| 540902Amendment | Apr 6, 2004 | Apr 6, 2004 | XTO Energy Inc. | Tarrant | Marine Creek #A 1HH43930792 | 10,000 |
| 543970 | Apr 2, 2004 | Apr 2, 2004 | XTO Energy Inc. | Freestone | Boyd-Pickett Gas Unit #716132954 | 13,000 |
| 543970Amendment | Apr 2, 2004 | Apr 2, 2004 | XTO Energy Inc. | Freestone | Boyd-Pickett Gas Unit #716132954 | 13,000 |
| 543915 | Apr 1, 2004 | Apr 1, 2004 | XTO Energy Inc. | Freestone | Wilburn #516132951 | 13,600 |
| 543914 | Apr 1, 2004 | Apr 1, 2004 | XTO Energy Inc. | Freestone | Clarke Gas Unit #1616132952 | 12,900 |
| 543650 | Mar 26, 2004 | Mar 26, 2004 | XTO Energy Inc. | Freestone | Kirsch Gas Unit #216130930 | 12,700 |
| 543587 | Mar 24, 2004 | Mar 24, 2004 | XTO Energy Inc. | Limestone | Gross, Richard H., et Al #129331570 | 13,500 |
| 543495 | Mar 23, 2004 | Mar 23, 2004 | XTO Energy Inc. | Freestone | Boyd-Pickett Gas Unit #816132944 | 13,100 |
| 543495Amendment | Mar 23, 2004 | Mar 23, 2004 | XTO Energy Inc. | Freestone | Boyd-Pickett Gas Unit #816132944 | 13,100 |
| 543452 | Mar 23, 2004 | Mar 23, 2004 | XTO Energy Inc. | Freestone | Curry Gas Unit #616132943 | 13,200 |
| 543452Amendment | Mar 23, 2004 | Mar 23, 2004 | XTO Energy Inc. | Freestone | Curry Gas Unit #616132943 | 13,200 |
| 543451 | Mar 23, 2004 | Mar 23, 2004 | XTO Energy Inc. | Freestone | Boyd-Pickett Gas Unit #616132942 | 13,200 |
| 543451Amendment | Mar 23, 2004 | Mar 23, 2004 | XTO Energy Inc. | Freestone | Boyd-Pickett Gas Unit #616132942 | 13,200 |
| 543450 | Mar 23, 2004 | Mar 23, 2004 | XTO Energy Inc. | Freestone | Curry Gas Unit #516132941 | 13,300 |
| 543450Amendment | Mar 23, 2004 | Mar 23, 2004 | XTO Energy Inc. | Freestone | Curry Gas Unit #516132941 | 13,300 |
| 542151 | Mar 22, 2004 | Mar 22, 2004 | XTO Energy Inc. | Freestone | Kirsch Gas Unit #716132904 | 12,900 |
| 543372 | Mar 18, 2004 | Mar 18, 2004 | XTO Energy Inc. | Freestone | Pickett #1 Gas Unit #416132937 | 12,900 |
| 543372Amendment | Mar 18, 2004 | Mar 18, 2004 | XTO Energy Inc. | Freestone | Pickett #1 Gas Unit #416132937 | 12,900 |
| 543196 | Mar 15, 2004 | Mar 15, 2004 | XTO Energy Inc. | Limestone | Perlitz Gas Unit No. 1 #229330989 | 9,522 |
| 542792 | Mar 8, 2004 | Mar 8, 2004 | XTO Energy Inc. | Leon | Gail King #628931399 | 15,000 |
| 542865 | Mar 5, 2004 | Mar 5, 2004 | XTO Energy Inc. | Terry | Prentice Northeast Unit #27744532050 | 7,374 |
| 542863 | Mar 5, 2004 | Mar 5, 2004 | XTO Energy Inc. | Terry | Prentice Northeast Unit #50344532049 | 7,322 |
| 542862 | Mar 5, 2004 | Mar 5, 2004 | XTO Energy Inc. | Terry | Prentice Northeast Unit #48044532048 | 7,344 |
| 542861 | Mar 5, 2004 | Mar 5, 2004 | XTO Energy Inc. | Terry | Prentice Northeast Unit #30344532047 | 7,358 |
| 542860 | Mar 5, 2004 | Mar 5, 2004 | XTO Energy Inc. | Terry | Covington,ella B #1944532039 | 8,550 |
