| Parker Trust 20 O-10-39978 | Acoma Operating, LLC only | Monahans Draw (Canyon 8388) | Ector | 4 | 61.7K | 140K | Feb 2010 – Aug 2026 |
| Reed Trust 55-1-22 Lov O-10-44171 | Pdeh LLC only | Sandbar (Bone Spring) | Loving | 1 | 61.4K | 918K | Apr 2013 – Aug 2019 |
| Utzman O-6-13017 | Long Trusts, The only | R.C.R. (Pettit -A-) | Gregg | 1 | 61.3K | 59K | by Jan 1993 – Oct 2024 |
| Trusty Oil Unit O-3-10886 | Texas Operating Partners LLC only | Village Mills, East (V-1) | Hardin | 1 | 61.2K | 91K | by Jan 1993 – Oct 2014 |
| Lane Trust -a- Oil Unit O-10-41459 | Crescent Energy Operating, LLC only | Spraberry (Trend Area) | Glasscock | 1 | 61K | 271K | Apr 2011 – Aug 2024 |
| Alamo Natl Bnk., Trustee O-1-3424 | Caribbean Energy LLC II only | Jack Frost (Crockett) | La Salle | 5 | 60.8K | 21 | by Jan 1993 – Aug 2026 |
| Payne Trust G-14-246663 | BE Anadarko II, LLC only | RFC (Morrow, Upper) | Roberts | 1 | 60.7K | 2.81M | Dec 2006 – Dec 2025 |
| J. H. Nail Trustee O-10-29718 | Diamondback E&P LLC only | Kiva (Dev) | Martin | 1 | 60.6K | 260K | by Jan 1993 – Jul 2026 |
| Bruni Mineral Trust O-4-13177 | Hilcorp Energy Company only | Brazil Pasture(wilcox Second) | Webb | 1 | 60.3K | 550K | Oct 2001 – Jun 2026 |
| Guitar Trust 7 O-10-39251 | Pioneer Natural Res. USA, Inc. only | Spraberry (Trend Area) | Martin | 1 | 60.2K | 125K | Jul 2008 – Aug 2022 |
| Sieber Trust 25 O-10-44002 | Noble Energy Inc only | Wolfbone (Trend Area) | Reeves | 2 | 60.1K | 113K | May 2013 – Dec 2018 |
| Guitar Trust Estate -A- O-10-8569 | Americo Energy Resources, LLC only | Varel (San Andres) | Howard | 2 | 59.3K | 37 | by Jan 1993 – Sep 2019 |
| Hooker Trust O-8-27071 | Sojourner Drilling Corporation only | Noodle-Central (Flippen) | Jones | 1 | 59.1K | 8 | Dec 1993 – Jul 2026 |
| Davis, Elsie F. Trustee O-3-16126 | Gcows Operating LLC only | Manvel, E. (Miocene 3300) | Brazoria | 1 | 59K | 9.14K | by Jan 1993 – Aug 2026 |
| Brown-Trusts G-1-271420 | BPX Operating Company only | Hawkville (Eagleford Shale) | La Salle | 1 | 58.9K | 1.65M | Sep 2013 – Aug 2026 |
| Jones Trust 272 G-14-278249 | BE Anadarko II, LLC only | Lipscomb (Cleveland) | Lipscomb | 1 | 58.7K | 373K | Jun 2013 – Aug 2026 |
| Boston Texas Land & Trust G-4-272974 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 58.6K | 3.65M | Mar 2014 – Aug 2026 |
| Mauritz, H. & Trust O-2-6374 | Fredco only | Mauritz (5450 Frio) | Jackson | 2 | 58.5K | 81 | by Jan 1993 – Sep 2024 |
| Barton, Martha et Al O-6-12785 | Long Trusts, The only | R.C.R. (Pettit -A-) | Gregg | 2 | 58.5K | 207K | by Jan 1993 – Oct 2023 |
| Boston Texas Land & Trust G-4-270804 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 58.3K | 2.31M | Aug 2013 – Aug 2026 |
| Johnson Trust 01 G-2-260388 | Marathon Oil EF LLC only | Sugarkane (Eagle Ford) | Karnes | 1 | 57.3K | 1.69M | Apr 2011 – Aug 2026 |
| Duval Ranch, Sec. #100, a/C 2 O-4-2112 | Dewbre, Jerry C., Trustee only | Piedre Lumbre | Duval | 6 | 57.2K | 21 | by Jan 1993 – Mar 2015 |
| Mobil-Eidson "26" O-10-29579 | Rust Oil Corp. only | Mosswell (Strawn 8720) | Ector | 1 | 56.8K | 35.5K | by Jan 1993 – Aug 2005 |
| Brown Trusts Unit 3 G-1-264016 | BPX Operating Company only | Hawkville (Eagleford Shale) | La Salle | 1 | 56.6K | 4.39M | Oct 2011 – Aug 2026 |
| Parker Trust -19- O-10-28569 | Mayo, Eddie only | Monahans Draw (Canyon 8388) | Ector | 2 | 56.2K | 109K | by Jan 1993 – Aug 2011 |
