| 508446Amendment | May 2, 2001 | May 2, 2001 | Conoco Inc. | Bruni Ranch #62 | 12,900 | 47937800 |
| 508444 | May 2, 2001 | May 2, 2001 | Conoco Inc. | Hein Trust B #8 | 11,200 | 47937799 |
| 508412 | May 2, 2001 | May 2, 2001 | Kerns O & G, Inc. | Petty Ranch #401 | 5,600 | 47937798 |
| 508330 | May 1, 2001 | May 1, 2001 | Kerns O & G, Inc. | Gates Ranch "B" #6035 | 5,900 | 47934386 |
| 508360 | Apr 30, 2001 | Apr 30, 2001 | Michael Petroleum Corporation | Gill, F. J. #11 | 11,000 | 47937795 |
| 508279 | Apr 27, 2001 | Apr 27, 2001 | Conoco Inc. | Vaquillas Ranch A3 #199 | 9,400 | 47937794 |
| 508279Amendment | Apr 27, 2001 | Apr 27, 2001 | Conoco Inc. | Vaquillas Ranch A3 #199 | 9,400 | 47937794 |
| 508101 | Apr 27, 2001 | Apr 27, 2001 | Virtex Petroleum Company, Inc. | Briscoe "F" #203 | 5,000 | 47937792 |
| 508220 | Apr 26, 2001 | Apr 26, 2001 | Conoco Inc. | Kaiser State 18 #1 | 12,000 | 47937793 |
| 508216 | Apr 25, 2001 | Apr 25, 2001 | Lewis Petro Properties, Inc. | Barreda #7 | 7,000 | 47937791 |
| 506680 | Apr 24, 2001 | Apr 24, 2001 | Conoco Inc. | B.M.T. #146 | 12,300 | 47937758 |
| 508061 | Apr 23, 2001 | Apr 23, 2001 | Conoco Inc. | Vaquillas Ranch A #198 | 11,800 | 47937790 |
| 508061Amendment | Apr 23, 2001 | Apr 23, 2001 | Conoco Inc. | Vaquillas Ranch A1 #198 | 11,800 | 47937790 |
| 508060 | Apr 23, 2001 | Apr 23, 2001 | Lewis Petro Properties, Inc. | Barreda 34 #8 | 8,000 | 47937789 |
| 507928 | Apr 20, 2001 | Apr 20, 2001 | Kerns O & G, Inc. | Gates Ranch #2993 | 6,000 | 47937628 |
| 507925 | Apr 20, 2001 | Apr 20, 2001 | Kerns O & G, Inc. | Petty Ranch #1227 | 5,600 | 47937788 |
| 507925Amendment | Apr 20, 2001 | Apr 20, 2001 | Kerns O & G, Inc. | Petty Ranch #1227 | 5,600 | 47937788 |
| 507921 | Apr 18, 2001 | Apr 18, 2001 | Lewis Petro Properties, Inc. | Palafox 2182 E #29 | 9,000 | 47937787 |
| 507921Amendment | Apr 18, 2001 | Apr 18, 2001 | Lewis Petro Properties, Inc. | Palafox 2182 - 8 E #29 | 9,000 | 47937787 |
| 507902 | Apr 18, 2001 | Apr 18, 2001 | Conoco Inc. | Frost Trust 15 #1 | 11,180 | 47937785 |
| 507897 | Apr 18, 2001 | Apr 18, 2001 | Conoco Inc. | Benavides, Gloria BMT A #4 | 10,800 | 47937786 |
| 507861 | Apr 17, 2001 | Apr 17, 2001 | Eex Operating, L.P. | Alley #11 | 12,000 | 47937784 |
| 507726 | Apr 17, 2001 | Apr 17, 2001 | Kerns O & G, Inc. | Gates Ranch "Y" #3012T | 2,900 | 47937783 |
| 507846 | Apr 16, 2001 | Apr 16, 2001 | Peak Energy Corporation | Benavides #35 | 7,500 | 47937782 |
| 507819 | Apr 16, 2001 | Apr 16, 2001 | EOG Resources, Inc. | BMT/K&H "D" #6 | 12,100 | 47937781 |
