| South Fuhrman Mascho Unit O-10-21365 | Crescent Energy Operating, LLC only | Fuhrman-Mascho | Andrews | 179 | 3.1M | 3.46M | by Jan 1993 – Apr 2026 |
| Holt O-10-34429 | OXY USA WTP LP only | Venteam (Ellenburger) | Ector | 7 | 3.07M | 2.07M | Jan 1995 – Apr 2026 |
| State University Hutex Cons. O-10-21010 | Fasken Oil and Ranch, Ltd. only | Hutex (Devonian) | Andrews | 22 | 2.98M | 152K | by Jan 1993 – Apr 2026 |
| University 7-1726 O-10-47848 | Diamondback E&P LLC only | Spraberry (Trend Area) | Martin | 9 | 2.97M | 4.91M | Aug 2015 – Apr 2026 |
| Fee 'BQ' O-10-47041 | Fasken Oil and Ranch, Ltd. only | Spraberry (Trend Area) | Andrews | 45 | 2.95M | 13.4M | Oct 2015 – Apr 2026 |
| Mabee, J. E. "a" NCT-1 O-10-41157 | COG Operating LLC only | Spraberry (Trend Area) | Andrews | 52 | 2.94M | 9.18M | Apr 2011 – Apr 2026 |
| Warhawk O-10-39823 | COG Operating LLC only | Spraberry (Trend Area) | Martin | 30 | 2.83M | 6.57M | Nov 2009 – Apr 2026 |
| Mabee 240 O-10-39139 | COG Operating LLC only | Spraberry (Trend Area) | Andrews | 56 | 2.74M | 11.1M | Aug 2008 – Apr 2026 |
| East (Dollarhide Dev) Unit O-10-23732 | Scout Energy Management LLC only | Dollarhide, East (Devonian) | Andrews | 23 | 2.65M | 3.39M | by Jan 1993 – Apr 2026 |
| UL Mason West Unit O-10-49200 | Diamondback E&P LLC only | Spraberry (Trend Area) | Andrews | 11 | 2.59M | 2.47M | Jul 2017 – Apr 2026 |
| Mabee 240B O-10-39879 | COG Operating LLC only | Spraberry (Trend Area) | Andrews | 36 | 2.58M | 9.08M | Jan 2010 – Apr 2026 |
| Bitler-Lowe Clearfork Unit O-10-29029 | Highmark Energy Operating, LLC only | Fullerton | Andrews | 50 | 2.57M | 1.15M | by Jan 1993 – Apr 2026 |
| Embar -B- O-10-1269 | Maverick Permian LLC only | Embar (Permian) | Andrews | 66 | 2.52M | 33.4M | by Jan 1993 – Apr 2026 |
| Fee "AW" O-10-39539 | Fasken Oil and Ranch, Ltd. only | Spraberry (Trend Area) | Midland | 48 | 2.52M | 9.3M | Jun 2009 – Apr 2026 |
| Southwest Andrews Unit O-10-35543 | Morningstar Operating LLC only | Andrews (Wolfcamp-Penn.) | Andrews | 37 | 2.48M | 3.87M | Dec 1997 – Apr 2026 |
| Block 10 Fuhrman-Mascho Unit O-10-21930 | Bce-Mach III LLC only | Fuhrman-Mascho | Andrews | 208 | 2.47M | 1.51M | by Jan 1993 – Apr 2026 |
| Cowden Estate et Al O-10-33183 | Scout Energy Management LLC only | Dollarhide, East (Devonian) | Andrews | 17 | 2.4M | 2.89M | by Jan 1993 – Apr 2026 |
| King, E. F. O-10-8494 | Citation Oil & Gas Corp. only | Fuhrman (Glorieta) | Andrews | 34 | 2.32M | 759K | by Jan 1993 – Apr 2026 |
| UL Carpenter 7-20 Unit O-10-47119 | Diamondback E&P LLC only | Spraberry (Trend Area) | Andrews | 4 | 2.28M | 3.16M | Oct 2015 – Apr 2026 |
| Nolley Wolfcamp Unit O-10-23777 | Crescent Energy Operating, LLC only | Nolley (Wolfcamp) | Andrews | 67 | 2.24M | 1.52M | by Jan 1993 – Apr 2026 |
| Emma /San Andres/ Unit O-10-19374 | Block "T" Petroleum, Inc. only | Emma | Andrews | 100 | 2.22M | 160K | by Jan 1993 – Apr 2026 |
| Midland Farms Deep Unit O-10-13352 | Occidental Permian Ltd. only | Midland Farms (Wolfcamp) | Andrews | 73 | 2.2M | 4.37M | by Jan 1993 – Apr 2026 |
| Midland Farms Deep Unit O-10-13350 | Occidental Permian Ltd. only | Midland Farms (Ellenburger) | Andrews | 21 | 2.19M | 4.41M | by Jan 1993 – Apr 2026 |
| UL Mason East Unit O-10-48688 | Diamondback E&P LLC only | Spraberry (Trend Area) | Andrews | 4 | 2.15M | 3.06M | Mar 2017 – Apr 2026 |
| Mabee 240A O-10-40917 | COG Operating LLC only | Spraberry (Trend Area) | Andrews | 35 | 2.09M | 9.5M | Nov 2010 – Apr 2026 |
