| Denver Unit O-11-18910 | Occidental Permian Ltd. | Wasson | 2,471 | 352M | 1.17B | Jan 1993 – Jul 2026 |
| Seminole San Andres Unit O-11-60475 | OXY USA Inc. | Seminole (San Andres) | 710 | 280M | 328M | Jan 1993 – Jul 2026 |
| Cedar Lake Unit O-11-577 | Occidental Permian EOR, LLC | Cedar Lake | 424 | 52.7M | 120M | Jan 1993 – Jul 2026 |
| North Riley Unit O-11-61559 | Bce-Mach III LLC | Riley, North | 404 | 27.3M | 15.7M | Jan 1993 – Jul 2026 |
| Wasson South Clearfork Unit O-11-62865 | Occidental Permian Ltd. | Wasson 72 | 255 | 26.3M | 32.3M | Jan 1993 – Jul 2026 |
| North Robertson Unit O-11-65930 | Bce-Mach III LLC | Robertson, N. (Clear Fork 7100) | 562 | 25.7M | 12.1M | Jan 1993 – Jul 2026 |
| Adair San Andres Unit O-11-17304 | Hilcorp Energy Company | Adair | 205 | 22.8M | 4.26M | Jan 1993 – Jul 2026 |
| Robertson /Clearfork/ Unit O-11-60580 | Hilcorp Energy Company | Robertson, N. (Clear Fork 7100) | 486 | 21.5M | 11.5M | Jan 1993 – Jul 2026 |
| South Central Robertson Unit O-11-62596 | Crescent Energy Operating, LLC | Robertson, N. (Clear Fork 7100) | 145 | 20.4M | 10M | Jan 1993 – Jul 2026 |
| West Welch Unit O-11-14783 | OXY USA WTP EOR, LLC | Welch | 687 | 20.4M | 7.45M | Jan 1993 – Jul 2026 |
| Central Robertson Clearfork Unit O-11-65590 | Occidental Permian EOR, LLC | Robertson, N. (Clear Fork 7100) | 154 | 19.6M | 7.81M | Jan 1993 – Jul 2026 |
| West Seminole SA Unit O-11-17310 | OXY USA WTP LP | Seminole, West | 226 | 18.2M | 55.7M | Jan 1993 – Jul 2026 |
| Flanagan Unit O-11-66166 | Occidental Permian EOR, LLC | Flanagan (Clearfork, Cons.) | 220 | 15.9M | 5.02M | Jan 1993 – Jul 2026 |
| Wharton Unit O-11-61365 | Bce-Mach III LLC | Harris | 212 | 13.5M | 3.84M | Jan 1993 – Jul 2026 |
| Gaines Wasson Clearfork Unit O-11-63524 | Occidental Permian Ltd. | Wasson 72 | 187 | 13.1M | 3.72M | Jan 1993 – Jul 2026 |
| Russell Clearfork Unit O-11-69587 | Hilcorp Energy Company | Russell (Clearfork Consolidated | 485 | 12.3M | 9.78M | Nov 2010 – Jul 2026 |
| Syco Unit O-11-66735 | Bce-Mach III LLC | Robertson, N. (Clear Fork 7100) | 50 | 7.45M | 3.39M | Jan 1993 – Jul 2026 |
| Robertson Unit O-11-62665 | Bce-Mach III LLC | Robertson, N. (Clear Fork 7100) | 109 | 7.29M | 2.92M | Jan 1993 – Jul 2026 |
| Russell (Clearfork 7000) Unit O-11-60679 | XTO Energy Inc. | Russell (Clearfork 7000) | 310 | 5.64M | 2.19M | Jan 1993 – Jul 2006 |
| Foster O-11-15125 | BCP Resources, LLC | D. E. B. (Wolfcamp) | 28 | 5.63M | 1.22M | Jan 1993 – Jul 2026 |
| Branex/American O-11-66731 | Texland Petroleum, L.P. | Stockyard (Clearfork, Upper) | 27 | 5.54M | 669K | Jan 1993 – Jul 2026 |
| Kinder Morgan Bergen O-11-70250 | Atlas Operating LLC | Tall Cotton (San Andres) | 72 | 5.51M | 8.41M | Oct 2014 – Jul 2026 |
| G-M-K /San Andres/ Unit O-11-60346 | Hilcorp Energy Company | G-M-K (San Andres) | 86 | 5.4M | 1.7M | Jan 1993 – Jul 2026 |
| South Harris Unit O-11-60711 | Bce-Mach III LLC | Harris | 117 | 4.96M | 1.43M | Jan 1993 – Jul 2026 |
| May, Tom O-11-61682 | Hilcorp Energy Company | G-M-K, South (San Andres) | 33 | 4.77M | 9.51M | Jan 1993 – Jul 2026 |
| Robertson (San Andres) Unit O-11-66037 | Occidental Permian EOR, LLC | Robertson, N. (San Andres) | 73 | 4.68M | 1.65M | Jan 1993 – Jul 2026 |
