| Stanton, Joe L. Trustee O-11-14924 | R2Q Operating LLC only | Levelland | Cochran | 49 | 600K | 266K | by Jan 1993 – Aug 2026 |
| Oldham Trust West Unit 25-41 O-10-59619 | Surge Operating, LLC only | Spraberry (Trend Area) | Howard | 2 | 595K | 1.16M | Oct 2022 – Aug 2026 |
| TP Land Trust "A" O-10-36449 | Diamondback E&P LLC only | Spraberry (Trend Area) | Midland | 12 | 594K | 965K | Nov 2000 – Aug 2026 |
| Bateman Trust Est. Account No. 1 O-11-70207 | New Height Energy, LLC only | Bateman Ranch | King | 51 | 592K | 0 | Jul 2014 – Jun 2026 |
| Bargmann Trust Unit B G-2-266766 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 586K | 2.74M | May 2012 – Aug 2026 |
| Bradford Trust B Unit 2 O-10-48457 | XTO Energy Inc. only | Spraberry (Trend Area) R 40 Exc | Midland | 4 | 583K | 921K | Jun 2016 – Aug 2017 |
| Wheat Trust 1-63 Lov O-10-42375 | Pdeh LLC only | Phantom (Wolfcamp) | Loving | 2 | 579K | 1.4M | Sep 2012 – Aug 2026 |
| Talbutt Trust O-1-15514 | Javelin Energy Partners Mgmt LLC only | Eagleville (Eagle Ford-1) | La Salle | 6 | 578K | 2.44M | Jul 2011 – Aug 2026 |
| Bargmann Trust Unit B G-2-282423 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 559K | 2.4M | May 2017 – Aug 2026 |
| Bradford Trust a Unit 3 O-10-46534 | XTO Energy Inc. only | Spraberry (Trend Area) R 40 Exc | Midland | 3 | 559K | 1.49M | Mar 2015 – Jun 2017 |
| Currie Trust 33 O-10-40133 | Crescent Energy Operating, LLC only | Garden City, S. (Wolfcamp) | Glasscock | 8 | 541K | 3.93M | Jan 2010 – Jul 2026 |
| Brunson Trust 16 B O-10-52524 | EOG Resources, Inc. only | Phantom (Wolfcamp) | Loving | 2 | 535K | 865K | Apr 2019 – Aug 2026 |
| McFaddin Trust G-3-226691 | Square Mile Energy, L.L.C. only | Gum Island,n. (Hackberry 3-C) | Jefferson | 1 | 530K | 3.97M | Mar 2007 – Feb 2015 |
| Dansby Trust O-3-22481 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Brazos | 1 | 527K | 3.28M | Jun 1994 – Aug 2026 |
| Rancho Grande Trust Unit No. 1 G-2-294677 | Marathon Oil EF LLC only | Sugarkane (Eagle Ford) | Karnes | 1 | 521K | 1.8M | Dec 2017 – Aug 2026 |
| Lawrence Trust Unit O-13-31727 | Jetta Operating Company, Inc. only | Big Mineral Creek (Viola) | Grayson | 3 | 512K | 1.23M | Apr 2010 – Jun 2025 |
| Bargmann Trust a Enervest JV B O-2-11373 | Burlington Resources O & G Co LP only | Eagleville (Eagle Ford-2) | Karnes | 1 | 496K | 763K | Sep 2017 – Jul 2026 |
| Bateman Trust Est. Account No. 1 O-11-18125 | PPC Operating Company LLC only | Bateman Ranch (B-Zone) | King | 21 | 495K | 5.94K | by Jan 1993 – Jun 2014 |
| Moody Estate Trustee O-3-21166 | Sandpoint Texas LLC only | Sweetwater Lake (S-1) | Galveston | 2 | 492K | 186K | by Jan 1993 – Apr 2026 |
| Killam O-4-12920 | Mountain V Texas, LLC only | Dove Rustler (Chernosky) | Duval | 6 | 482K | 248K | Oct 1999 – Jul 2026 |
| Bargmann Trust Unit B G-2-282461 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 467K | 2.37M | May 2017 – Jul 2026 |
| Broussard Trust O-3-26066 | Hilcorp Energy Company only | Pond Gully (Frio 8110) | Jefferson | 1 | 451K | 240K | Sep 2012 – Aug 2025 |
| Reed Trust 55-1-46 G-10-290565 | Anadarko E&P Onshore LLC only | Phantom (Wolfcamp) | Loving | 1 | 451K | 1.31M | Jan 2015 – Aug 2026 |
| Alliance Trust Unit O-3-22498 | Wildfire Energy Operating LLC only | Giddings (Austin Chalk-3) | Robertson | 1 | 447K | 476K | Sep 1994 – Jul 2026 |
| Bradford Trust a Unit 4 O-10-48950 | XTO Energy Inc. only | Spraberry (Trend Area) | Midland | 2 | 437K | 1.91M | Jul 2017 – Aug 2026 |
