| Falls City Unit O-2-5361 | Legend Natural Gas II, LP only | Falls City (Uma) | Karnes | 2 | 9.4K | 1.89K | by Jan 1993 – Oct 1997 |
| Wharton O-8-27829 | North Texas Plugging, LLC only | Strawn, NW. (Marble Falls) | Palo Pinto | 4 | 9.35K | 1.09M | Apr 1996 – Jul 2018 |
| Long Ranch O-8-22437 | Stephens & Johnson Operating Co. only | C.B. Long, (Marble Falls) | Palo Pinto | 3 | 9.34K | 731K | by Jan 1993 – Jun 2018 |
| Jaggers 'A' O-8-31539 | FX Energy Operating, LLC only | Burns-Dalton(marble Falls) | Palo Pinto | 1 | 9.28K | 180K | May 2014 – Jan 2022 |
| Campbell, R., Estate O-13-11378 | Dimock Operating Company only | A & D (Marble Falls Congl. 4900) | Archer | 2 | 9.24K | 20 | Feb 1993 – Jan 2008 |
| Keeter-Grable O-8-18266 | Quality Oilfield Service, Inc. only | Ewalt, N. (Marble Falls) | Throckmorton | 2 | 9.21K | 21 | by Jan 1993 – Feb 1997 |
| Easter, Lorene O-13-22746 | D L Operating only | Crum (Marble Falls) | Jack | 1 | 9.16K | 198K | Jul 1993 – Aug 2026 |
| Seale O-13-32864 | Newark E&P Operating, LLC only | KRS (Marble Falls) | Palo Pinto | 1 | 9.14K | 150K | Feb 2014 – Aug 2015 |
| SRC-Allen "A" O-8-23253 | Bayou Operating Company, Inc. only | Williams (Marble Falls) | Brown | 1 | 9.11K | 4.57K | by Jan 1993 – Jul 2009 |
| Holland O-13-32897 | FX Energy Operating, LLC only | KRS (Marble Falls) | Palo Pinto | 1 | 9.05K | 119K | May 2014 – May 2022 |
| Mower O-13-33346 | Oakridge Oil and Gas, LP only | KRS (Marble Falls) | Jack | 1 | 9.01K | 186K | Jun 2014 – Aug 2021 |
| Johnson O-13-34214 | Caribou Operating, Inc. only | Antelope,s.e. (Marble Falls) | Jack | 2 | 8.97K | 201K | Jul 2023 – Jul 2026 |
| Person O-13-33354 | Bowles Energy, Inc. only | KRS (Marble Falls) | Jack | 1 | 8.93K | 105K | Jan 2015 – Aug 2026 |
| Wilton "A" O-13-23261 | D L Operating only | Crum (Marble Falls) | Jack | 1 | 8.93K | 156K | by Jan 1993 – Aug 2026 |
| Ethel Worthington O-13-32956 | Oakridge Oil and Gas, LP only | Neale (Marble Falls) | Jack | 2 | 8.9K | 59.9K | Mar 2014 – Apr 2016 |
| Price, Ann O-13-21903 | Case Resources, LLC only | Price(marble Falls Conglomerate) | Young | 1 | 8.88K | 26.7K | by Jan 1993 – Dec 2018 |
| Schmitz O-13-32292 | FX Energy Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 8.86K | 200K | Aug 2012 – Jan 2022 |
| McFall, R.E. O-10-49710 | DSR Oil & Gas, Inc. only | Goldsmith, W. (San Andres) | Ector | 2 | 8.83K | 268 | Mar 2018 – Aug 2026 |
| Court, Thomas O-8-29609 | Stephens & Johnson Operating Co. only | Strawn (Marble Falls) | Palo Pinto | 2 | 8.82K | 744K | Jul 2005 – Feb 2015 |
| Spiller O-13-33565 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 8.8K | 55.4K | Dec 2014 – Aug 2021 |
| Byerly-Akers "189" O-13-29959 | Gannett Operating LLC only | Karran, North (Marble Falls) | Young | 1 | 8.75K | 47.9K | Nov 2001 – Sep 2016 |
| Fry O-13-33727 | Rife Energy Operating, Inc. only | KRS (Marble Falls) | Jack | 2 | 8.68K | 60.4K | Jun 2017 – Aug 2026 |
| Langford "C" O-8-24127 | Hunter Energy, Inc. only | Johnston Gap (Marble Falls) | Palo Pinto | 7 | 8.61K | 168K | by Jan 1993 – Apr 2006 |
| Collie O-13-33658 | G & F Oil, Inc. only | KRS (Marble Falls) | Jack | 1 | 8.6K | 47.4K | May 2017 – Jul 2026 |
| Scott O-13-33896 | G & F Oil, Inc. only | KRS (Marble Falls) | Jack | 1 | 8.54K | 31.2K | Jul 2019 – Jul 2026 |
