| 518517 | Mar 25, 2002 | Mar 25, 2002 | Houston Exploration Company, The | Webb | Hubberd, William "D" #48 | 10,000 | 47938073 |
| 518474 | Mar 21, 2002 | Mar 21, 2002 | Houston Exploration Company, The | Zapata | Flores, L. G. #33 | 14,800 | 50534513 |
| 517663 | Mar 18, 2002 | Mar 18, 2002 | Houston Exploration Company, The | Zapata | Flores, LG #30 | 11,800 | 50534495 |
| 518154 | Mar 7, 2002 | Mar 7, 2002 | Houston Exploration Company, The | Webb | Hubberd, William C 3 #46 | 9,800 | 47938068 |
| 518056 | Mar 6, 2002 | Mar 6, 2002 | Houston Exploration Company, The | Zapata | Asche #66 | 11,800 | 50534505 |
| 518056Amendment | Mar 6, 2002 | Mar 6, 2002 | Houston Exploration Company, The | Zapata | Asche #66 | 14,000 | 50534505 |
| 518056Amendment | Mar 6, 2002 | Mar 6, 2002 | Houston Exploration Company, The | Zapata | Asche #66 | 14,000 | 50534505 |
| 518055 | Mar 6, 2002 | Mar 6, 2002 | Houston Exploration Company, The | Zapata | Flores, L. G. #32 | 14,600 | 50534506 |
| 517775 | Feb 21, 2002 | Feb 21, 2002 | Houston Exploration Company, The | Webb | Hubberd, William "D" #44 | 9,500 | 47938054 |
| 517774 | Feb 21, 2002 | Feb 21, 2002 | Houston Exploration Company, The | Webb | Hubberd, William "D" #45 | 9,500 | 47938055 |
| 517774Amendment | Feb 21, 2002 | Feb 21, 2002 | Houston Exploration Company, The | Webb | Hubberd, William "D" #45 | 9,500 | 47938055 |
| 517643 | Feb 15, 2002 | Feb 15, 2002 | Houston Exploration Company, The | Webb | Hubberd, William "B" #43 | 10,000 | 47938050 |
| 517559 | Feb 15, 2002 | Feb 15, 2002 | Houston Exploration Company, The | Webb | Hubberd #7 | 10,300 | 47936100 |
| 517558 | Feb 15, 2002 | Feb 15, 2002 | Houston Exploration Company, The | Webb | Hubberd, William "C" #2 | 8,853 | 47931022 |
| 517557 | Feb 13, 2002 | Feb 13, 2002 | Houston Exploration Company, The | Zapata | Flores, L. G. #31 | 11,800 | 50534491 |
| 517557Amendment | Feb 13, 2002 | Feb 13, 2002 | Houston Exploration Company, The | Zapata | Flores, L. G. #31 | 14,500 | 50534491 |
| 517556 | Feb 13, 2002 | Feb 13, 2002 | Houston Exploration Company, The | Zapata | Asche #65 | 13,500 | 50534492 |
| 517259 | Feb 1, 2002 | Feb 1, 2002 | Houston Exploration Company, The | Webb | Hubberd, William "T" #42 | 8,800 | 47938044 |
| 517182 | Feb 1, 2002 | Feb 1, 2002 | Houston Exploration Company, The | Webb | Hubberd #1 | 9,700 | 47936007 |
| 517172 | Jan 29, 2002 | Jan 29, 2002 | Houston Exploration Company, The | Webb | Hubberd, William "C" #41 | 9,200 | 47938041 |
| 517171 | Jan 29, 2002 | Jan 29, 2002 | Houston Exploration Company, The | Webb | Hubberd, William "A" #40 | 9,000 | 47938042 |
| 516941 | Jan 23, 2002 | Jan 23, 2002 | Houston Exploration Company, The | Zapata | Gutierrez, J. M. #14 | 10,500 | 50534479 |
| 516940 | Jan 23, 2002 | Jan 23, 2002 | Houston Exploration Company, The | Zapata | Garza, Lauro #2 | 11,500 | 50534478 |
| 516085 | Jan 7, 2002 | Jan 7, 2002 | Houston Exploration Company, The | Zapata | Leonardo #32 | 10,600 | 50534469 |
