| South Cowden Unit O-10-19297 | Conocophillips Company only | Cowden, South | Ector | 118 | 3.52M | 11.8M | by Jan 1993 – Aug 2026 |
| Settles, W. R. -A- O-10-2704 | Conocophillips Company only | Howard Glasscock | Howard | 138 | 3.07M | 72.3K | by Jan 1993 – Nov 2011 |
| Cowden, Clyde O-10-2309 | Conocophillips Company only | Goldsmith (5600) | Ector | 87 | 2.6M | 4.04M | by Jan 1993 – Oct 2006 |
| Overton, B. O-10-2700 | Conocophillips Company only | Howard Glasscock | Howard | 41 | 1.57M | 29.8K | by Jan 1993 – Nov 2011 |
| Settles, W. R. O-10-2706 | Conocophillips Company only | Howard Glasscock | Howard | 62 | 1.35M | 59.2K | by Jan 1993 – Nov 2011 |
| Settles-Yates Unit O-10-20060 | Conocophillips Company only | Howard Glasscock | Howard | 84 | 1.08M | 34.3K | by Jan 1993 – Nov 2011 |
| University Andrews O-10-1268 | Conocophillips Company only | Embar (Ellenburger) | Andrews | 37 | 883K | 2.75M | by Jan 1993 – Apr 2014 |
| Chalk-Duncan O-10-2720 | Conocophillips Company only | Howard Glasscock | Howard | 16 | 858K | 165K | by Jan 1993 – Nov 2011 |
| Eason, S. T. O-10-2696 | Conocophillips Company only | Howard Glasscock | Howard | 17 | 793K | 12K | by Jan 1993 – Nov 2011 |
| Great White O-10-50277 | Conocophillips Company only | Ford, West (Wolfcamp) | Culberson | 2 | 688K | 3.02M | Feb 2018 – Jan 2022 |
| Chalk, Mary O-10-19033 | Conocophillips Company only | Howard-Glasscock (Glorieta) | Howard | 29 | 642K | 188K | by Jan 1993 – Nov 2011 |
| Roberts, Dora O-10-2774 | Conocophillips Company only | Howard Glasscock | Howard | 55 | 607K | 2.33K | by Jan 1993 – Nov 2011 |
| Reagan Core 4E O-9-21356 | Conocophillips Company only | Spraberry (Trend Area) | Reagan | 1 | 580K | 1.88M | May 2021 – Aug 2026 |
| Chalk, G. O. -C- O-10-18989 | Conocophillips Company only | Howard-Glasscock (Glorieta) | Howard | 13 | 560K | 29.4K | by Jan 1993 – Nov 2011 |
| Reagan Core 110E O-9-21412 | Conocophillips Company only | Spraberry (Trend Area) | Reagan | 1 | 501K | 1.47M | May 2021 – Aug 2026 |
| All in BS O-10-46557 | Conocophillips Company only | Sandbar (Bone Spring) | Reeves | 1 | 487K | 1.18M | May 2014 – Aug 2026 |
| Chalk, G. O. -G- O-10-19031 | Conocophillips Company only | Howard-Glasscock (Glorieta) | Howard | 20 | 423K | 80.2K | by Jan 1993 – Nov 2011 |
| Chalk-B Duncan O-10-31901 | Conocophillips Company only | Howard-Glasscock (Glorieta) | Howard | 2 | 366K | 10.7K | by Jan 1993 – Nov 2011 |
| Lina C O-14-6968 | Conocophillips Company only | Wolfcreek (Douglas) | Ochiltree | 3 | 354K | 169K | Apr 1994 – Mar 2015 |
| Yahtzee O-10-62698 | Conocophillips Company only | Ford, West (Wolfcamp) | Culberson | 1 | 348K | 1.81M | Apr 2024 – Aug 2026 |
| Chalk, G. O. -E- O-10-18991 | Conocophillips Company only | Howard-Glasscock (Glorieta) | Howard | 11 | 310K | 64.3K | by Jan 1993 – Nov 2011 |
| Chalk, G. O. -B- O-10-22084 | Conocophillips Company only | Howard Glasscock (Clear Fork,mi) | Howard | 4 | 300K | 14.1K | by Jan 1993 – Nov 2011 |
| Reed -A- O-10-19015 | Conocophillips Company only | Howard-Glasscock (Glorieta) | Howard | 17 | 300K | 41.6K | by Jan 1993 – Nov 2011 |
| Chalk, G. O. -G- O-10-2762 | Conocophillips Company only | Howard Glasscock | Howard | 22 | 286K | 59.1K | by Jan 1993 – Nov 2011 |
| Douthit O-10-2796 | Conocophillips Company only | Howard Glasscock | Howard | 21 | 246K | 78.8K | by Jan 1993 – Nov 2011 |
