| Lakehouse Unit O-2-10327 | Dirks Petroleum Company only | Swinney Switch (Hockley, Second) | Live Oak | 1 | 19.2K | 60.9K | Jul 2012 – Jul 2025 |
| Aztec GE O-1-17202 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 20 | 19K | 0 | May 2013 – Aug 2026 |
| Biry Tract II O-1-4541 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 19 | 19K | 21 | by Jan 1993 – Aug 2026 |
| Ledrick O-14-4875 | CLR Secondary Recovery, LLC only | Ledrick Ranch (Granite Wash) | Roberts | 2 | 18.1K | 122K | by Jan 1993 – Jan 2018 |
| Aztec-Schweers O-1-15358 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 7 | 17.8K | 0 | Nov 2010 – Aug 2026 |
| Wilson, J. N. "G" O-1-2379 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 10 | 17.5K | 21 | by Jan 1993 – Aug 2026 |
| McLean-Bowman -D- O-1-8530 | CLR Secondary Recovery, LLC only | Good Luck (San Miguel) | Dimmit | 1 | 16.9K | 30 | by Jan 1993 – Aug 2017 |
| Bodden Frost Gas Unit 1 G-2-103176 | CLR Secondary Recovery, LLC only | Fant (Wilcox 10200) | Live Oak | 1 | 16.8K | 3.26M | by Jan 1993 – May 2021 |
| Tiller, G. C. O-6-3941 | CLR Secondary Recovery, LLC only | Bethany, NE. (Lime 3850) | Panola | 2 | 16.5K | 21 | by Jan 1993 – Oct 2004 |
| Grissom et Al O-6-13690 | CLR Secondary Recovery, LLC only | Carthage (Pettit, Lower) | Gregg | 1 | 15.9K | 31.6K | Feb 1997 – Sep 2003 |
| Santa Anna State O-9-15247 | CLR Secondary Recovery, LLC only | Spraberry (Trend Area) | Reagan | 1 | 15.7K | 13K | Mar 2002 – Feb 2020 |
| Neal, J. O. 49 O-10-37936 | CLR Secondary Recovery, LLC only | Coyanosa (Delaware Sd.) | Pecos | 1 | 15.6K | 26.3K | Sep 2006 – Sep 2020 |
| Bertner, Gus O-10-4762 | CLR Secondary Recovery, LLC only | Pecos Valley (High Gravity) | Ward | 4 | 15.5K | 21 | by Jan 1993 – Nov 2017 |
| Wilson, J. N. "H" O-1-2101 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 8 | 14.3K | 21 | by Jan 1993 – Aug 2026 |
| Connell, W. E. Estate O-10-559 | Texas Secondary Oil Corporation only | C-Bar (San Andres) | Crane | 2 | 14K | 21 | by Jan 1993 – Aug 2026 |
| Evans, Geo. N. -B- O-1-10896 | Texas Secondary Oil Corporation only | Somerset | Bexar | 27 | 13.5K | 30 | by Jan 1993 – Aug 2026 |
| Barkley G-3-89887 | CLR Secondary Recovery, LLC only | Mellon (10500) | Matagorda | 1 | 12.8K | 1.26M | by Jan 1993 – Apr 2019 |
| Aztec-Woods O-1-15519 | Texas Secondary Oil Corporation only | Adams (Buda) | Medina | 5 | 12.7K | 0 | Dec 2010 – Aug 2026 |
| Colunga O-1-10747 | Texas Secondary Oil Corporation only | Somerset | Atascosa | 8 | 12.7K | 20 | by Jan 1993 – Aug 2026 |
| Rogers, C. C. Unit -1- O-1-3398 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 19 | 12.5K | 15 | by Jan 1993 – Aug 2026 |
| Bodden-Frost GU 1 G-2-166869 | CLR Secondary Recovery, LLC only | Fant (Wilcox 10000) | Live Oak | 1 | 12.1K | 770K | Dec 1997 – May 2005 |
| Pawlik GU 1 G-2-98582 | CLR Secondary Recovery, LLC only | Fant, S. (Wilcox 10760) | Live Oak | 1 | 11.6K | 783K | by Jan 1993 – Feb 2000 |
| Koemel, J.J. O-1-7020 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 8 | 11.1K | 21 | by Jan 1993 – Aug 2026 |
| Rudd, W.L. G-6-148961 | CLR Secondary Recovery, LLC only | Waskom (Travis Peak 1) | Harrison | 1 | 10.9K | 1.26M | Mar 1994 – Jan 2021 |
| Godden, Amzi O-1-5515 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 8 | 10.9K | 21 | by Jan 1993 – Aug 2026 |
