| Stuart, J. N. G-8-114219 | Braka Operating, L.L.C. only | Stuart (Marble Falls 3700) | Palo Pinto | 1 | 4.7K | 954K | Jul 1995 – Feb 2021 |
| Hasten G-13-280093 | FX Energy Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 4.68K | 405K | Dec 2015 – Aug 2026 |
| Carroll G-8-138015 | Eastland Operating, L.L.C. only | Reb (Marble Falls) | Eastland | 1 | 4.68K | 75.4K | by Jan 1993 – Aug 2026 |
| Craft Jones East G-13-275377 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 4.59K | 118K | Apr 2014 – Jun 2021 |
| Halsell Ranch G-13-282323 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Palo Pinto | 1 | 4.52K | 185K | Apr 2018 – Jul 2023 |
| Veale,a.s. "C" G-8-127621 | Itx Corporation only | Veale (Marble Falls) | Stephens | 1 | 4.5K | 775K | by Jan 1993 – Aug 2026 |
| Woolsey G-13-282594 | Oakridge Oil and Gas, LP only | KRS (Marble Falls) | Jack | 1 | 4.44K | 62.7K | May 2017 – Aug 2026 |
| Roberts, Wade "47" G-8-237127 | Petex only | Woolfolk (Marble Falls) | Shackelford | 1 | 4.35K | 234K | Feb 2008 – 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 |
| Hidden Springs G-13-279219 | FX Energy Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 4.19K | 31.7K | Aug 2015 – Oct 2018 |
| Amburn G-13-274145 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 4.17K | 262K | Aug 2014 – Apr 2021 |
| McMurrey Ranch G-8-267508 | Eagleridge Operating, LLC only | Burns-Dalton(marble Falls) | Palo Pinto | 1 | 4.14K | 649K | Dec 2012 – Feb 2021 |
| Otis G-13-277039 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Palo Pinto | 1 | 4.14K | 126K | Jan 2014 – Mar 2026 |
| Ash G-8-275943 | Eagleridge Operating, LLC only | Burns-Dalton(marble Falls) | Palo Pinto | 1 | 4.12K | 128K | Oct 2014 – Aug 2021 |
| Parker G-8-100725 | Place Oil and Gas Co. only | Mittie (Marble Falls) | Comanche | 1 | 3.99K | 339K | by Jan 1993 – Aug 2026 |
| Brown D G-13-279079 | Oakridge Oil and Gas, LP only | KRS (Marble Falls) | Jack | 1 | 3.98K | 564K | Dec 2015 – Aug 2026 |
| Francis Vaughn G-13-272486 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 3.96K | 136K | Sep 2012 – May 2023 |
| TC Owen G-13-273702 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 3.91K | 173K | Jun 2014 – Sep 2023 |
| Stewart G-13-172740 | Walsh & Watts, Inc. only | Markley, SE. (Marble Falls) | Young | 1 | 3.78K | 30.1K | Apr 1999 – May 2011 |
| Dawson G-13-269393 | B.O.L.D. Oil and Gas, LLC only | KRS (Marble Falls) | Jack | 1 | 3.7K | 699K | Nov 2012 – Aug 2026 |
| Lindsey G-13-280027 | FX Energy Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 3.68K | 107K | Feb 2016 – May 2023 |
| Barton G-13-273693 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 3.64K | 177K | Apr 2014 – Aug 2026 |
| Wright G-8-192600 | Pendragon Oil Co. only | Reb (Marble Falls) | Eastland | 1 | 3.64K | 115K | Dec 2002 – Jul 2026 |
| Dorotha Owen G-13-274551 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 3.59K | 70.3K | Jun 2014 – Apr 2021 |
| Falls Unit G-4-161470 | LTS Oil & Gas only | Edinburg, N.W. (Frio D-1) | Hidalgo | 1 | 3.54K | 497K | Nov 1996 – Aug 2004 |
| Repass G-8-275973 | Eagleridge Operating, LLC only | Burns-Dalton(marble Falls) | Palo Pinto | 1 | 3.49K | 610K | Sep 2014 – Jul 2025 |
