| Prentice Northeast Unit O-11-18607 | Highmark Energy Operating, LLC only | Prentice (6700) | Terry | 621 | 27.7M | 6.55M | by Jan 1993 – Aug 2026 |
| Westbrook Southeast Unit O-10-20847 | Bce-Mach III LLC only | Westbrook | Mitchell | 632 | 17.5M | 975K | by Jan 1993 – Aug 2026 |
| Ketchum Mountain East Unit O-9-14918 | Apache Corporation only | Ketchum Mt. (Clear Fork) | Irion | 230 | 5.67M | 4.19M | Nov 1999 – Aug 2026 |
| Manor Park East Unit O-10-54770 | Fasken Oil and Ranch, Ltd. only | Spraberry (Trend Area) | Midland | 6 | 3.3M | 6.1M | Jun 2020 – Aug 2026 |
| Cowden 39-03 East Unit O-10-61416 | XTO Energy Inc. only | Spraberry (Trend Area) | Midland | 9 | 3.1M | 10.1M | Sep 2023 – Aug 2026 |
| Talco East Unit O-6-15058 | J.P. Oil Company, Inc. only | Talco | Titus | 129 | 2.66M | 0 | Feb 2012 – Jul 2026 |
| Nichols East Unit O-10-53823 | Diamondback E&P LLC only | Spraberry (Trend Area) | Howard | 11 | 2.65M | 12.2M | Jul 2020 – Aug 2026 |
| UL Mason East Unit O-10-48688 | Diamondback E&P LLC only | Spraberry (Trend Area) | Andrews | 4 | 2.17M | 3.08M | Mar 2017 – Aug 2026 |
| Willamar East Unit O-4-7915 | Citation Oil & Gas Corp. only | Willamar | Willacy | 28 | 2.13M | 1.88M | by Jan 1993 – Aug 2026 |
| Grantham East Unit O-10-56790 | Diamondback E&P LLC only | Spraberry (Trend Area) | Martin | 9 | 1.99M | 6.12M | Sep 2022 – Aug 2026 |
| Dove East Unit O-2-9659 | Murphy Expl. & Prod. Co. - USA only | Eagleville (Eagle Ford-2) | Karnes | 7 | 1.83M | 2.85M | Aug 2011 – Aug 2026 |
| Bexar 11-14 East Unit O-10-57404 | Chevron U. S. A. Inc. only | Wolfbone (Trend Area) | Reeves | 5 | 1.81M | 3.8M | Nov 2021 – Aug 2026 |
| Zant Hurt Blalock East Unit 1 O-10-52730 | XTO Energy Inc. only | Spraberry (Trend Area) | Glasscock | 5 | 1.76M | 3.15M | May 2019 – Aug 2026 |
| Young 270-271 East Unit O-10-56303 | Permian Resources Operating, LLC only | Wolfbone (Trend Area) | Reeves | 2 | 1.49M | 2.64M | Jun 2021 – Aug 2026 |
| Howard Glasscock East Unit O-10-35609 | Apache Corporation only | Howard Glasscock | Howard | 131 | 1.45M | 97.3K | Jan 1998 – Nov 2011 |
| Midkiff 42-43 East Unit O-10-57542 | XTO Energy Inc. only | Spraberry (Trend Area) | Midland | 6 | 1.43M | 5.11M | Aug 2022 – Aug 2026 |
| Panther East Unit O-10-52619 | Apache Corporation only | Spraberry (Trend Area) | Howard | 7 | 1.43M | 3.22M | Apr 2019 – Aug 2026 |
| Wilbanks Allar East Unit O-10-50395 | Diamondback E&P LLC only | Spraberry (Trend Area) | Martin | 5 | 1.37M | 6.32M | Mar 2018 – Aug 2026 |
| Jog East Unit O-2-9612 | Murphy Expl. & Prod. Co. - USA only | Eagleville (Eagle Ford-2) | Karnes | 4 | 1.33M | 1.52M | Apr 2011 – Aug 2026 |
| Bexar 46-3 East Unit 2 O-10-57242 | Chevron U. S. A. Inc. only | Wolfbone (Trend Area) | Reeves | 3 | 1.22M | 2.5M | Jul 2021 – Aug 2026 |
| Mid-States East Unit 37-5 O-10-51939 | Permian Resources Operating, LLC only | Spraberry (Trend Area) R 40 Exc | Midland | 3 | 1.08M | 3.04M | Sep 2019 – Aug 2026 |
| Whitfield East Unit O-2-10113 | Murphy Expl. & Prod. Co. - USA only | Eagleville (Eagle Ford-2) | Karnes | 4 | 1.06M | 876K | Apr 2012 – Aug 2026 |
| Barnett East Unit O-2-10205 | Murphy Expl. & Prod. Co. - USA only | Eagleville (Eagle Ford-2) | Karnes | 4 | 1.04M | 1.19M | Oct 2012 – Aug 2026 |
| Sisti East Unit O-2-10485 | Murphy Expl. & Prod. Co. - USA only | Eagleville (Eagle Ford-2) | Karnes | 4 | 1.01M | 1.28M | Apr 2013 – Aug 2026 |
| Clay Creek East Unit O-3-9434 | Aethon Energy Operating LLC only | Clay Creek | Washington | 66 | 1M | 461K | by Jan 1993 – Aug 2026 |
