| Cocke & Goodrich Heirs #142-057-31740 | Chesapeake Operating Inc. | Calhoun, TXPowderhorn South (4700 Miocene) | PluggedGas | 6,000 | Jun 27, 2007 | — | — |
| DFW #b 4HJHZ42-439-32225 | Chesapeake Operating Inc. | Tarrant, TXNewark East (Barnett Shale) | PluggedGas | 9,000 | May 15, 2007 | — | — |
| Volpe #442-505-35819 | Chesapeake Operating Inc. | Zapata, TXWildcat | PluggedOil | 15,000 | Feb 22, 2007 | — | — |
| Lockwood #1HHZ42-439-31963 | Chesapeake Operating Inc. | Tarrant, TXNewark East (Barnett Shale) | PluggedGas | 9,000 | Feb 7, 2007 | — | — |
| Lockwood #2HHZ42-439-31964 | Chesapeake Operating Inc. | Tarrant, TXNewark East (Barnett Shale) | PluggedGas | 9,000 | Feb 7, 2007 | — | — |
| Vasquez-Uribe a Gas Unit #342-505-33645 | Chesapeake Operating Inc. | Zapata, TXLa Rica (Wilcox 7100) | PluggedGas | 9,000 | Feb 7, 2007 | — | — |
| WB 358 a #4HHZ42-439-31916 | Chesapeake Operating Inc. | Tarrant, TXNewark East (Barnett Shale) | PluggedGas | 9,000 | Jan 19, 2007 | — | — |
| Hinojosa a #942-215-33573 | Chesapeake Operating Inc. | Hidalgo, TXMcMoran (8960) | PluggedGas | 12,000 | Jan 10, 2007 | — | — |
| WB 358 a #2HHZ42-439-31914 | Chesapeake Operating Inc. | Tarrant, TXNewark East (Barnett Shale) | PluggedGas | 9,000 | Jan 10, 2007 | — | — |
| WB 358 a #3HHZ42-439-31915 | Chesapeake Operating Inc. | Tarrant, TXNewark East (Barnett Shale) | PluggedGas | 9,000 | Jan 10, 2007 | — | — |
| Vela Estate #2342-505-35774 | Chesapeake Operating Inc. | Zapata, TXWildcat | PluggedGas | 12,000 | Dec 27, 2006 | — | — |
| Cude 36 #142-137-31867 | Chesapeake Operating Inc. | Edwards, TXWildcat | PluggedGas | 12,000 | Dec 21, 2006 | — | — |
| WB 358 a #1HHZ42-439-31893 | Chesapeake Operating Inc. | Tarrant, TXNewark East (Barnett Shale) | PluggedGas | 9,000 | Dec 21, 2006 | — | — |
| Denton Texas Venture #1HHZ42-439-31878 | Chesapeake Operating Inc. | Tarrant, TXNewark East (Barnett Shale) | PluggedGas | 9,000 | Dec 12, 2006 | — | — |
| Welder Ranch B #342-469-34017 | Chesapeake Operating Inc. | Victoria, TXWildcat | PluggedGas | 14,000 | Sep 20, 2006 | — | — |
| Parker #2HHZ42-251-31178 | Chesapeake Operating Inc. | Johnson, TXNewark East (Barnett Shale) | PluggedGas | 9,000 | Sep 5, 2006 | — | — |
| Heritage of Faith #1 HHZ42-439-31745 | Chesapeake Operating Inc. | Tarrant, TXNewark East (Barnett Shale) | PluggedGas | 9,000 | Aug 29, 2006 | — | — |
| FJM #1HHZ42-439-31688 | Chesapeake Operating Inc. | Tarrant, TXNewark East (Barnett Shale) | PluggedGas | 9,000 | Jun 29, 2006 | — | — |
| RMT C #642-505-35618 | Chesapeake Operating Inc. | Zapata, TXExsun (Lobo Cons.) | PluggedGas | 12,000 | Jun 16, 2006 | — | — |
| Amanda #1HHZ42-251-30936 | Chesapeake Operating Inc. | Johnson, TXNewark East (Barnett Shale) | PluggedGas | 9,000 | Apr 27, 2006 | — | — |
| WTB #142-123-32094 | Chesapeake Operating Inc. | De Witt, TXJennie Bell (Wilcox 11500) | PluggedGas | 14,000 | Apr 11, 2006 | — | — |
| Kenney 16 State #242-109-32269 | Chesapeake Operating Inc. | Culberson, TXWildcat | PluggedGas | 8,200 | Mar 24, 2006 | — | — |
| Kenney 16 State #1HHZ42-109-32270 | Chesapeake Operating Inc. | Culberson, TXWildcat | PluggedGas | 8,200 | Mar 24, 2006 | — | — |
| Brandt #142-175-33479 | Chesapeake Operating Inc. | Goliad, TXMarshall East (Yegua 5523) | PluggedGas | 14,000 | Mar 23, 2006 | — | — |
| Cobb #1HHZ42-251-30861 | Chesapeake Operating Inc. | Johnson, TXNewark East (Barnett Shale) | PluggedGas | 9,000 | Mar 22, 2006 | — | — |
