| 529138 | Mar 7, 2003 | Mar 7, 2003 | Crimson Energy Company, LC | Briscoe "E" #139 | 6,500 | 47938348 |
| 529137 | Mar 7, 2003 | Mar 7, 2003 | Crimson Energy Company, LC | Brask #6 | 6,500 | 47938347 |
| 529181 | Mar 6, 2003 | Mar 6, 2003 | Houston Exploration Company, The | Alexander, Charles #49 | 9,500 | 47938353 |
| 529220 | Mar 5, 2003 | Mar 5, 2003 | Calpine Natural Gas L.P. | South Callaghan Ranch #192 | 9,500 | 47938344 |
| 529209 | Mar 5, 2003 | Mar 5, 2003 | Lewis Petro Properties, Inc. | W. V. Booth et al 2292 "H" #5AH | 10,000 | 47938351 |
| 529209Amendment | Mar 5, 2003 | Mar 5, 2003 | Lewis Petro Properties, Inc. | Booth, W. V. et al 2292 "H" #5AH | 10,000 | 47938351 |
| 529158 | Mar 4, 2003 | Mar 4, 2003 | BP America Production Company | Stroman-Armstrong #4 | 15,200 | 47938346 |
| 529039 | Mar 3, 2003 | Mar 3, 2003 | Conocophillips Company | Vaquillas Ranch E #209 | 12,200 | 47938345 |
| 529012 | Feb 28, 2003 | Feb 28, 2003 | Houston Exploration Company, The | Alexander, Charles #47 | 9,500 | 47938343 |
| 528979 | Feb 27, 2003 | Feb 27, 2003 | Thorp Petroleum Corporation | Bailey-Reese #1 | 14,500 | 47938342 |
| 528865 | Feb 27, 2003 | Feb 27, 2003 | Conocophillips Company | Yates #7 | 12,900 | 47938341 |
| 528802 | Feb 24, 2003 | Feb 24, 2003 | EOG Resources, Inc. | Moglia "O" #1 | 13,400 | 47938340 |
| 528795 | Feb 24, 2003 | Feb 24, 2003 | Crimson Energy Company, LC | Briscoe "J" #12 | 6,500 | 47938339 |
| 528794 | Feb 24, 2003 | Feb 24, 2003 | Crimson Energy Company, LC | Briscoe "J" #13 | 6,500 | 47938337 |
| 528794Amendment | Feb 24, 2003 | Feb 24, 2003 | Crimson Energy Company, LC | Briscoe "J" #13 | 6,500 | 47938337 |
| 528793 | Feb 24, 2003 | Feb 24, 2003 | Crimson Energy Company, LC | Briscoe "A" #930 | 5,500 | 47932197 |
| 528597 | Feb 24, 2003 | Feb 24, 2003 | Calpine Natural Gas L.P. | South Callaghan Ranch #194 | 10,000 | 47938336 |
| 528728 | Feb 21, 2003 | Feb 21, 2003 | EOG Resources, Inc. | Staggs #1 | 12,800 | 47938338 |
| 528532 | Feb 19, 2003 | Feb 19, 2003 | Kerns O & G, Inc. | Brask State 1846 #5 | 5,700 | 47938335 |
| 528469 | Feb 14, 2003 | Feb 14, 2003 | Conocophillips Company | B.M.T. #176 | 11,000 | 47938334 |
| 528412 | Feb 13, 2003 | Feb 13, 2003 | Houston Exploration Company, The | Hubberd, William "C2" #60 | 9,200 | 47938333 |
| 528323 | Feb 13, 2003 | Feb 13, 2003 | Calpine Natural Gas L.P. | South Callaghan Ranch #193 | 10,000 | 47938330 |
| 528180 | Feb 13, 2003 | Feb 13, 2003 | Houston Exploration Company, The | Hubberd, William -D- #17 | 7,000 | 47932357 |
| 528180Amendment | Feb 13, 2003 | Feb 13, 2003 | Houston Exploration Company, The | Hubberd, William -D- #17 | 7,250 | 47932357 |
| 528402 | Feb 12, 2003 | Feb 12, 2003 | Lewis Petro Properties, Inc. | Gates 2182 "N" 14 #26 | 6,000 | 47938332 |
