| Glasscock, Howard W. (G-S) Unit O-10-22575 | Sheridan Production Company, LLC only | Howard Glasscock | Glasscock | 287 | 4.42M | 70.5K | by Jan 1993 – Nov 2011 |
| Settles, W. R. -A- O-10-2704 | Conocophillips Company only | Howard Glasscock | Howard | 138 | 3.07M | 72.3K | by Jan 1993 – Nov 2011 |
| Calverley, J. B., -A- O-10-20788 | Mewbourne Oil Company only | Garden City, W. (Wolfcamp 7880) | Glasscock | 5 | 1.21M | 3.09M | by Jan 1993 – Sep 2019 |
| Driver '33' O-10-41449 | McClure Oil Company, Inc. only | Veterans (Upper Leonard) | Glasscock | 13 | 1.2M | 2.03M | Apr 2011 – Aug 2026 |
| Settles-Yates Unit O-10-20060 | Conocophillips Company only | Howard Glasscock | Howard | 84 | 1.08M | 34.3K | by Jan 1993 – Nov 2011 |
| Driver '28' O-10-41963 | McClure Oil Company, Inc. only | Veterans (Upper Leonard) | Glasscock | 8 | 806K | 1.93M | Aug 2011 – Aug 2026 |
| Roberts, Dora O-10-2774 | Conocophillips Company only | Howard Glasscock | Howard | 55 | 607K | 2.33K | by Jan 1993 – Nov 2011 |
| Calverley, J. B., Estate O-10-20204 | Mewbourne Oil Company only | Garden City, W. (Wolfcamp 7880) | Glasscock | 6 | 567K | 2.98M | by Jan 1993 – Sep 2019 |
| Archer O-10-39634 | McClure Oil Company, Inc. only | Veterans (Upper Leonard) | Glasscock | 10 | 477K | 1.1M | Sep 2009 – Aug 2026 |
| Bloodworth 39 O-10-52740 | McClure Oil Company, Inc. only | Marne (Leonard) | Glasscock | 10 | 466K | 533K | Aug 2018 – Aug 2026 |
| Calverley 42/31 A O-10-52708 | Mewbourne Oil Company only | Spraberry (Trend Area) | Glasscock | 1 | 337K | 367K | Jul 2019 – Aug 2026 |
| Driver '20' O-10-43987 | McClure Oil Company, Inc. only | Veterans (Upper Leonard) | Glasscock | 6 | 334K | 176K | Jan 2013 – Aug 2026 |
| Glasscock Unit 44/41 O-10-52303 | Mewbourne Oil Company only | Spraberry (Trend Area) | Glasscock | 1 | 329K | 549K | May 2019 – Aug 2026 |
| Calverley 43/6 A O-10-52725 | Mewbourne Oil Company only | Spraberry (Trend Area) | Glasscock | 1 | 321K | 593K | Jul 2019 – Aug 2026 |
| Books, E. C. O-10-33259 | Hunt Oil Company only | Patterson Lake (Wolfcamp) | Glasscock | 6 | 309K | 3.09M | by Jan 1993 – Oct 2019 |
| Garden City "6" O-10-35655 | Mewbourne Oil Company only | Garden City, W. (Wolfcamp 7880) | Glasscock | 3 | 296K | 705K | Sep 1997 – Jul 2010 |
| Glasscock Unit 44/41 B O-10-54283 | Mewbourne Oil Company only | Spraberry (Trend Area) | Glasscock | 1 | 293K | 606K | Sep 2020 – Aug 2026 |
| Moc-Seidenberger '29' O-10-42139 | McClure Oil Company, Inc. only | Veterans (Upper Leonard) | Glasscock | 4 | 277K | 339K | May 2011 – Aug 2026 |
| Powell "21D" O-10-34459 | Range Production Company only | Cobra (Wolfcamp) | Glasscock | 1 | 258K | 477K | Apr 1995 – Mar 2005 |
| Driver 20 A O-10-45038 | McClure Oil Company, Inc. only | Veterans (Upper Leonard) | Glasscock | 2 | 246K | 317K | Nov 2013 – Aug 2026 |
| Calverley 43/6 B O-10-56287 | Mewbourne Oil Company only | Spraberry (Trend Area) | Glasscock | 1 | 239K | 507K | Aug 2021 – Aug 2026 |
| Calverley 43/6 D O-10-56294 | Mewbourne Oil Company only | Spraberry (Trend Area) | Glasscock | 1 | 238K | 452K | Aug 2021 – Aug 2026 |
| Calverley 43/6 C O-10-56268 | Mewbourne Oil Company only | Spraberry (Trend Area) | Glasscock | 1 | 236K | 369K | Aug 2021 – Aug 2026 |
| Overton, B. -A- O-10-2701 | Conocophillips Company only | Howard Glasscock | Glasscock | 29 | 230K | 11.5K | by Jan 1993 – Nov 2011 |
| Lpi-Spangler 44 O-10-45125 | Crescent Energy Operating, LLC only | Garden City, S. (Wolfcamp) | Glasscock | 2 | 192K | 498K | Apr 2014 – Jul 2026 |
