| 655420 | Feb 25, 2008 | Feb 25, 2008 | Rio Petroleum, Inc. | Atnip #1 | 9,000 | 19731624 |
| 654616 | Feb 12, 2008 | Feb 12, 2008 | Rio Petroleum, Inc. | Ramey #1 | 9,000 | 19731623 |
| 654126 | Feb 8, 2008 | Feb 8, 2008 | Dry Fork Production Co., LLC | Robinson South #1RE | 6,000 | 19730272 |
| 653964 | Feb 8, 2008 | Feb 8, 2008 | Dry Fork Production Co., LLC | Robinson East #1RE | 6,000 | 19731097 |
| 651686 | Jan 4, 2008 | Jan 4, 2008 | Ampak Oil Company | Park Unit #1 | 9,000 | 19731622 |
| 651686Amendment | Jan 4, 2008 | Jan 4, 2008 | Ampak Oil Company | Park Unit #1 | 9,000 | 19731622 |
| 651155 | Dec 17, 2007 | Dec 17, 2007 | Trio Consulting & Management,llc | Gilliam #2RE | 9,031 | 19730576 |
| 646740 | Oct 1, 2007 | Oct 1, 2007 | Echo Production, Inc. | Conley, C. G. #1H | 8,250 | 19731621 |
| 646740Amendment | Oct 1, 2007 | Oct 1, 2007 | Echo Production, Inc. | Conley, C. G. #1H | 8,250 | 19731621 |
| 645809 | Sep 27, 2007 | Sep 27, 2007 | Bettis, Boyle & Stovall | Roberson #1 | 7,000 | 19731503 |
| 644683 | Sep 24, 2007 | Sep 24, 2007 | Bettis, Boyle & Stovall | Cato #3 | 7,000 | 19731620 |
| 645973 | Sep 17, 2007 | Sep 17, 2007 | Dry Fork Production Co., LLC | Holcomb #1R | 8,100 | 19731473 |
| 645256 | Sep 4, 2007 | Sep 4, 2007 | Trio Consulting & Management,llc | Walser-McNeese #1 | 8,600 | 19731467 |
| 643990 | Aug 11, 2007 | Aug 11, 2007 | Guffey, Wm. R. | McNeese #1 | 9,000 | 19731619 |
| 642929 | Jul 31, 2007 | Jul 31, 2007 | Schalk Oil Company, Inc. | Bowen #1 | 8,900 | 19731618 |
| 639386 | Jul 25, 2007 | Jul 25, 2007 | Kadane Corporation | Jackson-Forbes Unit #1 | 5,410 | 19731558 |
| 640228 | Jun 14, 2007 | Jun 14, 2007 | Ampak Oil Company | Pechacek #1 | 8,500 | 19730383 |
| 639740 | Jun 4, 2007 | Jun 4, 2007 | Dry Fork Production Co., LLC | Bar J R Bar #1 | 8,500 | 19731617 |
| 636248 | Apr 5, 2007 | Apr 5, 2007 | Dry Fork Production Co., LLC | Jeffery #1 | 9,500 | 19731495 |
| 636248Amendment | Apr 5, 2007 | Apr 5, 2007 | Dry Fork Production Co., LLC | Jeffery #1REH | 9,500 | 19731495 |
| 633643 | Mar 15, 2007 | Mar 15, 2007 | Trio Consulting & Management,llc | Huse #2 | 8,600 | 19731616 |
| 633643Amendment | Mar 15, 2007 | Mar 15, 2007 | Trio Consulting & Management,llc | Huse #2 | 8,600 | 19731616 |
| 634627 | Mar 12, 2007 | Mar 12, 2007 | Trio Consulting & Management,llc | Beverly #1RE | 9,300 | 19730452 |
| 630686 | Dec 19, 2006 | Dec 19, 2006 | Tema Oil and Gas Company | Reneau #1 | 8,800 | 19730853 |
| 628436 | Dec 12, 2006 | Dec 12, 2006 | Bettis, Boyle & Stovall | Cato #2 | 6,700 | 19731614 |
