| Neimann, Henry G-8-18101 | Foundation Energy Management LLC | Pottsville (Marble Falls) | 1 | 2.83K | 127K | Jan 1993 – Mar 2019 |
| Rea, T. K. G-8-18100 | Foundation Energy Management LLC | Pottsville (Marble Falls) | 1 | 1.22K | 331K | Jan 1993 – Mar 2019 |
| Lone Star Gas Fee G-8-18111 | Arrowhead Operating Inc. | Pottsville, South (Marble Falls) | 1 | 1.08K | 904K | Jan 2001 – Apr 2026 |
| Lone Star Gas Fee G-8-18110 | Arrowhead Operating Inc. | Pottsville, South (Marble Falls) | 1 | 1.04K | 843K | Jan 2001 – Apr 2026 |
| Dawson, D. B. G-8-18097 | Foundation Energy Management LLC | Pottsville (Marble Falls) | 1 | 984 | 267K | Jan 1993 – Mar 2019 |
| Marwitz, W. A. G-8-18099 | Foundation Energy Management LLC | Pottsville (Marble Falls) | 1 | 753 | 369K | Jan 1993 – Mar 2019 |
| Harris, J. W. G-8-40474 | Foundation Energy Management LLC | Pottsville (Marble Falls) | 1 | 282 | 18.3K | Jan 1993 – Mar 2018 |
| Burks, T. J., Estate G-8-40273 | Foundation Energy Management LLC | Pottsville (Marble Falls) | 1 | 275 | 42.7K | Jan 1993 – Mar 2019 |
| Lone Star Gas Fee G-8-18106 | Arrowhead Operating Inc. | Pottsville, South (Marble Falls) | 1 | 172 | 268K | Jan 2001 – Apr 2026 |
| Lone Star Gas Fee G-8-18108 | Arrowhead Operating Inc. | Pottsville, South (Marble Falls) | 1 | 167 | 112K | Jan 2001 – Apr 2026 |
| Jones, Travis G-8-229310 | Arrowhead Operating Inc. | Pottsville, South (Marble Falls) | 1 | 63 | 47.4K | Sep 2007 – Apr 2026 |
| Rea, T. K. G-8-175065 | Foundation Energy Management LLC | Pottsville (Marble Falls) | 1 | 53 | 5.87K | Nov 2014 – Mar 2019 |
| Lone Star Fee/Jones, Travis G-8-232485 | Arrowhead Operating Inc. | Pottsville, South (Marble Falls) | 1 | 8 | 65.2K | Sep 2007 – Apr 2026 |
| Riverside Ranch, L.P. G-13-248676 | Americo Energy Resources, LLC | Newark, East (Barnett Shale) | 1 | 0 | 0 | — |
| Myers,lujana Cox G-8-97748 | Tex-Sun Oil Company | R.J. Black (Marble Falls, Gas) | 1 | 0 | 0 | — |
| Kyle, Cynthia Unit G-8-216228 | Blackwell Operating Company | Wildcat | 1 | 0 | 0 | — |
| Mesquite G-8-221530 | Marathon Oil Company | Wildcat | 1 | 0 | 0 | — |
| Duncan Ranch G-13-220838 | Marathon Oil Company | Newark, East (Barnett Shale) | 1 | 0 | 0 | — |
| Duncan Ranch G-13-220840 | Marathon Oil Company | Newark, East (Barnett Shale) | 1 | 0 | 0 | — |
| Duncan Ranch G-13-220841 | Marathon Oil Company | Newark, East (Barnett Shale) | 1 | 0 | 0 | — |
| Duncan Ranch G-13-220842 | Marathon Oil Company | Newark, East (Barnett Shale) | 1 | 0 | 0 | — |
| Duncan, James G-13-220843 | Marathon Oil Company | Newark, East (Barnett Shale) | 1 | 0 | 0 | — |
| Klutts G-13-231427 | Quicksilver Resources Inc. | Newark, East (Barnett Shale) | 1 | 0 | 0 | — |
| Lake Davis G-13-247031 | Marathon Oil Company | Newark, East (Barnett Shale) | 1 | 0 | 0 | — |
| Riverside Ranch, L.P. - 2 G-13-248670 | Americo Energy Resources, LLC | Newark, East (Barnett Shale) | 1 | 0 | 0 | — |
| Riverside Ranch, L.P. - 3 G-13-248671 | Americo Energy Resources, LLC | Newark, East (Barnett Shale) | 1 | 0 | 0 | — |