| 505090 | Feb 8, 2001 | Feb 8, 2001 | Tema Oil and Gas Company | Slataper-Peterson #1ST | 9,600 | 16730138 |
| 501456 | Jan 16, 2001 | Jan 16, 2001 | Hunt, Hassie Exploration Co. | C. E. Franks Gas Unit #5 | 11,900 | 16731347 |
| 502845 | Dec 20, 2000 | Dec 20, 2000 | Capco Resources Corporation | Cade Estate #14 | 5,300 | 16730689 |
| 502843 | Dec 13, 2000 | Dec 13, 2000 | Capco Resources Corporation | Zinn & Forman #3 | 7,850 | 16700914 |
| 502922 | Dec 11, 2000 | Dec 11, 2000 | Mitchell Energy Corporation | Galveston Townsite Unit 3 #3 | 8,064 | 16731176 |
| 502857 | Dec 8, 2000 | Dec 8, 2000 | Tepco Resources, Inc. | Halls Bayou Ranch #8R #8R | 15,000 | 16731349 |
| 502857Amendment | Dec 8, 2000 | Dec 8, 2000 | Tepco Resources, Inc. | Halls Bayou Ranch #8R | 16,000 | 16731349 |
| 502857Amendment | Dec 8, 2000 | Dec 8, 2000 | Tepco Resources, Inc. | Halls Bayou Ranch #8R | 18,000 | 16731349 |
| 502314 | Nov 27, 2000 | Nov 27, 2000 | Aspect Resources LLC | Tnct #3 | 10,000 | 16731348 |
| 501582 | Nov 3, 2000 | Nov 3, 2000 | Hunt, Hassie Exploration Co. | Camp Wallace D #1A | 11,400 | 16731179 |
| 501443 | Oct 31, 2000 | Oct 31, 2000 | Davis Petroleum Corp. | State Tract 165 (SW/2) #1 | 11,000 | 16731346 |
| 500203 | Oct 26, 2000 | Oct 26, 2000 | Callon Petroleum Operating Co | Callon-Hanson #1 | 12,001 | 16731316 |
| 501170 | Oct 24, 2000 | Oct 24, 2000 | Transtexas Gas Corporation | San Leon Gas Unit #1 | 20,000 | 16731345 |
| 501170Amendment | Oct 24, 2000 | Oct 24, 2000 | Transtexas Gas Corporation | San Leon Gas Unit #1ST | 20,000 | 16731345 |
| 501170Amendment | Oct 24, 2000 | Oct 24, 2000 | Transtexas Gas Corporation | San Leon Gas Unit #1ST | 20,000 | 16731345 |
| 500428 | Oct 18, 2000 | Oct 18, 2000 | Tepco Resources, Inc. | Halls Bayou Ranch "A" #11 | 19,000 | 16731344 |
| 500428Amendment | Oct 18, 2000 | Oct 18, 2000 | Tepco Resources, Inc. | Halls Bayou Ranch "A" #11 | 19,000 | 16731344 |
| 500428Amendment | Oct 18, 2000 | Oct 18, 2000 | Tepco Resources, Inc. | Halls Bayou Ranch "A" #11 | 19,000 | 16731344 |
| 500423 | Oct 10, 2000 | Oct 10, 2000 | Hunt, Hassie Exploration Co. | Camp Wallace D #1A | 11,400 | 16731179 |
| 500349 | Oct 3, 2000 | Oct 3, 2000 | Aspect Resources LLC | Tnct #2 | 10,263 | 16731343 |
| 500349Amendment | Oct 3, 2000 | Oct 3, 2000 | Aspect Resources LLC | Tnct #2 | 10,500 | 16731343 |
| 500332 | Oct 3, 2000 | Oct 3, 2000 | Transtexas Gas Corporation | State Tract 331 #6 | 16,500 | 16731342 |
| 499448 | Sep 27, 2000 | Sep 27, 2000 | Tepco Resources, Inc. | Halls Bayou Ranch #8 | 14,305 | 16731303 |
| 497424 | Sep 11, 2000 | Sep 11, 2000 | Viking Resources, Inc. | Stewart, Maco #36 | 5,220 | 16730914 |
| 499373 | Sep 8, 2000 | Sep 8, 2000 | Aspect Resources LLC | Wall Estate #1 | 8,900 | 16731341 |
