| 702417Amendment | Oct 25, 2010 | Oct 25, 2010 | Chaparral Energy, L.L.C. | Blasingame, T.A. Gas Unit #2 | 12,300 | 45931448 |
| 698123 | Jun 30, 2010 | Jun 30, 2010 | Rheata Resources, LLC | Hudspeth, B. H. #1 | 10,300 | 45930598 |
| 696756 | Jun 1, 2010 | Jun 1, 2010 | Tanos Exploration, LLC | Johnson #1HH | 10,900 | 45931447 |
| 695139 | May 27, 2010 | May 27, 2010 | XTO Energy Inc. | J. K. Leard Gas Unit No. 1 #7 | 11,100 | 45931445 |
| 695035 | May 24, 2010 | May 24, 2010 | XTO Energy Inc. | Odom Gas Unit No. 1 #9 | 11,200 | 45931444 |
| 695693 | May 11, 2010 | May 11, 2010 | Verado Energy, Inc. | Ernest Bowers Gas Unit #5 | 12,000 | 45931446 |
| 694092 | Apr 15, 2010 | Apr 15, 2010 | Harleton Oil & Gas Inc. | Steave Davis #1 | 4,000 | 45931443 |
| 690248 | Feb 1, 2010 | Feb 1, 2010 | Valence Operating Company | Castellaw Unit #2 | 12,500 | 45931391 |
| 689762 | Jan 15, 2010 | Jan 15, 2010 | Bobcat Resources, L.L.C. | Tillery Gas Unit #1 | 12,000 | 45931442 |
| 688907 | Dec 22, 2009 | Dec 22, 2009 | Valence Operating Company | Castellaw Unit #1 | 12,050 | 45930607 |
| 688397 | Dec 14, 2009 | Dec 14, 2009 | Bobcat Resources, L.L.C. | Mary Jane Hancock #1 | 12,000 | 45931441 |
| 685907 | Oct 13, 2009 | Oct 13, 2009 | Harleton Oil & Gas Inc. | Annie Faye Hale #1 | 4,000 | 45931440 |
| 681418 | Jul 17, 2009 | Jul 17, 2009 | Exxon Mobil Corporation | Delrose Gas Unit 8 #2 HH | 12,600 | 45931437 |
| 682846 | Jul 9, 2009 | Jul 9, 2009 | Bobcat Resources, L.L.C. | Moon Unit #1 | 12,000 | 45931438 |
| 679254 | Apr 30, 2009 | Apr 30, 2009 | Exxon Mobil Corporation | Delrose Gas Unit 4 #2HH | 12,600 | 45931435 |
| 679254Amendment | Apr 30, 2009 | Apr 30, 2009 | Exxon Mobil Corporation | Delrose Gas Unit 4 #2HH | 12,600 | 45931435 |
| 680087 | Apr 3, 2009 | Apr 3, 2009 | Verado Energy, Inc. | Cullis Wade Gas Unit NO 1 #2 | 14,000 | 45931436 |
| 680087Amendment | Apr 3, 2009 | Apr 3, 2009 | Verado Energy, Inc. | Cullis Wade Gas Unit NO 1 #2 | 14,000 | 45931436 |
| 678024 | Feb 2, 2009 | Feb 2, 2009 | Apache Corporation | Hargest Gas Unit #1 | 16,000 | 45931415 |
| 677087 | Jan 13, 2009 | Jan 13, 2009 | Apache Corporation | W. F. Smith #3 | 12,100 | 45930997 |
| 676778 | Jan 6, 2009 | Jan 6, 2009 | Maximus Operating, Ltd. | Tarter Coleman 2 #2 | 12,500 | 45931434 |
| 672424 | Dec 4, 2008 | Dec 4, 2008 | XTO Energy Inc. | Linda O. Spruiell Gas Unit #2 | 13,500 | 45931429 |
| 675149 | Dec 2, 2008 | Dec 2, 2008 | Valence Operating Company | Orr, J. B. #3 | 12,200 | 45931433 |
| 675071 | Nov 19, 2008 | Nov 19, 2008 | Maximus Operating, Ltd. | McCrary #1 | 12,500 | 45931432 |
| 674656 | Nov 15, 2008 | Nov 15, 2008 | Branta Production Company LLC | Machen Gas Unit #2HH | 12,000 | 45931431 |
