| McElroy Ranch Co. "M" O-9-13191 | XTO Energy Inc. only | Amacker-Tippett, SW (Wolfcamp) | Upton | 7 | 1.7M | 5.76M | Jan 1993 – Apr 2026 |
| Janice O-9-9978 | Summit Petroleum LLC only | Amacker-Tippett, SW (Wolfcamp) | Upton | 5 | 1.23M | 2.09M | Jan 1993 – Apr 2026 |
| Malea O-9-13857 | Summit Petroleum LLC only | Amacker-Tippett, SW (Wolfcamp) | Upton | 3 | 878K | 1.85M | Aug 1995 – Apr 2026 |
| Kimberlea O-9-14994 | Summit Petroleum LLC only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 815K | 726K | May 2000 – May 2013 |
| Halff "57" O-9-14960 | EOG Resources, Inc. only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 699K | 2.14M | Feb 2000 – Feb 2007 |
| Laney B O-9-14842 | Summit Petroleum LLC only | Amacker-Tippett, SW (Wolfcamp) | Upton | 2 | 689K | 1.07M | Nov 1998 – Apr 2014 |
| Laquita Elizabeth O-9-14928 | Summit Petroleum LLC only | Amacker-Tippett, SW (Wolfcamp) | Upton | 4 | 580K | 2.41M | Oct 1999 – May 2014 |
| Cowden "26" O-9-14997 | EOG Resources, Inc. only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 498K | 1.52M | Jun 2000 – Apr 2005 |
| Linsey Elizabeth O-9-14887 | Summit Petroleum LLC only | Amacker-Tippett, SW (Wolfcamp) | Upton | 3 | 442K | 1.43M | Apr 1999 – Sep 2014 |
| Barnett "21" O-9-14871 | Summit Petroleum LLC only | Amacker-Tippett, SW (Wolfcamp) | Upton | 4 | 389K | 1.94M | Jan 1999 – Jun 2018 |
| Tessa Lynn O-9-15186 | Summit Petroleum LLC only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 343K | 570K | Oct 2001 – May 2015 |
| Amacker 80 O-9-14644 | Legacy Reserves Operating LP only | Amacker-Tippett, SW (Wolfcamp) | Upton | 5 | 333K | 1.11M | Jun 1997 – Sep 2009 |
| Mary O O-9-14935 | Summit Petroleum LLC only | Amacker-Tippett, SW (Wolfcamp) | Upton | 3 | 281K | 704K | Nov 1999 – May 2010 |
| Amacker "65" O-9-15089 | EOG Resources, Inc. only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 280K | 1.17M | Jan 2001 – Jun 2004 |
| Shirk O-9-13230 | Rafter T Resources LLC only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 247K | 356K | Jan 1993 – Apr 2026 |
| Amacker 85 SW O-9-14823 | Summit Petroleum LLC only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 222K | 815K | Sep 1998 – Nov 2014 |
| Jessica O-9-15002 | Summit Petroleum LLC only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 221K | 526K | Jul 2000 – Apr 2012 |
| Win-Ter O-9-13520 | Summit Petroleum LLC only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 213K | 227K | Sep 1993 – Feb 2015 |
| Amacher, V. T. 76 O-9-7516 | Civitas Permian Operating, LLC only | Amacker-Tippett, SW (Wolfcamp) | Upton | 4 | 192K | 1.99M | Jan 1993 – May 2013 |
| McGill 49 O-9-14820 | Summit Petroleum LLC only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 191K | 156K | Sep 1998 – Dec 1999 |
| Bott O-9-10287 | Civitas Permian Operating, LLC only | Amacker-Tippett, SW (Wolfcamp) | Upton | 4 | 187K | 527K | Jan 1993 – Sep 2025 |
| Holly B O-9-14880 | Sledge, H. G., Inc. only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 185K | 1.09M | Apr 1999 – Feb 2004 |
| Halff Estate "58" O-9-15184 | EOG Resources, Inc. only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 164K | 386K | Sep 2001 – Feb 2006 |
| Hall "82" O-9-15013 | EOG Resources, Inc. only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 130K | 948K | Aug 2000 – Sep 2003 |
| Ofm O-9-15103 | Sledge, H. G., Inc. only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 124K | 432K | Mar 2001 – Jun 2009 |