| 499373Amendment | Sep 8, 2000 | Sep 8, 2000 | Aspect Resources LLC | Wall Estate #1H | 8,900 | 16731341 |
| 496862 | Aug 28, 2000 | Aug 28, 2000 | Samedan Oil Corporation | Haberle #1 | 9,300 | 16731337 |
| 498725 | Aug 22, 2000 | Aug 22, 2000 | Transtexas Gas Corporation | State Tract 331 #5ST | 18,000 | 16731320 |
| 498248 | Aug 8, 2000 | Aug 8, 2000 | Samson Lone Star LP | San Leon #1 | 14,500 | 16731340 |
| 498247 | Aug 8, 2000 | Aug 8, 2000 | Capco Resources Corporation | Cade State Unit #1 | 5,599 | 16730615 |
| 498017 | Aug 3, 2000 | Aug 3, 2000 | Transtexas Gas Corporation | State Lease 352 #1 | 18,000 | 16731304 |
| 497671 | Jul 26, 2000 | Jul 26, 2000 | Prize Operating Company | Bruce #1 | 12,580 | 16731006 |
| 497446 | Jul 20, 2000 | Jul 20, 2000 | Capco Resources Corporation | Zinn & Forman #1 | 6,718 | 16700918 |
| 496362 | Jun 20, 2000 | Jun 20, 2000 | Prolithic Energy Company, L.P. | State Tract 233 #2 | 9,800 | 16731336 |
| 494778 | Jun 13, 2000 | Jun 13, 2000 | Smith Energy 1986A Partnership | Maco, Stewart 'A" #3 | 9,250 | 16701503 |
| 494904 | May 15, 2000 | May 15, 2000 | Samedan Oil Corp. -Offshore Div. | S. L. 98157 #1S | 13,500 | 70630221 |
| 493799 | May 10, 2000 | May 10, 2000 | Ohe Corporation | E. Hagler Unit #1 | 12,500 | 16731334 |
| 494279 | Apr 19, 2000 | Apr 19, 2000 | Prolithic Energy Company, L.P. | State Tract 175-A #1 | 7,888 | 16731335 |
| 493605 | Mar 29, 2000 | Mar 29, 2000 | Tepco Resources, Inc. | Houston Farms Development Co. #1 | 7,936 | 16701360 |
| 492931 | Mar 16, 2000 | Mar 16, 2000 | Seneca Resources Corp. | Moody Unit #3 | 7,700 | 16731308 |
| 492858 | Mar 8, 2000 | Mar 8, 2000 | Aspect Resources LLC | Stewart #1 | 9,500 | 16731333 |
| 491601 | Feb 3, 2000 | Feb 3, 2000 | Houston Pet. Co. | Winton Unit #1 | 13,500 | 16702053 |
| 491528 | Feb 1, 2000 | Feb 1, 2000 | Helmerich & Payne, Inc. | Ballard #1 | 15,000 | 16731332 |
| 491528Amendment | Feb 1, 2000 | Feb 1, 2000 | Helmerich & Payne, Inc. | Ballard #1 | 15,000 | 16731332 |
| 490088 | Dec 9, 1999 | Dec 9, 1999 | Helmerich & Payne, Inc. | Kaluza #1 | 10,000 | 16731331 |
| 490088Amendment | Dec 9, 1999 | Dec 9, 1999 | Helmerich & Payne, Inc. | Kaluza #1 | 10,000 | 16731331 |
| 490071 | Dec 6, 1999 | Dec 6, 1999 | Aspect Resources LLC | City of Texas City #1 | 10,900 | 16731329 |
| 490071Amendment | Dec 6, 1999 | Dec 6, 1999 | Aspect Resources LLC | City of Texas City #1 | 10,750 | 16731329 |
| 488551Amendment | Oct 15, 1999 | Oct 15, 1999 | Prolithic Energy Company, L.P. | State Tract 233 #1 | 9,800 | 16731339 |
| 487816 | Oct 12, 1999 | Oct 12, 1999 | Delaware Davis Petroleum Corp. | State Tract 290-S #1 | 7,900 | 16731330 |
| 487928 | Sep 24, 1999 | Sep 24, 1999 | Howard Exploration, Inc. | Henry Flake, Jr. Unit #1 | 9,124 | 16730695 |
