| Holt O-10-34429 | OXY USA WTP LP only | Venteam (Ellenburger) | Ector | 7 | 3.07M | 2.08M | Jan 1995 – Aug 2026 |
| Midland Farms Deep Unit O-10-13350 | Occidental Permian Ltd. only | Midland Farms (Ellenburger) | Andrews | 21 | 2.2M | 4.42M | by Jan 1993 – Aug 2026 |
| Dollarhide Unit O-10-13870 | Scout Energy Management LLC only | Dollarhide (Ellenburger) | Andrews | 18 | 1.97M | 1.27M | by Jan 1993 – Aug 2026 |
| University 38 O-10-36923 | Ovintiv USA Inc. only | Satellite (Devonian) | Andrews | 1 | 1.78M | 330K | May 2002 – Aug 2026 |
| Boydell South Unit O-10-40861 | Texland Petroleum, L.P. only | Boydell, S. (Clear Fork, Lo.) | Andrews | 31 | 995K | 506K | Aug 2011 – Aug 2026 |
| University Andrews O-10-1268 | Conocophillips Company only | Embar (Ellenburger) | Andrews | 37 | 883K | 2.75M | by Jan 1993 – Apr 2014 |
| Cowden Estate et Al O-10-13599 | Scout Energy Management LLC only | Dollarhide, East (Ellenburger) | Andrews | 9 | 875K | 949K | by Jan 1993 – Jan 2014 |
| Texas University -Q- O-10-16237 | Maverick Permian LLC only | University Block 13 (Ellen.) | Andrews | 3 | 767K | 448K | by Jan 1993 – Oct 2011 |
| Martin, Nellie C. O-10-36485 | Unitex Oil & Gas, L.L.C. only | Martin (Consolidated) | Andrews | 33 | 710K | 4.35M | Dec 2000 – Aug 2026 |
| Martin, Nellie C. O-10-23340 | Sheridan Production Company, LLC only | Martin (Tubb) | Andrews | 19 | 563K | 6.2M | by Jan 1993 – May 2010 |
| University "38BQ" O-10-37633 | Ovintiv USA Inc. only | Satellite (Devonian) | Andrews | 1 | 526K | 124K | Mar 2005 – Dec 2023 |
| Fee -S- O-10-16442 | Fasken Oil and Ranch, Ltd. only | Lowe (Ellenburger) | Andrews | 3 | 452K | 359K | by Jan 1993 – Aug 2026 |
| Univ. Consolidated Xii O-10-35574 | Crescent Energy Operating, LLC only | Fullerton, South (Ellenburger) | Andrews | 2 | 433K | 275K | Nov 1997 – Jul 2026 |
| University Consolidated Xii O-10-23165 | Crescent Energy Operating, LLC only | University Block 13 (Ellen.) | Andrews | 6 | 431K | 351K | by Jan 1993 – Aug 2026 |
| U-Texas #36995 O-10-4049 | Fasken Oil and Ranch, Ltd. only | Magutex (Ellenburger) | Andrews | 5 | 401K | 291K | by Jan 1993 – Aug 2026 |
| Elaine O-10-21541 | Morningstar Operating LLC only | Lowe (Ellenburger) | Andrews | 1 | 398K | 29.1K | by Jan 1993 – Aug 2026 |
| University -36- O-10-17838 | Ring Energy, Inc. only | Emma (Ellenburger) | Andrews | 7 | 393K | 455K | by Jan 1993 – May 2012 |
| Ratliff & Bedford O-10-362 | Hilcorp Energy Company only | Bedford (Ellenburger) | Andrews | 9 | 385K | 318K | by Jan 1993 – Aug 2017 |
| Texas Univ. -M- O-10-1786 | Maverick Permian LLC only | Fullerton, South (Ellenburger) | Andrews | 7 | 378K | 314K | Aug 1993 – Mar 2025 |
| Texas -Z- O-10-32499 | Maverick Operating, LLC only | Fullerton, South (Ellenburger) | Andrews | 3 | 366K | 261K | by Jan 1993 – Apr 2022 |
| Midland Farms AK -A- O-10-16235 | Occidental Permian Ltd. only | Inez (Ellenburger) | Andrews | 2 | 365K | 232K | by Jan 1993 – May 2019 |
| Ogden, Belle, -A- O-10-14608 | Hilcorp Energy Company only | Deep Rock (Glorieta 5950) | Andrews | 1 | 353K | 36K | by Jan 1993 – Aug 2026 |
| University -5- O-10-20965 | COG Operating LLC only | McFarland (Ellenburger) | Andrews | 1 | 351K | 118K | by Jan 1993 – Aug 2026 |
| Allar O-10-34737 | Texland Petroleum, L.P. only | Boydell, S. (Clear Fork, Lo.) | Andrews | 4 | 346K | 1.37M | Oct 1995 – Jul 2011 |
| Humble-King O-10-1024 | Highmark Energy Operating, LLC only | Deep Rock (Ellenburger) | Andrews | 1 | 334K | 278K | by Jan 1993 – Aug 2026 |