| McFarland Trust O-6-14132 | Jla Resources Company only | Anwac (1400 Wilcox) | Anderson | 2 | 56.2K | 6.66K | Dec 2001 – Jun 2026 |
| Brown Trust Unit 1 G-1-261085 | BPX Operating Company only | Hawkville (Eagleford Shale) | La Salle | 1 | 55.9K | 3.22M | Aug 2011 – Aug 2026 |
| Hale O-8-21203 | Trust Oil Co. only | Grady Roberts (Gray) | Coleman | 1 | 55.8K | 197K | by Jan 1993 – Feb 2019 |
| Mitchell 4 G-9-155637 | Hilcorp Energy Company only | Pakenham (Thrusted) | Terrell | 1 | 55.7K | 4.66M | Jul 1995 – Aug 2026 |
| Prideaux O-13-10398 | Beisch, Rusty only | Archer County Regular | Archer | 31 | 55.7K | 21 | by Jan 1993 – Aug 2026 |
| Dungan-Key Trust O-4-14121 | Poco LLC only | Spartan (F-A) | San Patricio | 1 | 55.6K | 116K | Mar 2019 – Aug 2026 |
| Camp Trust 206 O-10-42419 | Noble Energy Inc only | Wolfbone (Trend Area) | Reeves | 1 | 55.2K | 93.1K | Nov 2012 – Nov 2020 |
| Boston Texas Land & Trust G-4-10990 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 54.1K | 3.55M | by Jan 1993 – Aug 2026 |
| Vick Trust Unit B 5H (Alloc) O-3-27197 | Wildfire Energy Operating LLC only | Madisonville, W. (Woodbine -A-) | Madison | 1 | 53.9K | 1.14M | Jan 2015 – Jun 2023 |
| Hager Trust 616 G-14-280951 | BE Anadarko II, LLC only | Lipscomb (Cleveland) | Lipscomb | 1 | 53.8K | 603K | Jan 2015 – Aug 2026 |
| Dickson,roberta el Al,trustees E O-10-24931 | Armor Petroleum, Inc. only | Pinal Dome (Delaware) | Loving | 1 | 53.7K | 51.2K | by Jan 1993 – Sep 2012 |
| Doby, J. B. O-7-7367 | Aaa Oil Trust only | East Texas | Gregg | 4 | 53.5K | 21.4K | by Jan 1993 – Sep 1998 |
| Schreiner Ranch Trust II G-2-144503 | Sandel Operating Company only | Oakville (Wilcox Cons.) | Live Oak | 1 | 53.2K | 1.89M | by Jan 1993 – Jan 2019 |
| McFarland, J. M. O-7-6978 | Long Trusts, The only | East Texas | Gregg | 3 | 53.1K | 31.1K | by Jan 1993 – Jul 2026 |
| Trusty Oil Unit O-3-10893 | Merit Energy Company only | Village Mills, East (W-1) | Hardin | 1 | 52.9K | 32.1K | by Jan 1993 – Sep 2000 |
| Duval State Section 64 O-4-2876 | Dewbre, Jerry C., Trustee only | Seventy-Six, West | Duval | 4 | 52.9K | 21 | by Jan 1993 – Nov 2018 |
| Flowers Trust "B" G-14-258647 | Mewbourne Oil Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 52.6K | 4.41M | Jun 2010 – Aug 2026 |
| Semmes Trust, et al "906" G-4-193558 | Hilcorp Energy Company only | Rincon (Frio Consolidated H & J) | Starr | 1 | 52.6K | 333K | Aug 2002 – Oct 2018 |
| Parker Trust 20 O-10-39886 | Crescent Energy Operating, LLC only | Goldsmith (Clear Fork) | Ector | 9 | 52.3K | 107K | Nov 2009 – Sep 2021 |
| Langtry-Shirley Trust G-2-256871 | Continental Operating Co. only | Mineral, West (7900) | Bee | 1 | 52.2K | 166K | Apr 2010 – Jan 2018 |
| JBG Childrens 1991 Trust B O-3-24237 | Iron Jaw Operating LLC only | Brookshire | Waller | 4 | 52.2K | 15.8K | Jul 2002 – Aug 2024 |
| Marshall Brothers Trusts -C- GU G-3-152177 | Galloway Lone Star, L.L.C. only | Tomball, SE. (11700) | Harris | 1 | 52.1K | 3.24M | Dec 1994 – Jan 2011 |
| Walker-Buckler Trust /TR 15/ O-8-8715 | Keating Energy, Inc. only | Gem, Northeast (Caddo) | Shackelford | 2 | 51.7K | 651K | by Jan 1993 – Aug 2026 |
| Boston Texas Land & Trust G-4-254326 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 51.6K | 1.7M | Jan 2010 – Aug 2026 |
| Furr Mineral Trust O-13-32187 | Rogers Drilling Co., Inc. only | Baylor County Regular | Baylor | 1 | 51.5K | 0 | Feb 2012 – Aug 2026 |