| Couey, M. L. -A- O-9-6768 | Citation Oil & Gas Corp. only | Calvin (Dean) | Glasscock | 2 | 3.71K | 36.5K | Jan 1993 – Oct 1995 |
| Howard, Wm. O-9-6525 | Roberts & Hammack, Inc. only | Calvin (Dean) | Glasscock | 3 | 3.7K | 23.6K | Jan 1993 – Oct 1995 |
| Glass -X- O-10-26801 | King Energy Resources only | Conger (Penn) | Glasscock | 1 | 3.68K | 210K | Jan 1993 – Apr 2026 |
| Pac "52B" O-10-35616 | Devon Energy Production Co, L.P. only | Enigma (Wolfcamp) | Glasscock | 1 | 3.67K | 5.94K | Dec 1997 – Feb 2000 |
| Howard, William 31 O-9-6538 | Westland Oil Development Corp. only | Calvin (Dean) | Reagan | 3 | 3.66K | 19K | Jan 1993 – Oct 1995 |
| Blalock O-10-34102 | Trend Exploration Company only | Blalock (Wolfcamp) | Glasscock | 1 | 3.64K | 6.42K | Feb 1994 – Mar 1996 |
| Arnold O-9-14096 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Glasscock | 2 | 3.64K | 6.41K | Nov 1995 – Aug 1998 |
| Glasscock 'W' Fee G-10-149855 | Burk Royalty Co., Ltd. only | Conger, SW (Penn) | Glasscock | 1 | 3.61K | 288K | May 1994 – Apr 2026 |
| Glasscock 'V' Fee G-10-148856 | Burk Royalty Co., Ltd. only | Conger (Penn) | Glasscock | 1 | 3.6K | 396K | Mar 1994 – Apr 2026 |
| Houston -23- O-10-29533 | Hendon Wm E. Jr. Rev Lvng Trust only | Hei (Wolfcamp) | Glasscock | 1 | 3.58K | 170 | Jan 1993 – Mar 2019 |
| Couey, M. L. -B- O-9-6920 | Citation Oil & Gas Corp. only | Calvin (Dean) | Glasscock | 1 | 3.55K | 35.2K | Jan 1993 – Oct 1995 |
| Glasscock "W" Fee G-10-204153 | Chevron U. S. A. Inc. only | Block 32 (Wolfcamp) | Glasscock | 1 | 3.52K | 29.9K | Nov 2003 – Sep 2011 |
| Cook O-10-33501 | Arkland Producing Co., Inc. only | Dewey Lake, S. (Wolfcamp) | Glasscock | 1 | 3.52K | 2.3K | Jan 1993 – Feb 1997 |
| Glasscock 'V' Fee G-10-149808 | Burk Royalty Co., Ltd. only | Conger (Penn) | Glasscock | 1 | 3.51K | 188K | Jun 1994 – Apr 2026 |
| Schwertner, Frank O-9-8054 | Parker & Parsley Development L.P only | Calvin (Dean) | Glasscock | 3 | 3.5K | 21.2K | Jan 1993 – Oct 1995 |
| Glass 216 O-10-46250 | Laredo Petroleum, Inc. only | Garden City, S. (Wolfcamp) | Glasscock | 1 | 3.5K | 8.36K | Mar 2015 – Feb 2016 |
| Driver, J.W. -36- O-10-23500 | Arco Oil & Gas Co. only | Spraberry(trend Area Dean-Wlfcp) | Glasscock | 4 | 3.5K | 4.93K | Jan 1993 – Feb 1993 |
| Watson, J. E. O-10-25670 | Anadarko E&P Company LP only | Conger, SW (Penn) | Sterling | 5 | 3.49K | 239K | Jan 1993 – Jan 2001 |
| Magnolia-Roberts O-10-41317 | Apv McCamey LLC only | Howard Glasscock (Consolidated) | Glasscock | 9 | 3.49K | 0 | Dec 2011 – Apr 2021 |
| Currie, G. W. O-10-48130 | Shinnery Oil Company, Inc. only | Clyde-Reynolds (Wolfcamp Cons.) | Glasscock | 1 | 3.46K | 44.5K | Dec 2014 – Apr 2026 |
| Jurecek "A" O-10-24689 | Tamarack Petroleum Company, Inc. only | Spraberry (Trend Area) | Glasscock | 1 | 3.46K | 10.2K | Jan 1993 – Nov 1998 |
| Jurecek "D" G-10-195344 | Diamondback E&P LLC only | St. Lawrence S. (Strawn) | Glasscock | 1 | 3.44K | 330K | Dec 2002 – Apr 2026 |
| Hoelscher, F. J. "B" G-10-173336 | Extex Operating Company only | Frysak Farms (Devonian) | Glasscock | 1 | 3.43K | 409K | May 1999 – Mar 2026 |
| Curry 17 O-10-52076 | Burk Royalty Co., Ltd. only | Spraberry (Trend Area) | Glasscock | 1 | 3.43K | 35.4K | Jan 2019 – Apr 2026 |
| Allein G-10-152024 | Burk Royalty Co., Ltd. only | Conger (Penn) | Glasscock | 1 | 3.4K | 273K | Dec 1994 – Apr 2026 |
