| 509190 | May 18, 2001 | May 18, 2001 | Vintage Petroleum, Inc. | West Ranch -A- #485 | 5,695 | 23931241 |
| 509008 | May 15, 2001 | May 15, 2001 | Petroleum Advisors Int'l., Inc. | Miller #1 | 7,800 | 23933089 |
| 508998 | May 15, 2001 | May 15, 2001 | Allegro Investments, Inc. | Coates #1 | 11,000 | 23933129 |
| 508997 | May 15, 2001 | May 15, 2001 | Sue-Ann Operating, L.C. | Silliman Gas Unit #3 | 6,654 | 23900822 |
| 508969 | May 14, 2001 | May 14, 2001 | United Oil & Minerals L. P. | Watson #1 | 4,500 | 23933128 |
| 508535 | May 4, 2001 | May 4, 2001 | Vintage Petroleum, Inc. | West Ranch -A- #518 | 6,045 | 23932354 |
| 508298 | Apr 27, 2001 | Apr 27, 2001 | Sue-Ann Operating, L.C. | M. L. & I. (242.95) #24 F | 6,850 | 23930250 |
| 508285 | Apr 27, 2001 | Apr 27, 2001 | Gcea, LLC | Dolesh, Minta #B 1 | 3,200 | 23933127 |
| 507808 | Apr 16, 2001 | Apr 16, 2001 | B.W.O.C., Inc. | Miller #2 | 7,800 | 23933126 |
| 507808Amendment | Apr 16, 2001 | Apr 16, 2001 | B.W.O.C., Inc. | Miller #2 | 7,700 | 23933126 |
| 507797 | Apr 16, 2001 | Apr 16, 2001 | Sue-Ann Operating, L.C. | M. L. & I. Gas Unit #21F | 6,550 | 23930048 |
| 507584 | Apr 10, 2001 | Apr 10, 2001 | Allegro Investments, Inc. | Fonville-Janssen #1 | 6,300 | 23933125 |
| 507442 | Apr 10, 2001 | Apr 10, 2001 | Engelke, R. H. | Schuech Oil Unit 9 #1 | 8,270 | 23932142 |
| 507237 | Apr 6, 2001 | Apr 6, 2001 | Chilton Energy | Seale, Sam D. #1 | 5,995 | 23931938 |
| 507341 | Apr 5, 2001 | Apr 5, 2001 | Barrett Brothers Oil & Gas, Inc. | Harrison #1 | 5,300 | 23933124 |
| 507193 | Mar 29, 2001 | Mar 29, 2001 | Vintage Petroleum, Inc. | West Ranch -A- #495 | 5,680 | 23931684 |
| 507190 | Mar 29, 2001 | Mar 29, 2001 | Vintage Petroleum, Inc. | West Ranch -A- #287 | 5,690 | 23902635 |
| 507170 | Mar 29, 2001 | Mar 29, 2001 | North Shore Energy, L.L.C. | Rogers, John #1 | 5,800 | 23933121 |
| 507160 | Mar 29, 2001 | Mar 29, 2001 | Pure Resources, L.P. | Rogers #1 | 11,500 | 23933120 |
| 507160Amendment | Mar 29, 2001 | Mar 29, 2001 | Pure Resources, L.P. | Rogers #1 | 12,500 | 23933120 |
| 507126 | Mar 28, 2001 | Mar 28, 2001 | Pure Resources, L.P. | Babb #3 Sidetrack #1 | 11,500 | 23933011 |
| 506934 | Mar 23, 2001 | Mar 23, 2001 | Sue-Ann Operating, L.C. | McInnis Unit #1 | 7,460 | 23933087 |
| 506498 | Mar 14, 2001 | Mar 14, 2001 | Vintage Petroleum, Inc. | Vanderbilt State #28 | 6,030 | 23930365 |
| 506497 | Mar 14, 2001 | Mar 14, 2001 | Vintage Petroleum, Inc. | Toney, M. H. #66A | 6,768 | 23902876 |
| 506496 | Mar 14, 2001 | Mar 14, 2001 | Vintage Petroleum, Inc. | West Ranch -A- #403 | 5,040 | 23902750 |