| 629960 | Dec 5, 2006 | Dec 5, 2006 | Bettis, Boyle & Stovall | Stepp 110 #3 | 8,950 | 19731395 |
| 629817 | Dec 4, 2006 | Dec 4, 2006 | Dry Fork Production Co., LLC | Barnett-Walser #1 | 8,500 | 19731615 |
| 628574 | Nov 7, 2006 | Nov 7, 2006 | Corda Corporation | Parker #1 | 8,490 | 19731613 |
| 628388 | Nov 1, 2006 | Nov 1, 2006 | Dry Fork Production Co., LLC | Sparkman #1 | 8,800 | 19731612 |
| 624211 | Oct 23, 2006 | Oct 23, 2006 | Willow Creek Resources, Inc. | Greene 165 #1HH | 8,400 | 19731266 |
| 625947 | Oct 11, 2006 | Oct 11, 2006 | Cimarex Energy Co. | Summerlee Unit #8H | 8,100 | 19731588 |
| 626867 | Oct 3, 2006 | Oct 3, 2006 | Key Energy of Colorado, Inc. | Hurst 'D' #7HH | 8,300 | 19731521 |
| 625160 | Aug 30, 2006 | Aug 30, 2006 | Cimarex Energy Co. | Summerlee Unit #2HH | 8,300 | 19731553 |
| 624738 | Aug 24, 2006 | Aug 24, 2006 | Panamerican Operating Inc | Gooch #3 | 8,325 | 19731363 |
| 624166 | Aug 10, 2006 | Aug 10, 2006 | Ampak Oil Company | Pechacek #1A | 9,000 | 19730575 |
| 623028 | Jul 28, 2006 | Jul 28, 2006 | Masada Oil & Gas | Mc Nabb #1 | 1,000 | 19731610 |
| 623131 | Jul 25, 2006 | Jul 25, 2006 | Decleva, Paul | Cato #12 | 7,970 | 19731609 |
| 618915 | May 15, 2006 | May 15, 2006 | Foree Oil Company | Sauls #1 | 7,380 | 19730907 |
| 618915Amendment | May 15, 2006 | May 15, 2006 | Foree Oil Company | Sauls #1 | 7,380 | 19730907 |
| 619220 | May 12, 2006 | May 12, 2006 | Cimarex Energy Co. | Long #8 | 7,900 | 19731585 |
| 617769 | May 12, 2006 | May 12, 2006 | Rio Petroleum, Inc. | Loveless-Langford #3HTH | 8,800 | 19730865 |
| 618966 | May 10, 2006 | May 10, 2006 | Cimarex Energy Co. | Jeffrey Ranch Unit #3HH | 8,000 | 19731575 |
| 617356 | Apr 17, 2006 | Apr 17, 2006 | Masada Oil & Gas | Loveless #8 | 1,000 | 19731608 |
| 617355 | Apr 17, 2006 | Apr 17, 2006 | Masada Oil & Gas | Loveless #3 | 1,000 | 19731607 |
| 615735 | Mar 31, 2006 | Mar 31, 2006 | Thompson, Richard W. Inc. | Hec #5 | 8,999 | 19731606 |
| 616143 | Mar 27, 2006 | Mar 27, 2006 | TE-Ray Resources, Inc | Howard "D" #1 | 8,374 | 19730901 |
| 615954 | Mar 17, 2006 | Mar 17, 2006 | Key Energy of Colorado, Inc. | Holmes #7H | 8,000 | 19731276 |
| 615954Amendment | Mar 17, 2006 | Mar 17, 2006 | Key Energy of Colorado, Inc. | Holmes #7 | 8,000 | 19731276 |
| 614852 | Feb 27, 2006 | Feb 27, 2006 | Cimarex Energy Co. | Turner #2 | 7,800 | 19731605 |
| 614572 | Feb 21, 2006 | Feb 21, 2006 | Trio Consulting & Management,llc | DDD-Evans #1 | 9,000 | 19731604 |
