| 524574Amendment | Oct 11, 2002 | Oct 11, 2002 | Tucker Operating Co., Inc. | MMR #1 | 5,700 | 23933184 |
| 524414 | Oct 7, 2002 | Oct 7, 2002 | Strand Energy, L.C. | Wedig #1 | 7,600 | 23933183 |
| 524241 | Oct 2, 2002 | Oct 2, 2002 | Sue-Ann Operating, L.C. | Strauss #24 | 6,468 | 23933177 |
| 523549 | Sep 12, 2002 | Sep 12, 2002 | Wagner Oil Company | Cook-Fenner Gas Unit #1R | 6,800 | 23932988 |
| 523413 | Sep 5, 2002 | Sep 5, 2002 | Chaparral (USA) Energy, Inc. | Scherer #2 | 6,700 | 23933181 |
| 523006 | Aug 21, 2002 | Aug 21, 2002 | Clsog L.C. | McNeil #1F | 5,024 | 23933091 |
| 522823 | Aug 16, 2002 | Aug 16, 2002 | Allegro Investments, Inc. | Big Twelve #1 | 12,800 | 23933180 |
| 522822 | Aug 16, 2002 | Aug 16, 2002 | Sue-Ann Operating, L.C. | Janica #1 | 7,620 | 23932734 |
| 521919 | Aug 7, 2002 | Aug 7, 2002 | Petro-Hunt, L.L.C. | Stormont Gas Unit #2 | 2,605 | 23932778 |
| 522350 | Jul 30, 2002 | Jul 30, 2002 | Allegro Investments, Inc. | Lakeside #1 | 5,700 | 23933133 |
| 522077 | Jul 22, 2002 | Jul 22, 2002 | Penn Virginia Oil & Gas Corp. | Hamons, Dan #3 | 6,411 | 23932452 |
| 522070 | Jul 22, 2002 | Jul 22, 2002 | Vintage Petroleum, Inc. | West Ranch -A- #472 | 5,850 | 23930176 |
| 521801 | Jul 12, 2002 | Jul 12, 2002 | Sue-Ann Operating, L.C. | McInnis #2 | 7,100 | 23933083 |
| 521752 | Jul 10, 2002 | Jul 10, 2002 | Allegro Investments, Inc. | Truck Stop #1 | 14,300 | 23933179 |
| 521489 | Jul 1, 2002 | Jul 1, 2002 | Sue-Ann Operating, L.C. | Strauss #25 | 8,300 | 23933178 |
| 521356 | Jun 27, 2002 | Jun 27, 2002 | Texas Petroleum Investment Co. | Four Way Ranch #33 | 8,254 | 23930258 |
| 520897 | Jun 12, 2002 | Jun 12, 2002 | Sue-Ann Operating, L.C. | Strauss #24 | 8,300 | 23933177 |
| 520471 | May 29, 2002 | May 29, 2002 | Magnum Producing & Operating Co. | Miller-Shull #1 | 3,500 | 23933176 |
| 520045 | May 20, 2002 | May 20, 2002 | Ffa Petroleum Services, Inc. | Westhoff, W. T. #1 | 7,314 | 23931614 |
| 520030 | May 15, 2002 | May 15, 2002 | United Oil & Minerals L. P. | Wearden #2 | 5,500 | 23933174 |
| 519576 | May 15, 2002 | May 15, 2002 | Penn Virginia Oil & Gas Corp. | Wiese, Della #11 | 6,424 | 23932491 |
| 519522 | May 2, 2002 | May 2, 2002 | Cox & Perkins Exploration, Inc. | Porche No. 1 Gas Unit #2 | 10,630 | 23932803 |
| 518661 | Mar 28, 2002 | Mar 28, 2002 | Allegro Investments, Inc. | Yaussi #1 | 7,500 | 23933173 |
| 518489 | Mar 26, 2002 | Mar 26, 2002 | Marquee Corporation | Stafford "A" #2 | 7,400 | 23933172 |
| 518498 | Mar 22, 2002 | Mar 22, 2002 | Chaparral (USA) Energy, Inc. | Fenner "B" #1 | 3,729 | 23932680 |
