| 608254Amendment | Oct 24, 2005 | Oct 24, 2005 | XTO Energy Inc. | J. R. Black Gas Unit #2 | 12,000 | 21330898 |
| 607464 | Oct 10, 2005 | Oct 10, 2005 | XTO Energy Inc. | TCGU3 (Young, M. G. -7) #7 | 11,000 | 21330896 |
| 606056 | Sep 13, 2005 | Sep 13, 2005 | XTO Energy Inc. | TCGU7 (Baker, Maude -12) #9 | 11,000 | 21330893 |
| 605983 | Sep 9, 2005 | Sep 9, 2005 | XTO Energy Inc. | TCGU1 (Dosser, W. J. -2) #12 | 10,500 | 21330892 |
| 605982 | Sep 9, 2005 | Sep 9, 2005 | XTO Energy Inc. | TCGU10 (McGee, Ben-7) #8 | 10,500 | 21330891 |
| 605850 | Sep 6, 2005 | Sep 6, 2005 | XTO Energy Inc. | Ogu (Howell, W. Y. -2) #131 | 12,300 | 21330539 |
| 605396 | Aug 24, 2005 | Aug 24, 2005 | West Mountain Operating Co, Inc. | Catfish Creek #1 | 11,000 | 21330890 |
| 605396Amendment | Aug 24, 2005 | Aug 24, 2005 | West Mountain Operating Co, Inc. | Catfish Creek #1 | 11,000 | 21330890 |
| 605396Amendment | Aug 24, 2005 | Aug 24, 2005 | West Mountain Operating Co, Inc. | Catfish Creek #1 | 11,000 | 21330890 |
| 602874 | Jul 1, 2005 | Jul 1, 2005 | O'Ryan Oil and Gas | Farley (Smackover) Unit #301H | 9,007 | 21330245 |
| 601362 | May 31, 2005 | May 31, 2005 | Hunt Oil Company | Fairway (James Lime) Unit #5495 | 10,100 | 21330024 |
| 601359 | May 31, 2005 | May 31, 2005 | Hunt Oil Company | Fairway (James Lime) Unit #6462 | 10,093 | 21330021 |
| 601366 | May 27, 2005 | May 27, 2005 | Hunt Oil Company | Fairway (James Lime) Unit #6452 | 10,125 | 21330026 |
| 601365 | May 27, 2005 | May 27, 2005 | Hunt Oil Company | Fairway (James Lime) Unit #7442 | 10,165 | 21330771 |
| 601364 | May 27, 2005 | May 27, 2005 | Hunt Oil Company | Fairway (James Lime) Unit #5442 | 10,150 | 21330027 |
| 559614 | May 26, 2005 | May 26, 2005 | Stroud Petroleum, Inc. | Enserch Processing #11 | 8,500 | 21330887 |
| 600566 | May 12, 2005 | May 12, 2005 | XTO Energy Inc. | Ogu (Howell, W.Y. -6) #195 | 11,450 | 21330776 |
| 600305 | May 9, 2005 | May 9, 2005 | XTO Energy Inc. | Ogu (Pope, F.S. -2) #55 | 10,192 | 21330389 |
| 560301 | Apr 14, 2005 | Apr 14, 2005 | Stroud Petroleum, Inc. | Arnold #7 | 8,700 | 21330889 |
| 560230 | Apr 13, 2005 | Apr 13, 2005 | Stroud Petroleum, Inc. | Wareing #4 | 8,700 | 21330888 |
| 559352 | Apr 4, 2005 | Apr 4, 2005 | XTO Energy Inc. | Ogu (Mc & Suggett -17) #150 | 11,900 | 21330616 |
| 559050 | Mar 15, 2005 | Mar 15, 2005 | Hunt Oil Company | Fairway/James Lime/Unit #4482 | 10,179 | 21330025 |
| 558208 | Feb 24, 2005 | Feb 24, 2005 | Stroud Petroleum, Inc. | Arnold #6 | 8,700 | 21330872 |
| 557493 | Feb 16, 2005 | Feb 16, 2005 | O'Ryan Oil and Gas | Farley (Smackover) Unit #201H | 9,000 | 21330243 |
| 556343 | Jan 18, 2005 | Jan 18, 2005 | Blue Ridge Group, Inc. | Lake Palestine #1 | 8,000 | 21330886 |