| 507768 | Apr 13, 2001 | Apr 13, 2001 | Cody Energy LLC | Benavides, Rosa V. -C- #6 | 9,269 | 47937332 |
| 507725 | Apr 13, 2001 | Apr 13, 2001 | Kerns O & G, Inc. | Gates Ranch "W" #1234 | 5,900 | 47937471 |
| 507670 | Apr 11, 2001 | Apr 11, 2001 | Conoco Inc. | Hirsch Estate No. 1954 #1 | 9,300 | 47937779 |
| 507670Amendment | Apr 11, 2001 | Apr 11, 2001 | Conoco Inc. | Hirsch Estate No. 1954 #1 | 9,300 | 47937779 |
| 507644 | Apr 11, 2001 | Apr 11, 2001 | Conoco Inc. | Carr #133 | 9,700 | 47937778 |
| 507563 | Apr 11, 2001 | Apr 11, 2001 | Fasken Oil and Ranch, Ltd. | Palafox Exploration Co. -15- #1 | 5,881 | 47931061 |
| 507639 | Apr 10, 2001 | Apr 10, 2001 | Michael Petroleum Corporation | Villarreal #1 | 9,500 | 47937777 |
| 507638 | Apr 10, 2001 | Apr 10, 2001 | Michael Petroleum Corporation | Bruni-Summers #17 | 11,000 | 47937776 |
| 507596 | Apr 10, 2001 | Apr 10, 2001 | EOG Resources, Inc. | Villarreal #5 | 8,150 | 47937621 |
| 507546 | Apr 9, 2001 | Apr 9, 2001 | Conoco Inc. | B.M.T. D #1 | 11,950 | 47937775 |
| 507530 | Apr 6, 2001 | Apr 6, 2001 | EOG Resources, Inc. | McGrath #1 | 12,400 | 47937774 |
| 507210 | Apr 5, 2001 | Apr 5, 2001 | Kerns O & G, Inc. | Gates Ranch "Y" #4015T | 2,900 | 47937773 |
| 507017 | Apr 3, 2001 | Apr 3, 2001 | Crimson Energy Company, LC | Briscoe "E" #109 | 6,100 | 47937767 |
| 507268 | Apr 2, 2001 | Apr 2, 2001 | Conoco Inc. | Anb Cattle Co. State #1 | 9,100 | 47937772 |
| 507268Amendment | Apr 2, 2001 | Apr 2, 2001 | Conoco Inc. | Anb Cattle Co. State #1 | 9,100 | 47937772 |
| 507266 | Apr 2, 2001 | Apr 2, 2001 | Conoco Inc. | Benavides, Rosa V. A3 #81 | 7,800 | 47937771 |
| 507265 | Apr 2, 2001 | Apr 2, 2001 | Conoco Inc. | Hirsch Estate 2093 #5 | 9,450 | 47937770 |
| 507264 | Apr 2, 2001 | Apr 2, 2001 | Conoco Inc. | Bruni Ranch #93 | 10,900 | 47937769 |
| 507015 | Apr 2, 2001 | Apr 2, 2001 | Crimson Energy Company, LC | Briscoe "E" #101 | 5,990 | 47937768 |
| 506891 | Mar 27, 2001 | Mar 27, 2001 | 3TEC Energy Corporation | Rettig, Mabel #40 | 7,600 | 47937762 |
| 506732 | Mar 27, 2001 | Mar 27, 2001 | CD Resources Company | Booth, W. V. #8 | 6,900 | 47937760 |
| 507037 | Mar 26, 2001 | Mar 26, 2001 | Michael Petroleum Corporation | M.M.A. Cattle Co. #9 | 11,500 | 47937765 |
| 507035 | Mar 26, 2001 | Mar 26, 2001 | Michael Petroleum Corporation | Bruni-Summers #19 | 11,000 | 47937766 |
| 506927 | Mar 23, 2001 | Mar 23, 2001 | EOG Resources, Inc. | BMT/K&H "C" #4 | 11,700 | 47937764 |
| 506903 | Mar 23, 2001 | Mar 23, 2001 | Conoco Inc. | Hein Trust #13 | 11,600 | 47937763 |