| 518217 | Mar 11, 2002 | Mar 11, 2002 | Penn Virginia Oil & Gas Corp. | Cravens, J. R. #1 | 3,850 | 23900583 |
| 518126 | Mar 6, 2002 | Mar 6, 2002 | Magnum Producing & Operating Co. | Crossroads #1 | 6,510 | 23933117 |
| 517839 | Feb 25, 2002 | Feb 25, 2002 | Express Oil Co. | Smith, Alice B. #4 | 2,100 | 23933171 |
| 517805 | Feb 22, 2002 | Feb 22, 2002 | Pure Resources, L.P. | Babb #5 | 6,200 | 23933170 |
| 517148 | Feb 22, 2002 | Feb 22, 2002 | Vintage Petroleum, Inc. | West Ranch A #349 | 5,670 | 23902696 |
| 517637 | Feb 15, 2002 | Feb 15, 2002 | Goldston Oil Corp. | Bertha Dell McDowell Unit #4 | 6,450 | 23931410 |
| 517465 | Feb 8, 2002 | Feb 8, 2002 | Chaparral (USA) Energy, Inc. | Smith, Alma #1 | 4,700 | 23932776 |
| 517404 | Feb 7, 2002 | Feb 7, 2002 | Ampak Oil Company | Jansky Unit #2 | 3,500 | 23933169 |
| 515356 | Feb 7, 2002 | Feb 7, 2002 | Tejones Operating Corporation | Wearden Ranch #1 | 4,200 | 23932999 |
| 517363 | Feb 5, 2002 | Feb 5, 2002 | Vintage Petroleum, Inc. | West Ranch -A- #505 | 5,750 | 23932012 |
| 517274 | Feb 1, 2002 | Feb 1, 2002 | Chaparral (USA) Energy, Inc. | Burns #1 | 4,712 | 23932649 |
| 517078 | Jan 24, 2002 | Jan 24, 2002 | Sue-Ann Operating, L.C. | Strauss, Mike #10 | 5,191 | 23901196 |
| 517012 | Jan 22, 2002 | Jan 22, 2002 | Allegro Investments, Inc. | Long Beach #1 | 19,000 | 23933168 |
| 516899 | Jan 17, 2002 | Jan 17, 2002 | Sue-Ann Operating, L.C. | Strauss, Mike #21 | 5,350 | 23933041 |
| 516709 | Jan 9, 2002 | Jan 9, 2002 | Hilcorp Energy Company | Novian, A. F. Gas Unit No. 1 #2 | 7,900 | 23933072 |
| 515968 | Dec 13, 2001 | Dec 13, 2001 | Sue-Ann Operating, L.C. | Ml&i Gas Unit #32 | 5,030 | 23932227 |
| 515731 | Nov 30, 2001 | Nov 30, 2001 | Gulfstar Properties, Inc. | Goff Unit #2 | 4,500 | 23933167 |
| 515731Amendment | Nov 30, 2001 | Nov 30, 2001 | Gulfstar Properties, Inc. | Goff Unit #2 | 4,500 | 23933167 |
| 515641 | Nov 27, 2001 | Nov 27, 2001 | Sue-Ann Operating, L.C. | Kallus Gas Unit #1 | 7,550 | 23933166 |
| 515640 | Nov 27, 2001 | Nov 27, 2001 | Sue-Ann Operating, L.C. | Coppinger Gas Unit #1 | 6,100 | 23933165 |
| 515436 | Nov 16, 2001 | Nov 16, 2001 | Sue-Ann Operating, L.C. | McInnis Unit #1 | 7,330 | 23933087 |
| 515306 | Nov 13, 2001 | Nov 13, 2001 | Pure Resources, L.P. | Babb #4 | 14,500 | 23933164 |
| 515290 | Nov 12, 2001 | Nov 12, 2001 | Sue-Ann Operating, L.C. | Gayle, Alberta #12 | 7,000 | 23932996 |
| 515290Amendment | Nov 12, 2001 | Nov 12, 2001 | Sue-Ann Operating, L.C. | Gayle, Alberta #12 | 7,000 | 23932996 |
| 514887 | Oct 30, 2001 | Oct 30, 2001 | Sue-Ann Operating, L.C. | McInnis #2 | 7,100 | 23933083 |
