| 675293 | Dec 3, 2008 | Dec 3, 2008 | XTO Energy Inc. | Chronister Heirs #5907331427 | 12,800 |
| 675287 | Dec 3, 2008 | Dec 3, 2008 | XTO Energy Inc. | Chronister Heirs #5807331425 | 12,800 |
| 675242 | Dec 2, 2008 | Dec 2, 2008 | XTO Energy Inc. | Chronister Heirs #5607331424 | 12,800 |
| 675240 | Dec 2, 2008 | Dec 2, 2008 | XTO Energy Inc. | Chronister Heirs #5507331423 | 12,800 |
| 675238 | Dec 2, 2008 | Dec 2, 2008 | XTO Energy Inc. | Chronister Heirs #5407331422 | 12,800 |
| 675561 | Dec 1, 2008 | Dec 1, 2008 | Dallas Production, Inc. | Bass #107330674 | 9,700 |
| 674984 | Nov 20, 2008 | Nov 20, 2008 | Marathon Oil Company | New Birmingham Gas Unit 2 #4HH07331421 | 13,000 |
| 674819 | Nov 17, 2008 | Nov 17, 2008 | Chesapeake Operating, Inc. | Sessions #307331420 | 15,000 |
| 674613 | Nov 14, 2008 | Nov 14, 2008 | Chesapeake Operating, Inc. | Summers #107331419 | 14,000 |
| 674537 | Nov 13, 2008 | Nov 13, 2008 | XTO Energy Inc. | Staton Gas Unit No. 1 #707331418 | 12,700 |
| 648559Amendment | Nov 12, 2008 | Nov 12, 2008 | Goodrich Petroleum Company | Bob Sessions GU #4HH07331299 | 13,000 |
| 672936 | Nov 6, 2008 | Nov 6, 2008 | Parten Operating Inc. | Beard #107331415 | 10,200 |
| 674061 | Nov 3, 2008 | Nov 3, 2008 | XTO Energy Inc. | Staton Gas Unit No. 1 #607331416 | 12,700 |
| 674059 | Nov 3, 2008 | Nov 3, 2008 | XTO Energy Inc. | Staton Gas Unit No. 1 #507331417 | 12,700 |
| 672990 | Oct 17, 2008 | Oct 17, 2008 | Chesapeake Operating, Inc. | Larry Neal #107331414 | 12,000 |
| 671766 | Oct 4, 2008 | Oct 4, 2008 | Chesapeake Operating, Inc. | Jones #107331412 | 15,000 |
| 671343 | Oct 3, 2008 | Oct 3, 2008 | XTO Energy Inc. | Chronister Heirs #3807331411 | 12,800 |
| 671343Amendment | Oct 3, 2008 | Oct 3, 2008 | XTO Energy Inc. | Chronister Heirs #3807331411 | 12,800 |
| 670617 | Oct 3, 2008 | Oct 3, 2008 | Wagner & Brown, Ltd. | Jakubik #7HH07331413 | 15,000 |
| 671166 | Sep 30, 2008 | Sep 30, 2008 | Cordillera Texas, L.P. | Parker Gas Unit #707331410 | 11,300 |
| 670917 | Sep 26, 2008 | Sep 26, 2008 | Chesapeake Operating, Inc. | Lilly Andress #107331408 | 14,000 |
| 670831 | Sep 26, 2008 | Sep 26, 2008 | Chesapeake Operating, Inc. | Hauserman #207331407 | 14,000 |
| 671555 | Sep 25, 2008 | Sep 25, 2008 | Branta Production Company LLC | Goldman #307331409 | 8,600 |
| 671555Amendment | Sep 25, 2008 | Sep 25, 2008 | Branta Production Company LLC | Goldman #307331409 | 8,600 |
| 670622 | Sep 24, 2008 | Sep 24, 2008 | XTO Energy Inc. | Chronister Heirs #5207331406 | 12,800 |