| 506903Amendment | Mar 23, 2001 | Mar 23, 2001 | Conoco Inc. | Hein Trust #13 | 11,600 | 47937763 |
| 506848 | Mar 22, 2001 | Mar 22, 2001 | Lewis Petro Properties, Inc. | San Ambrosia A #3 | 5,000 | 47937761 |
| 506720 | Mar 21, 2001 | Mar 21, 2001 | Kerns O & G, Inc. | Gates Ranch "Y" #4015 | 5,900 | 47937759 |
| 506567 | Mar 16, 2001 | Mar 16, 2001 | Conoco Inc. | B.M.T. #140 | 11,750 | 47937757 |
| 506566 | Mar 16, 2001 | Mar 16, 2001 | Conoco Inc. | Tex-Mex RR Co. 599 #4 #4 | 10,000 | 47937756 |
| 506525 | Mar 15, 2001 | Mar 15, 2001 | Conoco Inc. | Frost Trust 13 #1 | 11,470 | 47937755 |
| 506524 | Mar 15, 2001 | Mar 15, 2001 | Conoco Inc. | B.M.T. #121 | 11,600 | 47937409 |
| 506523 | Mar 15, 2001 | Mar 15, 2001 | Conoco Inc. | Hirsch Estate 537 #4 | 9,050 | 47936870 |
| 506483 | Mar 15, 2001 | Mar 15, 2001 | Chevron U. S. A. Inc. | Pena, Helen L. #1 | 8,550 | 47933116 |
| 506250 | Mar 9, 2001 | Mar 9, 2001 | Conoco Inc. | Dix Ranch State E #2 | 8,600 | 47937754 |
| 506249 | Mar 8, 2001 | Mar 8, 2001 | Conoco Inc. | Hein Trust B #10 | 11,100 | 47937753 |
| 506205 | Mar 8, 2001 | Mar 8, 2001 | EOG Resources, Inc. | BMT/ K&H "V" #1 | 12,000 | 47937752 |
| 506150 | Mar 7, 2001 | Mar 7, 2001 | Conoco Inc. | Lundell E #2 | 11,150 | 47937751 |
| 506150Amendment | Mar 7, 2001 | Mar 7, 2001 | Conoco Inc. | Lundell E #2 | 17,100 | 47937751 |
| 506026 | Mar 5, 2001 | Mar 5, 2001 | Kerns O & G, Inc. | Petty Ranch #9021 | 5,500 | 47937750 |
| 505901 | Feb 28, 2001 | Feb 28, 2001 | Lewis Petro Properties, Inc. | Brask 2182 #1 | 9,000 | 47937749 |
| 505901Amendment | Feb 28, 2001 | Feb 28, 2001 | Lewis Petro Properties, Inc. | Brask 2182 #1 | 9,000 | 47937749 |
| 505739 | Feb 28, 2001 | Feb 28, 2001 | Killam Oil Co., Ltd. | Bruni Summers #14 | 11,000 | 47937748 |
| 505566 | Feb 20, 2001 | Feb 20, 2001 | Michael Petroleum Corporation | Rottersman #38 | 11,000 | 47937747 |
| 505416 | Feb 16, 2001 | Feb 16, 2001 | Conoco Inc. | Despain, W. 38 #1 | 11,800 | 47937746 |
| 505343 | Feb 15, 2001 | Feb 15, 2001 | Lewis Petro Properties, Inc. | Palafox 2182 #41 | 9,000 | 47937744 |
| 505342 | Feb 15, 2001 | Feb 15, 2001 | Lewis Petro Properties, Inc. | Palafox 2182 #22 | 9,000 | 47937743 |
| 505341 | Feb 15, 2001 | Feb 15, 2001 | Lewis Petro Properties, Inc. | Palafox 2182 E #39 | 9,000 | 47937742 |
| 505330 | Feb 15, 2001 | Feb 15, 2001 | Conoco Inc. | Huisache Cattle Company #1 | 11,450 | 47937745 |
| 505243 | Feb 15, 2001 | Feb 15, 2001 | Killam Oil Co., Ltd. | J. C. Martin III "a" Gas Unit #6 | 9,720 | 47936802 |
