| University 12 RE O-9-18174 | Sable Permian Resources, LLC only | Lin (Wolfcamp) | Reagan | 6 | 319K | 840K | Mar 2013 – Jun 2020 |
| University 12-9 O-9-16437 | Reverence Operating LLC only | Spraberry (Trend Area) | Reagan | 6 | 207K | 651K | Oct 2007 – Jul 2026 |
| University 12 O-10-36509 | Unitex Oil & Gas, L.L.C. only | Martin (Consolidated) | Andrews | 6 | 180K | 375K | Dec 2000 – Jul 2026 |
| University 12 RE O-9-20623 | Permian Resources Operating, LLC only | Spraberry (Trend Area) | Reagan | 4 | 106K | 533K | Mar 2020 – Jul 2026 |
| University 12-9 O-10-44810 | McDaniel Company, Inc., The only | Three Bar (Wichita) | Andrews | 1 | 95K | 88.8K | Dec 2013 – Jul 2026 |
| University 12A O-10-41796 | Montare Operating, Ltd. only | Fullerton | Andrews | 1 | 71.9K | 32.5K | Jul 2011 – Jul 2026 |
| University 12-36 O-10-41019 | White Rock Oil & Gas, LLC only | Block 12 | Andrews | 2 | 69.4K | 183K | Dec 2010 – Jul 2026 |
| University 12 O-10-47433 | Ovintiv USA Inc. only | Spraberry (Trend Area) | Andrews | 1 | 49.6K | 142K | Mar 2015 – Jul 2026 |
| University 12-10 O-10-42644 | White Rock Oil & Gas, LLC only | Block 12 | Andrews | 1 | 48.5K | 51.4K | Mar 2012 – Jul 2026 |
| University 12-18 O-10-37733 | Apache Corporation only | Quito, E. (Bell Canyon 5275) | Ward | 2 | 40.1K | 184K | Sep 2005 – Jul 2026 |
| University 12-18 O-10-52232 | Apache Corporation only | Phantom (Wolfcamp) | Ward | 2 | 37.6K | 48.6K | Jul 2019 – Jul 2026 |
| University 12-16 O-9-11598 | Thompson, J. Cleo only | Spraberry (Trend Area) | Reagan | 4 | 36.7K | 13.1K | Jan 1993 – Oct 2008 |
| University 12-25 O-10-42107 | Crescent Energy Operating, LLC only | Block 12 | Andrews | 1 | 34.6K | 182K | Nov 2011 – Jul 2026 |
| University 12-22 O-9-16860 | Reverence Operating LLC only | Spraberry (Trend Area) | Crockett | 1 | 32.2K | 66.8K | Jan 2009 – Jul 2026 |
| University 12-22 O-10-40313 | White Rock Oil & Gas, LLC only | Block 12 | Andrews | 1 | 22.3K | 35.5K | May 2010 – Jul 2026 |
| University 12-12 O-9-12941 | Thompson, J. Cleo only | Spraberry (Trend Area) | Reagan | 1 | 22.1K | 24.7K | Jan 1993 – Sep 2021 |
| University 12-21 O-9-11525 | Thompson, J. Cleo only | Spraberry (Trend Area) | Reagan | 1 | 20.6K | 3.44K | Jan 1993 – Oct 2008 |
| University 12-15 O-10-42064 | Contango Resources, LLC only | Block 12 | Andrews | 1 | 18.1K | 26.1K | Jul 2011 – Jun 2022 |
| University 12A O-9-19527 | Energy Production Corporation only | Big Lake | Reagan | 6 | 16.6K | 0 | Mar 2017 – Jul 2026 |
| University 12-3 O-9-16811 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Reagan | 1 | 16.3K | 33.3K | Jan 2009 – Mar 2020 |
| University 12 21 O-10-43306 | Crescent Energy Operating, LLC only | Block 12 | Andrews | 1 | 14.2K | 20.3K | Apr 2012 – Jul 2026 |
| University 12-BLK 12 "A" O-9-9614 | Palo Petroleum, Inc. only | Spraberry (Trend Area) | Reagan | 1 | 12.6K | 76.2K | Jan 1993 – Oct 2003 |
| University 12/BLK 12 "C" O-9-11360 | Kindred Petroleum Company only | Spraberry (Trend Area) | Reagan | 1 | 7.46K | 38.8K | Jan 1993 – Mar 2003 |
| University 12 O-9-15092 | Primal Energy Corporation only | Benedum (Fusselman) | Upton | 1 | 5.78K | 39.2K | Jan 2001 – Apr 2014 |
| University 12-1 O-9-15130 | Kindred Petroleum Company only | Weger, West (Grayburg) | Reagan | 1 | 3.02K | 0 | Jan 2001 – Nov 2008 |
