| Katz (Strawn) Unit O-8-30524 | Atlas Operating LLC | Katz (Strawn) | 245 | 13.1M | 30.2M | May 2010 – Jul 2026 |
| Flowers /Canyon Sand/ Unit O-8-9713 | Citation Oil & Gas Corp. | Flowers (Canyon Sand) | 354 | 4.54M | 1.2M | Jan 1993 – Jul 2026 |
| Southwest River Unit O-8-25630 | Kinder Morgan Production Co LLC | Katz | 50 | 2.35M | 329K | Jan 1993 – Feb 2010 |
| C.B. Long Unit O-8-25595 | Kinder Morgan Production Co LLC | Katz (5100) | 39 | 2.14M | 242K | Jan 1993 – Feb 2010 |
| East River Unit O-8-24609 | Kinder Morgan Production Co LLC | Katz (5100) | 44 | 1.27M | 47.7K | Jan 1993 – Feb 2010 |
| West Flowers Unit O-8-11787 | Grayrock Energy II, LLC | Flowers, W. (Canyon Sand) | 98 | 1.15M | 600K | Jan 1993 – Jul 2026 |
| Corsica Unit O-8-30910 | Scout Energy Management LLC | Corsica (Bend Conglomerate) | 52 | 1.07M | 683K | Dec 2011 – Jul 2026 |
| Weir, W. C. -A- O-8-5152 | Clear Fork, Incorporated | Frankirk, N. (Canyon Reef) | 8 | 1.05M | 136K | Jan 1993 – Jul 2026 |
| Southwest River Unit O-8-25644 | Kinder Morgan Production Co LLC | Katz (5100) | 20 | 843K | 134K | Jan 1993 – Feb 2010 |
| Fast Break (Tannehill Sand) Unit O-8-26817 | Ridglea Energy I, LLC | Fast Break (Upper Tannehill) | 16 | 836K | 54.7K | Feb 1993 – Jul 2026 |
| Bissett, NE (Strawn Lime) O-8-25485 | New Height Energy, LLC | Bissett, NE (Strawn Lime) | 25 | 724K | 43.2K | Jan 1993 – Jul 2026 |
| Fuzz (Strawn 5600) Unit O-8-24883 | Walsh & Watts, Inc. | Fuzz (Strawn 5600) | 17 | 718K | 152K | Jan 1993 – Apr 2021 |
| Smith, Lee, Etal O-8-8987 | Tacor Resources Inc | Guest (Canyon Sand) | 20 | 644K | 639K | Jan 1993 – Jul 2026 |
| McMillin (Canyon Sand) Unit O-8-11863 | L.C.S. Production Company | Guest (Canyon Sand) | 75 | 637K | 377K | Jan 1993 – Jul 2026 |
| Henkel, H. A., Etal O-8-8463 | L.C.S. Production Company | Mengel, E. (Canyon Sand) | 24 | 609K | 181K | Jan 1993 – Jul 2026 |
| Davan Unit O-8-10597 | Winn Operating, LLC | Davan (Strawn Sand) | 20 | 500K | 151K | Jan 1993 – Jul 2026 |
| Jones, Elvin O-8-28171 | G & F Oil, Inc. | Bob Cat Canyon (Tannehill) | 7 | 486K | 0 | Apr 1997 – Jul 2026 |
| Gillum A O-8-25140 | L.C.S. Production Company | Mengel, E. (Canyon Sand) | 17 | 483K | 176K | Jan 1993 – Jul 2026 |
| Ellison Unit O-8-27045 | Lomax Operating Company, Inc. | Stonewall (Tannehill) | 18 | 441K | 79 | Nov 1993 – Jul 2000 |
| Pruitt (Tannehill) Unit O-8-28348 | Quatro Oil and Gas, Inc. | Pruitt (Tannehill) | 25 | 418K | 0 | Dec 1997 – Jul 2026 |
| Guest /Canyon Sand/ Unit O-8-10855 | R3 Operating Corporation | Guest (Canyon Sand) | 49 | 413K | 223K | Jan 1993 – Jul 2026 |
| Pittcock O-8-22594 | Pop Operating Company | Linsay Marie (Strawn) | 2 | 402K | 21.5K | Jan 1993 – Jul 2026 |
| Saltlick O-8-31549 | Scout Energy Management LLC | Corsica (Strawn) | 7 | 393K | 134K | Jul 2014 – Jul 2026 |
| Smith, I. E. O-8-8690 | L.C.S. Production Company | Mengel (Canyon) | 25 | 385K | 145K | Jan 1993 – Jul 2026 |
| Peacock Tannehill Unit O-8-26776 | Extex Operating Company | Peacock (Tannehill) | 12 | 370K | 34.7K | Jan 1993 – Jul 2026 |
