| 553078 | Jan 6, 2005 | Jan 6, 2005 | DDD Exploration, Inc. | Evans #1 | 8,800 | 19731567 |
| 555060 | Dec 21, 2004 | Dec 21, 2004 | Cimarex Energy Co. | Jeffrey Unit #2 | 8,100 | 19731572 |
| 555026 | Dec 17, 2004 | Dec 17, 2004 | Thompson, Richard W. Inc. | Stowe #1 | 8,600 | 19731571 |
| 555026Amendment | Dec 17, 2004 | Dec 17, 2004 | Thompson, Richard W. Inc. | Stowe #1 | 8,900 | 19731571 |
| 554405 | Dec 10, 2004 | Dec 10, 2004 | Geostrat Inc. | Griffin -A- #2 | 8,500 | 19731569 |
| 554579 | Dec 8, 2004 | Dec 8, 2004 | Ampak Oil Company | Whitfield-Barnett Unit #1H | 9,000 | 19731570 |
| 554579Amendment | Dec 8, 2004 | Dec 8, 2004 | Ampak Oil Company | Whitfield-Barnett Unit #1 | 9,000 | 19731570 |
| 554113 | Dec 2, 2004 | Dec 2, 2004 | Texakoma Oil & Gas Corporation | Walser 105 #1 | 8,500 | 19731568 |
| 553980 | Nov 29, 2004 | Nov 29, 2004 | Corda Corporation | J & J Ranch #1SD | 2,400 | 19731442 |
| 552728Amendment | Nov 12, 2004 | Nov 12, 2004 | Cimarex Energy Co. | Hurst "E" #12 HH | 10,000 | 19731565 |
| 552728Amendment | Nov 12, 2004 | Nov 12, 2004 | Cimarex Energy Co. | Hurst "E" #12 HH | 10,000 | 19731565 |
| 552793 | Nov 1, 2004 | Nov 1, 2004 | Dry Fork Production Co., LLC | DDD Mc Lennan #1 | 8,450 | 19731566 |
| 552728 | Oct 26, 2004 | Oct 26, 2004 | Cimarex Energy Co. | Hurst "E" #12HH | 10,000 | 19731565 |
| 552735 | Oct 25, 2004 | Oct 25, 2004 | Rio Petroleum, Inc. | Loveless-Langford #3HT | 8,800 | 19730865 |
| 550842 | Sep 14, 2004 | Sep 14, 2004 | Cimarex Energy Co. | Jeffrey #1A | 8,504 | 19731426 |
| 550316 | Aug 31, 2004 | Aug 31, 2004 | Foree Oil Company | Gilliam #1 | 5,900 | 19731564 |
| 548709 | Aug 9, 2004 | Aug 9, 2004 | Crawley Petroleum Corporation | Lamberton #2H | 8,000 | 19731563 |
| 548709Amendment | Aug 9, 2004 | Aug 9, 2004 | Masada Oil & Gas | Lamberton #2H | 8,000 | 19731563 |
| 547600 | Jul 26, 2004 | Jul 26, 2004 | Kadane Corporation | Jackson-Forbes Unit #1 | 8,500 | 19731558 |
| 548115 | Jul 22, 2004 | Jul 22, 2004 | Ampak Oil Company | Cato Unit #1H | 10,500 | 19731270 |
| 548112 | Jul 20, 2004 | Jul 20, 2004 | Ampak Oil Company | Welch #1 | 8,900 | 19731561 |
| 548112Amendment | Jul 20, 2004 | Jul 20, 2004 | Ampak Oil Company | Welch #1 | 8,900 | 19731561 |
| 548113 | Jul 19, 2004 | Jul 19, 2004 | Ampak Oil Company | Abernathy-Baker Unit #1 | 8,900 | 19731560 |
| 548199 | Jul 16, 2004 | Jul 16, 2004 | Texakoma Oil & Gas Corporation | Huse #1H | 8,900 | 19731562 |
| 548199Amendment | Jul 16, 2004 | Jul 16, 2004 | Texakoma Oil & Gas Corporation | Huse #1 | 8,900 | 19731562 |
