| 517163 | Jan 30, 2002 | Jan 30, 2002 | Conoco Inc. | Roscher-Hirsch G.U. #7 | 8,400 | 47938038 |
| 517133 | Jan 30, 2002 | Jan 30, 2002 | Crimson Energy Company, LC | Briscoe "E" #118 | 6,100 | 47938039 |
| 517133Amendment | Jan 30, 2002 | Jan 30, 2002 | Crimson Energy Company, LC | Briscoe "E" #118 | 6,100 | 47938039 |
| 517132 | Jan 30, 2002 | Jan 30, 2002 | Crimson Energy Company, LC | Briscoe "E" #120 | 6,100 | 47938040 |
| 517193 | Jan 29, 2002 | Jan 29, 2002 | EOG Resources, Inc. | Union Ranch #2 | 12,400 | 47938043 |
| 517172 | Jan 29, 2002 | Jan 29, 2002 | Houston Exploration Company, The | Hubberd, William "C" #41 | 9,200 | 47938041 |
| 517171 | Jan 29, 2002 | Jan 29, 2002 | Houston Exploration Company, The | Hubberd, William "A" #40 | 9,000 | 47938042 |
| 517032 | Jan 25, 2002 | Jan 25, 2002 | Crimson Energy Company, LC | Briscoe "E" #115 | 6,100 | 47938037 |
| 517030 | Jan 25, 2002 | Jan 25, 2002 | Crimson Energy Company, LC | Briscoe "E" #117 | 6,100 | 47938035 |
| 517028 | Jan 25, 2002 | Jan 25, 2002 | Crimson Energy Company, LC | Briscoe "E" #119 | 6,100 | 47938034 |
| 517026 | Jan 25, 2002 | Jan 25, 2002 | Killam Oil Co., Ltd. | Vaquillas-Borrego #2 | 11,000 | 47938032 |
| 517031 | Jan 24, 2002 | Jan 24, 2002 | Crimson Energy Company, LC | Briscoe "E" #116 | 6,100 | 47938036 |
| 517027 | Jan 24, 2002 | Jan 24, 2002 | Crimson Energy Company, LC | Briscoe "E" #112 | 6,100 | 47938033 |
| 516475 | Jan 24, 2002 | Jan 24, 2002 | Killam Oil Co., Ltd. | McGrath #7 | 10,800 | 47938011 |
| 517048 | Jan 23, 2002 | Jan 23, 2002 | Calpine Natural Gas Company | Gill, F. J. #17 | 11,000 | 47938031 |
| 517047 | Jan 23, 2002 | Jan 23, 2002 | Calpine Natural Gas Company | Gill, F. J. #19 | 11,000 | 47938030 |
| 517046 | Jan 23, 2002 | Jan 23, 2002 | Calpine Natural Gas Company | Mayers #10 | 11,000 | 47938029 |
| 516982 | Jan 22, 2002 | Jan 22, 2002 | EOG Resources, Inc. | BMT/K&h"j" #2 | 11,000 | 47938028 |
| 516800 | Jan 18, 2002 | Jan 18, 2002 | Kerns O & G, Inc. | Gates Ranch "Y" #407A | 5,900 | 47938023 |
| 516903 | Jan 17, 2002 | Jan 17, 2002 | Calpine Natural Gas Company | Mayers #7 | 11,400 | 47938027 |
| 516864 | Jan 17, 2002 | Jan 17, 2002 | Conoco Inc. | Hein Trust D #6 | 11,700 | 47938026 |
| 516816 | Jan 15, 2002 | Jan 15, 2002 | Crimson Energy Company, LC | Briscoe "E" #93 | 6,100 | 47938024 |
| 516815 | Jan 15, 2002 | Jan 15, 2002 | Crimson Energy Company, LC | Briscoe "E" #97 | 6,100 | 47938025 |
| 516696 | Jan 14, 2002 | Jan 14, 2002 | Conoco Inc. | Culpepper No. 2068 #1 | 9,100 | 47938022 |