| 528382 | Feb 12, 2003 | Feb 12, 2003 | BP America Production Company | Stroman-Armstrong #3 | 14,700 | 47938085 |
| 528355 | Feb 11, 2003 | Feb 11, 2003 | EOG Resources, Inc. | Villarreal #10 | 12,000 | 47938331 |
| 528245 | Feb 11, 2003 | Feb 11, 2003 | North Central Oil Corp. | Russell - Winch #21 | 10,400 | 47938329 |
| 528245Amendment | Feb 11, 2003 | Feb 11, 2003 | North Central Oil Corp. | Russell - Winch #21 | 10,400 | 47938329 |
| 528244 | Feb 11, 2003 | Feb 11, 2003 | North Central Oil Corp. | Webb County School Board #11 | 8,700 | 47938328 |
| 528215 | Feb 10, 2003 | Feb 10, 2003 | Conocophillips Company | Vaquillas Ranch Co. S.G.U. #12 | 10,740 | 47938325 |
| 528262 | Feb 7, 2003 | Feb 7, 2003 | EOG Resources, Inc. | Billings "B" #7 | 12,700 | 47938327 |
| 528218 | Feb 7, 2003 | Feb 7, 2003 | Houston Exploration Company, The | Alexander, Charles #46 | 9,400 | 47938326 |
| 528205 | Feb 6, 2003 | Feb 6, 2003 | Virtex Petroleum Company, Inc. | Slaughter-Walker #4 | 7,700 | 47938323 |
| 528205Amendment | Feb 6, 2003 | Feb 6, 2003 | Virtex Petroleum Company, Inc. | Slaughter-Walker #4 | 7,700 | 47938323 |
| 528204 | Feb 6, 2003 | Feb 6, 2003 | Virtex Petroleum Company, Inc. | Slaughter-Walker #3 | 7,700 | 47938324 |
| 528204Amendment | Feb 6, 2003 | Feb 6, 2003 | Virtex Petroleum Company, Inc. | Slaughter-Walker #3 | 7,700 | 47938324 |
| 528150 | Feb 6, 2003 | Feb 6, 2003 | Conocophillips Company | Vergara, Ignacio #7 | 11,265 | 47938322 |
| 528134 | Feb 5, 2003 | Feb 5, 2003 | Conocophillips Company | Vaquillas Ranch A1 #208 | 11,700 | 47938321 |
| 528097 | Feb 5, 2003 | Feb 5, 2003 | Kerns O & G, Inc. | Brask State 1840S #4 | 5,700 | 47938320 |
| 528022 | Feb 4, 2003 | Feb 4, 2003 | Killam Oil Co., Ltd. | Summers, Bruni #16 | 9,000 | 47938319 |
| 526709 | Feb 3, 2003 | Feb 3, 2003 | North Central Oil Corp. | Hereford, L. M. #5 | 8,140 | 47930986 |
| 527949 | Jan 31, 2003 | Jan 31, 2003 | Calpine Natural Gas L.P. | South Callaghan Ranch #188 | 9,500 | 47938318 |
| 527718 | Jan 27, 2003 | Jan 27, 2003 | Houston Exploration Company, The | Alexander, Charles #45 | 9,400 | 47938317 |
| 527718Amendment | Jan 27, 2003 | Jan 27, 2003 | Houston Exploration Company, The | Alexander, Charles #45 | 9,400 | 47938317 |
| 527696 | Jan 24, 2003 | Jan 24, 2003 | Lewis Petro Properties, Inc. | Fuller 2292 "H" #2AH | 10,200 | 47938316 |
| 527485 | Jan 24, 2003 | Jan 24, 2003 | Houston Exploration Company, The | Hubberd, Marie S. Trusts #59 | 10,700 | 47938311 |
| 527412 | Jan 24, 2003 | Jan 24, 2003 | Crimson Energy Company, LC | Briscoe "J" #8 | 6,500 | 47938310 |
| 527627 | Jan 23, 2003 | Jan 23, 2003 | Conocophillips Company | B.M.T. #164 | 10,100 | 47938315 |