| 622075 | Jan 10, 2005 | Jan 10, 2005 | West Mountain Operating Co, Inc. | Zoller Heirs #1 | 8,200 | 21330904 |
| 555184 | Dec 28, 2004 | Dec 28, 2004 | XTO Energy Inc. | Ogu (Mc & Suggett -27) #204 | 14,000 | 21330885 |
| 555102 | Dec 20, 2004 | Dec 20, 2004 | Spartan Operating Company, Inc. | Zoller Heirs #1 | 8,200 | 21330904 |
| 555102Amendment | Dec 20, 2004 | Dec 20, 2004 | Spartan Operating Company, Inc. | Zoller Heirs #1 | 8,200 | 21330904 |
| 554788 | Dec 16, 2004 | Dec 16, 2004 | XTO Energy Inc. | Ogu (Allyn, C. H. -5) #94 | 10,400 | 21330468 |
| 554786 | Dec 15, 2004 | Dec 15, 2004 | XTO Energy Inc. | Ogu (Mc & Suggett -25) #202 | 14,000 | 21330882 |
| 554785 | Dec 15, 2004 | Dec 15, 2004 | XTO Energy Inc. | Ogu (Mc & Suggett -26) #203 | 14,000 | 21330883 |
| 554480 | Dec 8, 2004 | Dec 8, 2004 | Rising Star Energy, L.L.C. | Levine #1 | 2,500 | 21330866 |
| 554104 | Dec 2, 2004 | Dec 2, 2004 | XTO Energy Inc. | Royall, Danny #1 | 10,700 | 21330079 |
| 551969 | Nov 29, 2004 | Nov 29, 2004 | Enteger USA LLC | Davis, L. P. #1 | 9,000 | 21330881 |
| 553326 | Nov 8, 2004 | Nov 8, 2004 | B J Resources, L.L.C. | Cade, Nettie Murl #1H | 9,700 | 21330792 |
| 552736 | Oct 25, 2004 | Oct 25, 2004 | Enerquest Corporation | Cross, Robert #2 | 9,200 | 21330880 |
| 552590 | Oct 21, 2004 | Oct 21, 2004 | XTO Energy Inc. | Ogu (Spradlin, G. T. -5) #199 | 12,000 | 21330879 |
| 552588 | Oct 21, 2004 | Oct 21, 2004 | XTO Energy Inc. | Ogu (Spradlin, G. T. -3) #110 | 10,100 | 21330563 |
| 552372 | Oct 19, 2004 | Oct 19, 2004 | XTO Energy Inc. | Ogu (Spradlin, G. T. -6) #200 | 12,000 | 21330878 |
| 552372Amendment | Oct 19, 2004 | Oct 19, 2004 | XTO Energy Inc. | Ogu (Spradlin, G. T. -6) #200 | 12,000 | 21330878 |
| 552251 | Oct 19, 2004 | Oct 19, 2004 | XTO Energy Inc. | Ogu (Magers, T. M. -11) #201 | 12,000 | 21330877 |
| 549767 | Aug 20, 2004 | Aug 20, 2004 | XTO Energy Inc. | Wells, Grace "A" #3 | 10,200 | 21330876 |
| 549767Amendment | Aug 20, 2004 | Aug 20, 2004 | XTO Energy Inc. | Wells, Grace "A" #3 | 10,200 | 21330876 |
| 549622 | Aug 20, 2004 | Aug 20, 2004 | Enerquest Corporation | Cross, Robert #1 | 9,200 | 21330875 |
| 549292 | Aug 11, 2004 | Aug 11, 2004 | Stroud Petroleum, Inc. | Caraway #1 | 8,700 | 21330874 |
| 547162 | Jun 23, 2004 | Jun 23, 2004 | Stroud Petroleum, Inc. | Enserch Processing #10 | 8,700 | 21330873 |
| 547155 | Jun 21, 2004 | Jun 21, 2004 | Stroud Petroleum, Inc. | Arnold #6 | 8,700 | 21330872 |
| 546410 | Jun 4, 2004 | Jun 4, 2004 | XTO Energy Inc. | Ogu (Asher, M. A. -6) #198 | 10,000 | 21330871 |
| 546410Amendment | Jun 4, 2004 | Jun 4, 2004 | XTO Energy Inc. | Ogu (Asher, M. A. -6) #198 | 10,300 | 21330871 |
