| Dollarhide Unit O-10-13867 | Scout Energy Management LLC only | Dollarhide (Devonian) | Andrews | 225 | 23.4M | 40.6M | Jan 1993 – Jul 2026 |
| Oyster Bayou Field Unit O-3-25515 | Denbury Onshore, LLC only | Oyster Bayou | Chambers | 102 | 23.1M | 2.94K | Jun 2010 – Jul 2026 |
| West RKM Unit O-11-19691 | Occidental Permian EOR, LLC only | Slaughter | Hockley | 304 | 23M | 10.9M | Jan 1993 – Jul 2026 |
| Adair San Andres Unit O-11-17304 | Hilcorp Energy Company only | Adair | Gaines | 205 | 22.8M | 4.26M | Jan 1993 – Jul 2026 |
| University "7-43" O-10-40532 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Andrews | 117 | 22.8M | 45.7M | Jul 2010 – Jul 2026 |
| Tom Oconnor (5800 SD) Fld. Unit O-2-5280 | Hilcorp Energy Company only | Tom Oconnor (5800) | Refugio | 594 | 22.8M | 14.9M | Jan 1993 – Jul 2026 |
| Hutt, Donald L.'c' O-10-37123 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Midland | 157 | 22.7M | 73.3M | Jul 2003 – Jul 2026 |
| University 19 PW Unit O-10-42401 | Pdeh LLC only | Phantom (Wolfcamp) | Loving | 73 | 21.9M | 34.1M | Aug 2012 – Jun 2025 |
| Robertson /Clearfork/ Unit O-11-60580 | Hilcorp Energy Company only | Robertson, N. (Clear Fork 7100) | Gaines | 486 | 21.5M | 11.5M | Jan 1993 – Jul 2026 |
| TXL South Unit O-10-20726 | Formentera Operations LLC only | TXL (Tubb) | Ector | 718 | 21.3M | 42.2M | Jan 1993 – Jul 2026 |
| Pembrook Unit O-9-4088 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Upton | 333 | 21.3M | 41.5M | Jan 1993 – Jul 2026 |
| Fairway /James Lime/ Unit O-6-4853 | Highmark Energy Operating, LLC only | Fairway (James Lime) | Henderson | 223 | 21.2M | 328M | Jan 1993 – Jul 2026 |
| San Pedro Ranch O-1-14952 | Jonah Energy LLC only | Hugh Fitzsimmons (San Miguel) | Dimmit | 217 | 21.1M | 147M | Jun 2008 – Jul 2026 |
| South Central Robertson Unit O-11-62596 | Crescent Energy Operating, LLC only | Robertson, N. (Clear Fork 7100) | Gaines | 145 | 20.4M | 10M | Jan 1993 – Jul 2026 |
| West Welch Unit O-11-14783 | OXY USA WTP EOR, LLC only | Welch | Dawson | 687 | 20.4M | 7.45M | Jan 1993 – Jul 2026 |
| Scharbauer, C. O-10-43259 | Chevron U. S. A. Inc. only | Parks (Consolidated) | Midland | 124 | 20.4M | 46.5M | Sep 2012 – Jul 2026 |
| Cornell Unit O-11-19453 | Hilcorp Energy Company only | Wasson | Yoakum | 268 | 20.3M | 35.4M | Jan 1993 – Jul 2026 |
| Kone O-1-15474 | Murphy Expl. & Prod. Co. - USA only | Briscoe Ranch (Eagleford) | Dimmit | 91 | 19.9M | 31M | May 2011 – Jul 2026 |
| University East O-9-17576 | RRP Operating LLC only | Lin (Wolfcamp) | Crockett | 236 | 19.7M | 220M | Oct 2011 – Jul 2026 |
| Central Robertson Clearfork Unit O-11-65590 | Occidental Permian EOR, LLC only | Robertson, N. (Clear Fork 7100) | Gaines | 154 | 19.6M | 7.81M | Jan 1993 – Jul 2026 |
| Ritchie Farms O-1-15315 | Verdun Oil EF II LLC only | Eagleville (Eagle Ford-1) | LA Salle | 94 | 19.6M | 48.8M | Dec 2010 – Jul 2026 |
| Slaughter Consolidated O-11-68016 | Hilcorp Energy Company only | Tstar (Abo) | Hockley | 106 | 19M | 17M | Jan 1999 – Jul 2026 |
| Waddell TR A O-10-5263 | Blackbeard Operating, LLC only | Sand Hills (McKnight) | Crane | 661 | 18.8M | 66.6M | Jan 1993 – Jul 2026 |
| Waddell TR A O-10-5294 | Blackbeard Operating, LLC only | Sand Hills (Tubb) | Crane | 561 | 18.7M | 79.1M | Jan 1993 – Jul 2026 |
| Goldsmith, C. A., Etal O-10-2100 | Hilcorp Energy Company only | Goldsmith (Clear Fork) | Ector | 884 | 18.5M | 43.1M | Jan 1993 – Jul 2026 |
