| Branham Keller Unit #4HHZ42-425-30277 | Eagleridge Operating LLC only | Somervell, TXNewark East (Barnett Shale) | ActiveGas | 5,318 | Dec 20, 2011 | — | — |
| Branham Keller Unit #5HHZ42-425-30278 | Eagleridge Operating LLC only | Somervell, TXNewark East (Barnett Shale) | ActiveGas | 5,311 | Dec 20, 2011 | — | — |
| Hoodenpyle Unit #1HHZ42-425-30275 | Eagleridge Operating LLC only | Somervell, TXNewark East (Barnett Shale) | ActiveGas | 5,389 | Apr 13, 2011 | — | — |
| Hoodenpyle Unit #3HHZ42-425-30276 | Quicksilver Resources Inc. only | Somervell, TX | Not on schedule | 9,000 | Apr 12, 2011 | — | — |
| Hoodenpyle Unit #2HHZ42-425-30274 | Quicksilver Resources Inc. only | Somervell, TX | Not on schedule | 9,000 | Mar 7, 2011 | — | — |
| Branham Keller Unit #2HHZ42-425-30272 | Eagleridge Operating LLC only | Somervell, TXNewark East (Barnett Shale) | ActiveGas | 5,332 | Feb 8, 2011 | — | — |
| Branham Keller Unit #3HHZ42-425-30273 | Eagleridge Operating LLC only | Somervell, TXNewark East (Barnett Shale) | ActiveGas | 5,349 | Feb 8, 2011 | — | — |
| Barker Coffman Unit #6HHZ42-425-30270 | Eagleridge Operating LLC only | Somervell, TXNewark East (Barnett Shale) | ActiveGas | 5,916 | Feb 7, 2011 | — | — |
| Barker Coffman Unit #7HHZ42-425-30271 | Eagleridge Operating LLC only | Somervell, TXNewark East (Barnett Shale) | ActiveGas | 5,893 | Feb 7, 2011 | — | — |
| Barker Coffman Unit #5HHZ42-425-30269 | Eagleridge Operating LLC only | Somervell, TXNewark East (Barnett Shale) | ActiveGas | 5,861 | Jan 26, 2011 | — | — |
| Lang Unit #6HHZ42-425-30268 | Quicksilver Resources Inc. only | Somervell, TX | Not on schedule | 9,000 | Feb 22, 2010 | — | — |
| Comanche Peak North Unit #5HHZ42-425-30267 | Quicksilver Resources Inc. only | Somervell, TX | Not on schedule | 9,000 | Jan 20, 2010 | — | — |
| Comanche Peak South Unit #1HHZ42-425-30266 | Quicksilver Resources Inc. only | Somervell, TX | Not on schedule | 9,000 | Jan 15, 2010 | — | — |
| Goff Unit #1HHZ42-425-30265 | Eagleridge Operating LLC only | Somervell, TXNewark East (Barnett Shale) | ActiveGas | 5,375 | Dec 11, 2009 | — | — |
| Sexton Unit #3HHZ42-425-30264 | Eagleridge Operating LLC only | Somervell, TXNewark East (Barnett Shale) | ActiveGas | 5,385 | Nov 5, 2009 | — | — |
| Comanche Peak North Unit #4HHZ42-425-30263 | Eagleridge Operating LLC only | Somervell, TXNewark East (Barnett Shale) | Temporarily abandonedGas | 5,449 | Oct 8, 2009 | — | — |
| Luminant #2HHZ42-425-30261 | Eagleridge Operating LLC only | Somervell, TXNewark East (Barnett Shale) | Temporarily abandonedGas | 5,294 | Jun 18, 2009 | — | — |
| Luminant #1HHZ42-425-30260 | Quicksilver Resources Inc. only | Somervell, TX | Not on schedule | 9,000 | Jun 17, 2009 | — | — |
| Luminant #3HHZ42-425-30262 | Quicksilver Resources Inc. only | Somervell, TX | Not on schedule | 9,000 | Jun 17, 2009 | — | — |
| Glenhills Ranch a #1HZ42-425-30259 | Pioneer Natural Res. USA, Inc. only | Somervell, TX | Not on schedule | 5,000 | Apr 29, 2009 | — | — |
| Gregory Family Unit #2HHZ42-425-30256 | Eagleridge Operating LLC only | Somervell, TXNewark East (Barnett Shale) | ActiveGas | 5,876 | Mar 13, 2009 | — | — |
| Gregory Family Unit #3HHZ42-425-30257 | Eagleridge Operating LLC only | Somervell, TXNewark East (Barnett Shale) | ActiveGas | 5,917 | Mar 13, 2009 | — | — |
| Gregory Family Unit #4HHZ42-425-30258 | Eagleridge Operating LLC only | Somervell, TXNewark East (Barnett Shale) | Temporarily abandonedGas | 5,967 | Mar 13, 2009 | — | — |
| Gregory Family Unit #1HHZ42-425-30255 | Eagleridge Operating LLC only | Somervell, TXNewark East (Barnett Shale) | ActiveGas | 5,887 | Mar 10, 2009 | — | — |
| Unimin Unit #5HHZ42-425-30254 | Quicksilver Resources Inc. only | Somervell, TX | Not on schedule | 9,000 | Jan 26, 2009 | — | — |
