| 608449 | Oct 28, 2005 | Oct 28, 2005 | XTO Energy Inc. | Freestone | Reed "E" Gas Unit #1216133416 | 15,000 |
| 608402 | Oct 28, 2005 | Oct 28, 2005 | XTO Energy Inc. | Limestone | Chandler Gas Unit No. 1 #1329331769 | 15,000 |
| 608402Amendment | Oct 28, 2005 | Oct 28, 2005 | XTO Energy Inc. | Limestone | Chandler Gas Unit No. 1 #1329331769 | 15,000 |
| 608401 | Oct 28, 2005 | Oct 28, 2005 | XTO Energy Inc. | Freestone | Hugh D. Reed No. 1 Gas Unit #416133414 | 13,000 |
| 608339 | Oct 27, 2005 | Oct 27, 2005 | XTO Energy Inc. | Limestone | Chandler Gas Unit No. 1 #329331768 | 15,000 |
| 608339Amendment | Oct 27, 2005 | Oct 27, 2005 | XTO Energy Inc. | Limestone | Chandler Gas Unit No. 1 #329331768 | 15,000 |
| 608338 | Oct 27, 2005 | Oct 27, 2005 | XTO Energy Inc. | Henderson | J.R. Black Gas Unit #321330899 | 12,000 |
| 608199 | Oct 27, 2005 | Oct 27, 2005 | XTO Energy Inc. | Tarrant | Pearce Unit #2HH43931380 | 11,000 |
| 608279 | Oct 25, 2005 | Oct 25, 2005 | XTO Energy Inc. | Freestone | Eppes #116131526 | 9,600 |
| 608275 | Oct 25, 2005 | Oct 25, 2005 | XTO Energy Inc. | Freestone | Terry "B" No. 1 Gas Unit #516133412 | 13,200 |
| 608268 | Oct 25, 2005 | Oct 25, 2005 | XTO Energy Inc. | Freestone | Capps No. 1 Gas Unit #516133411 | 13,500 |
| 608263 | Oct 25, 2005 | Oct 25, 2005 | XTO Energy Inc. | Cherokee | Chronister Heirs #307331149 | 12,500 |
| 608263Amendment | Oct 25, 2005 | Oct 25, 2005 | XTO Energy Inc. | Cherokee | Chronister Heirs #307331149 | 15,000 |
| 608262Amendment | Oct 25, 2005 | Oct 25, 2005 | XTO Energy Inc. | Cherokee | Chronister Heirs #207331148 | 13,500 |
| 608393 | Oct 24, 2005 | Oct 24, 2005 | XTO Energy Inc. | Parker | Walsh Cresson Ranch #D 2HH36733821 | 10,000 |
| 608381 | Oct 24, 2005 | Oct 24, 2005 | XTO Energy Inc. | Parker | Walsh Cresson Ranch #F 1HH36733819 | 10,000 |
| 608381Amendment | Oct 24, 2005 | Oct 24, 2005 | XTO Energy Inc. | Parker | Walsh Cresson Ranch #F 1HH36733819 | 8,000 |
| 608371 | Oct 24, 2005 | Oct 24, 2005 | XTO Energy Inc. | Johnson | Harper Nej #1HH25130614 | 11,000 |
| 608254 | Oct 24, 2005 | Oct 24, 2005 | XTO Energy Inc. | Henderson | J. R. Black Gas Unit #221330898 | 12,000 |
| 608254Amendment | Oct 24, 2005 | Oct 24, 2005 | XTO Energy Inc. | Henderson | J. R. Black Gas Unit #221330898 | 12,000 |
| 608000 | Oct 20, 2005 | Oct 20, 2005 | XTO Energy Inc. | Limestone | Standley Gas Unit No. 2 #1429331765 | 14,500 |
| 607910 | Oct 20, 2005 | Oct 20, 2005 | XTO Energy Inc. | Limestone | Standley Gas Unit No. 2 #1229331763 | 14,500 |
| 607910Amendment | Oct 20, 2005 | Oct 20, 2005 | XTO Energy Inc. | Limestone | Standley Gas Unit No. 2 #1229331763 | 14,500 |
| 608196 | Oct 19, 2005 | Oct 19, 2005 | XTO Energy Inc. | Tarrant | Pearce Unit #1HH43931379 | 11,000 |
| 608196Amendment | Oct 19, 2005 | Oct 19, 2005 | XTO Energy Inc. | Tarrant | Pearce Unit #1HH43931379 | 11,000 |