| 666367 | Sep 15, 2008 | Sep 15, 2008 | Marathon Oil Company | Whiteman Decker GU 1 #307330414 | 10,791 |
| 669714 | Sep 12, 2008 | Sep 12, 2008 | Chesapeake Operating, Inc. | Durham #107331405 | 12,000 |
| 669513 | Sep 10, 2008 | Sep 10, 2008 | Chesapeake Operating, Inc. | Glover #107331404 | 14,000 |
| 668911 | Sep 3, 2008 | Sep 3, 2008 | XTO Energy Inc. | Sparkman Gas Unit #107331400 | 13,000 |
| 668908 | Sep 3, 2008 | Sep 3, 2008 | XTO Energy Inc. | Seymore Gas Unit #107331401 | 13,000 |
| 668758 | Sep 2, 2008 | Sep 2, 2008 | Parten Operating Inc. | Nichols #107331398 | 10,200 |
| 668752 | Sep 2, 2008 | Sep 2, 2008 | Chesapeake Operating, Inc. | Dingee #107331397 | 15,000 |
| 670184 | Aug 29, 2008 | Aug 29, 2008 | Parten Operating Inc. | Staton Timber #1R07331402 | 10,200 |
| 670075 | Aug 29, 2008 | Aug 29, 2008 | Branta Production Company LLC | Goldman #207331403 | 8,600 |
| 668754 | Aug 29, 2008 | Aug 29, 2008 | Chesapeake Operating, Inc. | Blackstone Minerals #207331399 | 18,000 |
| 668707 | Aug 29, 2008 | Aug 29, 2008 | Exco Operating Company, LP | Jarvis East G.U. #107331396 | 13,000 |
| 668707Amendment | Aug 29, 2008 | Aug 29, 2008 | Exco Operating Company, LP | Jarvis East G.U. #107331396 | 15,125 |
| 668442 | Aug 25, 2008 | Aug 25, 2008 | Chesapeake Operating, Inc. | Davis #107331395 | 12,000 |
| 668389 | Aug 25, 2008 | Aug 25, 2008 | XTO Energy Inc. | Frank Heirs #407331393 | 13,000 |
| 668387 | Aug 25, 2008 | Aug 25, 2008 | XTO Energy Inc. | Frank Heirs #307331394 | 13,000 |
| 668384 | Aug 25, 2008 | Aug 25, 2008 | XTO Energy Inc. | Frank Heirs #207331392 | 13,000 |
| 668377 | Aug 22, 2008 | Aug 22, 2008 | XTO Energy Inc. | Frank Heirs #107331390 | 13,000 |
| 668347 | Aug 22, 2008 | Aug 22, 2008 | XTO Energy Inc. | Chronister Heirs #5107331386 | 13,000 |
| 668345 | Aug 22, 2008 | Aug 22, 2008 | XTO Energy Inc. | Chronister Heirs #5007331388 | 13,000 |
| 668343 | Aug 22, 2008 | Aug 22, 2008 | XTO Energy Inc. | Chronister Heirs #4907331389 | 13,000 |
| 668342 | Aug 22, 2008 | Aug 22, 2008 | XTO Energy Inc. | Chronister Heirs #4807331387 | 12,850 |
| 668340 | Aug 22, 2008 | Aug 22, 2008 | XTO Energy Inc. | Chronister Heirs #4607331385 | 12,800 |
| 668339 | Aug 22, 2008 | Aug 22, 2008 | XTO Energy Inc. | Chronister Heirs #4507331391 | 12,800 |
| 668337 | Aug 22, 2008 | Aug 22, 2008 | XTO Energy Inc. | Chronister Heirs #4707331384 | 13,000 |
| 667614 | Aug 12, 2008 | Aug 12, 2008 | Chesapeake Operating, Inc. | Crowley #107331383 | 15,000 |
| 667525 | Aug 12, 2008 | Aug 12, 2008 | Parten Operating Inc. | Staton Timber #107331382 | 10,200 |
