| Alliance-Freeway East Unit #242-439-31594 | Chief Oil & Gas LLC | Tarrant, TX | Not on schedule | 6,000 | Apr 20, 2006 | — | — |
| Alliance-Freeway East Unit #1HHZ42-439-31570 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,900 | Mar 30, 2006 | — | — |
| South Johnson SWD #142-251-30703 | Chief Oil & Gas LLC | Johnson, TXNewark, East (Barnett Shale) | Not on schedule | 11,200 | Dec 19, 2005 | — | — |
| Elkins Unit #1142-439-31151 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,900 | Feb 18, 2005 | — | — |
| Elkins Unit #10HHZ42-439-31152 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,900 | Feb 18, 2005 | — | — |
| Elkins Unit #13HHZ42-439-31153 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,900 | Feb 18, 2005 | — | — |
| Elkins Unit #1242-439-31154 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,900 | Feb 18, 2005 | — | — |
| Hall Unit #1HHZ42-251-30295 | Chief Oil & Gas LLC | Johnson, TXNewark, East (Barnett Shale) | Not on schedule | 8,900 | Dec 13, 2004 | — | — |
| Alliance #e 3HHZ42-121-32420 | Chief Oil & Gas LLC | Denton, TXNewark, East (Barnett Shale) | Not on schedule | 8,900 | Sep 9, 2004 | — | — |
| Courtney #2HHZ42-439-30934 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | Jul 6, 2004 | — | — |
| Worthington #2HHZ42-367-33566 | Chief Oil & Gas LLC | Parker, TXNewark, East (Barnett Shale) | Not on schedule | 8,900 | Jun 21, 2004 | — | — |
| Chapel Hill #d 442-439-30902 | Chief Oil & Gas LLC | Tarrant, TXMountain Bluff (Atoka) | Not on schedule | 4,500 | May 28, 2004 | — | — |
| Garnett Laprelle #742-439-30874 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | Apr 28, 2004 | — | — |
| Todd South #442-439-30846 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | Mar 25, 2004 | — | — |
| Todd South #542-439-30847 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | Mar 25, 2004 | — | — |
| Todd South #642-439-30848 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | Mar 25, 2004 | — | — |
| Todd South #742-439-30849 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | Mar 25, 2004 | — | — |
| Todd South #842-439-30850 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | Mar 25, 2004 | — | — |
| Todd North Unit #642-439-30838 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | Mar 16, 2004 | — | — |
| Todd North Unit #742-439-30839 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | Mar 16, 2004 | — | — |
| Meekins-Mays #542-439-30824 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | Mar 15, 2004 | — | — |
| Meekins-Mays #642-439-30825 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | Mar 15, 2004 | — | — |
| Meekins-Mays #742-439-30826 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | Mar 15, 2004 | — | — |
| Meekins-Mays #842-439-30827 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | Mar 15, 2004 | — | — |
| Meekins-Mays #942-439-30828 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | Mar 15, 2004 | — | — |
| Meekins-Mays #1142-439-30829 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | Mar 15, 2004 | — | — |
| Meekins-Mays #1242-439-30830 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | Mar 15, 2004 | — | — |
| Meekins-Mays #1042-439-30803 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | Feb 2, 2004 | — | — |
| Smelley #2HZ42-367-33479 | Chief Oil & Gas LLC | Parker, TXNewark, East (Barnett Shale) | Drilled | 8,900 | Dec 18, 2003 | — | — |
| Alliance #b 142-439-30643 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | Jun 2, 2003 | — | — |
| Alliance #b 242-439-30644 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | Jun 2, 2003 | — | — |
| Alliance #b 342-439-30645 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | Jun 2, 2003 | — | — |
| Chapel Hill #d 442-439-30574 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | Feb 7, 2003 | — | — |
| Jarvis, et al #242-439-30465 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | Jun 3, 2002 | — | — |
| Jarvis-North #142-439-30466 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | Jun 3, 2002 | — | — |
| Jarvis-North #242-439-30467 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | Jun 3, 2002 | — | — |
| Jarvis-North #342-439-30468 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | Jun 3, 2002 | — | — |
| Jarvis-North #442-439-30469 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | Jun 3, 2002 | — | — |
| Anderson #142-439-30456 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | May 31, 2002 | — | — |
| Anderson #242-439-30457 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | May 31, 2002 | — | — |
| Elkins Unit #1542-439-30459 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | May 31, 2002 | — | — |
| Elkins Unit #1642-439-30460 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | May 31, 2002 | — | — |
| Elkins Unit #1742-439-30461 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | May 31, 2002 | — | — |
| Jarvis-Laforge #142-439-30462 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | May 31, 2002 | — | — |
| Porter et al #242-439-30449 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | May 29, 2002 | — | — |
| Porter et al #342-439-30450 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | May 29, 2002 | — | — |
| Porter et al #442-439-30451 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | May 29, 2002 | — | — |
| Porter et al #542-439-30452 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | May 29, 2002 | — | — |
| Porter et al #642-439-30453 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | May 29, 2002 | — | — |
| Porter et al #842-439-30455 | Chief Oil & Gas LLC | Tarrant, TXNewark, East (Barnett Shale) | Not on schedule | 8,000 | May 29, 2002 | — | — |