| 545734 | May 14, 2004 | May 14, 2004 | B J Resources, L.L.C. | Roberts #1 | 11,500 | 21330870 |
| 544805 | Apr 23, 2004 | Apr 23, 2004 | Palmer Petroleum Inc. | Norwood #2 | 9,500 | 21330869 |
| 543675 | Mar 25, 2004 | Mar 25, 2004 | Rising Star Energy, L.L.C. | Szenasy #1 | 5,450 | 21330868 |
| 543660 | Mar 25, 2004 | Mar 25, 2004 | Rising Star Energy, L.L.C. | Kennedy #1 | 5,000 | 21330867 |
| 543657 | Mar 25, 2004 | Mar 25, 2004 | Rising Star Energy, L.L.C. | Levine #1 | 3,250 | 21330866 |
| 542443 | Feb 26, 2004 | Feb 26, 2004 | XTO Energy Inc. | Ogu (Asher, M. A. -5) #197 | 10,000 | 21330865 |
| 542399 | Feb 26, 2004 | Feb 26, 2004 | XTO Energy Inc. | Ogu (Asher, M. A. -4) #196 | 10,000 | 21330864 |
| 541760 | Feb 6, 2004 | Feb 6, 2004 | Stroud Petroleum, Inc. | Yates #1 | 8,600 | 21330863 |
| 539006 | Nov 25, 2003 | Nov 25, 2003 | Brown, Tom Inc. | Luker #1 | 12,800 | 21330862 |
| 538136 | Oct 31, 2003 | Oct 31, 2003 | Hunt Oil Company | Fairway (James Lime) Unit #4453 | 10,500 | 21330861 |
| 538004 | Oct 29, 2003 | Oct 29, 2003 | Ampak Oil Company | Jordan #1 | 11,500 | 21330860 |
| 537439 | Oct 14, 2003 | Oct 14, 2003 | Stroud Petroleum, Inc. | Enserch Processing, Inc. #9 | 8,600 | 21330859 |
| 537439Amendment | Oct 14, 2003 | Oct 14, 2003 | Stroud Petroleum, Inc. | Enserch Processing, Inc. #9 | 8,600 | 21330859 |
| 537289 | Oct 8, 2003 | Oct 8, 2003 | Spartan Operating Company, Inc. | Trinity Materials #1 | 12,240 | 21330839 |
| 536391 | Sep 17, 2003 | Sep 17, 2003 | Stroud Petroleum, Inc. | Enserch Processing, Inc. #5 | 9,400 | 21330834 |
| 534471 | Jul 30, 2003 | Jul 30, 2003 | Stroud Petroleum, Inc. | Enserch Processing Inc. #6 | 9,400 | 21330849 |
| 533771 | Jul 2, 2003 | Jul 2, 2003 | Munson, David M. Inc. | Carter Gas Unit #5 | 9,500 | 21330858 |
| 530290 | Apr 4, 2003 | Apr 4, 2003 | Stroud Petroleum, Inc. | Arnold #5 | 8,800 | 21330857 |
| 530104 | Mar 31, 2003 | Mar 31, 2003 | Stroud Petroleum, Inc. | Enserch Processing #7 | 8,430 | 21330840 |
| 529460 | Mar 11, 2003 | Mar 11, 2003 | Key Production Company, Inc. | Molnar #2 | 4,000 | 21330856 |
| 529152 | Mar 5, 2003 | Mar 5, 2003 | XTO Energy Inc. | Ogu (Asher, W. D. -3) #144 | 10,550 | 21330603 |
| 527729 | Jan 28, 2003 | Jan 28, 2003 | Palmer Petroleum Inc. | Norwood #1 | 10,500 | 21330823 |
| 526768 | Jan 2, 2003 | Jan 2, 2003 | Key Production Company, Inc. | Bearden, Minnie #2 | 11,000 | 21330855 |
| 525829 | Nov 22, 2002 | Nov 22, 2002 | Fossil Operating, Inc. | Carver #1 | 7,600 | 21330623 |
| 525384 | Nov 15, 2002 | Nov 15, 2002 | Union Oil Company of California | Trinity Materials #2 | 12,000 | 21330843 |
