| Martindale-McGraw Unit a-33 #1HZ42-241-30637 | Enervest Operating L.L.C. | Jasper, TXBrookeland (Austin Chalk 8800) | PluggedGas | 12,200 | Jul 27, 2006 | — | — |
| Gean Jim Unit #2HHZ42-439-31651 | Enervest Operating L.L.C. | Tarrant, TXNewark East (Barnett Shale) | PluggedGas | 9,000 | Jun 14, 2006 | — | — |
| Gean Jim Unit #3HHZ42-439-31655 | Enervest Operating L.L.C. | Tarrant, TXNewark East (Barnett Shale) | PluggedGas | 9,000 | Jun 14, 2006 | — | — |
| Gean Jim Unit #1HHZ42-439-31659 | Enervest Operating L.L.C. | Tarrant, TXNewark East (Barnett Shale) | PluggedGas | 9,000 | Jun 14, 2006 | — | — |
| Black J.R. 50 #142-483-31381 | Enervest Operating L.L.C. | Wheeler, TXWheeler Ne.(k.c.) | PluggedOil | 12,500 | May 16, 2006 | — | — |
| Wright Joe Unit #1HHZ42-439-31580 | Enervest Operating L.L.C. | Tarrant, TXNewark East (Barnett Shale) | PluggedGas | 9,000 | Apr 11, 2006 | — | — |
| Edwards #b 142-367-33455 | Enervest Operating L.L.C. | Parker, TXNewark East (Barnett Shale) | PluggedGas | 7,500 | Feb 16, 2006 | — | — |
| Crowley 272 JV #1HHZ42-439-31486 | Enervest Operating L.L.C. | Tarrant, TXNewark East (Barnett Shale) | PluggedGas | 9,000 | Jan 23, 2006 | — | — |
| Willow Park Ranch #1HHZ42-367-33851 | Enervest Operating L.L.C. | Parker, TXNewark East (Barnett Shale) | PluggedGas | 9,000 | Dec 14, 2005 | — | — |
| Gibson-Perrigo Unit Record Well #2SLHZ42-439-31394 | Enervest Operating L.L.C. | Tarrant, TXNewark East (Barnett Shale) | PluggedGas | 9,000 | Nov 1, 2005 | — | — |
| Keyser W. B. #1REHZ42-041-31742 | Enervest Operating L.L.C. | Brazos, TXNavasota River (Cretaceous Lwr.) | PluggedGas | 17,000 | Oct 19, 2005 | — | — |
| 247 Land Co. #1HZ42-313-30743 | Enervest Operating L.L.C. | Madison, TXFort Trinidad East (Buda) | PluggedOil | 14,697 | Aug 29, 2005 | — | — |
| Prater #601042-211-33367 | Enervest Operating L.L.C. | Hemphill, TXBuffalo Wallow (Granite Wash) | PluggedGas | 13,150 | Jul 19, 2005 | — | — |
| Yegua-Schawe Unit #1HZ42-051-33392 | Enervest Operating L.L.C. | Burleson, TXClay NE (Austin Chalk 11350) | PluggedGas | 11,500 | Mar 23, 2005 | — | — |
| Smartt, L.E. #242-335-34500 | Enervest Operating, L.L.C. | Mitchell, TXWestbrook (Clear Fork, Upper) | Not on schedule | 3,400 | Mar 23, 2005 | — | — |
| O. Handley 1 #942-335-34501 | Enervest Operating, L.L.C. | Mitchell, TXWestbrook (Clear Fork, Upper) | Not on schedule | 3,400 | Mar 23, 2005 | — | — |
| Pettitfils "B" #1142-335-34502 | Enervest Operating, L.L.C. | Mitchell, TXWestbrook (Clear Fork, Upper) | Not on schedule | 3,400 | Mar 23, 2005 | — | — |
| E.T. Strain "C" #1342-335-34503 | Enervest Operating, L.L.C. | Mitchell, TXWestbrook (Clear Fork, Upper) | Not on schedule | 3,400 | Mar 23, 2005 | — | — |
| Clark, J.W. #1542-335-34504 | Enervest Operating, L.L.C. | Mitchell, TXWestbrook (Clear Fork, Upper) | Not on schedule | 3,400 | Mar 23, 2005 | — | — |
| Bond (60027) #2A42-317-34522 | Enervest Operating, L.L.C. | Martin, TXAckerly (Dean Sand) | Not on schedule | 9,000 | Mar 1, 2005 | — | — |
| Barber #242-317-34523 | Enervest Operating, L.L.C. | Martin, TXAckerly (Dean Sand) | Not on schedule | 9,000 | Feb 25, 2005 | — | — |
| Yegua-Porter Unit #1REHZ42-051-33406 | Enervest Operating L.L.C. | Burleson, TXGiddings (Austin Chalk-3) | PluggedOil | 11,800 | Feb 10, 2005 | — | — |
| Shepard, Bonnie #242-317-34524 | Enervest Operating, L.L.C. | Martin, TXAckerly (Dean Sand) | Not on schedule | 9,000 | Feb 1, 2005 | — | — |
| Nelson #1 HHZ42-439-31117 | Enervest Operating L.L.C. | Tarrant, TXNewark East (Barnett Shale) | PluggedGas | 8,000 | Jan 25, 2005 | — | — |
