| 520336 | May 24, 2002 | May 24, 2002 | Conoco Inc. | Culpepper, A. B. 2068 #2 | 9,100 | 47938122 |
| 520252 | May 23, 2002 | May 23, 2002 | Conoco Inc. | B.M.T. #171 | 10,500 | 47938121 |
| 520155 | May 22, 2002 | May 22, 2002 | Crimson Energy Company, LC | Briscoe "E" #130 | 6,200 | 47938120 |
| 520154 | May 22, 2002 | May 22, 2002 | Crimson Energy Company, LC | Briscoe "E" #129 | 6,200 | 47938119 |
| 520154Amendment | May 22, 2002 | May 22, 2002 | Crimson Energy Company, LC | Briscoe "E" #129 | 6,200 | 47938119 |
| 520153 | May 22, 2002 | May 22, 2002 | Crimson Energy Company, LC | Briscoe "E" #128 | 6,200 | 47938118 |
| 520135 | May 20, 2002 | May 20, 2002 | Edge Petroleum Oper. Co., Inc. | Lundell Ranch #14 | 11,500 | 47938116 |
| 520056 | May 16, 2002 | May 16, 2002 | EOG Resources, Inc. | Billings "B" #4 | 12,000 | 47938117 |
| 520006 | May 15, 2002 | May 15, 2002 | Conoco Inc. | Walter Despain 12 #2 | 11,100 | 47938115 |
| 520005 | May 15, 2002 | May 15, 2002 | Conoco Inc. | B.M.T. #170 | 11,600 | 47938114 |
| 520001 | May 15, 2002 | May 15, 2002 | Conoco Inc. | A. V. Norfleet #6 | 9,100 | 47938113 |
| 519998 | May 15, 2002 | May 15, 2002 | Conoco Inc. | B.M.T. #172 | 11,850 | 47938112 |
| 519934 | May 15, 2002 | May 15, 2002 | Kerns O & G, Inc. | Petty Ranch #1306 | 5,745 | 47937231 |
| 519910 | May 15, 2002 | May 15, 2002 | Kerns O & G, Inc. | Gates Ranch #E 10 | 5,730 | 47931854 |
| 519925 | May 13, 2002 | May 13, 2002 | Kerns O & G, Inc. | Brask Ranch #5 | 5,800 | 47938111 |
| 519894 | May 10, 2002 | May 10, 2002 | Houston Exploration Company, The | Hubberd "D-4" #52 | 9,900 | 47938110 |
| 519590 | May 9, 2002 | May 9, 2002 | Killam Oil Co., Ltd. | K & H Fee G. U. "1859" #2 | 9,200 | 47938107 |
| 519590Amendment | May 9, 2002 | May 9, 2002 | Killam Oil Co., Ltd. | K & H Fee 'B' 1569 #2 | 9,200 | 47938107 |
| 519689 | May 6, 2002 | May 6, 2002 | Conoco Inc. | Frost National Bank #83 | 10,150 | 47938109 |
| 519669 | May 3, 2002 | May 3, 2002 | Conoco Inc. | B. M. T. #165 | 10,650 | 47938108 |
| 519608 | May 1, 2002 | May 1, 2002 | Columbus Energy Corp. | BMT #16 | 8,000 | 47938106 |
| 519583 | May 1, 2002 | May 1, 2002 | Crimson Energy Company, LC | Briscoe "E" #126 | 6,100 | 47938104 |
| 519582 | May 1, 2002 | May 1, 2002 | Crimson Energy Company, LC | Briscoe "E" #127 | 6,100 | 47938105 |
| 519565 | May 1, 2002 | May 1, 2002 | Kerns O & G, Inc. | Brask Ranch #3 | 5,800 | 47938103 |
| 519575 | Apr 30, 2002 | Apr 30, 2002 | Ricochet Energy, Inc. | Hubberd "T" #3 | 9,000 | 47935886 |
| 519425 | Apr 30, 2002 | Apr 30, 2002 | Crimson Energy Company, LC | Brask #1 | 6,500 | 47938099 |
