| 485417 | Jun 23, 1999 | Jun 23, 1999 | Dreyfus, Louis Natural Gas Corp | Pfluger 84 #15 | 5,600 | 43534958 |
| 485416 | Jun 23, 1999 | Jun 23, 1999 | Dreyfus, Louis Natural Gas Corp | Mayer 47 #4 | 8,400 | 43534957 |
| 485415 | Jun 23, 1999 | Jun 23, 1999 | Dreyfus, Louis Natural Gas Corp | Mayer, Minnie H. -D- #302 | 8,300 | 43534956 |
| 485219 | Jun 16, 1999 | Jun 16, 1999 | Dreyfus, Louis Natural Gas Corp | Miers, Allison #7304 | 6,217 | 43533112 |
| 484838 | Jun 14, 1999 | Jun 14, 1999 | Gruy Petroleum Management Co. | Dunbar, Ned #46 | 9,000 | 43534946 |
| 484841 | Jun 11, 1999 | Jun 11, 1999 | Gruy Petroleum Management Co. | Davis "C" #8 | 9,000 | 43534948 |
| 485002 | Jun 9, 1999 | Jun 9, 1999 | Dreyfus, Louis Natural Gas Corp | Shurley 111 #13 | 6,650 | 43534955 |
| 485001 | Jun 9, 1999 | Jun 9, 1999 | Dreyfus, Louis Natural Gas Corp | Reinhardt 6 #8 | 8,450 | 43534954 |
| 484958 | Jun 3, 1999 | Jun 3, 1999 | Dreyfus, Louis Natural Gas Corp | Mayfield 45 #7 | 8,425 | 43534953 |
| 484956 | Jun 3, 1999 | Jun 3, 1999 | Dreyfus, Louis Natural Gas Corp | Shurley 98 #15 | 6,450 | 43534952 |
| 484843 | Jun 3, 1999 | Jun 3, 1999 | Gruy Petroleum Management Co. | Thomson #4 | 9,000 | 43534950 |
| 484843Amendment | Jun 3, 1999 | Jun 3, 1999 | Gruy Petroleum Management Co. | Thomson #4 | 6,600 | 43534950 |
| 484842 | Jun 2, 1999 | Jun 2, 1999 | Gruy Petroleum Management Co. | Davis "C" #7 | 9,000 | 43534949 |
| 484839 | Jun 2, 1999 | Jun 2, 1999 | Gruy Petroleum Management Co. | Dunbar, Ned #45 | 9,000 | 43534947 |
| 484911 | Jun 1, 1999 | Jun 1, 1999 | Dreyfus, Louis Natural Gas Corp | Jones Ranch #304 | 8,075 | 43534951 |
| 484847 | May 27, 1999 | May 27, 1999 | Dreyfus, Louis Natural Gas Corp | Jones Ranch #303 | 8,075 | 43534945 |
| 484760 | May 26, 1999 | May 26, 1999 | Dreyfus, Louis Natural Gas Corp | Shannon 52 #7 | 8,150 | 43534572 |
| 484758 | May 26, 1999 | May 26, 1999 | Dreyfus, Louis Natural Gas Corp | Simmons 72 #4 | 8,050 | 43534568 |
| 484652 | May 21, 1999 | May 21, 1999 | Dreyfus, Louis Natural Gas Corp | Fields 17 #14 | 6,050 | 43534944 |
| 484648 | May 21, 1999 | May 21, 1999 | Dreyfus, Louis Natural Gas Corp | Shurley 99 #12 | 6,450 | 43534943 |
| 484624 | May 18, 1999 | May 18, 1999 | Dreyfus, Louis Natural Gas Corp | Richardson 138 #12 | 8,400 | 43534942 |
| 484495 | May 12, 1999 | May 12, 1999 | Dreyfus, Louis Natural Gas Corp | Shurley 99 #14 | 6,183 | 43534941 |
| 484494 | May 12, 1999 | May 12, 1999 | Dreyfus, Louis Natural Gas Corp | Fields 21 #3 | 6,034 | 43532166 |
| 484493 | May 12, 1999 | May 12, 1999 | Dreyfus, Louis Natural Gas Corp | Ward, Rip "M" #5002 | 8,150 | 43534258 |
| 484295 | May 4, 1999 | May 4, 1999 | Dreyfus, Louis Natural Gas Corp | Hicks 61 #2 | 4,761 | 43531314 |