| 673346 | Oct 22, 2008 | Oct 22, 2008 | Maximus Operating, Ltd. | Stocks #1 | 12,500 | 45931430 |
| 673036 | Oct 20, 2008 | Oct 20, 2008 | Valence Operating Company | Johnson #1 | 10,750 | 45931268 |
| 673036Amendment | Oct 20, 2008 | Oct 20, 2008 | Valence Operating Company | Johnson #1 | 11,910 | 45931268 |
| 667743Amendment | Oct 8, 2008 | Oct 8, 2008 | Atoka Operating, Inc. | Rebel Mountain #1 | 13,000 | 45931420 |
| 669973 | Sep 16, 2008 | Sep 16, 2008 | XTO Energy Inc. | Jsmj Investments Gas Unit No. 2 #2 | 12,300 | 45931426 |
| 669971 | Sep 16, 2008 | Sep 16, 2008 | XTO Energy Inc. | Jsmj Investments Gas Unit No. 2 #1 | 12,300 | 45931425 |
| 669969 | Sep 16, 2008 | Sep 16, 2008 | XTO Energy Inc. | Jsmj Investments Gas Unit #5 | 12,300 | 45931427 |
| 669968 | Sep 16, 2008 | Sep 16, 2008 | XTO Energy Inc. | Jsmj Investments Gas Unit #4 | 12,300 | 45931424 |
| 669966 | Sep 16, 2008 | Sep 16, 2008 | XTO Energy Inc. | Jsmj Investments Gas Unit #3 | 12,300 | 45931423 |
| 669963 | Sep 16, 2008 | Sep 16, 2008 | XTO Energy Inc. | Jsmj Investments Gas Unit #2 | 12,300 | 45931422 |
| 668941 | Sep 3, 2008 | Sep 3, 2008 | Cordillera Texas, L.P. | J. L. Hunter Gas Unit #4HH | 13,000 | 45931421 |
| 668941Amendment | Sep 3, 2008 | Sep 3, 2008 | Forest Oil Corporation | J. L. Hunter Gas Unit #4HH | 13,000 | 45931421 |
| 667743 | Aug 13, 2008 | Aug 13, 2008 | Atoka Operating, Inc. | Rebel Mountain #1 | 12,000 | 45931420 |
| 667035 | Aug 8, 2008 | Aug 8, 2008 | Apache Corporation | Wright Gas Unit No. 1 #3 | 15,000 | 45931418 |
| 667035Amendment | Aug 8, 2008 | Aug 8, 2008 | Apache Corporation | Wright Gas Unit No. 1 #3 | 15,000 | 45931418 |
| 666555 | Jul 31, 2008 | Jul 31, 2008 | Valence Operating Company | Marshall, T. E. #2 | 12,500 | 45931417 |
| 665161 | Jul 14, 2008 | Jul 14, 2008 | Apache Corporation | Allgood Gas Unit #1 #2 | 12,500 | 45930524 |
| 665159 | Jul 14, 2008 | Jul 14, 2008 | Apache Corporation | James Jackson Gas Unit #4 | 12,000 | 45930982 |
| 664873 | Jul 10, 2008 | Jul 10, 2008 | Cordillera Texas, L.P. | Ida Mae Brown Gas Unit #2HH | 13,000 | 45931416 |
| 664873Amendment | Jul 10, 2008 | Jul 10, 2008 | Forest Oil Corporation | Ida Mae Brown Gas Unit #2HH | 13,000 | 45931416 |
| 664652 | Jul 3, 2008 | Jul 3, 2008 | Apache Corporation | Hargest Gas Unit #1 | 16,000 | 45931415 |
| 658074 | Jun 30, 2008 | Jun 30, 2008 | Txok Texas Energy Resources,l.p. | Gladewater GU 16 #18 | 11,300 | 45931407 |
| 664046 | Jun 27, 2008 | Jun 27, 2008 | Maximus Operating, Ltd. | Phillips-Wright #1 | 4,100 | 45931413 |
| 662557 | Jun 25, 2008 | Jun 25, 2008 | Harleton Oil & Gas Inc. | Houck-Farmer #1 | 4,000 | 45931414 |
| 663929 | Jun 21, 2008 | Jun 21, 2008 | Maximus Operating, Ltd. | McCaslin-Hall #4 | 12,500 | 45931412 |
