| 494519 | Apr 27, 2000 | Apr 27, 2000 | Dreyfus, Louis Natural Gas Corp | Brown/Whitehead 41 #2 | 9,000 | 43535128 |
| 494519Amendment | Apr 27, 2000 | Apr 27, 2000 | Dreyfus, Louis Natural Gas Corp | Brown/Whitehead 41 #2 | 9,000 | 43535128 |
| 494517 | Apr 27, 2000 | Apr 27, 2000 | Dreyfus, Louis Natural Gas Corp | Mayer 15 #11 | 8,200 | 43535129 |
| 494256 | Apr 19, 2000 | Apr 19, 2000 | Dreyfus, Louis Natural Gas Corp | Mayer 15 #14 | 8,200 | 43535127 |
| 494255 | Apr 19, 2000 | Apr 19, 2000 | Dreyfus, Louis Natural Gas Corp | Mayer 15 #16 | 8,250 | 43535126 |
| 493487 | Apr 17, 2000 | Apr 17, 2000 | Lynx Energy Company, Inc. | McDermott #6 | 6,500 | 43535110 |
| 493297 | Apr 17, 2000 | Apr 17, 2000 | Dreyfus, Louis Natural Gas Corp | Mayer Ranch "W" #2104 | 8,150 | 43534586 |
| 493297Amendment | Apr 17, 2000 | Apr 17, 2000 | Dreyfus, Louis Natural Gas Corp | Mayer Ranch "W" #2104 | 8,150 | 43534586 |
| 494124 | Apr 14, 2000 | Apr 14, 2000 | Dreyfus, Louis Natural Gas Corp | Pfluger 103 #9 | 5,550 | 43535125 |
| 493974 | Apr 11, 2000 | Apr 11, 2000 | Dreyfus, Louis Natural Gas Corp | Fields 50 #3 | 5,800 | 43535120 |
| 493973 | Apr 11, 2000 | Apr 11, 2000 | Dreyfus, Louis Natural Gas Corp | Pfluger 104 #16 | 5,600 | 43535117 |
| 493972 | Apr 11, 2000 | Apr 11, 2000 | Dreyfus, Louis Natural Gas Corp | Fields 57 #3 | 5,800 | 43535121 |
| 493971 | Apr 11, 2000 | Apr 11, 2000 | Dreyfus, Louis Natural Gas Corp | Fields 49 #4 | 5,800 | 43535122 |
| 493970 | Apr 11, 2000 | Apr 11, 2000 | Dreyfus, Louis Natural Gas Corp | Fields 49 #5 | 5,800 | 43535123 |
| 493969 | Apr 11, 2000 | Apr 11, 2000 | Dreyfus, Louis Natural Gas Corp | Fields 50 #4 | 5,800 | 43535118 |
| 493968 | Apr 11, 2000 | Apr 11, 2000 | Dreyfus, Louis Natural Gas Corp | Fields 58 #7 | 5,800 | 43535124 |
| 493967 | Apr 11, 2000 | Apr 11, 2000 | Dreyfus, Louis Natural Gas Corp | Fields 57 #2 | 5,800 | 43535119 |
| 493860 | Apr 7, 2000 | Apr 7, 2000 | Dreyfus, Louis Natural Gas Corp | Mayer 37 #8 | 8,200 | 43535116 |
| 493859 | Apr 7, 2000 | Apr 7, 2000 | Dreyfus, Louis Natural Gas Corp | Hill-Mayer, Edwin S. Jr. "AA" #3 | 8,250 | 43535115 |
| 493611 | Mar 29, 2000 | Mar 29, 2000 | KCS Medallion Resources, Inc. | Epps, Hattie "D" #4 | 6,400 | 43535114 |
| 493593 | Mar 29, 2000 | Mar 29, 2000 | KCS Medallion Resources, Inc. | Genini #3306 | 5,800 | 43535113 |
| 493560 | Mar 28, 2000 | Mar 28, 2000 | Dreyfus, Louis Natural Gas Corp | Mayer, Minnie H. "B" #103 | 8,250 | 43535111 |
| 493559 | Mar 28, 2000 | Mar 28, 2000 | Dreyfus, Louis Natural Gas Corp | Mayer, Minnie H. "V V V" #1652 | 8,400 | 43535112 |
| 493466 | Mar 24, 2000 | Mar 24, 2000 | Dreyfus, Louis Natural Gas Corp | Pfluger 85 #16 | 5,500 | 43535109 |
| 493465 | Mar 24, 2000 | Mar 24, 2000 | Dreyfus, Louis Natural Gas Corp | Pfluger 85 #17 | 5,450 | 43535108 |
