| State of Texas Deep Unit O-3-24007 | Etoco, L.P. only | Sralla Road (Yegua) | Harris | 1 | 1.22M | 3.02M | Apr 2001 – Apr 2026 |
| State of Texas -DX- O-10-15229 | Formentera Operations LLC only | Dune | Crane | 28 | 850K | 421K | Jan 1993 – Apr 2026 |
| State of Texas -DC- O-10-26002 | Jetta Operating Company, Inc. only | Caprito (Delaware Middle) | Ward | 12 | 722K | 6.13M | Jan 1993 – Apr 2026 |
| State of Texas BH O-10-36533 | XTO Energy Inc. only | University Block 9 (Devonian) | Andrews | 2 | 616K | 390K | Dec 2000 – Dec 2008 |
| State of Texas -AE- O-10-4044 | Ovintiv USA Inc. only | Magutex (Devonian) | Andrews | 2 | 366K | 326K | Jan 1993 – Mar 2020 |
| State of Texas -CE- O-10-11628 | Hilcorp Energy Company only | Magutex (Devonian) | Andrews | 2 | 304K | 25.1K | Jan 1993 – Apr 2026 |
| State of Texas #33724 O-2-1271 | Bep Operating, LLC only | Powderhorn (5200 Sand) | Calhoun | 6 | 293K | 214K | Jan 1993 – Nov 2015 |
| State of Texas "DL" O-10-34093 | Jetta Operating Company, Inc. only | Caprito (Delaware Middle) | Ward | 7 | 275K | 1.44M | Feb 1994 – Apr 2026 |
| State of Texas BK O-10-41942 | Octane Energy Operating, LLC only | Martin (Consolidated) | Andrews | 11 | 261K | 719K | Jul 2011 – Apr 2026 |
| State of Texas -Z- O-10-386 | Bass Petroleum, Inc only | Block 6 (Devonian) | Andrews | 3 | 255K | 17.9K | Jan 1993 – Aug 2014 |
| Hixon-State of Texas Unit G-1-296808 | Verdun Oil EF II LLC only | Eagleville (Eagle Ford-1) | La Salle | 1 | 242K | 789K | Dec 2017 – Apr 2026 |
| State of Texas -FW- O-10-26359 | Jetta Operating Company, Inc. only | War-Wink, S. (Wolfcamp) | Ward | 3 | 202K | 815K | Jan 1993 – Dec 2019 |
| State of Texas A-B O-14-1671 | Qri Industries, Inc. only | Panhandle Hutchinson County Fld. | Hutchinson | 39 | 197K | 411K | Jan 1993 – Mar 2026 |
| Hixon-State of Texas Unit G-1-296809 | Verdun Oil EF II LLC only | Eagleville (Eagle Ford-1) | La Salle | 1 | 190K | 576K | Dec 2017 – Apr 2026 |
| State of Texas -DV- O-10-15047 | Formentera Operations LLC only | Dune | Crane | 10 | 184K | 104K | Jan 1993 – Apr 2026 |
| State of Texas -DF- O-10-26174 | Jetta Operating Company, Inc. only | Caprito (Delaware Middle) | Ward | 6 | 182K | 1.72M | Jan 1993 – Dec 2021 |
| State of Texas Tannehill Unit O-8-27908 | Big al Oil and Gas only | Geneview (Tannehill) | Stonewall | 15 | 178K | 0 | Jul 1996 – Apr 2026 |
| State of Texas -DW- O-10-15057 | Formentera Operations LLC only | Dune | Crane | 27 | 171K | 112K | Jan 1993 – Apr 2026 |
| State of Texas -E- O-10-7362 | P.o.&g. Operating, LLC only | Ward-Estes, North | Ward | 11 | 164K | 248K | Jan 1993 – Apr 2026 |
| Hixon-State of Texas Unit G-1-297775 | Verdun Oil EF II LLC only | Eagleville (Eagle Ford-1) | La Salle | 1 | 162K | 841K | Apr 2014 – Apr 2026 |
| State of Texas -CQ- O-9-3053 | Digital Operating Company LLC only | Weger, North | Crockett | 8 | 140K | 177K | Jan 1993 – Mar 2026 |
| State of Texas CR O-10-38574 | XTO Energy Inc. only | Block 9 (Devonian) | Andrews | 1 | 135K | 2.78M | Oct 2007 – Apr 2026 |
| State of Texas O-10-35189 | McClure Oil Company, Inc. only | Dimmitt (Cherry Canyon) | Loving | 3 | 134K | 134K | Jan 1997 – Jun 2007 |
| State of Texas -A- O-14-4274 | Qri Industries, Inc. only | Panhandle Hutchinson County Fld. | Hutchinson | 71 | 133K | 923K | Jan 1993 – Dec 2018 |
| State of Texas EM O-10-36705 | Burleson Petroleum, Inc. only | Embar (Permian) | Andrews | 4 | 122K | 2.95M | Sep 2001 – Apr 2026 |