| 484293 | May 4, 1999 | May 4, 1999 | Dreyfus, Louis Natural Gas Corp | Richardson 4 #6 | 8,550 | 43534939 |
| 484292 | May 4, 1999 | May 4, 1999 | Dreyfus, Louis Natural Gas Corp | Richardson 6 #6 | 8,475 | 43534940 |
| 483899 | Apr 15, 1999 | Apr 15, 1999 | Dreyfus, Louis Natural Gas Corp | Reinhardt 6 #7 | 8,450 | 43534938 |
| 483813 | Apr 12, 1999 | Apr 12, 1999 | Dreyfus, Louis Natural Gas Corp | Mayer 47 #5 | 8,400 | 43534937 |
| 483634 | Mar 31, 1999 | Mar 31, 1999 | Dreyfus, Louis Natural Gas Corp | Pfluger 85 #10 | 5,400 | 43534936 |
| 483633 | Mar 31, 1999 | Mar 31, 1999 | Dreyfus, Louis Natural Gas Corp | Fields 20 #8 | 6,000 | 43534935 |
| 483489 | Mar 29, 1999 | Mar 29, 1999 | KCS Medallion Resources, Inc. | Sawyer 169 #3 | 3,800 | 43533543 |
| 483510 | Mar 26, 1999 | Mar 26, 1999 | Dreyfus, Louis Natural Gas Corp | Pfluger 85 #15 | 5,500 | 43534931 |
| 483509 | Mar 26, 1999 | Mar 26, 1999 | Dreyfus, Louis Natural Gas Corp | Pfluger 84 #13 | 5,500 | 43534932 |
| 483508 | Mar 26, 1999 | Mar 26, 1999 | Dreyfus, Louis Natural Gas Corp | Mayer 38 #4 | 8,150 | 43534933 |
| 483506 | Mar 26, 1999 | Mar 26, 1999 | Dreyfus, Louis Natural Gas Corp | Fields 17 #13 | 6,050 | 43534934 |
| 482988 | Feb 26, 1999 | Feb 26, 1999 | Dreyfus, Louis Natural Gas Corp | Fields 21 #7 | 6,000 | 43534930 |
| 482908 | Feb 23, 1999 | Feb 23, 1999 | Dreyfus, Louis Natural Gas Corp | Sawyer 112 #15 | 6,800 | 43534929 |
| 482850 | Feb 19, 1999 | Feb 19, 1999 | Dreyfus, Louis Natural Gas Corp | Mayer, Minnie H. "C' #2 | 8,250 | 43534928 |
| 482847 | Feb 19, 1999 | Feb 19, 1999 | Dreyfus, Louis Natural Gas Corp | Mayer 37 #10 | 8,500 | 43534926 |
| 482743 | Feb 16, 1999 | Feb 16, 1999 | Dreyfus, Louis Natural Gas Corp | Bloodworth 11 #4 | 9,000 | 43534925 |
| 482694 | Feb 12, 1999 | Feb 12, 1999 | Dreyfus, Louis Natural Gas Corp | Mayfield 46 #12 | 8,400 | 43534924 |
| 482606 | Feb 9, 1999 | Feb 9, 1999 | Dreyfus, Louis Natural Gas Corp | McMillan, Leo H. 108 #15 | 5,500 | 43534921 |
| 482606Amendment | Feb 9, 1999 | Feb 9, 1999 | Dreyfus, Louis Natural Gas Corp | McMillan, Leo H. 108 #15 | 5,550 | 43534921 |
| 482605 | Feb 9, 1999 | Feb 9, 1999 | Dreyfus, Louis Natural Gas Corp | McMillan, Leo H. 108 #14 | 5,500 | 43534923 |
| 482604 | Feb 9, 1999 | Feb 9, 1999 | Dreyfus, Louis Natural Gas Corp | David 109 #11 | 5,600 | 43534922 |
| 482415 | Feb 2, 1999 | Feb 2, 1999 | Dreyfus, Louis Natural Gas Corp | Hill-Mayer, Edwin S. Jr. "E" #4 | 8,075 | 43534919 |
| 482413 | Feb 2, 1999 | Feb 2, 1999 | Dreyfus, Louis Natural Gas Corp | Mayer, Edwing S. Jr. #803 | 8,200 | 43534920 |
| 482309 | Jan 27, 1999 | Jan 27, 1999 | Dreyfus, Louis Natural Gas Corp | Pfluger 105 #11 | 5,450 | 43534915 |
| 482308 | Jan 27, 1999 | Jan 27, 1999 | Dreyfus, Louis Natural Gas Corp | Richardson 135 #6 | 8,400 | 43534913 |
