| Bell #142-439-30541 | Chesapeake Operating Inc. | Tarrant, TXNewark East (Barnett Shale) | PluggedGas | 9,000 | Dec 20, 2002 | — | — |
| Humphreys -33- #742-211-32640 | Chesapeake Operating Inc. | Hemphill, TXCanadian SE (Douglas) | PluggedGas | 7,450 | Sep 19, 2002 | — | — |
| Hancock Gas Unit #142-347-31760 | Chesapeake Operating Inc. | Nacogdoches, TXNaconiche Creek (Rod.-TP Cons.) | PluggedGas | 9,050 | Aug 30, 2002 | — | — |
| Jones Trust -26- #4A42-211-32634 | Chesapeake Operating Inc. | Hemphill, TXCanadian SE (Douglas) | PluggedGas | 9,500 | Aug 14, 2002 | — | — |
| Jones Trust -24- #4A42-211-32618 | Chesapeake Operating Inc. | Hemphill, TXCanadian SE (Douglas) | PluggedGas | 7,450 | Jul 15, 2002 | — | — |
| Mize Family #142-251-30117 | Chesapeake Operating Inc. | Johnson, TXCleburne (Barnett Shale) | PluggedGas | 10,700 | Jun 24, 2002 | — | — |
| Vela #242-505-34503 | Chesapeake Operating Inc. | Zapata, TXVolpe (6060) | PluggedGas | 11,000 | Mar 4, 2002 | — | — |
| Brock #150142-195-31461 | Chesapeake Operating Inc. | Hansford, TXHansford (White Dolomite) | PluggedGas | 4,000 | Feb 8, 2002 | — | — |
| Jones Trust -26- #2A42-211-32566 | Chesapeake Operating Inc. | Hemphill, TXCanadian SE (Douglas) | PluggedGas | 9,000 | Jan 7, 2002 | — | — |
| Vela #142-505-34445 | Chesapeake Operating Inc. | Zapata, TXEl Grullo (7780) | PluggedGas | 9,000 | Nov 1, 2001 | — | — |
| Coon R. S. #m 3542-341-32744 | Chesapeake Operating Inc. | Moore, TXPanhandle West (Red Cave North) | PluggedGas | 3,950 | Sep 17, 2001 | — | — |
| Bennett #b 142-251-30111 | Chesapeake Operating Inc. | Johnson, TXCleburne (Barnett Shale) | PluggedGas | 7,400 | Aug 16, 2001 | — | — |
| Colmer #a 142-251-30110 | Chesapeake Operating Inc. | Johnson, TXCleburne (Barnett Shale) | PluggedGas | 7,400 | Aug 10, 2001 | — | — |
| King-Mar Ltd. Gas Unit #142-215-32714 | Chesapeake Operating Inc. | Hidalgo, TXWildcat | PluggedGas | 17,000 | Jun 25, 2001 | — | — |
| Coon R. S. #m 24R42-341-01216 | Chesapeake Operating Inc. | Moore, TXPanhandle West (Red Cave North) | PluggedGas | 3,231 | May 21, 2001 | — | — |
| Parker Howard #142-349-31781 | Chesapeake Operating Inc. | Navarro, TXRound Prairie (Bossier) | PluggedGas | 12,500 | Apr 20, 2001 | — | — |
| Zamora-Vela #142-215-32825 | Chesapeake Operating Inc. | Hidalgo, TXPuerto Rico (Vicksburg) | PluggedGas | 10,300 | Nov 9, 2000 | — | — |
| Turner #142-033-31742 | Chesapeake Operating Inc. | Borden, TXWildcat | PluggedGas | 7,800 | May 12, 2000 | — | — |
| Cavazos #142-505-34098 | Chesapeake Operating Inc. | Zapata, TXEN Seguido (Wilcox) | PluggedGas | 16,000 | Mar 8, 2000 | — | — |
| Sorrell #142-481-34184 | Chesapeake Operating Inc. | Wharton, TXBalthrop (9000 Yegua) | PluggedGas | 9,400 | Jan 26, 2000 | — | — |
| Greever #142-357-30801 | Chesapeake Operating Inc. | Ochiltree, TXHansford (Morrow Upper) | PluggedGas | 7,950 | Sep 10, 1999 | — | — |
| Williams Creek #1HHZ42-015-30732 | Chesapeake Operating Inc. | Austin, TXGiddings (Austin Chalk Gas) | PluggedGas | 16,500 | Apr 19, 1999 | — | — |
| Callaghan Ranch #2442-479-30917 | Chesapeake Operating Inc. | Webb, TXFinley-Webb (Upper Cons) | PluggedGas | 6,650 | Mar 4, 1999 | — | — |
| Rogers O. C. -B- #342-357-00732 | Chesapeake Operating Inc. | Ochiltree, TXFarnsworth (Cleveland) | PluggedOil | 6,480 | Feb 25, 1999 | — | — |
| Alexander #30142-211-32318 | Chesapeake Operating Inc. | Hemphill, TXWashita Creek West (Atoka) | PluggedGas | 14,100 | Oct 15, 1998 | — | — |