| 514774 | Oct 25, 2001 | Oct 25, 2001 | Sue-Ann Operating, L.C. | Strauss, Mike #20 | 6,510 | 23932982 |
| 514705 | Oct 23, 2001 | Oct 23, 2001 | McGowan Working Partners, Inc. | Bennett, John M. "B-F" #4 | 7,100 | 23930511 |
| 514405 | Oct 17, 2001 | Oct 17, 2001 | Gcea, LLC | Goff #2 | 4,500 | 23933163 |
| 514414 | Oct 12, 2001 | Oct 12, 2001 | Gcea, LLC | Goff #1 | 4,500 | 23933162 |
| 514379 | Oct 11, 2001 | Oct 11, 2001 | Vintage Petroleum, Inc. | West Ranch -A- #281 | 5,770 | 23902629 |
| 514343 | Oct 10, 2001 | Oct 10, 2001 | Allegro Investments, Inc. | Elk Hills #1 | 19,900 | 23933161 |
| 514341 | Oct 10, 2001 | Oct 10, 2001 | Sue-Ann Operating, L.C. | M. L. & I. Gas Unit #25F | 6,500 | 23930261 |
| 514273 | Oct 10, 2001 | Oct 10, 2001 | Marquee Corporation | Goff Mineral Trust #3 | 4,200 | 23933160 |
| 513977 | Oct 8, 2001 | Oct 8, 2001 | Acock Engineering & Assoc., Inc. | Hillman #1 | 6,950 | 23933159 |
| 513855 | Sep 27, 2001 | Sep 27, 2001 | Continental Operating Co. | Yaussi -B- #B 10T | 3,226 | 23932424 |
| 513795 | Sep 20, 2001 | Sep 20, 2001 | Vintage Petroleum, Inc. | West Ranch State Oil&gas Unit 1 #14 | 6,780 | 23932760 |
| 513786 | Sep 20, 2001 | Sep 20, 2001 | Vintage Petroleum, Inc. | West Ranch State Oil&gas Unit 1 #7 | 5,980 | 23930071 |
| 513733 | Sep 19, 2001 | Sep 19, 2001 | Ampak Oil Company | Jansky Unit #1 | 5,000 | 23933158 |
| 513277 | Aug 31, 2001 | Aug 31, 2001 | Synergy Oil & Gas, Inc. (A) | Spacek, Frank #8 | 6,440 | 23930409 |
| 512971 | Aug 24, 2001 | Aug 24, 2001 | United Oil & Minerals L. P. | Goff #3 | 8,000 | 23933157 |
| 512619 | Aug 15, 2001 | Aug 15, 2001 | Allegro Investments, Inc. | Farside #1 | 7,200 | 23933156 |
| 512529 | Aug 13, 2001 | Aug 13, 2001 | North Shore Energy, L.L.C. | Wearden #1 | 5,000 | 23933155 |
| 512521 | Aug 13, 2001 | Aug 13, 2001 | Star of Texas Energy Srvs, Inc. | Wynn, Steve "A" #1 | 3,300 | 23933086 |
| 509335 | Aug 9, 2001 | Aug 9, 2001 | Richardson, Marshall T. | Mauritz Unit #1 | 7,363 | 23901493 |
| 512337 | Aug 7, 2001 | Aug 7, 2001 | United Oil & Minerals L. P. | Goff #2 | 8,500 | 23933154 |
| 512075 | Jul 31, 2001 | Jul 31, 2001 | Vintage Petroleum, Inc. | West Ranch "A" #446 | 5,724 | 23902792 |
| 511625 | Jul 24, 2001 | Jul 24, 2001 | Neumin Production Company | Appling Point GU "A" #1 | 13,500 | 23933153 |
| 511679 | Jul 20, 2001 | Jul 20, 2001 | Magnum Producing & Operating Co. | Burditt, Allen L. #1 | 5,800 | 23933071 |
| 511628 | Jul 19, 2001 | Jul 19, 2001 | Chaparral (USA) Energy, Inc. | Light #1 | 4,610 | 23932745 |
| 511445 | Jul 16, 2001 | Jul 16, 2001 | Allegro Investments, Inc. | Signal Hill #1 | 19,000 | 23933152 |
