| Harvard McClintic 31-30 O-10-50299 | Diamondback E&P LLC only | Spraberry (Trend Area) | Midland | 2 | 872K | 1.78M | Feb 2018 – Apr 2026 |
| Glaspie-Harvard 11K O-10-60584 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 523K | 721K | May 2024 – Apr 2026 |
| Glaspie-Harvard 11J O-10-60835 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 451K | 753K | May 2024 – Apr 2026 |
| Glaspie-Harvard 11Q O-10-60808 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 437K | 887K | Apr 2024 – Apr 2026 |
| Glaspie-Harvard 11N O-10-60901 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 423K | 547K | Apr 2024 – Apr 2026 |
| Glaspie-Harvard 11P O-10-60583 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 391K | 586K | Apr 2024 – Apr 2026 |
| Glaspie-Harvard 11L O-10-60840 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 381K | 524K | May 2024 – Apr 2026 |
| Glaspie-Harvard 11G O-10-60807 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 364K | 521K | May 2024 – Apr 2026 |
| Glaspie-Harvard 11H O-10-60903 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 354K | 823K | May 2024 – Apr 2026 |
| Harvard "D" O-10-34004 | Pioneer Natural Res. USA, Inc. only | Silurian Park (Fusselman) | Martin | 1 | 322K | 99.9K | Nov 1993 – Jun 2015 |
| Glaspie-Harvard 11O O-10-60836 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 300K | 576K | Apr 2024 – Apr 2026 |
| Glaspie-Harvard 11M O-10-60661 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 149K | 150K | Apr 2024 – Apr 2026 |
| Harvard "B" O-10-38846 | New Height Energy, LLC only | Spraberry (Trend Area) | Martin | 2 | 148K | 348K | Jun 2008 – Mar 2026 |
| Harvard "46" O-10-39766 | Diamondback E&P LLC only | Spraberry (Trend Area) | Glasscock | 2 | 131K | 224K | Oct 2009 – Apr 2026 |
| McGinty 2 O-11-67778 | Steward Energy II, LLC only | Harvard (Devonian) | Yoakum | 1 | 130K | 0 | Apr 1997 – Nov 2015 |
| McGinty O-11-67142 | Steward Energy II, LLC only | Harvard (Devonian) | Yoakum | 1 | 125K | 28 | Sep 1993 – Jul 2016 |
| Harvard O-10-28711 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 2 | 74.3K | 198K | Jan 1993 – Aug 2023 |
| Harvard O-10-35638 | Diamondback E&P LLC only | Midwest (Spraberry-Dean) | Midland | 1 | 73.1K | 127K | Jan 1998 – Feb 2025 |
| Glaspie-Harvard 11I O-10-60713 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 70.1K | 111K | Sep 2024 – Apr 2026 |
| Lee O-14-2802 | Harvard Petroleum Company, LLC only | Panhandle Collingsworth County | Collingsworth | 12 | 57.1K | 542K | Jan 1993 – Mar 2026 |
| Harvard -C- O-10-20496 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 38.4K | 106K | Jan 1993 – Nov 2012 |
| Harvard -A- O-10-28986 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 36.9K | 92K | Jan 1993 – Feb 2024 |
| Laycock O-14-2964 | Harvard Petroleum Company, LLC only | Panhandle Collingsworth County | Collingsworth | 10 | 22.8K | 293K | Jan 1993 – Mar 2026 |
| Smith O-14-3095 | Harvard Petroleum Company, LLC only | Panhandle Collingsworth County | Collingsworth | 10 | 20.7K | 232K | Jan 1993 – Mar 2026 |
| Bell C O-14-2971 | Harvard Petroleum Company, LLC only | Panhandle Collingsworth County | Collingsworth | 7 | 18.8K | 210K | Jan 1993 – Mar 2026 |
| Hall O-14-2445 | Harvard Petroleum Company, LLC only | Panhandle Wheeler County Field | Wheeler | 7 | 10.3K | 117K | Jan 1993 – Mar 2026 |
