| 488411 | Oct 11, 1999 | Oct 11, 1999 | Corenergy Operating Group, LLC | Lewis Ranch #202532976 | 5,140 |
| 488180 | Oct 4, 1999 | Oct 4, 1999 | Corenergy Operating Group, LLC | Blackburn, L. K. #202532974 | 3,100 |
| 488079 | Sep 30, 1999 | Sep 30, 1999 | Pennzenergy Exp. & Prod., L.L.C. | Npu (Ray -6) #3102500103 | 9,500 |
| 487712 | Sep 17, 1999 | Sep 17, 1999 | Corenergy Operating Group, LLC | Pagel, C. C. #102532973 | 4,800 |
| 486980 | Sep 17, 1999 | Sep 17, 1999 | Pioneer Natural Res. USA, Inc. | Henry Bues Gas Unit #2H02532501 | 13,975 |
| 487587 | Sep 15, 1999 | Sep 15, 1999 | Aurora Resources Corporation | McMillan, Martha Welder #302501295 | 2,718 |
| 487586 | Sep 15, 1999 | Sep 15, 1999 | Aurora Resources Corporation | McMillan, Martha Welder #202501333 | 2,700 |
| 487558 | Sep 14, 1999 | Sep 14, 1999 | Columbus Energy Corp. | Long #402532972 | 13,600 |
| 487558Amendment | Sep 14, 1999 | Sep 14, 1999 | Columbus Energy Corp. | Long #402532972 | 13,600 |
| 487529 | Sep 13, 1999 | Sep 13, 1999 | Republic Resources, LLC, | Hoyer #102532971 | 4,500 |
| 487101 | Sep 13, 1999 | Sep 13, 1999 | Prime Operating Company | Shinn Gas Unit SWD #102532676 | 10,750 |
| 487237 | Sep 2, 1999 | Sep 2, 1999 | Corenergy Operating Group, LLC | Blackburn, L. K. #102532970 | 2,700 |
| 486954 | Aug 27, 1999 | Aug 27, 1999 | Welder-Heyer Energy, Inc. | Wicker, E. H. #B 102532969 | 5,000 |
| 486979 | Aug 25, 1999 | Aug 25, 1999 | Pioneer Natural Res. USA, Inc. | Tomasek Gas Unit #3H02530538 | 14,000 |
| 486979Amendment | Aug 25, 1999 | Aug 25, 1999 | Pioneer Natural Res. USA, Inc. | Tomasek Gas Unit #3H02530538 | 15,592 |
| 486941 | Aug 25, 1999 | Aug 25, 1999 | Tidal Petroleum, Inc. | Federer #102532968 | 4,500 |
| 486941Amendment | Aug 25, 1999 | Aug 25, 1999 | Tidal Petroleum, Inc. | Federer #102532968 | 4,500 |
| 486728 | Aug 17, 1999 | Aug 17, 1999 | Famcor Oil, Inc | Griffith #102532474 | 5,600 |
| 486654 | Aug 13, 1999 | Aug 13, 1999 | Pioneer Natural Res. USA, Inc. | Tomasek Gas Unit #5H02532967 | 13,950 |
| 486490 | Aug 6, 1999 | Aug 6, 1999 | Corenergy Operating Group, LLC | Roark, A. W. #102532966 | 6,000 |
| 486387 | Aug 6, 1999 | Aug 6, 1999 | Welder-Heyer Energy, Inc. | Breidenbach #102532965 | 5,000 |
| 486387Amendment | Aug 6, 1999 | Aug 6, 1999 | Welder-Heyer Energy, Inc. | Breidenbach #102532965 | 5,000 |
| 486368 | Aug 3, 1999 | Aug 3, 1999 | Sonat Exploration Co. - Houston | Dunn #102532964 | 13,500 |
| 485586 | Jul 19, 1999 | Jul 19, 1999 | Welder-Heyer Energy, Inc. | Traylor, C. T. III #102532960 | 5,000 |