| 667469 | Aug 9, 2008 | Aug 9, 2008 | Ark-La-Tex Energy, L.L.C. | McLeod Gas Unit #307331381 | 11,000 |
| 667382 | Aug 9, 2008 | Aug 9, 2008 | Chesapeake Operating, Inc. | Blackstone Minerals #107331380 | 18,000 |
| 666517 | Jul 31, 2008 | Jul 31, 2008 | Marathon Oil Company | McClendon Gas Unit 1 #11HH07331379 | 14,000 |
| 666517Amendment | Jul 31, 2008 | Jul 31, 2008 | Marathon Oil Company | McClendon Gas Unit 1 #11HH07331379 | 14,000 |
| 664616 | Jul 16, 2008 | Jul 16, 2008 | Chesapeake Operating, Inc. | Ward Timber #107331377 | 14,000 |
| 664616Amendment | Jul 16, 2008 | Jul 16, 2008 | Chesapeake Operating, Inc. | Ward Timber #107331377 | 14,000 |
| 665080 | Jul 14, 2008 | Jul 14, 2008 | Marathon Oil Company | Whiteman Gas Unit # 1 #9HH07331378 | 14,000 |
| 663963 | Jun 25, 2008 | Jun 25, 2008 | Goodrich Petroleum Company | Sessions, Rube #407331376 | 13,000 |
| 663670 | Jun 24, 2008 | Jun 24, 2008 | Marathon Oil Company | New Birmingham "B" Gas Unit 1 #9HH07331375 | 14,000 |
| 663509 | Jun 21, 2008 | Jun 21, 2008 | Chesapeake Operating, Inc. | Dickson #207331374 | 16,000 |
| 663310 | Jun 18, 2008 | Jun 18, 2008 | Southwestern Energy Prod. Co. | Barnes Gas Unit 1 #1407331373 | 12,500 |
| 663310Amendment | Jun 18, 2008 | Jun 18, 2008 | Southwestern Energy Prod. Co. | Barnes Gas Unit 1 #14H07331373 | 12,500 |
| 663254 | Jun 18, 2008 | Jun 18, 2008 | Cordillera Texas, L.P. | T. A. Perdue #207331372 | 11,000 |
| 663254Amendment | Jun 18, 2008 | Jun 18, 2008 | Forest Oil Corporation | T. A. Perdue #207331372 | 11,000 |
| 663200 | Jun 17, 2008 | Jun 17, 2008 | Cordillera Texas, L.P. | Hall #107331371 | 12,000 |
| 662832 | Jun 12, 2008 | Jun 12, 2008 | XTO Energy Inc. | Chronister Heirs #4407331369 | 12,800 |
| 662831 | Jun 12, 2008 | Jun 12, 2008 | XTO Energy Inc. | Chronister Heirs #4307331370 | 12,800 |
| 662829 | Jun 12, 2008 | Jun 12, 2008 | XTO Energy Inc. | Chronister Heirs #4207331368 | 12,800 |
| 662825 | Jun 12, 2008 | Jun 12, 2008 | XTO Energy Inc. | Chronister Heirs #4107331367 | 12,800 |
| 662818 | Jun 12, 2008 | Jun 12, 2008 | XTO Energy Inc. | Chronister Heirs #4007331366 | 12,800 |
| 662811 | Jun 12, 2008 | Jun 12, 2008 | XTO Energy Inc. | Chronister Heirs #3907331365 | 12,800 |
| 662684 | Jun 10, 2008 | Jun 10, 2008 | Chesapeake Operating, Inc. | Prestriedge #207331364 | 12,000 |
| 662178 | Jun 5, 2008 | Jun 5, 2008 | XTO Energy Inc. | Chronister Heirs #3707331362 | 12,800 |
| 662176 | Jun 5, 2008 | Jun 5, 2008 | XTO Energy Inc. | Chronister Heirs #3607331361 | 12,800 |
