| Tevis "A" O-14-6263 | Pony Oil Company only | Farnsworth-Conner (Des Moines) | Ochiltree | 1 | 4.39K | 32 | by Jan 1993 – Dec 1998 |
| O'Conner, C.J. G-8-196747 | Pardue Oil, Inc. only | Manning-Oconnor (Caddo) | Stephens | 1 | 4.14K | 10.1K | Aug 2003 – Sep 2016 |
| Moore, Coy L. O-8-18924 | Conner-Marrs Company only | Brown County Regular | Brown | 2 | 4.05K | 137 | by Jan 1993 – Mar 2026 |
| Conner O-14-2191 | Chesapeake Operating, Inc. only | Farnsworth-Conner (Des Moines) | Ochiltree | 1 | 3.87K | 71.3K | by Jan 1993 – Aug 2001 |
| Conner G-14-185343 | Unbridled Resources, LLC only | Farnsworth-Conner (Des Moines) | Ochiltree | 1 | 3.67K | 97K | Sep 2001 – May 2015 |
| Conner O-11-68636 | Gunn Oil Company only | Dalwood (Woods Lime) | Dickens | 1 | 3.51K | 3.74K | May 2003 – Nov 2006 |
| O'Conner-Miller G-2-272693 | Atlas Operating LLC only | Bright Falcon (Yegua 10,300) | Jackson | 1 | 3.47K | 58.6K | Feb 2014 – Sep 2017 |
| Conner, W. T. G-6-187632 | Rose City Resources, LLC only | Lassater (Cotton Valley) | Marion | 1 | 3.38K | 1.25M | Mar 2002 – Mar 2020 |
| Conner, Ethel O-13-24328 | Bridwell Oil Co. only | Stewart (Marble Falls) | Jack | 3 | 3.33K | 95.7K | Feb 1993 – Aug 2014 |
| Halcomb "A" O-14-6276 | Latigo Petroleum Texas, LP only | Farnsworth-Conner (Des Moines) | Ochiltree | 1 | 3.32K | 9.68K | by Jan 1993 – Mar 1995 |
| Conner G-9-166803 | Vickers Production Comp L.L.C. only | Angus (Strawn) | Crockett | 1 | 3.27K | 662K | Oct 1997 – Jan 2019 |
| Corley, Betty O-8-18804 | Conner-Marrs Company only | Brown County Regular | Brown | 4 | 2.95K | 135 | by Jan 1993 – Jun 2024 |
| Conner Gas Unit G-6-98607 | Cci Gulf Coast Upstream LLC only | Red Land,north (Travis Peak) | Angelina | 1 | 2.9K | 1.24M | by Jan 1993 – Oct 2016 |
| Rogers, O. C. O-14-2781 | D C Energy, Inc. only | Farnsworth-Conner (Des Moines) | Ochiltree | 1 | 2.74K | 31.3K | Jul 1995 – Sep 2008 |
| Hawk O-14-5064 | Midwestern Exploration Co. only | Farnsworth-Conner (Des Moines) | Ochiltree | 1 | 2.63K | 21 | by Jan 1993 – Jul 1996 |
| McCalmont, Amelia A. O-14-2924 | Amoco Production Company only | Farnsworth-Conner (Des Moines) | Ochiltree | 1 | 2.49K | 15K | by Jan 1993 – Jul 1998 |
| Rogers, Annie E. O-14-2823 | Jade Mineral Holdings, L.L.C. only | Farnsworth-Conner (Des Moines) | Ochiltree | 1 | 2.43K | 11.6K | by Jan 1993 – Feb 1998 |
| Conner Estate O-13-33058 | Brower Oil & Gas Co., Inc. only | Gunn (Strawn 4970) | Baylor | 1 | 2.29K | 0 | Nov 2014 – Sep 2018 |
| Conner, Nellie O-14-2116 | Strand Energy, L.C. only | Share, SE. (Morrow, Upper) | Ochiltree | 2 | 1.79K | 16.8K | by Jan 1993 – Jan 1997 |
| Elliott O-14-7924 | Merex Resources, Inc. only | Farnsworth-Conner (Des Moines) | Ochiltree | 1 | 1.73K | 1.91K | May 2008 – Sep 2009 |
| O'Conner, Dennis Etal "N" O-2-7106 | T - C Oil Company only | Huff ( 341) | Refugio | 2 | 1.51K | 9.6K | by Jan 1993 – Apr 1994 |
| Neufeld, L.H. G-14-179417 | High River Res Operating, LLC only | Farnsworth-Conner (Des Moines) | Ochiltree | 1 | 1.45K | 58.7K | Oct 2000 – Nov 2017 |
| Connerly, Josephine -B- O-3-11297 | Oil Well Buyers Corp. only | Willow Slough, N. (F-1) | Chambers | 1 | 1.23K | 26 | by Jan 1993 – Jul 1999 |
| Neufeld, L. H. O-14-2722 | Burk Royalty Co., Ltd. only | Farnsworth-Conner (Des Moines) | Ochiltree | 1 | 1.2K | 50.9K | by Jan 1993 – Sep 2000 |
| Kaye O-14-5967 | Coop Energy, Inc. only | Farnsworth-Conner (Des Moines) | Ochiltree | 1 | 1.19K | 1.4K | Feb 1993 – Dec 1998 |
