| 659589 | Jun 30, 2008 | Jun 30, 2008 | Cimarex Energy Co. of Colorado | Johnson #5 | 3,000 | 17932574 |
| 659589 | Jun 30, 2008 | Jun 30, 2008 | Cimarex Energy Co. of Colorado | Johnson #5 | 3,000 | 17932574 |
| 661599 | May 28, 2008 | May 28, 2008 | Cimarex Energy Co. of Colorado | Rice #5 | 3,000 | 17932576 |
| 661250 | May 20, 2008 | May 20, 2008 | Rimrock Gas Company | Brown Dolomite Unit #3 | 3,300 | 17932575 |
| 660180 | May 6, 2008 | May 6, 2008 | Legacy Reserves Operating LP | Wood #12 | 3,075 | 17932267 |
| 646399 | Dec 4, 2007 | Dec 4, 2007 | Bradley Operating Co. | Gething -B- #14 | 2,850 | 17932573 |
| 647459 | Oct 12, 2007 | Oct 12, 2007 | Brigham Oil & Gas, L.P. | Beville-Connell #1 | 12,600 | 17930607 |
| 643644 | Aug 9, 2007 | Aug 9, 2007 | Cimarex Energy Co. of Colorado | Castleberry #4 | 3,200 | 17932572 |
| 643642 | Aug 9, 2007 | Aug 9, 2007 | Cimarex Energy Co. of Colorado | Willis #4 | 3,200 | 17932571 |
| 635130 | Mar 20, 2007 | Mar 20, 2007 | Cimarex Energy Co. of Colorado | Hibler #4 | 3,000 | 17932570 |
| 629040 | Nov 15, 2006 | Nov 15, 2006 | Maxwell Operating, Inc. | Mathers #7402AR | 8,600 | 17932569 |
| 627143 | Oct 6, 2006 | Oct 6, 2006 | Cimarex Energy Co. of Colorado | Hudgins "A" #3 | 3,000 | 17932568 |
| 626075 | Sep 18, 2006 | Sep 18, 2006 | Cimarex Energy Co. of Colorado | Boyd #2 | 3,000 | 17932229 |
| 626075 | Sep 18, 2006 | Sep 18, 2006 | Cimarex Energy Co. of Colorado | Boyd #2H | 5,000 | 17932229 |
| 626074 | Sep 18, 2006 | Sep 18, 2006 | Cimarex Energy Co. of Colorado | Goldstone #2 | 3,000 | 17932245 |
| 626074 | Sep 18, 2006 | Sep 18, 2006 | Cimarex Energy Co. of Colorado | Goldstone #2H | 5,000 | 17932245 |
| 620088 | Jul 24, 2006 | Jul 24, 2006 | Petco Petroleum Corp. | Davidson, M. #16 | 3,400 | 17932561 |
| 620088 | Jul 24, 2006 | Jul 24, 2006 | Petco Petroleum Corp. | Davidson, M. #16 | 3,400 | 17932561 |
| 620087 | Jul 24, 2006 | Jul 24, 2006 | Petco Petroleum Corp. | Davidson, M. #15 | 3,400 | 17932562 |
| 621577 | Jun 27, 2006 | Jun 27, 2006 | Cimarex Energy Co. of Colorado | Stubbs #4 | 3,200 | 17932567 |
| 621576 | Jun 27, 2006 | Jun 27, 2006 | Cimarex Energy Co. of Colorado | Darsey "A" #4 | 3,200 | 17932566 |
| 621575 | Jun 27, 2006 | Jun 27, 2006 | Cimarex Energy Co. of Colorado | Wilson "A" #4 | 3,200 | 17932565 |
| 621000 | Jun 15, 2006 | Jun 15, 2006 | Cimarex Energy Co. of Colorado | Glass "A" #3 | 3,200 | 17932564 |
| 620314 | Jun 2, 2006 | Jun 2, 2006 | Cimarex Energy Co. of Colorado | Patterson #4 | 3,200 | 17932563 |
| 618888 | May 9, 2006 | May 9, 2006 | Gruy Petroleum Management Co. | Yoes #3 | 3,200 | 17932560 |