| Lindsey Ranch "B" G-13-244539 | Eagleridge Operating, LLC only | Post Oak, SW. (Marble Falls) | Jack | 1 | 3.46K | 342K | Aug 2008 – Aug 2026 |
| Ritchie, J.P. G-8-130994 | Richey, Ray Management Co., Inc. only | Burns-Dalton(marble Falls) | Palo Pinto | 1 | 3.44K | 271K | by Jan 1993 – Mar 2013 |
| Doss G-8-125618 | Williams Prod. Gulf Coast, L.P. only | Granbury, NE. (Marble Falls) | Hood | 1 | 3.34K | 685K | by Jan 1993 – Dec 2010 |
| Beeler G-13-273538 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 3.33K | 229K | Apr 2014 – Feb 2025 |
| Carroll G-8-125397 | Eastland Operating, L.L.C. only | Reb (Marble Falls) | Eastland | 1 | 3.31K | 73.4K | by Jan 1993 – Aug 2026 |
| Carroll G-8-125396 | Eastland Operating, L.L.C. only | Reb (Marble Falls) | Eastland | 1 | 3.28K | 61.9K | by Jan 1993 – Aug 2026 |
| Allen Heirs G-8-175387 | Blackbird R 22 OG L.L.C. only | Momma Bear (Marble Falls) | Eastland | 1 | 3.24K | 320K | Nov 1999 – Sep 2025 |
| Rickels G-8-199573 | Upham Oil & Gas Company only | Pickwick (Marble Falls) | Palo Pinto | 1 | 3.21K | 242K | Jan 2004 – Aug 2026 |
| Jones Heirs G-8-128652 | Blackbird R 22 OG L.L.C. only | Crawford (Marble Falls) | Eastland | 1 | 3.12K | 86.7K | by Jan 1993 – Sep 2025 |
| Brown-Calvert G-8-128880 | Kornye-Tillman Company only | Crawford (Marble Falls) | Eastland | 1 | 3.12K | 44.5K | by Jan 1993 – Nov 2013 |
| Bridges, Ima G-8-208450 | Lexgas, Inc. only | Momma Bear (Marble Falls) | Palo Pinto | 1 | 3.1K | 105K | Apr 2005 – Mar 2018 |
| Morris, R. L. "C" G-13-110585 | Sabre Operating, Inc. only | Meander, West (Marble Falls) | Wise | 1 | 3.09K | 57.5K | by Jan 1993 – Jul 1997 |
| Durham, H. H. G-8-143714 | North Ridge Corporation only | Reb (Marble Falls) | Eastland | 1 | 3.02K | 52.9K | by Jan 1993 – Feb 2005 |
| McCleskey G-8-143711 | Pendragon Oil Co. only | Reb (Marble Falls) | Eastland | 1 | 2.98K | 453K | by Jan 1993 – Jul 2026 |
| Harvey, James W. G-13-121796 | Wise Production Company only | Bowie, SW. (Marble Falls) | Montague | 1 | 2.97K | 150K | by Jan 1993 – Mar 2026 |
| Wilhelm G-13-279252 | FX Energy Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 2.94K | 192K | Feb 2016 – Feb 2020 |
| Matlock G-13-269428 | Best Petroleum Explorations,inc. only | KRS (Marble Falls) | Jack | 1 | 2.93K | 404K | Jun 2013 – Jan 2022 |
| Halsell Ranch G-13-279062 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 2.92K | 132K | Sep 2015 – Apr 2021 |
| Stuart, Ellen G. "B" G-8-190791 | Stephens & Johnson Operating Co. only | Strawn, NW. (Marble Falls) | Palo Pinto | 1 | 2.89K | 243K | Jun 2002 – Aug 2026 |
| Hagar G-8-112328 | Braka Operating, L.L.C. only | Fair (Marble Falls, Lower) | Eastland | 1 | 2.85K | 76.4K | by Jan 1993 – Jun 2019 |
| Frasier G-8-148794 | Eastland Operating, L.L.C. only | Mittie (Marble Falls) | Comanche | 1 | 2.83K | 150K | Jan 1994 – Aug 2026 |
| Neimann, Henry G-8-18101 | Foundation Energy Management LLC only | Pottsville (Marble Falls) | Hamilton | 1 | 2.83K | 127K | by Jan 1993 – Mar 2019 |
| Stuart, Snoddy G-8-199314 | Upham Oil & Gas Company only | Burns-Dalton(marble Falls) | Palo Pinto | 1 | 2.82K | 446K | Jan 2004 – Aug 2026 |