| Brown Trust G-1-291303 | Javelin Energy Partners Mgmt LLC only | Eagleville (Eagle Ford-1) | La Salle | 1 | 213K | 327K | Feb 2020 – Aug 2026 |
| Boston Texas Land & Trust G-4-191126 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 212K | 7.91M | Sep 2002 – Aug 2026 |
| Newman Brown Trust A G-1-298302 | Verdun Oil EF II LLC only | Eagleville (Eagle Ford-1) | La Salle | 1 | 212K | 428K | Jun 2023 – Aug 2026 |
| Brown Trust A5 O-1-20734 | Javelin Energy Partners Mgmt LLC only | Eagleville (Eagle Ford-1) | La Salle | 1 | 212K | 336K | May 2022 – Aug 2026 |
| Wheat Trust 1-73 Lov Unit 1 G-10-287559 | Pdeh LLC only | Phantom (Wolfcamp) | Loving | 1 | 211K | 606K | Oct 2014 – Jan 2026 |
| CNB Trustees 360 O-14-7490 | Highmark Energy Operating, LLC only | Lipscomb (Cleveland) | Lipscomb | 4 | 210K | 2.22M | Jan 2004 – Aug 2026 |
| Vick Trust Unit B O-3-26660 | Wildfire Energy Operating LLC only | Madisonville, E. (Lewisville) | Madison | 1 | 210K | 1.67M | Dec 2013 – Feb 2024 |
| Rusty Nail O-10-48141 | Diamondback E&P LLC only | Spraberry (Trend Area) | Martin | 1 | 208K | 408K | Oct 2016 – Aug 2026 |
| Brown Trust A2 O-1-20731 | Javelin Energy Partners Mgmt LLC only | Eagleville (Eagle Ford-1) | La Salle | 1 | 207K | 358K | May 2022 – Aug 2026 |
| Newman Brown Trust Unit O-1-18641 | Verdun Oil EF II LLC only | Eagleville (Eagle Ford-1) | La Salle | 3 | 207K | 566K | Nov 2015 – Aug 2026 |
| Boyd Family Trust 01 G-2-270127 | Marathon Oil EF LLC only | Sugarkane (Eagle Ford) | Live Oak | 1 | 205K | 1.71M | Apr 2013 – Jul 2026 |
| Bradford Trust a Unit 4 O-10-46654 | XTO Energy Inc. only | Spraberry (Trend Area) R 40 Exc | Midland | 1 | 204K | 431K | May 2015 – Jun 2017 |
| TP Land Trust "C" O-10-36594 | Diamondback E&P LLC only | Spraberry (Trend Area) | Midland | 6 | 204K | 351K | Mar 2001 – Oct 2025 |
| Kurth, J.H. Jr. Trustee et Al O-3-17967 | Indian Exploration, Inc. only | Blue Marsh (Wilcox A-4) | Newton | 1 | 203K | 143K | by Jan 1993 – Aug 2026 |
| S & H Trust O-1-17198 | Murphy Expl. & Prod. Co. - USA only | Eagleville (Eagle Ford-1) | Atascosa | 2 | 202K | 237K | Jul 2014 – Aug 2026 |
| Trainer Trust 16 O-10-42172 | Swordfish Energy Operating, LLC only | Wolfbone (Trend Area) | Pecos | 2 | 201K | 510K | Jan 2011 – Aug 2026 |
| Brown Trust G-1-291262 | Javelin Energy Partners Mgmt LLC only | Eagleville (Eagle Ford-1) | La Salle | 1 | 201K | 316K | Jun 2019 – Aug 2026 |
| Brown Trust A4 O-1-20733 | Javelin Energy Partners Mgmt LLC only | Eagleville (Eagle Ford-1) | La Salle | 1 | 200K | 329K | May 2022 – Aug 2026 |
| Brown Trust G-1-291302 | Javelin Energy Partners Mgmt LLC only | Eagleville (Eagle Ford-1) | La Salle | 1 | 200K | 317K | Feb 2020 – Aug 2026 |
| Speary Family Trust Unit A G-2-277728 | Burlington Resources O & G Co LP only | Sugarkane (Eagle Ford) | Karnes | 1 | 199K | 1.05M | Mar 2015 – Aug 2026 |
| Cowden Ranch -6- O-10-32731 | Rust Oil Corp. only | Harper (Glorieta) | Ector | 1 | 198K | 23K | by Jan 1993 – Aug 2026 |
| Humphreys Trust G-14-291308 | Presidio Petroleum LLC only | Lipscomb, S.E. (Cleveland) | Hemphill | 1 | 198K | 5.06M | Feb 2015 – Aug 2026 |
| Baker Family Trust G-2-288785 | Burlington Resources O & G Co LP only | Sugarkane (Austin Chalk) | Live Oak | 1 | 197K | 2.6M | Mar 2020 – Aug 2026 |
| Brown Trust G-1-291263 | Javelin Energy Partners Mgmt LLC only | Eagleville (Eagle Ford-1) | La Salle | 1 | 197K | 304K | Jun 2019 – Aug 2026 |
| Boyd Family Trust 01 G-2-269407 | Marathon Oil EF LLC only | Sugarkane (Eagle Ford) | Live Oak | 1 | 197K | 1.65M | Apr 2013 – Aug 2026 |
