| TXL -O- O-10-49727 | Formentera Operations LLC only | Goldsmith, W. (San Andres) | Ector | 1 | 9.48K | 8.19K | Mar 2018 – Apr 2026 |
| Cummins, H. E. 'B' O-10-35494 | Anadarko Petroleum Corporation only | Andector (Wichita Albany) | Ector | 1 | 9.36K | 22.7K | Sep 1997 – Jun 1999 |
| Blakeney -OB- O-10-24325 | BP America Production Company only | Cowden, North | Ector | 2 | 9.31K | 24.3K | Jan 1993 – Oct 1998 |
| Kloh "B-7" O-10-49701 | Aghorn Operating, Inc. only | Goldsmith, W. (San Andres) | Ector | 2 | 9.25K | 8.81K | Mar 2018 – Feb 2026 |
| Cummins, H. E., -B- O-10-13311 | Aghorn Operating, Inc. only | Goldsmith (5600) | Ector | 3 | 9.22K | 49K | Jan 1993 – Oct 1998 |
| Rickson O-10-29265 | Southwest Royalties, Inc. only | Goldsmith (5600) | Ector | 1 | 9.22K | 82.4K | Jan 1993 – Nov 2005 |
| Ratliff "J" O-10-34723 | COG Operating LLC only | Headlee, N. (Devonian) | Ector | 2 | 9.19K | 34.9K | Dec 1994 – May 2016 |
| Thomas -G- O-10-38094 | Boaz Energy II Operating, LLC only | Goldsmith (Clear Fork) | Ector | 1 | 9.18K | 0 | Nov 2006 – Aug 2015 |
| Williamson -D- O-10-31035 | Phoenix Hydrocarbons Operating only | Goldsmith, N. (San Andres, Con.) | Ector | 1 | 9.13K | 12.1K | Jan 1993 – Dec 1997 |
| TXL -D- O-10-15604 | Drake Oil & Gas, LLC only | TXL (Wichita Albany, South) | Ector | 1 | 9.1K | 11.1K | Jan 1993 – Sep 2019 |
| Millard -K- O-10-62743 | Ring Energy, Inc. only | Penwell (Clear Fork 5100) | Ector | 1 | 9.06K | 35.1K | Dec 2024 – Apr 2026 |
| Cross, John T. -B- O-10-18362 | Endeavor Energy Resources L.P. only | Lawson (San Andres) | Ector | 4 | 8.99K | 43.4K | Jan 1993 – Jul 1998 |
| TXL -A- O-10-15701 | Aghorn Operating, Inc. only | TXL (Devonian) | Ector | 2 | 8.99K | 68.6K | Jan 1993 – Jul 1999 |
| Kloh D-9 O-10-39714 | Boaz Energy II Operating, LLC only | Goldsmith (Clear Fork) | Ector | 1 | 8.93K | 30.1K | Oct 2009 – Jun 2015 |
| R.B. -AB- Cowden O-10-62115 | Octane Energy Operating, LLC only | Martin (Consolidated) | Ector | 1 | 8.9K | 6.15K | Jul 2024 – Apr 2026 |
| Parker Minerals 7 O-10-47016 | Acoma Operating, LLC only | Goldsmith | Ector | 2 | 8.88K | 26.2K | Jun 2014 – Dec 2023 |
| Cowden, R. B. O-10-9462 | M & J Energy, Inc. only | Goldsmith (5600) | Ector | 2 | 8.87K | 85.5K | Jan 1993 – Oct 2006 |
| Cowden J O-10-38603 | Andector Exploration Company only | Goldsmith (Clear Fork) | Ector | 2 | 8.84K | 83.9K | Nov 2006 – Apr 2026 |
| Embar O-10-14198 | Conocophillips Company only | Goldsmith (5600) | Ector | 2 | 8.78K | 61.7K | Jan 1993 – Jul 2006 |
| Thomas, A. E O-10-24191 | XTO Energy Inc. only | TXL (San Andres) | Ector | 4 | 8.7K | 162K | Jan 1993 – Aug 2008 |
| Parks Bell 41 O-10-45710 | COG Operating LLC only | Spraberry (Trend Area) | Ector | 1 | 8.62K | 14K | Feb 2015 – Jun 2018 |
| Ector -Q- Fee O-10-49705 | Aghorn Operating, Inc. only | Goldsmith, W. (San Andres) | Ector | 4 | 8.58K | 4.53K | Mar 2018 – Feb 2026 |
| TXL O-10-15100 | Saguaro Petroleum, LLC only | Cowden, North | Ector | 3 | 8.5K | 34K | Jan 1993 – Dec 2025 |
| Goldsmith Andector Unit G-10-276994 | Maverick Permian LLC only | Goldsmith (Clear Fork) | Ector | 1 | 8.5K | 617K | May 2015 – Apr 2026 |
| Ector Fee Unit O-10-19819 | Gilliam's Aghorn Energy only | Harper, SE. (Ellen.) | Ector | 2 | 8.38K | 20K | Jan 1993 – Jan 1995 |