| Santa Rita "6" State O-9-15054 | CLR Secondary Recovery, LLC only | Spraberry (Trend Area) | Reagan | 1 | 10.7K | 6.07K | Sep 2000 – Jan 2020 |
| Brysch Gas Unit 2 G-2-113782 | CLR Secondary Recovery, LLC only | George West, West (10200) | Live Oak | 1 | 10.5K | 1.48M | by Jan 1993 – Jul 2022 |
| Aztec-Wilson A O-1-15683 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 10 | 9.36K | 0 | Jun 2011 – Aug 2026 |
| Burke, Frances P. et Al G-3-70715 | CLR Secondary Recovery, LLC only | Mellon (10500) | Matagorda | 1 | 9.11K | 874K | by Jan 1993 – Apr 2019 |
| Werner, Louis, -J- O-6-4197 | CLR Secondary Recovery, LLC only | Bethany, NE. (Lime 3850) | Panola | 2 | 8.85K | 5.36K | by Jan 1993 – May 2005 |
| Jeffrey Unit G-6-87939 | CLR Secondary Recovery, LLC only | Willow Springs (Travis Peak) | Gregg | 1 | 8.61K | 1.02M | by Jan 1993 – Jun 2023 |
| Neuman, Clara T. O-1-1900 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 5 | 8.37K | 45 | by Jan 1993 – Aug 2026 |
| Tiller, M. R. O-6-12267 | CLR Secondary Recovery, LLC only | Waskom (Wellborn Sand) | Harrison | 1 | 8.14K | 361K | by Jan 1993 – Jul 2013 |
| Fohn, E. L. -A- O-1-1725 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 11 | 8.07K | 19 | by Jan 1993 – Aug 2026 |
| Waskow (Wilcox) Gas Unit G-2-210503 | Repsol Oil & Gas USA, LLC only | Kawitt (Second Roeder) | Karnes | 1 | 8.04K | 428K | Mar 2005 – Nov 2008 |
| Hairrell, Gladys O-1-5830 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 6 | 8K | 21 | by Jan 1993 – Aug 2026 |
| Bailey, James O-1-1718 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 7 | 7.93K | 21 | by Jan 1993 – Aug 2026 |
| Godden, C.C. O-1-6769 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 8 | 7.84K | 21 | by Jan 1993 – Aug 2026 |
| Bodden-Frost Gas Unit 1 G-2-251488 | CLR Secondary Recovery, LLC only | Fant (Wilcox 9500) | Live Oak | 1 | 7.74K | 387K | Jun 2005 – Sep 2023 |
| Fohn, Edward Unit II O-1-6432 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 10 | 7.39K | 21 | by Jan 1993 – Aug 2026 |
| Montgomery, Dudley O-1-13589 | CLR Secondary Recovery, LLC only | Nixon | Wilson | 2 | 7.17K | 78 | Mar 1995 – Jul 2004 |
| Moebius, F. O-1-1728 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 7 | 7.16K | 45 | by Jan 1993 – Aug 2026 |
| University 11 Sec 1 O-10-39306 | OXY USA EOR, LLC only | Martin (Second Simpson Sd.) | Andrews | 1 | 6.95K | 31.4K | May 2007 – May 2016 |
| Biry Trsct III O-1-10207 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 4 | 6.78K | 20 | by Jan 1993 – Aug 2023 |
| Schmidt, J.D. Unit I O-1-6701 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 2 | 6.75K | 21 | by Jan 1993 – Aug 2026 |
| Rhodes, J.E. "S" O-1-6404 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 8 | 6.62K | 21 | by Jan 1993 – Aug 2026 |
| Wilson 'P' Unit 3 O-1-20329 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 6 | 6.45K | 0 | Oct 2019 – Aug 2026 |
| Williams 42 O-9-18134 | CLR Secondary Recovery, LLC only | Tankersley (Wolfcamp) | Schleicher | 1 | 6.25K | 0 | Aug 2013 – Mar 2021 |
| Viboras Field Gas Unit No. 1 G-4-87157 | EOG Resources, Inc. only | Viboras ( Massive Second VI) | Brooks | 1 | 6.2K | 928K | by Jan 1993 – Dec 2024 |
| Walton, S.L. O-1-5770 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 4 | 6.09K | 21 | by Jan 1993 – Aug 2026 |