| 613601 | Feb 3, 2006 | Feb 3, 2006 | Cimarex Energy Co. | Long #8 | 7,900 | 19731585 |
| 612060 | Jan 17, 2006 | Jan 17, 2006 | Rust Oil Corp. | Brothers/Brandon Unit #1 | 6,000 | 19731603 |
| 611747 | Jan 5, 2006 | Jan 5, 2006 | Rio Petroleum, Inc. | Crownover #1 | 8,700 | 19731357 |
| 611746 | Jan 5, 2006 | Jan 5, 2006 | Rio Petroleum, Inc. | Barnes - Judd Unit #1ST | 8,700 | 19731159 |
| 611278 | Dec 27, 2005 | Dec 27, 2005 | Bettis, Boyle & Stovall | Cato "A" #2 | 7,000 | 19731601 |
| 611276 | Dec 27, 2005 | Dec 27, 2005 | Bettis, Boyle & Stovall | Cato #1 | 7,000 | 19731600 |
| 611501 | Dec 22, 2005 | Dec 22, 2005 | Corda Corporation | Mc Neese West #1 | 8,350 | 19731602 |
| 609733 | Dec 5, 2005 | Dec 5, 2005 | Annavas Development Co., Ltd. | G Well Reeves #1 | 1,100 | 19731599 |
| 609734 | Dec 1, 2005 | Dec 1, 2005 | Annavas Development Co., Ltd. | G2.2 NW Wilson #1 | 500 | 19731598 |
| 609736 | Nov 30, 2005 | Nov 30, 2005 | Annavas Development Co., Ltd. | G-12 NE Crabtree #1 | 400 | 19731597 |
| 609735 | Nov 30, 2005 | Nov 30, 2005 | Annavas Development Co., Ltd. | G2.1 NE Reeves #1 | 500 | 19731596 |
| 609732 | Nov 30, 2005 | Nov 30, 2005 | Annavas Development Co., Ltd. | Horton, Williams #1 | 500 | 19731595 |
| 609731 | Nov 30, 2005 | Nov 30, 2005 | Annavas Development Co., Ltd. | G2.1 Ese Fuqua #1 | 1,100 | 19731594 |
| 609642 | Nov 16, 2005 | Nov 16, 2005 | B & B Operating, L.P. | Newby #1169 | 6,000 | 19731593 |
| 604782 | Nov 14, 2005 | Nov 14, 2005 | Crawley Petroleum Corporation | Favor #1H | 8,568 | 19731305 |
| 608761 | Nov 1, 2005 | Nov 1, 2005 | Sethi Operating Company | Neal 322 #1 | 8,200 | 19731592 |
| 608525 | Oct 27, 2005 | Oct 27, 2005 | Cleary Petroleum Corporation | Wilson-Rose #1201 | 8,500 | 19731404 |
| 608062 | Oct 19, 2005 | Oct 19, 2005 | Dry Fork Production Co., LLC | Bradshaw #1 | 7,500 | 19731546 |
| 607998 | Oct 17, 2005 | Oct 17, 2005 | Sethi Operating Company | Neal 630 #1 | 8,100 | 19731591 |
| 607426 | Oct 13, 2005 | Oct 13, 2005 | Texakoma Operating, L.P. | Texakoma L-M #1H | 8,700 | 19731590 |
| 607426Amendment | Oct 13, 2005 | Oct 13, 2005 | Texakoma Operating, L.P. | Texakoma L-M #1H | 8,700 | 19731590 |
| 607426Amendment | Oct 13, 2005 | Oct 13, 2005 | Texakoma Operating, L.P. | Texakoma L-M #1 | 8,700 | 19731590 |
| 607589 | Oct 10, 2005 | Oct 10, 2005 | Cimarex Energy Co. | Long #6 | 7,750 | 19731581 |
| 607503 | Oct 7, 2005 | Oct 7, 2005 | Key Energy of Colorado, Inc. | Long 398 #3X | 7,799 | 19731316 |
| 606818 | Sep 27, 2005 | Sep 27, 2005 | Key Energy of Colorado, Inc. | Holmes "284' #6 | 8,400 | 19731286 |