| 527627Amendment | Jan 23, 2003 | Jan 23, 2003 | Conocophillips Company | B.M.T. #164 | 10,100 | 47938315 |
| 527619 | Jan 23, 2003 | Jan 23, 2003 | Lewis Petro Properties, Inc. | Apache 1037 #1 | 5,500 | 47938314 |
| 527619Amendment | Jan 23, 2003 | Jan 23, 2003 | Lewis Petro Properties, Inc. | Apache 1037 #1 | 5,600 | 47938314 |
| 527610 | Jan 23, 2003 | Jan 23, 2003 | United Oil & Minerals L. P. | Link Ranch #6 | 9,000 | 47938313 |
| 527609 | Jan 23, 2003 | Jan 23, 2003 | Conocophillips Company | Carr #138 | 10,400 | 47938312 |
| 527268 | Jan 17, 2003 | Jan 17, 2003 | Crimson Energy Company, LC | Briscoe "J" #9 | 6,500 | 47938307 |
| 527348 | Jan 16, 2003 | Jan 16, 2003 | Houston Exploration Company, The | Alexander, Charles #43 | 9,500 | 47938309 |
| 527293 | Jan 15, 2003 | Jan 15, 2003 | Conocophillips Company | Yates #6 | 12,800 | 47938308 |
| 527288 | Jan 15, 2003 | Jan 15, 2003 | Conocophillips Company | Vaquillas Ranch Co. Ltd #70 | 10,800 | 47938306 |
| 527264 | Jan 14, 2003 | Jan 14, 2003 | Zachry Exploration, Ltd. | Rancho Blanco #29 | 7,900 | 47938305 |
| 527191 | Jan 10, 2003 | Jan 10, 2003 | Calpine Natural Gas L.P. | South Callaghan Ranch #191 | 9,500 | 47938304 |
| 527156 | Jan 10, 2003 | Jan 10, 2003 | Hillside Oil & Gas LLC | Moos, H. B #5 | 4,350 | 47932978 |
| 527073 | Jan 8, 2003 | Jan 8, 2003 | EOG Resources, Inc. | Billings B #6 | 12,500 | 47938303 |
| 527002 | Jan 8, 2003 | Jan 8, 2003 | Conocophillips Company | B.M.T. #185 | 10,850 | 47938302 |
| 526912 | Jan 7, 2003 | Jan 7, 2003 | Crimson Energy Company, LC | Brask #3 | 6,500 | 47938299 |
| 526909 | Jan 7, 2003 | Jan 7, 2003 | Crimson Energy Company, LC | Briscoe "K" State A #3 | 6,500 | 47938298 |
| 526959 | Jan 6, 2003 | Jan 6, 2003 | Conocophillips Company | Dix Ranch A-535 #1 | 9,000 | 47938300 |
| 526913 | Jan 6, 2003 | Jan 6, 2003 | Crimson Energy Company, LC | Briscoe "J" #11 | 6,500 | 47938296 |
| 526913Amendment | Jan 6, 2003 | Jan 6, 2003 | Crimson Energy Company, LC | Briscoe "J" #11 | 6,500 | 47938296 |
| 526911 | Jan 6, 2003 | Jan 6, 2003 | Crimson Energy Company, LC | Briscoe "J" #10 | 6,500 | 47938297 |
| 526874 | Jan 2, 2003 | Jan 2, 2003 | Zachry Exploration, Ltd. | Rancho Blanco #14 | 7,900 | 47938295 |
| 526873 | Jan 2, 2003 | Jan 2, 2003 | Zachry Exploration, Ltd. | Rancho Blanco #13 | 7,900 | 47938294 |
| 526847 | Dec 31, 2002 | Dec 31, 2002 | High Island Oil Corporation | Palafox Exploration #1240 | 7,000 | 47938293 |
| 526845 | Dec 31, 2002 | Dec 31, 2002 | High Island Oil Corporation | Palafox Exploration #1340 | 7,000 | 47938292 |
| 526824 | Dec 31, 2002 | Dec 31, 2002 | Lewis Petro Properties, Inc. | Fuller 2292 #3 | 10,000 | 47938291 |
| 526798 | Dec 30, 2002 | Dec 30, 2002 | Conoco Inc. | B. M. T. A #7 | 11,100 | 47938290 |