| 548159 | Jul 13, 2004 | Jul 13, 2004 | Kadane Corporation | Wood, Russell #1A | 8,500 | 19731036 |
| 542699 | Jul 7, 2004 | Jul 7, 2004 | Corda Corporation | Tabor, H. J. B #1 | 8,350 | 19731551 |
| 547622 | Jun 30, 2004 | Jun 30, 2004 | Cimarex Energy Co. | Summerlee Unit #4 | 8,500 | 19731559 |
| 546668 | Jun 8, 2004 | Jun 8, 2004 | Trio Consulting & Management,llc | Boyles "C" #1 | 8,500 | 19731557 |
| 545201 | May 3, 2004 | May 3, 2004 | Dry Fork Production Co., LLC | McLennan-Kennedy #1 | 8,400 | 19731556 |
| 545201Amendment | May 3, 2004 | May 3, 2004 | Dry Fork Production Co., LLC | McLennan-Kennedy #1 | 8,400 | 19731556 |
| 544720 | Apr 21, 2004 | Apr 21, 2004 | Cimarex Energy Co. | Summerlee Unit #3 | 8,500 | 19731555 |
| 544720Amendment | Apr 21, 2004 | Apr 21, 2004 | Cimarex Energy Co. | Summerlee Unit #3 | 8,500 | 19731555 |
| 544720Amendment | Apr 21, 2004 | Apr 21, 2004 | Cimarex Energy Co. | Summerlee Unit #3 | 8,760 | 19731555 |
| 544661 | Apr 20, 2004 | Apr 20, 2004 | Quantum Oil & Gas LLC | Caldwell #1 | 9,000 | 19731554 |
| 544221 | Apr 13, 2004 | Apr 13, 2004 | Cimarex Energy Co. | Summerlee Unit #2 HH | 8,500 | 19731553 |
| 544221Amendment | Apr 13, 2004 | Apr 13, 2004 | Cimarex Energy Co. | Summerlee Unit #2 HH | 8,500 | 19731553 |
| 544004 | Apr 2, 2004 | Apr 2, 2004 | Platinum Energy L. L. C. | Gerald #1HH | 9,000 | 19731347 |
| 543125 | Mar 11, 2004 | Mar 11, 2004 | Geostrat Inc. | Geo Strat- Baker Unit #1 | 8,400 | 19731552 |
| 542940 | Mar 10, 2004 | Mar 10, 2004 | Geostrat Inc. | Hunter #1HH | 8,825 | 19731292 |
| 541056 | Feb 27, 2004 | Feb 27, 2004 | Larson, Perry L Operating Co Inc | Kyle, T #1 | 8,640 | 19730299 |
| 539502 | Dec 10, 2003 | Dec 10, 2003 | Key Energy of Colorado, Inc. | Hurst "D" #7HH | 8,195 | 19731521 |
| 538929 | Nov 24, 2003 | Nov 24, 2003 | Cimarex Energy Co. | JCJ Unit #1 | 8,600 | 19731550 |
| 538671 | Nov 20, 2003 | Nov 20, 2003 | Chestnut Petroleum, Inc. | Mc Clellan #1 | 8,600 | 19731549 |
| 538365 | Nov 18, 2003 | Nov 18, 2003 | Corda Corporation | Lindsey #1 | 8,400 | 19731548 |
| 537428 | Nov 10, 2003 | Nov 10, 2003 | Kadane Corporation | Spears-Jackson-Forbes Unit #2 | 8,500 | 19731545 |
| 538027 | Oct 30, 2003 | Oct 30, 2003 | Cimarex Energy Co. | Durham Farms Unit #1 | 8,700 | 19731547 |
| 537871 | Oct 24, 2003 | Oct 24, 2003 | Cimarex Energy Co. | Bradshaw Unit #1 | 8,600 | 19731546 |
| 536907 | Oct 3, 2003 | Oct 3, 2003 | 3-T Exploration, Inc. | Davis Unit #1 | 8,600 | 19731543 |
| 536966 | Oct 1, 2003 | Oct 1, 2003 | Key Energy of Colorado, Inc. | Tabor Unit #1ST | 8,800 | 19731039 |