| Rust #142-481-34081 | Chesapeake Operating Inc. | Wharton, TXWildcat | PluggedGas | 9,400 | Oct 7, 1998 | — | — |
| Hardie Elizabeth K. #1842-057-31325 | Chesapeake Operating Inc. | Calhoun, TXOlivia East (7550) | PluggedGas | 8,800 | May 28, 1998 | — | — |
| Shelton 26 #142-483-31531 | Chesapeake Operating Inc. | Wheeler, TXAllison Parks (Morrow Up.) | PluggedGas | 16,500 | Feb 24, 1998 | — | — |
| Smith R.V. Estate Unit #10LHZ42-149-33076 | Chesapeake Operating Inc. | Fayette, TXGiddings (Austin Chalk-3) | PluggedOil | 14,500 | Dec 23, 1997 | — | — |
| Culpepper a #1HHZ42-177-31897 | Chesapeake Operating Inc. | Gonzales, TXFirst Shot (Austin Chalk) | PluggedOil | 12,800 | Dec 4, 1997 | — | — |
| Jennings Ranch #542-505-32054 | Chesapeake Operating Inc. | Zapata, TXJennings Ranch (Lobo Cons.) | PluggedGas | 13,500 | Sep 11, 1997 | — | — |
| Jennings Ranch #742-505-32109 | Chesapeake Operating Inc. | Zapata, TXJennings Ranch (Lobo Cons.) | PluggedGas | 13,900 | Sep 10, 1997 | — | — |
| Halley S.M. B #2542-495-05395 | Chesapeake Operating Inc. | Winkler, TXEmperor (Wolfcamp) | PluggedOil | 8,942 | Jul 24, 1997 | — | — |
| Woody #a 142-367-33327 | Chesapeake Operating Inc. | Parker, TXDicey (Conglomerate) | PluggedGas | 7,000 | Jun 30, 1997 | — | — |
| Bensch #199242-295-32373 | Chesapeake Operating Inc. | Lipscomb, TXLoesch (Morrow Upper) | PluggedGas | 9,600 | Jun 12, 1997 | — | — |
| Alexander M. M. #742-505-33607 | Chesapeake Operating Inc. | Zapata, TXRoleta (Wilcox Consolidated) | PluggedGas | 10,500 | May 14, 1997 | — | — |
| Gwyn #1HHZ42-185-30620 | Chesapeake Operating Inc. | Grimes, TXGiddings (Austin Chalk-3) | PluggedOil | 16,500 | May 2, 1997 | — | — |
| Airport #1HHZ42-185-30616 | Chesapeake Operating Inc. | Grimes, TXGiddings (Austin Chalk Gas) | PluggedGas | 16,500 | Apr 14, 1997 | — | — |
| Vastar a-236 #1HHZ42-351-30678 | Chesapeake Operating Inc. | Newton, TXBrookeland (Austin Chalk 8800) | PluggedGas | 15,077 | Apr 14, 1997 | — | — |
| Wackman OL #1HHZ42-477-30845 | Chesapeake Operating Inc. | Washington, TXGiddings (Austin Chalk Gas) | PluggedGas | 20,230 | Apr 1, 1997 | — | — |
| Mast A. T. B Gas Unit #142-347-31369 | Chesapeake Operating Inc. | Nacogdoches, TXNaconiche Creek (Rod.-TP Cons.) | PluggedGas | 10,800 | Feb 28, 1997 | — | — |
| Bosse #1HHZ42-477-30841 | Chesapeake Operating Inc. | Washington, TXGiddings (Austin Chalk Gas) | PluggedGas | 15,700 | Jan 28, 1997 | — | — |
| Travis George E. a #242-295-32341 | Chesapeake Operating Inc. | Lipscomb, TXStuart Ranch (Morrow Middle) | PluggedGas | 9,300 | Dec 31, 1996 | — | — |
| Jahnel #142-211-31288 | Chesapeake Operating Inc. | Hemphill, TXGem-Hemphill (Morrow Upper) | PluggedGas | 13,400 | Nov 8, 1996 | — | — |
| De Tijerina H. C. #1542-249-03245 | Chesapeake Operating Inc. | Jim Wells, TXT.-C.-B. (Upper Frio Cons.) | PluggedGas | 7,145 | Aug 14, 1996 | — | — |
| Oliver #1HHZ42-185-30579 | Chesapeake Operating Inc. | Grimes, TXGiddings (Austin Chalk Gas) | PluggedGas | 17,500 | May 30, 1996 | — | — |
| Sontag #1HHZ42-185-30520 | Chesapeake Operating Inc. | Grimes, TXGiddings (Austin Chalk Gas) | PluggedGas | 16,500 | Feb 13, 1996 | — | — |
| Shell Fee 25 #102542-211-32147 | Chesapeake Operating Inc. | Hemphill, TXAntero (Upper Morrow D) | PluggedGas | 13,000 | Feb 8, 1996 | — | — |
| State of Texas #1Q42-475-34320 | Chesapeake Operating Inc. | Ward, TXWard-Estes North | PluggedOil | 4,000 | Nov 29, 1995 | — | — |
| Reznik #142-341-32442 | Chesapeake Operating Inc. | Moore, TXPanhandle Moore County Field | PluggedOil | 3,650 | Nov 17, 1995 | — | — |