| Suntura O-11-68185 | Great Western Drilling Company | Suntura (Lower Clear Fork) | Terry | 13 | 1.44M | 186K | Dec 1999 – Sep 2007 |
| Airfield O-11-68702 | Great Western Drilling Company | Linker (Clear Fork) | Hockley | 8 | 694K | 164K | Apr 2004 – Jan 2016 |
| C&H "13" O-11-68765 | Great Western Drilling Company | Linker (Clear Fork) | Hockley | 3 | 462K | 184K | Feb 2005 – Jan 2016 |
| C&H O-11-68764 | Great Western Drilling Company | Linker (Clear Fork) | Hockley | 4 | 410K | 98.6K | Mar 2005 – Jan 2016 |
| Ratliff "18" O-11-68862 | Great Western Drilling Company | Linker (Clear Fork) | Hockley | 5 | 397K | 93.8K | Dec 2005 – Jan 2016 |
| Boggs - Davidson O-11-68415 | Great Western Drilling Company | Suntura (Lower Clear Fork) | Terry | 3 | 296K | 0 | Feb 2002 – Sep 2007 |
| Marcom "12" O-11-68747 | Great Western Drilling Company | Linker (Clear Fork) | Hockley | 2 | 189K | 59.2K | Jan 2005 – Jan 2016 |
| Geodyne O-11-68197 | Great Western Drilling Company | Suntura (Lower Clear Fork) | Terry | 3 | 174K | 19.8K | May 2000 – Sep 2007 |
| Jacobson, M. E. "A" O-11-62783 | Great Western Drilling Company | Kingdom (Abo Reef) | Terry | 1 | 138K | 15.3K | Jan 1993 – Aug 2006 |
| Day, Cacy "A" O-11-8637 | Great Western Drilling Company | Terryon (Glorieta) | Terry | 2 | 132K | 8.9K | Jan 1993 – Jan 2021 |
| Pool O-11-68196 | Great Western Drilling Company | Suntura (Lower Clear Fork) | Terry | 2 | 106K | 22.6K | May 2000 – Sep 2007 |
| Isensee O-4-13612 | Great Western Drilling Company | Saxet ( Frio) | Nueces | 1 | 88.2K | 43.7K | Jul 2010 – Apr 2015 |
| University 46 O-10-34817 | Great Western Drilling Company | War-Wink, E. (7000) | Winkler | 1 | 87.2K | 102K | Jan 1996 – Sep 2016 |
| Mallet O-11-68962 | Great Western Drilling Company | Linker (Clear Fork) | Hockley | 3 | 84.8K | 2.66K | Jun 2006 – Oct 2021 |
| Post Montgomery O-11-68888 | Great Western Drilling Company | Linker (Clear Fork) | Hockley | 1 | 79.8K | 34K | Feb 2006 – Jan 2016 |
| Lawrence, R. M. & L. S. O-4-2552 | Great Western Drilling Company | Saxet | Nueces | 3 | 68.4K | 89.4K | Jan 1993 – Sep 2002 |
| Key (Spraberry) Unit O-11-66772 | Great Western Drilling Company | Key (Spraberry, Upper) | Dawson | 9 | 50.5K | 133 | Jan 1993 – Apr 2012 |
| Jacobson, M. E. O-11-5935 | Great Western Drilling Company | Slaughter | Terry | 18 | 47.9K | 36.1K | Jan 1993 – Oct 1997 |
| Cowden, Jax M. 23 O-10-36964 | Great Western Drilling Company | Abell (Permian-General) | Crane | 5 | 47.7K | 114K | Aug 2003 – Dec 2020 |
| University 15 O-10-30458 | Great Western Drilling Company | Twofreds, E. (Delaware) | Loving | 5 | 46.8K | 7.88K | Jan 1993 – Aug 2002 |
| Parke, Henry O-11-65169 | Great Western Drilling Company | Seminole, SW. (Clearfork) | Gaines | 2 | 42.6K | 25 | Jan 1993 – Dec 2002 |
| Santa FE Minerals O-11-66706 | Great Western Drilling Company | Tobacco Creek (L. Miss.) | Dawson | 1 | 36.7K | 25 | Jan 1993 – May 2000 |
| TXL 33 O-10-35235 | Great Western Drilling Company | Dimmitt (Cherry Canyon) | Loving | 1 | 27.3K | 75K | Jan 1997 – Jun 2007 |
| Macha "13 O-11-69087 | Great Western Drilling Company | Linker (Clear Fork) | Hockley | 2 | 27.2K | 7.09K | Apr 2007 – Aug 2015 |
| Ligon-Pitts O-10-36925 | Great Western Drilling Company | Waha, West (Delaware) | Reeves | 1 | 25.7K | 43.3K | Apr 2002 – Aug 2016 |