| 482307 | Jan 27, 1999 | Jan 27, 1999 | Dreyfus, Louis Natural Gas Corp | McMillan, Leo H. 108 #12 | 5,550 | 43534917 |
| 482306 | Jan 27, 1999 | Jan 27, 1999 | Dreyfus, Louis Natural Gas Corp | Richardson 139 #5 | 8,500 | 43534916 |
| 482305 | Jan 27, 1999 | Jan 27, 1999 | Dreyfus, Louis Natural Gas Corp | Richardson 4 #5 | 8,500 | 43534914 |
| 482304 | Jan 27, 1999 | Jan 27, 1999 | Dreyfus, Louis Natural Gas Corp | McMillan, Leo H. 108 #13 | 5,550 | 43534918 |
| 482029 | Jan 14, 1999 | Jan 14, 1999 | Dreyfus, Louis Natural Gas Corp | Canyon Ranch #1310S | 5,600 | 43534912 |
| 482028 | Jan 14, 1999 | Jan 14, 1999 | Dreyfus, Louis Natural Gas Corp | Mayer, Minnie H. "KK" #342 | 8,200 | 43534911 |
| 482027 | Jan 14, 1999 | Jan 14, 1999 | Dreyfus, Louis Natural Gas Corp | Pfluger 86 #6 | 5,450 | 43534910 |
| 481885 | Jan 4, 1999 | Jan 4, 1999 | Dreyfus, Louis Natural Gas Corp | Hill-Mayer, Minnie H. "C" #4 | 8,200 | 43534909 |
| 481839 | Dec 29, 1998 | Dec 29, 1998 | Dreyfus, Louis Natural Gas Corp | Mayer, Edwin S. Jr. #1103 | 8,200 | 43534908 |
| 481696 | Dec 21, 1998 | Dec 21, 1998 | Dreyfus, Louis Natural Gas Corp | Canyon Ranch #135S | 5,400 | 43534907 |
| 481695 | Dec 21, 1998 | Dec 21, 1998 | Dreyfus, Louis Natural Gas Corp | Canyon Ranch #137S | 5,450 | 43534906 |
| 480655 | Nov 4, 1998 | Nov 4, 1998 | Range Production Company | Hill, Wess #10 | 9,500 | 43535498 |
| 480655Amendment | Nov 4, 1998 | Nov 4, 1998 | Range Production Company | Hill, Wess #10 | 9,500 | 43535498 |
| 480357 | Oct 21, 1998 | Oct 21, 1998 | Dreyfus, Louis Natural Gas Corp | Shannon 51 #7 | 8,200 | 43534848 |
| 480104 | Oct 19, 1998 | Oct 19, 1998 | Enron Oil & Gas Company | Keene, S. "157" #1 | 9,000 | 43534904 |
| 479489 | Sep 16, 1998 | Sep 16, 1998 | Gruy Petroleum Management Co. | Dunbar, Ned #41 | 7,000 | 43534903 |
| 479391 | Sep 11, 1998 | Sep 11, 1998 | Dreyfus, Louis Natural Gas Corp | McMillan, W. B. 10 #12 | 5,550 | 43534902 |
| 479390 | Sep 11, 1998 | Sep 11, 1998 | Dreyfus, Louis Natural Gas Corp | McMillan, W. B. 10 #11 | 5,550 | 43534901 |
| 479389 | Sep 11, 1998 | Sep 11, 1998 | Dreyfus, Louis Natural Gas Corp | McMillan, W. B. 10 #10 | 5,600 | 43534900 |
| 479388 | Sep 11, 1998 | Sep 11, 1998 | Dreyfus, Louis Natural Gas Corp | Pfluger 104 #15 | 5,500 | 43534899 |
| 479219 | Sep 2, 1998 | Sep 2, 1998 | Dreyfus, Louis Natural Gas Corp | Richardson #605 | 8,450 | 43534898 |
| 479166 | Aug 31, 1998 | Aug 31, 1998 | Dreyfus, Louis Natural Gas Corp | Mayer, Edwin S., Jr. #303 | 8,050 | 43534897 |
| 479165 | Aug 31, 1998 | Aug 31, 1998 | Dreyfus, Louis Natural Gas Corp | Mayer Ranch "M" #1203 | 8,050 | 43534896 |
| 479090 | Aug 28, 1998 | Aug 28, 1998 | Dreyfus, Louis Natural Gas Corp | Hill-Mayer, Edwin S., Jr. "K" #2 | 8,000 | 43534894 |
| 478884 | Aug 20, 1998 | Aug 20, 1998 | Dreyfus, Louis Natural Gas Corp | Hill-Mayer, Edwin S., Jr. "Z" #4 | 8,100 | 43534893 |