| 618885 | May 9, 2006 | May 9, 2006 | Gruy Petroleum Management Co. | Hudgins #3 | 3,200 | 17932559 |
| 615001 | Mar 1, 2006 | Mar 1, 2006 | Gruy Petroleum Management Co. | Gross #3 | 3,200 | 17932558 |
| 614907 | Feb 27, 2006 | Feb 27, 2006 | Gruy Petroleum Management Co. | Griffin #2 | 3,200 | 17932557 |
| 614907 | Feb 27, 2006 | Feb 27, 2006 | Cimarex Energy Co. of Colorado | Griffin #2 | 3,000 | 17932557 |
| 614678 | Feb 23, 2006 | Feb 23, 2006 | Gruy Petroleum Management Co. | Fowler "C" #4 | 3,200 | 17932556 |
| 614678 | Feb 23, 2006 | Feb 23, 2006 | Gruy Petroleum Management Co. | Fowler "C" #4 | 3,200 | 17932556 |
| 614677 | Feb 23, 2006 | Feb 23, 2006 | Gruy Petroleum Management Co. | Tibbets #3 | 3,200 | 17932555 |
| 614588 | Feb 21, 2006 | Feb 21, 2006 | Gruy Petroleum Management Co. | Hudgins "B" #4 | 3,200 | 17932554 |
| 614300 | Feb 16, 2006 | Feb 16, 2006 | Gruy Petroleum Management Co. | Darsey "A" #4 | 3,200 | 17932553 |
| 614298 | Feb 16, 2006 | Feb 16, 2006 | Gruy Petroleum Management Co. | Griffin #3 | 3,200 | 17932552 |
| 613693 | Feb 16, 2006 | Feb 16, 2006 | Exxcel Production Company | Faulkner, S. -A- #25W | 2,955 | 17903097 |
| 614089 | Feb 14, 2006 | Feb 14, 2006 | Gruy Petroleum Management Co. | Wilson #4 | 3,200 | 17932551 |
| 613758 | Feb 7, 2006 | Feb 7, 2006 | Gruy Petroleum Management Co. | Stewart #3 | 3,200 | 17932550 |
| 613757 | Feb 7, 2006 | Feb 7, 2006 | Gruy Petroleum Management Co. | Lewis #4051 | 3,200 | 17932549 |
| 612764 | Jan 20, 2006 | Jan 20, 2006 | Gruy Petroleum Management Co. | Hibler "A" #4 | 3,200 | 17932548 |
| 612689 | Jan 20, 2006 | Jan 20, 2006 | Gruy Petroleum Management Co. | Moreman #4 | 3,200 | 17932547 |
| 612688 | Jan 20, 2006 | Jan 20, 2006 | Gruy Petroleum Management Co. | Goldstone #4 | 3,200 | 17932546 |
| 612687 | Jan 20, 2006 | Jan 20, 2006 | Gruy Petroleum Management Co. | Johnson "C" #2 | 3,200 | 17932545 |
| 612606 | Jan 18, 2006 | Jan 18, 2006 | Gruy Petroleum Management Co. | Dwyer #4 | 3,200 | 17932544 |
| 612606 | Jan 18, 2006 | Jan 18, 2006 | Gruy Petroleum Management Co. | Dwyer #4 | 3,200 | 17932544 |
| 612402 | Jan 17, 2006 | Jan 17, 2006 | Gruy Petroleum Management Co. | Willis "A" #4 | 3,200 | 17932543 |
| 611935 | Jan 6, 2006 | Jan 6, 2006 | Gruy Petroleum Management Co. | Yoes "A" #2 | 3,200 | 17932542 |
| 611934 | Jan 6, 2006 | Jan 6, 2006 | Gruy Petroleum Management Co. | Yoes "A" #3 | 3,200 | 17932541 |
| 611932 | Jan 6, 2006 | Jan 6, 2006 | Gruy Petroleum Management Co. | Yoes "A" #4 | 3,200 | 17932540 |