| 487729 | Sep 24, 1999 | Sep 24, 1999 | Texas Independent Explor., Inc. | King, Creston #9 | 5,900 | 16731253 |
| 487366 | Sep 14, 1999 | Sep 14, 1999 | Samson Lone Star LP | Cade-Zinn & Forman #1 | 7,720 | 16730975 |
| 487203 | Sep 2, 1999 | Sep 2, 1999 | Aspect Resources LLC | Cross Media #1 | 10,350 | 16731328 |
| 487203Amendment | Sep 2, 1999 | Sep 2, 1999 | Aspect Resources LLC | Cross Media #1 | 9,000 | 16731328 |
| 486021 | Jul 20, 1999 | Jul 20, 1999 | Aspect Resources LLC | Danforth, F. N. #1 | 9,000 | 16731327 |
| 485558 | Jun 30, 1999 | Jun 30, 1999 | Aspect Resources LLC | Tnct #1 | 10,000 | 16731326 |
| 485126 | Jun 10, 1999 | Jun 10, 1999 | Aspect Resources LLC | Levi Goodrich Trustee #1 | 8,600 | 16731325 |
| 484324 | May 25, 1999 | May 25, 1999 | Hunt, Hassie Exploration Co. | C. E. Franks Gas Unit #3 | 11,500 | 16731235 |
| 484498 | May 13, 1999 | May 13, 1999 | Transtexas Gas Corporation | State Tract 308 #1 | 18,000 | 16731324 |
| 484401 | May 12, 1999 | May 12, 1999 | Energy Environmental, LLC | Smith, George E. #33A | 2,900 | 16731323 |
| 484401Amendment | May 12, 1999 | May 12, 1999 | Kga Oil Company, Inc. | Smith, George E. B-R/A-C #33A | 2,900 | 16731323 |
| 484381 | May 12, 1999 | May 12, 1999 | KCS Medallion Resources, Inc. | Stewart, Maco "a" a/C 1 #32 | 8,852 | 16701564 |
| 484303 | May 7, 1999 | May 7, 1999 | Esenjay Exploration, Inc | Goodrich, Levi Trustee #1 | 8,600 | 16731322 |
| 483793 | Apr 19, 1999 | Apr 19, 1999 | Samson Lone Star LP | Simpton, Zinn & Forman #1 | 7,543 | 16730999 |
| 483793Amendment | Apr 19, 1999 | Apr 19, 1999 | Samson Lone Star LP | Simpton, Zinn & Forman #1 | 7,543 | 16730999 |
| 483522 | Apr 1, 1999 | Apr 1, 1999 | KCS Medallion Resources, Inc. | Dickinson Gas Unit #10 | 7,849 | 16701035 |
| 483576 | Mar 31, 1999 | Mar 31, 1999 | Smith Energy 1986A Partnership | Stewart, Maco "B" #5A | 9,300 | 16731321 |
| 482323 | Jan 28, 1999 | Jan 28, 1999 | Transtexas Gas Corporation | State Tract 331 #5 | 18,000 | 16731320 |
| 482323Amendment | Jan 28, 1999 | Jan 28, 1999 | Transtexas Gas Corporation | State Tract 331 #5 | 18,000 | 16731320 |
| 482323Amendment | Jan 28, 1999 | Jan 28, 1999 | Transtexas Gas Corporation | State Tract 331 #5ST | 18,000 | 16731320 |
| 481246 | Dec 15, 1998 | Dec 15, 1998 | Samedan Oil Corp. -Offshore Div. | S.L. 98157 #1 | 13,006 | 70630221 |
| 481468 | Dec 14, 1998 | Dec 14, 1998 | Transtexas Gas Corporation | San Leon Unit SWD #1 | 7,500 | 16731319 |
| 481468Amendment | Dec 14, 1998 | Dec 14, 1998 | Transtexas Gas Corporation | San Leon Unit SWD #1 | 7,500 | 16731319 |
| 480624 | Nov 13, 1998 | Nov 13, 1998 | Smith Petroleum Company | Galveston Rifle & Pistol Club UT #1 | 8,500 | 16731318 |
| 478959 | Nov 3, 1998 | Nov 3, 1998 | KCS Medallion Resources, Inc. | Bayou Dev. Co. B #16 | 9,400 | 16730662 |
