| 544733 | Apr 21, 2004 | Apr 21, 2004 | Total E&P USA, Inc. | Slick, T. B. Estate #142 | 13,000 | 42733724 |
| 544593 | Apr 21, 2004 | Apr 21, 2004 | Smith Production Inc. | Bloomberg, Samuel D. #22 | 11,778 | 42733624 |
| 544507 | Apr 15, 2004 | Apr 15, 2004 | Ascent Energy, Inc | Heard #2 | 10,000 | 42733723 |
| 544354 | Apr 13, 2004 | Apr 13, 2004 | Exxon Mobil Corporation | Howell, J J #8 | 9,780 | 42733353 |
| 543913 | Apr 1, 2004 | Apr 1, 2004 | Smith Production Inc. | Bloomberg, Samuel D. #29 | 13,000 | 42733720 |
| 543913Amendment | Apr 1, 2004 | Apr 1, 2004 | Smith Production Inc. | Bloomberg, Samuel D. #29 | 13,000 | 42733720 |
| 543896 | Mar 31, 2004 | Mar 31, 2004 | Kerr-McGee Oil & Gas Onshore LLC | Garcia, I.Y. #35 | 10,000 | 42733719 |
| 543893 | Mar 31, 2004 | Mar 31, 2004 | Kerr-McGee Oil & Gas Onshore LLC | Slick, T.B. Est.-a- 529 #205 | 8,200 | 42733718 |
| 543887 | Mar 31, 2004 | Mar 31, 2004 | Bass Enterprises Production Co. | Slick-State 886-B #1 | 12,000 | 42733717 |
| 543831 | Mar 30, 2004 | Mar 30, 2004 | Touchstone Resources USA, Inc. | Garcia #1 | 10,000 | 42733716 |
| 543831Amendment | Mar 30, 2004 | Mar 30, 2004 | Touchstone Resources USA, Inc. | Diaz #2 | 10,000 | 42733716 |
| 543831Amendment | Mar 30, 2004 | Mar 30, 2004 | Touchstone Resources USA, Inc. | Diaz #2 | 9,350 | 42733716 |
| 543744 | Mar 30, 2004 | Mar 30, 2004 | Samson Lone Star LP | Guerra Brothers G U #3 | 6,150 | 42732711 |
| 543758 | Mar 29, 2004 | Mar 29, 2004 | El Paso Production Oil & Gas Co. | Flores, O. #1 | 11,500 | 42733623 |
| 543674 | Mar 25, 2004 | Mar 25, 2004 | Newfield Exploration Company | Guerra "D" #1 | 12,000 | 42733715 |
| 543674Amendment | Mar 25, 2004 | Mar 25, 2004 | Newfield Exploration Company | Guerra "D" #1 | 12,000 | 42733715 |
| 543661 | Mar 25, 2004 | Mar 25, 2004 | Hughes, Dan A. Company | Morse #5 | 11,500 | 42733714 |
| 543661Amendment | Mar 25, 2004 | Mar 25, 2004 | Hughes, Dan A. Company | Morse #5ST | 11,500 | 42733714 |
| 543661Amendment | Mar 25, 2004 | Mar 25, 2004 | Hughes, Dan A. Company | Morse #5ST | 10,173 | 42733714 |
| 543601 | Mar 24, 2004 | Mar 24, 2004 | Kerr-McGee Oil & Gas Onshore LLC | Chapotal Land Co. -A- #24 | 4,500 | 42731850 |
| 543473 | Mar 19, 2004 | Mar 19, 2004 | Kerr-McGee Oil & Gas Onshore LLC | Slick, T. B. State "H" 536 #200 #200 | 8,500 | 42733713 |
| 543413 | Mar 18, 2004 | Mar 18, 2004 | Bommer Engineering Co. | Gutierrez #1 | 5,300 | 42733712 |
| 543413Amendment | Mar 18, 2004 | Mar 18, 2004 | Bommer Engineering Co. | Gutierrez #1 | 5,300 | 42733712 |
| 542205 | Mar 16, 2004 | Mar 16, 2004 | Kerr-McGee Oil & Gas Onshore LLC | Slick, T. B. Est. -a- 527 #185 | 5,670 | 42733107 |
| 542540 | Mar 15, 2004 | Mar 15, 2004 | Texas Independent Explor Ltd. | Cameron 137 #1 | 9,204 | 42732438 |
