| Parker Trust -20- O-10-27988 | Bellwether Exploration Company | Monahans Draw (Canyon 8388) | 1 | 136 | 1.02K | by Jan 1993 – Nov 1993 |
| Desert Willow G-10-160119 | Apv McCamey LLC | Penwell (Queen) | 1 | 129 | 368K | Sep 1996 – Jul 2017 |
| W.C. Cochran O-10-48134 | Texland Petroleum, L.P. | Cowden, North | 1 | 128 | 422 | Nov 2016 – Jun 2017 |
| Connell, W.E. NCT-1 O-10-57704 | Cross Timbers Energy, LLC | Jordan (Fusselman) | 1 | 124 | 3.23K | Aug 2022 – Sep 2022 |
| Henderson O-10-48763 | Occidental Permian Ltd. | Cowden, South (Canyon 8790) | 1 | 121 | 65 | May 2017 – Sep 2017 |
| Slator -C- O-10-35498 | Anadarko Petroleum Corporation | TXL (McKee) | 1 | 119 | 809 | Apr 1997 – Aug 1997 |
| Thomas -C- O-10-19567 | Anadarko Petroleum Corporation | TXL (San Andres) | 3 | 119 | 561 | by Jan 1993 – Jun 1993 |
| Henry O-10-43619 | Scout Energy Management LLC | Goldsmith (Pennsylvanian) | 1 | 114 | 0 | Feb 2013 – Feb 2013 |
| TXL "HHH" O-10-43893 | Golden Oil and Ranch, LLC | Edwards, West (Canyon) | 1 | 109 | 0 | May 2013 – Nov 2024 |
| Parker Estate O-10-26535 | Topat Oil Corporation | Tom Roberts (Clear Fork) | 1 | 103 | 91 | by Jan 1993 – Mar 1994 |
| Nobles G-10-225566 | Maverick Permian LLC | Andector (McKee) | 1 | 100 | 55.9K | Oct 2006 – Aug 2009 |
| Holt "A" G-10-175936 | Texland Petroleum, L.P. | Penteam (Queen) | 1 | 97 | 597K | Nov 1999 – Nov 2016 |
| Southwest O-10-26791 | Incline Energy | Harper, SE. (Ellen.) | 1 | 96 | 0 | Jul 2016 – Jul 2016 |
| Parker Trust 20 O-10-56965 | Acoma Operating, LLC | Goldsmith (Clear Fork) | 7 | 96 | 0 | Oct 2022 – Aug 2026 |
| Nelson O-10-43755 | Sheridan Production Company, LLC | Bob (Devonian) | 1 | 94 | 0 | Oct 2012 – Dec 2012 |
| TXL -23- O-10-33941 | Denbury Management, Inc. | York (Queen-Grayburg) | 1 | 92 | 166 | Sep 1993 – Aug 1994 |
| Clyde -B- G-10-40947 | Conocophillips Company | Goldsmith (Grayburg) | 1 | 90 | 60.5K | by Jan 1993 – Oct 2009 |
| Clyde -B- G-10-38010 | Maverick Permian LLC | Goldsmith (Grayburg) | 1 | 90 | 1.9M | by Jan 1993 – Apr 2017 |
| Clyde -B- G-10-39203 | Maverick Permian LLC | Goldsmith, East (Grayburg) | 1 | 87 | 771K | by Jan 1993 – Jan 2018 |
| Fasken O-10-40964 | Endeavor Energy Resources L.P. | Circle Bar,east (Wichita-Albany) | 1 | 83 | 0 | Jan 2011 – Oct 2011 |
| Barrow 14 O-10-40224 | Scout Energy Management LLC | Sallie Ann (Spraberry-Wolfcamp) | 1 | 83 | 0 | Mar 2010 – Mar 2010 |
| Barrow O-10-29507 | Penick, Jerry | Cowden, North | 1 | 80 | 21 | by Jan 1993 – Jun 1995 |
| Millard -C- O-10-17311 | Conocophillips Company | Penwell (Fusselman) | 3 | 76 | 342 | May 2003 – Jun 2003 |
| Cowden, W. F., -D- R/a -A- O-10-20617 | Amoco Production Company | Goldsmith, N. (San Andres, Con.) | 2 | 76 | 2 | by Jan 1993 – Feb 1993 |
| Loter, Oscar O-10-34141 | Headington Oil Company | Goldsmith (5600) | 1 | 75 | 807 | Mar 1994 – Apr 1995 |
