| Park SU #1 HHZ42-405-30442 | Exco Operating Company LP | San Augustine, TXCarthage (Haynesville Shale) | ActiveGas | 13,506 | Apr 21, 2011 | — | — |
| Thomas Unit #1HHZ42-507-32786 | Exco Operating Company LP | Zavala, TXBriscoe Ranch (Eagleford) | ActiveOil | 6,315 | Apr 12, 2011 | — | — |
| Stedham SU #2 HHZ42-405-30433 | Exco Operating Company LP | San Augustine, TXCarthage (Haynesville Shale) | ActiveGas | 13,279 | Apr 5, 2011 | — | — |
| Blackmon Unit #1HHZ42-507-32785 | Exco Operating Company LP | Zavala, TXBriscoe Ranch (Eagleford) | ActiveOil | 6,380 | Apr 5, 2011 | — | — |
| Gomez SU B #1HHZ42-347-33231 | Exco Operating Company LP | Nacogdoches, TXCarthage (Haynesville Shale) | ActiveGas | 14,660 | Mar 25, 2011 | — | — |
| York SU #1 HHZ42-405-30427 | Exco Operating Company LP | San Augustine, TXCarthage (Haynesville Shale) | ActiveGas | 13,474 | Mar 21, 2011 | — | — |
| Avant #d 1HPHZ42-283-32564 | Exco Operating Company LP | La Salle, TXIndio Tanks (Pearsall) | ActiveGas | 11,683 | Mar 17, 2011 | — | — |
| Pena Creek III Unit E #1HHZ42-127-33922 | Exco Operating Company LP | Dimmit, TXBriscoe Ranch (Eagleford) | ActiveOil | 6,195 | Mar 15, 2011 | — | — |
| Allee Unit E #1HHZ42-127-33915 | Exco Operating Company LP | Dimmit, TXBriscoe Ranch (Eagleford) | ActiveOil | 6,710 | Mar 8, 2011 | — | — |
| Walker SU G #1HHZ42-347-33226 | Exco Operating Company LP | Nacogdoches, TXCarthage (Haynesville Shale) | ActiveGas | 14,607 | Mar 4, 2011 | — | — |
| Ward SU #1HHZ42-405-30404 | Exco Operating Company LP | San Augustine, TXCarthage (Haynesville Shale) | ActiveGas | 13,300 | Feb 24, 2011 | — | — |
| Weeks SU #1HHZ42-405-30421 | Exco Operating Company LP | San Augustine, TXCarthage (Haynesville Shale) | ActiveGas | 13,303 | Feb 23, 2011 | — | — |
| Holloway SU #2HHZ42-405-30413 | Exco Operating Company LP | San Augustine, TXCarthage (Haynesville Shale) | ActiveGas | 13,316 | Feb 9, 2011 | — | — |
| Allee Unit B #1HHZ42-127-33887 | Exco Operating Company LP | Dimmit, TXBriscoe Ranch (Eagleford) | ActiveOil | 6,784 | Feb 7, 2011 | — | — |
| Walker SU E #1HHZ42-347-33209 | Exco Operating Company LP | Nacogdoches, TXCarthage (Haynesville Shale) | ActiveGas | 14,610 | Jan 28, 2011 | — | — |
| Greer SU #1HHZ42-405-30403 | Exco Operating Company LP | San Augustine, TXCarthage (Haynesville Shale) | ActiveGas | 13,299 | Jan 28, 2011 | — | — |
| Phillips SU #1HHZ42-405-30396 | Exco Operating Company LP | San Augustine, TXCarthage (Haynesville Shale) | ActiveGas | 13,074 | Jan 24, 2011 | — | — |
| Walker SU D #1HHZ42-347-33214 | Exco Operating Company LP | Nacogdoches, TXCarthage (Haynesville Shale) | ActiveGas | 14,447 | Jan 18, 2011 | — | — |
| Walker SU F #1HHZ42-347-33215 | Exco Operating Company LP | Nacogdoches, TXCarthage (Haynesville Shale) | ActiveGas | 14,525 | Jan 18, 2011 | — | — |
| Whitecotton Unit a #1HHZ42-127-33860 | Exco Operating Company LP | Dimmit, TXBriscoe Ranch (Eagleford) | Shut inOil | 6,395 | Jan 11, 2011 | — | — |
| Verheul B #1HHZ42-507-32773 | Exco Operating Company LP | Zavala, TXBriscoe Ranch (Eagleford) | ActiveOil | 6,667 | Jan 10, 2011 | — | — |
| Davis SU #1HHZ42-405-30406 | Exco Operating Company LP | San Augustine, TXCarthage (Haynesville Shale) | ActiveGas | 13,249 | Jan 7, 2011 | — | — |
| Pena Creek III Unit C #3HHZ42-127-33851 | Exco Operating Company LP | Dimmit, TXBriscoe Ranch (Eagleford) | ActiveOil | 6,153 | Dec 30, 2010 | — | — |
| Woodward a #1HHZ42-507-32772 | Exco Operating Company LP | Zavala, TXBriscoe Ranch (Eagleford) | ActiveOil | 6,223 | Dec 28, 2010 | — | — |
| Red River 257 B #2HHZ42-405-30402 | Exco Operating Company LP | San Augustine, TXCarthage (Haynesville Shale) | ActiveGas | 12,693 | Dec 23, 2010 | — | — |