| 478854 | Aug 19, 1998 | Aug 19, 1998 | Dreyfus, Louis Natural Gas Corp | Richardson 138 #9 | 8,400 | 43534892 |
| 478827 | Aug 18, 1998 | Aug 18, 1998 | Dreyfus, Louis Natural Gas Corp | Canyon Ranch #8311S | 5,500 | 43534888 |
| 478826 | Aug 18, 1998 | Aug 18, 1998 | Dreyfus, Louis Natural Gas Corp | Canyon Ranch #837S | 5,500 | 43534889 |
| 478825 | Aug 18, 1998 | Aug 18, 1998 | Dreyfus, Louis Natural Gas Corp | Canyon Ranch #839S | 5,500 | 43534890 |
| 478824 | Aug 18, 1998 | Aug 18, 1998 | Dreyfus, Louis Natural Gas Corp | Richardson 138 #8 | 8,300 | 43534891 |
| 478634 | Aug 10, 1998 | Aug 10, 1998 | Leeper Oil Exp. & Prod. Inc. | McDermott #4 | 6,500 | 43534887 |
| 478015 | Jul 21, 1998 | Jul 21, 1998 | Cyclone Exploration, Inc. | Allison "B" #3 | 6,700 | 43534886 |
| 477797 | Jul 21, 1998 | Jul 21, 1998 | Byrd Operating Company | Florence 27 #5 | 6,200 | 43534874 |
| 477798 | Jul 16, 1998 | Jul 16, 1998 | Byrd Operating Company | Hamill, Florence 26 #3 | 6,250 | 43534875 |
| 477941 | Jul 14, 1998 | Jul 14, 1998 | Gruy Petroleum Management Co. | Dunbar, Ned #40 | 7,000 | 43534885 |
| 477940 | Jul 14, 1998 | Jul 14, 1998 | Gruy Petroleum Management Co. | Dunbar, Ned #39 | 7,000 | 43534884 |
| 477939 | Jul 14, 1998 | Jul 14, 1998 | Gruy Petroleum Management Co. | Dunbar, Ned #38 | 7,000 | 43534883 |
| 477938 | Jul 14, 1998 | Jul 14, 1998 | Gruy Petroleum Management Co. | Dunbar, Ned #37 | 7,000 | 43534882 |
| 477937 | Jul 14, 1998 | Jul 14, 1998 | Gruy Petroleum Management Co. | Dunbar, Ned #36 | 7,000 | 43534881 |
| 477936 | Jul 14, 1998 | Jul 14, 1998 | Gruy Petroleum Management Co. | Dunbar, Ned #35 | 7,000 | 43534880 |
| 477935 | Jul 14, 1998 | Jul 14, 1998 | Gruy Petroleum Management Co. | Dunbar, Ned #34 | 7,000 | 43534879 |
| 477934 | Jul 14, 1998 | Jul 14, 1998 | Gruy Petroleum Management Co. | Dunbar, Ned #33 | 7,000 | 43534878 |
| 477933 | Jul 14, 1998 | Jul 14, 1998 | Gruy Petroleum Management Co. | Dunbar, Ned #32 | 7,000 | 43534877 |
| 477833 | Jul 13, 1998 | Jul 13, 1998 | Byrd Operating Company | Hunt 36 #6 | 6,250 | 43534876 |
| 477799 | Jul 10, 1998 | Jul 10, 1998 | Byrd Operating Company | Hunt 33 #6 | 6,250 | 43534873 |
| 477643 | Jul 8, 1998 | Jul 8, 1998 | Kerns O & G, Inc. | Aldwell-McPherson #1 | 8,800 | 43534871 |
| 477732 | Jul 6, 1998 | Jul 6, 1998 | Dreyfus, Louis Natural Gas Corp | Mayer, Edwin S. Jr "S" #4 | 8,250 | 43534872 |
| 477613 | Jul 1, 1998 | Jul 1, 1998 | Lomak Production Company | Hill, Wess #7 | 8,280 | 43533425 |
| 477597 | Jun 30, 1998 | Jun 30, 1998 | Dreyfus, Louis Natural Gas Corp | Mayer, Edwin S. Jr. C #402 | 8,350 | 43534870 |
| 477596 | Jun 30, 1998 | Jun 30, 1998 | Dreyfus, Louis Natural Gas Corp | Mayer, Edwin S Jr. C #303 | 8,050 | 43534867 |