| Drees Unit Psa E O-2-11330 | Murphy Expl. & Prod. Co. - USA only | Eagleville (Eagle Ford-2) | Karnes | 1 | 210K | 348K | Mar 2017 – Jan 2022 |
| Drees Unit Psa J O-2-12501 | Murphy Expl. & Prod. Co. - USA only | Eagleville (Eagle Ford-2) | Karnes | 1 | 205K | 222K | Apr 2022 – Aug 2026 |
| Trees Ranch 10L O-10-59057 | Continental Resources, Inc. only | Phantom (Wolfcamp) | Pecos | 1 | 202K | 443K | Oct 2022 – Aug 2026 |
| Trees Ranch 0807 G-10-298513 | Continental Resources, Inc. only | Ruppel (Woodford) | Pecos | 1 | 196K | 5.63M | Jul 2023 – Aug 2026 |
| Reese, J. T. O-3-6476 | Yordes Energy, LLC only | Allen Dome | Brazoria | 10 | 164K | 0 | Jun 2000 – May 2026 |
| Trees Ranch 11B O-10-59043 | Continental Resources, Inc. only | Phantom (Wolfcamp) | Pecos | 1 | 160K | 377K | Oct 2022 – Aug 2026 |
| Drees A-179 O-2-9458 | Murphy Expl. & Prod. Co. - USA only | Eagleville (Eagle Ford) | Karnes | 1 | 158K | 139K | Mar 2010 – Nov 2010 |
| Crockett Reese State Unit O-10-46903 | COG Operating LLC only | Two Georges (Bone Spring) | Loving | 1 | 157K | 240K | Jun 2015 – Sep 2018 |
| Trees, J. C. Estate, et al -A- O-10-17459 | Eliteenergyholdings LLC only | Waha, North (Delaware Sand) | Reeves | 9 | 154K | 193K | by Jan 1993 – Aug 2026 |
| Reese O-3-21932 | Goldking Minerals Mgmt, L.L.C. only | Alvin, North (7900) | Brazoria | 1 | 150K | 137K | Feb 1993 – Jun 1997 |
| Reese "35" O-10-41990 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 2 | 132K | 192K | Jul 2011 – Mar 2026 |
| Rees-Gifford Gas Unit G-3-171300 | Kaiser-Francis Oil Company only | Jones Creek, North (Wilcox) | Wharton | 1 | 129K | 2.71M | Jun 1998 – Nov 2019 |
| Trees, J. C., Estate, et Al O-10-23273 | Sanchez Basin Resources LLC only | Waha, W. (Consolidated Delaware) | Reeves | 7 | 118K | 1.28M | by Jan 1993 – Jul 2026 |
| Trees State 5657A O-10-65500 | Continental Resources, Inc. only | Ruppel (Woodford) | Pecos | 1 | 117K | 376K | Apr 2026 – Aug 2026 |
| Trees State 65-36 O-10-48116 | Parsley Energy Operations, LLC only | Phantom (Wolfcamp) | Reeves | 1 | 104K | 107K | Aug 2016 – Dec 2016 |
| Trees Ranch 65-64 O-10-47976 | Parsley Energy Operations, LLC only | Phantom (Wolfcamp) | Reeves | 1 | 102K | 89.6K | Aug 2016 – Dec 2016 |
| Rees, T. A. O-10-26065 | Cross Cut Petroleum, LLC only | Turner-Gregory (Clear Fork) | Mitchell | 15 | 100K | 21 | by Jan 1993 – Aug 2026 |
| Reese, J.T.-State Lease 74684 O-3-12471 | Yordes Energy, LLC only | Allen Dome | Brazoria | 2 | 99.5K | 746 | by Jan 1993 – May 2026 |
| Trees Estate "12" O-10-36000 | Meco IV, LLC only | Waha (Delaware) | Pecos | 3 | 90.2K | 604K | Oct 1998 – Jul 2018 |
| Trees Estate -77- O-10-20803 | Rosehill Operating Company, LLC only | Athey (Wolfcamp 10900) | Pecos | 2 | 83.7K | 385K | by Jan 1993 – Feb 2018 |
| Trees Ranch 47 O-10-47341 | Continental Resources, Inc. only | Phantom (Wolfcamp) | Pecos | 1 | 83K | 172K | Sep 2014 – Aug 2022 |
| Sims-Drees Unit No. 1 O-4-13627 | Sandalwood Exploration, L.P. only | Taft, Deep (a-2 Sand) | San Patricio | 1 | 82.3K | 78.9K | Aug 2010 – Feb 2023 |
| Rees-Gifford Gas Unit G-3-189061 | Kaiser-Francis Oil Company only | Jones Creek, North (Wilcox) | Wharton | 1 | 78.4K | 1.63M | Feb 2002 – Oct 2019 |
| Sims-Drees Unit No. 1 O-4-13602 | Sandalwood Exploration, L.P. only | Taft, Deep (C-2 SD, 6000) | San Patricio | 1 | 77K | 113K | Feb 2010 – Feb 2021 |
| Graham, E. S., Bat. #1 O-13-11699 | Reese Wellsite Supervision, LLC only | Young County Regular | Young | 8 | 60.5K | 59.9K | by Jan 1993 – Aug 2026 |