| 611932 | Jan 6, 2006 | Jan 6, 2006 | Gruy Petroleum Management Co. | Yoes "A" #4 | 3,200 | 17932540 |
| 611931 | Jan 6, 2006 | Jan 6, 2006 | Gruy Petroleum Management Co. | Johnson "C" #3 | 3,200 | 17932539 |
| 611931 | Jan 6, 2006 | Jan 6, 2006 | Gruy Petroleum Management Co. | Johnson "C" #3 | 3,200 | 17932539 |
| 609891 | Nov 29, 2005 | Nov 29, 2005 | Mon Corp. | Palmer, J. H. #15 | 3,600 | 17932538 |
| 609453 | Nov 15, 2005 | Nov 15, 2005 | Gruy Petroleum Management Co. | Goldstone #3 | 3,200 | 17932537 |
| 609450 | Nov 15, 2005 | Nov 15, 2005 | Gruy Petroleum Management Co. | Yoes #4 | 3,200 | 17932536 |
| 609450 | Nov 15, 2005 | Nov 15, 2005 | Gruy Petroleum Management Co. | Yoes #4 | 3,200 | 17932536 |
| 609448 | Nov 15, 2005 | Nov 15, 2005 | Gruy Petroleum Management Co. | Willis "A" #3 | 3,200 | 17932535 |
| 609108 | Nov 8, 2005 | Nov 8, 2005 | Gruy Petroleum Management Co. | Beasley #5031 | 3,200 | 17932534 |
| 609107 | Nov 8, 2005 | Nov 8, 2005 | Gruy Petroleum Management Co. | Patterson #3 | 3,200 | 17932533 |
| 609106 | Nov 8, 2005 | Nov 8, 2005 | Gruy Petroleum Management Co. | Stewart #2 | 3,200 | 17932532 |
| 608580 | Oct 28, 2005 | Oct 28, 2005 | Gruy Petroleum Management Co. | Darsey #5 | 3,200 | 17932531 |
| 608579 | Oct 28, 2005 | Oct 28, 2005 | Gruy Petroleum Management Co. | Wilson #3 | 3,200 | 17932530 |
| 608578 | Oct 28, 2005 | Oct 28, 2005 | Gruy Petroleum Management Co. | Stubbs #3 | 3,200 | 17932529 |
| 608577 | Oct 28, 2005 | Oct 28, 2005 | Gruy Petroleum Management Co. | Burdine "A" #3 | 3,200 | 17932528 |
| 608576 | Oct 28, 2005 | Oct 28, 2005 | Gruy Petroleum Management Co. | Hunt #4 | 3,200 | 17932527 |
| 608575 | Oct 28, 2005 | Oct 28, 2005 | Gruy Petroleum Management Co. | Massey #4 | 3,200 | 17932526 |
| 608572 | Oct 28, 2005 | Oct 28, 2005 | Gruy Petroleum Management Co. | Beasley #4031 | 3,200 | 17932525 |
| 608370 | Oct 24, 2005 | Oct 24, 2005 | Gruy Petroleum Management Co. | Woods #4 | 3,200 | 17932523 |
| 608369 | Oct 24, 2005 | Oct 24, 2005 | Gruy Petroleum Management Co. | Moore #4 | 3,200 | 17932522 |
| 608368 | Oct 24, 2005 | Oct 24, 2005 | Gruy Petroleum Management Co. | Abbott #3 | 3,200 | 17932524 |
| 608367 | Oct 24, 2005 | Oct 24, 2005 | Gruy Petroleum Management Co. | Abbott #4 | 3,200 | 17932520 |
| 608366 | Oct 24, 2005 | Oct 24, 2005 | Gruy Petroleum Management Co. | Kennedy #3 | 3,200 | 17932521 |
| 608365 | Oct 24, 2005 | Oct 24, 2005 | Gruy Petroleum Management Co. | Boyd #4 | 3,200 | 17932519 |
| 607990 | Oct 18, 2005 | Oct 18, 2005 | Gruy Petroleum Management Co. | Boyd #3 | 3,200 | 17932518 |
