| Morrill Ranch O-1-16035 | Burlington Resources O & G Co LP only | Eagleville (Eagle Ford-1) | McMullen | 33 | 7.83M | 9.37M | Apr 2012 – Jul 2026 |
| Igoe-Smith Oper. Area O-11-5947 | Occidental Permian EOR, LLC only | Slaughter | Cochran | 112 | 7.8M | 4.41M | Jan 1993 – Jul 2026 |
| Zant O-10-38900 | XTO Energy Inc. only | Spraberry (Trend Area) | Glasscock | 51 | 7.71M | 31M | Aug 2008 – Jul 2026 |
| West JO-Mill Unit O-11-61062 | JO Mill Oil Company LLC only | JO-Mill (Spraberry) | Borden | 103 | 7.68M | 2.74M | Jan 1993 – Jul 2026 |
| Post-Montgomery Unit 1 O-11-60611 | Brown, Geo. R Partnership,lp,the only | Garza | Garza | 167 | 7.65M | 861K | Jan 1993 – Jul 2026 |
| Wheeler O-1-15325 | Ineos USA Oil & Gas LLC only | Eagleville (Eagle Ford-1) | McMullen | 39 | 7.56M | 5.09M | Dec 2010 – Jul 2026 |
| University 9 O-9-17639 | Sem Operating Company LLC only | Lin (Wolfcamp) | Reagan | 44 | 7.54M | 18.7M | May 2011 – Jul 2026 |
| Bullhead O-9-20070 | Discovery Natural Resources LLC only | Spraberry (Trend Area) | Reagan | 132 | 7.48M | 54.2M | Nov 2018 – Jul 2026 |
| Syco Unit O-11-66735 | Bce-Mach III LLC only | Robertson, N. (Clear Fork 7100) | Gaines | 50 | 7.45M | 3.39M | Jan 1993 – Jul 2026 |
| River Lowe Ranch O-1-15581 | EOG Resources, Inc. only | Eagleville (Eagle Ford-1) | McMullen | 25 | 7.44M | 9.39M | Oct 2011 – Jul 2026 |
| Moonlight O-1-17892 | EOG Resources, Inc. only | Eagleville (Eagle Ford-1) | McMullen | 31 | 7.42M | 4.88M | Jun 2014 – Jul 2026 |
| Boyd O-11-5907 | Hilcorp Energy Company only | Slaughter | Cochran | 78 | 7.42M | 5.22M | Jan 1993 – Jul 2026 |
| North Penwell Unit O-10-21556 | Ring Energy, Inc. only | Penwell | Ector | 282 | 7.31M | 4.24M | Jan 1993 – Jul 2026 |
| Robertson Unit O-11-62665 | Bce-Mach III LLC only | Robertson, N. (Clear Fork 7100) | Gaines | 109 | 7.29M | 2.92M | Jan 1993 – Jul 2026 |
| Newman O-1-15460 | Verdun Oil EF II LLC only | Eagleville (Eagle Ford-1) | LA Salle | 43 | 7.27M | 13.6M | Dec 2010 – Jul 2026 |
| Fleetwood Unit O-2-10710 | EOG Resources, Inc. only | Eagleville (Eagle Ford-2) | Karnes | 23 | 7.27M | 11.7M | Oct 2013 – Jul 2026 |
| Central Van Woodbine Unit O-5-2453 | Basa Resources, Inc. only | Van (Central-Woodbine) | Van Zandt | 192 | 7.25M | 4.64M | Jan 1993 – Jul 2026 |
| Faith-San Pedro O-1-15317 | Crescent Energy Operating, LLC only | Midway (2300 Oil) | Dimmit | 48 | 7.23M | 51.2M | Apr 2001 – Jul 2026 |
| St John 76 2734 O-10-50068 | XTO Energy Inc. only | Phantom (Wolfcamp) | Loving | 14 | 7.21M | 19.9M | Mar 2018 – Jul 2026 |
| Lazy a Cotulla O-1-15213 | Ineos USA Oil & Gas LLC only | Briscoe Ranch (Eagleford) | Dimmit | 39 | 7.21M | 14.6M | May 2010 – Jul 2026 |
| GBG Reedy 13/25 Unit O-10-54568 | Chevron U. S. A. Inc. only | Parks (Consolidated) | Midland | 17 | 7.17M | 25.5M | Jan 2020 – Jul 2026 |
| Diamond H Ranch O-1-15205 | Javelin Energy Partners Mgmt LLC only | Briscoe Ranch (Eagleford) | Dimmit | 45 | 7.16M | 15.8M | Jun 2010 – Jul 2026 |
| Scarborough Unit O-10-31494 | Texland Petroleum, L.P. only | Fullerton (San Andres) | Andrews | 100 | 7.16M | 1.51M | Jan 1993 – Jul 2026 |
| Golden B Unit O-2-10318 | Devon Energy Production Co, L.P. only | Eagleville (Eagle Ford-2) | Karnes | 25 | 7.12M | 11.4M | Nov 2012 – Jul 2026 |
| Lynch Unit O-2-10801 | EOG Resources, Inc. only | Eagleville (Eagle Ford-2) | Karnes | 20 | 7.11M | 11M | Mar 2014 – Jul 2026 |