| McCook State #142-215-33453 | Chesapeake Operating Inc. | Hidalgo, TXThe Doxology (LWR Vicksburg Cons | PluggedGas | 19,000 | Mar 8, 2006 | — | — |
| Trevino Estate et al Unit #642-215-33450 | Chesapeake Operating Inc. | Hidalgo, TXMcMoran (8960) | PluggedGas | 10,000 | Mar 6, 2006 | — | — |
| Ranchetts #1HHZ42-439-31540 | Chesapeake Operating Inc. | Tarrant, TXNewark East (Barnett Shale) | PluggedGas | 9,000 | Mar 2, 2006 | — | — |
| RMT C #442-505-35488 | Chesapeake Operating Inc. | Zapata, TXZapata SE. (Wilcox) | PluggedGas | 12,000 | Jan 26, 2006 | — | — |
| Benavides Alejo #142-505-35439 | Chesapeake Operating Inc. | Zapata, TXExsun (Lobo Cons.) | PluggedGas | 12,000 | Dec 8, 2005 | — | — |
| Honey Island #142-199-32994 | Chesapeake Operating Inc. | Hardin, TXWildcat | PluggedGas | 19,000 | Nov 22, 2005 | — | — |
| Bennett #2HHZ42-251-30647 | Chesapeake Operating Inc. | Johnson, TXNewark East (Barnett Shale) | PluggedGas | 12,000 | Nov 22, 2005 | — | — |
| North Sowell a #1HHZ42-439-31423 | Chesapeake Operating Inc. | Tarrant, TXNewark East (Barnett Shale) | PluggedGas | 10,500 | Nov 21, 2005 | — | — |
| Mattie #2HHZ42-367-33830 | Chesapeake Operating Inc. | Parker, TXNewark East (Barnett Shale) | PluggedGas | 8,500 | Nov 8, 2005 | — | — |
| Mattie #1HHZ42-367-33818 | Chesapeake Operating Inc. | Parker, TXNewark East (Barnett Shale) | PluggedGas | 10,400 | Oct 27, 2005 | — | — |
| Bethany #5HHZ42-251-30603 | Chesapeake Operating Inc. | Johnson, TXNewark East (Barnett Shale) | PluggedGas | 11,000 | Oct 19, 2005 | — | — |
| Remedios 42 #142-465-10216 | Chesapeake Operating Inc. | Val Verde, TXWildcat | PluggedGas | 20,000 | Sep 21, 2005 | — | — |
| Hancock Gas Unit #342-347-32129 | Chesapeake Operating Inc. | Nacogdoches, TXNaconiche Creek (Rod.-TP Cons.) | PluggedGas | 13,000 | Sep 7, 2005 | — | — |
| Hancock Gas Unit #442-347-32130 | Chesapeake Operating Inc. | Nacogdoches, TXNaconiche Creek (Rod.-TP Cons.) | PluggedGas | 13,000 | Sep 7, 2005 | — | — |
| Melissa Taylor State 27 #1H42-109-32255 | Chesapeake Operating Inc. | Culberson, TXToyah NW (Shale) | PluggedGas | 14,200 | Aug 18, 2005 | — | — |
| JLB B #1HHZ42-439-31332 | Chesapeake Operating Inc. | Tarrant, TXNewark East (Barnett Shale) | PluggedGas | 10,500 | Aug 11, 2005 | — | — |
| Thompson #650242-341-32938 | Chesapeake Operating Inc. | Moore, TXPanhandle West (Red Cave North) | PluggedGas | 3,000 | Aug 9, 2005 | — | — |
| RMT #c 242-505-35328 | Chesapeake Operating Inc. | Zapata, TXZapata SE. (Wilcox) | PluggedGas | 13,000 | Jul 22, 2005 | — | — |
| Riverbend a #1HHZ42-439-31314 | Chesapeake Operating Inc. | Tarrant, TXNewark East (Barnett Shale) | PluggedGas | 10,500 | Jul 21, 2005 | — | — |
| Riverbend B #1HHZ42-439-31313 | Chesapeake Operating Inc. | Tarrant, TXNewark East (Barnett Shale) | PluggedGas | 10,500 | Jul 20, 2005 | — | — |
| Brown-Altman Acct. 4 -C- #5 U42-495-05616 | Chesapeake Operating Inc. | Winkler, TXEmperor (Devonian) | PluggedGas | 11,495 | Jul 12, 2005 | — | — |
| Jose Clemente Gutierrez a #242-505-35310 | Chesapeake Operating Inc. | Zapata, TXExsun (Lobo Cons.) | PluggedGas | 12,000 | Jun 27, 2005 | — | — |
| Parker #1HHZ42-251-30418 | Chesapeake Operating Inc. | Johnson, TXNewark East (Barnett Shale) | PluggedGas | 9,000 | May 26, 2005 | — | — |
| Stiles Ranch 5 #342-483-31884 | Chesapeake Operating Inc. | Wheeler, TXStiles Ranch (Granite Wash Cons) | PluggedGas | 16,000 | May 25, 2005 | — | — |
| Yellow Drake Woody B #2HHZ42-367-33714 | Chesapeake Operating Inc. | Parker, TXNewark East (Barnett Shale) | PluggedGas | 7,200 | May 5, 2005 | — | — |