| Second Bywaters O-13-5659 | Waggoner Operating, L.L.C. only | Wichita County Regular | Wichita | 156 | 1.34M | 217K | Jan 1993 – Jul 2026 |
| Lark O-1-10716 | Texas Secondary Oil Corporation only | Jacob | Live Oak | 19 | 415K | 21 | Jan 1993 – Jul 2026 |
| Lockhart O-10-31036 | Winn Operating, LLC only | Martin (Second Simpson Sd.) | Andrews | 1 | 352K | 89.9K | Jan 1993 – Jul 2026 |
| Second Sub-Clkvle. Form. Unit O-6-4886 | Buccaneer Operating LLC only | Pine Mills (Sub-Clarksville) | Wood | 18 | 290K | 3.54K | Jan 1993 – Jul 2026 |
| Second Bywaters O-13-31395 | Waggoner Operating, L.L.C. only | Wichita County (Special) | Wichita | 29 | 170K | 130K | May 2009 – Jul 2026 |
| Wood, Robert W. et al -A- O-1-4970 | Texas Secondary Oil Corporation only | Adams (Buda) | Medina | 30 | 157K | 5.35K | Jan 1993 – Jul 2026 |
| Haskins, S. O-6-12762 | CLR Secondary Recovery, LLC only | Good Springs, W. (Woodbine) | Rusk | 1 | 133K | 22 | Jan 1993 – Jul 2026 |
| Milberger O-3-23858 | CLR Secondary Recovery, LLC only | Milberger (Gravier) | Matagorda | 1 | 126K | 168K | Feb 2000 – Jul 2026 |
| Wilson, J. N. O-1-2052 | Texas Secondary Oil Corporation only | Taylor-Ina | — | 59 | 106K | 21 | Jan 1993 – Jul 2026 |
| Milberger A O-3-24195 | CLR Secondary Recovery, LLC only | Milberger (Gravier) | Matagorda | 1 | 85.9K | 119K | Mar 2001 – Jul 2026 |
| Frost, R. A. O-4-10159 | CLR Secondary Recovery, LLC only | Taft, South (8500) | San Patricio | 1 | 79.4K | 112K | Jan 1993 – Jul 2026 |
| Ward-Wendland O-1-2155 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 39 | 63.7K | 21 | Jan 1993 – Jul 2026 |
| Mezzles O-6-10904 | Buccaneer Operating LLC only | Pine Mills,w.(second Subclarkvl) | Wood | 3 | 63.3K | 5.98K | Jan 1993 – Jul 2026 |
| Bruni Mineral Trust O-4-13177 | Hilcorp Energy Company only | Brazil Pasture(wilcox Second) | Webb | 1 | 60.3K | 550K | Oct 2001 – Jul 2026 |
| Milberger O-3-23947 | CLR Secondary Recovery, LLC only | Sugar Valley (Creech) | Matagorda | 1 | 54.7K | 57.5K | Jul 2000 – Jul 2026 |
| Barwest O-9-12696 | CLR Secondary Recovery, LLC only | Spraberry (Trend Area) | Upton | 4 | 53.9K | 362K | Jan 1993 – Jul 2026 |
| Iantha Rutledge O-2-9681 | Welderxp Ltd. only | Swinney Switch (Hockley, Second) | Live Oak | 1 | 48.2K | 87.5K | Mar 2011 – Jul 2026 |
| Oxbow O-3-24281 | CLR Secondary Recovery, LLC only | Sugar Valley (Creech) | Matagorda | 1 | 46.7K | 42.6K | Mar 2001 – Jul 2026 |
| Aztec Moebius O-1-17378 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 26 | 46.2K | 0 | May 2013 – Jul 2026 |
| Fuller, P. L. O-11-11233 | Texas Secondary Oil Corporation only | Fuller, SE. (Fuller) | — | 2 | 44.8K | 21 | Jan 1993 – Jul 2026 |
| Wilburn O-2-8354 | Edge Petroleum Oper. Co., Inc. only | Swinney Switch (Hockley, Second) | Live Oak | 1 | 42.8K | 44.8K | Feb 1998 – May 2006 |
| Parker, J. E. O-10-29399 | Hilcorp Energy Company only | Martin (Second Simpson Sd.) | Andrews | 2 | 42K | 84.4K | Jan 1993 – Jul 2026 |
| Rogers -B- O-1-8836 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 21 | 39.6K | 21 | Jan 1993 – Jul 2026 |
| Wilson Tertiary Unit O-1-15166 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 46 | 39.4K | 0 | Mar 2010 – Jul 2026 |