| 542859 | Mar 5, 2004 | Mar 5, 2004 | XTO Energy Inc. | Terry | Prentice Northeast Unit #50644532046 | 7,343 |
| 542858 | Mar 5, 2004 | Mar 5, 2004 | XTO Energy Inc. | Terry | Prentice Norteast Unit #68744532040 | 7,080 |
| 542857 | Mar 5, 2004 | Mar 5, 2004 | XTO Energy Inc. | Terry | Prentice Northeast Unit #61344532045 | 7,360 |
| 542856 | Mar 5, 2004 | Mar 5, 2004 | XTO Energy Inc. | Terry | Prentice Northeast Unit #58344532044 | 7,323 |
| 542855 | Mar 5, 2004 | Mar 5, 2004 | XTO Energy Inc. | Terry | Prentice Northeast Unit #57944532043 | 7,420 |
| 542853 | Mar 5, 2004 | Mar 5, 2004 | XTO Energy Inc. | Terry | Prentice Northeast Unit #53044532042 | 7,356 |
| 542851 | Mar 5, 2004 | Mar 5, 2004 | XTO Energy Inc. | Terry | Prentice Northeast Unit #50944532041 | 7,383 |
| 542803 | Mar 5, 2004 | Mar 5, 2004 | XTO Energy Inc. | Freestone | Athel Ivy Gas Unit #216130650 | 13,000 |
| 542801 | Mar 5, 2004 | Mar 5, 2004 | XTO Energy Inc. | Gregg | Pine Tree I.S.D. #818331655 | 12,000 |
| 542794 | Mar 5, 2004 | Mar 5, 2004 | XTO Energy Inc. | Harrison | Davis, Bev #120332918 | 12,000 |
| 542794Amendment | Mar 5, 2004 | Mar 5, 2004 | XTO Energy Inc. | Harrison | Davis, Bev #120332918 | 12,000 |
| 542793 | Mar 5, 2004 | Mar 5, 2004 | XTO Energy Inc. | Panola | J. D. Woolworth Unit #836535279 | 9,600 |
| 542793Amendment | Mar 5, 2004 | Mar 5, 2004 | XTO Energy Inc. | Panola | J. D. Woolworth Unit #836535279 | 9,900 |
| 542721 | Mar 5, 2004 | Mar 5, 2004 | XTO Energy Inc. | Freestone | Irvin Gas Unit #716132925 | 13,200 |
| 542721Amendment | Mar 5, 2004 | Mar 5, 2004 | XTO Energy Inc. | Freestone | Irvin Gas Unit #716132925 | 13,200 |
| 542719 | Mar 5, 2004 | Mar 5, 2004 | XTO Energy Inc. | Limestone | McKenzie "B" Gas Unit #129331564 | 14,000 |
| 541665 | Mar 5, 2004 | Mar 5, 2004 | XTO Energy Inc. | Freestone | Winfree Gas Unit #1016132892 | 13,500 |
| 541430 | Mar 3, 2004 | Mar 3, 2004 | XTO Energy Inc. | Freestone | Fails Gas Unit #1216132890 | 13,300 |
| 542655 | Mar 2, 2004 | Mar 2, 2004 | XTO Energy Inc. | Andrews | University Block 9/Penn/Unit #7700336923 | 9,350 |
| 542545 | Mar 2, 2004 | Mar 2, 2004 | XTO Energy Inc. | Freestone | Clarke Gas Unit #1516132920 | 13,000 |
| 542544 | Mar 2, 2004 | Mar 2, 2004 | XTO Energy Inc. | Freestone | Clarke Gas Unit #1416132921 | 12,800 |
| 542543 | Mar 2, 2004 | Mar 2, 2004 | XTO Energy Inc. | Limestone | Chandler Gas Unit No. 1 #1129331563 | 13,500 |
| 542543Amendment | Mar 2, 2004 | Mar 2, 2004 | XTO Energy Inc. | Limestone | Chandler Gas Unit No. 1 #1129331563 | 14,700 |
| 542542 | Mar 2, 2004 | Mar 2, 2004 | XTO Energy Inc. | Freestone | Cagle Gas Unit #1116132922 | 13,700 |
| 542495 | Feb 27, 2004 | Feb 27, 2004 | XTO Energy Inc. | Freestone | Barnett Gas Unit #616132914 | 13,200 |
| 542494 | Feb 26, 2004 | Feb 26, 2004 | XTO Energy Inc. | Freestone | Clarke Gas Unit #516132915 | 12,900 |