| 516679 | Jan 11, 2002 | Jan 11, 2002 | Conoco Inc. | Vaquillas Ranch Co. Ltd #69 | 10,700 | 47938020 |
| 516746 | Jan 10, 2002 | Jan 10, 2002 | Mobil Producing TX. & N.M. Inc. | Callaghan Ranch #14 | 5,725 | 47930633 |
| 516741 | Jan 10, 2002 | Jan 10, 2002 | Conoco Inc. | BMT #118 | 10,700 | 47938021 |
| 516672 | Jan 8, 2002 | Jan 8, 2002 | Calpine Natural Gas Company | G. & F. Ramirez Gas Unit #7 | 11,000 | 47938019 |
| 516640 | Jan 8, 2002 | Jan 8, 2002 | Four Star Oil and Gas Company | El Gato #25 | 9,900 | 47938018 |
| 516597 | Jan 4, 2002 | Jan 4, 2002 | Kerns O & G, Inc. | Gates Ranch "W" #1235 | 5,800 | 47938017 |
| 516597Amendment | Jan 4, 2002 | Jan 4, 2002 | Kerns O & G, Inc. | Gates Ranch "W" #1235 | 5,950 | 47938017 |
| 516547 | Jan 4, 2002 | Jan 4, 2002 | Kerns O & G, Inc. | Petty Ranch #1517 | 5,500 | 47938013 |
| 516577 | Jan 3, 2002 | Jan 3, 2002 | Eex Operating, L.P. | Alley #16 | 12,000 | 47938015 |
| 516576 | Jan 3, 2002 | Jan 3, 2002 | Eex Operating, L.P. | Vergara 1674 #9 | 11,000 | 47938016 |
| 516571 | Jan 3, 2002 | Jan 3, 2002 | Conoco Inc. | Walter Despain 12 #1 | 11,300 | 47938014 |
| 516545 | Jan 2, 2002 | Jan 2, 2002 | EOG Resources, Inc. | BMT/K&H "E" #3 | 11,400 | 47938012 |
| 516387 | Dec 21, 2001 | Dec 21, 2001 | Eex Operating, L.P. | Alley #15 | 12,000 | 47938010 |
| 516370 | Dec 21, 2001 | Dec 21, 2001 | Kerns O & G, Inc. | Petty Ranch #8022 | 5,500 | 47938009 |
| 516360 | Dec 21, 2001 | Dec 21, 2001 | Conoco Inc. | BMT #159 | 10,800 | 47938008 |
| 516360Amendment | Dec 21, 2001 | Dec 21, 2001 | Conoco Inc. | BMT #159 | 10,800 | 47938008 |
| 516358 | Dec 21, 2001 | Dec 21, 2001 | Conoco Inc. | Bruni Ranch #78 | 12,200 | 47938007 |
| 516348 | Dec 20, 2001 | Dec 20, 2001 | Britanco, L.L.C. | KHB #1 | 3,950 | 47902173 |
| 516289 | Dec 19, 2001 | Dec 19, 2001 | Conoco Inc. | Dix Ranch D 899 #2 | 8,300 | 47938006 |
| 516260 | Dec 18, 2001 | Dec 18, 2001 | Calpine Natural Gas Company | Pena, H. L. #8 | 10,500 | 47938005 |
| 516260Amendment | Dec 18, 2001 | Dec 18, 2001 | Calpine Natural Gas Company | Pena, H. L. #8 | 10,500 | 47938005 |
| 516260Amendment | Dec 18, 2001 | Dec 18, 2001 | Calpine Natural Gas Company | Pena, H. L. #8 | 10,500 | 47938005 |
| 516221 | Dec 18, 2001 | Dec 18, 2001 | Conoco Inc. | Dix Ranch C 101 #3 | 7,700 | 47938004 |
| 516214 | Dec 17, 2001 | Dec 17, 2001 | Conoco Inc. | Frost National Bank #81 | 10,200 | 47938003 |
| 516094 | Dec 17, 2001 | Dec 17, 2001 | Crimson Energy Company, LC | Briscoe "E" #104 | 6,100 | 47938001 |
| 516093 | Dec 17, 2001 | Dec 17, 2001 | Crimson Energy Company, LC | Briscoe "E" #99 | 6,100 | 47938000 |