| 506072 | Mar 8, 2001 | Mar 8, 2001 | Engelke, R. H. | Schuech E #3 | 7,200 | 23903033 |
| 505794 | Feb 28, 2001 | Feb 28, 2001 | Wagner Oil Company | Fenner #1 | 4,800 | 23933119 |
| 505805 | Feb 26, 2001 | Feb 26, 2001 | Chilton Energy | Seale #2 | 7,528 | 23931999 |
| 505651 | Feb 23, 2001 | Feb 23, 2001 | Marquee Corporation | Goff Mineral Trust #1 | 6,800 | 23933118 |
| 505569 | Feb 20, 2001 | Feb 20, 2001 | Vintage Petroleum, Inc. | West Ranch -A- #336 | 5,970 | 23902683 |
| 505556 | Feb 20, 2001 | Feb 20, 2001 | Vintage Petroleum, Inc. | West Ranch -A- #487 | 6,240 | 23931250 |
| 505245 | Feb 20, 2001 | Feb 20, 2001 | Magnum Producing & Operating Co. | Crossroads #1 | 7,000 | 23933117 |
| 505406 | Feb 15, 2001 | Feb 15, 2001 | Vintage Petroleum, Inc. | West Ranch -A- #347 | 5,670 | 23902694 |
| 505280 | Feb 14, 2001 | Feb 14, 2001 | Allegro Investments, Inc. | L. Ranch #1 | 9,400 | 23933114 |
| 505279 | Feb 14, 2001 | Feb 14, 2001 | Allegro Investments, Inc. | Dugger-Traylor #1 | 9,600 | 23933113 |
| 505277 | Feb 14, 2001 | Feb 14, 2001 | Allegro Investments, Inc. | Cihal #1 | 5,500 | 23933112 |
| 505276 | Feb 14, 2001 | Feb 14, 2001 | Allegro Investments, Inc. | Marthiljohni #1 | 9,000 | 23933116 |
| 505276Amendment | Feb 14, 2001 | Feb 14, 2001 | Allegro Investments, Inc. | Marthiljohni #1 | 9,000 | 23933116 |
| 505275 | Feb 14, 2001 | Feb 14, 2001 | Allegro Investments, Inc. | McColloch Trust #1 | 9,200 | 23933115 |
| 505260 | Feb 13, 2001 | Feb 13, 2001 | Goldking Operating Company, Inc. | Stovall #1 | 8,850 | 23901332 |
| 505155 | Feb 9, 2001 | Feb 9, 2001 | Vintage Petroleum, Inc. | Toney, M. H. Mrs. #33 | 5,975 | 23902843 |
| 504966 | Feb 5, 2001 | Feb 5, 2001 | Vintage Petroleum, Inc. | Toney, M. H. Mrs. #62 | 5,280 | 23902872 |
| 504893 | Feb 2, 2001 | Feb 2, 2001 | Dreyfus, Louis Natural Gas Corp | Ploeger, Leslie #2 | 17,800 | 23933059 |
| 504654 | Jan 29, 2001 | Jan 29, 2001 | Allegro Investments, Inc. | Traylor #2 | 10,000 | 23933111 |
| 504526 | Jan 25, 2001 | Jan 25, 2001 | Vintage Petroleum, Inc. | Toney, M. H. #34 | 6,125 | 23902845 |
| 503953 | Jan 16, 2001 | Jan 16, 2001 | Texas Petroleum Investment Co. | 4-Way Ranch #33 | 8,254 | 23930258 |
| 503975 | Jan 11, 2001 | Jan 11, 2001 | Whittington Operating Company | Kuretsch, Raymond #1A | 5,700 | 23932938 |
| 503865 | Jan 11, 2001 | Jan 11, 2001 | Sue-Ann Operating, L.C. | Hultquist, O. #5H | 7,530 | 23903515 |
| 503927 | Jan 10, 2001 | Jan 10, 2001 | Sue-Ann Operating, L.C. | Mc Innis Unit #3 | 7,550 | 23933110 |
| 503632 | Jan 3, 2001 | Jan 3, 2001 | Bison Energy Partners, Inc. | Babb, T. J. #1U | 7,014 | 23930201 |