| 536908 | Oct 1, 2003 | Oct 1, 2003 | Key Energy of Colorado, Inc. | J & J Ranch Unit #1HH | 8,200 | 19731333 |
| 536033 | Sep 4, 2003 | Sep 4, 2003 | Key Energy of Colorado, Inc. | Hurst B #9H | 8,500 | 19731541 |
| 536033Amendment | Sep 4, 2003 | Sep 4, 2003 | Key Energy of Colorado, Inc. | Hurst B #9H | 8,500 | 19731541 |
| 535029 | Sep 4, 2003 | Sep 4, 2003 | Trio Consulting & Management,llc | Mulkey #2HH | 8,650 | 19731441 |
| 535800 | Aug 26, 2003 | Aug 26, 2003 | Larson, Perry L Operating Co Inc | Kyle, T. #4 | 8,500 | 19731540 |
| 535594 | Aug 25, 2003 | Aug 25, 2003 | Key Energy of Colorado, Inc. | Moore #1 HH | 8,510 | 19730903 |
| 534980 | Aug 19, 2003 | Aug 19, 2003 | Corda Corporation | Tabor, H. J. #2 | 8,095 | 19731290 |
| 535270 | Aug 13, 2003 | Aug 13, 2003 | Key Energy of Colorado, Inc. | Hurst "A" #8 | 8,200 | 19731539 |
| 535270Amendment | Aug 13, 2003 | Aug 13, 2003 | Key Energy of Colorado, Inc. | Hurst "A" #8HH | 8,200 | 19731539 |
| 535056 | Aug 8, 2003 | Aug 8, 2003 | Cimarex Energy Co. | Bellamy Unit #1 | 8,600 | 19731538 |
| 534431 | Aug 4, 2003 | Aug 4, 2003 | Cimarex Energy Co. | Sims Unit #1HH | 8,600 | 19731535 |
| 534630 | Jul 25, 2003 | Jul 25, 2003 | Cimarex Energy Co. | Waldo #1X | 8,800 | 19731537 |
| 534586 | Jul 24, 2003 | Jul 24, 2003 | Cimarex Energy Co. | Parker #1 | 8,900 | 19731536 |
| 534428 | Jul 23, 2003 | Jul 23, 2003 | Rio Petroleum, Inc. | Hanners #1 | 9,000 | 19731534 |
| 534320 | Jul 21, 2003 | Jul 21, 2003 | Cimarex Energy Co. | McLennan Unit #1 | 8,600 | 19731533 |
| 533879 | Jul 11, 2003 | Jul 11, 2003 | Geostrat Inc. | Griffin #1H | 8,300 | 19731532 |
| 533994 | Jul 10, 2003 | Jul 10, 2003 | King Operating Corporation | Johnson Unit #1 | 8,500 | 19731199 |
| 533994Amendment | Jul 10, 2003 | Jul 10, 2003 | King Operating Corporation | Johnson Unit #1 | 8,500 | 19731199 |
| 533462 | Jul 9, 2003 | Jul 9, 2003 | Cimarex Energy Co. | Waldo #1 | 8,800 | 19731529 |
| 533844 | Jul 2, 2003 | Jul 2, 2003 | Cimarex Energy Co. | Jackson Unit #1 | 8,700 | 19731531 |
| 533766 | Jul 2, 2003 | Jul 2, 2003 | Corda Corporation | Davis #1 | 8,000 | 19731530 |
| 533307 | Jun 24, 2003 | Jun 24, 2003 | Foree Oil Company | Sauls #1 #1 | 8,200 | 19730907 |
| 531915 | Jun 20, 2003 | Jun 20, 2003 | Foree Oil Company | Tabor 55 Unit #1 | 5,625 | 19731394 |
| 531915Amendment | Jun 20, 2003 | Jun 20, 2003 | Foree Oil Company | Tabor 55 #1 | 5,625 | 19731394 |
| 531915Amendment | Jun 20, 2003 | Jun 20, 2003 | Foree Oil Company | Tabor 55 #1 | 5,625 | 19731394 |