| Grayburg Gas Unit Xiii G-10-36021 | Linn Operating, Inc. | Goldsmith, East (Grayburg) | 1 | 74 | 617K | by Jan 1993 – May 2013 |
| Ratliff Ranch 'A' O-10-49360 | Slant Operating, LLC | Ratliff (Ellenburger) | 1 | 71 | 0 | Feb 2017 – Feb 2017 |
| TXL G-10-34165 | Saguaro Petroleum, LLC | Goldsmith, East (Grayburg) | 1 | 70 | 8.61K | by Jan 1993 – May 2020 |
| Witcher -D- O-10-21542 | Phillips Petroleum Company | Cowden, South (Canyon 8790) | 1 | 62 | 0 | May 1996 – May 1996 |
| Bradley "D" G-10-153121 | Phillips Petroleum Company | Penwell (Queen) | 1 | 53 | 966K | Jan 1995 – Sep 2001 |
| Blakeney "G" G-10-171486 | Lario Oil & Gas Company | Goldsmith, East (Queen) | 1 | 51 | 648K | Dec 1998 – Jul 2018 |
| Holt, O.B. G-10-159680 | Chevron U. S. A. Inc. | Penteam (Queen) | 1 | 45 | 196K | Jul 1996 – Oct 1998 |
| Henderson, S. O-10-36259 | Texaco E & P Inc. | Metz (Wichita-Albany) | 1 | 43 | 56 | Jan 2000 – Apr 2000 |
| TXL-X O-10-18227 | Hilcorp Energy Company | Harper (Ellenburger) | 4 | 42 | 122 | Apr 1993 – Oct 1994 |
| P & C Ranch G-10-160118 | Aghorn Operating, Inc. | Penwell (Queen) | 1 | 38 | 425K | Sep 1996 – Jun 2026 |
| Speck G-10-172791 | Aghorn Operating, Inc. | Goldsmith, East (Queen) | 1 | 33 | 698K | Mar 1999 – Jun 2026 |
| Holt, O.B. G-10-159685 | Chevron U. S. A. Inc. | Penteam (Queen) | 1 | 31 | 171K | Jul 1996 – Dec 1999 |
| TXL -L- a/C #1 O-10-17919 | Formentera Operations LLC | TXL, North (Waddell) | 1 | 30 | 0 | May 2007 – Jun 2007 |
| Cowden O O-10-18527 | Fina Oil & Chemical Company | Goldsmith, N. (San Andres, Con.) | 2 | 29 | 60 | by Jan 1993 – Jan 1993 |
| T. X. L. -D- O-10-47567 | Formentera Operations LLC | TXL (Wolfcamp, North) | 1 | 29 | 4.88K | Oct 2015 – Jun 2016 |
| Cummins, H. E. O-10-2021 | M & J Energy, Inc. | Goldsmith | 4 | 28 | 13 | Aug 1993 – Jan 1995 |
| TXL -27 O-10-33942 | Denbury Management, Inc. | York (Queen-Grayburg) | 1 | 26 | 1 | Sep 1993 – Dec 1993 |
| Cummins -12- G-10-19438 | Condor Operating Company, LLC | Goldsmith, N. (San Andres, Con.) | 1 | 24 | 264K | by Jan 1993 – Jan 2020 |
| Foster, H.S. "D" O-10-33665 | OXY USA Inc. | Cowden, South (Canyon 8790) | 1 | 23 | 1 | by Jan 1993 – Jan 1993 |
| Connell, W. E. #13 O-10-31510 | Ewt Operating Company | Penwell (Glorieta) | 1 | 22 | 7 | by Jan 1993 – Jun 1994 |
| Parker Trust -20- O-10-32431 | Mission Resources Corporation | Harper (Devonian) | 1 | 19 | 1 | Aug 1994 – Dec 1994 |
| Blakeney O-10-218 | Occidental Permian Ltd. | Andector (Ellenburger) | 1 | 19 | 0 | Mar 2014 – Sep 2015 |
| Holt, O. B. Sr., et Al G-10-166680 | Mulloy Operating, Inc. | Penteam (Queen) | 1 | 19 | 731K | May 1997 – Apr 2015 |
| TXL "At" O-10-35018 | Mariah Energy Corp. | Mosswell (Grayburg-San Andres) | 1 | 17 | 13 | Jun 1996 – Jul 1996 |
| TXL -E- G-10-253059 | Formentera Operations LLC | TXL (Ellenburger) | 1 | 16 | 34.2K | Sep 2009 – Jul 2012 |