| Bigby-Neely O-9-6775 | Citation Oil & Gas Corp. only | Calvin (Dean) | Glasscock | 1 | 3.4K | 24.1K | Jan 1993 – Oct 1995 |
| Zant, J. B. O-10-23627 | Texas Investments only | Spraberry (Trend Area) | Glasscock | 2 | 3.37K | 5.09K | Jan 1993 – Feb 1997 |
| Currie O-10-35290 | Mineral Technologies, Inc. only | Garden City | Glasscock | 1 | 3.37K | 8.75K | Mar 1997 – Mar 2019 |
| Weyman "D" O-10-24010 | Alleder Inc. only | Spraberry (Trend Area) | Glasscock | 1 | 3.37K | 7.41K | Jan 1993 – Mar 1998 |
| Howard, William 31 O-9-14284 | Endeavor Energy Resources L.P. only | Spraberry (Trend Area) | Reagan | 3 | 3.36K | 11.5K | Nov 1995 – Apr 2000 |
| Glasscock 'AB' Fee O-10-57993 | Burk Royalty Co., Ltd. only | Spraberry (Trend Area) | Sterling | 5 | 3.36K | 78.8K | Feb 2022 – Apr 2026 |
| Lane, W.H. "37" O-10-24845 | Arco Oil & Gas Co. only | Spraberry(trend Area Dean-Wlfcp) | Glasscock | 3 | 3.35K | 6.87K | Jan 1993 – Feb 1993 |
| Driver, J.W. -36- O-10-49951 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Glasscock | 2 | 3.33K | 164 | Apr 2018 – Aug 2021 |
| Glasscock 'S' Fee G-10-149834 | Burk Royalty Co., Ltd. only | Conger, SW (Penn) | Glasscock | 1 | 3.33K | 391K | Apr 1994 – Apr 2026 |
| Superior O-10-23902 | Cox, John L. only | Spraberry (Trend Area) | Glasscock | 2 | 3.3K | 8.39K | Jan 1993 – Feb 1995 |
| Cox, C. J. "C" O-9-11906 | Parker & Parsley Development L.P only | Calvin (Dean) | Glasscock | 1 | 3.29K | 28.9K | Jan 1993 – Oct 1995 |
| Hutchison, W.A. -A- O-9-8623 | Stephens, Autry C. only | Calvin (Dean) | Glasscock | 1 | 3.29K | 14.5K | Jan 1993 – Oct 1995 |
| Roberts, Dora -B- O-10-41313 | Apv McCamey LLC only | Howard Glasscock (Consolidated) | Glasscock | 4 | 3.27K | 0 | Dec 2011 – Apr 2021 |
| Terry, I. W. 'A' O-10-36799 | Discovery Natural Resources LLC only | Barbee, NE (Wichita-Albany) | Glasscock | 1 | 3.26K | 94.9K | Sep 2001 – Jan 2026 |
| Hillger, Bertha O-10-52975 | Diamondback E&P LLC only | Spraberry (Trend Area) | Glasscock | 1 | 3.26K | 665 | Sep 2019 – Apr 2026 |
| Halfmann, Delbert G-10-147951 | XTO Energy Inc. only | Saint Lawrence (Strawn) | Glasscock | 1 | 3.25K | 351K | Dec 1993 – Apr 2024 |
| Little Whit O-10-26678 | Western Reserves Oil Company Inc only | Big Whit(wolfcamp) | Glasscock | 1 | 3.24K | 11K | Jan 1993 – Apr 1994 |
| Glasscock 'V' Fee G-10-149805 | Burk Royalty Co., Ltd. only | Conger (Penn) | Glasscock | 1 | 3.23K | 299K | Apr 1994 – Apr 2026 |
| Ratliff -5- O-10-30750 | Edmar Company, L.L.C. only | Dewey Lake, S. (Strawn) | Glasscock | 1 | 3.23K | 179K | Jan 1993 – Jan 2007 |
| Halfman -A- O-10-27333 | Nadel and Gussman Permian,l.l.c. only | Spraberry (Trend Area) | Glasscock | 1 | 3.23K | 29.2K | Jan 1993 – Aug 2000 |
| Angelina SN 33-28 08 G-10-298301 | Hannathon Petroleum II, LLC only | Spraberry (Trend Area) | Glasscock | 1 | 3.2K | 527K | Aug 2024 – Apr 2026 |
| Watson, J. E. G-10-153131 | P1 Energy, LLC only | Conger, SW (Penn) | Glasscock | 1 | 3.19K | 208K | Dec 1994 – Aug 2011 |
| McDaniel Brothers "A" O-10-30779 | Endeavor Energy Resources L.P. only | McDaniel (Wolfcamp) | Glasscock | 1 | 3.14K | 15.9K | Jan 1993 – Mar 2001 |
| Lee O-10-41113 | Greenstone Energy, LLC only | Howard Glasscock (Consolidated) | Glasscock | 2 | 3.12K | 0 | Jun 2012 – Mar 2026 |
| Lee O-10-2808 | Coronado Minerals, LLC only | Howard Glasscock | Glasscock | 5 | 3.11K | 6 | Jan 1993 – Mar 2011 |