| Trees, J. C. Estate et Al O-10-34286 | Eliteenergyholdings LLC only | Waha, West (Delaware) | Reeves | 4 | 54.9K | 763K | Aug 1994 – Aug 2025 |
| Trees State 14-15 O-10-48402 | Parsley Energy Operations, LLC only | Phantom (Wolfcamp) | Pecos | 1 | 49.6K | 48.2K | Nov 2016 – Dec 2016 |
| List Unit O-8-25199 | Reese Wellsite Supervision, LLC only | List (Caddo) | Throckmorton | 1 | 43.4K | 4.74K | by Jan 1993 – Aug 2026 |
| Mueller, E. &j. O-8-24560 | Hofco, Inc. only | Glahn-Reese (King Sd.) | Haskell | 3 | 39.7K | 39 | by Jan 1993 – Sep 2010 |
| Trees -43- O-10-26235 | Moonlite Oil & Gas Company only | A. G. H. (Cherry Canyon) | Pecos | 2 | 39.2K | 58.8K | by Jan 1993 – Aug 2026 |
| Reese, J. O. O-11-60208 | Southwest Royalties, Inc. only | Ackerly (Dean Sand) | Martin | 2 | 36.1K | 85.9K | by Jan 1993 – Mar 2019 |
| Mueller O-8-23959 | D.J. & T. Energy only | Glahn-Reese (King Sd.) | Haskell | 5 | 35.4K | 18 | by Jan 1993 – Aug 2004 |
| Trees, J. C. Estate et al "A" O-10-34410 | Sanchez Basin Resources LLC only | Waha, West (Delaware) | Reeves | 1 | 32.9K | 90.8K | Sep 1994 – Feb 2026 |
| Reese O-10-21557 | Pogo Panhandle 2004, L.P. only | Spraberry (Trend Area) | Martin | 3 | 29.1K | 51.5K | by Jan 1993 – Apr 2002 |
| Mildred Thompson "A" G-5-257531 | Diversified Production LLC only | Freestone (CV-Bossier Cons.) | Limestone | 1 | 28.6K | 3.4M | Apr 2010 – Aug 2026 |
| Hudson "A" G-5-146834 | Hilcorp Energy Company only | Freestone (CV-Bossier Cons.) | Limestone | 1 | 23.9K | 3.49M | Sep 1993 – Aug 2026 |
| Reese 16 O-9-6485 | Burlington Resources Oil&gas Co. only | McCamey | Upton | 16 | 18.9K | 21 | by Jan 1993 – Dec 1996 |
| McFerran U-Burleson McBay U G-5-284175 | Diversified Production LLC only | Freestone (CV-Bossier Cons.) | Limestone | 1 | 18.6K | 5.37M | Oct 2017 – Aug 2026 |
| Trees 13 O-10-38253 | Whiting Oil and Gas Corporation only | Trees Ranch (Detrital) | Pecos | 1 | 18.5K | 54.8K | Jan 2007 – Jul 2012 |
| Trees Estate O-10-27532 | Moonlite Oil & Gas Company only | Burns (Cherry Canyon) | Pecos | 1 | 17.1K | 20.4K | by Jan 1993 – May 2023 |
| Reese C G-1-287465 | Trinity Operating (Usg), LLC only | Hawkville (Eagleford Shale) | Webb | 1 | 16.5K | 9.64M | Jul 2019 – Aug 2026 |
| Hudson "A" G-5-151833 | XTO Energy Inc. only | Freestone (CV-Bossier Cons.) | Limestone | 1 | 16.2K | 3.5M | Sep 1994 – Oct 2007 |
| Trees 13 O-10-43886 | Parsley Energy Operations, LLC only | Phantom (Wolfcamp) | Pecos | 1 | 16K | 17.7K | Jun 2012 – Dec 2016 |
| Brees Unit O-3-26598 | Proline Energy Resources Inc only | Ft. Trinidad, E. (Edwards) | Houston | 1 | 15.7K | 7.65K | Feb 2015 – May 2025 |
| Trees State 50 O-10-38079 | Pioneer Natural Res. USA, Inc. only | Trees Ranch (Detrital) | Pecos | 1 | 15.3K | 131K | Nov 2006 – Aug 2014 |
| State-Trees "18" G-10-176346 | Meco IV, LLC only | Waha (Delaware) | Pecos | 1 | 15K | 888K | Oct 1999 – May 2018 |
| Echols, Bill O-8-30182 | Echols Oil Company, L.L.C. only | Reese Payton (1500) | Stephens | 1 | 14.8K | 49.8K | Jun 2008 – Aug 2026 |
| Thomas, H.D. et Al G-5-152673 | Hilcorp Energy Company only | Freestone (CV-Bossier Cons.) | Freestone | 1 | 14.7K | 3.16M | Dec 1994 – Aug 2026 |
| Trees, Joe B. Estate O-10-37280 | Roca Operating, Inc. only | Waha (Delaware) | Pecos | 2 | 14.7K | 185K | Apr 2004 – May 2015 |
| Trees Ranch 17 O-10-47724 | Parsley Energy Operations, LLC only | Phantom (Wolfcamp) | Pecos | 1 | 13.8K | 5.01K | Apr 2015 – Dec 2016 |