| 630269Amendment | Dec 13, 2006 | Dec 13, 2006 | XTO Energy Inc. | Tarrant | Wildlife A W Unit #5HH43931875 | 12,000 |
| 629529 | Dec 13, 2006 | Dec 13, 2006 | XTO Energy Inc. | Freestone | Henderson-Lott No. 1 Gas Unit #1116133788 | 13,500 |
| 629529Amendment | Dec 13, 2006 | Dec 13, 2006 | XTO Energy Inc. | Freestone | Henderson-Lott No. 1 Gas Unit #1116133788 | 13,500 |
| 630394 | Dec 12, 2006 | Dec 12, 2006 | XTO Energy Inc. | Terry | Prentice Northeast Unit #49044532166 | 7,600 |
| 630366 | Dec 12, 2006 | Dec 12, 2006 | XTO Energy Inc. | Parker | Hills of Bear Creek #A 1HH36734275 | 11,000 |
| 630362 | Dec 12, 2006 | Dec 12, 2006 | XTO Energy Inc. | Hood | Black Ranch North A #D 1HH22131243 | 11,000 |
| 630358 | Dec 12, 2006 | Dec 12, 2006 | XTO Energy Inc. | Hood | Black Ranch North B #C 1HH22131242 | 11,000 |
| 630358Amendment | Dec 12, 2006 | Dec 12, 2006 | XTO Energy Inc. | Hood | Black Ranch North B #C 1HH22131242 | 10,000 |
| 630218 | Dec 12, 2006 | Dec 12, 2006 | XTO Energy Inc. | Tarrant | Roeser Trwd Unit B #1HH43931879 | 12,000 |
| 630218Amendment | Dec 12, 2006 | Dec 12, 2006 | XTO Energy Inc. | Tarrant | Roeser Trwd Unit B #1HH43931879 | 11,000 |
| 630272 | Dec 11, 2006 | Dec 11, 2006 | XTO Energy Inc. | Tarrant | Quarry #B 2HH43931876 | 11,000 |
| 630272Amendment | Dec 11, 2006 | Dec 11, 2006 | XTO Energy Inc. | Tarrant | Quarry #B 2HH43931876 | 11,000 |
| 630271 | Dec 11, 2006 | Dec 11, 2006 | XTO Energy Inc. | Tarrant | Quarry #B 1HH43931874 | 12,000 |
| 630271Amendment | Dec 11, 2006 | Dec 11, 2006 | XTO Energy Inc. | Tarrant | Quarry #B 1HH43931874 | 12,000 |
| 630270 | Dec 11, 2006 | Dec 11, 2006 | XTO Energy Inc. | Tarrant | Trwd Tapp Unit #2HH43931873 | 12,000 |
| 630270Amendment | Dec 11, 2006 | Dec 11, 2006 | XTO Energy Inc. | Tarrant | Trwd Tapp Unit #2HH43931873 | 12,000 |
| 630268 | Dec 11, 2006 | Dec 11, 2006 | XTO Energy Inc. | Hood | Bratten Ranch #14HH22131241 | 11,000 |
| 630268Amendment | Dec 11, 2006 | Dec 11, 2006 | XTO Energy Inc. | Hood | Bratten Ranch #14HH22131241 | 11,000 |
| 630267 | Dec 11, 2006 | Dec 11, 2006 | XTO Energy Inc. | Johnson | Glass Calahan Unit #1HH25131367 | 12,000 |
| 630267Amendment | Dec 11, 2006 | Dec 11, 2006 | XTO Energy Inc. | Johnson | Glass Calahan Unit #1HH25131367 | 11,000 |
| 630266 | Dec 11, 2006 | Dec 11, 2006 | XTO Energy Inc. | Tarrant | Semones Murphy Unit #1HH43931872 | 11,500 |
| 630266Amendment | Dec 11, 2006 | Dec 11, 2006 | XTO Energy Inc. | Tarrant | Semones Murphy Unit #1HH43931872 | 11,500 |
| 630216 | Dec 8, 2006 | Dec 8, 2006 | XTO Energy Inc. | Tarrant | C. V. Moore Unit #B 3HH43931870 | 12,000 |
| 630216Amendment | Dec 8, 2006 | Dec 8, 2006 | XTO Energy Inc. | Tarrant | C. V. Moore Unit #B 3HH43931870 | 12,000 |