| 606818Amendment | Sep 27, 2005 | Sep 27, 2005 | Key Energy of Colorado, Inc. | Holmes "284' #6 | 8,400 | 19731286 |
| 606297 | Sep 14, 2005 | Sep 14, 2005 | Bridger Oil Inc. | Bell #2 | 9,000 | 19731589 |
| 605039 | Aug 17, 2005 | Aug 17, 2005 | Cimarex Energy Co. | Summerlee #8HH | 10,700 | 19731588 |
| 605039Amendment | Aug 17, 2005 | Aug 17, 2005 | Cimarex Energy Co. | Summerlee #8HH | 10,700 | 19731588 |
| 602516 | Aug 12, 2005 | Aug 12, 2005 | Texakoma E & P, LLC | Huse #2H | 8,700 | 19731584 |
| 602516Amendment | Aug 12, 2005 | Aug 12, 2005 | Texakoma Operating, L.P. | Huse B #2 | 8,700 | 19731584 |
| 604117 | Jul 29, 2005 | Jul 29, 2005 | Cimarex Energy Co. | Dodge #001 | 8,000 | 19731587 |
| 603774 | Jul 22, 2005 | Jul 22, 2005 | Ampak Oil Company | Gerald South #1 | 9,000 | 19731586 |
| 603574 | Jul 18, 2005 | Jul 18, 2005 | Cimarex Energy Co. | Long #8 | 7,900 | 19731585 |
| 601091 | May 24, 2005 | May 24, 2005 | Key Energy of Colorado, Inc. | Holmes-Neal Unit 284 #1 | 7,925 | 19731265 |
| 601036 | May 23, 2005 | May 23, 2005 | Cimarex Energy Co. | J & J Ranch #3HH | 10,250 | 19731583 |
| 600934 | May 23, 2005 | May 23, 2005 | Texakoma E & P, LLC | Watson 133 #1HH | 8,700 | 19731582 |
| 560840 | May 10, 2005 | May 10, 2005 | Key Energy of Colorado, Inc. | Langford et Al #1025 | 8,857 | 19730350 |
| 560843 | Apr 22, 2005 | Apr 22, 2005 | Cimarex Energy Co. | Long #7 | 7,750 | 19731580 |
| 560839 | Apr 22, 2005 | Apr 22, 2005 | Cimarex Energy Co. | Long #6 | 7,750 | 19731581 |
| 559632Amendment | Apr 21, 2005 | Apr 21, 2005 | Cimarex Energy Co. | Summerlee #7 HH | 10,600 | 19731578 |
| 560308 | Apr 12, 2005 | Apr 12, 2005 | Masada Oil & Gas | J. C. #1 | 1,000 | 19731579 |
| 559632 | Mar 30, 2005 | Mar 30, 2005 | Cimarex Energy Co. | Summerlee #7 HH | 10,600 | 19731578 |
| 558796 | Mar 14, 2005 | Mar 14, 2005 | Cimarex Energy Co. | J & J Ranch #2 | 8,200 | 19731577 |
| 558154 | Feb 25, 2005 | Feb 25, 2005 | Cimarex Energy Co. | Summerlee #6H | 8,600 | 19731576 |
| 557703 | Feb 22, 2005 | Feb 22, 2005 | Cimarex Energy Co. | Jeffrey Ranch Unit #3 | 8,600 | 19731575 |
| 557564 | Feb 11, 2005 | Feb 11, 2005 | Key Energy of Colorado, Inc. | Long 398 #3X | 7,799 | 19731316 |
| 556114 | Jan 14, 2005 | Jan 14, 2005 | Texakoma E & P, LLC | Holcomb #1 HH | 8,700 | 19731574 |
| 555886 | Jan 7, 2005 | Jan 7, 2005 | Trio Consulting & Management,llc | Hatcher, Ruth #1 HH | 9,000 | 19730309 |
| 555679 | Jan 7, 2005 | Jan 7, 2005 | Texakoma E & P, LLC | McClellan #1 HH | 8,700 | 19731573 |