| 608196Amendment | Oct 19, 2005 | Oct 19, 2005 | XTO Energy Inc. | Tarrant | Pearce Unit #1HH43931379 | 11,000 |
| 608162 | Oct 19, 2005 | Oct 19, 2005 | XTO Energy Inc. | Parker | Walsh Cresson Ranch #E 4HH36733814 | 10,000 |
| 608038 | Oct 19, 2005 | Oct 19, 2005 | XTO Energy Inc. | Tarrant | Railhead #6HH43931376 | 11,000 |
| 608072 | Oct 18, 2005 | Oct 18, 2005 | XTO Energy Inc. | Tarrant | Hodge Unit #1HH43931378 | 11,000 |
| 608006 | Oct 18, 2005 | Oct 18, 2005 | XTO Energy Inc. | Johnson | Harper Cattle #B 4HH25130597 | 11,000 |
| 607845 | Oct 18, 2005 | Oct 18, 2005 | XTO Energy Inc. | Limestone | Standley Gas Unit No. 2 #1129331764 | 14,500 |
| 607668 | Oct 18, 2005 | Oct 18, 2005 | XTO Energy Inc. | Parker | Walsh Ranch West #R 2HH36733811 | 10,000 |
| 607038 | Oct 18, 2005 | Oct 18, 2005 | XTO Energy Inc. | Johnson | Bursey #1HH25130600 | 11,000 |
| 607038Amendment | Oct 18, 2005 | Oct 18, 2005 | XTO Energy Inc. | Johnson | Bursey #1HH25130600 | 11,000 |
| 607758 | Oct 17, 2005 | Oct 17, 2005 | XTO Energy Inc. | Limestone | Gibson #1429331762 | 14,200 |
| 607868 | Oct 14, 2005 | Oct 14, 2005 | XTO Energy Inc. | Johnson | Stone #1HH25130593 | 11,000 |
| 607436 | Oct 13, 2005 | Oct 13, 2005 | XTO Energy Inc. | Andrews | University "9" C #5HH00338160 | 11,300 |
| 607436Amendment | Oct 13, 2005 | Oct 13, 2005 | XTO Energy Inc. | Andrews | University "9" C #5HH00338160 | 11,300 |
| 607435 | Oct 13, 2005 | Oct 13, 2005 | XTO Energy Inc. | Andrews | University "9" -B- #5HH00338005 | 11,400 |
| 607658 | Oct 11, 2005 | Oct 11, 2005 | XTO Energy Inc. | Tarrant | Daugherty #4HH43931374 | 11,000 |
| 607634 | Oct 10, 2005 | Oct 10, 2005 | XTO Energy Inc. | Johnson | Wilkinson Unit #1HH25130583 | 11,000 |
| 607634Amendment | Oct 10, 2005 | Oct 10, 2005 | XTO Energy Inc. | Johnson | Wilkinson Unit #1HH25130583 | 11,000 |
| 607586 | Oct 10, 2005 | Oct 10, 2005 | XTO Energy Inc. | Tarrant | Davis Unit #1HH43931373 | 11,000 |
| 607464 | Oct 10, 2005 | Oct 10, 2005 | XTO Energy Inc. | Henderson | TCGU3 (Young, M. G. -7) #721330896 | 11,000 |
| 607421 | Oct 10, 2005 | Oct 10, 2005 | XTO Energy Inc. | Freestone | Craig Gas Unit #216133398 | 13,600 |
| 607421Amendment | Oct 10, 2005 | Oct 10, 2005 | XTO Energy Inc. | Freestone | Craig Gas Unit #216133398 | 13,600 |
| 607157 | Oct 7, 2005 | Oct 7, 2005 | XTO Energy Inc. | Tarrant | Garrett a Unit #1HH43931372 | 11,000 |
| 607390 | Oct 6, 2005 | Oct 6, 2005 | XTO Energy Inc. | Gaines | Russell (Clearfork 7000) Unit #41316536435 | 8,600 |
| 607390Amendment | Oct 6, 2005 | Oct 6, 2005 | XTO Energy Inc. | Gaines | Russell (Clearfork 7000) Unit #41316536435 | 8,600 |
| 607362 | Oct 6, 2005 | Oct 6, 2005 | XTO Energy Inc. | Ector | Goldsmith, C.A., Etal #163213538960 | 7,200 |
| 607362Amendment | Oct 6, 2005 | Oct 6, 2005 | XTO Energy Inc. | Ector | Goldsmith, C.A., Etal #163313538960 | 7,200 |
| 607360 | Oct 6, 2005 | Oct 6, 2005 | XTO Energy Inc. | Ector | Goldsmith, C.A., Etal #163013538959 | 7,200 |
| 607359 | Oct 6, 2005 | Oct 6, 2005 | XTO Energy Inc. | Ector | Goldsmith, C.A., Etal #162913538958 | 7,200 |
| 607358 | Oct 6, 2005 | Oct 6, 2005 | XTO Energy Inc. | Ector | Goldsmith, C.A., Etal #162813538957 | 7,200 |
| 607357 | Oct 6, 2005 | Oct 6, 2005 | XTO Energy Inc. | Ector | Goldsmith, C.A., Etal #162713538954 | 7,200 |
| 607355 | Oct 6, 2005 | Oct 6, 2005 | XTO Energy Inc. | Ector | Goldsmith, C.A., Etal #162613538956 | 7,200 |
| 607353 | Oct 6, 2005 | Oct 6, 2005 | XTO Energy Inc. | Ector | Goldsmith, C.A., Etal #162513538955 | 7,200 |
| 607344 | Oct 6, 2005 | Oct 6, 2005 | XTO Energy Inc. | Ector | Goldsmith, C.A., Etal #162313538953 | 7,200 |
| 607285 | Oct 6, 2005 | Oct 6, 2005 | XTO Energy Inc. | Leon | Gail King #2928931522 | 15,000 |
| 607297 | Oct 4, 2005 | Oct 4, 2005 | XTO Energy Inc. | Ector | Goldsmith, C.A., Etal #162213538952 | 7,200 |
| 607297Amendment | Oct 4, 2005 | Oct 4, 2005 | XTO Energy Inc. | Ector | Goldsmith, C.A., Etal #162213538952 | 7,200 |
| 607272 | Oct 4, 2005 | Oct 4, 2005 | XTO Energy Inc. | Ector | Goldsmith, C.A. Etal #162113538951 | 7,200 |
| 607240 | Oct 4, 2005 | Oct 4, 2005 | XTO Energy Inc. | Ector | Goldsmith, C.A., Etal #162013538950 | 7,200 |
| 607235 | Oct 4, 2005 | Oct 4, 2005 | XTO Energy Inc. | Gaines | Russell (Clearfork 7000) Unit #42616536426 | 8,600 |
| 607237 | Oct 3, 2005 | Oct 3, 2005 | XTO Energy Inc. | Gaines | Russell (Clearfork 7000) Unit #42916536424 | 8,600 |
| 607237Amendment | Oct 3, 2005 | Oct 3, 2005 | XTO Energy Inc. | Gaines | Russell (Clearfork 7000) Unit #42916536424 | 9,000 |
| 607234 | Oct 3, 2005 | Oct 3, 2005 | XTO Energy Inc. | Gaines | Russell (Clearfork 7000) Unit #31716536425 | 8,600 |
| 607234Amendment | Oct 3, 2005 | Oct 3, 2005 | XTO Energy Inc. | Gaines | Russell (Clearfork 7000) Unit #31716536425 | 8,600 |
| 607150 | Sep 30, 2005 | Sep 30, 2005 | XTO Energy Inc. | Tarrant | Murphy a Unit #1HH43931368 | 11,000 |
| 607150Amendment | Sep 30, 2005 | Sep 30, 2005 | XTO Energy Inc. | Tarrant | Murphy a Unit #1HH43931368 | 12,000 |
| 607099 | Sep 29, 2005 | Sep 29, 2005 | XTO Energy Inc. | Tarrant | Railhead #5HH43931367 | 11,000 |
| 607020 | Sep 29, 2005 | Sep 29, 2005 | XTO Energy Inc. | Limestone | Phillips "a" #1 Gas Unit #629331760 | 14,500 |
| 607019 | Sep 29, 2005 | Sep 29, 2005 | XTO Energy Inc. | Limestone | Lyons Gas Unit No. 1 #2029331759 | 14,200 |
| 607019Amendment | Sep 29, 2005 | Sep 29, 2005 | XTO Energy Inc. | Limestone | Lyons Gas Unit No. 1 #2029331759 | 14,200 |
| 607019Amendment | Sep 29, 2005 | Sep 29, 2005 | XTO Energy Inc. | Limestone | Lyons Gas Unit No. 1 #2029331759 | 14,200 |