| 630216Amendment | Dec 8, 2006 | Dec 8, 2006 | XTO Energy Inc. | Tarrant | C. V. Moore Unit #B 3HH43931870 | 12,000 |
| 630176 | Dec 8, 2006 | Dec 8, 2006 | XTO Energy Inc. | Terry | Prentice Northeast Unit #4844500534 | 7,500 |
| 629203 | Dec 8, 2006 | Dec 8, 2006 | XTO Energy Inc. | Freestone | Martha Jones Gas Unit #116133787 | 12,300 |
| 629203Amendment | Dec 8, 2006 | Dec 8, 2006 | XTO Energy Inc. | Freestone | Martha Jones Gas Unit #116133787 | 12,300 |
| 629284 | Dec 7, 2006 | Dec 7, 2006 | XTO Energy Inc. | Freestone | Curry Gas Unit #916133786 | 13,000 |
| 629281 | Dec 7, 2006 | Dec 7, 2006 | XTO Energy Inc. | Cherokee | Chronister Heirs #607331218 | 13,500 |
| 629281Amendment | Dec 7, 2006 | Dec 7, 2006 | XTO Energy Inc. | Cherokee | Chronister Heirs #607331218 | 13,500 |
| 629212 | Dec 7, 2006 | Dec 7, 2006 | XTO Energy Inc. | Rusk | Henderson "E" #940134158 | 12,000 |
| 629211 | Dec 7, 2006 | Dec 7, 2006 | XTO Energy Inc. | Panola | Txu-Tompkins #336536424 | 12,000 |
| 629209 | Dec 7, 2006 | Dec 7, 2006 | XTO Energy Inc. | Freestone | Fulton "A" #816133784 | 14,000 |
| 629209Amendment | Dec 7, 2006 | Dec 7, 2006 | XTO Energy Inc. | Freestone | Fulton "A" #816133784 | 14,000 |
| 629208 | Dec 7, 2006 | Dec 7, 2006 | XTO Energy Inc. | Freestone | Fulton "A" #916133783 | 15,000 |
| 628658 | Dec 7, 2006 | Dec 7, 2006 | XTO Energy Inc. | Robertson | Duncan Gas Unit No. 2 #1739531207 | 13,900 |
| 630066 | Dec 6, 2006 | Dec 6, 2006 | XTO Energy Inc. | Tarrant | Trwd Gantt C Unit #1HH43931868 | 11,000 |
| 630066Amendment | Dec 6, 2006 | Dec 6, 2006 | XTO Energy Inc. | Tarrant | Trwd Gantt C Unit #1HH43931868 | 11,000 |
| 630065 | Dec 6, 2006 | Dec 6, 2006 | XTO Energy Inc. | Tarrant | Trwd Tapp Unit #1HH43931867 | 11,000 |
| 630065Amendment | Dec 6, 2006 | Dec 6, 2006 | XTO Energy Inc. | Tarrant | Trwd Tapp Unit #1HH43931867 | 11,000 |
| 630057 | Dec 6, 2006 | Dec 6, 2006 | XTO Energy Inc. | Tarrant | Crumbie Unit #A 3HH43931865 | 12,000 |
| 630057Amendment | Dec 6, 2006 | Dec 6, 2006 | XTO Energy Inc. | Tarrant | Crumbie Unit #A 3HH43931865 | 12,000 |
| 630051 | Dec 6, 2006 | Dec 6, 2006 | XTO Energy Inc. | Parker | Wiese Unit #A 2HH36734264 | 10,000 |
| 630051Amendment | Dec 6, 2006 | Dec 6, 2006 | XTO Energy Inc. | Parker | Wiese Unit #A 2HH36734264 | 10,000 |
| 630042 | Dec 6, 2006 | Dec 6, 2006 | XTO Energy Inc. | Ector | Connell, W. E. NCT-3 #4513501451 | 8,950 |
| 629307 | Dec 6, 2006 | Dec 6, 2006 | XTO Energy Inc. | Terry | Prentice Northeast Unit #51444532164 | 7,600 |
| 629304 | Dec 6, 2006 | Dec 6, 2006 | XTO Energy Inc. | Terry | Prentice Northeast Unit #53344532163 | 7,600 |
| 629302 | Dec 6, 2006 | Dec 6, 2006 | XTO Energy Inc. | Terry | Prentice Northeast Unit #71744532161 | 7,500 |