| Flinn O-8-29576 | J-Tec Operating, LLC only | Strawn, NW. (Marble Falls) | Palo Pinto | 1 | 8.42K | 215K | Apr 2005 – Aug 2026 |
| Ham-Bone O-13-33069 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 8.42K | 212K | Jun 2014 – Jul 2024 |
| Hoefle O-13-32272 | Paratus Petroleum LLC only | KRS (Marble Falls) | Jack | 1 | 8.42K | 124K | Jun 2012 – Aug 2026 |
| Johnson Ranch O-8-31178 | Brigadier Operating, LLC only | Burns-Dalton(marble Falls) | Palo Pinto | 2 | 8.3K | 330K | Oct 2012 – Jul 2015 |
| Harrelson G-8-200950 | Braka Operating, L.L.C. only | Richardson (Marble Falls) | Eastland | 1 | 8.26K | 91.8K | Nov 2003 – Aug 2026 |
| Big Brushy O-8-28217 | Upham Oil & Gas Company only | Strawn, NW. (Marble Falls) | Palo Pinto | 1 | 8.24K | 128K | May 1997 – Dec 2004 |
| Hull O-13-33343 | Delfin Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 8.2K | 229K | Oct 2014 – Aug 2026 |
| Ethel Worthington O-13-32651 | Legacy Exploration, LLC I only | Post Oak, SW. (Marble Falls) | Jack | 2 | 8.19K | 100K | Aug 2013 – Nov 2017 |
| Sikes Unit O-8-31006 | Eagleridge Operating, LLC only | Oran (Marble Falls) | Palo Pinto | 1 | 8.19K | 362K | Jan 2012 – Jul 2020 |
| Cain O-8-18090 | Place Oil and Gas Co. only | Carbon (Marble Falls) | Eastland | 2 | 8.19K | 176K | by Jan 1993 – Aug 2026 |
| Anderson O-8-27125 | Glahn Resources, Inc. only | Moon, SE. (Marble Falls 3940) | Stephens | 1 | 8.14K | 247K | Jan 1994 – Jul 2026 |
| Geye G-8-246776 | Interstate Explorations LLC only | Brown Co. Regular (Marble Falls) | Brown | 1 | 8.07K | 259K | Dec 2008 – Aug 2026 |
| Stamper Fowler O-13-32709 | Oakridge Oil and Gas, LP only | Kadane (Marble Falls) | Jack | 1 | 8.07K | 203K | Apr 2013 – Jul 2018 |
| Ware O-13-32184 | D L Operating only | KRS (Marble Falls) | Jack | 1 | 8.05K | 94.4K | May 2012 – Aug 2026 |
| Falls, Minnie "2" O-11-67086 | Walker Oil and Gas Ltd only | Sharon Ridge (Clear Fork) | Scurry | 1 | 8.04K | 26 | Apr 1993 – Mar 2021 |
| Graham, Mary Est. O-13-21491 | Petex only | Crum (Marble Falls) | Jack | 3 | 7.97K | 118K | by Jan 1993 – Jul 2004 |
| BA Smith O-13-32178 | Brigadier Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 7.89K | 288K | May 2012 – Dec 2014 |
| Hollister-Owen O-13-32420 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 7.87K | 406K | Oct 2012 – Jan 2024 |
| Halsell Ranch G-13-277317 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Palo Pinto | 1 | 7.8K | 192K | Sep 2015 – May 2021 |
| Moorhouse O-13-19917 | Rayco Operating, Inc. only | Benjamin, W. (Marble Falls) | Knox | 1 | 7.78K | 51 | by Jan 1993 – May 2001 |
| Moore, A. O-8-23590 | Braka Operating, L.L.C. only | Sabana (Marble Falls) | Eastland | 1 | 7.76K | 453K | by Jan 1993 – Aug 2026 |
| Teague-Richards Unit O-13-32531 | FX Energy Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 7.72K | 584K | May 2013 – Mar 2024 |
| North Watson O-13-33463 | Rife Energy Operating, Inc. only | KRS (Marble Falls) | Clay | 1 | 7.69K | 49.1K | Sep 2015 – Sep 2022 |
| Holub C-5 O-8-22826 | Hunter Energy, Inc. only | Johnston Gap (Marble Falls) | Palo Pinto | 2 | 7.66K | 74.1K | by Jan 1993 – Oct 2005 |
| McClure Hart Unit G-13-277666 | Eagleridge Operating, LLC only | KRS (Marble Falls) | Palo Pinto | 1 | 7.66K | 328K | Mar 2015 – Aug 2026 |