| 643753 | Sep 7, 2007 | Sep 7, 2007 | XTO Energy Inc. | Freestone | Boyd "a" Gas Unit #416133998 | 12,900 |
| 643753Amendment | Sep 7, 2007 | Sep 7, 2007 | XTO Energy Inc. | Freestone | Boyd "a" Gas Unit #416133998 | 12,900 |
| 643521 | Sep 7, 2007 | Sep 7, 2007 | XTO Energy Inc. | Freestone | Knight "a" II Gas Unit #416133997 | 13,700 |
| 643444 | Sep 7, 2007 | Sep 7, 2007 | XTO Energy Inc. | Limestone | Griffiths Gas Unit No. 1 #729332011 | 12,700 |
| 643434 | Sep 7, 2007 | Sep 7, 2007 | XTO Energy Inc. | Franklin | New Hope Unit #680215930544 | 9,500 |
| 642984 | Sep 7, 2007 | Sep 7, 2007 | XTO Energy Inc. | Robertson | Biggs #1 Gas Unit #539531329 | 13,500 |
| 641917 | Sep 7, 2007 | Sep 7, 2007 | XTO Energy Inc. | Johnson | Forston Burton Kirkland Unit #A 2HH25131999 | 12,000 |
| 645569 | Sep 6, 2007 | Sep 6, 2007 | XTO Energy Inc. | Lavaca | Freeman #1328533424 | 15,200 |
| 645567 | Sep 6, 2007 | Sep 6, 2007 | XTO Energy Inc. | Willacy | Petru, V. A. #948931186 | 15,200 |
| 645450 | Sep 6, 2007 | Sep 6, 2007 | XTO Energy Inc. | Limestone | Kennedy "A" #229331628 | 13,500 |
| 640895 | Sep 6, 2007 | Sep 6, 2007 | XTO Energy Inc. | Limestone | Beachcomber Gas Unit No. 2 #829332010 | 14,000 |
| 639649 | Sep 6, 2007 | Sep 6, 2007 | XTO Energy Inc. | Freestone | Kirsch Gas Unit #1416134003 | 13,000 |
| 645254 | Sep 5, 2007 | Sep 5, 2007 | XTO Energy Inc. | Lavaca | Sibley Estate #428532623 | 15,000 |
| 645292 | Sep 4, 2007 | Sep 4, 2007 | XTO Energy Inc. | Freestone | Cosson Gas Unit #1216134002 | 13,100 |
| 645283 | Aug 31, 2007 | Aug 31, 2007 | XTO Energy Inc. | Freestone | Barnett Gas Unit #816134001 | 13,300 |
| 645232 | Aug 31, 2007 | Aug 31, 2007 | XTO Energy Inc. | Limestone | Phillips "a" #1 Gas Unit #1729332016 | 15,000 |
| 645232Amendment | Aug 31, 2007 | Aug 31, 2007 | XTO Energy Inc. | Limestone | Phillips "a" #1 Gas Unit #1729332016 | 15,000 |
| 645257 | Aug 30, 2007 | Aug 30, 2007 | XTO Energy Inc. | Lavaca | Fitzhenry #1R28532710 | 14,077 |
| 645237 | Aug 30, 2007 | Aug 30, 2007 | XTO Energy Inc. | Limestone | Phillips "a" #1 Gas Unit #1129332017 | 14,500 |
| 645236 | Aug 30, 2007 | Aug 30, 2007 | XTO Energy Inc. | Limestone | Standley Gas Unit No. 1 #7HH29332018 | 17,000 |
| 645234 | Aug 30, 2007 | Aug 30, 2007 | XTO Energy Inc. | Freestone | Watson, E. M. #116134000 | 12,700 |
| 645230 | Aug 30, 2007 | Aug 30, 2007 | XTO Energy Inc. | Henderson | Ogu (Magers, T. M.-6) #10821330545 | 12,765 |
| 645229 | Aug 30, 2007 | Aug 30, 2007 | XTO Energy Inc. | Tarrant | Assembly of God Unit #3HH43932628 | 11,000 |
| 645225 | Aug 30, 2007 | Aug 30, 2007 | XTO Energy Inc. | Tarrant | Oakmont #1HH43932627 | 11,000 |
| 643520Amendment | Aug 30, 2007 | Aug 30, 2007 | XTO Energy Inc. | Robertson | Griffin #139531318 | 17,000 |
| 643012 | Aug 30, 2007 | Aug 30, 2007 | XTO Energy Inc. | Johnson | Harper Nej East #C 2AHH25132079 | 12,000 |
| 643012Amendment | Aug 30, 2007 | Aug 30, 2007 | XTO Energy Inc. | Johnson | Harper Nej East #C 2AHH25132079 | 12,000 |
| 643011 | Aug 30, 2007 | Aug 30, 2007 | XTO Energy Inc. | Johnson | Harper Nej West #B 2CHH25132078 | 12,000 |
| 643011Amendment | Aug 30, 2007 | Aug 30, 2007 | XTO Energy Inc. | Johnson | Harper Nej West #B 2CHH25132078 | 12,000 |
| 642868 | Aug 30, 2007 | Aug 30, 2007 | XTO Energy Inc. | Gaines | H & J Unit 1D #24HH16501606 | 11,000 |
| 645134 | Aug 29, 2007 | Aug 29, 2007 | XTO Energy Inc. | Erath | Shoebar Ranch #J 1HH14331258 | 10,000 |
| 645134Amendment | Aug 29, 2007 | Aug 29, 2007 | XTO Energy Inc. | Erath | Shoebar Ranch #J 1HH14331258 | 10,000 |
| 645134Amendment | Aug 29, 2007 | Aug 29, 2007 | XTO Energy Inc. | Erath | Shoebar Ranch #J 1HH14331258 | 10,000 |
| 645134Amendment | Aug 29, 2007 | Aug 29, 2007 | XTO Energy Inc. | Erath | Shoebar Ranch #J 1HH14331258 | 10,000 |
| 645118 | Aug 29, 2007 | Aug 29, 2007 | XTO Energy Inc. | Tarrant | Txu Eml Unit #A 2HH43932623 | 11,000 |
| 645118Amendment | Aug 29, 2007 | Aug 29, 2007 | XTO Energy Inc. | Tarrant | Txu Eml Unit #A 2HH43932623 | 11,000 |
| 645044 | Aug 29, 2007 | Aug 29, 2007 | XTO Energy Inc. | Hood | Black Ranch South #B 2HH22131472 | 11,000 |
| 645044Amendment | Aug 29, 2007 | Aug 29, 2007 | XTO Energy Inc. | Hood | Black Ranch South #B 2HH22131472 | 10,000 |
| 643330 | Aug 28, 2007 | Aug 28, 2007 | XTO Energy Inc. | Franklin | New Hope Deep Unit #76D15930542 | 12,800 |
| 643202 | Aug 28, 2007 | Aug 28, 2007 | XTO Energy Inc. | Freestone | Ham Gas Unit #2316133987 | 13,000 |
| 643191 | Aug 28, 2007 | Aug 28, 2007 | XTO Energy Inc. | Freestone | Boyd-Pickett Gas Unit #916133988 | 13,000 |
| 643075 | Aug 28, 2007 | Aug 28, 2007 | XTO Energy Inc. | Robertson | Homer Lincecum Gas Unit #439531326 | 13,600 |
| 643069 | Aug 28, 2007 | Aug 28, 2007 | XTO Energy Inc. | Robertson | Biggs #1 Gas Unit #1539531325 | 13,500 |
| 643069Amendment | Aug 28, 2007 | Aug 28, 2007 | XTO Energy Inc. | Robertson | Biggs #1 Gas Unit #1539531325 | 13,500 |
| 642528 | Aug 28, 2007 | Aug 28, 2007 | XTO Energy Inc. | Limestone | Hudson "A" #429331053 | 13,200 |
| 642526 | Aug 28, 2007 | Aug 28, 2007 | XTO Energy Inc. | Limestone | Heaton No. 1 Gas Unit #929332006 | 13,200 |
| 644969 | Aug 27, 2007 | Aug 27, 2007 | XTO Energy Inc. | Johnson | Alford Boone Unit #3HH25132186 | 11,000 |
| 644969Amendment | Aug 27, 2007 | Aug 27, 2007 | XTO Energy Inc. | Johnson | Alford Boone Unit #3HH25132186 | 11,000 |
| 644944 | Aug 24, 2007 | Aug 24, 2007 | XTO Energy Inc. | Tarrant | Todd Unit #B 1HH43932616 | 11,000 |
| 644944Amendment | Aug 24, 2007 | Aug 24, 2007 | XTO Energy Inc. | Tarrant | Todd Unit #B 1HH43932616 | 11,000 |
| 644942 | Aug 24, 2007 | Aug 24, 2007 | XTO Energy Inc. | Tarrant | Todd Unit #B 3HH43932615 | 11,000 |
| 644942Amendment | Aug 24, 2007 | Aug 24, 2007 | XTO Energy Inc. | Tarrant | Todd Unit #B 3HH43932615 | 9,950 |
| 644927 | Aug 24, 2007 | Aug 24, 2007 | XTO Energy Inc. | Johnson | Cleburne State Park #3HH25132182 | 12,000 |
| 644927Amendment | Aug 24, 2007 | Aug 24, 2007 | XTO Energy Inc. | Johnson | Cleburne State Park #3HH25132182 | 12,000 |
| 644911 | Aug 24, 2007 | Aug 24, 2007 | XTO Energy Inc. | Tarrant | Christ League E Unit #1HH43932613 | 11,000 |
| 644911Amendment | Aug 24, 2007 | Aug 24, 2007 | XTO Energy Inc. | Tarrant | Christ League E Unit #1HH43932613 | 10,000 |
| 644911Amendment | Aug 24, 2007 | Aug 24, 2007 | XTO Energy Inc. | Tarrant | Christ League E Unit #1HH43932613 | 10,000 |
| 644815 | Aug 24, 2007 | Aug 24, 2007 | XTO Energy Inc. | Freestone | Capps No. 1 Gas Unit #3HH16133993 | 13,300 |
| 644815Amendment | Aug 24, 2007 | Aug 24, 2007 | XTO Energy Inc. | Freestone | Capps No. 1 Gas Unit #3HH16133993 | 13,300 |
| 644733 | Aug 24, 2007 | Aug 24, 2007 | XTO Energy Inc. | Houston | Shartle/CP Gas Unit #122531114 | 13,200 |
| 644732 | Aug 24, 2007 | Aug 24, 2007 | XTO Energy Inc. | Freestone | Newsom, C. A. Estate #3216133992 | 13,500 |
| 644731 | Aug 24, 2007 | Aug 24, 2007 | XTO Energy Inc. | Freestone | Emerson Gas Unit II #116133991 | 11,400 |
| 644465 | Aug 24, 2007 | Aug 24, 2007 | XTO Energy Inc. | Freestone | Knight, Jack Heirs #216133986 | 13,300 |
| 641710 | Aug 24, 2007 | Aug 24, 2007 | XTO Energy Inc. | Tarrant | Ole Gieser Unit #B 2HH43932612 | 12,000 |
| 641710Amendment | Aug 24, 2007 | Aug 24, 2007 | XTO Energy Inc. | Tarrant | Ole Gieser Unit #B 2HH43932612 | 12,000 |
| 644700 | Aug 22, 2007 | Aug 22, 2007 | XTO Energy Inc. | Tarrant | Trwd McNeil a Unit #2HH43932610 | 11,000 |
| 644700Amendment | Aug 22, 2007 | Aug 22, 2007 | XTO Energy Inc. | Tarrant | Trwd McNeil a Unit #2HH43932610 | 11,000 |
| 642446 | Aug 21, 2007 | Aug 21, 2007 | XTO Energy Inc. | Gaines | H & J Unit 1D #19HH16501704 | 10,900 |
| 644462 | Aug 20, 2007 | Aug 20, 2007 | XTO Energy Inc. | Robertson | Cochran Gas Unit #139531322 | 16,800 |
| 644333 | Aug 20, 2007 | Aug 20, 2007 | XTO Energy Inc. | Limestone | Carpenter Gas Unit II #529332005 | 15,000 |
| 643755 | Aug 20, 2007 | Aug 20, 2007 | XTO Energy Inc. | Freestone | Barnard Gas Unit #216132089 | 13,000 |
| 644591 | Aug 18, 2007 | Aug 18, 2007 | XTO Energy Inc. | Parker | Hills of Bear Creek III Unit #A 3HH36734531 | 11,000 |
| 644591Amendment | Aug 18, 2007 | Aug 18, 2007 | XTO Energy Inc. | Parker | Hills of Bear Creek III Unit #A 3HH36734531 | 11,000 |
| 644588 | Aug 18, 2007 | Aug 18, 2007 | XTO Energy Inc. | Tarrant | Christ League W Unit #2HH43932605 | 11,000 |
| 644588Amendment | Aug 18, 2007 | Aug 18, 2007 | XTO Energy Inc. | Tarrant | Christ League W Unit #2HH43932605 | 11,000 |
| 644568 | Aug 18, 2007 | Aug 18, 2007 | XTO Energy Inc. | Terry | Prentice Northeast Unit #13944530109 | 6,017 |
| 644356 | Aug 17, 2007 | Aug 17, 2007 | XTO Energy Inc. | Limestone | Carpenter Gas Unit II #629332009 | 15,000 |
| 644356Amendment | Aug 17, 2007 | Aug 17, 2007 | XTO Energy Inc. | Limestone | Carpenter Gas Unit II #629332009 | 15,000 |
| 644351 | Aug 17, 2007 | Aug 17, 2007 | XTO Energy Inc. | Limestone | Carpenter Gas Unit II #429332008 | 15,000 |
| 644348 | Aug 17, 2007 | Aug 17, 2007 | XTO Energy Inc. | Limestone | Carpenter Gas Unit II #329332007 | 15,000 |
| 644348Amendment | Aug 17, 2007 | Aug 17, 2007 | XTO Energy Inc. | Limestone | Carpenter Gas Unit II #329332007 | 15,000 |
| 644332 | Aug 17, 2007 | Aug 17, 2007 | XTO Energy Inc. | Freestone | L. V. Jones Gas Unit #516133985 | 13,000 |
| 644332Amendment | Aug 17, 2007 | Aug 17, 2007 | XTO Energy Inc. | Freestone | L. V. Jones Gas Unit #516133985 | 13,000 |
| 644314 | Aug 16, 2007 | Aug 16, 2007 | XTO Energy Inc. | Tarrant | L & S Land #A 5HH43932590 | 11,000 |
| 644301 | Aug 16, 2007 | Aug 16, 2007 | XTO Energy Inc. | Tarrant | L & S Land #A 4HH43932585 | 11,000 |
| 644298 | Aug 15, 2007 | Aug 15, 2007 | XTO Energy Inc. | Tarrant | L & S Land #A 3HH43932584 | 11,000 |
| 644290 | Aug 15, 2007 | Aug 15, 2007 | XTO Energy Inc. | Tarrant | Assembly of God Unit #2HH43932582 | 11,000 |
| 644237 | Aug 15, 2007 | Aug 15, 2007 | XTO Energy Inc. | Limestone | H. D. Thomas et al Gas Unit #629332003 | 13,300 |
| 643697 | Aug 15, 2007 | Aug 15, 2007 | XTO Energy Inc. | Denton | Beechwood #E 4HH12133204 | 11,500 |
| 643697Amendment | Aug 15, 2007 | Aug 15, 2007 | XTO Energy Inc. | Denton | Beechwood #E 4HH12133204 | 11,500 |
| 643687 | Aug 15, 2007 | Aug 15, 2007 | XTO Energy Inc. | Tarrant | Arterburn & Crow Unit #2HH43932547 | 11,000 |
| 643687Amendment | Aug 15, 2007 | Aug 15, 2007 | XTO Energy Inc. | Tarrant | Arterburn & Crow Unit #2HH43932547 | 11,000 |
| 641919 | Aug 15, 2007 | Aug 15, 2007 | XTO Energy Inc. | Johnson | Capps #1HH25131998 | 12,000 |
| 644197 | Aug 14, 2007 | Aug 14, 2007 | XTO Energy Inc. | Erath | Chandler Unit #1HH14331254 | 11,000 |
| 642370 | Aug 14, 2007 | Aug 14, 2007 | XTO Energy Inc. | Limestone | Foley Gas Unit #4HH29332001 | 18,000 |
| 642368 | Aug 14, 2007 | Aug 14, 2007 | XTO Energy Inc. | Limestone | Foley Gas Unit #5HH29332000 | 18,000 |
| 644112 | Aug 13, 2007 | Aug 13, 2007 | XTO Energy Inc. | Tarrant | Trwd McNeil B Unit #3HH43932569 | 11,000 |
| 644112Amendment | Aug 13, 2007 | Aug 13, 2007 | XTO Energy Inc. | Tarrant | Trwd McNeil B Unit #3HH43932569 | 11,000 |
| 644097 | Aug 13, 2007 | Aug 13, 2007 | XTO Energy Inc. | Tarrant | Indian Creek #I 11HH43932566 | 10,000 |
| 644096 | Aug 13, 2007 | Aug 13, 2007 | XTO Energy Inc. | Tarrant | Indian Creek #I 10HH43932565 | 10,000 |