| 629262 | Dec 6, 2006 | Dec 6, 2006 | XTO Energy Inc. | Ector | Goldsmith, C.A. et Al #698W13501076 | 6,150 |
| 628884 | Dec 6, 2006 | Dec 6, 2006 | XTO Energy Inc. | Andrews | State University BA #1500339993 | 5,300 |
| 628881 | Dec 6, 2006 | Dec 6, 2006 | XTO Energy Inc. | Andrews | State Univerisity BA #1600339992 | 5,300 |
| 629958 | Dec 5, 2006 | Dec 5, 2006 | XTO Energy Inc. | Ector | Penwell Unit #434513501528 | 3,950 |
| 629946Amendment | Dec 5, 2006 | Dec 5, 2006 | XTO Energy Inc. | Johnson | Sessum Unit #1 HH25131358 | 11,000 |
| 629857 | Dec 5, 2006 | Dec 5, 2006 | XTO Energy Inc. | Ector | Goldsmith, C. A. #171613539257 | 6,700 |
| 629855 | Dec 5, 2006 | Dec 5, 2006 | XTO Energy Inc. | Ector | Goldsmith, C. A. #171813539256 | 7,000 |
| 629852 | Dec 5, 2006 | Dec 5, 2006 | XTO Energy Inc. | Ector | Goldsmith, C. A. #172013539255 | 7,000 |
| 629851 | Dec 5, 2006 | Dec 5, 2006 | XTO Energy Inc. | Ector | Goldsmith, C. A. #171413539254 | 6,700 |
| 629833 | Dec 5, 2006 | Dec 5, 2006 | XTO Energy Inc. | Ector | Goldsmith, C. A. #171013539253 | 7,000 |
| 629831 | Dec 5, 2006 | Dec 5, 2006 | XTO Energy Inc. | Ector | Goldsmith, C. A. #170713539252 | 7,000 |
| 629830 | Dec 5, 2006 | Dec 5, 2006 | XTO Energy Inc. | Ector | Goldsmith, C. A. #170513539251 | 7,000 |
| 629827 | Dec 5, 2006 | Dec 5, 2006 | XTO Energy Inc. | Ector | Goldsmith, C. A. #170313539250 | 7,000 |
| 629439 | Dec 5, 2006 | Dec 5, 2006 | XTO Energy Inc. | Ector | Goldsmith, C. A. #171513539259 | 7,000 |
| 629119 | Dec 5, 2006 | Dec 5, 2006 | XTO Energy Inc. | Robertson | Baulch #439531212 | 13,900 |
| 629908 | Dec 4, 2006 | Dec 4, 2006 | XTO Energy Inc. | Ector | Connell, W. E. NCT-1 #4013501456 | 8,950 |
| 629740 | Dec 4, 2006 | Dec 4, 2006 | XTO Energy Inc. | Gaines | Russell Clearfork Unit #44816536700 | 9,000 |
| 628986 | Dec 4, 2006 | Dec 4, 2006 | XTO Energy Inc. | Panola | Holmes, S. L. #1736536020 | 10,300 |
| 629782 | Dec 1, 2006 | Dec 1, 2006 | XTO Energy Inc. | Tarrant | Roeser Trwd Unit #A 1HH43931861 | 11,000 |
| 629782Amendment | Dec 1, 2006 | Dec 1, 2006 | XTO Energy Inc. | Tarrant | Roeser Trwd a Unit #1HH43931861 | 11,000 |
| 629735 | Dec 1, 2006 | Dec 1, 2006 | XTO Energy Inc. | Gaines | Russell Clearfork Unit #45216536699 | 9,000 |
| 629734 | Dec 1, 2006 | Dec 1, 2006 | XTO Energy Inc. | Gaines | Russell Clearfork Unit #45116536698 | 9,000 |
| 629733 | Dec 1, 2006 | Dec 1, 2006 | XTO Energy Inc. | Gaines | Russell Clearfork Unit #44916536697 | 9,000 |
| 629731 | Dec 1, 2006 | Dec 1, 2006 | XTO Energy Inc. | Gaines | Russell Clearfork Unit #44716536696 | 9,000 |
| 629728 | Dec 1, 2006 | Dec 1, 2006 | XTO Energy Inc. | Gaines | Russell Clearfork Unit #44416536695 | 8,500 |
| 629778 | Nov 30, 2006 | Nov 30, 2006 | XTO Energy Inc. | Yoakum | Mahoney, H. O. #12550135399 | 8,600 |