| 503518 | Dec 28, 2000 | Dec 28, 2000 | Ventex Operating Corp. | GSR #2 | 10,500 | 23933109 |
| 503510 | Dec 28, 2000 | Dec 28, 2000 | Allegro Investments, Inc. | Kuhlman #1 | 9,600 | 23933108 |
| 503380 | Dec 22, 2000 | Dec 22, 2000 | Synergy Oil & Gas, Inc. (A) | Wiese, Della #10 | 6,416 | 23932294 |
| 503329 | Dec 21, 2000 | Dec 21, 2000 | Marquee Corporation | Stormont Gas Unit #1 | 4,600 | 23933107 |
| 503116 | Dec 15, 2000 | Dec 15, 2000 | Barrett Brothers Oil & Gas, Inc. | Wilbeck #1 | 5,400 | 23933106 |
| 503116Amendment | Dec 15, 2000 | Dec 15, 2000 | Barrett Brothers Oil & Gas, Inc. | Wilbeck #1 | 5,400 | 23933106 |
| 502985 | Dec 13, 2000 | Dec 13, 2000 | Mass Energy, Inc | Vincik, A. #3 | 12,000 | 23933105 |
| 502985Amendment | Dec 13, 2000 | Dec 13, 2000 | Mass Energy, Inc | Vincik, A. #3 | 13,000 | 23933105 |
| 502677 | Dec 6, 2000 | Dec 6, 2000 | Allegro Investments, Inc. | Layden #1 | 10,830 | 23932946 |
| 502096 | Dec 4, 2000 | Dec 4, 2000 | Sedona Oil & Gas Corp. | Mauritz #1 | 9,700 | 23933102 |
| 502423 | Nov 29, 2000 | Nov 29, 2000 | Allegro Investments, Inc. | Johnson Fondation #2 | 5,500 | 23933104 |
| 502423Amendment | Nov 29, 2000 | Nov 29, 2000 | Allegro Investments, Inc. | Johnson Fondation #2 | 5,500 | 23933104 |
| 502415 | Nov 28, 2000 | Nov 28, 2000 | Ken Petroleum Corporation | Hicks #1 | 9,400 | 23932003 |
| 502415Amendment | Nov 28, 2000 | Nov 28, 2000 | Ken Petroleum Corporation | Hicks #1 | 9,400 | 23932003 |
| 501995 | Nov 28, 2000 | Nov 28, 2000 | Manti Operating Company | Strauss, Mike #18 | 7,009 | 23932913 |
| 502277 | Nov 22, 2000 | Nov 22, 2000 | Barrett Brothers Oil & Gas, Inc. | Farris, Della Mae #1 | 4,900 | 23933103 |
| 502034 | Nov 17, 2000 | Nov 17, 2000 | Sue-Ann Operating, L.C. | Tunison, F. V. NCT-1 #22F | 5,540 | 23903605 |
| 501632 | Nov 17, 2000 | Nov 17, 2000 | Kelley Oil Corporation | Anders Gas Unit #2 | 9,517 | 23932672 |
| 501632Amendment | Nov 17, 2000 | Nov 17, 2000 | Kelley Oil Corporation | Anders Gas Unit #2 | 9,517 | 23932672 |
| 501795 | Nov 13, 2000 | Nov 13, 2000 | Johnson & Ernst Operating Co. | Lowrey #1 | 5,300 | 23933101 |
| 501795Amendment | Nov 13, 2000 | Nov 13, 2000 | Johnson & Ernst Operating Co. | Lowrey #1 | 5,300 | 23933101 |
| 499400 | Nov 10, 2000 | Nov 10, 2000 | Vintage Petroleum, Inc. | Toney, M. H., Mrs. #91 | 7,570 | 23932445 |
| 501780 | Nov 9, 2000 | Nov 9, 2000 | Cox & Perkins Exploration, Inc. | Porche #1ST | 10,500 | 23932441 |
| 501564 | Nov 8, 2000 | Nov 8, 2000 | Sue-Ann Operating, L.C. | M L & I Gas Unit #29 | 7,300 | 23930271 |
| 501560 | Nov 8, 2000 | Nov 8, 2000 | Sue-Ann Operating, L.C. | Silliman, L. A. #8F | 7,396 | 23930118 |