| 543046 | Mar 10, 2004 | Mar 10, 2004 | Richman Petroleum Corp. | Briggs Ranch #1 | 9,000 | 42733711 |
| 543028 | Mar 10, 2004 | Mar 10, 2004 | Ipact | Sanchez #1 | 6,170 | 42732406 |
| 542975 | Mar 9, 2004 | Mar 9, 2004 | Smith Production Inc. | Bloomberg, Samuel D. #28 | 13,000 | 42733710 |
| 542917 | Mar 8, 2004 | Mar 8, 2004 | Trap Rock Oil Company | La Brisa Ranch/State 542 #8 | 4,200 | 42732506 |
| 542881 | Mar 5, 2004 | Mar 5, 2004 | Kerr-McGee Oil & Gas Onshore LLC | Garcia, I.Y #31 | 8,100 | 42733398 |
| 541842 | Mar 5, 2004 | Mar 5, 2004 | Kerr-McGee Oil & Gas Onshore LLC | Slick, T. B. Est. a 485 #204 | 8,200 | 42733706 |
| 542777 | Mar 3, 2004 | Mar 3, 2004 | El Paso Production Oil & Gas Co. | Samano #52 | 12,000 | 42733709 |
| 542640 | Mar 1, 2004 | Mar 1, 2004 | Ascent Energy, Inc | Garza-Hitchcock G.U. #5 | 10,100 | 42733708 |
| 542560 | Feb 26, 2004 | Feb 26, 2004 | Kerr-McGee Oil & Gas Onshore LLC | Slick, T. B. Est. -a- 527 #180 | 8,600 | 42732996 |
| 542504 | Feb 25, 2004 | Feb 25, 2004 | Touchstone Resources USA, Inc. | Diaz #1 | 6,500 | 42733707 |
| 542504Amendment | Feb 25, 2004 | Feb 25, 2004 | Touchstone Resources USA, Inc. | Diaz #1 | 6,500 | 42733707 |
| 542377 | Feb 23, 2004 | Feb 23, 2004 | Kerr-McGee Oil & Gas Onshore LLC | Hall, J.F. - State #27 | 6,730 | 42733419 |
| 542328 | Feb 20, 2004 | Feb 20, 2004 | Kerr-McGee Oil & Gas Onshore LLC | Slick, T. B. Est. -a- 229 #199 | 7,968 | 42733518 |
| 542328Amendment | Feb 20, 2004 | Feb 20, 2004 | Kerr-McGee Oil & Gas Onshore LLC | Slick, T. B. Est. -a- 229 #199 | 7,968 | 42733518 |
| 542115 | Feb 17, 2004 | Feb 17, 2004 | Ascent Energy, Inc | Garza - Hitchcock G.U. #4 | 10,200 | 42733660 |
| 542022 | Feb 13, 2004 | Feb 13, 2004 | Newgulf Petroleum, LLC | Margo #2A | 4,000 | 42733416 |
| 541785 | Feb 12, 2004 | Feb 12, 2004 | Smith Production Inc. | Bloomberg, Samuel D. #18 | 6,844 | 42733102 |
| 541945 | Feb 11, 2004 | Feb 11, 2004 | White Oak Operating Company LLC | R. G. Smith Gas Unit #3 | 5,180 | 42732247 |
| 541803 | Feb 5, 2004 | Feb 5, 2004 | Kerr-McGee Oil & Gas Onshore LLC | Slick, T B Est a 527 #203 | 8,500 | 42733705 |
| 541676 | Feb 5, 2004 | Feb 5, 2004 | El Paso Production Oil & Gas Co. | Richmond #12 | 10,000 | 42733704 |
| 541676Amendment | Feb 5, 2004 | Feb 5, 2004 | El Paso Production Oil & Gas Co. | Richmond #12 | 10,000 | 42733704 |
| 541634 | Feb 4, 2004 | Feb 4, 2004 | Kerr-McGee Oil & Gas Onshore LLC | Slick T B Est a 527 #180 | 8,600 | 42732996 |
| 541564 | Feb 3, 2004 | Feb 3, 2004 | Noble Energy Inc | Martinez -B- #50 | 6,900 | 42733003 |
| 541351 | Jan 29, 2004 | Jan 29, 2004 | El Paso Production Oil & Gas Co. | Guerra-USA Gas Unit "D" #1 | 13,219 | 42732661 |
| 541214 | Jan 29, 2004 | Jan 29, 2004 | Trap Rock Oil Company | La Brisa Ranch 907 #6 | 1,950 | 42733223 |
| 541320 | Jan 28, 2004 | Jan 28, 2004 | Kerr-McGee Oil & Gas Onshore LLC | Slick, T.B. Est.-A-485 #136 | 6,459 | 42704692 |
