| Yates Field Unit O-10-24061 | Kinder Morgan Production Co LLC only | Yates | Pecos | 1,725 | 322M | 1.03B | Jan 1993 – Jul 2026 |
| Salt Creek Field Unit O-11-5254 | OXY USA WTP LP only | Salt Creek | Kent | 538 | 140M | 284M | Jan 1993 – Jul 2026 |
| Hawkins Field Unit O-6-5743 | Mmgl East Texas II, LLC only | Hawkins | Wood | 885 | 90.3M | 903M | Jan 1993 – Jul 2026 |
| Pegasus Field Unit 3 O-9-17154 | COG Operating LLC only | Pegasus (Consolidated) | Upton | 145 | 30.4M | 143M | May 2010 – Jul 2026 |
| Conroe Field Unit O-3-11659 | Highmark Energy Operating, LLC only | Conroe | Montgomery | 664 | 26.7M | 61.4M | Jan 1993 – Jul 2026 |
| Webster Field Unit O-3-10496 | P.o.&g. Operating, LLC only | Webster | Harris | 385 | 26.2M | 262M | 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 |
| Parks Field Unit 2 O-10-39630 | COG Operating LLC only | Parks (Consolidated) | Midland | 142 | 17M | 42.7M | Apr 2009 – 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 |
| Ackerly /Dean/ Field Unit O-11-60521 | Mule Kick Operating LLC only | Ackerly (Dean Sand) | Dawson | 119 | 4.63M | 2.73M | Jan 1993 – Jul 2026 |
| Williams, J. E. O-14-655 | Large Operating LLC only | Panhandle Gray County Field | Gray | 73 | 2.82M | 1.69M | Jan 1993 – Jul 2026 |
| Combs O-14-687 | Petco Energy Corporation only | Panhandle Gray County Field | Gray | 178 | 2.35M | 2.81M | Jan 1993 – Jul 2026 |
| Davis, M. B. O-14-637 | Large Operating LLC only | Panhandle Gray County Field | Gray | 59 | 2.29M | 900K | Jan 1993 – Jul 2026 |
| Twofreds, Delaware Field Unit O-10-17356 | Q Natural Resources, LLC only | Twofreds (Delaware) | Loving | 98 | 2.26M | 6.96M | Jan 1993 – Jul 2026 |
| Sprayberry Field Unit O-11-67425 | Aviator Energy, LLC only | Clayton Ranch, N. (Spraberry) | Borden | 13 | 2.15M | 422K | Aug 1995 – Jul 2026 |
| Keller, P. M. O-14-1464 | Mountainside Energy Operating, L only | Panhandle Wheeler County Field | Wheeler | 28 | 2.02M | 136K | Jan 1993 – Jul 2026 |
| Parks Field Unit 2 O-10-26538 | COG Operating LLC only | Parks (Spraberry) | Midland | 64 | 1.95M | 2.19M | Jan 1993 – Feb 2010 |
| Maurbro Field /Marg./ Unit #1 O-2-4778 | KD Energy, LLC only | Maurbro | Jackson | 52 | 1.81M | 1.67M | Jan 1993 – Jul 2026 |
| Suniland Field Unit O-11-62221 | Three Span Oil & Gas, Inc. only | Suniland | Lynn | 62 | 1.68M | 920K | Jan 1993 – Jul 2026 |
| Bryant-Whitefield a 42-43 O-10-51250 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Midland | 3 | 1.51M | 3.61M | Nov 2018 – Jul 2026 |
| Walnut Bend Field Unit No. 1 O-13-11967 | Sydri Operating, LLC only | Walnut Bend (Winger) | Cooke | 57 | 1.47M | 530K | Jan 1993 – Jul 2026 |
| Fisher, Caddie "B" O-7-7884 | Bbhp Oilfield Services LLC only | East Texas | — | 22 | 1.33M | 467K | Jan 1993 – Jul 2026 |
| Johnson Ranch Unit O-14-6772 | Bce-Mach III LLC only | Panhandle Gray County Field | Gray | 69 | 1.3M | 286K | Jan 1993 – Jul 2026 |
| Bowers, J. B., NCT-1 O-14-3269 | Large Operating LLC only | Panhandle Gray County Field | Gray | 24 | 1.23M | 421K | Jan 1993 – Jul 2026 |
| Columbus Field Unit O-3-24040 | Rusk Energy Operating LLC only | Columbus (Consolidated) | Colorado | 38 | 1.1M | 3.8M | Feb 2001 – Jul 2026 |
| Worley O-14-689 | Petco Energy Corporation only | Panhandle Gray County Field | Gray | 56 | 1.08M | 1.85M | Jan 1993 – Jul 2026 |