| 638092 | Jun 5, 2008 | Jun 5, 2008 | Ark-La-Tex Energy, L.L.C. | Romeo Maldonado Gas Unit #107331246 | 6,000 |
| 663451 | Jun 2, 2008 | Jun 2, 2008 | Paradigm Exploration, L.P. | Mina #1A07331363 | 5,200 |
| 663451Amendment | Jun 2, 2008 | Jun 2, 2008 | Riley Exploration, LLC | Mina #1A07331363 | 5,200 |
| 662077 | May 30, 2008 | May 30, 2008 | Cordillera Texas, L.P. | Temple-Eastex G.U. No. 3 #207331360 | 11,300 |
| 661651 | May 29, 2008 | May 29, 2008 | XTO Energy Inc. | Chronister Heirs #3507331356 | 12,800 |
| 661561 | May 29, 2008 | May 29, 2008 | XTO Energy Inc. | Chronister Heirs #3307331354 | 12,800 |
| 661709 | May 28, 2008 | May 28, 2008 | Wagner Oil Company | Armstrong D #207331357 | 12,700 |
| 661565 | May 27, 2008 | May 27, 2008 | XTO Energy Inc. | Chronister Heirs #3407331355 | 12,800 |
| 661560 | May 27, 2008 | May 27, 2008 | XTO Energy Inc. | Chronister Heirs #3207331353 | 12,800 |
| 661560Amendment | May 27, 2008 | May 27, 2008 | XTO Energy Inc. | Chronister Heirs #3207331353 | 12,800 |
| 661560Amendment | May 27, 2008 | May 27, 2008 | XTO Energy Inc. | Chronister Heirs #3207331353 | 12,800 |
| 661791 | May 23, 2008 | May 23, 2008 | Cordillera Texas, L.P. | Whiteman-Decker GU No. 1 #507331358 | 12,000 |
| 661656 | May 22, 2008 | May 22, 2008 | Wagner & Brown, Ltd. | Northcutt GU #4H07331359 | 14,800 |
| 660821 | May 19, 2008 | May 19, 2008 | Cordillera Texas, L.P. | Coon Creek #207331352 | 9,000 |
| 660821Amendment | May 19, 2008 | May 19, 2008 | Cordillera Texas, L.P. | Coon Creek #207331352 | 10,000 |
| 659126 | May 9, 2008 | May 9, 2008 | J-W Operating Co. | McKinney #107331260 | 12,475 |
| 660014 | May 2, 2008 | May 2, 2008 | LTS Oil & Gas | McMillan #107331351 | 4,200 |
| 659577 | Apr 26, 2008 | Apr 26, 2008 | XTO Energy Inc. | Copeland #207331350 | 13,000 |
| 658706 | Apr 15, 2008 | Apr 15, 2008 | Cordillera Texas, L.P. | Temple-Eastex G.U. No. 2 #407331349 | 12,000 |
| 658469 | Apr 12, 2008 | Apr 12, 2008 | Southwestern Energy Prod. Co. | Afton Thrash Unit 1 #1607331348 | 12,600 |
| 658367 | Apr 11, 2008 | Apr 11, 2008 | XTO Energy Inc. | Copeland #107331347 | 13,000 |
| 658328 | Apr 8, 2008 | Apr 8, 2008 | J-O'B Operating Company | B M Smith Gas Unit #307331346 | 9,800 |
| 656577 | Mar 19, 2008 | Mar 19, 2008 | XTO Energy Inc. | Doyle Creek Gas Unit No. 2 #207331343 | 13,500 |
| 656813 | Mar 18, 2008 | Mar 18, 2008 | Cordillera Texas, L.P. | Temple-Eastex G.U. No. 3 #3HH07331345 | 11,200 |
| 656813Amendment | Mar 18, 2008 | Mar 18, 2008 | Forest Oil Corporation | Temple-Eastex G.U. No. 3 #3HH07331345 | 11,200 |