| Alma "C" O-14-7628 | Oringderff, Alma Oil Properties only | Farnsworth-Conner (Des Moines) | Ochiltree | 1 | 1.19K | 479 | Mar 2006 – Sep 2007 |
| Conner A O-13-34197 | Brower Oil & Gas Co., Inc. only | Gunn (Strawn 4970) | Baylor | 1 | 1.04K | 0 | Jun 2022 – Apr 2026 |
| Elliott O-14-2068 | Cross Timbers Operating Company only | Farnsworth-Conner (Des Moines) | Ochiltree | 1 | 1.02K | 15 | Feb 1993 – Sep 1994 |
| Conner, Lelia O-8-16582 | Sojourner Drilling Corporation only | Pierson (Strawn) | Haskell | 1 | 950 | 450 | by Jan 1993 – Feb 1995 |
| Lance -A- G-14-147348 | Rig Petroleum, LLC only | Farnsworth-Conner (Kansas City) | Ochiltree | 1 | 937 | 338K | Aug 1993 – Aug 2016 |
| Wright O-14-2108 | Apache Corporation only | Farnsworth-Conner (Des Moines) | Ochiltree | 1 | 921 | 21 | by Jan 1993 – Jan 1997 |
| Kelln, Christ H. O-14-2745 | Midgard Energy Company only | Farnsworth-Conner (Des Moines) | Ochiltree | 3 | 892 | 6.93K | by Jan 1993 – Jan 1996 |
| C. M. Morton Share Trust O-14-8055 | Rig Petroleum, LLC only | Farnsworth-Conner (Kansas City) | Ochiltree | 1 | 768 | 24.9K | Feb 2009 – Jan 2017 |
| O'Conner,v.c. "A" G-8-120502 | Richey, Ray Management Co., Inc. only | Richey (Duffer) | Stephens | 1 | 688 | 58.2K | by Jan 1993 – Oct 2010 |
| O'Conner, Louise "A" G-2-173204 | Southern Bay Operating, L.L.C. only | Anaqua, North (5375) | Victoria | 1 | 664 | 119K | Mar 1999 – Dec 2002 |
| Conner, B. L. O-14-8240 | Quanah Panhandle, LLC only | Pan Petro (Cleveland) | Ochiltree | 1 | 645 | 17.2K | May 2011 – Jul 2019 |
| Conner O-6-15535 | Buffco Production Inc. only | Lake Ferrell (Pettit, Upper) | Cass | 1 | 639 | 262 | Jan 2017 – May 2017 |
| O'Conner -D- O-2-6133 | Long Trusts, The only | Lake Pasture (FS-545) | Refugio | 1 | 561 | 12.9K | by Jan 1993 – Nov 1993 |
| Conner, C. C. -B- O-13-15733 | Del Mar only | Archer County Regular | Archer | 1 | 543 | 66 | by Jan 1993 – Jul 1998 |
| O'Conner, V.C. G-8-120500 | Texxol Operating Company, Inc. only | Richey (Duffer) | Eastland | 1 | 436 | 96K | by Jan 1993 – Sep 2016 |
| Landers et Al O-14-3922 | Midgard Energy Company only | Farnsworth-Conner (Des Moines) | Ochiltree | 1 | 418 | 64 | Mar 1993 – Oct 1993 |
| O'Conner -D- O-2-5927 | T - C Oil Company only | Lake Pasture (FS-534) | Refugio | 1 | 405 | 9.82K | by Jan 1993 – Nov 1993 |
| Conner G-6-156417 | Matador Operating Company only | New Barn (Cotton Valley Sand) | Cass | 1 | 382 | 0 | Nov 1994 – May 2001 |
| O'Conner, Louise G-2-171243 | Hart Petroleum Services, Inc only | Anaqua, North (5600) | Victoria | 1 | 371 | 35.9K | Sep 1998 – Dec 1998 |
| Carlock O-14-3093 | D & E Oil Co. only | Farnsworth-Conner (Des Moines) | Ochiltree | 3 | 360 | 345 | by Jan 1993 – Nov 1994 |
| Hawk O-14-7132 | Midwestern Exploration Co. only | Farnsworth-Conner (Kansas City) | Ochiltree | 1 | 340 | 0 | Jul 1996 – Aug 1997 |
| Conner, Lelia "A" O-8-18015 | Sojourner Drilling Corporation only | Big Bear (Strawn) | Haskell | 1 | 329 | 229 | by Jan 1993 – Jan 1994 |
| Oringderiff O-14-3125 | Oringderff, Alma Oil Properties only | Farnsworth-Conner (Des Moines) | Ochiltree | 1 | 303 | 810 | by Jan 1993 – Jan 1995 |
| Conner, Ethel "A" O-13-24605 | Bridwell Oil Co. only | Ethel Conner (Miss.) | Jack | 1 | 270 | 10 | by Jan 1993 – Oct 1993 |
| Stewart Heirs "C" O-13-24160 | Bridwell Oil Co. only | Ethel Conner (Caddo, UP) | Jack | 2 | 211 | 6.53K | by Jan 1993 – Jun 1997 |