| Chalk, G. O. -B- O-10-18988 | Conocophillips Company only | Howard-Glasscock (Glorieta) | Howard | 10 | 242K | 37.3K | by Jan 1993 – Nov 2011 |
| Overton, B. -A- O-10-2701 | Conocophillips Company only | Howard Glasscock | Glasscock | 29 | 230K | 11.5K | by Jan 1993 – Nov 2011 |
| Chalk, Sloan O-10-19035 | Conocophillips Company only | Howard-Glasscock (Glorieta) | Howard | 9 | 222K | 48.9K | by Jan 1993 – Nov 2011 |
| Cherry Pie 57-T1-20 O-10-48610 | Conocophillips Company only | Phantom (Wolfcamp) | Reeves | 1 | 222K | 689K | Apr 2016 – May 2020 |
| Douthit-B 1 O-10-19036 | Conocophillips Company only | Howard-Glasscock (Glorieta) | Howard | 10 | 212K | 53.4K | by Jan 1993 – Nov 2011 |
| Chalk, G. O. O-10-18986 | Conocophillips Company only | Howard-Glasscock (Glorieta) | Howard | 9 | 212K | 29.6K | by Jan 1993 – Nov 2011 |
| Chalk, Mary O-10-2763 | Conocophillips Company only | Howard Glasscock | Howard | 30 | 212K | 108K | by Jan 1993 – Nov 2011 |
| Foster-J O-10-30774 | Conocophillips Company only | Cowden, South (Canyon 8790) | Ector | 2 | 210K | 174K | by Jan 1993 – Nov 2003 |
| Reed, W. N. & L. R. O-10-19016 | Conocophillips Company only | Howard-Glasscock (Glorieta) | Howard | 15 | 205K | 37.2K | by Jan 1993 – Nov 2011 |
| Chalk, G. O. -E- O-10-2689 | Conocophillips Company only | Howard Glasscock | Howard | 19 | 195K | 69.1K | by Jan 1993 – Nov 2011 |
| Hyman, Sarah O-10-2768 | Conocophillips Company only | Howard Glasscock | Howard | 43 | 192K | 91.6K | by Jan 1993 – Nov 2011 |
| Alpha State BS O-10-60680 | Conocophillips Company only | Sandbar (Bone Spring) | Reeves | 4 | 189K | 510K | Apr 2023 – Jul 2026 |
| Mercury 1H O-9-23003 | Conocophillips Company only | Spraberry (Trend Area) | Reagan | 1 | 175K | 891K | May 2025 – Aug 2026 |
| Semmes Trust, et al "906" O-4-13057 | Conocophillips Company only | Rincon (Vicksburg 95 906-5) | Starr | 1 | 172K | 244K | Jun 2001 – May 2003 |
| Chalk, G. O. -D- O-10-18990 | Conocophillips Company only | Howard-Glasscock (Glorieta) | Howard | 8 | 171K | 23.1K | by Jan 1993 – Nov 2011 |
| Frank -B- O-10-47355 | Conocophillips Company only | Embar (Permian) | Ector | 1 | 164K | 663K | Jan 2016 – Aug 2019 |
| Owen-Chalk O-10-2764 | Conocophillips Company only | Howard Glasscock | Howard | 27 | 158K | 37.8K | by Jan 1993 – Nov 2011 |
| Mercury 2H O-9-23291 | Conocophillips Company only | Spraberry (Trend Area) | Reagan | 1 | 158K | 467K | May 2025 – Aug 2026 |
| Chalk, G. O. -D- O-10-22055 | Conocophillips Company only | Howard Glasscock (Clear Fork,mi) | Howard | 5 | 157K | 7.1K | by Jan 1993 – Nov 2011 |
| Chalk Estate O-10-19030 | Conocophillips Company only | Howard-Glasscock (Glorieta) | Howard | 9 | 153K | 17.2K | by Jan 1993 – Nov 2011 |
| Mercury 3H O-9-23292 | Conocophillips Company only | Spraberry (Trend Area) | Reagan | 1 | 150K | 841K | May 2025 – Aug 2026 |
| Klink Unit O-10-41636 | Conocophillips Company only | Sallie Ann (Spraberry-Wolfcamp) | Ector | 2 | 147K | 118K | May 2011 – Sep 2013 |
| Nitschke -A- O-14-5357 | Conocophillips Company only | Alpar (Hunton) | Ochiltree | 1 | 146K | 74.1K | by Jan 1993 – Apr 2010 |
| Settles, W. R. -B- O-10-2705 | Conocophillips Company only | Howard Glasscock | Howard | 11 | 133K | 4.65K | by Jan 1993 – Nov 2011 |
| Mercury 5H O-9-22982 | Conocophillips Company only | Spraberry (Trend Area) | Reagan | 1 | 133K | 289K | Jun 2025 – Aug 2026 |