| 516091 | Dec 17, 2001 | Dec 17, 2001 | Calpine Natural Gas Company | Lundell Ranch #3 | 11,518 | 47933816 |
| 516159 | Dec 14, 2001 | Dec 14, 2001 | EOG Resources, Inc. | Frost Trust 29 #1 | 12,300 | 47938002 |
| 516105 | Dec 13, 2001 | Dec 13, 2001 | Conoco Inc. | Lundell E #3 | 15,600 | 47937999 |
| 516105Amendment | Dec 13, 2001 | Dec 13, 2001 | Conoco Inc. | Lundell E #3 | 15,600 | 47937999 |
| 516073 | Dec 12, 2001 | Dec 12, 2001 | EOG Resources, Inc. | Cabezon #4 | 10,200 | 47937998 |
| 516073Amendment | Dec 12, 2001 | Dec 12, 2001 | EOG Resources, Inc. | Cabezon #4 | 10,200 | 47937998 |
| 515948 | Dec 7, 2001 | Dec 7, 2001 | Michael Petroleum Corporation | Bruni-Summers #22 | 10,500 | 47937997 |
| 515948Amendment | Dec 7, 2001 | Dec 7, 2001 | Calpine Natural Gas Company | Bruni-Summers #22 | 12,500 | 47937997 |
| 515943 | Dec 7, 2001 | Dec 7, 2001 | Lewis Petro Properties, Inc. | Gates "N" 2182 13A #21 | 6,000 | 47937996 |
| 515937 | Dec 7, 2001 | Dec 7, 2001 | Conoco Inc. | Hein B #3 | 7,400 | 47934579 |
| 515779 | Dec 3, 2001 | Dec 3, 2001 | EOG Resources, Inc. | BMT/K&H -D- #8 | 11,700 | 47937995 |
| 515659 | Nov 28, 2001 | Nov 28, 2001 | EOG Resources, Inc. | Billings B #2 | 12,150 | 47937994 |
| 515653 | Nov 28, 2001 | Nov 28, 2001 | Lewis Petro Properties, Inc. | Palafox 2182 19F #57 | 9,000 | 47937993 |
| 515653Amendment | Nov 28, 2001 | Nov 28, 2001 | Lewis Petro Properties, Inc. | Palafox 2182 19F #57 | 9,000 | 47937993 |
| 515638 | Nov 28, 2001 | Nov 28, 2001 | Conoco Inc. | Hirsch Estate 537 #6 | 9,498 | 47937992 |
| 515593 | Nov 28, 2001 | Nov 28, 2001 | Kerns O & G, Inc. | Petty Ranch #5016 | 5,500 | 47937991 |
| 515590 | Nov 26, 2001 | Nov 26, 2001 | Lewis Petro Properties, Inc. | Owen #2 | 9,000 | 47937990 |
| 515502 | Nov 21, 2001 | Nov 21, 2001 | Killam Oil Co., Ltd. | Vaquillas-Borrego #1 | 10,400 | 47937989 |
| 515502Amendment | Nov 21, 2001 | Nov 21, 2001 | Killam Oil Co., Ltd. | Vaquillas-Borrego #1 | 10,400 | 47937989 |
| 515474 | Nov 20, 2001 | Nov 20, 2001 | Conoco Inc. | Saldivar Estate #28 | 12,835 | 47937988 |
| 515442 | Nov 19, 2001 | Nov 19, 2001 | Lewis Petro Properties, Inc. | Palafox 21F #50 | 9,000 | 47937987 |
| 515441 | Nov 19, 2001 | Nov 19, 2001 | Lewis Petro Properties, Inc. | Palafox 2182 19F #58 | 9,000 | 47937986 |
| 515402 | Nov 19, 2001 | Nov 19, 2001 | Conoco Inc. | A.B. Culpepper 2064 #1 | 9,300 | 47937985 |
| 515419 | Nov 16, 2001 | Nov 16, 2001 | EOG Resources, Inc. | Billings A #2 | 11,900 | 47937984 |