| 511443 | Jul 13, 2001 | Jul 13, 2001 | Kamel Oil, L.L.C. | Burditt, Allen L. #5 | 5,197 | 23901243 |
| 511325 | Jul 11, 2001 | Jul 11, 2001 | TDC Engineering, Inc. | Ploeger #7 | 4,000 | 23933151 |
| 511182 | Jul 9, 2001 | Jul 9, 2001 | Vintage Petroleum, Inc. | West Ranch -A- #542HH | 5,500 | 23933150 |
| 511180 | Jul 9, 2001 | Jul 9, 2001 | Vintage Petroleum, Inc. | West Ranch -A- #541HH | 5,500 | 23933149 |
| 511178 | Jul 9, 2001 | Jul 9, 2001 | Vintage Petroleum, Inc. | West Ranch -A- #540HH | 5,500 | 23933148 |
| 510990 | Jul 3, 2001 | Jul 3, 2001 | Sue-Ann Operating, L.C. | M L & I Gas Unit #18 | 5,100 | 23903487 |
| 510989 | Jul 3, 2001 | Jul 3, 2001 | Allegro Investments, Inc. | Sample #3 | 5,800 | 23933146 |
| 510921 | Jun 29, 2001 | Jun 29, 2001 | Gcea, LLC | Baker #1 | 3,500 | 23933145 |
| 510646 | Jun 22, 2001 | Jun 22, 2001 | Pure Resources, L.P. | Stafford #1 | 12,000 | 23933144 |
| 510646Amendment | Jun 22, 2001 | Jun 22, 2001 | Pure Resources, L.P. | Stafford #1 | 13,000 | 23933144 |
| 510332 | Jun 15, 2001 | Jun 15, 2001 | Allegro Investments, Inc. | Gateway #1 | 7,000 | 23933142 |
| 510332Amendment | Jun 15, 2001 | Jun 15, 2001 | Allegro Investments, Inc. | Gateway #1 | 7,000 | 23933142 |
| 510331 | Jun 15, 2001 | Jun 15, 2001 | Allegro Investments, Inc. | Johnson Foundation #3 | 6,000 | 23933143 |
| 510330 | Jun 15, 2001 | Jun 15, 2001 | Allegro Investments, Inc. | Connor #1 | 6,000 | 23933141 |
| 510329 | Jun 15, 2001 | Jun 15, 2001 | Allegro Investments, Inc. | Cihal #2 | 6,000 | 23933140 |
| 510225 | Jun 14, 2001 | Jun 14, 2001 | Marquee Corporation | Goff Mineral Trust #02 | 6,800 | 23933139 |
| 509563 | Jun 13, 2001 | Jun 13, 2001 | Wadi Petroleum, Inc. | Williams, A. M. #2 | 10,700 | 28532906 |
| 510005 | Jun 8, 2001 | Jun 8, 2001 | Union Gas Operating Company | Miller - Rhoades #1 | 17,000 | 23933138 |
| 509880 | Jun 6, 2001 | Jun 6, 2001 | Allegro Investments, Inc. | Layden-Yendrey Gas Unit #2 | 12,600 | 23933137 |
| 509683 | May 31, 2001 | May 31, 2001 | Chilton Energy | Brooking-Seale Unit #1 | 6,300 | 23933136 |
| 509556 | May 31, 2001 | May 31, 2001 | Wadi Petroleum, Inc. | Williams, A. M. #1 | 3,650 | 23933134 |
| 509450 | May 25, 2001 | May 25, 2001 | Allegro Investments, Inc. | Lakeside #1 | 7,000 | 23933133 |
| 509238 | May 23, 2001 | May 23, 2001 | Barrett Brothers Oil & Gas, Inc. | Harrison #2 | 5,300 | 23933130 |
| 509311 | May 22, 2001 | May 22, 2001 | Gcea, LLC | Dolesh "A" #1 | 3,200 | 23933132 |
| 509310 | May 22, 2001 | May 22, 2001 | Gcea, LLC | Dolesh "A" #2 | 3,200 | 23933131 |