| University 12 O-10-38931 | Sheridan Production Company, LLC only | Fuhrman-Mascho | Andrews | 2 | 1.58K | 0 | May 2008 – Jan 2015 |
| University 12 O-9-18245 | BCP Resources, LLC only | Benedum (Devonian, Gas) | Upton | 1 | 1.51K | 62.7K | Nov 2012 – Jul 2026 |
| University 12 M O-9-13390 | Valley Resources, Inc. only | Farmer (San Andres) | Crockett | 1 | 1.29K | 17 | Jan 1993 – Jul 1997 |
| University 12-25 SE O-10-43515 | Sheridan Production Company, LLC only | Block 12 | Andrews | 1 | 458 | 1.4K | May 2012 – Jun 2015 |
| University 12 O-9-23083 | RP Operating, L.L.C. only | Spraberry (Trend Area) | Reagan | 1 | 0 | 0 | Sep 2024 – Jul 2026 |
| University 12 G-9-74870 | Travers Resources, Inc. only | Howard Draw (Grayburg San Andres | — | 1 | 0 | 1.4K | Jan 1993 – Feb 1999 |
| University 12 G-9-118669 | Ozark Exploration, Inc. only | Block 51 (Strawn) | Crockett | 1 | 0 | 35.5K | Jan 1993 – Jan 2002 |
| University 12 "E" G-9-118899 | Ozark Exploration, Inc. only | Block 51 (Strawn) | Crockett | 1 | 0 | 1.64M | Jan 1993 – Feb 2025 |
| University 12 G-9-188582 | Chevron Midcontinent, L.P. only | Benedum (Devonian, Gas) | Upton | 1 | 0 | 855K | Mar 2002 – Nov 2012 |
| University 12 G-9-219231 | EP Energy E&P Company, L.P. only | Block 39-B (Ellen) | Crockett | 1 | 0 | 6.5K | Mar 2006 – Oct 2012 |
| University 12 G-9-251802 | Piedra Operating, LLC only | Block 51 (Strawn) | Crockett | 1 | 0 | 675 | Jan 2009 – Oct 2009 |
| University 12-F G-10-85816 | Crescent Energy Operating, LLC only | Block 12 (Yates) | Andrews | 1 | 0 | 11.1K | Jan 1993 – Jul 2026 |
| University 12 G-10-87769 | Big D Energy Company only | Block 12 (Yates) | Andrews | 1 | 0 | 232 | Jan 1993 – Apr 2008 |
| University 12-F G-10-91714 | Contango Resources, LLC only | Block 12 (Yates) | Andrews | 1 | 0 | 23.6K | Jan 1993 – Aug 2022 |
| University 12-14 G-10-153217 | Big D Energy Company only | Shafter Lake (Yates) | Andrews | 1 | 0 | 34.9K | Jul 1994 – Dec 2008 |
| University 12-14 G-10-153469 | Big D Energy Company only | Wildcat | Andrews | 1 | 0 | 5.64K | Jul 1994 – Nov 2007 |
| University 12-14 NE G-10-164187 | 1836 Energy LLC only | Shafter Lake (Yates) | Andrews | 1 | 0 | 371K | Jun 1997 – Jul 2026 |
| University 12-14 NE G-10-167620 | Fueled Resources Inc only | Shafter Lake (Yates) | Andrews | 1 | 0 | 10.5K | Jan 1998 – Jul 2026 |
| University 12 O-9-18062 | Petrohawk Operating Company only | Lin (Wolfcamp) | Reagan | 1 | 0 | 0 | May 2012 – Sep 2013 |
| University 12 O-9-21310 | Energy Production Corporation only | Wildcat | Reagan | 2 | 0 | 0 | Jul 2020 – Jul 2026 |
| University 12 G-9-41291 | Travers Resources, Inc. only | Howard Draw (Grayburg San Andres | — | 1 | 0 | 5.61K | Jan 1993 – Feb 1999 |
| University 12A O-10-39002 | Montare Operating, Ltd. only | Fuhrman-Mascho | Andrews | 2 | 0 | 0 | May 2008 – Mar 2024 |
| University 12-32 O-10-39328 | COG Operating LLC only | Wildcat | Andrews | 1 | 0 | 0 | Jan 2008 – Oct 2009 |
| University 12-10 O-10-40252 | White Rock Oil & Gas, LLC only | Wildcat | Andrews | 1 | 0 | 0 | Apr 2010 – Jul 2026 |
| University 12A O-10-41485 | Montare Operating, Ltd. only | Fuhrman-Mascho (Yates) | Andrews | 1 | 0 | 0 | Feb 2011 – Mar 2024 |