| 526736 | Dec 30, 2002 | Dec 30, 2002 | Kerns O & G, Inc. | Brask State Unit #6 | 5,500 | 47938288 |
| 526775 | Dec 27, 2002 | Dec 27, 2002 | Middleton Oil Company | Triphene Middleton et al E #7 | 7,200 | 47938289 |
| 531734 | Dec 20, 2002 | Dec 20, 2002 | Lewis Petro Properties, Inc. | Johnson 2292 "L" #1H | 10,000 | 47938134 |
| 531734Amendment | Dec 20, 2002 | Dec 20, 2002 | Lewis Petro Properties, Inc. | Johnson 2292 "L" #1H | 10,000 | 47938134 |
| 526598 | Dec 20, 2002 | Dec 20, 2002 | Houston Exploration Company, The | Schwarz, N.C. #1 | 7,750 | 47938287 |
| 526543 | Dec 19, 2002 | Dec 19, 2002 | Zachry Exploration, Ltd. | Rancho Blanco #12 | 7,200 | 47938286 |
| 526471 | Dec 18, 2002 | Dec 18, 2002 | Conoco Inc. | B.M.T. B #5 | 11,100 | 47938285 |
| 526354 | Dec 18, 2002 | Dec 18, 2002 | Calpine Natural Gas L.P. | South Callaghan Ranch #181 | 9,500 | 47938283 |
| 526468 | Dec 17, 2002 | Dec 17, 2002 | Conoco Inc. | Carr #137 | 10,450 | 47938284 |
| 526299 | Dec 12, 2002 | Dec 12, 2002 | Conoco Inc. | B. M. T. #158 | 10,800 | 47938282 |
| 526269 | Dec 11, 2002 | Dec 11, 2002 | Chevron U. S. A. Inc. | Macmahon, P. A. #10 | 6,520 | 47936666 |
| 526254 | Dec 11, 2002 | Dec 11, 2002 | Conoco Inc. | Vaquillas Ranch L2 #207 | 9,200 | 47938281 |
| 526228 | Dec 10, 2002 | Dec 10, 2002 | Houston Exploration Company, The | Alexander, Charles #44 | 9,500 | 47938280 |
| 526228Amendment | Dec 10, 2002 | Dec 10, 2002 | Houston Exploration Company, The | Alexander, Charles #44 | 9,500 | 47938280 |
| 526216 | Dec 10, 2002 | Dec 10, 2002 | United Oil & Minerals L. P. | McKendrick #19 | 10,500 | 47938279 |
| 526215 | Dec 10, 2002 | Dec 10, 2002 | United Oil & Minerals L. P. | McKendrick #18 | 10,500 | 47938278 |
| 526070 | Dec 5, 2002 | Dec 5, 2002 | Kerns O & G, Inc. | Brask State 1846 #2 | 5,500 | 47938277 |
| 526050 | Dec 4, 2002 | Dec 4, 2002 | Houston Exploration Company, The | Alexander, Charles #42 | 9,200 | 47938276 |
| 526025 | Dec 3, 2002 | Dec 3, 2002 | North Central Oil Corp. | Webb County School Board #4 | 8,700 | 47938275 |
| 525855 | Dec 2, 2002 | Dec 2, 2002 | Crimson Energy Company, LC | Briscoe "C"(briscoe "D" #569) #2 | 4,468 | 47931908 |
| 525830 | Nov 26, 2002 | Nov 26, 2002 | Conoco Inc. | BMT #49 | 11,900 | 47936364 |
| 525857 | Nov 25, 2002 | Nov 25, 2002 | Sklar Exploration Company LLC | Bruni "A" #1 | 7,000 | 47938274 |
| 525843 | Nov 25, 2002 | Nov 25, 2002 | Houston Exploration Company, The | Martin - Volz #3 | 9,200 | 47938273 |
| 525753 | Nov 21, 2002 | Nov 21, 2002 | Middleton Oil Company | Middleton, Triphene et Al #F 4 | 7,200 | 47938272 |
| 525736 | Nov 21, 2002 | Nov 21, 2002 | Conoco Inc. | Hirsch State 2072 #7 | 8,350 | 47938271 |