| Opie A O-10-44488 | Diamondback E&P LLC only | Sallie Ann (Spraberry-Wolfcamp) | Ector | 1 | 8.34K | 51.4K | Feb 2014 – Apr 2026 |
| Thomas, A. E. -B- O-10-15633 | Double Barrel Oil LLC only | Wheeler (Wolfcamp) | Ector | 2 | 8.32K | 21.8K | Feb 1993 – Apr 2026 |
| Ector -AI- Fee O-10-17024 | Aghorn Operating, Inc. only | Goldsmith (5600) | Ector | 2 | 8.26K | 0 | Aug 2001 – Oct 2006 |
| Cummins -C- O-10-31179 | Baker Operating, Inc. only | Goldsmith | Ector | 2 | 8.17K | 2.39K | Jan 1993 – Apr 2026 |
| Cummins J O-10-34846 | OXY USA WTP LP only | Goldsmith, W. (Wolfcamp) | Ector | 1 | 8.16K | 14.7K | Jan 1996 – Sep 1997 |
| Cowden "19" O-10-31579 | Rust Oil Corp. only | Cowden (Cisco) | Ector | 1 | 8.16K | 21 | Jan 1993 – Feb 2019 |
| TXL-K-Tract 2 O-10-25260 | Anadarko Petroleum Corporation only | TXL (Devonian) | Ector | 1 | 8.16K | 28.5K | Jan 1993 – May 1999 |
| Connell, W. E.-Tract -C- O-10-3086 | Devon Energy Corporation(nevada) only | Jordan (Ellenburger) | Ector | 1 | 8.16K | 29 | Jan 1993 – Feb 1998 |
| Johnson, J. L. O-10-17759 | Sundown Energy LP only | Donnelly, North (Grayburg) | Ector | 4 | 8.15K | 29.1K | Jan 1993 – Nov 2002 |
| McFall, R.E. O-10-49710 | DSR Oil & Gas, Inc. only | Goldsmith, W. (San Andres) | Ector | 2 | 8.12K | 268 | Mar 2018 – Apr 2026 |
| Slator, J. D. -B- O-10-11648 | Aghorn Operating, Inc. only | TXL (San Andres) | Ector | 2 | 8.09K | 45.9K | Jan 1993 – Feb 2018 |
| Holt, O.B. Jr., Etal O-10-36850 | Chevron Midcontinent, L.P. only | Cowden, North | Ector | 1 | 8.08K | 1.64K | Sep 2001 – Mar 2007 |
| Parker O-10-20612 | Sheridan Production Company, LLC only | Harper | Ector | 3 | 8.06K | 4.37K | Jan 1993 – Oct 2010 |
| Cochran, W. C. O-10-36647 | Texland Petroleum, L.P. only | Cowden, North (Wichita-Albany) | Ector | 1 | 8.04K | 1.26K | Aug 2001 – Jan 2017 |
| Parker, J. E. -C- O-10-18953 | Baker Operating, Inc. only | TXL (San Andres) | Ector | 2 | 8.01K | 15.8K | Jan 1993 – Apr 2013 |
| TXL -D- O-10-49686 | Baker Operating, Inc. only | Goldsmith, W. (San Andres) | Ector | 1 | 7.99K | 19.4K | Mar 2018 – Apr 2026 |
| Thomas -C- O-10-49692 | OXY USA WTP EOR, LLC only | Goldsmith, W. (San Andres) | Ector | 2 | 7.96K | 8.66K | Feb 2021 – Apr 2026 |
| Susie O-10-37975 | Jay Management Company, LLC only | Goldsmith (Clear Fork) | Ector | 1 | 7.94K | 9.01K | Nov 2006 – Apr 2026 |
| Fraser, G. C. -F- O-10-13772 | Baker Operating, Inc. only | Goldsmith, W. (San Andres) | Ector | 3 | 7.94K | 0 | Mar 2019 – Apr 2026 |
| Connell Mgmt B O-10-55346 | Ring Energy, Inc. only | Jordan (Wichita Albany) | Ector | 1 | 7.94K | 0 | Dec 2020 – Nov 2021 |
| T X L -O- O-10-50076 | Baker Operating, Inc. only | Goldsmith, W. (San Andres) | Ector | 3 | 7.88K | 15.7K | Apr 2018 – Apr 2026 |
| Nelson O-10-20728 | Brown, H. L., Jr. only | Bob (Penn.) | Ector | 2 | 7.84K | 144K | Jan 1993 – Jun 1998 |
| Argo-Moss O-10-10044 | Aghorn Operating, Inc. only | Harper | Ector | 12 | 7.81K | 1.41K | Jan 1993 – Apr 2023 |
| Parker "T" O-10-35015 | Seaboard Oil Company only | Monahans Draw (Canyon 8388) | Ector | 1 | 7.81K | 0 | Apr 1996 – Jun 2000 |
| Cowden -32- O-10-31457 | Prime Operating Company only | Cowden (Cisco) | Ector | 2 | 7.8K | 1.95K | Jan 1993 – Jul 1999 |