| 533060 | Jun 12, 2003 | Jun 12, 2003 | Cimarex Energy Co. | Pursley Unit #1 | 8,600 | 19731528 |
| 532104 | May 23, 2003 | May 23, 2003 | Masada Oil & Gas | Loveless #4 | 1,000 | 19731635 |
| 532208 | May 21, 2003 | May 21, 2003 | Cimarex Energy Co. | Summerlee-Stepp Unit #1H | 10,035 | 19731527 |
| 532208Amendment | May 21, 2003 | May 21, 2003 | Cimarex Energy Co. | Summerlee-Stepp Unit #1HH | 10,115 | 19731527 |
| 531366 | May 1, 2003 | May 1, 2003 | Key Energy of Colorado, Inc. | Summer Lee Unit #1HH | 9,800 | 19720035 |
| 531366Amendment | May 1, 2003 | May 1, 2003 | Key Energy of Colorado, Inc. | Summerlee Unit #1HH | 9,800 | 19720035 |
| 530125 | Apr 29, 2003 | Apr 29, 2003 | Masada Oil & Gas | Ann #1 | 1,000 | 19731525 |
| 530604 | Apr 15, 2003 | Apr 15, 2003 | Key Energy of Colorado, Inc. | Cato "96" Unit #1HH | 8,880 | 19731081 |
| 530436 | Apr 9, 2003 | Apr 9, 2003 | Dry Fork Production Co | Pursley-Bell Unit #1 | 8,500 | 19730667 |
| 530124 | Apr 2, 2003 | Apr 2, 2003 | Masada Oil & Gas | Loveless #6 | 1,000 | 19731524 |
| 529316 | Mar 12, 2003 | Mar 12, 2003 | Taylor, Ben J. Inc. | Holcomb #1 | 8,900 | 19730854 |
| 529071 | Mar 7, 2003 | Mar 7, 2003 | Key Energy of Colorado, Inc. | G. P. #3 | 8,600 | 19731523 |
| 528029 | Feb 19, 2003 | Feb 19, 2003 | Key Energy of Colorado, Inc. | Hurst #7HH | 9,800 | 19731521 |
| 528029Amendment | Feb 19, 2003 | Feb 19, 2003 | Key Energy of Colorado, Inc. | Hurst #7HH | 8,633 | 19731521 |
| 528350 | Feb 11, 2003 | Feb 11, 2003 | Corda Corporation | Young, J. #1 | 8,400 | 19731522 |
| 527089 | Jan 8, 2003 | Jan 8, 2003 | Key Energy of Colorado, Inc. | Hurst #6HH | 10,200 | 19700133 |
| 526127 | Dec 10, 2002 | Dec 10, 2002 | 3-T Exploration, Inc. | Thompson #1 | 8,600 | 19731520 |
| 525465 | Nov 20, 2002 | Nov 20, 2002 | Corda Corporation | McClellan-Swofford Unit #1 | 8,350 | 19731519 |
| 525485 | Nov 14, 2002 | Nov 14, 2002 | Trio Consulting & Management,llc | Trio - Baker Unit #1 | 8,400 | 19731518 |
| 525311 | Nov 8, 2002 | Nov 8, 2002 | Key Energy of Colorado, Inc. | Owens Unit #1HH | 9,000 | 19730836 |
| 525029 | Nov 1, 2002 | Nov 1, 2002 | Key Energy of Colorado, Inc. | McNabb-Atnip Unit #1H | 10,800 | 19730900 |
| 524808 | Oct 23, 2002 | Oct 23, 2002 | Foree Oil Company | Mikkelsen #1 | 5,000 | 19731517 |
| 524799 | Oct 21, 2002 | Oct 21, 2002 | Ampak Oil Company | Turner #1 | 8,900 | 19731516 |
| 524378 | Oct 9, 2002 | Oct 9, 2002 | Masada Oil & Gas | Loveless #2 | 1,000 | 19731515 |
| 524282 | Oct 7, 2002 | Oct 7, 2002 | Inland Ocean, Inc. | Payne #1 | 8,700 | 19731514 |