| 480346 | Oct 27, 1998 | Oct 27, 1998 | Tepco, Inc. | Halls Bayou Ranch #9 | 13,500 | 16731317 |
| 479481 | Oct 20, 1998 | Oct 20, 1998 | Callon Petroleum Operating Co | Callon-Hanson #1 | 12,500 | 16731316 |
| 479481Amendment | Oct 20, 1998 | Oct 20, 1998 | Callon Petroleum Operating Co | Callon-Hanson #1 | 12,500 | 16731316 |
| 478594 | Sep 21, 1998 | Sep 21, 1998 | KCS Medallion Resources, Inc. | Dickinson Gas Unit No. 1 #3 | 9,640 | 16701028 |
| 478594Amendment | Sep 21, 1998 | Sep 21, 1998 | KCS Medallion Resources, Inc. | Dickinson Gas Unit No. 1 #3 | 9,640 | 16701028 |
| 479254 | Sep 8, 1998 | Sep 8, 1998 | El Tres Exploration | Cortese Unit #1 | 10,900 | 16731219 |
| 478830 | Aug 19, 1998 | Aug 19, 1998 | Hunt, Hassie Exploration Co. | M. Gilby et al G. U. #2 | 12,000 | 16731315 |
| 478480 | Aug 5, 1998 | Aug 5, 1998 | KCS Medallion Resources, Inc. | Bayou Development Company B #15F | 9,000 | 16702095 |
| 476846 | Aug 3, 1998 | Aug 3, 1998 | KCS Medallion Resources, Inc. | Bayou Development Company B #17 | 8,600 | 16730837 |
| 476846Amendment | Aug 3, 1998 | Aug 3, 1998 | KCS Medallion Resources, Inc. | Bayou Development Company B #17 | 8,600 | 16730837 |
| 477976 | Jul 15, 1998 | Jul 15, 1998 | Transtexas Gas Corporation | State Tract 330 #2 | 18,000 | 16731314 |
| 477976Amendment | Jul 15, 1998 | Jul 15, 1998 | Transtexas Gas Corporation | State Tract 330 #1 | 18,000 | 16731314 |
| 477976Amendment | Jul 15, 1998 | Jul 15, 1998 | Transtexas Gas Corporation | State Tract 330 #1 | 18,000 | 16731314 |
| 477753 | Jul 7, 1998 | Jul 7, 1998 | Samedan Oil Corporation | Evans, W. E. #1 | 9,350 | 16731313 |
| 477264 | Jun 24, 1998 | Jun 24, 1998 | KCS Medallion Resources, Inc. | Dickinson Oil Unit 1 #3 | 9,700 | 16730589 |
| 477033 | Jun 10, 1998 | Jun 10, 1998 | Chain Oil & Gas, Inc. | Algoa Orchard Oil Unit #11 #2 | 9,700 | 16731312 |
| 476579 | Jun 5, 1998 | Jun 5, 1998 | KCS Medallion Resources, Inc. | Bayou B #5 #10 | 9,350 | 16701035 |
| 476579Amendment | Jun 5, 1998 | Jun 5, 1998 | KCS Medallion Resources, Inc. | Dickinson Gas Unit #10 | 7,849 | 16701035 |
| 475895 | May 1, 1998 | May 1, 1998 | Transtexas Gas Corporation | State Tract 331 #4 | 18,000 | 16731310 |
| 475491 | Apr 29, 1998 | Apr 29, 1998 | Texas Independent Explor., Inc. | King, Creston #8 | 7,250 | 16731252 |
| 475214 | Apr 15, 1998 | Apr 15, 1998 | Hunt, Hassie Exploration Co. | Franks/8900 Sand/Unit #501 | 9,518 | 16701410 |
| 475167 | Apr 15, 1998 | Apr 15, 1998 | Samson Lone Star LP | Zinn & Forman #21 | 7,862 | 16730913 |
| 475167Amendment | Apr 15, 1998 | Apr 15, 1998 | Samson Lone Star LP | Zinn & Forman #21 | 7,862 | 16730913 |
| 475166 | Apr 10, 1998 | Apr 10, 1998 | Samson Lone Star LP | Zinn & Forman #1 | 7,583 | 16700918 |