| Nash, William O-5-3452 | CLR Secondary Recovery, LLC only | Evans Chapel (Sub-Clarksville) | Leon | 1 | 38.6K | 25.2K | Apr 1993 – Jul 2026 |
| Aztec Wilson P O-1-16279 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 20 | 38K | 0 | Sep 2011 – Jul 2026 |
| Aztec Wilson 'P' Unit 2 O-1-16536 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 22 | 38K | 0 | Apr 2012 – Jul 2026 |
| Kyle, Minnie -D- O-10-31690 | CLR Secondary Recovery, LLC only | Mason, N. (Delaware Sand) | Loving | 1 | 37.7K | 143K | Jan 1993 – Jul 2026 |
| Young, Calvin "A" O-6-12554 | CLR Secondary Recovery, LLC only | Shea (Rodessa) | Rusk | 1 | 36.9K | 188K | Jan 1993 – Jul 2026 |
| Smith O-6-10868 | Buccaneer Operating LLC only | Pine Mills,w.(second Subclarkvl) | Wood | 1 | 36.1K | 3.23K | Jan 1993 – Jul 2026 |
| Schmidt, Bettye O-1-2495 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 13 | 34.3K | 21 | Jan 1993 – Jul 2026 |
| Aztec Betty A O-1-17182 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 19 | 29.1K | 0 | Nov 2012 – Jul 2026 |
| Bendele, Helen, Etal O-1-1720 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 31 | 27.7K | 21 | Jan 1993 – Jul 2026 |
| Schmidt, G.E. O-1-7141 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 16 | 26.4K | 21 | Jan 1993 – Jul 2026 |
| Schweers, M. F. O-1-1714 | Texas Secondary Oil Corporation only | Taylor-Ina | — | 14 | 25.4K | 21 | Jan 1993 – Jul 2026 |
| Hammonds O-6-3652 | CLR Secondary Recovery, LLC only | Bethany, NE. (Lime 3850) | — | 1 | 25.4K | 941 | Jan 1993 – Jul 2026 |
| University 33 O-9-10096 | CLR Secondary Recovery, LLC only | Spraberry (Trend Area) | Reagan | 1 | 24.4K | 127K | Jan 1993 – Jul 2026 |
| Univ. -11-Sec.-1- O-10-34319 | BP America Production Company only | Martin (Second Simpson Sd.) | Andrews | 1 | 24.1K | 32K | Oct 1994 – Mar 2003 |
| Schmidt, Ira G., Mrs. O-1-2458 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 8 | 22.6K | 95 | Jan 1993 – Jul 2026 |
| Schmidt, Bettye -B- O-1-1713 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 13 | 21.8K | 21 | Jan 1993 – Jul 2026 |
| Aztec-Schmidt S O-1-15590 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 14 | 20.2K | 0 | May 2011 – Jul 2026 |
| Lakehouse Unit O-2-10327 | Dirks Petroleum Company only | Swinney Switch (Hockley, Second) | Live Oak | 1 | 19.2K | 60.9K | Jul 2012 – Jul 2026 |
| Wilson, J. N. "P" O-1-1879 | Texas Secondary Oil Corporation only | Taylor-Ina | — | 12 | 19.2K | 45 | Jan 1993 – Jul 2026 |
| Schmidt, Bettie "S" O-1-1882 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 16 | 18.9K | 37 | Jan 1993 – Jul 2026 |
| Biry Tract II O-1-4541 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 19 | 18.8K | 21 | Jan 1993 – Jul 2026 |
| Aztec GE O-1-17202 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 20 | 18.5K | 0 | May 2013 – Jul 2026 |
| Ledrick O-14-4875 | CLR Secondary Recovery, LLC only | Ledrick Ranch (Granite Wash) | Roberts | 2 | 18.1K | 122K | Jan 1993 – Jul 2026 |
| Aztec-Schweers O-1-15358 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 7 | 17.6K | 0 | Jun 2010 – Jul 2026 |
| Wilson, J. N. "G" O-1-2379 | Texas Secondary Oil Corporation only | Taylor-Ina | Medina | 10 | 17.5K | 21 | Jan 1993 – Jul 2026 |
| McLean-Bowman -D- O-1-8530 | CLR Secondary Recovery, LLC only | Good Luck (San Miguel) | Dimmit | 1 | 16.9K | 30 | Jan 1993 – Jul 2026 |