| Hall Trust O-10-38855 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 2 | 51.5K | 53.7K | Aug 2008 – Jul 2014 |
| Wood Trust O-2-7793 | Hart Petroleum Services, Inc only | Wood High, South (5900) | Victoria | 1 | 51.3K | 101K | by Jan 1993 – Sep 1998 |
| Brown-Trusts Unit 2 G-1-271748 | BPX Operating Company only | Hawkville (Eagleford Shale) | La Salle | 1 | 51.2K | 4.03M | Nov 2013 – Aug 2026 |
| Kentucky Trust 984 O-8-31129 | S.B. Street Operating, Inc. only | Parrott-Atkinson (Mississippian) | Throckmorton | 1 | 51K | 93.5K | Jan 2013 – Aug 2026 |
| Humphreys Trust G-14-290517 | Presidio Petroleum LLC only | Lipscomb, S.E. (Cleveland) | Hemphill | 1 | 50.9K | 676K | Jan 2019 – Aug 2026 |
| Central Bank & Trust-Furr Unit O-13-26814 | Myers, James B. only | Archer County Regular | Archer | 1 | 50.6K | 85 | by Jan 1993 – Aug 2024 |
| Price Trust 76 Lip O-14-8675 | Unbridled Resources, LLC only | Feldman (Tonkawa) | Lipscomb | 1 | 50.5K | 98.9K | Apr 2012 – Oct 2025 |
| Boston Texas Land & Trust G-4-172439 | Merit Energy Company only | Jeffress, NE. (T, Lo.-Fb,a) | Hidalgo | 1 | 50.3K | 2.44M | Feb 1999 – Aug 2026 |
| TP Land Trust "13" O-10-49458 | Diamondback E&P LLC only | Spraberry (Trend Area) | Midland | 6 | 50.2K | 62K | Jan 2018 – Aug 2026 |
| Semmes Trust , et al 906 O-4-13158 | Hilcorp Energy Company only | Rincon (80 Vicksburg) | Starr | 3 | 50.2K | 51.2K | Jun 2003 – Aug 2026 |
| St. George Gas Unit G-3-168733 | Ventex Operating Corp. only | Rusty (13000) | Matagorda | 1 | 49.3K | 3.16M | Jan 1998 – Nov 2004 |
| Flowers Trust "A" O-14-7210 | Mmgl Txph, LLC only | Mendota, NW. (Granite Wash) | Roberts | 1 | 49.1K | 1.29M | Jul 1997 – Aug 2026 |
| Mitchell 9 G-9-154850 | Hilcorp Energy Company only | Pakenham (Thrusted) | Terrell | 1 | 49.1K | 5.26M | May 1995 – Aug 2026 |
| Cranz Trust G-3-159767 | Jamex, Inc. only | Chesterville, N. (Pack) | Colorado | 1 | 49K | 4.32M | Aug 1996 – Dec 2021 |
| Boston Texas Land & Trust G-4-208623 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 48.7K | 1.39M | Mar 2005 – Aug 2026 |
| Vick Trust Unit B 3H (Allocation O-3-27199 | Wildfire Energy Operating LLC only | Madisonville, W. (Woodbine -A-) | Madison | 1 | 48.5K | 770K | Jan 2015 – Jul 2026 |
| Fossil Wildman Trust Unit No. 3 O-5-3941 | Contrast Energy, LLC only | Hilltop Resort (Glen Rose 8498) | Leon | 1 | 48.2K | 8.87K | Mar 2011 – Jun 2025 |
| Sumner Trust Unit O-3-24834 | Triangle Three Resources L.L.C. only | Brookshire | Waller | 2 | 47.8K | 62.6K | Mar 2006 – Jun 2020 |
| Boston Texas Land & Trust G-4-270878 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 47.7K | 3.08M | Oct 2013 – Aug 2026 |
| Carter, M.K. Trust NCT-2 O-10-27854 | Olsen Energy Inc. only | Edwards -04- (Bend, S.) | Crane | 1 | 47.6K | 43K | by Jan 1993 – Aug 2026 |
| Jones Trust 21 O-14-9238 | Upland Resources LLC only | Feldman (Tonkawa) | Hemphill | 1 | 47.6K | 670K | Nov 2014 – Aug 2026 |
| Ash, Teer 9 Winburg Trust Unit O-5-3033 | Dixieland Energy LLC only | Richland | Navarro | 3 | 47.5K | 83 | by Jan 1993 – Jul 2024 |
| Nelson, C. S. Trust et Al G-2-147165 | CLR Secondary Recovery, LLC only | Limes (Wilcox F-1) | Live Oak | 1 | 47.5K | 1.92M | Oct 1993 – Jan 2016 |
| Boston Texas Land & Trust G-4-271416 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 47.5K | 2.87M | Dec 2013 – Aug 2026 |
| Thornton Trust 4-60 G-10-268078 | Permian Resources Operating, LLC only | Phantom (Wolfcamp) | Reeves | 1 | 47.4K | 225K | Aug 2012 – Aug 2026 |