| 493464 | Mar 24, 2000 | Mar 24, 2000 | Dreyfus, Louis Natural Gas Corp | Pfluger 85 #18 | 5,450 | 43535107 |
| 493463 | Mar 24, 2000 | Mar 24, 2000 | Dreyfus, Louis Natural Gas Corp | Pfluger 85 #13 | 5,450 | 43535106 |
| 493306 | Mar 21, 2000 | Mar 21, 2000 | Dreyfus, Louis Natural Gas Corp | McMillian, Leo H. "11" #12 | 5,650 | 43535100 |
| 493305 | Mar 21, 2000 | Mar 21, 2000 | Dreyfus, Louis Natural Gas Corp | Pfluger 103 #10 | 5,550 | 43535099 |
| 493304 | Mar 21, 2000 | Mar 21, 2000 | Dreyfus, Louis Natural Gas Corp | Pfluger 103 #11 | 5,550 | 43535098 |
| 493303 | Mar 21, 2000 | Mar 21, 2000 | Dreyfus, Louis Natural Gas Corp | Pfluger 105 #10 | 5,600 | 43535103 |
| 493302 | Mar 21, 2000 | Mar 21, 2000 | Dreyfus, Louis Natural Gas Corp | Pfluger 105 #16 | 5,600 | 43535102 |
| 493301 | Mar 21, 2000 | Mar 21, 2000 | Dreyfus, Louis Natural Gas Corp | Pfluger 105 #17 | 5,600 | 43535101 |
| 493300 | Mar 21, 2000 | Mar 21, 2000 | Dreyfus, Louis Natural Gas Corp | McMillan, W. B. 10 #13 | 5,650 | 43535104 |
| 493299 | Mar 21, 2000 | Mar 21, 2000 | Dreyfus, Louis Natural Gas Corp | Pfluger 84 #16 | 5,550 | 43535105 |
| 493254 | Mar 20, 2000 | Mar 20, 2000 | KCS Medallion Resources, Inc. | Miers A #1517 | 5,600 | 43535097 |
| 493253 | Mar 20, 2000 | Mar 20, 2000 | KCS Medallion Resources, Inc. | Miers A #1516 | 5,600 | 43535096 |
| 492253 | Mar 20, 2000 | Mar 20, 2000 | Burlington Resources Oil&gas Co. | Ward #50 | 6,660 | 43535084 |
| 493112 | Mar 15, 2000 | Mar 15, 2000 | Dreyfus, Louis Natural Gas Corp | Mayer "1028" #A301 | 8,300 | 43535095 |
| 493111 | Mar 15, 2000 | Mar 15, 2000 | Dreyfus, Louis Natural Gas Corp | Mayer "4" #3 | 8,450 | 43535094 |
| 493110 | Mar 15, 2000 | Mar 15, 2000 | Dreyfus, Louis Natural Gas Corp | Mayer "18" #5 | 8,350 | 43535091 |
| 493109 | Mar 15, 2000 | Mar 15, 2000 | Dreyfus, Louis Natural Gas Corp | Mayer "9" #3 | 8,400 | 43535093 |
| 493108 | Mar 15, 2000 | Mar 15, 2000 | Dreyfus, Louis Natural Gas Corp | Mayer "18" #8 | 8,425 | 43535092 |
| 492742 | Mar 10, 2000 | Mar 10, 2000 | Burlington Resources Oil&gas Co. | Berger #25 | 6,450 | 43535090 |
| 492739 | Mar 6, 2000 | Mar 6, 2000 | EOG Resources, Inc. | Granger Bluff "A" #4202 | 9,300 | 43535089 |
| 492584 | Mar 3, 2000 | Mar 3, 2000 | Lynx Energy Company, Inc. | McDermott #4 | 6,183 | 43534887 |
| 492662 | Mar 2, 2000 | Mar 2, 2000 | Dreyfus, Louis Natural Gas Corp | Jones Ranch #1864 | 7,800 | 43534719 |
| 492456 | Feb 24, 2000 | Feb 24, 2000 | Dreyfus, Louis Natural Gas Corp | Vanderstucken #8105 | 5,450 | 43535088 |
| 492266 | Feb 18, 2000 | Feb 18, 2000 | Dreyfus, Louis Natural Gas Corp | Bee County School Land #2R | 7,450 | 43535085 |
| 492265 | Feb 18, 2000 | Feb 18, 2000 | Dreyfus, Louis Natural Gas Corp | Bee County School Land #10 | 7,500 | 43535086 |