| 485586Amendment | Jul 19, 1999 | Jul 19, 1999 | Welder-Heyer Energy, Inc. | Traylor, C. T. III #102532960 | 5,000 |
| 485894 | Jul 16, 1999 | Jul 16, 1999 | Welder-Heyer Energy, Inc. | O'Brien, J. M. III #0502532962 | 5,000 |
| 485832 | Jul 13, 1999 | Jul 13, 1999 | Legacy Oil & Gas, Inc. | La Rose #102532961 | 5,400 |
| 485583 | Jul 1, 1999 | Jul 1, 1999 | Tidal Petroleum, Inc. | Norwell #502532959 | 4,500 |
| 485362 | Jun 23, 1999 | Jun 23, 1999 | Staples, James W. Prod. Co. | Moore, Lon S. #202531828 | 3,700 |
| 485245 | Jun 16, 1999 | Jun 16, 1999 | Bandera Exploration Company | Schoolfield #1A02501742 | 8,864 |
| 485008 | Jun 14, 1999 | Jun 14, 1999 | Felderhoff Production Co. | Duty East #302532957 | 5,500 |
| 485008Amendment | Jun 14, 1999 | Jun 14, 1999 | Felderhoff Production Co. | Duty East #302532957 | 5,310 |
| 485141 | Jun 11, 1999 | Jun 11, 1999 | Pearl, Bill H. Productions, Inc. | Staples, James W. Sr. #102532958 | 4,500 |
| 484999 | Jun 7, 1999 | Jun 7, 1999 | Corenergy Operating Group, LLC | McKinney, F. G. Estate #102532956 | 4,600 |
| 484999Amendment | Jun 7, 1999 | Jun 7, 1999 | Corenergy Operating Group, LLC | McKinney, F. G. Estate #102532956 | 4,900 |
| 484810 | May 27, 1999 | May 27, 1999 | Corenergy Operating Group, LLC | Wilhite, M. E. #102532954 | 5,600 |
| 484809 | May 27, 1999 | May 27, 1999 | Corenergy Operating Group, LLC | Handy, R. E. #102532955 | 2,400 |
| 484809Amendment | May 27, 1999 | May 27, 1999 | Corenergy Operating Group, LLC | Handy, R. E. #102532955 | 2,900 |
| 484809Amendment | May 27, 1999 | May 27, 1999 | Corenergy Operating Group, LLC | Handy, R. E. #102532955 | 2,900 |
| 484560 | May 17, 1999 | May 17, 1999 | Corenergy Operating Group, LLC | Ferrell, D. L. #102532953 | 2,700 |
| 484475 | May 13, 1999 | May 13, 1999 | C & E Operating, Inc. | Hughes, J. W. F. L. P. #202532952 | 5,600 |
| 484414 | May 11, 1999 | May 11, 1999 | C & E Operating, Inc. | O'Brien-Harkins #402532951 | 4,800 |
| 484316 | May 7, 1999 | May 7, 1999 | Welder-Heyer Energy, Inc. | Wicker, E. H. #202532950 | 5,000 |
| 484126 | Apr 26, 1999 | Apr 26, 1999 | Legacy Oil & Gas, Inc. | May #502532949 | 4,150 |
| 484126Amendment | Apr 26, 1999 | Apr 26, 1999 | Apex Energy, Inc. | May #502532949 | 4,150 |
| 483825 | Apr 20, 1999 | Apr 20, 1999 | Enco Exploration Company | Long #102532947 | 4,300 |
| 483794 | Apr 16, 1999 | Apr 16, 1999 | C & E Operating, Inc. | Thomson-Barrow Corp. C #1402532945 | 3,200 |
| 483895 | Apr 15, 1999 | Apr 15, 1999 | Tidal Petroleum, Inc. | Norwell #402532948 | 4,500 |
| 483796 | Apr 14, 1999 | Apr 14, 1999 | CNG Producing Company | Heard, C. E. #102532946 | 9,200 |