| 519424 | Apr 30, 2002 | Apr 30, 2002 | Crimson Energy Company, LC | Brask #2 | 6,500 | 47938100 |
| 519420 | Apr 30, 2002 | Apr 30, 2002 | Killam Oil Co., Ltd. | Martin, J. C. III "A" #7 | 9,500 | 47938101 |
| 519502 | Apr 29, 2002 | Apr 29, 2002 | Houston Exploration Company, The | Hubberd #51 | 10,400 | 47938102 |
| 519399 | Apr 24, 2002 | Apr 24, 2002 | Crimson Energy Company, LC | Briscoe "E" #125 | 6,200 | 47938098 |
| 519399Amendment | Apr 24, 2002 | Apr 24, 2002 | Crimson Energy Company, LC | Briscoe "E" #125 | 6,200 | 47938098 |
| 519378 | Apr 23, 2002 | Apr 23, 2002 | Conoco Inc. | Frost Trust 49 #2 | 10,250 | 47938097 |
| 519334 | Apr 22, 2002 | Apr 22, 2002 | Lewis Petro Properties, Inc. | Fuller 2292 H #1H | 11,000 | 47938096 |
| 519330 | Apr 22, 2002 | Apr 22, 2002 | Edge Petroleum Oper. Co., Inc. | Lundell Ranch #7 | 11,700 | 47938095 |
| 519330Amendment | Apr 22, 2002 | Apr 22, 2002 | Edge Petroleum Oper. Co., Inc. | Lundell Ranch #7 | 11,700 | 47938095 |
| 519279 | Apr 22, 2002 | Apr 22, 2002 | Conoco Inc. | Vaquillas Ranch A3 #200 | 9,700 | 47938094 |
| 519163 | Apr 18, 2002 | Apr 18, 2002 | Killam Oil Co., Ltd. | Vaquillas-Borrego #4 | 10,000 | 47938093 |
| 519067 | Apr 16, 2002 | Apr 16, 2002 | Chevron U. S. A. Inc. | Bruni Mineral Trust #B 29 | 10,000 | 47938090 |
| 519113 | Apr 15, 2002 | Apr 15, 2002 | EOG Resources, Inc. | Billings B #3 | 12,000 | 47938092 |
| 519112 | Apr 15, 2002 | Apr 15, 2002 | EOG Resources, Inc. | BMT/K&H "L" #1 | 10,400 | 47938091 |
| 519058 | Apr 12, 2002 | Apr 12, 2002 | Houston Exploration Company, The | Hubberd, William "D" #49 | 9,400 | 47938089 |
| 519057 | Apr 12, 2002 | Apr 12, 2002 | Houston Exploration Company, The | Hubberd, Marie S. Trust #50 | 10,200 | 47938088 |
| 519002 | Apr 11, 2002 | Apr 11, 2002 | Crimson Energy Company, LC | Briscoe "E" #122 | 6,100 | 47938086 |
| 519001 | Apr 11, 2002 | Apr 11, 2002 | Crimson Energy Company, LC | Briscoe "E" #124 | 6,100 | 47938087 |
| 518983 | Apr 10, 2002 | Apr 10, 2002 | BP America Production Company | Stroman-Armstrong #3 | 15,500 | 47938085 |
| 518983Amendment | Apr 10, 2002 | Apr 10, 2002 | BP America Production Company | Stroman-Armstrong #3 | 15,500 | 47938085 |
| 518975 | Apr 10, 2002 | Apr 10, 2002 | Lewis Petro Properties, Inc. | Gates 2182 "N" 13A #30 | 4,000 | 47938084 |
| 518975Amendment | Apr 10, 2002 | Apr 10, 2002 | Lewis Petro Properties, Inc. | Gates 2182 "N" 13A #30 | 4,000 | 47938084 |
| 518952 | Apr 9, 2002 | Apr 9, 2002 | Eex Operating, L.P. | Vergara 1680 #2ST | 12,000 | 47933625 |
| 518782 | Apr 5, 2002 | Apr 5, 2002 | Conoco Inc. | Carr #135 | 9,900 | 47938081 |
