| Windham 40 #342-329-34509 | Discovery Operating Inc. | Midland, TXSpraberry (Trend Area) | PluggedOil | 10,600 | Feb 22, 2001 | — | — |
| Windham 40 #442-329-34506 | Discovery Operating Inc. | Midland, TXSpraberry (Trend Area) | PluggedOil | 10,600 | Feb 16, 2001 | — | — |
| Barrow 36 #1SW42-329-13822 | Discovery Operating Inc. | Midland, TXSpraberry (Trend Area) | ActiveInjection | 13,382 | Jan 29, 2001 | — | — |
| Windham 42 #242-329-34482 | Discovery Operating Inc. | Midland, TXSpraberry (Trend Area) | ActiveOil | 10,077 | Jan 23, 2001 | — | — |
| Roach B #442-413-32110 | Discovery Operating Inc. | Schleicher, TXVelrex (Henderson Upper) | PluggedGas | 7,200 | Jan 17, 2001 | — | — |
| Fifty - One #342-413-32111 | Discovery Operating Inc. | Schleicher, TXVelrex (Henderson Upper) | ActiveOil | 6,782 | Jan 17, 2001 | — | — |
| Windham 42 #142-329-34476 | Discovery Operating Inc. | Midland, TXSpraberry (Trend Area) | PluggedOil | 10,600 | Jan 12, 2001 | — | — |
| Windham 40 #142-329-34456 | Discovery Operating Inc. | Midland, TXSpraberry (Trend Area) | ActiveOil | 10,055 | Dec 13, 2000 | — | — |
| Ruth #442-413-32105 | Discovery Operating Inc. | Schleicher, TXW.J.S. (Canyon) | ActiveOil | 6,921 | Dec 13, 2000 | — | — |
| Lin AY #242-413-32104 | Discovery Operating Inc. | Schleicher, TXW.O.D. (Canyon) | ActiveGas | 7,130 | Nov 30, 2000 | — | — |
| Windham 40 #242-329-34445 | Discovery Operating Inc. | Midland, TXSpraberry (Trend Area) | ActiveOil | 10,057 | Nov 29, 2000 | — | — |
| Windham 38 #242-329-34392 | Discovery Operating Inc. | Midland, TXSpraberry (Trend Area) | PluggedOil | 10,600 | Oct 18, 2000 | — | — |
| University 11A #642-003-38676 | Discovery Operating Inc. | Andrews, TXMartin (Consolidated) | ActiveOil | 7,757 | Sep 12, 2000 | — | — |
| Txlv 43 #342-329-34364 | Discovery Operating Inc. | Midland, TXSpraberry (Trend Area) | PluggedOil | 10,600 | Sep 12, 2000 | — | — |
| Txlv 43 #442-329-34365 | Discovery Operating Inc. | Midland, TXSpraberry (Trend Area) | ActiveOil | 10,150 | Sep 12, 2000 | — | — |
| University 11A #542-003-38675 | Discovery Operating Inc. | Andrews, TXMartin (Consolidated) | ActiveOil | 7,506 | Aug 30, 2000 | — | — |
| Txlv 43 #242-329-34353 | Discovery Operating Inc. | Midland, TXSpraberry (Trend Area) | PluggedOil | 10,600 | Aug 30, 2000 | — | — |
| Windham 38 #142-329-34347 | Discovery Operating Inc. | Midland, TXSpraberry (Trend Area) | PluggedOil | 10,600 | Aug 15, 2000 | — | — |
| University 11 #742-003-38647 | Discovery Operating Inc. | Andrews, TXMartin (Consolidated) | ActiveOil | 7,739 | Jun 23, 2000 | — | — |
| TXL-V 39 #442-329-34320 | Discovery Operating Inc. | Midland, TXSpraberry (Trend Area) | PluggedOil | 10,600 | Jun 20, 2000 | — | — |
| TXL-V 39 #342-329-34321 | Discovery Operating Inc. | Midland, TXSpraberry (Trend Area) | ActiveOil | 10,130 | Jun 20, 2000 | — | — |
| TXL-V 39 #242-329-34322 | Discovery Operating Inc. | Midland, TXSpraberry (Trend Area) | ActiveOil | 10,075 | Jun 20, 2000 | — | — |
| University 11A #442-003-38643 | Discovery Operating Inc. | Andrews, TXMartin (Consolidated) | ActiveOil | 7,506 | Jun 13, 2000 | — | — |
| TXL-V 39 #142-329-34313 | Discovery Operating Inc. | Midland, TXSpraberry (Trend Area) | ActiveOil | 10,296 | May 31, 2000 | — | — |
| Glowbug #242-461-34035 | Discovery Operating Inc. | Upton, TXDai (Wolfcamp) | PluggedOil | 10,600 | Mar 30, 2000 | — | — |