| 541319 | Jan 28, 2004 | Jan 28, 2004 | Kerr-McGee Oil & Gas Onshore LLC | Garcia L & L Co -C- #14 | 5,600 | 42733216 |
| 541256 | Jan 26, 2004 | Jan 26, 2004 | Integrated Operating Corporation | Heard, J.F.B. #7 A | 4,397 | 42733051 |
| 541210 | Jan 26, 2004 | Jan 26, 2004 | Kerr-McGee Oil & Gas Onshore LLC | Semmes Trust et al "906" #6 | 5,424 | 42733399 |
| 541207 | Jan 26, 2004 | Jan 26, 2004 | Peoples Energy Prod.-TX, L.P. | Guerra Bros. #13 | 10,800 | 42733703 |
| 537423 | Jan 23, 2004 | Jan 23, 2004 | White Oak Operating Company LLC | McLean, Marrs #26 | 3,600 | 42732015 |
| 541064 | Jan 22, 2004 | Jan 22, 2004 | Trap Rock Oil Company | La Brisa Ranch 907 #2 | 4,810 | 42732504 |
| 540895 | Jan 16, 2004 | Jan 16, 2004 | Total E&P USA, Inc. | Slick, T. B. Estate #156 | 13,000 | 42733702 |
| 540895Amendment | Jan 16, 2004 | Jan 16, 2004 | Total E&P USA, Inc. | Slick, T. B. Estate #156 | 13,000 | 42733702 |
| 540891 | Jan 16, 2004 | Jan 16, 2004 | Total E&P USA, Inc. | Slick, T. B. Estate #151 | 13,000 | 42733701 |
| 540846 | Jan 16, 2004 | Jan 16, 2004 | Kerr-McGee Oil & Gas Onshore LLC | Slick, T. B. Est. -a- 527 #182 | 7,642 | 42733081 |
| 540846Amendment | Jan 16, 2004 | Jan 16, 2004 | Kerr-McGee Oil & Gas Onshore LLC | Slick, T. B. Est. -a- 527 #182 | 7,642 | 42733081 |
| 540812 | Jan 15, 2004 | Jan 15, 2004 | Peoples Energy Prod.-TX, L.P. | Villarreal #17 | 11,100 | 42733700 |
| 540461 | Jan 7, 2004 | Jan 7, 2004 | Comstock Oil & Gas, Inc. | Lopez #2 | 5,500 | 42733699 |
| 540461Amendment | Jan 7, 2004 | Jan 7, 2004 | Comstock Oil & Gas, Inc. | Lopez Gas Unit 1 #2 | 5,500 | 42733699 |
| 540453 | Jan 7, 2004 | Jan 7, 2004 | Kerr-McGee Oil & Gas Onshore LLC | Slick, T. B. Est. -a- 485 #150L | 3,931 | 42731191 |
| 555137 | Jan 5, 2004 | Jan 5, 2004 | Carrizo Oil & Gas, Inc. | Hensley-Yturria #1 | 7,356 | 42733120 |
| 555137Amendment | Jan 5, 2004 | Jan 5, 2004 | Carrizo Oil & Gas, Inc. | Hensley-Yturria #1 | 7,356 | 42733120 |
| 540275 | Dec 31, 2003 | Dec 31, 2003 | Headington Oil Company, L.P. | Murch, B. L. #26 | 5,000 | 42733698 |
| 540210 | Dec 30, 2003 | Dec 30, 2003 | Mortimer Production Company | Margo/Pena #4 | 4,400 | 42733697 |
| 540122 | Dec 23, 2003 | Dec 23, 2003 | Newgulf Petroleum, LLC | Margo #3 | 3,214 | 42733387 |
| 539983 | Dec 19, 2003 | Dec 19, 2003 | Kerr-McGee Oil & Gas Onshore LLC | Slick, T. B. Estate -B- 266 #168 | 4,202 | 42731626 |
| 539714 | Dec 19, 2003 | Dec 19, 2003 | Smith Production Inc. | Slick-State #3 | 13,500 | 42733693 |
| 539884 | Dec 18, 2003 | Dec 18, 2003 | Kerr-McGee Oil & Gas Onshore LLC | Slick, T. B. State -B- 528 #199 | 7,800 | 42733696 |
| 539853 | Dec 18, 2003 | Dec 18, 2003 | El Paso Production Oil & Gas Co. | Samano #51 | 10,000 | 42733695 |