| 483755 | Apr 9, 1999 | Apr 9, 1999 | Pennzenergy Exp. & Prod., L.L.C. | Npu (Ray-8) #2902530234 | 7,700 |
| 483683 | Apr 8, 1999 | Apr 8, 1999 | Great Texas Crude Inc. | Thyssen #202532944 | 3,600 |
| 483682 | Apr 8, 1999 | Apr 8, 1999 | Great Texas Crude Inc. | Double Sevens #102532943 | 4,900 |
| 483118 | Apr 6, 1999 | Apr 6, 1999 | Goldston Oil Corp. | Wolters #202532815 | 9,947 |
| 483468 | Mar 24, 1999 | Mar 24, 1999 | Columbus Energy Corp. | Long #302532942 | 10,900 |
| 483468Amendment | Mar 24, 1999 | Mar 24, 1999 | Columbus Energy Corp. | Long #302532942 | 12,700 |
| 483468Amendment | Mar 24, 1999 | Mar 24, 1999 | Columbus Energy Corp. | Long #302532942 | 12,500 |
| 483468Amendment | Mar 24, 1999 | Mar 24, 1999 | Columbus Energy Corp. | Long #3ST02532942 | 12,500 |
| 482878 | Mar 2, 1999 | Mar 2, 1999 | Fredonia Resources Inc. | Heldenfels, F. W. #102532802 | 2,334 |
| 482950 | Mar 1, 1999 | Mar 1, 1999 | C & E Operating, Inc. | O'Brien, J. M. #802532941 | 5,000 |
| 482926 | Feb 25, 1999 | Feb 25, 1999 | C & E Operating, Inc. | O'Brien, J. M. #402532795 | 4,870 |
| 482496 | Feb 9, 1999 | Feb 9, 1999 | Welder-Heyer Energy, Inc. | Obrien, J. M. III #402532940 | 5,000 |
| 482495 | Feb 9, 1999 | Feb 9, 1999 | Welder-Heyer Energy, Inc. | Obrien, Mick & Dick #102532939 | 5,000 |
| 482492 | Feb 9, 1999 | Feb 9, 1999 | Inland Ocean, Inc. | Roberts, Geo. T. Jr. #102532938 | 4,600 |
| 482375 | Feb 1, 1999 | Feb 1, 1999 | Legacy Oil & Gas, Inc. | May #4R02532937 | 5,600 |
| 482358 | Jan 29, 1999 | Jan 29, 1999 | Pennzoil Exploration & Prod. Co. | N.P.U. (Ray 98) #3902532936 | 10,500 |
| 482322 | Jan 29, 1999 | Jan 29, 1999 | C & E Operating, Inc. | Thomson-Barrow Corp. "C" #1302532935 | 6,000 |
| 482322Amendment | Jan 29, 1999 | Jan 29, 1999 | C & E Operating, Inc. | Thomson-Barrow Corp. "C" #1302532935 | 6,010 |
| 482229 | Jan 25, 1999 | Jan 25, 1999 | Discovery Energy Corp. CC | May #402532934 | 5,600 |
| 482167 | Jan 22, 1999 | Jan 22, 1999 | Tidal Petroleum, Inc. | Norwell #302532933 | 4,500 |
| 482167Amendment | Jan 22, 1999 | Jan 22, 1999 | Tidal Petroleum, Inc. | Norwell #302532933 | 4,500 |
| 481992 | Jan 14, 1999 | Jan 14, 1999 | Great Texas Crude Inc. | Midway #302532932 | 5,000 |
| 481991 | Jan 14, 1999 | Jan 14, 1999 | Great Texas Crude Inc. | Royal #202532931 | 4,000 |
| 481577 | Dec 16, 1998 | Dec 16, 1998 | York & Price Petroleum Corp. | Gingerich, George C. #1D02531990 | 2,720 |
| 481577Amendment | Dec 16, 1998 | Dec 16, 1998 | Republic Resources, LLC, | Gingerich, George C. #1D02531990 | 2,720 |