| Trust O-3-21999 | Hilcorp Energy Company only | Franks, NW. (8900) | Galveston | 3 | 435K | 367K | Apr 1993 – Jun 2021 |
| Ruckman Trust Unit E O-2-9785 | Burlington Resources O & G Co LP only | Eagleville (Eagle Ford-2) | Karnes | 2 | 434K | 685K | Aug 2011 – Aug 2026 |
| Rust 24 O-10-54505 | Formentera Operations LLC only | Keystone (Wolfcamp) | Winkler | 2 | 434K | 1.34M | Sep 2019 – Aug 2026 |
| Wheat Trust 1-78 Lov Unit 1 G-10-289999 | Pdeh LLC only | Phantom (Wolfcamp) | Loving | 1 | 432K | 1.71M | Jun 2014 – Aug 2026 |
| Bargmann Trust Unit B G-2-282867 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 419K | 2.06M | May 2017 – Sep 2024 |
| Bargmann Trust Unit B G-2-282675 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 417K | 1.8M | May 2017 – Aug 2026 |
| Andrews, S E Charitable Trust O-11-67158 | White Rock Oil & Gas, LLC only | Jenkins, North (Queen) | Gaines | 3 | 414K | 165K | Aug 1993 – Aug 2026 |
| Wilson Trust 126 O-10-39206 | Manti Tarka Permian OP, LLC only | Phantom (Wolfcamp) | Ward | 3 | 412K | 1.02M | Oct 2008 – Apr 2019 |
| Guthrie Trust A O-10-41445 | Crescent Energy Operating, LLC only | Garden City, S. (Wolfcamp) | Glasscock | 11 | 412K | 5.42M | Dec 2010 – Jul 2026 |
| Wheat Trust 1-78 Lov Unit 1 G-10-287525 | Pdeh LLC only | Phantom (Wolfcamp) | Loving | 1 | 408K | 1.53M | Jul 2014 – Aug 2026 |
| Maryland Trust O-4-13353 | Kaler Energy Corp. only | McCampbell (Deep Frio Cons.) | San Patricio | 5 | 405K | 319K | Oct 2004 – Aug 2026 |
| Cowden Ranch "6" O-10-31385 | Rust Oil Corp. only | Cowden (Cisco) | Ector | 5 | 405K | 839K | by Jan 1993 – May 2019 |
| Cowden Ranch -7- O-10-30181 | Rust Oil Corp. only | Cowden (Cisco) | Ector | 8 | 398K | 542K | by Jan 1993 – Aug 2026 |
| Barnett Trust 90-TTT-B01 WF D O-10-59973 | Matador Production Company only | Sandbar (Bone Spring) | Loving | 1 | 385K | 1.44M | Feb 2022 – Aug 2026 |
| Wheat Trust 1-78 Lov Unit 2 G-10-289998 | Pdeh LLC only | Phantom (Wolfcamp) | Loving | 1 | 381K | 1.45M | May 2014 – Jun 2026 |
| Lane Trust-D- O-9-17825 | Crescent Energy Operating, LLC only | Spraberry (Trend Area) | Reagan | 11 | 374K | 2.13M | Feb 2012 – Jul 2026 |
| Carmody Trust AC A O-2-12707 | Devon Energy Production Co, L.P. only | Eagleville (Eagle Ford-2) | Karnes | 1 | 374K | 632K | Oct 2023 – Aug 2026 |
| Sieber Trust State 25-12 O-10-52501 | Noble Energy Inc only | Phantom (Wolfcamp) | Reeves | 1 | 370K | 1.04M | Jun 2019 – Aug 2026 |
| Carmody Trust "B" O-2-9853 | Devon Energy Production Co, L.P. only | Eagleville (Eagle Ford-2) | Karnes | 3 | 369K | 497K | Apr 2012 – Aug 2026 |
| Rancho Grande Trust Unit No. 1 G-2-294463 | Marathon Oil EF LLC only | Sugarkane (Eagle Ford) | Karnes | 1 | 364K | 1.76M | Dec 2017 – Aug 2026 |
| Barnett Trust 90-TTT-B01 WF C O-10-59454 | Matador Production Company only | Sandbar (Bone Spring) | Loving | 1 | 360K | 1.69M | Feb 2022 – Aug 2026 |
| Bargmann Trust Unit B G-2-282894 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 360K | 1.58M | May 2017 – Aug 2026 |
| Barnett Trust 90-TTT-B01 WF B O-10-58099 | Matador Production Company only | Sandbar (Bone Spring) | Loving | 1 | 358K | 1.71M | Feb 2022 – Aug 2026 |
| Brown Trust-SS Alloc I O-1-19211 | Javelin Energy Partners Mgmt LLC only | Eagleville (Eagle Ford-1) | La Salle | 1 | 356K | 529K | Mar 2018 – Aug 2026 |
| Brown Trust-SS Alloc J O-1-19212 | Javelin Energy Partners Mgmt LLC only | Eagleville (Eagle Ford-1) | La Salle | 1 | 352K | 541K | Mar 2018 – Aug 2026 |