| University 11 #642-003-38545 | Discovery Operating Inc. | Andrews, TXMartin (Consolidated) | ActiveOil | 7,730 | Oct 18, 1999 | — | — |
| University 11 #542-003-38546 | Discovery Operating Inc. | Andrews, TXMartin (Consolidated) | ActiveOil | 7,713 | Oct 18, 1999 | — | — |
| University 11A #342-003-38543 | Discovery Operating Inc. | Andrews, TXMartin (Consolidated) | ActiveOil | 7,718 | Oct 13, 1999 | — | — |
| Hemphill #142-413-32067 | Discovery Operating Inc. | Schleicher, TXDove Creek (Canyon -D-) | PluggedOil | 7,000 | Aug 5, 1999 | — | — |
| Ruth #342-413-32068 | Discovery Operating Inc. | Schleicher, TXW.J.S. (Canyon) | ActiveOil | 6,907 | Aug 4, 1999 | — | — |
| Lin H #242-413-32065 | Discovery Operating Inc. | Schleicher, TXW.O.D. (Canyon) | ActiveGas | 7,095 | Jun 22, 1999 | — | — |
| Roach B #342-413-32063 | Discovery Operating Inc. | Schleicher, TXKathie (Canyon) | PluggedGas | 7,100 | Jun 16, 1999 | — | — |
| University 11A #2X42-003-38491 | Discovery Operating Inc. | Andrews, TXMartin (Consolidated) | PluggedOil | 8,200 | Jun 9, 1999 | — | — |
| Andrews 1115 #342-003-38479 | Discovery Operating Inc. | Andrews, TXMartin (Consolidated) | ActiveInjection | 7,669 | Apr 22, 1999 | — | — |
| University 11 #342-003-38480 | Discovery Operating Inc. | Andrews, TXMartin (Consolidated) | ActiveOil | 7,689 | Apr 22, 1999 | — | — |
| University 11 #442-003-38481 | Discovery Operating Inc. | Andrews, TXMartin (Consolidated) | ActiveOil | 7,715 | Apr 22, 1999 | — | — |
| Firefly B #142-461-33966 | Discovery Operating Inc. | Upton, TXSpraberry (Trend Area) | ActiveOil | 10,225 | Dec 28, 1998 | — | — |
| Firefly a #142-461-33928 | Discovery Operating Inc. | Upton, TXSpraberry (Trend Area) | PluggedOil | 10,500 | Mar 26, 1998 | — | — |
| Lucile Boothe -B- Unit #142-421-00937 | Discovery Operating Inc. | Sherman, TXTexas Hugoton (Red Cave) | PluggedGas | 3,340 | Aug 29, 1997 | — | — |
| University 11 #142-003-32232 | Discovery Operating Inc. | Andrews, TXMartin (Consolidated) | ActiveOil | 8,340 | Aug 19, 1997 | — | — |
| Firefly #142-461-33831 | Discovery Operating Inc. | Upton, TXDai (Wolfcamp) | PluggedOil | 11,300 | Aug 14, 1997 | — | — |
| University 11A #242-003-38236 | Discovery Operating Inc. | Andrews, TXBlock 11 (Wichita LO) | PluggedOil | 8,200 | Jun 23, 1997 | — | — |
| Andrews 1115 #242-003-38211 | Discovery Operating Inc. | Andrews, TXMartin (Consolidated) | PluggedOil | 8,200 | May 20, 1997 | — | — |
| Henderson R. L. D #1Y42-413-31993 | Discovery Operating Inc. | Schleicher, TXVelrex (Canyon Sand) | PluggedGas | 7,500 | Apr 29, 1997 | — | — |
| O Loughlin Jr. a #142-195-31286 | Discovery Operating Inc. | Hansford, TXTwin (Tonkawa) | PluggedGas | 7,500 | Mar 6, 1997 | — | — |
| O Loughlin Sr. Trust #542-195-31284 | Discovery Operating Inc. | Hansford, TXSpearman East (Atoka) | PluggedGas | 8,500 | Feb 20, 1997 | — | — |
| University 11 #242-003-38097 | Discovery Operating Inc. | Andrews, TXMartin (Consolidated) | ActiveOil | 7,695 | Dec 4, 1996 | — | — |
| Case a #142-413-31974 | Discovery Operating Inc. | Schleicher, TXCody Bell (Canyon) | PluggedGas | 7,200 | Jun 19, 1996 | — | — |
| Fifty One #242-413-31971 | Discovery Operating Inc. | Schleicher, TXVelrex (Henderson Upper) | PluggedGas | 7,100 | Jun 13, 1996 | — | — |
| Bar a #142-413-31973 | Discovery Operating Inc. | Schleicher, TXGwyn (Canyon) | ActiveOil | 6,757 | Jun 3, 1996 | — | — |