| 481573 | Dec 16, 1998 | Dec 16, 1998 | York & Price Petroleum Corp. | Robinson #2B02531981 | 2,720 |
| 480942 | Nov 17, 1998 | Nov 17, 1998 | Tidal Petroleum, Inc. | Dirks #202532930 | 4,500 |
| 480884 | Nov 16, 1998 | Nov 16, 1998 | Republic Resources, LLC, | Staples, Jr. J. #102532929 | 4,500 |
| 480778 | Nov 12, 1998 | Nov 12, 1998 | Welder-Heyer Energy, Inc. | Welder, R. J. #1 #102532928 | 5,000 |
| 480569 | Nov 12, 1998 | Nov 12, 1998 | C & E Operating, Inc. | Thomson-Barrow Corp. #802532789 | 5,259 |
| 480698 | Nov 10, 1998 | Nov 10, 1998 | Great Texas Crude Inc. | Independence #102532927 | 8,500 |
| 480656 | Nov 4, 1998 | Nov 4, 1998 | Pennzoil Exploration & Prod. Co. | Npu (Ray -9L) #11L02530303 | 7,000 |
| 480592 | Nov 2, 1998 | Nov 2, 1998 | Welder-Heyer Energy, Inc. | Obrien, J. M. III #302532926 | 5,000 |
| 480584 | Oct 30, 1998 | Oct 30, 1998 | Columbus Energy Corp. | Long #202532925 | 11,200 |
| 480377 | Oct 29, 1998 | Oct 29, 1998 | Mesa Chica Corp. | Foster #1S02532921 | 5,000 |
| 480400 | Oct 28, 1998 | Oct 28, 1998 | Prime Operating Company | Chandler #102532922 | 9,300 |
| 480400Amendment | Oct 28, 1998 | Oct 28, 1998 | Prime Operating Company | Chandler Gas Unit #102532922 | 9,100 |
| 480492 | Oct 27, 1998 | Oct 27, 1998 | Carrizo Oil & Gas, Inc. | Ray #102532924 | 4,400 |
| 480491 | Oct 27, 1998 | Oct 27, 1998 | Carrizo Oil & Gas, Inc. | Welder #102532923 | 4,400 |
| 480491Amendment | Oct 27, 1998 | Oct 27, 1998 | Carrizo Oil & Gas, Inc. | Welder #102532923 | 4,400 |
| 480223 | Oct 20, 1998 | Oct 20, 1998 | C & E Operating, Inc. | O'Brien, J. M. #302532791 | 4,630 |
| 480012 | Oct 9, 1998 | Oct 9, 1998 | C & E Operating, Inc. | O'Brien, J. M. #902532920 | 5,000 |
| 479712 | Sep 25, 1998 | Sep 25, 1998 | Strand Energy, L.C. | Sugarek #202532841 | 3,750 |
| 479562 | Sep 18, 1998 | Sep 18, 1998 | Ultra Oil & Gas, Inc. | Simons #102532480 | 14,000 |
| 479270 | Sep 4, 1998 | Sep 4, 1998 | Corenergy Operating Group, LLC | Barnhart #202532919 | 4,800 |
| 479270Amendment | Sep 4, 1998 | Sep 4, 1998 | Corenergy Operating Group, LLC | Barnhart #202532919 | 4,800 |
| 479229 | Sep 3, 1998 | Sep 3, 1998 | Tidal Petroleum, Inc. | Norwell #202532918 | 4,500 |
| 479206 | Sep 3, 1998 | Sep 3, 1998 | C & E Operating, Inc. | Thomson-Barrow Corp. "C" #1202532917 | 6,000 |
| 479205 | Sep 3, 1998 | Sep 3, 1998 | C & E Operating, Inc. | Thomson-Barrow Corp. #2002532916 | 6,000 |
| 479088 | Aug 28, 1998 | Aug 28, 1998 | Sanchez Oil & Gas Corporation | Dirks Unit #102532915 | 15,500 |
| 478971 | Aug 25, 1998 | Aug 25, 1998 | Welder-Heyer Energy, Inc. | Wicker, E. H. #102532914 | 5,100 |