| 505272 | Feb 14, 2001 | Feb 14, 2001 | Conoco Inc. | Frost Trust 9 #1 | 11,600 | 47937741 |
| 505257 | Feb 13, 2001 | Feb 13, 2001 | Conoco Inc. | Dix Ranch D 523 #6 | 9,038 | 47937740 |
| 505176 | Feb 12, 2001 | Feb 12, 2001 | Lewis Petro Properties, Inc. | Palafox 47 #5B | 9,000 | 47937739 |
| 505003 | Feb 9, 2001 | Feb 9, 2001 | Killam Oil Co., Ltd. | Perez, J. C. Heirs "1007" #2 | 9,000 | 47937738 |
| 505042 | Feb 7, 2001 | Feb 7, 2001 | Michael Petroleum Corporation | Martin, S. J. #B 8 | 11,000 | 47937737 |
| 505041 | Feb 7, 2001 | Feb 7, 2001 | Lewis Petro Properties, Inc. | Gates "N" #135A | 6,000 | 47937736 |
| 504922 | Feb 7, 2001 | Feb 7, 2001 | Kerns O & G, Inc. | Petty Ranch #8019 | 5,500 | 47937734 |
| 504993 | Feb 6, 2001 | Feb 6, 2001 | EOG Resources, Inc. | Frost Trust 45 #2 | 10,800 | 47937735 |
| 504290 | Feb 6, 2001 | Feb 6, 2001 | Southern Royalty Inc. | Adami #1 | 2,450 | 47937732 |
| 504960 | Feb 5, 2001 | Feb 5, 2001 | EOG Resources, Inc. | BMT/K&H "X" #3 | 12,100 | 47937733 |
| 504839 | Feb 5, 2001 | Feb 5, 2001 | Conoco Inc. | Frost National Bank #77 | 11,500 | 47937731 |
| 504800 | Feb 5, 2001 | Feb 5, 2001 | Basic Earth Science Systems,inc. | Benavides, S. S. #1 | 2,557 | 47901476 |
| 504468 | Feb 5, 2001 | Feb 5, 2001 | Duke Energy Intrast. Network LLC | LL16-Mainline Hirsch Lease #37 | 270 | 47937721 |
| 504771 | Jan 31, 2001 | Jan 31, 2001 | Eex Operating, L.P. | Alley #10 | 12,000 | 47937726 |
| 504765 | Jan 31, 2001 | Jan 31, 2001 | Conoco Inc. | B.M.T. #89 | 10,900 | 47937727 |
| 504763 | Jan 31, 2001 | Jan 31, 2001 | Conoco Inc. | Frost National Bank #78 | 11,100 | 47937728 |
| 504761 | Jan 31, 2001 | Jan 31, 2001 | Conoco Inc. | Saldivar Estate #31 | 12,250 | 47937730 |
| 504760 | Jan 31, 2001 | Jan 31, 2001 | Conoco Inc. | B.M.T. #137 | 12,600 | 47937729 |
| 504692 | Jan 31, 2001 | Jan 31, 2001 | Conoco Inc. | Saldivar Estate #30 | 12,200 | 47937725 |
| 504692Amendment | Jan 31, 2001 | Jan 31, 2001 | Conoco Inc. | Saldivar Estate #30 | 12,200 | 47937725 |
| 504701 | Jan 30, 2001 | Jan 30, 2001 | Michael Petroleum Corporation | Rottersman #36 | 11,000 | 47937724 |
| 504676 | Jan 29, 2001 | Jan 29, 2001 | Michael Petroleum Corporation | Martin, S. J. #B 9 | 11,000 | 47937723 |
| 504593 | Jan 26, 2001 | Jan 26, 2001 | Michael Petroleum Corporation | E. G. Ranch #2 | 10,500 | 47937722 |
| 504593Amendment | Jan 26, 2001 | Jan 26, 2001 | Michael Petroleum Corporation | E. G. Ranch #2 | 10,500 | 47937722 |
| 504542 | Jan 25, 2001 | Jan 25, 2001 | Michael Petroleum Corporation | Santos #5 | 10,268 | 47937591 |