| Hanford (San Andres) Unit O-11-64742 | Fasken Oil and Ranch, Ltd. | Hanford (San Andres) | 52 | 4.42M | 1.63M | Jan 1993 – Jul 2026 |
| Harris San Andres Unit O-11-69347 | Parallel Petroleum LLC | Harris (San Andres) | 88 | 4.06M | 247K | Jun 2002 – Jul 2026 |
| H & J Unit 1 "D" O-11-5187 | Hilcorp Energy Company | Russell, North (Devonian) | 47 | 3.89M | 850K | Jan 1993 – Jul 2026 |
| Seminole, East (San Andres) Unit O-11-60717 | Block "T" Petroleum, Inc. | Seminole, East (San Andres) | 128 | 3.6M | 582K | Jan 1993 – Jul 2026 |
| Blackwatch (San Andres) Unit O-11-67777 | Sabinal Energy Operating, LLC | Blackwatch (San Andres) | 21 | 3.5M | 1.62M | Sep 1997 – Oct 2020 |
| South Robertson (San Andres) U. O-11-67419 | Contango Resources, Inc. | Robertson, N. (San Andres) | 60 | 3.31M | 722K | Aug 1995 – Jan 2022 |
| Jenkins Unit O-11-67164 | Sabinal Energy Operating, LLC | Jenkins (San Andres) | 41 | 3.3M | 1.2M | Dec 1993 – Oct 2020 |
| Russell (Clearfork 7000) Unit O-11-68870 | XTO Energy Inc. | Russell (Clearfork Consolidated | 306 | 3.11M | 1.46M | Nov 2005 – Jan 2011 |
| Lindoss Unit O-11-66754 | Block "T" Petroleum, Inc. | Seminole, East (San Andres) | 39 | 2.92M | 544K | Jan 1993 – Jul 2026 |
| Robertson N. Clearfork Lo. Unit O-11-62414 | Seaboard Operating Co. | Robertson, N. (Clear Fork 7100) | 48 | 2.82M | 1.55M | Jan 1993 – Jul 2026 |
| Seminole, NE (San Andres) Unit O-11-67585 | Bam Permian Operating, LLC | Seminole, NE. (San Andres) | 38 | 2.55M | 923K | Aug 1996 – Jul 2026 |
| H & J Sec. 451 O-11-5182 | Hilcorp Energy Company | Russell, North (Devonian) | 33 | 2.53M | 921K | Jan 1993 – Jul 2026 |
| Adair Wolfcamp Unit O-11-9892 | Hilcorp Energy Company | Adair (Wolfcamp) | 69 | 2.3M | 1.03M | Jan 1993 – Jul 2026 |
| Nolley Wolfcamp Unit O-10-23777 | Crescent Energy Operating, LLC | Nolley (Wolfcamp) | 67 | 2.24M | 1.52M | Jan 1993 – Jul 2026 |
| Adair S.E. (San Andres)unit O-11-66828 | Three Span Oil & Gas, Inc. | Adair | 65 | 2.13M | 132K | Jan 1993 – Jul 2026 |
| H & J Sec. 127-B O-11-61931 | Hilcorp Energy Company | G-M-K, South (San Andres) | 19 | 2.06M | 1.04M | Jan 1993 – Jul 2026 |
| Homann San Andres Unit O-11-68217 | Extex Operating Company | Homann (San Andres) | 41 | 1.99M | 295K | Sep 2000 – Jul 2026 |
| Odc /San Andres/ Unit O-11-60509 | Fusion Energy Holdings, LLC | O D C (San Andres) | 56 | 1.88M | 821K | Jan 1993 – Jul 2026 |
| Jenkins, Sam C. O-11-64495 | White Rock Oil & Gas, LLC | Jenkins, North (Clear Fork) | 22 | 1.85M | 3.08M | Jan 1993 – Dec 2022 |
| G-M-K West Unit O-11-68366 | Hilcorp Energy Company | G-M-K, West (San Andres) | 19 | 1.77M | 386K | Dec 2001 – Jul 2026 |
| Seminole Deep Unit "D" O-11-61889 | OXY USA Inc. | Seminole (Devonian) | 4 | 1.72M | 73 | Jan 1993 – Jul 2026 |
| Hardberger O-11-67625 | Grace Petroleum Operating, LLC | Champmon (Strawn) | 4 | 1.66M | 993K | Oct 1996 – Jul 2026 |
| H & J "A" O-11-61885 | Fasken Oil and Ranch, Ltd. | Havemeyer (San Andres) | 8 | 1.61M | 278K | Jan 1993 – Jul 2026 |
| Trinity University "199" O-11-66755 | Fasken Oil and Ranch, Ltd. | Three-O-Three (San Andres) | 8 | 1.59M | 1.23M | Jan 1993 – Jul 2026 |