| 515322 | Nov 16, 2001 | Nov 16, 2001 | Conoco Inc. | Saldivar Estate #29 | 13,700 | 47937983 |
| 515286 | Nov 13, 2001 | Nov 13, 2001 | Conoco Inc. | Frost Trust 49 #1 | 10,100 | 47937982 |
| 515261 | Nov 12, 2001 | Nov 12, 2001 | Rio Exploration Company | Palafox #1106 | 4,000 | 47937981 |
| 515261Amendment | Nov 12, 2001 | Nov 12, 2001 | High Island Oil Corporation | Palafox #1106 | 7,000 | 47937981 |
| 515248 | Nov 9, 2001 | Nov 9, 2001 | Ricochet Energy, Inc. | Hubberd "B" #1 | 9,500 | 47937980 |
| 515212 | Nov 9, 2001 | Nov 9, 2001 | Conoco Inc. | Bruni Ranch #39 | 10,400 | 47937170 |
| 508220Amendment | Nov 9, 2001 | Nov 9, 2001 | Conoco Inc. | Kaiser State 18 #1 | 11,305 | 47937793 |
| 515057 | Nov 5, 2001 | Nov 5, 2001 | Ricochet Energy, Inc. | Hubberd "C" #1 | 9,500 | 47937979 |
| 515056 | Nov 5, 2001 | Nov 5, 2001 | EOG Resources, Inc. | BMT/K&H "J" #1 | 11,450 | 47937978 |
| 514886 | Oct 30, 2001 | Oct 30, 2001 | Columbus Energy Corp. | Hachar #38 | 9,000 | 47937977 |
| 514861 | Oct 30, 2001 | Oct 30, 2001 | Conoco Inc. | BMT #161 | 11,800 | 47937976 |
| 514811 | Oct 26, 2001 | Oct 26, 2001 | High Island Oil Corporation | Palafox #1140 | 7,000 | 47937975 |
| 514704 | Oct 23, 2001 | Oct 23, 2001 | Lewis Petro Properties, Inc. | Gates #17A | 5,800 | 47937973 |
| 514703 | Oct 23, 2001 | Oct 23, 2001 | Lewis Petro Properties, Inc. | Gates #11A | 5,800 | 47937972 |
| 514702 | Oct 23, 2001 | Oct 23, 2001 | Lewis Petro Properties, Inc. | Gates #10B | 6,000 | 47937971 |
| 514701 | Oct 23, 2001 | Oct 23, 2001 | Lewis Petro Properties, Inc. | Gates 1285 #11B | 6,000 | 47937974 |
| 514407 | Oct 17, 2001 | Oct 17, 2001 | Killam Oil Co., Ltd. | Barrera - Martin G.U. #1 | 9,500 | 47937969 |
| 514461 | Oct 15, 2001 | Oct 15, 2001 | High Island Oil Corporation | Palafox #1040 | 7,000 | 47937968 |
| 514348 | Oct 10, 2001 | Oct 10, 2001 | Conoco Inc. | B.M.T. #142 | 11,500 | 47937966 |
| 514347 | Oct 10, 2001 | Oct 10, 2001 | Conoco Inc. | Carr #134 | 9,550 | 47937967 |
| 514336 | Oct 10, 2001 | Oct 10, 2001 | Conoco Inc. | Frost Trust 43 #1 | 11,300 | 47937965 |
| 513471 | Oct 10, 2001 | Oct 10, 2001 | Britanco, L.L.C. | Bruni, A. M. Estate -B- #2 | 2,600 | 47902213 |
| 514313 | Oct 9, 2001 | Oct 9, 2001 | Conoco Inc. | Benavides, Rosa V. D1 #60 | 8,950 | 47936407 |
| 514260 | Oct 8, 2001 | Oct 8, 2001 | High Island Oil Corporation | Palafox Exploration #9040 | 7,000 | 47937964 |
| 513550Amendment | Oct 8, 2001 | Oct 8, 2001 | EOG Resources, Inc. | BMT/K&H "Z" #5 | 12,100 | 47937970 |
| 514212 | Oct 5, 2001 | Oct 5, 2001 | Kerns O & G, Inc. | Petty Ranch #9022 | 5,500 | 47937963 |