| Hutt, Donald L. Fee O-10-6414 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Midland | 161 | 18.5M | 63.4M | Jan 1993 – Jul 2026 |
| Briscoe Cochina East Ranch O-1-15203 | Javelin Energy Partners Mgmt LLC only | Briscoe Ranch (Eagleford) | LA Salle | 122 | 18.3M | 63.1M | May 2010 – Jul 2026 |
| Roberts Unit O-11-19212 | Hilcorp Energy Company only | Wasson | Yoakum | 622 | 18.3M | 12.3M | Jan 1993 – Jul 2026 |
| West Seminole SA Unit O-11-17310 | OXY USA WTP LP only | Seminole, West | Gaines | 226 | 18.2M | 55.7M | Jan 1993 – Jul 2026 |
| Preston Spraberry Unit O-10-18551 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Midland | 391 | 17.8M | 54.3M | Jan 1993 – Jul 2026 |
| Chittim, N. J. O-1-2082 | Chittim Operating LLC only | Sacatosa (San Miguel #1 Sand) | Maverick | 1,562 | 17.5M | 4.29M | Jan 1993 – Jul 2026 |
| Westbrook Southeast Unit O-10-20847 | Bce-Mach III LLC only | Westbrook | Mitchell | 632 | 17.5M | 969K | Jan 1993 – Jul 2026 |
| Sharon Ridge Canyon Unit O-11-1037 | OXY USA WTP LP only | Diamond -M- (Canyon Lime Area) | Scurry | 400 | 17.4M | 44.6M | Jan 1993 – Jul 2026 |
| Cross Bar Ranch O-10-38014 | COG Operating LLC only | Spraberry (Trend Area) | Martin | 154 | 17.1M | 28.5M | Dec 2006 – Jul 2026 |
| Parks Field Unit 2 O-10-39630 | COG Operating LLC only | Parks (Consolidated) | Midland | 142 | 17M | 42.7M | Apr 2009 – Jul 2026 |
| Mahoney, H. O. O-11-7572 | Hilcorp Energy Company only | Wasson | Yoakum | 122 | 16.9M | 32.1M | Jan 1993 – Jul 2026 |
| Midkiff Unit O-10-15254 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Midland | 315 | 16.8M | 74.6M | Jan 1993 – Jul 2026 |
| Winterbotham Zav O-1-15744 | Exco Operating Company, LP only | Briscoe Ranch (Eagleford) | Zavala | 57 | 16M | 9.21M | Sep 2011 – Jul 2026 |
| St O-10-39560 | Diamondback E&P LLC only | Spraberry (Trend Area) | Midland | 124 | 16M | 47.2M | Sep 2008 – Jul 2026 |
| Flanagan Unit O-11-66166 | Occidental Permian EOR, LLC only | Flanagan (Clearfork, Cons.) | Gaines | 220 | 15.9M | 5.02M | Jan 1993 – Jul 2026 |
| Briscoe Cochina West Ranch O-1-15234 | Javelin Energy Partners Mgmt LLC only | Briscoe Ranch (Eagleford) | Dimmit | 80 | 15.8M | 43.4M | Jun 2010 – Jul 2026 |
| Brown Trust O-1-15756 | Javelin Energy Partners Mgmt LLC only | Eagleville (Eagle Ford-1) | LA Salle | 73 | 15.7M | 23.5M | Jan 2012 – Jul 2026 |
| Nobles O-10-39040 | XTO Energy Inc. only | Spraberry (Trend Area) | Midland | 138 | 15.6M | 28.8M | Oct 2008 – Jul 2026 |
| Kimberly O-10-39506 | Diamondback E&P LLC only | Spraberry (Trend Area) | Martin | 185 | 15.3M | 24.1M | Mar 2009 – Jul 2026 |
| Block 31 Unit O-10-442 | OXY USA EOR, LLC only | Block 31 (Devonian) | Crane | 330 | 15.2M | 971M | Jan 1993 – Jul 2026 |
| Yoakum Wasson Clearfork Unit O-11-63523 | Occidental Permian Ltd. only | Wasson 72 | Yoakum | 269 | 15.1M | 5.22M | Jan 1993 – Jul 2026 |
| Wasson North Clearfork Unit O-11-62689 | Occidental Permian Ltd. only | Wasson, NE. (Clear Fork) | Yoakum | 193 | 15M | 4.41M | Jan 1993 – Jul 2026 |
| Barnhart (EF) O-1-15397 | Marathon Oil EF LLC only | Eagleville (Eagle Ford-1) | Gonzales | 60 | 15M | 18.4M | Nov 2010 – Jul 2026 |
| Frazier, W. G. O-11-6042 | Occidental Permian EOR, LLC only | Slaughter | Hockley | 118 | 14.9M | 75.4M | Jan 1993 – Jul 2026 |
| Goldsmith San Andres Unit O-10-2020 | Hilcorp Energy Company only | Goldsmith | Ector | 721 | 14.8M | 20.4M | Jan 1993 – Jul 2026 |