| M. M. Edwards O-10-20161 | MGM Oil & Gas Company only | Howard Glasscock | Glasscock | 10 | 191K | 72 | by Jan 1993 – Nov 2011 |
| Glass 46 O-10-39664 | McClure Oil Company, Inc. only | Veterans (Upper Leonard) | Glasscock | 5 | 175K | 232K | Oct 2009 – Jul 2026 |
| Calverley 42/31 B O-10-57698 | Mewbourne Oil Company only | Spraberry (Trend Area) | Glasscock | 1 | 157K | 265K | Jul 2022 – Aug 2026 |
| T. X. L. -5- O-10-29959 | Prime Operating Company only | Spraberry (Trend Area) | Glasscock | 2 | 153K | 413K | by Jan 1993 – Aug 2026 |
| Hall O-10-2683 | MGM Oil & Gas Company only | Howard Glasscock | Glasscock | 3 | 142K | 63 | by Jan 1993 – Nov 2011 |
| Calverley 42/31 C O-10-57690 | Mewbourne Oil Company only | Spraberry (Trend Area) | Glasscock | 1 | 142K | 244K | Jul 2022 – Jul 2026 |
| Settles-Yates Unit O-10-41256 | Conocophillips Company only | Howard Glasscock (Consolidated) | Howard | 34 | 131K | 1.05K | Dec 2011 – Aug 2014 |
| Calverley 42/31 D O-10-57695 | Mewbourne Oil Company only | Spraberry (Trend Area) | Glasscock | 1 | 127K | 170K | Jul 2022 – Aug 2026 |
| Hutchison, W. A.-18 O-10-6279 | Hunt Oil Company only | Spraberry (Trend Area) | Glasscock | 7 | 113K | 219K | by Jan 1993 – Dec 2012 |
| Hoch '29' O-10-43165 | McClure Oil Company, Inc. only | Veterans (Upper Leonard) | Glasscock | 2 | 107K | 55.3K | Feb 2012 – Aug 2026 |
| Settles, W. R. -C- O-10-10806 | Conocophillips Company only | Howard Glasscock | Howard | 24 | 102K | 8.18K | by Jan 1993 – Nov 2011 |
| Powell "2" O-10-33661 | Trend Exploration Company only | Cobra (Wolfcamp) | Glasscock | 1 | 101K | 571K | by Jan 1993 – Oct 1994 |
| McClure TXL '11' O-10-41342 | McClure Oil Company, Inc. only | Clyde-Reynolds (Wolfcamp Cons.) | Glasscock | 2 | 91K | 345K | May 2011 – Aug 2026 |
| Glass "40" O-10-39674 | McClure Oil Company, Inc. only | Veterans (Upper Leonard) | Glasscock | 3 | 90.9K | 104K | Sep 2009 – Aug 2026 |
| Cole '4' O-10-43601 | McClure Oil Company, Inc. only | Clyde-Reynolds (Wolfcamp Cons.) | Glasscock | 1 | 81.7K | 209K | Apr 2012 – Aug 2026 |
| Archer O-10-38754 | McClure Oil Company, Inc. only | St. Lawrence, NE. (Leonard) | Glasscock | 2 | 79.7K | 44.7K | Jul 2007 – Oct 2009 |
| La Vista "45" O-10-36740 | Mewbourne Oil Company only | La Vista (Fusselman) | Glasscock | 1 | 79K | 90K | Oct 2001 – Oct 2013 |
| Hillger "B" O-10-35686 | Dyad Petroleum Company only | Cobra (Wolfcamp) | Glasscock | 1 | 78.8K | 139K | Dec 1997 – Oct 2007 |
| TXL '3' O-10-41378 | McClure Oil Company, Inc. only | Clyde-Reynolds (Wolfcamp Cons.) | Glasscock | 2 | 76.8K | 226K | Mar 2011 – Aug 2026 |
| Becknell "A" O-10-35610 | Dyad Petroleum Company only | Cobra (Wolfcamp) | Glasscock | 1 | 75K | 313K | Jan 1998 – Mar 2010 |
| TXL '15' O-10-43170 | McClure Oil Company, Inc. only | Clyde-Reynolds (Wolfcamp Cons.) | Glasscock | 1 | 73.2K | 202K | Jul 2012 – Aug 2026 |
| Calverley, J. B. Estate O-10-40015 | Mewbourne Oil Company only | Spraberry (Trend Area) | Glasscock | 6 | 65.8K | 248K | Feb 2010 – Aug 2026 |
| TXL '9' O-10-44254 | McClure Oil Company, Inc. only | Clyde-Reynolds (Wolfcamp Cons.) | Glasscock | 1 | 60.7K | 93.9K | Mar 2013 – Aug 2026 |
| Turner, Sam O-10-2794 | Richmond Drilling Company, Inc. only | Howard Glasscock | Glasscock | 1 | 59.5K | 11.9K | by Jan 1993 – Oct 2014 |
| Smith Unit O-10-34614 | PPC Operating Company LLC only | Mustang (Fusselman) | Glasscock | 1 | 56.9K | 110K | Aug 1995 – Jun 2012 |