| 629777 | Nov 30, 2006 | Nov 30, 2006 | XTO Energy Inc. | Yoakum | Mahoney, H. O. #12450135398 | 8,600 |
| 629775 | Nov 30, 2006 | Nov 30, 2006 | XTO Energy Inc. | Yoakum | Mahoney, H. O. #12350135397 | 8,600 |
| 629770 | Nov 30, 2006 | Nov 30, 2006 | XTO Energy Inc. | Yoakum | Mahoney, H. O. #12250135396 | 8,600 |
| 629769 | Nov 30, 2006 | Nov 30, 2006 | XTO Energy Inc. | Yoakum | Mahoney, H. O. #12150135395 | 8,600 |
| 629725 | Nov 30, 2006 | Nov 30, 2006 | XTO Energy Inc. | Gaines | Russell Clearfork Unit #32416536694 | 9,000 |
| 629723 | Nov 30, 2006 | Nov 30, 2006 | XTO Energy Inc. | Gaines | Russell Clearfork Unit #32316536693 | 9,000 |
| 629721 | Nov 30, 2006 | Nov 30, 2006 | XTO Energy Inc. | Gaines | Russell Clearfork Unit #32216536692 | 9,000 |
| 629719 | Nov 30, 2006 | Nov 30, 2006 | XTO Energy Inc. | Gaines | Russell Clearfork Unit #32116536690 | 9,000 |
| 629718 | Nov 30, 2006 | Nov 30, 2006 | XTO Energy Inc. | Gaines | Russell Clearfork Unit #41916536691 | 8,500 |
| 629595 | Nov 29, 2006 | Nov 29, 2006 | XTO Energy Inc. | Terry | Prentice Northeast Unit #74744532160 | 7,600 |
| 629594 | Nov 29, 2006 | Nov 29, 2006 | XTO Energy Inc. | Terry | Prentice Northeast Unit #64744532159 | 7,600 |
| 629590 | Nov 29, 2006 | Nov 29, 2006 | XTO Energy Inc. | Tarrant | Mouser Unit #B 1HH43931857 | 10,000 |
| 629590Amendment | Nov 29, 2006 | Nov 29, 2006 | XTO Energy Inc. | Tarrant | Mouser Unit #B 1HH43931857 | 10,000 |
| 628811 | Nov 29, 2006 | Nov 29, 2006 | XTO Energy Inc. | Limestone | McKenzie "B" Gas Unit #129331564 | 14,000 |
| 629588 | Nov 28, 2006 | Nov 28, 2006 | XTO Energy Inc. | Johnson | Roof #3HH25131340 | 12,000 |
| 629588Amendment | Nov 28, 2006 | Nov 28, 2006 | XTO Energy Inc. | Johnson | Roof #3HH25131340 | 10,250 |
| 629587 | Nov 28, 2006 | Nov 28, 2006 | XTO Energy Inc. | Johnson | Roof #2HH25131339 | 12,000 |
| 629587Amendment | Nov 28, 2006 | Nov 28, 2006 | XTO Energy Inc. | Johnson | Roof #2HH25131339 | 12,000 |
| 628886 | Nov 28, 2006 | Nov 28, 2006 | XTO Energy Inc. | Freestone | H.E. Wynne Gas Unit #116133776 | 11,700 |
| 628814 | Nov 28, 2006 | Nov 28, 2006 | XTO Energy Inc. | Limestone | Hudson "A" #529331629 | 13,200 |
| 629431 | Nov 27, 2006 | Nov 27, 2006 | XTO Energy Inc. | Ector | C.A. Goldsmith #170613539240 | 7,000 |
| 628711 | Nov 27, 2006 | Nov 27, 2006 | XTO Energy Inc. | Limestone | Parker, G. B. & Sons #429331895 | 11,800 |
| 629440 | Nov 22, 2006 | Nov 22, 2006 | XTO Energy Inc. | Ector | C.A. Goldsmith #171313539241 | 7,000 |
| 628977 | Nov 22, 2006 | Nov 22, 2006 | XTO Energy Inc. | Tarrant | Sid Richardson #C 3HH43931840 | 11,000 |
| 628976 | Nov 22, 2006 | Nov 22, 2006 | XTO Energy Inc. | Tarrant | Sid Richarson #C 2HH43931837 | 11,000 |