| Richards Ranch G-13-250083 | Newark E&P Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 89.3K | 546K | Feb 2009 – Jul 2013 |
| Henderson G-13-279786 | FX Energy Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 21.2K | 215K | Nov 2015 – Aug 2026 |
| Conway G-13-273292 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 18.7K | 314K | Jan 2014 – Aug 2026 |
| Mildred G-13-280974 | FX Energy Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 18.5K | 630K | Mar 2016 – Aug 2026 |
| Crainshaw "128" G-13-253247 | Oakridge Oil and Gas, LP only | Kadane (Marble Falls) | Jack | 1 | 18.4K | 45.8K | Aug 2009 – Aug 2026 |
| Hasten G-13-279053 | FX Energy Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 17.6K | 711K | Jan 2016 – Aug 2026 |
| Van Zandt G-13-275422 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 16.4K | 450K | Aug 2014 – Aug 2026 |
| Richards Ranch G-13-279486 | FX Energy Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 16K | 296K | Sep 2015 – Aug 2026 |
| Halsell Ranch G-13-273997 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 15.6K | 1.32M | Jul 2014 – Jan 2024 |
| Cherryhomes G-13-274600 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 15.6K | 94.9K | Apr 2014 – Oct 2024 |
| Richards Ranch G-13-279339 | FX Energy Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 15.5K | 215K | Nov 2015 – Aug 2026 |
| Griffith-Williams N G-13-279768 | FX Energy Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 13.1K | 140K | Nov 2015 – Nov 2023 |
| Kirkland G-13-280358 | FX Energy Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 12.4K | 77.9K | Feb 2016 – Jul 2025 |
| Spiller G-13-274549 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 12K | 76.4K | Mar 2014 – Aug 2026 |
| Halsell Ranch G-13-278767 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 12K | 667K | Nov 2014 – Oct 2023 |
| Richards Ranch G-13-278779 | FX Energy Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 11.3K | 205K | Oct 2015 – Aug 2026 |
| Ham-Bone Unit G-13-274147 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 11K | 335K | May 2014 – Aug 2026 |
| Quick G-13-279128 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 10.3K | 164K | Feb 2015 – Mar 2025 |
| Halsell Ranch G-13-274535 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 9.95K | 544K | Mar 2014 – Jun 2024 |
| Halsell Ranch G-13-273680 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 9.76K | 719K | May 2014 – Oct 2023 |
| Ethel Worthington G-13-280450 | Oakridge Oil and Gas, LP only | Neale (Marble Falls) | Jack | 1 | 7.43K | 81.9K | May 2016 – Aug 2026 |
| Hamman A G-13-264557 | Oakridge Oil and Gas, LP only | KRS (Marble Falls) | Jack | 1 | 7.26K | 208K | Mar 2012 – Jun 2021 |
| Robertson-Deats G-13-192208 | Great American Resources Inc. only | Lost Valley (Marble Falls) | Jack | 1 | 7.15K | 54.2K | Sep 2002 – May 2017 |
| Schaake G-13-280359 | FX Energy Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 7.14K | 44.6K | Apr 2016 – Aug 2026 |
| Cody Owen Unit G-13-272332 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 7.06K | 891K | Nov 2013 – Oct 2024 |
| Gardner G-13-279855 | FX Energy Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 6.56K | 180K | Apr 2016 – Mar 2026 |
| Stamper Fowler G-13-284648 | Oakridge Oil and Gas, LP only | Kadane (Marble Falls) | Jack | 1 | 6.53K | 167K | Jul 2018 – Aug 2026 |
| Triangle J G-13-279759 | FX Energy Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 6.34K | 281K | Dec 2015 – Sep 2025 |
| Hamman G-13-282601 | Oakridge Oil and Gas, LP only | Neale (Marble Falls) | Jack | 1 | 6.25K | 262K | May 2017 – Mar 2026 |
| House G-13-275239 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 6.23K | 527K | May 2014 – Aug 2026 |
| Gowdy Ranch G-13-279074 | FX Energy Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 6.21K | 59.2K | Dec 2015 – Jul 2022 |
| Walter Ranch G-13-279082 | FX Energy Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 6.18K | 447K | Nov 2015 – Aug 2026 |
| Henderson G-13-279143 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 6.14K | 132K | Jan 2015 – Mar 2023 |
| Tabor G-13-273111 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 5.98K | 212K | Apr 2014 – Jul 2026 |
| Coca Cola G-13-282510 | Oakridge Oil and Gas, LP only | KRS (Marble Falls) | Jack | 1 | 5.71K | 128K | Apr 2017 – Aug 2026 |
| Hidden Springs G-13-279223 | FX Energy Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 5.45K | 88.9K | Aug 2015 – Oct 2018 |
| Sanders, B. G. G-13-120767 | Bridwell Oil Co. only | Stewart (Marble Falls) | Jack | 1 | 5.37K | 291K | by Jan 1993 – Jun 2008 |
| Hamman B G-13-282509 | Oakridge Oil and Gas, LP only | KRS (Marble Falls) | Jack | 1 | 5.29K | 95.7K | Apr 2017 – Aug 2026 |
| Francis Vaughn G-13-275538 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 5.18K | 281K | Jan 2013 – Jul 2026 |
| Halsell Ranch G-13-279115 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 5.15K | 234K | Sep 2015 – Aug 2021 |
| Wade, Ruby G-13-142208 | Rhyne, J.V. only | Awalt (Marble Falls) | Jack | 1 | 5.1K | 197K | by Jan 1993 – Nov 2019 |
| Flo-Coop, Inc. G-13-118549 | Jay Management Company, LLC only | Crum (Marble Falls) | Jack | 1 | 4.98K | 231K | by Jan 1993 – Mar 2003 |
| Harding G-13-280357 | FX Energy Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 4.98K | 367K | Mar 2016 – Mar 2022 |
| Leach G-13-265320 | Oakridge Oil and Gas, LP only | Rider (Marble Falls) | Jack | 1 | 4.88K | 192K | Aug 2012 – Nov 2020 |
| Lazy C G-13-279300 | FX Energy Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 4.83K | 354K | Dec 2015 – Jun 2023 |
| Hasten G-13-280093 | FX Energy Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 4.68K | 405K | Dec 2015 – Aug 2026 |
| Craft Jones East G-13-275377 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 4.59K | 118K | Apr 2014 – Jun 2021 |
| Woolsey G-13-282594 | Oakridge Oil and Gas, LP only | KRS (Marble Falls) | Jack | 1 | 4.44K | 62.7K | May 2017 – Aug 2026 |
| L.A. Worthington G-13-283988 | Oakridge Oil and Gas, LP only | KRS (Marble Falls) | Jack | 1 | 4.31K | 238K | May 2018 – Aug 2026 |
| Francis Vaughn G-13-275606 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 4.23K | 264K | Sep 2012 – Mar 2021 |