| 542493 | Feb 26, 2004 | Feb 26, 2004 | XTO Energy Inc. | Freestone | Clarke Gas Unit #1216132916 | 12,800 |
| 542491 | Feb 26, 2004 | Feb 26, 2004 | XTO Energy Inc. | Freestone | Clarke Gas Unit #1316132917 | 12,800 |
| 542443 | Feb 26, 2004 | Feb 26, 2004 | XTO Energy Inc. | Henderson | Ogu (Asher, M. A. -5) #19721330865 | 10,000 |
| 542399 | Feb 26, 2004 | Feb 26, 2004 | XTO Energy Inc. | Henderson | Ogu (Asher, M. A. -4) #19621330864 | 10,000 |
| 542398 | Feb 26, 2004 | Feb 26, 2004 | XTO Energy Inc. | Freestone | Coleman Gas Unit #316132912 | 11,100 |
| 542398Amendment | Feb 26, 2004 | Feb 26, 2004 | XTO Energy Inc. | Freestone | Coleman Gas Unit #316132912 | 11,100 |
| 542197 | Feb 25, 2004 | Feb 25, 2004 | XTO Energy Inc. | Freestone | Barnett Gas Unit #716132907 | 13,600 |
| 542198 | Feb 20, 2004 | Feb 20, 2004 | XTO Energy Inc. | Freestone | Cosson Gas Unit #916132908 | 13,100 |
| 542198Amendment | Feb 20, 2004 | Feb 20, 2004 | XTO Energy Inc. | Freestone | Cosson Gas Unit #916132908 | 13,100 |
| 542152 | Feb 20, 2004 | Feb 20, 2004 | XTO Energy Inc. | Freestone | Rogers Gas Unit #916133490 | 13,500 |
| 542176 | Feb 18, 2004 | Feb 18, 2004 | XTO Energy Inc. | Yoakum | Cornell Unit #319750134955 | 5,400 |
| 542175 | Feb 18, 2004 | Feb 18, 2004 | XTO Energy Inc. | Yoakum | Cornell Unit #6399GC50134954 | 5,400 |
| 542175Amendment | Feb 18, 2004 | Feb 18, 2004 | XTO Energy Inc. | Yoakum | Cornell Unit #6399GC50134954 | 5,400 |
| 542174 | Feb 18, 2004 | Feb 18, 2004 | XTO Energy Inc. | Yoakum | Cornell Unit #30250134953 | 5,400 |
| 542173 | Feb 18, 2004 | Feb 18, 2004 | XTO Energy Inc. | Yoakum | Cornell Unit #306550134952 | 5,400 |
| 542172 | Feb 18, 2004 | Feb 18, 2004 | XTO Energy Inc. | Yoakum | Cornell Unit #301GC50134951 | 5,400 |
| 542171 | Feb 18, 2004 | Feb 18, 2004 | XTO Energy Inc. | Yoakum | Cornell Unit #6398GC50134950 | 5,400 |
| 542171Amendment | Feb 18, 2004 | Feb 18, 2004 | XTO Energy Inc. | Yoakum | Cornell Unit #6398GC50134950 | 5,400 |
| 541983 | Feb 12, 2004 | Feb 12, 2004 | XTO Energy Inc. | Robertson | Lee Martin Gas Unit No. 1 #739530882 | 13,900 |
| 541982 | Feb 12, 2004 | Feb 12, 2004 | XTO Energy Inc. | Robertson | Martin #1 Gas Unit #1739530881 | 13,900 |
| 541982Amendment | Feb 12, 2004 | Feb 12, 2004 | XTO Energy Inc. | Robertson | Martin #1 Gas Unit #1739530881 | 13,900 |
| 541596 | Feb 10, 2004 | Feb 10, 2004 | XTO Energy Inc. | Robertson | Lincecum Gas Unit No. 1 #539530874 | 13,900 |
| 541594 | Feb 10, 2004 | Feb 10, 2004 | XTO Energy Inc. | Freestone | J. A. Gilliam GU II #716132891 | 12,300 |
| 541594Amendment | Feb 10, 2004 | Feb 10, 2004 | XTO Energy Inc. | Freestone | J. A. Gilliam GU II #716132891 | 13,300 |
| 541664 | Feb 9, 2004 | Feb 9, 2004 | XTO Energy Inc. | Limestone | Jeff Thomas Gas Unit No. 1 #129330950 | 9,900 |