| 525384Amendment | Nov 15, 2002 | Nov 15, 2002 | Spartan Operating Company, Inc. | Trinity Materials #2 | 11,583 | 21330843 |
| 525384Amendment | Nov 15, 2002 | Nov 15, 2002 | Spartan Operating Company, Inc. | Trinity Materials #2 | 11,583 | 21330843 |
| 523799 | Oct 24, 2002 | Oct 24, 2002 | Rippy Oil Company | Bristow #1 | 10,500 | 21330824 |
| 524325 | Oct 16, 2002 | Oct 16, 2002 | Phillips Energy, Inc. | Scott, J. O. #1 | 10,200 | 21330854 |
| 523963 | Sep 25, 2002 | Sep 25, 2002 | XTO Energy Inc. | Ogu (Magers, T. M. -3) #98 | 10,501 | 21330460 |
| 523320 | Sep 5, 2002 | Sep 5, 2002 | Stroud Petroleum, Inc. | Texas Power & Light Co. #8 | 9,800 | 21330853 |
| 523198 | Aug 28, 2002 | Aug 28, 2002 | Fossil Operating, Inc. | Harrison #1A | 7,600 | 21330852 |
| 522988 | Aug 21, 2002 | Aug 21, 2002 | Key Production Company, Inc. | Scrimshire #1 | 5,000 | 21330851 |
| 521967 | Jul 25, 2002 | Jul 25, 2002 | Stroud Petroleum, Inc. | Enserch Processing, Inc. #8 | 9,400 | 21330850 |
| 521925 | Jul 22, 2002 | Jul 22, 2002 | Palmer Petroleum Inc. | Norwood #1 | 10,500 | 21330823 |
| 521891 | Jul 18, 2002 | Jul 18, 2002 | Stroud Petroleum, Inc. | Enserch Processing, Inc #2 | 9,400 | 21330797 |
| 521649 | Jul 12, 2002 | Jul 12, 2002 | Stroud Petroleum, Inc. | Enserch Processing, Inc. #6 | 9,400 | 21330849 |
| 521023 | Jun 21, 2002 | Jun 21, 2002 | Stroud Petroleum, Inc. | Arnold #4 | 9,400 | 21330848 |
| 520715 | Jun 18, 2002 | Jun 18, 2002 | Key Production Company, Inc. | Cox, Eldon R. #1 | 9,000 | 21330847 |
| 520146 | May 22, 2002 | May 22, 2002 | XTO Energy Inc. | Ogu (Howell, W. Y. -6) #195 | 11,450 | 21330776 |
| 517102 | Mar 18, 2002 | Mar 18, 2002 | Stroud Petroleum, Inc. | Enserch Processing, Inc. #4 | 8,900 | 21330814 |
| 517686 | Feb 25, 2002 | Feb 25, 2002 | Range Production Company | Linder #3 | 9,600 | 21330846 |
| 517686Amendment | Feb 25, 2002 | Feb 25, 2002 | Range Production Company | Linder #3 | 9,600 | 21330846 |
| 516457 | Jan 10, 2002 | Jan 10, 2002 | XTO Energy Inc. | Ogu (Spradlin, G. T. -1) ST1 #36 | 10,009 | 21300230 |
| 516658 | Jan 8, 2002 | Jan 8, 2002 | Union Oil Company of California | Williams, Margaret #1 | 12,500 | 21330845 |
| 516436 | Jan 7, 2002 | Jan 7, 2002 | Stroud Petroleum, Inc. | Txu-Airheart #1 | 9,400 | 21330844 |
| 515874 | Dec 11, 2001 | Dec 11, 2001 | XTO Energy Inc. | Ogu (Mager, T. M. 5) #100 | 10,500 | 21330489 |
| 515873 | Dec 11, 2001 | Dec 11, 2001 | XTO Energy Inc. | Ogu (Huff C. C. 3) #118 | 12,048 | 21330569 |
| 515872 | Dec 11, 2001 | Dec 11, 2001 | XTO Energy Inc. | Ogu (Ingram, M. W. 3) #72 | 10,500 | 21330363 |
| 515634 | Nov 27, 2001 | Nov 27, 2001 | Union Oil Company of California | Trinity Materials #2 | 12,000 | 21330843 |