| Zavisch -a- #a 842-311-33885 | GTG Operating LLC | McMullen, TXA.W.P. (Olmos) | ActiveOil | 10,322 | Jan 20, 2006 | — | — |
| Zavisch -a- #a 942-311-33886 | GTG Operating LLC | McMullen, TXA.W.P. (Olmos) | Shut inOil | 10,480 | Jan 20, 2006 | — | — |
| Chalk #842-227-10558 | GTG Operating LLC | Howard, TXHoward Glasscock (Consolidated) | ActiveInjection | 3,264 | Oct 28, 2005 | — | — |
| Blessing Unit No. 2 #242-321-32079 | GTG Operating LLC | Matagorda, TXPotthast (Middle Tex Miss) | ActiveGas | 11,300 | Sep 14, 2005 | — | — |
| Wheeler Lee #742-311-33843 | GTG Operating LLC | McMullen, TXA.W.P. (Olmos) | ActiveOil | 10,355 | Aug 19, 2005 | — | — |
| Blessing Unit No. 3 #142-321-32069 | GTG Operating LLC | Matagorda, TXPotthast (Middle Tex Miss) | ActiveGas | 12,400 | Aug 9, 2005 | — | — |
| Horton R P No. 18 #180242-311-33827 | GTG Operating LLC | McMullen, TXA.W.P. (Olmos) | Shut inOil | 9,663 | Jul 6, 2005 | — | — |
| Welder J. F. #b 542-409-03813 | GTG Operating LLC | San Patricio, TXOdem (3100) | PluggedGas | 5,810 | May 20, 2005 | — | — |
| Coke (Paluxy) Unit #150442-499-32031 | GTG Operating LLC | Wood, TXCoke | ActiveOil | 6,785 | May 20, 2005 | — | — |
| Horton R P No. 22 #220242-311-33796 | GTG Operating LLC | McMullen, TXA.W.P. (Olmos) | Shut inOil | 9,669 | Apr 1, 2005 | — | — |
| Coke (Paluxy) Unit #160742-499-32030 | GTG Operating LLC | Wood, TXCoke | ActiveOil | 6,650 | Mar 30, 2005 | — | — |
| Quintanilla -B- #b 142-311-33795 | GTG Operating LLC | McMullen, TXA.W.P. (Olmos) | ActiveOil | 9,674 | Mar 22, 2005 | — | — |
| Q-JCB-A #142-311-33765 | GTG Operating LLC | McMullen, TXA.W.P. (Olmos) | ActiveOil | 9,665 | Oct 19, 2004 | — | — |
| Horton R.P. -a- #a 442-311-33762 | GTG Operating LLC | McMullen, TXA.W.P. (Olmos) | ActiveOil | 9,450 | Oct 7, 2004 | — | — |
| Shannon J. M. -a- #12HZ42-105-00659 | GTG Operating LLC | Crockett, TXElkhorn (Ellenburger) | Shut inOil | 7,512 | Jul 29, 2004 | — | — |
| Shannon J. M. -a- #13HHZ42-105-00660 | GTG Operating LLC | Crockett, TXElkhorn (Ellenburger) | Shut inOil | 7,119 | Jul 9, 2004 | — | — |
| Blessing Unit #142-321-32016 | GTG Operating LLC | Matagorda, TXPotthast (Middle Tex Miss) | ActiveGas | 12,100 | Jun 22, 2004 | — | — |
| Shannon J. M. -a- #15HHZ42-105-00662 | GTG Operating LLC | Crockett, TXElkhorn (Ellenburger) | Shut inOil | 7,004 | Apr 30, 2004 | — | — |
| Shannon J. M. -a- #40HHZ42-105-38294 | GTG Operating LLC | Crockett, TXElkhorn (Ellenburger) | Shut inOil | 7,512 | Apr 7, 2004 | — | — |
| Zavisch -a- #742-311-33725 | GTG Operating LLC | McMullen, TXA.W.P. (Olmos) | ActiveOil | 10,470 | Dec 9, 2003 | — | — |
| Wheeler Lee #642-311-33722 | GTG Operating LLC | McMullen, TXA.W.P. (Olmos) | ActiveOil | 10,339 | Nov 6, 2003 | — | — |
| Wheeler Lee #542-311-33720 | GTG Operating LLC | McMullen, TXA.W.P. (Olmos) | ActiveOil | 10,380 | Nov 5, 2003 | — | — |
| Paloma-Horton Quintanilla #342-311-33707 | GTG Operating LLC | McMullen, TXA.W.P. (Olmos) | ActiveOil | 9,600 | Sep 30, 2003 | — | — |
| Horton - JCB #242-311-33706 | GTG Operating LLC | McMullen, TXA.W.P. (Olmos) | ActiveOil | 9,608 | Sep 22, 2003 | — | — |
| Coke (Paluxy) Unit #100242-499-32013 | GTG Operating LLC | Wood, TXCoke | ActiveOil | 6,604 | Jul 29, 2003 | — | — |