| 662226 | Jun 5, 2008 | Jun 5, 2008 | Maximus Operating, Ltd. | Coleman, Tarter #1 | 12,500 | 45931410 |
| 661850 | Jun 3, 2008 | Jun 3, 2008 | Apache Corporation | Smith, W. F. #4 | 12,100 | 45931014 |
| 659719 | May 23, 2008 | May 23, 2008 | Stroud Petroleum, Inc. | Gregory #4 | 11,000 | 45931408 |
| 661521 | May 9, 2008 | May 9, 2008 | Branta Production Company LLC | D.J. White Gas Unit #2HH | 12,000 | 45931409 |
| 660253 | May 7, 2008 | May 7, 2008 | Peak Energy Corporation | Willeford Gas Unit #2HH | 12,000 | 45931154 |
| 657365 | Apr 22, 2008 | Apr 22, 2008 | Cross Creek Energy LLC | J. W. Barber #3 | 11,500 | 45931405 |
| 657073 | Apr 22, 2008 | Apr 22, 2008 | Txok Texas Energy Resources,l.p. | Barksdale, John #15 | 11,300 | 45931404 |
| 657906 | Apr 4, 2008 | Apr 4, 2008 | Cross Creek Energy LLC | J. W. Barber #4 | 11,500 | 45931406 |
| 654450 | Mar 31, 2008 | Mar 31, 2008 | Stroud Petroleum, Inc. | Thorne #3 | 10,500 | 45931403 |
| 652720 | Feb 14, 2008 | Feb 14, 2008 | XTO Energy Inc. | Will McKnight Gas Unit No. 1 #7 | 13,500 | 45931402 |
| 652498 | Jan 25, 2008 | Jan 25, 2008 | Verado Energy, Inc. | R. A. Hinson Gas Unit No. 1 #11 | 15,000 | 45931401 |
| 651795 | Dec 28, 2007 | Dec 28, 2007 | Maximus Operating, Ltd. | Tanner #1 | 12,600 | 45931400 |
| 651491 | Dec 20, 2007 | Dec 20, 2007 | Maximus Operating, Ltd. | Malone Heirs #1 | 12,500 | 45931399 |
| 651002 | Dec 20, 2007 | Dec 20, 2007 | Sojourner Drilling Corporation | Eva O'Byrne Gas Unit #5 | 12,000 | 45931397 |
| 651004 | Dec 17, 2007 | Dec 17, 2007 | McBee Operating Company, L.L.C. | Spencer Gas Unit 1 #5 | 11,500 | 45931398 |
| 650551 | Dec 10, 2007 | Dec 10, 2007 | McBee Operating Company, L.L.C. | Spencer Gas Unit No. 1 #4 | 11,500 | 45931395 |
| 650495 | Dec 8, 2007 | Dec 8, 2007 | McBee Operating Company, L.L.C. | Spencer Gas Unit 1 #3 | 11,500 | 45931394 |
| 650494 | Dec 8, 2007 | Dec 8, 2007 | McBee Operating Company, L.L.C. | Barber Gas Unit 1 #2 | 11,500 | 45931396 |
| 650492 | Dec 8, 2007 | Dec 8, 2007 | McBee Operating Company, L.L.C. | Bogel Gas Unit 2 #4 | 11,500 | 45931393 |
| 649941 | Nov 28, 2007 | Nov 28, 2007 | Cordillera Texas, L.P. | Pritchett Gas Unit #1HH | 11,500 | 45931392 |
| 646233 | Sep 24, 2007 | Sep 24, 2007 | Cordillera Texas, L.P. | D. A. Collie Gas Unit #2 | 11,925 | 45930385 |
| 646108 | Sep 19, 2007 | Sep 19, 2007 | Valence Operating Company | Castellaw Unit #2 | 12,500 | 45931391 |
| 646105 | Sep 19, 2007 | Sep 19, 2007 | Valence Operating Company | T.E. Marshall #1 | 12,500 | 45931390 |
| 644962 | Aug 24, 2007 | Aug 24, 2007 | Peak Energy Corporation | Willeford Gas Unit #4 | 12,000 | 45931389 |
| 644134 | Aug 14, 2007 | Aug 14, 2007 | Devon Energy Production Co, L.P. | Hill, L. C. #2 | 12,100 | 45931311 |