| Pool "A" O-11-68365 | Great Western Drilling Company | Suntura (Lower Clear Fork) | Terry | 1 | 21.8K | 4.52K | Oct 2001 – Sep 2007 |
| Tubb-Ross 26 O-11-69179 | Great Western Drilling Company | Linker (Clear Fork) | Hockley | 1 | 21.6K | 2.97K | Sep 2007 – Jan 2016 |
| Glimp O-11-62002 | Great Western Drilling Company | Kingdom (Abo Reef) | Terry | 1 | 19.3K | 33.5K | Jan 1993 – May 2001 |
| Post Montgomery A O-11-70028 | Great Western Drilling Company | Linker (Clear Fork) | Hockley | 1 | 19.1K | 6.52K | Jun 2012 – Jan 2016 |
| Bennett, Ruth O-11-69463 | Great Western Drilling Company | Wasson, NE. (Clear Fork) | Yoakum | 1 | 18.5K | 0 | Sep 2009 – Jan 2016 |
| Douglas O-4-13703 | Great Western Drilling Company | Saxet (5700) | Nueces | 1 | 18.5K | 4.46K | Nov 2011 – Sep 2020 |
| Singleton, J. R. O-10-14720 | Great Western Drilling Company | Breedlove | Martin | 2 | 11.2K | 22 | Jan 1993 – Dec 1997 |
| TXL 33 O-10-38251 | Great Western Drilling Company | Dimmitt (Delaware Cons) | Loving | 1 | 10.8K | 24.7K | Jul 2007 – Nov 2020 |
| Campbell, Seth O-10-36178 | Great Western Drilling Company | Kermit (McKee) | Winkler | 1 | 9.01K | 615K | Oct 1999 – Feb 2006 |
| Gaskill O-10-45076 | Great Western Drilling Company | Twofreds (Delaware, Lower) | Loving | 2 | 8.29K | 25.4K | Mar 2014 – Jun 2020 |
| University 19-20 O-10-38714 | Great Western Drilling Company | Viejos (Devonian) | Pecos | 1 | 8.07K | 147K | Jan 2008 – Mar 2015 |
| Anteater O-11-68826 | Great Western Drilling Company | Von Roeder, W. (Clear Fork) | Borden | 1 | 6.47K | 0 | Aug 2005 – May 2008 |
| Bennett, Ruth "A" O-11-69516 | Great Western Drilling Company | Wasson | Yoakum | 1 | 5.51K | 0 | Jan 2010 – Aug 2016 |
| Parke, Henry O-11-67129 | Great Western Drilling Company | Seminole, SW. (Wichita Albany) | Gaines | 1 | 2.48K | 14 | Jul 1993 – Oct 1994 |
| Bennett, Ruth "A" O-11-69451 | Great Western Drilling Company | Wasson, NE. (Clear Fork) | Yoakum | 2 | 2.3K | 0 | Aug 2009 – Oct 2010 |
| Texland Lawson O-11-68622 | Great Western Drilling Company | Clauene, NW. (Strawn) | Hockley | 1 | 1.23K | 0 | Sep 2003 – Aug 2004 |
| Singleton, J. R. O-10-35739 | Great Western Drilling Company | Breedlove (Spraberry) | Martin | 1 | 906 | 1 | Dec 1997 – Mar 2000 |
| Welch Unit O-10-32904 | Great Western Drilling Company | Spraberry(trend Area Dean-Wlfcp) | Midland | 1 | 784 | 1.61K | Jan 1993 – Feb 1993 |
| Bailey, Mabel J. O-10-17358 | Great Western Drilling Company | Twofreds (Delaware, Lower) | Loving | 2 | 524 | 9 | Jan 1993 – Nov 1993 |
| Shwab-Lovell O-3-24013 | Great Western Drilling Company | Egypt (7150) | Wharton | 1 | 381 | 12.9K | May 2001 – Aug 2003 |
| Adcock, Helen Zant O-10-31231 | Great Western Drilling Company | Dewey Lake (Fusselman) | Glasscock | 2 | 343 | 28K | Jan 1993 – Jul 1994 |
| Echols, Carson O-11-67228 | Great Western Drilling Company | Echols (Spraberry) | Dawson | 1 | 341 | 5 | Feb 1994 – Jul 1994 |
| Parke, Henry O-11-64769 | Great Western Drilling Company | Seminole, Southwest (Devonian) | Gaines | 1 | 148 | 3 | Jan 1993 – Mar 1993 |
| Kesey O-11-69777 | Great Western Drilling Company | Anton, East (Clear Fork, Lo.) | Hockley | 1 | 143 | 0 | Nov 2011 – Feb 2012 |
| Hibbert-Dean Estate O-11-66660 | Great Western Drilling Company | Tobacco Creek (L. Miss.) | Dawson | 1 | 0 | 0 | — |