| Gayle O-11-67274 | Harvard Petroleum Corporation only | Harvard, W. (Devonian) | Yoakum | 1 | 7.72K | 3 | Jun 1994 – Jan 1995 |
| Harvard -B- O-10-20385 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 6.91K | 22.4K | Jan 1993 – Sep 1999 |
| Pike O-14-7740 | Harvard Petroleum Company, LLC only | Panhandle Wheeler County Field | Wheeler | 7 | 6.12K | 98.6K | Dec 2006 – Mar 2026 |
| Yates O-14-3059 | Harvard Petroleum Company, LLC only | Panhandle Collingsworth County | Collingsworth | 2 | 5.2K | 48.3K | Jan 1993 – Mar 2026 |
| Cochise O-11-67556 | Browning Oil Company, Inc. only | Harvard (Devonian) | Yoakum | 1 | 4.77K | 327 | Mar 1996 – Mar 1997 |
| Bradshaw O-14-7787 | Harvard Petroleum Company, LLC only | Panhandle Wheeler County Field | Wheeler | 2 | 2.8K | 13.9K | Jun 2007 – Mar 2026 |
| Anderson O-9-11769 | Harvard Petroleum Corporation only | Kurt W. Boley (Strawn, Upper) | Tom Green | 1 | 2.11K | 21.8K | Jan 1993 – Jan 1995 |
| Bell O-14-2797 | Harvard Petroleum Company, LLC only | Panhandle Collingsworth County | Collingsworth | 9 | 1.42K | 59.9K | Jan 1993 – Mar 2026 |
| Harvard, B. W. O-5-1873 | Navco Operating Co., Inc. only | Corsicana (Shallow) | Navarro | 11 | 10 | 10 | Jan 1993 – Nov 1993 |
| Harvard O-5-224 | Navco Operating Co., Inc. only | Corsicana (Shallow) | Navarro | 16 | 9 | 9 | Jan 1993 – Nov 1993 |
| Ogu (Harvard, J.M. -7) G-5-134076 | Urban Oil & Gas Group, LLC only | Opelika (Cotton Valley) | Henderson | 1 | 4 | 1.77M | Jan 1993 – Apr 2026 |
| Ogu (Harvard, J. M. -3) G-5-121981 | Urban Oil & Gas Group, LLC only | Opelika (Travis Peak) | Henderson | 1 | 3 | 3.08M | Jan 1993 – Apr 2026 |
| Ogu (Harvard, J. M. -5) G-5-125422 | Urban Oil & Gas Group, LLC only | Opelika (Travis Peak) | Henderson | 1 | 2 | 2.42M | Jan 1993 – Apr 2026 |
| Ogu (Harvard, J. M. -1) G-5-33625 | Urban Oil & Gas Group, LLC only | Opelika (Travis Peak) | Henderson | 1 | 2 | 3.38M | Jan 1993 – Apr 2026 |
| Ogu (Harvard, J. M. -6) G-5-165734 | Urban Oil & Gas Group, LLC only | Opelika (Travis Peak) | Henderson | 1 | 1 | 756K | Jun 1997 – Jan 2026 |
| Ogu (Harvard, J.M. -4) G-5-125615 | Urban Oil & Gas Group, LLC only | Opelika (Travis Peak) | Henderson | 1 | 1 | 912K | Jan 1993 – Mar 2025 |
| O'Brien "478" O-11-61643 | Harvard Petroleum Corporation only | Myrtle, NW. (Strawn) | Borden | 1 | 0 | 0 | — |
| Ogu (Harvard, J.M. -9) G-5-145997 | Urban Oil & Gas Group, LLC only | Opelika (Travis Peak) | Henderson | 1 | 0 | 1.59M | Jun 1993 – Jan 2014 |
| Ogu (Harvard, J.M. -8) G-5-144170 | Urban Oil & Gas Group, LLC only | Opelika (Cotton Valley) | Henderson | 1 | 0 | 1.06M | Jan 1993 – Apr 2026 |
| Eaton Gas Unit G-3-125178 | Harvard Petroleum Corporation only | Easter (1950) | Colorado | 1 | 0 | 0 | — |
| Ogu (Harvard, J. M. -8) G-5-178083 | Urban Oil & Gas Group, LLC only | Opelika (Travis Peak) | Henderson | 1 | 0 | 400K | May 2000 – Oct 2004 |
| Ogu (Harvard, J. M. -2) G-5-120928 | Cross Timbers Operating Company only | Opelika (Cotton Valley) | Henderson | 1 | 0 | 386K | Jan 1993 – Aug 2000 |
| Eaton Gas Unit G-3-46304 | Harvard Petroleum Corporation only | Easter (2050) | Colorado | 1 | 0 | 0 | — |
| Ogu (Harvard, J. M. -2) G-5-179532 | Urban Oil & Gas Group, LLC only | Opelika (Travis Peak) | Henderson | 1 | 0 | 1.18M | Sep 2000 – Apr 2026 |