| Germania Spraberry Unit O-10-21487 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Midland | 113 | 7.01M | 13.8M | Jan 1993 – Jul 2026 |
| Triple Hop O-10-44329 | Oxyrock Operating, LLC only | Spraberry (Trend Area) | Midland | 43 | 6.94M | 20.5M | Aug 2013 – Jul 2026 |
| Preston 5 O-10-47241 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) R 40 Exc | Midland | 29 | 6.93M | 43.6M | Nov 2015 – Jul 2026 |
| Redbud State Unit O-10-47750 | Continental Resources, Inc. only | Phantom (Wolfcamp) | Pecos | 23 | 6.91M | 7.63M | Apr 2015 – Jul 2026 |
| Fullerton /San Andres/ Unit O-10-20307 | Hilcorp Energy Company only | Fullerton (San Andres) | Andrews | 127 | 6.86M | 1.11M | Jan 1993 – Jul 2026 |
| Penwell Unit O-10-23007 | Cross Timbers Energy, LLC only | Penwell | Ector | 289 | 6.85M | 2.21M | Jan 1993 – Jul 2026 |
| Merchant O-9-18787 | OXY USA WTP LP only | Spraberry (Trend Area) R 40 Exc | Reagan | 35 | 6.84M | 51.2M | Jun 2014 – Jul 2026 |
| Dorothy Faye-K- O-10-38475 | Ovintiv USA Inc. only | Spraberry (Trend Area) | Martin | 56 | 6.84M | 19.6M | Dec 2006 – Jul 2026 |
| Hausser O-1-17183 | Formentera Operations LLC only | Briscoe Ranch (Eagleford) | Frio | 39 | 6.83M | 2.48M | Jul 2013 – Jul 2026 |
| Baker Deforest Unit O-1-16046 | EOG Resources, Inc. only | Eagleville (Eagle Ford-1) | Gonzales | 14 | 6.83M | 12M | May 2012 – Jul 2026 |
| Bakke Unit O-10-20882 | Hilcorp Energy Company only | Bakke (Wolfcamp) | Andrews | 111 | 6.82M | 8.79M | Jan 1993 – Jul 2026 |
| Three Bar Shallow Unit O-10-43190 | Hilcorp Energy Company only | Three Bar (Wichita) | Andrews | 23 | 6.75M | 14.7M | Aug 2012 – Jul 2026 |
| Fee 'CF' O-10-51266 | Fasken Oil and Ranch, Ltd. only | Spraberry (Trend Area) | Andrews | 24 | 6.74M | 9.74M | Sep 2018 – Jul 2026 |
| East Ackerly Dean Unit O-11-60687 | Mule Kick Operating LLC only | Ackerly (Dean Sand) | Dawson | 109 | 6.71M | 3.99M | Jan 1993 – Jul 2026 |
| Waha O-10-47318 | VTX Energy Operating, LLC only | Phantom (Wolfcamp) | Reeves | 22 | 6.71M | 11.5M | Jun 2014 – Jul 2026 |
| University 45 O-9-17662 | Zarvona Energy LLC only | Holt Ranch (Consolidated) | Crockett | 104 | 6.71M | 79.8M | Aug 2011 – Jul 2026 |
| Shafter Lake /San Andres/ Unit O-10-20587 | Hilcorp Energy Company only | Shafter Lake (San Andres) | Andrews | 410 | 6.7M | 2.31M | Jan 1993 – Jul 2026 |
| Pena South O-1-16575 | Javelin Energy Partners Mgmt LLC only | Eagleville (Eagle Ford-1) | LA Salle | 31 | 6.7M | 10.3M | Jan 2013 – Jul 2026 |
| Walnut Bend Field Unit O-13-27427 | Sydri Operating, LLC only | Walnut Bend (Consolidated) | Cooke | 370 | 6.69M | 1.38M | Jan 1993 – Jul 2026 |
| Willeke A O-2-10337 | BPX Operating Company only | Eagleville (Eagle Ford-2) | DE Witt | 15 | 6.69M | 12M | Nov 2012 – Jul 2026 |
| Stumberg Estate O-1-16109 | Murphy Expl. & Prod. Co. - USA only | Briscoe Ranch (Eagleford) | Dimmit | 37 | 6.66M | 17M | Jun 2012 – Jul 2026 |
| Waddell TR A O-10-18745 | Blackbeard Operating, LLC only | Sand Hills (San Angelo, Upper) | Crane | 248 | 6.62M | 28.9M | Jan 1993 – Jul 2026 |
| Wareing O-1-15511 | Verdun Oil EF II LLC only | Eagleville (Eagle Ford-1) | LA Salle | 30 | 6.62M | 9.12M | Dec 2010 – Jul 2026 |
| BRD Wrigley Unit O-10-50384 | Chevron U. S. A. Inc. only | Spraberry (Trend Area) | Midland | 24 | 6.61M | 15.5M | Mar 2018 – Jul 2026 |
| Rev GF State T7 50 O-10-50122 | Chevron U. S. A. Inc. only | Phantom (Wolfcamp) | Reeves | 26 | 6.59M | 12.5M | Mar 2018 – Jul 2026 |