026 |
| Easter O-13-30783 | Best Petroleum Explorations,inc. only | Crum (Marble Falls) | Jack | 1 | 24.8K | 321K | Mar 2007 – Jul 2026 |
| Crumpton-Williams O-13-19281 | Ray Herring Operating Co., LLC only | Scan (Congl) | Palo Pinto | 9 | 24.6K | 156K | Jan 1993 – Nov 2025 |
| Crump, W. E. O-13-27288 | Rocky Point Oil, Inc. only | Clay County Regular | Clay | 1 | 23.4K | 227K | Jan 1993 – Jul 2026 |