| Trimble Unit #6HHZ42-439-36731 | Legend Natural Gas IV, LP | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 12,500 | Jan 11, 2013 | — | — |
| Baker Unit #2HHZ42-439-36728 | Legend Natural Gas IV, LP | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 12,500 | Jan 7, 2013 | — | — |
| Baker Unit #1HHZ42-439-36729 | Legend Natural Gas IV, LP | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 12,500 | Jan 7, 2013 | — | — |
| Trimble Unit #4HHZ42-439-36734 | Legend Natural Gas IV, LP | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 12,500 | Jan 4, 2013 | — | — |
| Trimble Unit #5HHZ42-439-36730 | Legend Natural Gas IV, LP | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 12,500 | Jan 3, 2013 | — | — |
| Fletcher Unit #b 4HHZ42-497-37491 | Legend Natural Gas IV, LP | Wise, TXNewark, East (Barnett Shale) | Not on schedule | 12,000 | Jun 6, 2012 | — | — |
| Fletcher Unit #b 5HHZ42-497-37492 | Legend Natural Gas IV, LP | Wise, TXNewark, East (Barnett Shale) | Not on schedule | 12,000 | Jun 6, 2012 | — | — |
| Fletcher Unit #b 3HHZ42-497-37485 | Legend Natural Gas IV, LP | Wise, TXNewark, East (Barnett Shale) | Not on schedule | 12,000 | May 23, 2012 | — | — |
| Fletcher Unit #b 1HHZ42-497-37481 | Legend Natural Gas IV, LP | Wise, TXNewark, East (Barnett Shale) | Not on schedule | 12,000 | May 18, 2012 | — | — |
| Fletcher Unit #b 2HHZ42-497-37482 | Legend Natural Gas IV, LP | Wise, TXNewark, East (Barnett Shale) | Not on schedule | 12,000 | May 18, 2012 | — | — |
| Mereken Unit #9HHZ42-439-36602 | Legend Natural Gas IV, LP | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 12,000 | Apr 11, 2012 | — | — |
| Mereken Unit #7HHZ42-439-36598 | Legend Natural Gas IV, LP | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 12,000 | Mar 30, 2012 | — | — |
| Mereken Unit #8HHZ42-439-36601 | Legend Natural Gas IV, LP | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 12,500 | Mar 28, 2012 | — | — |
| Albertsons Unit #6HHZ42-439-36595 | Legend Natural Gas IV, LP | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 12,000 | Mar 27, 2012 | — | — |
| Albertsons Unit #7HHZ42-439-36596 | Legend Natural Gas IV, LP | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 12,000 | Mar 27, 2012 | — | — |
| Mereken Unit #5HHZ42-439-36597 | Legend Natural Gas IV, LP | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 12,000 | Mar 27, 2012 | — | — |
| Mereken Unit #6HHZ42-439-36603 | Legend Natural Gas IV, LP | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 12,000 | Mar 27, 2012 | — | — |
| M S de Flores #642-427-34599 | Legend Natural Gas IV, LP | Starr, TX | Not on schedule | 10,400 | Feb 17, 2012 | — | — |
| Samano #6042-427-34597 | Legend Natural Gas IV, LP | Starr, TX | Not on schedule | 10,500 | Feb 6, 2012 | — | — |
| Carter Foundation Unit #5HHZ42-439-36481 | Legend Natural Gas IV, LP | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 12,500 | Jan 5, 2012 | — | — |
| Carter Foundation Unit #6HHZ42-439-36482 | Legend Natural Gas IV, LP | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 12,000 | Jan 5, 2012 | — | — |
| Carter Foundation Unit #7HHZ42-439-36483 | Legend Natural Gas IV, LP | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 12,000 | Jan 5, 2012 | — | — |
| Ruiz-Zamora #442-427-34591 | Legend Natural Gas IV, LP | Starr, TX | Not on schedule | 11,000 | Jan 4, 2012 | — | — |