| Guaranty Title & Trust Co. Unit O-4-9778 | Fox, Hewitt B., Inc. only | Saxet, Deep (6200) | Nueces | 1 | 47.2K | 20 | by Jan 1993 – Aug 2026 |
| Dunn Family Trust C Unit G-13-273747 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Montague | 1 | 47.2K | 2.14M | Oct 2009 – Aug 2026 |
| Carmody Trust "C" O-2-9854 | Ovintiv USA Inc. only | Eagleville (Eagle Ford-2) | Karnes | 1 | 47K | 88K | Apr 2012 – Oct 2017 |
| Guitar Trust Estate O-10-4471 | Hall Oil and Gas LLC only | Moore | Howard | 13 | 47K | 183 | by Jan 1993 – Aug 2026 |
| Douglas Mineral Trust -H- O-13-15294 | R2Q Operating LLC only | Cash (Strawn 3820) | Wichita | 3 | 46.8K | 46 | by Jan 1993 – Aug 2026 |
| R&S Trust O-13-24732 | BKM Production only | Perrin, N. Afb (Baker SD) | Grayson | 1 | 46.7K | 284K | by Jan 1993 – Oct 2018 |
| McCarthy Family Trust 97 O-3-25825 | C & E Operating, Inc. only | Seabreeze (Pierce) | Chambers | 1 | 46.6K | 183K | Sep 2011 – Aug 2018 |
| Keffer Trust "1026" O-14-8286 | Mewbourne Oil Company only | Allen-Parker (Marmaton) | Ochiltree | 1 | 46.6K | 26.5K | Nov 2010 – Aug 2026 |
| Welch Trust 13 O-9-18963 | Diamondback E&P LLC only | Spraberry (Trend Area) R 40 Exc | Upton | 2 | 46.3K | 245K | Nov 2014 – Aug 2026 |
| McClung, Anna 1 G-9-154237 | White Rock Oil & Gas, LLC only | Pakenham (Thrusted) | Terrell | 1 | 46.2K | 3.8M | Jan 1995 – Aug 2026 |
| Regan Trust 6 O-10-44575 | Permian Resources Operating, LLC only | Wolfbone (Trend Area) | Reeves | 1 | 46K | 56.2K | Oct 2013 – Aug 2026 |
| Boston Texas Land & Trust G-4-178623 | Merit Energy Company only | Jeffress, NE. (T, Lo.-Fb,a) | Hidalgo | 1 | 45.9K | 2.58M | Jul 2000 – Apr 2025 |
| JP Trust 76 Lip G-14-270164 | Unbridled Resources, LLC only | Lipscomb (Cleveland) | Lipscomb | 1 | 45.7K | 217K | Apr 2013 – Aug 2026 |
| Sabine Royalty Trust G-6-279700 | Eqv Operating LLC only | Carthage (Cotton Valley) | Panola | 1 | 45.7K | 3.71M | Mar 2015 – Aug 2026 |
| Boston Texas Land & Trust G-4-169846 | Merit Energy Company only | Jeffress, NE. (T, Lo.-Fb,a) | Hidalgo | 1 | 45.6K | 2.98M | Aug 1998 – Oct 2016 |
| C-Bruni Mineral Trust G-4-137342 | Chevron U. S. A. Inc. only | Bashara-Hereford (7300) | Webb | 1 | 45.6K | 5.44M | by Jan 1993 – Mar 2011 |
| Boston Texas Land & Trust G-4-200065 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 45.4K | 2.56M | Jan 2004 – Aug 2026 |
| Dunn Family Trust B Unit G-13-274127 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Montague | 1 | 44.8K | 1.09M | Oct 2009 – Aug 2026 |
| Lane Trust-C- O-10-44813 | Diamondback E&P LLC only | Spraberry (Trend Area) | Glasscock | 1 | 44.7K | 139K | Nov 2013 – Mar 2026 |
| Brown-Trusts G-1-278626 | BPX Operating Company only | Hawkville (Eagleford Shale) | La Salle | 1 | 44.5K | 743K | Nov 2015 – Aug 2026 |
| Frost Trust 49 G-4-188049 | Hilcorp Energy Company only | Vaquillas Ranch (Lobo Cons.) | Webb | 1 | 44.5K | 2.76M | Jan 2002 – Aug 2026 |
| Boston Texas Land & Trust G-4-201080 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 44.2K | 1.35M | Mar 2004 – Aug 2026 |
| Price Trust 604 O-14-7736 | BE Anadarko II, LLC only | Wolfcreek (Atoka) | Lipscomb | 1 | 44K | 1.23M | Mar 2007 – Oct 2018 |
| Mauritz, H. & Trust O-2-6583 | Fredco only | Mauritz (5650 Sand) | Jackson | 3 | 44K | 21 | by Jan 1993 – Aug 2026 |
| C-Bruni Mineral Trust G-4-135182 | Hilcorp Energy Company only | Bashara-Hereford (7300) | Webb | 1 | 43.9K | 7.41M | by Jan 1993 – Aug 2026 |