| 516574 | Jan 3, 2002 | Jan 3, 2002 | Houston Exploration Company, The | Zapata | Leonardo #33 | 10,500 | 50534472 |
| 516051 | Dec 13, 2001 | Dec 13, 2001 | Houston Exploration Company, The | Zapata | Leonardo #31 | 10,600 | 50534468 |
| 515615 | Nov 28, 2001 | Nov 28, 2001 | Houston Exploration Company, The | Zapata | Flores, L. G. #29 | 12,500 | 50534460 |
| 515614 | Nov 28, 2001 | Nov 28, 2001 | Houston Exploration Company, The | Zapata | Flores, L. G. #28 | 12,500 | 50534459 |
| 514608 | Oct 19, 2001 | Oct 19, 2001 | Houston Exploration Company, The | Zapata | Ramirez Mineral Trust #3 | 14,000 | 50534440 |
| 513259 | Sep 27, 2001 | Sep 27, 2001 | Houston Exploration Company, The | Zapata | Flores, L.G. #26 | 14,800 | 50534411 |
| 513258 | Sep 27, 2001 | Sep 27, 2001 | Houston Exploration Company, The | Zapata | Flores, L.G. #27 | 14,800 | 50534410 |
| 513048 | Sep 24, 2001 | Sep 24, 2001 | Houston Exploration Company, The | Zapata | Gutierrez, E. E. #5 | 11,436 | 50534407 |
| 512726 | Sep 13, 2001 | Sep 13, 2001 | Houston Exploration Company, The | Zapata | Leonardo #30 | 13,500 | 50534404 |
| 513440 | Sep 7, 2001 | Sep 7, 2001 | Houston Exploration Company, The | Zapata | Rodriguez Gas Unit #8 | 12,500 | 50534415 |
| 513439 | Sep 7, 2001 | Sep 7, 2001 | Houston Exploration Company, The | Zapata | Flores, L. G. #25 | 14,800 | 50534414 |
| 512718 | Aug 17, 2001 | Aug 17, 2001 | Houston Exploration Company, The | Zapata | J.O.D. #16 | 14,500 | 50534403 |
| 511775 | Aug 16, 2001 | Aug 16, 2001 | Houston Exploration Company, The | Zapata | Asche #63 | 10,700 | 50534386 |
| 511943 | Jul 30, 2001 | Jul 30, 2001 | Houston Exploration Company, The | Zapata | Gutierrez, J. M. #12 | 10,500 | 50534391 |
| 511942 | Jul 30, 2001 | Jul 30, 2001 | Houston Exploration Company, The | Zapata | J. O. D. #15 | 14,500 | 50534388 |
| 511941 | Jul 30, 2001 | Jul 30, 2001 | Houston Exploration Company, The | Zapata | Asche #64 | 10,700 | 50534389 |
| 511940 | Jul 30, 2001 | Jul 30, 2001 | Houston Exploration Company, The | Zapata | Gutierrez, J. M. #13 | 10,500 | 50534390 |
| 511491 | Jul 16, 2001 | Jul 16, 2001 | Houston Exploration Company, The | Zapata | Asche #62 | 10,700 | 50534383 |
| 510471 | Jul 16, 2001 | Jul 16, 2001 | Houston Exploration Company, The | Zapata | Garza, A. #14 | 10,500 | 50534373 |
| 510470 | Jul 16, 2001 | Jul 16, 2001 | Houston Exploration Company, The | Zapata | Alfonso #21 | 10,320 | 50534372 |
| 510669 | Jun 25, 2001 | Jun 25, 2001 | Houston Exploration Company, The | Zapata | Ramirez Mineral Trust A #2 | 9,500 | 50534375 |
| 510561 | Jun 21, 2001 | Jun 21, 2001 | Houston Exploration Company, The | Zapata | Flores, M. #6 | 9,500 | 50534374 |
| 510430 | Jun 18, 2001 | Jun 18, 2001 | Houston Exploration Company, The | Zapata | Alfonso #20 | 10,320 | 50534371 |
| 510430Amendment | Jun 18, 2001 | Jun 18, 2001 | Houston Exploration Company, The | Zapata | Alfonso #20 | 10,260 | 50534371 |
| 510429 | Jun 18, 2001 | Jun 18, 2001 | Houston Exploration Company, The | Zapata | Garza, A. #15 | 10,300 | 50534370 |