| State of Texas -DD- O-10-15220 | XTO Energy Inc. only | Block 9 (Devonian) | Andrews | 3 | 117K | 929K | Dec 2002 – Apr 2026 |
| State of Texas 33724 O-2-8241 | XOG Operating LLC only | Powderhorn (4 North) | Calhoun | 1 | 112K | 148K | Jan 1997 – Aug 2005 |
| State of Texas Unit #2 O-3-22772 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Lee | 2 | 102K | 1.05M | Jul 1995 – Apr 2026 |
| State of Texas O-2-8270 | Rincon Petroleum Corporation only | Terrell Point (3100) | Goliad | 1 | 99.7K | 505 | Mar 1997 – Mar 2026 |
| State of Texas -P- O-10-32956 | WTG Exploration only | Block 12 | Andrews | 2 | 99.3K | 189K | Jan 1993 – Apr 2026 |
| State of Texas -DX- O-10-18118 | Formentera Operations LLC only | University Waddell (Devonian) | Crane | 6 | 98.2K | 78.7K | Jan 1993 – Apr 2026 |
| State of Texas O-7-8675 | Basa Resources, Inc. only | East Texas | Rusk | 2 | 96.5K | 43.8K | Jan 1993 – Apr 2026 |
| Morrow State of Texas O-8-28736 | Sojourner Drilling Corporation only | Mulberry Canyon (Cisco) | Nolan | 1 | 91.7K | 49 | Mar 2000 – Jul 2011 |
| State of Texas -CR- O-10-21278 | XTO Energy Inc. only | Andrews, South (Wolfcamp) | Andrews | 2 | 87.7K | 251K | Jan 1993 – Apr 2026 |
| State of Texas -A-C- O-14-2378 | Qri Industries, Inc. only | Panhandle Hutchinson County Fld. | Hutchinson | 18 | 86.3K | 352K | Jan 1993 – Feb 2020 |
| State of Texas DC O-10-44632 | Jetta Operating Company, Inc. only | Two Georges (Bone Spring) | Ward | 3 | 81.8K | 288K | Nov 2012 – Dec 2019 |
| State of Texas "V" O-10-24185 | Olsen Energy Inc. only | Block 12 (Wolfcamp) | Andrews | 3 | 80.8K | 53.9K | Jan 1993 – Apr 2026 |
| State of Texas "DL" O-10-43291 | Jetta Operating Company, Inc. only | Caprito (Wolfcamp) | Ward | 2 | 80.7K | 176K | May 2012 – Mar 2023 |
| State of Texas -FE- O-10-20561 | OXY USA Inc. only | Magutex (Queen) | Andrews | 6 | 75.4K | 5.89K | Jan 1993 – May 2016 |
| State of Texas 33724 O-2-6607 | Apache Corporation only | Powderhorn (4 North) | Calhoun | 2 | 71.5K | 56.1K | Jan 1993 – Oct 1994 |
| State of Texas 'DL' O-10-61215 | Jetta Operating Company, Inc. only | Abraxas (Cherry Canyon) | Ward | 3 | 69.7K | 147K | Apr 2024 – Jun 2025 |
| State of Texas O-11-69386 | Strawn Petroleum Operating, LLC only | Hermleigh (Strawn) | Scurry | 1 | 65.6K | 220K | Nov 2008 – Jan 2021 |
| State of Texas O-10-42814 | New Height Energy, LLC only | Spraberry (Trend Area) | Martin | 2 | 65.1K | 223K | Apr 2012 – Jan 2026 |
| State of Texas G-3-159433 | Reef Exploration, L.P. only | Treasure Isle (Big Gas Sand) | Galveston | 1 | 61.8K | 9.16M | Oct 1995 – Sep 2003 |
| State of Texas "14" O-10-38779 | Crescent Energy Operating, LLC only | Estes Block 34 (Wich.-Alb., L.) | Ward | 1 | 60.3K | 104K | Dec 2007 – Apr 2026 |
| State of Texas 33724 O-2-7884 | Bep Operating, LLC only | Powderhorn (3-B) | Calhoun | 2 | 58.8K | 51.2K | Jun 1993 – Aug 2018 |
| State of Texas -DQ- O-10-14936 | Vision Oil and Gas LLC only | Dune | Crane | 7 | 58.7K | 135K | Jan 1993 – Jan 2024 |
| State of Texas -C- O-10-7361 | Chaparral Energy, L.L.C. only | Ward-Estes, North | Ward | 4 | 56.1K | 86.6K | Jan 1993 – Mar 2013 |
| State of Texas G-4-133747 | Hanson Production Company only | Frost, North (Ashby Fbii) | Starr | 1 | 51.1K | 1.17M | Jan 1993 – Jun 2008 |
| State of Texas -BB- O-10-385 | Bass Petroleum, Inc only | Block 6 (Devonian) | Andrews | 2 | 50.6K | 3.19K | Jan 1993 – Dec 2002 |