| 518786 | Apr 4, 2002 | Apr 4, 2002 | Crimson Energy Company, LC | Briscoe "E" #121 | 6,100 | 47938083 |
| 518785 | Apr 4, 2002 | Apr 4, 2002 | Crimson Energy Company, LC | Briscoe "E" #123 | 6,100 | 47938082 |
| 518647 | Apr 2, 2002 | Apr 2, 2002 | Conoco Inc. | Rosa V. Benavides D #87 | 9,400 | 47938080 |
| 518658 | Mar 28, 2002 | Mar 28, 2002 | Columbus Energy Corp. | Hachar #40 | 9,000 | 47938079 |
| 518628 | Mar 28, 2002 | Mar 28, 2002 | Conoco Inc. | B.M.T. #169 | 10,450 | 47938078 |
| 518626 | Mar 28, 2002 | Mar 28, 2002 | Conoco Inc. | B.M.T. A #6 | 11,600 | 47938077 |
| 518626Amendment | Mar 28, 2002 | Mar 28, 2002 | Conoco Inc. | BMT A #6 | 11,600 | 47938077 |
| 518599 | Mar 28, 2002 | Mar 28, 2002 | Killam Oil Co., Ltd. | Vaquillas-Borrego #5 | 10,400 | 47938076 |
| 518038 | Mar 27, 2002 | Mar 27, 2002 | Conoco Inc. | B.M.T. #163 | 11,550 | 47938065 |
| 518588 | Mar 26, 2002 | Mar 26, 2002 | EOG Resources, Inc. | Billings A #3 | 11,850 | 47938075 |
| 518518 | Mar 25, 2002 | Mar 25, 2002 | Houston Exploration Company, The | Hubberd, Marie S. Trusts #47 | 11,000 | 47938074 |
| 518517 | Mar 25, 2002 | Mar 25, 2002 | Houston Exploration Company, The | Hubberd, William "D" #48 | 10,000 | 47938073 |
| 518377 | Mar 18, 2002 | Mar 18, 2002 | Ricochet Energy, Inc. | Hubberd "B" #2 | 9,000 | 47938072 |
| 518377Amendment | Mar 18, 2002 | Mar 18, 2002 | Ricochet Energy, Inc. | Hubberd "B" #2 | 9,000 | 47938072 |
| 518289 | Mar 14, 2002 | Mar 14, 2002 | Conoco Inc. | Norfleet A.V. #5 | 9,100 | 47938071 |
| 518192 | Mar 11, 2002 | Mar 11, 2002 | Conoco Inc. | Saldivar Estate #21 | 11,950 | 47938070 |
| 518158 | Mar 8, 2002 | Mar 8, 2002 | Conoco Inc. | Bruni Ranch #88 | 11,700 | 47938069 |
| 518154 | Mar 7, 2002 | Mar 7, 2002 | Houston Exploration Company, The | Hubberd, William C 3 #46 | 9,800 | 47938068 |
| 518129 | Mar 7, 2002 | Mar 7, 2002 | Kerns O & G, Inc. | Brask State 1846 #1 | 5,700 | 47938067 |
| 518078 | Mar 5, 2002 | Mar 5, 2002 | Icarus Operating Corporation | Garza, Anastacio #1 | 3,000 | 47938066 |
| 518043 | Mar 4, 2002 | Mar 4, 2002 | EOG Resources, Inc. | Cabezon #5 | 9,600 | 47938064 |
| 518017 | Mar 1, 2002 | Mar 1, 2002 | Conoco Inc. | B.M.T. #162 | 10,000 | 47938063 |
| 518011 | Mar 1, 2002 | Mar 1, 2002 | Conoco Inc. | Lechenger #77 | 10,000 | 47938062 |
| 517979 | Feb 28, 2002 | Feb 28, 2002 | Lewis Petro Properties, Inc. | Gates 2182 "N" 13A #22 | 5,800 | 47938061 |
| 517978 | Feb 28, 2002 | Feb 28, 2002 | Lewis Petro Properties, Inc. | Briscoe 21C #4 | 4,400 | 47936375 |
| 517978Amendment | Feb 28, 2002 | Feb 28, 2002 | Crimson Energy Company, LC | Briscoe 21C #4 | 4,400 | 47936375 |