| Kristina Leigh O-9-15012 | Summit Petroleum LLC only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 119K | 286K | Jul 2000 – May 2010 |
| Shayne O-9-15307 | Summit Petroleum LLC only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 118K | 201K | Nov 2002 – Mar 2024 |
| Langford 44 O-9-15305 | EOG Resources, Inc. only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 117K | 600K | Oct 2002 – Apr 2005 |
| Amacker "66" O-9-15139 | EOG Resources, Inc. only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 110K | 449K | May 2001 – May 2003 |
| Claire O-9-15172 | Summit Petroleum LLC only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 105K | 303K | Aug 2001 – Mar 2013 |
| Amacker-Halff 81 O-9-7203 | Civitas Permian Operating, LLC only | Amacker-Tippett, SW (Wolfcamp) | Upton | 2 | 104K | 822K | Jan 1993 – Sep 2015 |
| Amacker-Halff "85" B O-9-14974 | EOG Resources, Inc. only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 80.6K | 222K | Mar 2000 – Dec 2011 |
| McGill "71" Unit O-9-15052 | COG Operating LLC only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 75K | 244K | Oct 2000 – Jan 2008 |
| Sallye O-9-15076 | True Oil Company LLC only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 71.8K | 249K | Dec 2000 – Oct 2012 |
| Halff "18" O-9-16831 | EOG Resources, Inc. only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 69.8K | 66.2K | Jul 2008 – Feb 2009 |
| Amacker "68-NE" O-9-15228 | EOG Resources, Inc. only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 65.5K | 271K | Mar 2002 – Mar 2004 |
| Isabella O-9-14956 | Summit Petroleum LLC only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 54.6K | 103K | Jan 2000 – Oct 2021 |
| Amacker "65" NE O-9-15073 | EOG Resources, Inc. only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 53.8K | 406K | Nov 2000 – Jun 2002 |
| Hayden O-9-16622 | COG Operating LLC only | Amacker-Tippett, SW (Wolfcamp) | Upton | 2 | 46.4K | 330 | Feb 2009 – Jul 2022 |
| Amacker O-9-9581 | Oilfield Management, Inc. (A) only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 45.4K | 120K | Jan 1993 – May 2012 |
| Adams "101" O-9-15246 | Thompson, J. Cleo only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 44.9K | 331K | Apr 2002 – Feb 2007 |
| McGill 69 O-9-14981 | EOG Resources, Inc. only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 44.8K | 158K | Apr 2000 – Feb 2001 |
| Cody B O-9-15675 | Summit Petroleum LLC only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 36.8K | 97.6K | Feb 2005 – May 2013 |
| Golden O-9-14358 | Endeavor Energy Resources L.P. only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 35.3K | 28.9K | Mar 1996 – May 2017 |
| Hayden G-9-195307 | COG Operating LLC only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 33.1K | 71.6K | Jun 2003 – Jan 2009 |
| Janice A O-9-14673 | Summit Petroleum LLC only | Amacker-Tippett, SW (Wolfcamp) | Upton | 2 | 31.9K | 95.1K | Nov 1997 – Jul 2023 |
| Halff 84 O-9-14505 | Civitas Permian Operating, LLC only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 28K | 55.5K | Dec 1996 – Feb 2025 |
| Janice B G-9-200647 | Summit Petroleum LLC only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 22.3K | 616K | Mar 2004 – Feb 2018 |
| Halff Estate O-9-10226 | Sledge, H. G., Inc. only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 7.91K | 67.2K | Jan 1993 – Jan 2006 |
| Sylvia O-9-17064 | True Oil Company LLC only | Amacker-Tippett, SW (Wolfcamp) | Upton | 1 | 5.94K | 0 | Nov 2010 – Oct 2012 |