| Bitler Deep O-10-33150 | Scythian, Ltd. only | Fullerton, North (Ellenburger) | Andrews | 4 | 329K | 23.5K | by Jan 1993 – Jan 2009 |
| University 36 O-10-36879 | Ring Energy, Inc. only | Emma (Connell) | Andrews | 4 | 320K | 230K | Jan 2002 – Aug 2026 |
| Perkins O-10-34603 | Nadel and Gussman Permian,l.l.c. only | Vaquero (Ellenburger) | Andrews | 3 | 315K | 108K | Jul 1995 – May 2012 |
| Texas University -EE- O-10-438 | Wind River Energy, Inc. only | Block 12 (Ellenburger) | Andrews | 3 | 290K | 215K | Dec 1994 – Aug 2026 |
| Boydell Queen Unit O-10-37230 | Unitex Oil & Gas, L.L.C. only | Boydell, (Queen) | Gaines | 9 | 288K | 12.4K | Jan 2004 – Aug 2026 |
| University -29- O-10-17208 | Oilwell Operators, Inc. only | Fullerton | Andrews | 3 | 275K | 279K | by Jan 1993 – Aug 2026 |
| Texas -AA- O-10-32128 | Maverick Operating, LLC only | Fullerton, South (Ellenburger) | Andrews | 6 | 271K | 317K | by Jan 1993 – Dec 2002 |
| Bell "C" O-10-29492 | Ring Energy, Inc. only | Block a-34 (Glorieta) | Andrews | 3 | 260K | 60.7K | by Jan 1993 – Aug 2026 |
| Cowden O-10-35580 | OXY USA WTP LP only | Venteam (Ellenburger) | Andrews | 1 | 260K | 205K | Nov 1997 – Aug 2026 |
| McWhorter O-10-33785 | MGM Oil & Gas Company only | Boydell, S. (Clear Fork, Lo.) | Andrews | 4 | 244K | 198K | Apr 1993 – Feb 2026 |
| Parker, J. E. O-10-4073 | Hilcorp Energy Company only | Martin (Ellenburger) | Andrews | 2 | 241K | 149K | by Jan 1993 – Aug 2026 |
| Butler, L. L. O-10-30701 | Scout Energy Management LLC only | Glasco (Ellenburger) | Andrews | 2 | 238K | 52K | by Jan 1993 – Oct 2016 |
| Fasken Blk. -EE- O-10-9942 | Diamondback E&P LLC only | Fasken (Ellenburger) | Andrews | 2 | 236K | 307K | by Jan 1993 – Dec 2019 |
| Hedberg Estate "E" O-10-34391 | Texland Petroleum, L.P. only | Boydell, S. (Clear Fork, Lo.) | Andrews | 1 | 235K | 918K | Jan 1995 – Jul 2011 |
| University -I- O-10-5026 | Diamondback E&P LLC only | Prichard (Ellenburger) | Andrews | 1 | 230K | 48.6K | by Jan 1993 – Aug 2021 |
| Hedberg Estate "C" O-10-33750 | Texland Petroleum, L.P. only | Boydell, S. (Clear Fork, Lo.) | Andrews | 2 | 225K | 766K | Mar 1993 – Jul 2011 |
| Tmbr/Sharp Butler O-10-31322 | Ctoc Energy, LLC only | Glasco (Ellenburger) | Andrews | 2 | 214K | 49.7K | by Jan 1993 – Aug 2026 |
| Shell-Perkins O-10-28453 | Highmark Energy Operating, LLC only | Deep Rock (Penn.) | Andrews | 10 | 205K | 385K | by Jan 1993 – Aug 2026 |
| Means, R. M., Etal -B- O-10-9273 | Ring Energy, Inc. only | Block a-34 (Ellenburger) | Andrews | 1 | 195K | 81.1K | by Jan 1993 – Jun 2022 |
| Allberg O-10-42296 | Texland Petroleum, L.P. only | Boydell, S. (Clear Fork, Lo.) | Andrews | 4 | 188K | 118K | Jun 2012 – Aug 2026 |
| Bella O-11-70124 | Texland Petroleum, L.P. only | Dempsey Creek (San Andres) | Andrews | 5 | 188K | 8.86K | Aug 2013 – Aug 2026 |
| Willis O-10-37508 | Reverence Operating LLC only | Block a-50 (Ellenburger) | Andrews | 1 | 164K | 27.9K | Jan 2005 – Aug 2026 |
| University-41 O-10-17219 | COG Operating LLC only | McFarland (Ellenburger) | Andrews | 4 | 162K | 105K | by Jan 1993 – Sep 2008 |
| Fee -A- O-10-4045 | Fasken Oil and Ranch, Ltd. only | Magutex (Ellenburger) | Andrews | 2 | 161K | 100K | by Jan 1993 – Aug 2026 |
| Cowden -O- O-10-17823 | Scout Energy Management LLC only | Dollarhide, East (Ellenburger) | Andrews | 4 | 155K | 161K | Jun 1993 – Jun 2009 |