| 517918 | Feb 27, 2002 | Feb 27, 2002 | Conoco Inc. | Lessor Holding #6 | 8,200 | 47938060 |
| 517917 | Feb 27, 2002 | Feb 27, 2002 | Conoco Inc. | B. M. T. #117 | 10,650 | 47938059 |
| 517916 | Feb 27, 2002 | Feb 27, 2002 | Conoco Inc. | Huisache Cattle Company #4 | 11,100 | 47938058 |
| 517909 | Feb 27, 2002 | Feb 27, 2002 | Conoco Inc. | BMT #119 | 10,600 | 47938057 |
| 517907 | Feb 27, 2002 | Feb 27, 2002 | Conoco Inc. | Frost National Bank #82 | 10,200 | 47938056 |
| 517775 | Feb 21, 2002 | Feb 21, 2002 | Houston Exploration Company, The | Hubberd, William "D" #44 | 9,500 | 47938054 |
| 517774 | Feb 21, 2002 | Feb 21, 2002 | Houston Exploration Company, The | Hubberd, William "D" #45 | 9,500 | 47938055 |
| 517774Amendment | Feb 21, 2002 | Feb 21, 2002 | Houston Exploration Company, The | Hubberd, William "D" #45 | 9,500 | 47938055 |
| 517729 | Feb 19, 2002 | Feb 19, 2002 | Lewis Petro Properties, Inc. | Palafox 2292 H #1H | 10,000 | 47938053 |
| 517729Amendment | Feb 19, 2002 | Feb 19, 2002 | Lewis Petro Properties, Inc. | Palafox 2292 H #1H | 10,000 | 47938053 |
| 517729Amendment | Feb 19, 2002 | Feb 19, 2002 | Lewis Petro Properties, Inc. | Palafox Galan -H- #1H | 10,000 | 47938053 |
| 517669 | Feb 19, 2002 | Feb 19, 2002 | Conoco Inc. | B.M.T. #115 | 10,850 | 47938052 |
| 517643 | Feb 15, 2002 | Feb 15, 2002 | Houston Exploration Company, The | Hubberd, William "B" #43 | 10,000 | 47938050 |
| 517635 | Feb 15, 2002 | Feb 15, 2002 | Kerns O & G, Inc. | Petty Ranch #9025 | 5,900 | 47938051 |
| 517559 | Feb 15, 2002 | Feb 15, 2002 | Houston Exploration Company, The | Hubberd #7 | 10,300 | 47936100 |
| 517558 | Feb 15, 2002 | Feb 15, 2002 | Houston Exploration Company, The | Hubberd, William "C" #2 | 8,853 | 47931022 |
| 517492 | Feb 15, 2002 | Feb 15, 2002 | Crimson Energy Company, LC | Briscoe "J" #2 | 6,500 | 47938048 |
| 517492Amendment | Feb 15, 2002 | Feb 15, 2002 | Crimson Energy Company, LC | Briscoe "J" #2 | 6,500 | 47938048 |
| 517491 | Feb 15, 2002 | Feb 15, 2002 | Crimson Energy Company, LC | Briscoe "J" #1 | 6,500 | 47938049 |
| 517446 | Feb 8, 2002 | Feb 8, 2002 | Conoco Inc. | Frost Trust No. 11 #1 | 12,100 | 47938047 |
| 517444 | Feb 8, 2002 | Feb 8, 2002 | Conoco Inc. | Bruni Ranch #87 | 11,900 | 47938046 |
| 517386 | Feb 6, 2002 | Feb 6, 2002 | Eex Operating, L.P. | Alley #17 | 12,000 | 47938045 |
| 517259 | Feb 1, 2002 | Feb 1, 2002 | Houston Exploration Company, The | Hubberd, William "T" #42 | 8,800 | 47938044 |
| 517182 | Feb 1, 2002 | Feb 1, 2002 | Houston Exploration Company, The | Hubberd #1 | 9,700 | 47936007 |