| 541595 | Feb 9, 2004 | Feb 9, 2004 | XTO Energy Inc. | Robertson | Merryman Gas Unit No. 1 #639530875 | 13,900 |
| 541431 | Feb 9, 2004 | Feb 9, 2004 | XTO Energy Inc. | Freestone | George Fulton Gas Unit No. 1 #516132269 | 14,500 |
| 541429 | Feb 9, 2004 | Feb 9, 2004 | XTO Energy Inc. | Freestone | Winfree Gas Unit #916132887 | 13,400 |
| 541365 | Feb 9, 2004 | Feb 9, 2004 | XTO Energy Inc. | Freestone | Jack Knight Heirs #116132881 | 13,900 |
| 541348 | Feb 4, 2004 | Feb 4, 2004 | XTO Energy Inc. | Robertson | Biggs #1 Gas Unit #939530871 | 13,900 |
| 541347 | Feb 4, 2004 | Feb 4, 2004 | XTO Energy Inc. | Robertson | H. M. Jones Gas Unit #939530872 | 13,900 |
| 541347Amendment | Feb 4, 2004 | Feb 4, 2004 | XTO Energy Inc. | Robertson | H. M. Jones Gas Unit #939530872 | 13,900 |
| 541346 | Feb 3, 2004 | Feb 3, 2004 | XTO Energy Inc. | Andrews | University Block 9/Wolfcamp Unit #219800305401 | 9,020 |
| 541219 | Jan 29, 2004 | Jan 29, 2004 | XTO Energy Inc. | Andrews | University Block 9/Wolfcamp/Unit #1H00300443 | 9,065 |
| 541218 | Jan 29, 2004 | Jan 29, 2004 | XTO Energy Inc. | Andrews | University Block 9/Wolfcamp/Unit #2SA00305160 | 8,539 |
| 541085 | Jan 26, 2004 | Jan 26, 2004 | XTO Energy Inc. | Freestone | Henderson Gas Unit #916132878 | 13,300 |
| 541085Amendment | Jan 26, 2004 | Jan 26, 2004 | XTO Energy Inc. | Freestone | Henderson Gas Unit #916132878 | 13,300 |
| 539950 | Jan 26, 2004 | Jan 26, 2004 | XTO Energy Inc. | Robertson | R. H. Frier Gas Unit II #539530855 | 13,900 |
| 540982 | Jan 23, 2004 | Jan 23, 2004 | XTO Energy Inc. | Limestone | Crider Gas Unit #129331561 | 13,200 |
| 540986 | Jan 22, 2004 | Jan 22, 2004 | XTO Energy Inc. | Freestone | Loper Gas Unit #116132874 | 11,100 |
| 540986Amendment | Jan 22, 2004 | Jan 22, 2004 | XTO Energy Inc. | Freestone | Loper Gas Unit #116132874 | 11,100 |
| 540984 | Jan 22, 2004 | Jan 22, 2004 | XTO Energy Inc. | Freestone | Henderson Gas Unit #1116132877 | 13,300 |
| 540984Amendment | Jan 22, 2004 | Jan 22, 2004 | XTO Energy Inc. | Freestone | Henderson Gas Unit #1116132877 | 13,300 |
| 540984Amendment | Jan 22, 2004 | Jan 22, 2004 | XTO Energy Inc. | Freestone | Henderson Gas Unit #1116132877 | 13,300 |
| 540983 | Jan 22, 2004 | Jan 22, 2004 | XTO Energy Inc. | Freestone | Henderson Gas Unit #1016132876 | 13,200 |
| 540983Amendment | Jan 22, 2004 | Jan 22, 2004 | XTO Energy Inc. | Freestone | Henderson Gas Unit #1016132876 | 13,200 |
| 540987 | Jan 21, 2004 | Jan 21, 2004 | XTO Energy Inc. | Robertson | Martin/Mitchell I Gas Unit #139530868 | 13,900 |
| 540793 | Jan 16, 2004 | Jan 16, 2004 | XTO Energy Inc. | Freestone | Sartor "a" Gas Unit #116132867 | 12,100 |
| 540793Amendment | Jan 16, 2004 | Jan 16, 2004 | XTO Energy Inc. | Freestone | Sartor "a" Gas Unit #116132867 | 13,200 |