| 758474 | Mar 14, 2013 | Mar 14, 2013 | Enexco, Inc. | Turner #5 | 8,300 | 19731697 |
| 758187 | Mar 11, 2013 | Mar 11, 2013 | Enexco, Inc. | Gafford-Turner Farms #1 | 7,700 | 19731375 |
| 753497 | Feb 19, 2013 | Feb 19, 2013 | Corda Corporation | Word #6 | 9,000 | 19731695 |
| 755160 | Jan 25, 2013 | Jan 25, 2013 | Trio Consulting & Management,llc | Knowles-Denham Unit #1 | 6,200 | 19731696 |
| 753572 | Jan 24, 2013 | Jan 24, 2013 | Rio Petroleum, Inc. | Ms. Bettye A #4136 | 8,600 | 19731694 |
| 752375 | Dec 5, 2012 | Dec 5, 2012 | Trio Consulting & Management,llc | Palaura Bell Heirs-Olson Unit #1 | 8,700 | 19731693 |
| 752375Amendment | Dec 5, 2012 | Dec 5, 2012 | Trio Consulting & Management,llc | Palaura Bell Heirs-Olson Unit #1 | 8,700 | 19731693 |
| 750633 | Nov 2, 2012 | Nov 2, 2012 | Anschutz Exploration Corporation | Cato-Bradshaw #1HH | 9,000 | 19731692 |
| 750633Amendment | Nov 2, 2012 | Nov 2, 2012 | Anschutz Exploration Corporation | Cato-Bradshaw #1HH | 9,000 | 19731692 |
| 749349 | Oct 12, 2012 | Oct 12, 2012 | Anschutz Exploration Corporation | Holcomb #2HH | 9,000 | 19731691 |
| 749049 | Oct 8, 2012 | Oct 8, 2012 | Enexco, Inc. | McNabb #1 | 8,600 | 19731690 |
| 749049Amendment | Oct 8, 2012 | Oct 8, 2012 | Enexco, Inc. | McNabb #1 | 8,600 | 19731690 |
| 742934 | Jul 3, 2012 | Jul 3, 2012 | Holmes Exploration, LLC | Griffin 7 #2HH | 13,000 | 19731689 |
| 740130 | May 17, 2012 | May 17, 2012 | Echo Production, Inc. | Conley A #2HH | 8,000 | 19731688 |
| 740075 | May 17, 2012 | May 17, 2012 | Holmes Exploration, LLC | Griffin 7 #3HH | 13,000 | 19731687 |
| 736862 | Apr 30, 2012 | Apr 30, 2012 | Xplore Operating, LLC | Lindsey Unit #1 | 5,800 | 19731683 |
| 738610 | Apr 27, 2012 | Apr 27, 2012 | Echo Production, Inc. | C.G. Conley #4HH | 8,200 | 19731686 |
| 738024 | Apr 23, 2012 | Apr 23, 2012 | Holmes Exploration, LLC | Zip 74 #1HH | 13,000 | 19731685 |
| 737825 | Apr 23, 2012 | Apr 23, 2012 | Enexco, Inc. | Turner #4 | 7,900 | 19731684 |
| 737825Amendment | Apr 23, 2012 | Apr 23, 2012 | Enexco, Inc. | Turner #4 | 7,900 | 19731684 |
| 736520 | Apr 5, 2012 | Apr 5, 2012 | Anschutz Exploration Corporation | Gerald Farms #1HH | 12,350 | 19731682 |
| 736520Amendment | Apr 5, 2012 | Apr 5, 2012 | Anschutz Exploration Corporation | Cato #2HH | 9,000 | 19731682 |
| 734893 | Mar 30, 2012 | Mar 30, 2012 | Dimock Operating Company | G. Mertink #1 | 8,350 | 19730793 |
| 732842 | Feb 3, 2012 | