| 650088 | Dec 5, 2007 | Dec 5, 2007 | XTO Energy Inc. | Parker | Waters Unit #B 1HH36734608 | 10,500 |
| 650088Amendment | Dec 5, 2007 | Dec 5, 2007 | XTO Energy Inc. | Parker | Waters B Unit #1HH36734608 | 10,500 |
| 650088Amendment | Dec 5, 2007 | Dec 5, 2007 | XTO Energy Inc. | Parker | Waters B Unit #1HH36734608 | 10,500 |
| 650250 | Dec 4, 2007 | Dec 4, 2007 | XTO Energy Inc. | Johnson | River Bend #1HH25132392 | 12,000 |
| 650250Amendment | Dec 4, 2007 | Dec 4, 2007 | XTO Energy Inc. | Johnson | River Bend #1HH25132392 | 12,000 |
| 650250Amendment | Dec 4, 2007 | Dec 4, 2007 | XTO Energy Inc. | Johnson | River Bend #1HH25132392 | 12,000 |
| 650199 | Dec 4, 2007 | Dec 4, 2007 | XTO Energy Inc. | Marion | Burks #131530942 | 12,200 |
| 650079 | Nov 30, 2007 | Nov 30, 2007 | XTO Energy Inc. | Johnson | Dixon Unit #1HH25132386 | 11,000 |
| 650079Amendment | Nov 30, 2007 | Nov 30, 2007 | XTO Energy Inc. | Johnson | Dixon Unit #1HH25132386 | 11,000 |
| 650079Amendment | Nov 30, 2007 | Nov 30, 2007 | XTO Energy Inc. | Johnson | Dixon Unit #1HH25132386 | 11,000 |
| 649927 | Nov 29, 2007 | Nov 29, 2007 | XTO Energy Inc. | Limestone | W. O. Stone Gas Unit No. 1 #1529332065 | 14,200 |
| 649918 | Nov 29, 2007 | Nov 29, 2007 | XTO Energy Inc. | Freestone | Gilliam "B" No. 1 Gas Unit #216131195 | 12,000 |
| 649644 | Nov 29, 2007 | Nov 29, 2007 | XTO Energy Inc. | Zapata | F.D. Laurel "A" #1350536027 | 14,500 |
| 649419 | Nov 28, 2007 | Nov 28, 2007 | XTO Energy Inc. | Tarrant | Edwards B Unit #2HH43932872 | 11,000 |
| 649419Amendment | Nov 28, 2007 | Nov 28, 2007 | XTO Energy Inc. | Tarrant | Edwards Ranch B Unit #2HH43932872 | 11,000 |
| 649825 | Nov 26, 2007 | Nov 26, 2007 | XTO Energy Inc. | Gaines | H & J Unit 451 #5HH16501734 | 10,800 |
| 649633 | Nov 26, 2007 | Nov 26, 2007 | XTO Energy Inc. | Freestone | Eppes Unit #416134047 | 15,000 |
| 649668 | Nov 21, 2007 | Nov 21, 2007 | XTO Energy Inc. | Freestone | Orand Gas Unit No. 1 #716134052 | 13,000 |
| 649668Amendment | Nov 21, 2007 | Nov 21, 2007 | XTO Energy Inc. | Freestone | Orand Gas Unit No. 1 #716134052 | 13,000 |
| 649557 | Nov 21, 2007 | Nov 21, 2007 | XTO Energy Inc. | Ector | C. A. Goldsmith #180013539393 | 6,800 |
| 649663 | Nov 20, 2007 | Nov 20, 2007 | XTO Energy Inc. | Freestone | Orand Gas Unit No. 1 #416134049 | 12,900 |
| 649660 | Nov 20, 2007 | Nov 20, 2007 | XTO Energy Inc. | Freestone | Moody Estate #716134048 | 13,000 |
| 649660Amendment | Nov 20, 2007 | Nov 20, 2007 | XTO Energy Inc. | Freestone | Moody Estate #716134048 | 13,000 |
| 649626 | Nov 20, 2007 | Nov 20, 2007 | XTO Energy Inc. | Limestone | Fern V. Robinson Gas Unit #329332064 | 15,200 |
| 649626Amendment | Nov 20, 2007 | Nov 20, 2007 | XTO Energy Inc. | Limestone | Fern V. Robinson Gas Unit #329332064 | 15,200 |
| 647739 | Nov 20, 2007 | Nov 20, 2007 | XTO Energy Inc. | Freestone | Bailey "A" #216131306 | 9,800 |
| 639964Amendment | Nov 20, 2007 | Nov 20, 2007 | XTO Energy Inc. | Houston | Crockett, Davy "A" #222531110 | 15,000 |
| 649573 | Nov 19, 2007 | Nov 19, 2007 | XTO Energy Inc. | Ector | Goldsmith, C. A. #180713539400 | 6,800 |
| 649572 | Nov 19, 2007 | Nov 19, 2007 | XTO Energy Inc. | Ector | Goldsmith, C. A. #180613539399 | 6,800 |
| 649571 | Nov 19, 2007 | Nov 19, 2007 | XTO Energy Inc. | Ector | Goldsmith, C. A. #180513539398 | 6,800 |
| 649569 | Nov 19, 2007 | Nov 19, 2007 | XTO Energy Inc. | Ector | Goldsmith, C. A. #180413539397 | 6,800 |
| 649569Amendment | Nov 19, 2007 | Nov 19, 2007 | XTO Energy Inc. | Ector | Goldsmith, C. A. #180413539397 | 6,800 |
| 649568 | Nov 19, 2007 | Nov 19, 2007 | XTO Energy Inc. | Ector | Goldsmith, C. A. #1803H13539396 | 6,800 |
| 649568Amendment | Nov 19, 2007 | Nov 19, 2007 | XTO Energy Inc. | Ector | Goldsmith, C. A. #180313539396 | 6,800 |
| 649563 | Nov 19, 2007 | Nov 19, 2007 | XTO Energy Inc. | Ector | Goldsmith, C. A. #180213539401 | 6,800 |
| 649560 | Nov 19, 2007 | Nov 19, 2007 | XTO Energy Inc. | Ector | Goldsmith, C. A. #180113539395 | 6,800 |
| 649514 | Nov 19, 2007 | Nov 19, 2007 | XTO Energy Inc. | Tarrant | Manning Trwd D Unit #4HH43932848 | 11,000 |
| 649514Amendment | Nov 19, 2007 | Nov 19, 2007 | XTO Energy Inc. | Tarrant | Manning-Trwd D Unit #4HH43932848 | 11,000 |
| 649512 | Nov 19, 2007 | Nov 19, 2007 | XTO Energy Inc. | Tarrant | Carter NE Unit #B 8HH43932847 | 11,000 |
| 649512Amendment | Nov 19, 2007 | Nov 19, 2007 | XTO Energy Inc. | Tarrant | Carter NE Unit #B 8HH43932847 | 11,000 |
| 606443Amendment | Nov 19, 2007 | Nov 19, 2007 | XTO Energy Inc. | Tarrant | Siddons Unit #2HH43931360 | 11,000 |
| 649494 | Nov 16, 2007 | Nov 16, 2007 | XTO Energy Inc. | Freestone | W. H. Day, et al Gas Unit #1 #716134046 | 13,000 |
| 649494Amendment | Nov 16, 2007 | Nov 16, 2007 | XTO Energy Inc. | Freestone | W. H. Day, et al Gas Unit #1 #716134046 | 13,000 |
| 649409 | Nov 16, 2007 | Nov 16, 2007 | XTO Energy Inc. | Tarrant | Bonham Unit #C 1HH43932843 | 11,000 |
| 649409Amendment | Nov 16, 2007 | Nov 16, 2007 | XTO Energy Inc. | Tarrant | Bonham Unit #C 1HH43932843 | 11,000 |
| 649409Amendment | Nov 16, 2007 | Nov 16, 2007 | XTO Energy Inc. | Tarrant | Bonham Unit #C 1HH43932843 | 11,000 |
| 649278 | Nov 15, 2007 | Nov 15, 2007 | XTO Energy Inc. | Harrison | Oney, Henry #920334183 | 12,500 |
| 649195 | Nov 14, 2007 | Nov 14, 2007 | XTO Energy Inc. | Cherokee | Chronister Heirs #3107331315 | 12,800 |
| 649191 | Nov 14, 2007 | Nov 14, 2007 | XTO Energy Inc. | Cherokee | Chronister Heirs #3007331314 | 12,700 |
| 649190 | Nov 14, 2007 | Nov 14, 2007 | XTO Energy Inc. | Cherokee | Chronister Heirs #2807331313 | 12,800 |
| 649187 | Nov 14, 2007 | Nov 14, 2007 | XTO Energy Inc. | Cherokee | Chronister Heirs #2707331312 | 12,800 |
| 649169 | Nov 14, 2007 | Nov 14, 2007 | XTO Energy Inc. | Cherokee | Chronister Heirs #2607331311 | 12,800 |
| 649166 | Nov 14, 2007 | Nov 14, 2007 | XTO Energy Inc. | Cherokee | Chronister Heirs #2507331463 | 12,800 |
| 649163 | Nov 14, 2007 | Nov 14, 2007 | XTO Energy Inc. | Cherokee | Chronister Heirs #2407331309 | 12,700 |
| 649161 | Nov 14, 2007 | Nov 14, 2007 | XTO Energy Inc. | Freestone | Bragg Gas Unit #116134045 | 12,700 |
| 628085Amendment | Nov 12, 2007 | Nov 12, 2007 | XTO Energy Inc. | Tarrant | Trwd Girl Scout Unit #1HH43931804 | 11,000 |
| 648996 | Nov 9, 2007 | Nov 9, 2007 | XTO Energy Inc. | Cherokee | Chronister Heirs #2307331462 | 12,800 |
| 648994 | Nov 9, 2007 | Nov 9, 2007 | XTO Energy Inc. | Cherokee | Chronister Heirs #2207331307 | 12,800 |
| 648994Amendment | Nov 9, 2007 | Nov 9, 2007 | XTO Energy Inc. | Cherokee | Chronister Heirs #2207331307 | 12,800 |
| 648990 | Nov 9, 2007 | Nov 9, 2007 | XTO Energy Inc. | Freestone | Foreman "B" No. 1 Gas Unit #116131024 | 11,875 |
| 648990Amendment | Nov 9, 2007 | Nov 9, 2007 | XTO Energy Inc. | Freestone | Foreman "B" No. 1 Gas Unit #116131024 | 11,875 |
| 648987 | Nov 9, 2007 | Nov 9, 2007 | XTO Energy Inc. | Cherokee | Chronister Heirs #2007331461 | 12,800 |
| 648984 | Nov 9, 2007 | Nov 9, 2007 | XTO Energy Inc. | Cherokee | Chronister Heirs #1907331304 | 12,700 |
| 648956 | Nov 9, 2007 | Nov 9, 2007 | XTO Energy Inc. | Cherokee | Chronister Heirs #1807331303 | 12,800 |
| 648942 | Nov 9, 2007 | Nov 9, 2007 | XTO Energy Inc. | Tarrant | Carter B Unit #7HH43932834 | 13,000 |
| 648942Amendment | Nov 9, 2007 | Nov 9, 2007 | XTO Energy Inc. | Tarrant | Carter B Unit #7HH43932834 | 13,000 |
| 648938 | Nov 9, 2007 | Nov 9, 2007 | XTO Energy Inc. | Cherokee | Chronister Heirs #707331460 | 12,800 |
| 648891 | Nov 8, 2007 | Nov 8, 2007 | XTO Energy Inc. | Tarrant | Indian Creek #E 8HH43932823 | 11,000 |
| 648891Amendment | Nov 8, 2007 | Nov 8, 2007 | XTO Energy Inc. | Tarrant | Indian Creek #E 8HH43932823 | 11,000 |
| 648891Amendment | Nov 8, 2007 | Nov 8, 2007 | XTO Energy Inc. | Tarrant | Indian Creek #E 8HH43932823 | 11,000 |
| 648889 | Nov 8, 2007 | Nov 8, 2007 | XTO Energy Inc. | Tarrant | Indian Creek #L 7HH43932822 | 11,000 |
| 648889Amendment | Nov 8, 2007 | Nov 8, 2007 | XTO Energy Inc. | Tarrant | Indian Creek #L 7HH43932822 | 11,000 |
| 648889Amendment | Nov 8, 2007 | Nov 8, 2007 | XTO Energy Inc. | Tarrant | Indian Creek #L 7HH43932822 | 11,000 |
| 648828 | Nov 8, 2007 | Nov 8, 2007 | XTO Energy Inc. | Ector | Connell, W. E. NCT-7 #5313501444 | 7,630 |