| 492264 | Feb 18, 2000 | Feb 18, 2000 | Dreyfus, Louis Natural Gas Corp | Bee County School Land #11 | 7,500 | 43535087 |
| 492254 | Feb 18, 2000 | Feb 18, 2000 | Burlington Resources Oil&gas Co. | Ward #49 | 6,550 | 43535083 |
| 492046 | Feb 14, 2000 | Feb 14, 2000 | Burlington Resources Oil&gas Co. | Davis #13 | 6,130 | 43535082 |
| 492045 | Feb 14, 2000 | Feb 14, 2000 | Burlington Resources Oil&gas Co. | Davis #11 | 6,150 | 43535081 |
| 492015 | Feb 11, 2000 | Feb 11, 2000 | Burlington Resources Oil&gas Co. | Barton #11 | 6,640 | 43535080 |
| 492014 | Feb 11, 2000 | Feb 11, 2000 | Burlington Resources Oil&gas Co. | Barton #10 | 6,700 | 43535079 |
| 491947 | Feb 10, 2000 | Feb 10, 2000 | Burlington Resources Oil&gas Co. | Deberry "A" #51 | 6,740 | 43535078 |
| 491946 | Feb 10, 2000 | Feb 10, 2000 | Burlington Resources Oil&gas Co. | Deberry "A" #54 | 6,745 | 43535077 |
| 491938 | Feb 9, 2000 | Feb 9, 2000 | Dreyfus, Louis Natural Gas Corp | Mayer #30 | 8,650 | 43535076 |
| 491938Amendment | Feb 9, 2000 | Feb 9, 2000 | Dreyfus, Louis Natural Gas Corp | Mayer #30 | 8,650 | 43535076 |
| 491937 | Feb 9, 2000 | Feb 9, 2000 | Dreyfus, Louis Natural Gas Corp | Bee County School Land #6 | 8,300 | 43535075 |
| 491936 | Feb 9, 2000 | Feb 9, 2000 | Dreyfus, Louis Natural Gas Corp | Mayer #26 | 8,475 | 43535072 |
| 491935 | Feb 9, 2000 | Feb 9, 2000 | Dreyfus, Louis Natural Gas Corp | Mayer #28 | 8,650 | 43535073 |
| 491934 | Feb 9, 2000 | Feb 9, 2000 | Dreyfus, Louis Natural Gas Corp | Mayer #27 | 8,400 | 43535074 |
| 491933 | Feb 9, 2000 | Feb 9, 2000 | Dreyfus, Louis Natural Gas Corp | Mayer #25 | 8,400 | 43535071 |
| 491925 | Feb 9, 2000 | Feb 9, 2000 | Burlington Resources Oil&gas Co. | Meckel #40 | 6,150 | 43535067 |
| 491924 | Feb 9, 2000 | Feb 9, 2000 | Burlington Resources Oil&gas Co. | Meckel #43 | 6,290 | 43535068 |
| 491923 | Feb 9, 2000 | Feb 9, 2000 | Burlington Resources Oil&gas Co. | Meckel #42 | 6,040 | 43535069 |
| 491922 | Feb 9, 2000 | Feb 9, 2000 | Burlington Resources Oil&gas Co. | Meckel #41 | 6,150 | 43535070 |
| 491756 | Feb 4, 2000 | Feb 4, 2000 | Dreyfus, Louis Natural Gas Corp | Canyon Ranch #1316S | 5,450 | 43535065 |
| 491755 | Feb 4, 2000 | Feb 4, 2000 | Dreyfus, Louis Natural Gas Corp | Canyon Ranch #1076A | 5,550 | 43535066 |
| 491754 | Feb 4, 2000 | Feb 4, 2000 | Dreyfus, Louis Natural Gas Corp | Canyon Ranch #8316S | 5,550 | 43535064 |
| 491753 | Feb 4, 2000 | Feb 4, 2000 | Dreyfus, Louis Natural Gas Corp | Mayer #21 | 7,550 | 43535063 |
| 491736 | Feb 3, 2000 | Feb 3, 2000 | Dreyfus, Louis Natural Gas Corp | Canyon Ranch #8314S | 5,550 | 43535062 |
| 491735 | Feb 3, 2000 | Feb 3, 2000 | Dreyfus, Louis Natural Gas Corp | Canyon Ranch #1313S | 5,550 | 43535061 |