| Canyon Ranch 114 #12 S42-435-37223 | Enervest Operating L.L.C. | Sutton, TXSawyer (Canyon) | PluggedGas | 6,950 | Dec 20, 2004 | — | — |
| Canyon Ranch 114 #11S42-435-37227 | Enervest Operating L.L.C. | Sutton, TXSawyer (Canyon) | PluggedGas | 6,900 | Dec 20, 2004 | — | — |
| Beall #1 HHZ42-367-33634 | Enervest Operating L.L.C. | Parker, TXNewark East (Barnett Shale) | PluggedGas | 8,000 | Dec 17, 2004 | — | — |
| Lohberger #442-483-30583 | Enervest Operating L.L.C. | Wheeler, TXDyco (Granite Wash) | PluggedGas | 15,000 | Oct 26, 2004 | — | — |
| Gibson-Perrigo Unit (Companion) #1HHZ42-439-30883 | Enervest Operating L.L.C. | Tarrant, TXNewark East (Barnett Shale) | PluggedGas | 7,600 | Jun 30, 2004 | — | — |
| Prater #201042-211-33002 | Enervest Operating L.L.C. | Hemphill, TXBuffalo Wallow (Granite Wash) | PluggedGas | 12,350 | Jun 8, 2004 | — | — |
| Mittel Ben #542-435-36845 | Enervest Operating L.L.C. | Sutton, TXSonora (Canyon Upper) | PluggedGas | 6,700 | Apr 28, 2004 | — | — |
| Stranger T. Unit #3HZ42-287-31299 | Enervest Operating L.L.C. | Lee, TXGiddings (Austin Chalk Gas) | PluggedGas | 11,700 | Jan 8, 2004 | — | — |
| Sauder Jay #1HZ42-497-35452 | Enervest Operating L.L.C. | Wise, TXNewark East (Barnett Shale) | PluggedGas | 8,400 | Nov 18, 2003 | — | — |
| Bing Unit #1REHZ42-149-31481 | Enervest Operating L.L.C. | Fayette, TXGiddings (Austin Chalk-3) | PluggedOil | 15,000 | Oct 8, 2003 | — | — |
| Sauder Alane #3HZ42-497-35390 | Enervest Operating L.L.C. | Wise, TXNewark East (Barnett Shale) | PluggedGas | 8,400 | Sep 10, 2003 | — | — |
| Carter Unit #242-497-35357 | Enervest Operating L.L.C. | Wise, TXNewark East (Barnett Shale) | PluggedGas | 8,800 | Aug 6, 2003 | — | — |
| Edgmon-Cameron Unit #5HHZ42-287-31105 | Enervest Operating L.L.C. | Lee, TXGiddings (Austin Chalk-3) | PluggedOil | 9,300 | Jun 17, 2003 | — | — |
| Carter Unit #342-497-35245 | Enervest Operating L.L.C. | Wise, TXNewark East (Barnett Shale) | PluggedGas | 8,800 | Apr 11, 2003 | — | — |
| Rotello #1HHZ42-041-31833 | Enervest Operating L.L.C. | Brazos, TXNavasota River (Cretaceous Lwr.) | PluggedGas | 16,150 | Feb 5, 2003 | — | — |
| Lindsley A771 #142-097-33605 | Enervest Operating L.L.C. | Cooke, TXSt. JO Ridge (Barnett Shale) | PluggedGas | 9,000 | Dec 30, 2002 | — | — |
| Meckel a #5642-435-36103 | Enervest Operating L.L.C. | Sutton, TXSonora (Canyon Upper) | PluggedGas | 6,300 | Nov 26, 2002 | — | — |
| Ridge Judah #2HZ42-439-30522 | Enervest Operating L.L.C. | Tarrant, TXNewark East (Barnett Shale) | PluggedGas | 9,800 | Nov 26, 2002 | — | — |
| Jones-Neeley #142-121-31726 | Enervest Operating L.L.C. | Denton, TXNewark East (Barnett Shale) | PluggedGas | 9,500 | Nov 12, 2002 | — | — |
| Davis C #3642-435-35997 | Enervest Operating L.L.C. | Sutton, TXSonora (Canyon Upper) | PluggedGas | 6,425 | Aug 27, 2002 | — | — |
| Canyon Ranch #1103E42-137-31632 | Enervest Operating L.L.C. | Edwards, TXFrances Hill (Penn) | PluggedGas | 6,500 | Jul 16, 2002 | — | — |
| Canyon Ranch #1124E42-137-31634 | Enervest Operating L.L.C. | Edwards, TXJack Rabbit (Holman) | PluggedGas | 7,200 | Jul 16, 2002 | — | — |
| Allison 54 #742-435-35944 | Enervest Operating L.L.C. | Sutton, TXSawyer (Canyon) | PluggedGas | 6,200 | Jul 8, 2002 | — | — |
| Texas Properties #142-121-31570 | Enervest Operating L.L.C. | Denton, TXNewark East (Barnett Shale) | PluggedGas | 8,300 | Jun 14, 2002 | — | — |
| N. Hilton Unit a-350 #1HZ42-241-30673 | Enervest Operating L.L.C. | Jasper, TXBrookeland (Austin Chalk 8800) | PluggedGas | 13,200 | May 31, 2002 | — | — |
| Browder Dearing #a 142-367-33420 | Enervest Operating L.L.C. | Parker, TXNewark East (Barnett Shale) | PluggedGas | 7,500 | May 31, 2002 | — | — |