| Ledwig East Unit II Las O-1-16802 | Ineos USA Oil & Gas LLC only | Eagleville (Eagle Ford-1) | La Salle | 5 | 912K | 1.06M | Jun 2013 – Aug 2026 |
| Walker-Drrc East Unit 30-56 O-10-57469 | Surge Operating, LLC only | Spraberry (Trend Area) | Howard | 3 | 900K | 1.92M | Mar 2022 – Aug 2026 |
| Ledwig East Unit IV Las O-1-16747 | Ineos USA Oil & Gas LLC only | Eagleville (Eagle Ford-1) | La Salle | 5 | 873K | 1.09M | Nov 2013 – Aug 2026 |
| Ledwig East Unit I Las O-1-16683 | Ineos USA Oil & Gas LLC only | Eagleville (Eagle Ford-1) | La Salle | 4 | 871K | 978K | Jun 2013 – Aug 2026 |
| North Rogers H East Unit O-1-20758 | Ineos USA Oil & Gas LLC only | Briscoe Ranch (Eagleford) | Dimmit | 3 | 851K | 1.21M | Sep 2022 – Aug 2026 |
| Ledwig East Unit III Las O-1-16806 | Ineos USA Oil & Gas LLC only | Eagleville (Eagle Ford-1) | La Salle | 5 | 811K | 1.09M | Jun 2013 – Aug 2026 |
| Heard Bower East Unit O-1-15799 | Marathon Oil EF LLC only | Eagleville (Eagle Ford-1) | Atascosa | 6 | 745K | 896K | Nov 2011 – Aug 2026 |
| Welch Northeast Unit O-11-60301 | Three Span Oil & Gas, Inc. only | Welch | Lynn | 41 | 726K | 14.5K | by Jan 1993 – Aug 2026 |
| Bexar 46-3 East Unit 1 O-10-57353 | Chevron U. S. A. Inc. only | Wolfbone (Trend Area) | Reeves | 2 | 683K | 1.46M | Jul 2021 – Aug 2026 |
| Talco Central East Unit O-6-15232 | J.P. Oil Company, Inc. only | Talco | Titus | 47 | 662K | 0 | Feb 2014 – Jul 2026 |
| Howard Glasscock East Unit O-10-46924 | Apache Corporation only | Howard Glasscock (Consolidated) | Howard | 147 | 636K | 0 | Dec 2011 – Aug 2026 |
| Geneva East Unit O-10-47307 | Halcon Operating Co., Inc. only | Phantom (Wolfcamp) | Pecos | 1 | 611K | 823K | Nov 2015 – Jul 2026 |
| Smith-East Unit O-2-10610 | Marathon Oil EF LLC only | Eagleville (Eagle Ford-2) | Live Oak | 4 | 521K | 1.01M | Oct 2013 – Aug 2026 |
| Cotulla East Unit O-1-18534 | Verdun Oil EF II LLC only | Eagleville (Eagle Ford-1) | La Salle | 2 | 505K | 1.41M | Aug 2015 – Aug 2026 |
| North Rogers Q East Unit O-1-20642 | Ineos USA Oil & Gas LLC only | Briscoe Ranch (Eagleford) | Dimmit | 3 | 469K | 641K | Sep 2022 – Aug 2026 |
| Davis East Unit O-1-19948 | Zarvona Energy LLC only | Eagleville (Eagle Ford-1) | Gonzales | 3 | 463K | 208K | Nov 2019 – Aug 2026 |
| Delta East Unit O-10-51592 | Strawn Petroleum Operating, LLC only | Garden City, S. (Wolfcamp) | Scurry | 2 | 400K | 1.46M | Dec 2018 – Aug 2026 |
| Flatonia East Unit O-3-26093 | FW Eagle Ford I, LLC only | Southern Bay (Eagle Ford) | Fayette | 3 | 334K | 198K | Jun 2011 – Aug 2026 |
| Pancho East Unit O-1-19070 | Texas American Resources Company only | Eagleville (Eagle Ford-1) | Atascosa | 2 | 327K | 205K | Nov 2016 – Aug 2026 |
| Howard Glasscock East Unit O-10-35608 | Apache Corporation only | Howard-Glasscock (Glorieta) | Howard | 67 | 314K | 21.9K | Jan 1998 – Nov 2011 |
| Lone Star East Unit O-1-21522 | Texas American Resources Company only | Eagleville (Eagle Ford-1) | Atascosa | 2 | 307K | 77.9K | Jul 2024 – Aug 2026 |
| East Unit O-13-16204 | Great American Resources Inc. only | Alvord, South (Caddo Congl.) | Wise | 31 | 270K | 153K | by Jan 1993 – Jan 2026 |
| Hughes Talbot 22-15 East Unit O-10-58070 | COG Operating LLC only | Phantom (Wolfcamp) | Loving | 1 | 264K | 426K | Jun 2022 – Aug 2026 |
| PC East Unit O-1-19238 | Valence Operating Company only | Eagleville (Eagle Ford-1) | Atascosa | 1 | 259K | 155K | Feb 2018 – Aug 2026 |
| Mikulec East Unit O-3-27060 | Wildfire Energy Operating LLC only | Madisonville, W. (Woodbine -A-) | Brazos | 1 | 250K | 44.5K | Dec 2015 – Jul 2026 |