| 648886 | Nov 7, 2007 | Nov 7, 2007 | XTO Energy Inc. | Tarrant | Indian Creek #L 8HH43932821 | 11,000 |
| 648886Amendment | Nov 7, 2007 | Nov 7, 2007 | XTO Energy Inc. | Tarrant | Indian Creek #L 8HH43932821 | 11,000 |
| 648830 | Nov 7, 2007 | Nov 7, 2007 | XTO Energy Inc. | Johnson | Shipman Unit #A 2HH25132342 | 13,000 |
| 648830Amendment | Nov 7, 2007 | Nov 7, 2007 | XTO Energy Inc. | Johnson | Shipman Unit #A 2HH25132342 | 13,000 |
| 648802 | Nov 7, 2007 | Nov 7, 2007 | XTO Energy Inc. | Tarrant | Trwd #M 2HH43932809 | 11,000 |
| 648802Amendment | Nov 7, 2007 | Nov 7, 2007 | XTO Energy Inc. | Tarrant | Trwd #M 2HH43932809 | 11,000 |
| 648802Amendment | Nov 7, 2007 | Nov 7, 2007 | XTO Energy Inc. | Tarrant | Trwd #M 2HH43932809 | 11,000 |
| 648736 | Nov 7, 2007 | Nov 7, 2007 | XTO Energy Inc. | Tarrant | Freddie Unit #3HH43932806 | 11,000 |
| 648736Amendment | Nov 7, 2007 | Nov 7, 2007 | XTO Energy Inc. | Tarrant | Freddie Unit #3HH43932806 | 11,000 |
| 643478 | Nov 7, 2007 | Nov 7, 2007 | XTO Energy Inc. | Franklin | New Hope Unit #220315930545 | 9,500 |
| 648731 | Nov 6, 2007 | Nov 6, 2007 | XTO Energy Inc. | Denton | Willis Unit #3HH12133254 | 10,000 |
| 648677 | Nov 6, 2007 | Nov 6, 2007 | XTO Energy Inc. | Limestone | H. D. Thomas, et al Gas Unit #1029332059 | 13,400 |
| 648628 | Nov 6, 2007 | Nov 6, 2007 | XTO Energy Inc. | Houston | Shirey Gas Unit #122531121 | 13,000 |
| 648628Amendment | Nov 6, 2007 | Nov 6, 2007 | XTO Energy Inc. | Houston | Shirey Gas Unit #122531121 | 13,000 |
| 642977 | Nov 6, 2007 | Nov 6, 2007 | XTO Energy Inc. | Franklin | New Hope Unit #150215930538 | 9,000 |
| 648634 | Nov 5, 2007 | Nov 5, 2007 | XTO Energy Inc. | Denton | Lunt Unit #1HH12133253 | 12,000 |
| 648634Amendment | Nov 5, 2007 | Nov 5, 2007 | XTO Energy Inc. | Denton | Lunt Unit #1HH12133253 | 12,000 |
| 648634Amendment | Nov 5, 2007 | Nov 5, 2007 | XTO Energy Inc. | Denton | Lunt Unit #1HH12133253 | 12,000 |
| 648583 | Nov 5, 2007 | Nov 5, 2007 | XTO Energy Inc. | Limestone | Reed Gas Unit II #929332057 | 14,500 |
| 643518 | Nov 5, 2007 | Nov 5, 2007 | XTO Energy Inc. | Robertson | Karraker Gas Unit #139531349 | 14,000 |
| 648535 | Nov 2, 2007 | Nov 2, 2007 | XTO Energy Inc. | Freestone | C.A. Newsom Gas Unit #3816134041 | 13,400 |
| 648539 | Nov 1, 2007 | Nov 1, 2007 | XTO Energy Inc. | Limestone | S.J. Harlow Gas Unit #1329332056 | 13,200 |
| 648472 | Oct 31, 2007 | Oct 31, 2007 | XTO Energy Inc. | Freestone | Wylie Gas Unit #116134040 | 13,000 |
| 648401 | Oct 31, 2007 | Oct 31, 2007 | XTO Energy Inc. | Gaines | H & J Unit 1 "D" #1716501603 | 11,050 |
| 647793 | Oct 30, 2007 | Oct 30, 2007 | XTO Energy Inc. | Zapata | Laurel, F. D. #1250536006 | 14,800 |
| 648210 | Oct 29, 2007 | Oct 29, 2007 | XTO Energy Inc. | Tarrant | Longhorn #A 1HH43932780 | 11,000 |