| 606832 | Sep 28, 2005 | Sep 28, 2005 | XTO Energy Inc. | Freestone | Cosson Gas Unit #1316133388 | 13,100 |
| 606832Amendment | Sep 28, 2005 | Sep 28, 2005 | XTO Energy Inc. | Freestone | Cosson Gas Unit #1316133388 | 13,100 |
| 606830 | Sep 28, 2005 | Sep 28, 2005 | XTO Energy Inc. | Freestone | Cosson Gas Unit #1216133387 | 13,100 |
| 606977 | Sep 27, 2005 | Sep 27, 2005 | XTO Energy Inc. | Johnson | Alford Boone Unit #1HH25130557 | 11,000 |
| 606977Amendment | Sep 27, 2005 | Sep 27, 2005 | XTO Energy Inc. | Johnson | Alford Boone Unit #1HH25130557 | 11,000 |
| 606968 | Sep 27, 2005 | Sep 27, 2005 | XTO Energy Inc. | Parker | Walsh Ranch West Unit #I 2HH36733797 | 11,000 |
| 606922 | Sep 27, 2005 | Sep 27, 2005 | XTO Energy Inc. | Freestone | Henderson Gas Unit #1316133392 | 13,200 |
| 606922Amendment | Sep 27, 2005 | Sep 27, 2005 | XTO Energy Inc. | Freestone | Henderson #1316133392 | 13,200 |
| 606910 | Sep 26, 2005 | Sep 26, 2005 | XTO Energy Inc. | Parker | Walsh Cresson Ranch #D 1HH36733795 | 11,000 |
| 606902 | Sep 26, 2005 | Sep 26, 2005 | XTO Energy Inc. | Andrews | State University BH #7H00338659 | 11,700 |
| 606902Amendment | Sep 26, 2005 | Sep 26, 2005 | XTO Energy Inc. | Andrews | State of Texas BH #7HH00338659 | 11,700 |
| 606836 | Sep 26, 2005 | Sep 26, 2005 | XTO Energy Inc. | Freestone | Curry Gas Unit #1316133390 | 13,300 |
| 606836Amendment | Sep 26, 2005 | Sep 26, 2005 | XTO Energy Inc. | Freestone | Curry Gas Unit #1316133390 | 13,300 |
| 606836Amendment | Sep 26, 2005 | Sep 26, 2005 | XTO Energy Inc. | Freestone | Curry Gas Unit #1316133390 | 13,300 |
| 606834 | Sep 26, 2005 | Sep 26, 2005 | XTO Energy Inc. | Freestone | Curry Gas Unit #1016133389 | 13,220 |
| 606834Amendment | Sep 26, 2005 | Sep 26, 2005 | XTO Energy Inc. | Freestone | Curry Gas Unit #1016133389 | 13,220 |
| 606621 | Sep 22, 2005 | Sep 22, 2005 | XTO Energy Inc. | Leon | King, Gail #328931207 | 10,100 |
| 606620 | Sep 22, 2005 | Sep 22, 2005 | XTO Energy Inc. | Freestone | Hugh D. Reed No. 1 Gas Unit #316133384 | 12,800 |
| 606555 | Sep 20, 2005 | Sep 20, 2005 | XTO Energy Inc. | Limestone | Phillips "a" #1 Gas Unit #1629331756 | 14,500 |
| 606498 | Sep 20, 2005 | Sep 20, 2005 | XTO Energy Inc. | Limestone | Phillips "a" #1 Gas Unit #1529331755 | 14,500 |
| 606498Amendment | Sep 20, 2005 | Sep 20, 2005 | XTO Energy Inc. | Limestone | Phillips "a" #1 Gas Unit #1529331755 | 14,500 |
| 606560 | Sep 19, 2005 | Sep 19, 2005 | XTO Energy Inc. | Parker | Walsh Ranch West #R 1HH36733786 | 11,000 |
| 606424 | Sep 19, 2005 | Sep 19, 2005 | XTO Energy Inc. | Limestone | Phillips "a" #1 Gas Unit #929331751 | 14,500 |
| 606422 | Sep 19, 2005 | Sep 19, 2005 | XTO Energy Inc. | Limestone | H. D. Thomas et al Gas Unit #1229331753 | 13,400 |
| 606443 | Sep 16, 2005 | Sep 16, 2005 | XTO Energy Inc. | Tarrant | Siddons #2HH43931360 | 11,000 |