| 510288 | Jun 14, 2001 | Jun 14, 2001 | Houston Exploration Company, The | Zapata | Asche #61 | 10,500 | 50534368 |
| 510287 | Jun 14, 2001 | Jun 14, 2001 | Houston Exploration Company, The | Zapata | Asche #60 | 10,500 | 50534367 |
| 509746 | Jun 4, 2001 | Jun 4, 2001 | Houston Exploration Company, The | Zapata | J. O. D. #14 | 14,500 | 50534361 |
| 509224 | May 21, 2001 | May 21, 2001 | Houston Exploration Company, The | Zapata | Asche #59 | 10,200 | 50534356 |
| 509115 | May 17, 2001 | May 17, 2001 | Houston Exploration Company, The | Gonzales | Barosh #1 | 13,000 | 17732050 |
| 508206 | Apr 26, 2001 | Apr 26, 2001 | Houston Exploration Company, The | Zapata | Alfonso #19 | 10,320 | 50534337 |
| 508205 | Apr 26, 2001 | Apr 26, 2001 | Houston Exploration Company, The | Zapata | Asche #58 | 10,500 | 50534338 |
| 507613 | Apr 10, 2001 | Apr 10, 2001 | Houston Exploration Company, The | Zapata | Alfonso #18 | 10,320 | 50534325 |
| 506813 | Mar 21, 2001 | Mar 21, 2001 | Houston Exploration Company, The | Zapata | RMT #8 | 9,800 | 50534317 |
| 506813Amendment | Mar 21, 2001 | Mar 21, 2001 | Houston Exploration Company, The | Zapata | Ramirez Mineral Trust A #1 | 9,800 | 50534317 |
| 506217 | Mar 8, 2001 | Mar 8, 2001 | Houston Exploration Company, The | Zapata | Flores, L. G. #24 | 14,500 | 50534307 |
| 505881 | Mar 1, 2001 | Mar 1, 2001 | Houston Exploration Company, The | Zapata | Laurel, F. D. #2 | 11,500 | 50534300 |
| 505880 | Mar 1, 2001 | Mar 1, 2001 | Houston Exploration Company, The | Zapata | Asche #57 | 10,800 | 50534301 |
| 505110 | Feb 9, 2001 | Feb 9, 2001 | Houston Exploration Company, The | Zapata | Asche #56 | 13,500 | 50534292 |
| 505109 | Feb 9, 2001 | Feb 9, 2001 | Houston Exploration Company, The | Zapata | Alfonso #17 | 10,320 | 50534293 |
| 504172 | Jan 17, 2001 | Jan 17, 2001 | Houston Exploration Company, The | Zapata | Leonardo #29 | 13,500 | 50534277 |
| 504171 | Jan 17, 2001 | Jan 17, 2001 | Houston Exploration Company, The | Zapata | Asche #55 | 10,800 | 50534276 |
| 503287 | Dec 22, 2000 | Dec 22, 2000 | Houston Exploration Company, The | Zapata | Leonardo #28 | 10,800 | 50534267 |
| 503286 | Dec 22, 2000 | Dec 22, 2000 | Houston Exploration Company, The | Zapata | Asche #54 | 10,800 | 50534266 |
| 503085 | Dec 18, 2000 | Dec 18, 2000 | Houston Exploration Company, The | Zapata | J.O.D. #13 | 12,500 | 50534261 |
| 502717 | Dec 7, 2000 | Dec 7, 2000 | Houston Exploration Company, The | Zapata | Asche #53 | 13,500 | 50534255 |
| 502716 | Dec 7, 2000 | Dec 7, 2000 | Houston Exploration Company, The | Zapata | Leonardo #27 | 11,000 | 50534254 |
| 501973 | Nov 15, 2000 | Nov 15, 2000 | Houston Exploration Company, The | Zapata | Alfonso #16 | 10,320 | 50534245 |
| 501663 | Nov 7, 2000 | Nov 7, 2000 | Houston Exploration Company, The | Zapata | Laurel, F. D. #1 | 11,500 | 50534243 |
| 501013 | Oct 19, 2000 | Oct 19, 2000 | Houston Exploration Company, The | Zapata | Asche #52 | 10,800 | 50534236 |
| 501012 | Oct 19, 2000 | Oct 19, 2000 | Houston Exploration Company, The | Zapata | Leonardo #26 | 11,000 | 50534235 |