| Unimin Unit #3HHZ42-425-30251 | Eagleridge Operating LLC only | Somervell, TXNewark East (Barnett Shale) | ActiveGas | 5,978 | Jan 22, 2009 | — | — |
| Unimin Unit #2HHZ42-425-30253 | Eagleridge Operating LLC only | Somervell, TXNewark East (Barnett Shale) | ActiveGas | 6,005 | Jan 22, 2009 | — | — |
| Unimin Unit #4HHZ42-425-30250 | Quicksilver Resources Inc. only | Somervell, TX | Not on schedule | 9,000 | Sep 24, 2008 | — | — |
| Unimin Unit #1HHZ42-425-30252 | Quicksilver Resources Inc. only | Somervell, TX | Not on schedule | 9,000 | Sep 24, 2008 | — | — |
| Barker Coffman Unit #8HHZ42-425-30244 | Quicksilver Resources Inc. only | Somervell, TX | Not on schedule | 9,000 | Sep 19, 2008 | — | — |
| Barker Coffman Unit #9HHZ42-425-30245 | Quicksilver Resources Inc. only | Somervell, TX | Not on schedule | 9,000 | Sep 19, 2008 | — | — |
| Barker Coffman Unit #10HHZ42-425-30246 | Quicksilver Resources Inc. only | Somervell, TX | Not on schedule | 9,000 | Sep 19, 2008 | — | — |
| Barker Coffman Unit #11HHZ42-425-30247 | Eagleridge Operating LLC only | Somervell, TXNewark East (Barnett Shale) | ActiveGas | 6,005 | Sep 19, 2008 | — | — |
| Barker Coffman Unit #5HHZ42-425-30248 | Quicksilver Resources Inc. only | Somervell, TX | Not on schedule | 9,000 | Sep 19, 2008 | — | — |
| Barker Coffman Unit #6HHZ42-425-30249 | Quicksilver Resources Inc. only | Somervell, TX | Not on schedule | 9,000 | Sep 19, 2008 | — | — |
| Shannon Parker Trust #5HHZ42-425-30241 | Quicksilver Resources Inc. only | Somervell, TX | Not on schedule | 9,000 | Sep 15, 2008 | — | — |
| Shannon Parker Trust #6HHZ42-425-30242 | Quicksilver Resources Inc. only | Somervell, TX | Not on schedule | 9,000 | Sep 15, 2008 | — | — |
| Adam Stinson Unit #2HHZ42-425-30221 | Quicksilver Resources Inc. only | Somervell, TX | Not on schedule | 9,000 | Sep 10, 2008 | — | — |
| Adam Stinson Unit #9HHZ42-425-30240 | Quicksilver Resources Inc. only | Somervell, TX | Not on schedule | 9,000 | Sep 10, 2008 | — | — |
| Adam Stinson #1HHZ42-425-30223 | Eagleridge Operating LLC only | Somervell, TXNewark East (Barnett Shale) | ActiveGas | 5,370 | Sep 5, 2008 | — | — |
| Stinson Adam Unit #4HHZ42-425-30225 | Eagleridge Operating LLC only | Somervell, TXNewark East (Barnett Shale) | ActiveGas | 5,438 | Sep 5, 2008 | — | — |
| Stinson Adam Unit #5HHZ42-425-30226 | Eagleridge Operating LLC only | Somervell, TXNewark East (Barnett Shale) | ActiveGas | 5,437 | Sep 5, 2008 | — | — |
| Adam Stinson Unit #6HHZ42-425-30227 | Eagleridge Operating LLC only | Somervell, TXNewark East (Barnett Shale) | ActiveGas | 5,423 | Sep 5, 2008 | — | — |
| Stinson Adam Unit #7HHZ42-425-30228 | Eagleridge Operating LLC only | Somervell, TXNewark East (Barnett Shale) | ActiveGas | 5,432 | Sep 5, 2008 | — | — |
| Adam Stinson Unit #8HHZ42-425-30229 | Quicksilver Resources Inc. only | Somervell, TX | Not on schedule | 9,000 | Sep 5, 2008 | — | — |
| Adam Stinson Unit #11HHZ42-425-30230 | Eagleridge Operating LLC only | Somervell, TXNewark East (Barnett Shale) | ActiveGas | 5,392 | Sep 5, 2008 | — | — |
| Stinson Adam #12HHZ42-425-30231 | Eagleridge Operating LLC only | Somervell, TXNewark East (Barnett Shale) | ActiveGas | 5,384 | Sep 5, 2008 | — | — |
| Adam Stinson Unit #10HHZ42-425-30232 | Quicksilver Resources Inc. only | Somervell, TX | Not on schedule | 9,000 | Sep 5, 2008 | — | — |
| Rebecca Brown Keller Unit #5HHZ42-425-30237 | Eagleridge Operating LLC only | Somervell, TXNewark East (Barnett Shale) | ActiveGas | 5,426 | Sep 5, 2008 | — | — |
| Rebecca Brown Keller Unit #6HHZ42-425-30238 | Eagleridge Operating LLC only | Somervell, TXNewark East (Barnett Shale) | ActiveGas | 5,417 | Sep 5, 2008 | — | — |