| Martin, A.D. O-8-26634 | MWL Energy LLC | Bob Cat Canyon (Tannehill) | 12 | 369K | 212 | Jan 1993 – Jul 2026 |
| Smith, Walter Unit O-8-28573 | L.C.S. Production Company | Mengel, E. (Canyon Sand) | 19 | 369K | 66.8K | Dec 1998 – Jul 2026 |
| Hunt, C. O. O-8-4405 | Winn Operating, LLC | Old Glory (Strawn) | 6 | 358K | 37.5K | Jan 1993 – Jul 2026 |
| East Flowers/Canyon/Unit O-8-10632 | R3 Operating Corporation | Flowers (Canyon Sand) | 37 | 350K | 58K | Jan 1993 – Jul 2026 |
| McCoy O-8-24819 | Extex Operating Company | Brazos River Bend (Conglomerate) | 4 | 341K | 280K | Jan 1993 – Jul 2026 |
| Altman, R.F. O-8-25623 | Sojourner Drilling Corporation | Oxbow (Upper Tannehill) | 3 | 340K | 20 | Jan 1993 – Jul 2026 |
| Boyd Conglomerate Unit O-8-12346 | Williams, A. Oil | Boyd (Conglomerate) | 59 | 306K | 162K | Jan 1993 – Jul 2026 |
| Brinkley "A" O-8-4263 | Grayrock Energy II, LLC | Flowers (Canyon Sand) | 52 | 303K | 190K | Jan 1993 – Jul 2026 |
| Henson O-8-21346 | Anderson, Dorman | Pruitt (Tannehill) | 13 | 279K | 50.9K | Jan 1993 – Mar 2008 |
| Pittcock Tannehill Unit O-8-27907 | Permex Petroleum Corporation | Geneview (Tannehill) | 21 | 274K | 0 | Jul 1996 – Jul 2026 |
| Graham, C.H. O-8-22318 | Salida Exploration, LLC | Cedar Break (Tannehill) | 5 | 274K | 7.97K | Jan 1993 – Jul 2026 |
| Weir, W. C., Estate -E- O-8-10388 | L.C.S. Production Company | Frankirk, N. (Canyon Reef) | 2 | 254K | 325K | Jan 1993 – Jul 2026 |
| Pittcock O-8-16369 | Permex Petroleum Corporation | Gloria Gay, W. (Tannehill, Up.) | 13 | 251K | 19K | Jan 1993 – Jul 2026 |
| Gillum O-8-22529 | L.C.S. Production Company | Mengel, E. (Canyon Sand) | 12 | 245K | 67.7K | Jan 1993 – Jul 2026 |
| Springer-Wilson O-8-19242 | H&G Petroleum Corporation | Red Canyon (Tannehill) | 4 | 242K | 1.69K | Jan 1993 – Jul 2026 |
| East River Unit O-8-24607 | Kinder Morgan Production Co LLC | Katz | 19 | 238K | 4.42K | Jan 1993 – Nov 2009 |
| Northwest Sagerton Unit O-8-28108 | Sojourner Drilling Corporation | Amy B. (Jud Sand) | 13 | 234K | 38.5K | Jan 1997 – Jul 2026 |
| Chambless, H. B. O-8-4316 | Star Production, Inc. | Guest (Canyon Sand) | 13 | 230K | 76.9K | Jan 1993 – Jul 2026 |
| Byrd O-8-20821 | M. E. Operating & Services, Inc. | Jayton, E. (Tannehill) | 10 | 219K | 142 | Jan 1993 – Jul 2026 |
| Sarah O-8-25209 | Extex Operating Company | Corsica (Bend Conglomerate) | 4 | 218K | 452K | Jan 1993 – Jul 2026 |
| Duda O-8-25476 | Karper Oil & Gas Corporation | Mullen Ranch (Bend) | 2 | 203K | 57.7K | Jan 1993 – Jan 2015 |
| Southwest River Unit O-8-25643 | Kinder Morgan Production Co LLC | Katz (Day) | 4 | 199K | 38.3K | Jan 1993 – Feb 2010 |
| Bissett,n(parfet,strawn,lwr)unit O-8-26318 | Sojourner Drilling Corporation | Bissett,n.(parfet,strawn,lower) | 10 | 197K | 14 | Jan 1993 – Jul 2026 |
| Wash O-8-32614 | Walsh & Watts, Inc. | Sylvester, East (Strawn) | 3 | 195K | 255K | Mar 2022 – Jul 2026 |
| Bissett, NE (Strawn Sand) O-8-25484 | New Height Energy, LLC | Bissett, NE (Strawn Sand) | 14 | 189K | 12K | Jan 1993 – Jul 2026 |