| Chalk #742-227-10557 | GTG Operating LLC | Howard, TXHoward Glasscock (Consolidated) | ActiveOil | 3,336 | Jan 23, 2003 | — | — |
| Chalk #542-227-10252 | GTG Operating LLC | Howard, TXHoward Glasscock (Consolidated) | ActiveOil | 3,250 | Nov 13, 2002 | — | — |
| Quintanilla - JCB #342-311-33674 | GTG Operating LLC | McMullen, TXA.W.P. (Olmos) | ActiveOil | 9,600 | Nov 13, 2002 | — | — |
| Quintanilla San Miguel #342-311-32569 | GTG Operating LLC | McMullen, TXA.W.P. (Olmos) | Shut inOil | 9,251 | Jun 27, 2002 | — | — |
| Paloma-Horton Quintanilla #142-311-33646 | GTG Operating LLC | McMullen, TXA.W.P. (Olmos) | ActiveOil | 9,575 | Mar 21, 2001 | — | — |
| Coke (Paluxy) Unit #1001R42-499-31965 | GTG Operating LLC | Wood, TXCoke | ActiveOil | 6,600 | Mar 16, 2001 | — | — |
| Horton -M- #642-311-33642 | GTG Operating LLC | McMullen, TXA.W.P. (Olmos) | ActiveOil | 9,238 | Feb 15, 2001 | — | — |
| Quintanilla - JCB #142-311-33630 | GTG Operating LLC | McMullen, TXA.W.P. (Olmos) | ActiveOil | 9,600 | Dec 21, 2000 | — | — |
| Coke (Paluxy) Unit #150342-499-31959 | GTG Operating LLC | Wood, TXCoke | ActiveOil | 6,600 | Oct 10, 2000 | — | — |
| Coke (Paluxy) Unit #0201R42-499-31960 | GTG Operating LLC | Wood, TXCoke | ActiveOil | 6,634 | Oct 10, 2000 | — | — |
| N. E. I. A. B. Unit #250442-081-31792 | GTG Operating LLC | Coke, TXI. A. B. NE. (Penn. 5150) | ActiveOil | 5,192 | Aug 24, 2000 | — | — |
| Coke (Paluxy) Unit #160642-499-31954 | GTG Operating LLC | Wood, TXCoke | ActiveOil | 6,600 | Jun 21, 2000 | — | — |
| Quintanilla San Miguel #142-311-33575 | GTG Operating LLC | McMullen, TXA.W.P. (Olmos) | ActiveOil | 9,300 | Mar 1, 2000 | — | — |
| Coke (Paluxy) Unit #0501R42-499-31942 | GTG Operating LLC | Wood, TXCoke | ActiveOil | 6,600 | Feb 15, 2000 | — | — |
| Coke (Paluxy) Unit #020642-499-31915 | GTG Operating LLC | Wood, TXCoke | ActiveOil | 6,600 | Apr 1, 1999 | — | — |
| Coke SWD #742-499-31914 | GTG Operating LLC | Wood, TXCoke | Shut inOil | 5,238 | Feb 23, 1999 | — | — |
| Coke SWD #642-499-31913 | GTG Operating LLC | Wood, TXCoke | Shut inOil | 5,220 | Jan 22, 1999 | — | — |
| Coke SWD #542-499-31900 | GTG Operating LLC | Wood, TXCoke | PluggedOil | 5,300 | Jul 27, 1998 | — | — |
| Welder J. F. B #1942-409-30324 | GTG Operating LLC | San Patricio, TXOdem (6100 UP) | PluggedOil | 7,130 | Oct 3, 1997 | — | — |
| Turner Gregory Unit #120542-335-33943 | GTG Operating LLC | Mitchell, TXTurner-Gregory (Clear Fork) | Shut inOil | 3,217 | May 1, 1997 | — | — |
| Turner Gregory Unit #130242-335-33941 | GTG Operating LLC | Mitchell, TXTurner-Gregory (Clear Fork) | ActiveOil | 3,210 | Mar 31, 1997 | — | — |
| Turner Gregory Unit #090742-335-33939 | GTG Operating LLC | Mitchell, TXTurner-Gregory (Clear Fork) | ActiveOil | 3,200 | Mar 28, 1997 | — | — |
| Turner Gregory Unit #290842-335-33911 | GTG Operating LLC | Mitchell, TXTurner-Gregory (Clear Fork) | ActiveOil | 3,232 | Jan 14, 1997 | — | — |
| Turner Gregory Unit #120442-335-33871 | GTG Operating LLC | Mitchell, TXTurner-Gregory (Clear Fork) | ActiveOil | 3,310 | Sep 18, 1996 | — | — |
| Turner Gregory Unit #231442-335-33867 | GTG Operating LLC | Mitchell, TXTurner-Gregory (Clear Fork) | PluggedOil | 3,200 | Sep 12, 1996 | — | — |