| 501513 | Nov 2, 2000 | Nov 2, 2000 | Neumin Production Company | Bussell #1 | 9,500 | 23933100 |
| 501255 | Oct 31, 2000 | Oct 31, 2000 | Sue-Ann Operating, L.C. | Robertson Gas Unit #7F | 5,156 | 23930209 |
| 501272 | Oct 26, 2000 | Oct 26, 2000 | Sue-Ann Operating, L.C. | M & O Gas Unit #6 | 6,460 | 23930245 |
| 500827 | Oct 16, 2000 | Oct 16, 2000 | Pure Resources, L.P. | Scherer, L. P. #1 | 10,000 | 23933058 |
| 499525 | Oct 13, 2000 | Oct 13, 2000 | Ventex Operating Corp. | GSR #1 | 10,300 | 23933090 |
| 499525Amendment | Oct 13, 2000 | Oct 13, 2000 | Ventex Operating Corp. | GSR #1 | 10,300 | 23933090 |
| 500685 | Oct 12, 2000 | Oct 12, 2000 | Barrett Brothers Oil & Gas, Inc. | Wharton #1 | 5,400 | 23933098 |
| 500685Amendment | Oct 12, 2000 | Oct 12, 2000 | Barrett Brothers Oil & Gas, Inc. | Wharton #1 | 5,400 | 23933098 |
| 500653 | Oct 11, 2000 | Oct 11, 2000 | Allegro Investments, Inc. | Wilbeck #2 | 5,500 | 23933097 |
| 500542 | Oct 9, 2000 | Oct 9, 2000 | Whittington Operating Company | Kuretsch, Raymond #2A | 6,273 | 23933017 |
| 500542Amendment | Oct 9, 2000 | Oct 9, 2000 | Whittington Operating Company | Kuretsch, Raymond #2A | 6,273 | 23933017 |
| 500422 | Oct 9, 2000 | Oct 9, 2000 | Barrett Brothers Oil & Gas, Inc. | Shackleford #1 | 5,000 | 23933096 |
| 500388 | Oct 5, 2000 | Oct 5, 2000 | Marquee Corporation | Stafford "A" #1 | 4,200 | 23933095 |
| 500359 | Oct 3, 2000 | Oct 3, 2000 | Miner, R. C. Inc. | Jackson Estate #2D | 5,808 | 23931593 |
| 500196 | Sep 29, 2000 | Sep 29, 2000 | Allegro Investments, Inc. | Sample #2 | 5,800 | 23933093 |
| 500195 | Sep 29, 2000 | Sep 29, 2000 | Allegro Investments, Inc. | Hensley-Johnny #1 | 9,900 | 23933094 |
| 499774 | Sep 20, 2000 | Sep 20, 2000 | Clsog L.C. | McNeil #1F | 5,300 | 23933091 |
| 499788 | Sep 19, 2000 | Sep 19, 2000 | Allegro Investments, Inc. | Young Sisters #1 | 10,800 | 23933092 |
| 499788Amendment | Sep 19, 2000 | Sep 19, 2000 | Allegro Investments, Inc. | Young Sisters #1 | 10,800 | 23933092 |
| 499785 | Sep 19, 2000 | Sep 19, 2000 | Allegro Investments, Inc. | Schaefer-Buckner-HSL #4 | 3,400 | 23932898 |
| 497985 | Sep 19, 2000 | Sep 19, 2000 | Vintage Petroleum, Inc. | Toney, M. H. #37 | 7,330 | 23902847 |
| 499754 | Sep 18, 2000 | Sep 18, 2000 | Vintage Petroleum, Inc. | West Ranch "A" #194 | 6,170 | 23902549 |
| 499753 | Sep 18, 2000 | Sep 18, 2000 | Vintage Petroleum, Inc. | West Ranch "A" #351 | 6,230 | 23902698 |
| 499573 | Sep 15, 2000 | Sep 15, 2000 | Vintage Petroleum, Inc. | West Ranch Unit No. 1 #2 | 7,680 | 23932513 |
| 499572 | Sep 13, 2000 | Sep 13, 2000 | Vintage Petroleum, Inc. | West Ranch A #349 | 6,000 | 23902696 |