| Carter Trust Unit #9HHZ42-439-36472 | Legend Natural Gas IV, LP | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 12,000 | Dec 27, 2011 | — | — |
| Carter Trust Unit #10HHZ42-439-36473 | Legend Natural Gas IV, LP | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 12,000 | Dec 27, 2011 | — | — |
| Stevenson Unit #8HHZ42-439-36445 | Legend Natural Gas IV, LP | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 12,000 | Dec 13, 2011 | — | — |
| Stevenson Unit #10HHZ42-439-36446 | Legend Natural Gas IV, LP | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 12,000 | Dec 13, 2011 | — | — |
| Stevenson Unit #11HHZ42-439-36447 | Legend Natural Gas IV, LP | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 12,000 | Dec 13, 2011 | — | — |
| Stevenson Unit #12HHZ42-439-36449 | Legend Natural Gas IV, LP | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 12,000 | Dec 13, 2011 | — | — |
| Stevenson Unit #13HHZ42-439-36450 | Legend Natural Gas IV, LP | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 12,000 | Dec 13, 2011 | — | — |
| Stevenson Unit #24HHZ42-439-36451 | Legend Natural Gas IV, LP | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 12,000 | Dec 13, 2011 | — | — |
| Stevenson Unit #9HHZ42-439-36455 | Legend Natural Gas IV, LP | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 12,000 | Dec 13, 2011 | — | — |
| Mansfield Partners #21HHZ42-439-36426 | Legend Natural Gas IV, LP | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 12,000 | Dec 1, 2011 | — | — |
| Mansfield Partners #20HHZ42-439-36391 | Legend Natural Gas IV, LP | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 12,000 | Nov 9, 2011 | — | — |
| Mansfield Partners #15HHZ42-439-36377 | Legend Natural Gas IV, LP | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 12,000 | Nov 4, 2011 | — | — |
| Floyd Walker Unit #4HHZ42-439-36363 | Legend Natural Gas IV, LP | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 12,000 | Nov 2, 2011 | — | — |
| Mitchell Ranch #i 59HHZ42-221-31907 | Legend Natural Gas IV, LP | Hood, TXNewark, East (Barnett Shale) | Not on schedule | 12,000 | Oct 31, 2011 | — | — |
| Mitchell Ranch #i 58HHZ42-221-31909 | Legend Natural Gas IV, LP | Hood, TXNewark, East (Barnett Shale) | Not on schedule | 12,000 | Oct 31, 2011 | — | — |
| Mitchell Ranch #i 40HHZ42-221-31903 | Legend Natural Gas IV, LP | Hood, TXNewark, East (Barnett Shale) | Not on schedule | 12,000 | Oct 26, 2011 | — | — |
| Mansfield Partners #11HHZ42-439-36348 | Legend Natural Gas IV, LP | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 12,000 | Oct 26, 2011 | — | — |
| Mansfield Partners #9HHZ42-439-36335 | Legend Natural Gas IV, LP | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 12,000 | Oct 21, 2011 | — | — |
| Carter-Alcon Unit #5HHZ42-439-36306 | Legend Natural Gas IV, LP | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 12,000 | Oct 6, 2011 | — | — |
| Norton Unit #1HHZ42-367-35057 | Legend Natural Gas IV LP | Parker, TXNewark East (Barnett Shale) | PluggedGas | 9,000 | Feb 9, 2010 | — | — |
| Matthews Unit #1HHZ42-367-35056 | Legend Natural Gas IV LP | Parker, TXNewark East (Barnett Shale) | PluggedGas | 9,000 | Feb 3, 2010 | — | — |
| Lakes of Birds Fort #102HZ42-439-32468 | Legend Natural Gas IV LP | Tarrant, TXNewark East (Barnett Shale) | PluggedGas | 9,000 | Aug 5, 2008 | — | — |
| Lakes of Birds Fort #101HZ42-439-32469 | Legend Natural Gas IV LP | Tarrant, TXNewark East (Barnett Shale) | PluggedGas | 9,000 | Aug 3, 2007 | — | — |