| J. B. Trust "14" O-10-40686 | Oxyrock Operating, LLC only | Spraberry (Trend Area) | Glasscock | 8 | 197K | 947K | Oct 2010 – Aug 2026 |
| Bowles, J. F. O-7-6921 | Long Trusts, The only | East Texas | Gregg | 16 | 197K | 86.4K | by Jan 1993 – Jul 2026 |
| Guaranty Title & Trust O-4-12981 | Pine Island Operating, L.L.C. only | Saxet, Deep (8200) | Nueces | 1 | 194K | 206K | Aug 2000 – Aug 2026 |
| Johnston, Dellah -B- O-7-6963 | Long Trusts, The only | East Texas | Gregg | 5 | 192K | 94.3K | by Jan 1993 – Jul 2026 |
| Baker Family Trust G-2-271610 | Burlington Resources O & G Co LP only | Sugarkane (Eagle Ford) | Live Oak | 1 | 192K | 3.08M | Dec 2013 – Dec 2024 |
| Speary Family Trust Unit A G-2-277540 | Burlington Resources O & G Co LP only | Sugarkane (Eagle Ford) | Karnes | 1 | 192K | 1.16M | Mar 2015 – Aug 2026 |
| Talbutt Trust C G-1-290893 | Javelin Energy Partners Mgmt LLC only | Eagleville (Eagle Ford-1) | La Salle | 1 | 191K | 1.11M | Jun 2014 – Aug 2026 |
| Boston Texas Land & Trust G-4-202736 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 190K | 6.31M | Jun 2004 – Aug 2026 |
| Hamilton Trust Unit C G-2-261182 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 190K | 1.18M | May 2011 – Aug 2026 |
| Boston Texas Land & Trust G-4-176539 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 190K | 5.09M | Jan 2000 – Aug 2026 |
| Brown Trust G-1-291297 | Javelin Energy Partners Mgmt LLC only | Eagleville (Eagle Ford-1) | La Salle | 1 | 189K | 274K | Feb 2020 – Aug 2026 |
| Hamilton Trust Unit B G-2-260706 | Burlington Resources O & G Co LP only | De Witt (Eagle Ford Shale) | De Witt | 1 | 189K | 1.01M | Oct 2010 – Aug 2026 |
| Baker Family Trust G-2-255736 | Burlington Resources O & G Co LP only | Sugarkane (Austin Chalk) | Live Oak | 1 | 188K | 1.63M | Sep 2009 – Apr 2019 |
| Lindsey Trust "109-A" O-11-69223 | Rim Operating, Inc. only | Marholl (Siluro-Devonian) | Dawson | 1 | 188K | 0 | Nov 2007 – Aug 2026 |
| Stansberry, R.L. Trust O-9-13557 | Remuda Operating Company only | Toe Nail, North (Harkey) | Tom Green | 4 | 188K | 108K | Dec 1993 – Nov 2019 |
| First National Trust O-14-6986 | Courson Oil & Gas, Inc. only | Wolfcreek (Douglas) | Ochiltree | 1 | 186K | 90.9K | May 1994 – May 2026 |
| Shoe Bar Ranch "26" O-10-39649 | Rust Oil Corp. only | Mosswell (Strawn 8720) | Ector | 4 | 186K | 216K | Oct 2009 – Aug 2026 |
| TP Land Trust "F" O-10-37074 | Endeavor Energy Resources L.P. only | Spraberry (Trend Area) | Midland | 3 | 186K | 278K | Apr 2003 – Nov 2021 |
| Newman Brown Trust Unit G-1-298243 | Verdun Oil EF II LLC only | Eagleville (Eagle Ford-1) | La Salle | 1 | 185K | 355K | Jun 2023 – Aug 2026 |
| Fidelity Trust Co., et Al O-10-16760 | R2Q Operating LLC only | Waha, North (Delaware Sand) | Reeves | 5 | 184K | 435K | by Jan 1993 – Mar 2020 |
| Kolo-Neller_rhodes Trust (SA) B2 G-2-284426 | Repsol Oil & Gas USA, LLC only | Sugarkane (Eagle Ford) | Karnes | 1 | 184K | 2.48M | Feb 2018 – Jul 2026 |
| C & E Trust O-3-24732 | HD Operating Co, LLC only | M. Gaston (Carrizo -B-) | Trinity | 4 | 184K | 15.1K | Jul 2005 – Aug 2026 |
| Rancho Grande Trust Unit No. 1 G-2-294411 | Marathon Oil EF LLC only | Sugarkane (Eagle Ford) | Karnes | 1 | 183K | 818K | Feb 2017 – Aug 2026 |
| Brown-Trusts G-1-277882 | BPX Operating Company only | Hawkville (Eagleford Shale) | La Salle | 1 | 183K | 3.08M | Dec 2015 – Aug 2026 |
| S K R Trust O-13-16976 | Felty Drilling Co. Inc only | Wichita County Regular | Wichita | 23 | 183K | 21 | by Jan 1993 – Aug 2026 |