| Whitfield West Unit O-2-10112 | Murphy Expl. & Prod. Co. - USA only | Eagleville (Eagle Ford-2) | Karnes | 5 | 1.07M | 687K | Apr 2012 – Jul 2026 |
| Whitfield East Unit O-2-10113 | Murphy Expl. & Prod. Co. - USA only | Eagleville (Eagle Ford-2) | Karnes | 4 | 1.06M | 872K | Apr 2012 – Jul 2026 |
| Harris, T. B. (Texaco) O-7-7959 | Bbhp Oilfield Services LLC only | East Texas | — | 13 | 1.05M | 385K | Jan 1993 – Jul 2026 |
| Jackson, Wm. O-14-311 | Petco Energy Corporation only | Panhandle Gray County Field | Gray | 9 | 1.02M | 216K | Jan 1993 – Jul 2026 |
| Bush, W. B. O-14-1462 | Mountainside Energy Operating, L only | Panhandle Wheeler County Field | Wheeler | 13 | 980K | 167K | Jan 1993 – Jul 2026 |
| Keller, P. M. O-14-1443 | Arcadia Energy Resources, LLC only | Panhandle Wheeler County Field | Wheeler | 47 | 976K | 3.09M | Jan 1993 – Jul 2026 |
| Williams O-14-1409 | Exxcel Production Company only | Panhandle Wheeler County Field | Wheeler | 12 | 903K | 371K | Jan 1993 – Jul 2026 |
| Parker Fee -A- O-14-2294 | O.G.P. Operating, Inc. only | Panhandle Gray County Field | Gray | 37 | 876K | 614K | Jan 1993 – Jul 2026 |
| Paine, Robert G. O-3-10020 | Enhanced Energy Partners Corp only | Raccoon Bend (Cockfield Lower) | Austin | 27 | 820K | 178K | Jan 1993 – Jul 2026 |
| Flache, Mitchell O-11-63564 | Aviator Energy, LLC only | Brownfield, S. (Fusselman) | Terry | 3 | 809K | 40.7K | Jan 1993 – Jul 2026 |
| Williams, S.P. O-14-586 | Large Operating LLC only | Panhandle Gray County Field | Gray | 16 | 782K | 285K | Jan 1993 – Jul 2026 |
| Sadler /Penn./ Field Unit O-13-11127 | Silver Creek Oil & Gas, LLC only | Sadler (Penn.) | Grayson | 64 | 738K | 425K | Jan 1993 – Jul 2026 |
| Wright, J. E. O-14-656 | Large Operating LLC only | Panhandle Gray County Field | Gray | 14 | 723K | 199K | Jan 1993 – Jul 2026 |
| Pena-Winfield a Unit O-1-16088 | Javelin Energy Partners Mgmt LLC only | Eagleville (Eagle Ford-1) | La Salle | 3 | 695K | 869K | Jul 2012 – Jul 2026 |
| Airfield O-11-68702 | Great Western Drilling Company only | Linker (Clear Fork) | Hockley | 8 | 694K | 164K | Apr 2004 – Jun 2016 |
| Winfield C Unit O-1-16173 | Javelin Energy Partners Mgmt LLC only | Eagleville (Eagle Ford-1) | La Salle | 3 | 649K | 756K | Jul 2012 – Jul 2026 |
| Gething, E. E. NCT-2 O-14-1536 | Diamond S Energy Company only | Panhandle Gray County Field | Gray | 17 | 642K | 192K | Jan 1993 – Jul 2026 |
| Fee -244- O-14-106 | Large Operating LLC only | Panhandle Carson County Field | Carson | 138 | 633K | 1.63M | Jan 1993 – Jul 2026 |
| Kingsfield A O-10-51057 | Diamondback E&P LLC only | Spraberry (Trend Area) | Martin | 3 | 603K | 1.89M | May 2018 – Jul 2026 |
| Faulkner, S. O-14-638 | Large Operating LLC only | Panhandle Gray County Field | Gray | 21 | 599K | 413K | Jan 1993 – Jul 2026 |
| Schafer Ranch O-14-142 | Large Operating LLC only | Panhandle Carson County Field | Carson | 86 | 590K | 1.36M | Jan 1993 – Jul 2026 |
| Edwards Field Grayburg Unit O-10-20424 | AD Astra Resources, LLC only | Edwards | Ector | 84 | 585K | 120K | Jan 1993 – Jul 2026 |
| Leycomb, A. W. O-14-534 | Petco Energy Corporation only | Panhandle Gray County Field | Gray | 13 | 572K | 790K | Jan 1993 – Jul 2026 |
| Columbus Field Unit O-3-784 | Devon Energy Operating Co., L.P. only | Columbus | Colorado | 33 | 571K | 834K | Jan 1993 – May 2002 |