| 501011 | Oct 19, 2000 | Oct 19, 2000 | Houston Exploration Company, The | Zapata | Leonardo #25 | 11,000 | 50534234 |
| 501010 | Oct 19, 2000 | Oct 19, 2000 | Houston Exploration Company, The | Zapata | Leonardo #23 | 10,550 | 50534233 |
| 499615 | Sep 21, 2000 | Sep 21, 2000 | Houston Exploration Company, The | Zapata | Ramirez, Abel #5 | 9,500 | 50534216 |
| 499319 | Sep 7, 2000 | Sep 7, 2000 | Houston Exploration Company, The | Zapata | Asche #51 | 10,500 | 50534213 |
| 499013 | Aug 30, 2000 | Aug 30, 2000 | Houston Exploration Company, The | Fort Bend | Tdcj-Jester #1 | 17,500 | 15732111 |
| 498767 | Aug 25, 2000 | Aug 25, 2000 | Houston Exploration Company, The | Zapata | J.O.D. #12 | 14,500 | 50534201 |
| 497183 | Jul 13, 2000 | Jul 13, 2000 | Houston Exploration Company, The | Zapata | Asche #50 | 10,600 | 50534176 |
| 497182 | Jul 13, 2000 | Jul 13, 2000 | Houston Exploration Company, The | Zapata | Leonardo #24 | 10,500 | 50534175 |
| 497182Amendment | Jul 13, 2000 | Jul 13, 2000 | Houston Exploration Company, The | Zapata | Leonardo #24 | 10,500 | 50534175 |
| 496918 | Jul 6, 2000 | Jul 6, 2000 | Houston Exploration Company, The | Zapata | Leonardo #22 | 10,200 | 50534171 |
| 496917 | Jul 6, 2000 | Jul 6, 2000 | Houston Exploration Company, The | Zapata | Asche #49 | 10,800 | 50534170 |
| 496916 | Jul 6, 2000 | Jul 6, 2000 | Houston Exploration Company, The | Zapata | Asche #48 | 13,500 | 50534169 |
| 495953 | Jun 9, 2000 | Jun 9, 2000 | Houston Exploration Company, The | Zapata | Gutierrez, J. M. #11 | 13,200 | 50534151 |
| 495953Amendment | Jun 9, 2000 | Jun 9, 2000 | Houston Exploration Company, The | Zapata | Gutierrez, J. M. #11 | 13,200 | 50534151 |
| 495952 | Jun 9, 2000 | Jun 9, 2000 | Houston Exploration Company, The | Zapata | Gutierrez, J. M. #10 | 10,500 | 50534150 |
| 495951 | Jun 9, 2000 | Jun 9, 2000 | Houston Exploration Company, The | Zapata | RMT #7 | 13,200 | 50534149 |
| 494762 | May 8, 2000 | May 8, 2000 | Houston Exploration Company, The | Zapata | Asche #47 | 10,800 | 50534135 |
| 494759 | May 8, 2000 | May 8, 2000 | Houston Exploration Company, The | Zapata | Leonardo #21 | 13,500 | 50534134 |
| 494759Amendment | May 8, 2000 | May 8, 2000 | Houston Exploration Company, The | Zapata | Leonardo #21 | 13,500 | 50534134 |
| 494706 | May 5, 2000 | May 5, 2000 | Houston Exploration Company, The | Zapata | Asche #46 | 10,500 | 50534132 |
| 494425 | Apr 25, 2000 | Apr 25, 2000 | Houston Exploration Company, The | Zapata | Garza, A. #13 | 10,500 | 50534126 |
| 493474 | Mar 27, 2000 | Mar 27, 2000 | Houston Exploration Company, The | Zapata | Alfonso #15 | 10,320 | 50534105 |
| 492393 | Feb 24, 2000 | Feb 24, 2000 | Houston Exploration Company, The | Zapata | Alfonso #14 | 10,320 | 50534092 |
| 492392 | Feb 24, 2000 | Feb 24, 2000 | Houston Exploration Company, The | Zapata | Alfonso #13 | 10,320 | 50534091 |
| 491309 | Jan 26, 2000 | Jan 26, 2000 | Houston Exploration Company, The | Zapata | Bernardo Gas Unit #13 | 14,500 | 50534074 |