| 539846 | Dec 18, 2003 | Dec 18, 2003 | El Paso Production Oil & Gas Co. | Acevedo #1 | 12,000 | 42733694 |
| 539856 | Dec 17, 2003 | Dec 17, 2003 | Headington Oil Company, L.P. | Murch, B. L. #23 | 12,500 | 42733687 |
| 539843 | Dec 17, 2003 | Dec 17, 2003 | Kerr-McGee Oil & Gas Onshore LLC | Semmes Trust et al "906" #7 | 6,645 | 42733408 |
| 539790 | Dec 17, 2003 | Dec 17, 2003 | El Paso Production Oil & Gas Co. | Samano #50 | 13,000 | 42733692 |
| 539744 | Dec 16, 2003 | Dec 16, 2003 | Hughes, Dan A. Company | Morse #4 | 12,500 | 42733691 |
| 539642 | Dec 15, 2003 | Dec 15, 2003 | Metano Energy, LP | Texaco Fee Guerra C #1 | 5,087 | 42732980 |
| 539535 | Dec 10, 2003 | Dec 10, 2003 | Total E&P USA, Inc. | T.B. Slick Estate #149 | 13,000 | 42733690 |
| 539493 | Dec 9, 2003 | Dec 9, 2003 | Peoples Energy Prod.-TX, L.P. | Ferguson, D #5 | 11,500 | 42733689 |
| 539493Amendment | Dec 9, 2003 | Dec 9, 2003 | Peoples Energy Prod.-TX, L.P. | Dresar, Van #1 | 11,500 | 42733689 |
| 539468 | Dec 9, 2003 | Dec 9, 2003 | Kerr-McGee Oil & Gas Onshore LLC | T. B. Slick Est. -a- 265 #202 | 11,000 | 42733688 |
| 539303 | Dec 4, 2003 | Dec 4, 2003 | Kerr-McGee Oil & Gas Onshore LLC | Slick, T. B. Estate -B- 266 #186 | 6,392 | 42732748 |
| 539302 | Dec 4, 2003 | Dec 4, 2003 | Kerr-McGee Oil & Gas Onshore LLC | Slick, T. B. Estate -a- 485 #201 | 9,000 | 42733686 |
| 539302Amendment | Dec 4, 2003 | Dec 4, 2003 | Kerr-McGee Oil & Gas Onshore LLC | Slick, T. B. Estate -a- 485 #201 | 9,000 | 42733686 |
| 539238 | Dec 3, 2003 | Dec 3, 2003 | El Paso Production Oil & Gas Co. | Kent Gas Unit #1 | 12,000 | 42733685 |
| 539238Amendment | Dec 3, 2003 | Dec 3, 2003 | El Paso Production Oil & Gas Co. | Kent Gas Unit #1 | 12,000 | 42733685 |
| 539154 | Dec 2, 2003 | Dec 2, 2003 | Kerr-McGee Oil & Gas Onshore LLC | Hall, J.F. -State #27 | 6,730 | 42733419 |
| 539045 | Nov 25, 2003 | Nov 25, 2003 | Peoples Energy Prod.-TX, L.P. | Villarreal #16 | 10,600 | 42733683 |
| 539045Amendment | Nov 25, 2003 | Nov 25, 2003 | Peoples Energy Prod.-TX, L.P. | Villarreal #16 | 11,300 | 42733683 |
| 538943 | Nov 24, 2003 | Nov 24, 2003 | El Paso Production Oil & Gas Co. | Flores, O. #2 | 12,000 | 42733682 |
| 538913 | Nov 21, 2003 | Nov 21, 2003 | Kerr-McGee Oil & Gas Onshore LLC | Slick, T. B. -a- 229 #177 | 7,050 | 42732853 |
| 538911 | Nov 21, 2003 | Nov 21, 2003 | Kerr-McGee Oil & Gas Onshore LLC | McKinney, A. #32 | 7,800 | 42732122 |
| 538911Amendment | Nov 21, 2003 | Nov 21, 2003 | Kerr-McGee Oil & Gas Onshore LLC | McKinney, A. #32 | 7,800 | 42732122 |
| 538893 | Nov 21, 2003 | Nov 21, 2003 | Shell Western E&P | Judd Estate-State #12 | 11,000 | 42733681 |
| 538893Amendment | Nov 21, 2003 | Nov 21, 2003 | Shell Western E&P | Judd Estate-State #12 | 11,000 | 42733681 |
| 538626 | Nov 20, 2003 | Nov 20, 2003 | White Oak Operating Company LLC | Guerra, Louise #2 | 4,000 | 42704788 |