| 491734 | Feb 3, 2000 | Feb 3, 2000 | Dreyfus, Louis Natural Gas Corp | Canyon Ranch #1075A | 5,550 | 43535060 |
| 491733 | Feb 3, 2000 | Feb 3, 2000 | Dreyfus, Louis Natural Gas Corp | Canyon Ranch #1314S | 5,450 | 43535059 |
| 491732 | Feb 3, 2000 | Feb 3, 2000 | Dreyfus, Louis Natural Gas Corp | Canyon Ranch #8315S | 5,550 | 43535058 |
| 491731 | Feb 3, 2000 | Feb 3, 2000 | Dreyfus, Louis Natural Gas Corp | Canyon Ranch #1315S | 5,450 | 43535057 |
| 491730 | Feb 3, 2000 | Feb 3, 2000 | Dreyfus, Louis Natural Gas Corp | Canyon Ranch #1074A | 5,550 | 43535056 |
| 491629 | Feb 1, 2000 | Feb 1, 2000 | Rlo Partnership | Allison #1 | 5,251 | 43530021 |
| 491511 | Jan 27, 2000 | Jan 27, 2000 | Dreyfus, Louis Natural Gas Corp | Canyon Ranch #8313S | 5,550 | 43535055 |
| 491510 | Jan 27, 2000 | Jan 27, 2000 | Dreyfus, Louis Natural Gas Corp | Brown/Whitehead 41 #1 | 9,200 | 43535054 |
| 491509 | Jan 27, 2000 | Jan 27, 2000 | Dreyfus, Louis Natural Gas Corp | Mayfield 39 #15 | 8,450 | 43535053 |
| 491508 | Jan 27, 2000 | Jan 27, 2000 | Dreyfus, Louis Natural Gas Corp | Mayer #22 | 7,700 | 43535052 |
| 491422 | Jan 25, 2000 | Jan 25, 2000 | Dreyfus, Louis Natural Gas Corp | Fields 49 #3 | 5,750 | 43535051 |
| 491330 | Jan 21, 2000 | Jan 21, 2000 | Dreyfus, Louis Natural Gas Corp | Canyon Ranch #8304X | 5,400 | 43535050 |
| 491189 | Jan 18, 2000 | Jan 18, 2000 | Dreyfus, Louis Natural Gas Corp | Fields 58 #6 | 5,750 | 43535049 |
| 491188 | Jan 18, 2000 | Jan 18, 2000 | Dreyfus, Louis Natural Gas Corp | Fields 58 #5 | 5,600 | 43535048 |
| 491187 | Jan 18, 2000 | Jan 18, 2000 | Dreyfus, Louis Natural Gas Corp | Canyon Ranch #1312S | 5,500 | 43535047 |
| 490893 | Jan 6, 2000 | Jan 6, 2000 | Dreyfus, Louis Natural Gas Corp | McMillan, Leo H. 108 #16 | 5,650 | 43535046 |
| 490804 | Jan 3, 2000 | Jan 3, 2000 | Dreyfus, Louis Natural Gas Corp | Mayfield 45 #9 | 8,400 | 43535043 |
| 490802 | Jan 3, 2000 | Jan 3, 2000 | Dreyfus, Louis Natural Gas Corp | Hill-Mayer, Minnie H. "A" #3 | 8,300 | 43535044 |
| 490801 | Jan 3, 2000 | Jan 3, 2000 | Dreyfus, Louis Natural Gas Corp | Mayfield 46 #15 | 8,400 | 43535045 |
| 490725 | Dec 29, 1999 | Dec 29, 1999 | Dreyfus, Louis Natural Gas Corp | Shurley 94 #5 | 6,400 | 43535039 |
| 490724 | Dec 29, 1999 | Dec 29, 1999 | Dreyfus, Louis Natural Gas Corp | Shurley 98 #11 | 6,500 | 43535036 |
| 490723 | Dec 29, 1999 | Dec 29, 1999 | Dreyfus, Louis Natural Gas Corp | Fields 21 #8 | 6,100 | 43535038 |
| 490722 | Dec 29, 1999 | Dec 29, 1999 | Dreyfus, Louis Natural Gas Corp | Vanderstucken 82 #1 | 5,500 | 43535037 |
| 490721 | Dec 29, 1999 | Dec 29, 1999 | Dreyfus, Louis Natural Gas Corp | Pfluger 105 #15 | 5,650 | 43535035 |
| 490720 | Dec 29, 1999 | Dec 29, 1999 | Dreyfus, Louis Natural Gas Corp | Richardson 138 #15 | 8,300 | 43535040 |