| Holt, O. B. O-10-23396 | Texland Petroleum, L.P. only | Cowden, North | Ector | 134 | 2.08M | 705K | by Jan 1993 – Apr 2026 |
| Ford, W. T. O-10-1665 | Basin Oil & Gas Operating, LLC only | Fuhrman-Mascho | Andrews | 63 | 2.07M | 649K | by Jan 1993 – Apr 2026 |
| Block 9 Fuhrman-Mascho Unit O-10-20739 | Winn Operating, LLC only | Fuhrman-Mascho | Andrews | 160 | 2.05M | 551K | by Jan 1993 – Apr 2026 |
| University "AU" O-10-33605 | Crescent Energy Operating, LLC only | Fullerton (8500) | Andrews | 7 | 2M | 2.4M | by Jan 1993 – Apr 2026 |
| Northeast Fuhrman-Mascho Unit O-10-22442 | Bce-Mach III LLC only | Fuhrman-Mascho | Andrews | 150 | 2M | 1.29M | by Jan 1993 – Apr 2026 |
| University 8-10W O-10-59267 | Ovintiv USA Inc. only | Spraberry (Trend Area) | Andrews | 8 | 1.97M | 3.09M | Jan 2023 – Apr 2026 |
| Dollarhide Unit O-10-13870 | Scout Energy Management LLC only | Dollarhide (Ellenburger) | Andrews | 18 | 1.97M | 1.27M | by Jan 1993 – Apr 2026 |
| Lowe Bitler Unit O-10-19835 | Crescent Energy Operating, LLC only | Fullerton (San Andres) | Andrews | 48 | 1.93M | 314K | by Jan 1993 – Apr 2026 |
| Three Bar Unit O-10-6783 | Hilcorp Energy Company only | Three Bar (Devonian) | Andrews | 83 | 1.91M | 2.6M | by Jan 1993 – Apr 2026 |
| Saint Andrews Unit O-10-45203 | Sabalo II Operating, LLC only | Saint Wilma (Strawn) | Andrews | 99 | 1.89M | 4.53M | Oct 2014 – Apr 2026 |
| Kuykendall, J. W., Humble O-10-10385 | Southwest Royalties, Inc. only | Fuhrman-Mascho | Andrews | 51 | 1.83M | 2.21M | by Jan 1993 – Apr 2026 |
| Munger Nix O-10-28341 | Montare Operating, Ltd. only | Fuhrman-Mascho | Andrews | 87 | 1.81M | 955K | by Jan 1993 – Apr 2026 |
| Munger Nix "a" LZS O-10-29449 | Montare Operating, Ltd. only | Fuhrman-Mascho | Andrews | 79 | 1.81M | 938K | by Jan 1993 – Apr 2026 |
| University 38 O-10-36923 | Ovintiv USA Inc. only | Satellite (Devonian) | Andrews | 1 | 1.78M | 328K | May 2002 – Apr 2026 |
| Mabee 24 O-10-39340 | COG Operating LLC only | Spraberry (Trend Area) | Andrews | 18 | 1.74M | 2.9M | Jan 2009 – Jun 2018 |
| Logsdon, Etal, -D- O-10-16399 | Texland Petroleum, L.P. only | Fullerton (San Andres) | Andrews | 32 | 1.73M | 509K | by Jan 1993 – Apr 2026 |
| University "ES" O-10-23258 | Apache Corporation only | Block 6, NE (Silurian) | Andrews | 2 | 1.73M | 7.82K | by Jan 1993 – Jun 2021 |
| Gray, Columbus Etal O-10-1719 | Basin Oil & Gas Operating, LLC only | Fuhrman-Mascho | Andrews | 161 | 1.7M | 951K | by Jan 1993 – Apr 2026 |
| Boner, J. W. -B- O-10-1664 | Basin Oil & Gas Operating, LLC only | Fuhrman-Mascho | Andrews | 36 | 1.69M | 286K | by Jan 1993 – Apr 2026 |
| Block 11 Devonian Unit O-10-20149 | Maverick Permian LLC only | Block 11 (Devonian) | Andrews | 48 | 1.66M | 1.05M | by Jan 1993 – Apr 2026 |
| Deep Rock Etal -A- O-10-1033 | Highmark Energy Operating, LLC only | Deep Rock (Glorieta 5950) | Andrews | 9 | 1.65M | 161K | by Jan 1993 – Apr 2026 |
| Butler O-10-1978 | OXY USA WTP EOR, LLC only | Glasco (Devonian) | Andrews | 6 | 1.64M | 23.9K | by Jan 1993 – Apr 2026 |
| University 9 Cec O-10-35926 | XTO Energy Inc. only | University Block 9 (Devonian) | Andrews | 9 | 1.63M | 1.05M | Nov 1998 – Dec 2008 |
| Lineberry(san Andres CF Unit) O-10-35073 | Texland Petroleum, L.P. only | Fullerton (San Andres) | Andrews | 28 | 1.55M | 98.8K | Jul 1996 – Apr 2026 |
| Lindley-Remuda O-10-31020 | Montare Operating, Ltd. only | Fuhrman-Mascho | Andrews | 61 | 1.54M | 559K | by Jan 1993 – Apr 2026 |