| 607989 | Oct 18, 2005 | Oct 18, 2005 | Gruy Petroleum Management Co. | Glass #3 | 3,200 | 17932517 |
| 607988 | Oct 18, 2005 | Oct 18, 2005 | Gruy Petroleum Management Co. | Glass #4 | 3,200 | 17932516 |
| 607987 | Oct 18, 2005 | Oct 18, 2005 | Gruy Petroleum Management Co. | Dwyer #3 | 3,200 | 17932514 |
| 607986 | Oct 18, 2005 | Oct 18, 2005 | Gruy Petroleum Management Co. | Hudgins #4 | 3,200 | 17932512 |
| 607985 | Oct 18, 2005 | Oct 18, 2005 | Gruy Petroleum Management Co. | Hunt #3 | 3,200 | 17932515 |
| 607984 | Oct 18, 2005 | Oct 18, 2005 | Gruy Petroleum Management Co. | Cubine #4 | 3,200 | 17932513 |
| 607984 | Oct 18, 2005 | Oct 18, 2005 | Gruy Petroleum Management Co. | Cubine #4 | 3,200 | 17932513 |
| 607983 | Oct 18, 2005 | Oct 18, 2005 | Gruy Petroleum Management Co. | Shaw "A" #4 | 3,200 | 17932510 |
| 607982 | Oct 18, 2005 | Oct 18, 2005 | Gruy Petroleum Management Co. | Beasley B #4 | 3,200 | 17932511 |
| 607981 | Oct 18, 2005 | Oct 18, 2005 | Gruy Petroleum Management Co. | Wilson 'A' #3 | 3,200 | 17932509 |
| 607469 | Oct 10, 2005 | Oct 10, 2005 | Petco Petroleum Corp. | Combs #10A | 3,200 | 17932508 |
| 607468 | Oct 10, 2005 | Oct 10, 2005 | Petco Petroleum Corp. | Bowers, J.B.-A- #14 | 3,300 | 17932507 |
| 607466 | Oct 10, 2005 | Oct 10, 2005 | Petco Petroleum Corp. | Davidson, M. #14 | 3,300 | 17932506 |
| 606416 | Sep 15, 2005 | Sep 15, 2005 | Maxwell Operating, Inc. | Mathers #2074R | 8,600 | 17931940 |
| 605534 | Aug 29, 2005 | Aug 29, 2005 | Taylor-Clayton-Hawley | Taylor Ranch /WHT/ #21R | 3,200 | 17932505 |
| 604469 | Aug 8, 2005 | Aug 8, 2005 | Travelers Oil Company | Mathers #5 | 2,605 | 17903769 |
| 603937 | Jul 28, 2005 | Jul 28, 2005 | Burger, Ken | Lynn #2 | 3,100 | 17932504 |
| 602313 | Jun 21, 2005 | Jun 21, 2005 | Eakin Brothers | Anderson #1R | 3,100 | 17932503 |
| 561243 | May 2, 2005 | May 2, 2005 | Clay Petroleum | Chris #2 | 2,925 | 17930627 |
| 560885 | Apr 21, 2005 | Apr 21, 2005 | Gruy Petroleum Management Co. | Darsey 'A' #3 | 3,500 | 17932502 |
| 560318 | Apr 18, 2005 | Apr 18, 2005 | Burger, Ken | Lynn #1 | 3,100 | 17932501 |
| 559671 | Mar 29, 2005 | Mar 29, 2005 | Pantera Energy Company | Burke #11 | 3,999 | 17904805 |
| 558026 | Feb 22, 2005 | Feb 22, 2005 | Gruy Petroleum Management Co. | Miller #3 | 3,000 | 17932500 |
| 558025 | Feb 22, 2005 | Feb 22, 2005 | Gruy Petroleum Management Co. | Miller #2 | 3,000 | 17932499 |
| 558024 | Feb 22, 2005 | Feb 22, 2005 | Gruy Petroleum Management Co. | Beasley -A- #4 | 3,000 | 17932498 |
| 558023 | Feb 22, 2005 | Feb 22, 2005 | Gruy Petroleum Management Co. | Hess #4 | 3,000 | 17932497 |