| 643460 | Aug 7, 2007 | Aug 7, 2007 | Txok Texas Energy Resources,l.p. | Tommie J. Mason GU #10 | 11,300 | 45931388 |
| 643456 | Aug 7, 2007 | Aug 7, 2007 | Txok Texas Energy Resources,l.p. | Mason, Tommie J. GU #9 | 11,300 | 45931387 |
| 643028 | Aug 1, 2007 | Aug 1, 2007 | Matador Production Company | Wilson #1 | 12,000 | 45931386 |
| 642690 | Jul 30, 2007 | Jul 30, 2007 | Southwestern Energy Prod. Co. | Harkrider #1 | 11,900 | 45931385 |
| 639936 | Jul 21, 2007 | Jul 21, 2007 | Neumin Production Company | Gage, Roy #1 | 12,500 | 45931332 |
| 639045 | Jul 16, 2007 | Jul 16, 2007 | Linder, John Operating Co., LLC | Edwards #10 | 3,668 | 45900946 |
| 641176 | Jul 3, 2007 | Jul 3, 2007 | Southwestern Energy Prod. Co. | Stout #1 | 12,100 | 45931384 |
| 640837 | Jun 28, 2007 | Jun 28, 2007 | Apache Corporation | Moughon Gas Unit #3 | 14,000 | 45931289 |
| 638890 | Jun 20, 2007 | Jun 20, 2007 | Txok Texas Energy Resources,l.p. | Gladewater GU 19 #13 | 11,300 | 45931381 |
| 640332 | Jun 15, 2007 | Jun 15, 2007 | Peak Energy Corporation | J.V. Craig Gas Unit #5 | 12,100 | 45931318 |
| 638127 | Jun 6, 2007 | Jun 6, 2007 | Txok Texas Energy Resources,l.p. | S. P. Victory Gas Unit #9 | 11,300 | 45931377 |
| 638098 | May 24, 2007 | May 24, 2007 | Txok Texas Energy Resources,l.p. | Rubey Estate Gas Unit #11 | 11,300 | 45931376 |
| 639122 | May 21, 2007 | May 21, 2007 | Maximus Operating, Ltd. | McCaslin-Hall #3 | 12,000 | 45931383 |
| 639122Amendment | May 21, 2007 | May 21, 2007 | Maximus Operating, Ltd. | McCaslin-Hall #3 | 12,000 | 45931383 |
| 639011 | May 19, 2007 | May 19, 2007 | Neumin Production Company | Davis #1 | 11,200 | 45931382 |
| 638726 | May 17, 2007 | May 17, 2007 | Txok Texas Energy Resources,l.p. | R. A. Adkins Gas Unit #3 | 11,300 | 45931380 |
| 638101 | May 10, 2007 | May 10, 2007 | Txok Texas Energy Resources,l.p. | Gladewater GU 19 #12 | 11,300 | 45931379 |
| 635279 | May 10, 2007 | May 10, 2007 | XTO Energy Inc. | Bishop Gas Unit #1 | 13,600 | 45931378 |
| 637491 | Apr 30, 2007 | Apr 30, 2007 | Txok Texas Energy Resources,l.p. | Phillips E-1 GU #13 | 11,300 | 45931375 |
| 634986 | Apr 17, 2007 | Apr 17, 2007 | Txok Texas Energy Resources,l.p. | Edwards, J. K. #5 | 11,300 | 45931369 |
| 635065 | Apr 16, 2007 | Apr 16, 2007 | Txok Texas Energy Resources,l.p. | John Barksdale GU #13 | 11,300 | 45931374 |
| 634910 | Apr 16, 2007 | Apr 16, 2007 | Txok Texas Energy Resources,l.p. | Miller, J. T. #3 | 11,300 | 45931368 |
| 633753 | Mar 23, 2007 | Mar 23, 2007 | Txok Texas Energy Resources,l.p. | J. W. Free Gas Unit #6 | 11,300 | 45931363 |
| 635119 | Mar 21, 2007 | Mar 21, 2007 | McBee Operating Company, L.L.C. | Bogel Gas Unit #1 #7 | 11,500 | 45931373 |
| 635117 | Mar 20, 2007 | Mar 20, 2007 | McBee Operating Company, L.L.C. | Tuel Gas Unit #1 #7 | 11,500 | 45931372 |