| Allee Unit a #1HHZ42-127-33832 | Exco Operating Company LP | Dimmit, TXBriscoe Ranch (Eagleford) | ActiveOil | 6,795 | Dec 10, 2010 | — | — |
| Allee Unit D #1HHZ42-127-33831 | Exco Operating Company LP | Dimmit, TXBriscoe Ranch (Eagleford) | ActiveOil | 6,717 | Dec 9, 2010 | — | — |
| Brent Miller A1 #1HHZ42-347-33204 | Exco Operating Company LP | Nacogdoches, TXCarthage (Haynesville Shale) | ActiveGas | 13,989 | Dec 8, 2010 | — | — |
| Gomez SU a #1HHZ42-347-33200 | Exco Operating Company LP | Nacogdoches, TXCarthage (Haynesville Shale) | ActiveGas | 14,653 | Nov 24, 2010 | — | — |
| Verheul Unit a #1HHZ42-507-32768 | Exco Operating Company LP | Zavala, TXBriscoe Ranch (Eagleford) | ActiveOil | 6,578 | Nov 24, 2010 | — | — |
| Patterson SU #1HHZ42-405-30391 | Exco Operating Company LP | San Augustine, TXCarthage (Haynesville Shale) | ActiveGas | 13,305 | Nov 9, 2010 | — | — |
| Pistol Unit #1HHZ42-127-33808 | Exco Operating Company LP | Dimmit, TXBriscoe Ranch (Eagleford) | PluggedOil | 9,000 | Nov 8, 2010 | — | — |
| Pena Creek I #5HHZ42-127-33803 | Exco Operating Company LP | Dimmit, TXBriscoe Ranch (Eagleford) | ActiveOil | 5,777 | Nov 4, 2010 | — | — |
| Circle T Unit a #1HHZ42-127-33796 | Exco Operating Company LP | Dimmit, TXEagleville (Eagle Ford-1) | Shut inOil | 6,538 | Oct 25, 2010 | — | — |
| Circle T Ranch Unit a #1HHZ42-127-33795 | Exco Operating Company LP | Dimmit, TXBriscoe Ranch (Eagleford) | Shut inOil | 6,388 | Oct 22, 2010 | — | — |
| Dillard SU #1HHZ42-405-30389 | Exco Operating Company LP | San Augustine, TXCarthage (Haynesville Shale) | ActiveGas | 13,106 | Oct 15, 2010 | — | — |
| Ironosa SU #1HHZ42-405-30375 | Exco Operating Company LP | San Augustine, TXCarthage (Haynesville Shale) | ActiveGas | 13,043 | Oct 14, 2010 | — | — |
| Thalmann #1HHZ42-127-33764 | Exco Operating Company LP | Dimmit, TXBriscoe Ranch (Eagleford) | ActiveOil | 6,359 | Sep 22, 2010 | — | — |
| Walker SU a #1 HHZ42-347-33185 | Exco Operating Company LP | Nacogdoches, TXCarthage (Haynesville Shale) | ActiveGas | 14,670 | Sep 21, 2010 | — | — |
| Rebels SU #1HHZ42-419-31626 | Exco Operating Company LP | Shelby, TXCarthage (Haynesville Shale) | ActiveGas | 12,729 | Sep 15, 2010 | — | — |
| Smith SU #1HHZ42-405-30382 | Exco Operating Company LP | San Augustine, TXCarthage (Haynesville Shale) | ActiveGas | 12,908 | Sep 9, 2010 | — | — |
| Betty Wilson #1HHZ42-127-33746 | Exco Operating Company LP | Dimmit, TXBriscoe Ranch (Eagleford) | ActiveOil | 6,565 | Aug 31, 2010 | — | — |
| Traylor North #2HHZ42-507-32760 | Exco Operating Company LP | Zavala, TXBriscoe Ranch (Eagleford) | ActiveOil | 5,844 | Aug 24, 2010 | — | — |
| Stedham SU #1 HHZ42-405-30371 | Exco Operating Company LP | San Augustine, TXCarthage (Haynesville Shale) | ActiveObservation | 13,320 | Aug 20, 2010 | — | — |
| Holloway SU #1HBHZ42-405-30372 | Exco Operating Company LP | San Augustine, TXCarthage (Haynesville Shale) | ActiveGas | 12,927 | Aug 20, 2010 | — | — |
| Wood SU #1 HHZ42-405-30373 | Exco Operating Company LP | San Augustine, TXCarthage (Haynesville Shale) | ActiveGas | 13,300 | Aug 20, 2010 | — | — |
| Pena Creek III Unit B #4HHZ42-127-33732 | Exco Operating Company LP | Dimmit, TXIndio Tanks (Pearsall) | Temporarily abandonedGas | 9,489 | Aug 9, 2010 | — | — |
| Cameron Minerals SU #1 HHZ42-347-33179 | Exco Operating Company LP | Nacogdoches, TXCarthage (Haynesville Shale) | ActiveGas | 13,909 | Aug 2, 2010 | — | — |
| Pena Creek I #4HHZ42-127-33715 | Exco Operating Company LP | Dimmit, TXBriscoe Ranch (Eagleford) | ActiveOil | 5,871 | Jul 15, 2010 | — | — |
| Pena Creek I #6HHZ42-127-33716 | Exco Operating Company LP | Dimmit, TXBriscoe Ranch (Eagleford) | ActiveOil | 5,707 | Jul 14, 2010 | — | — |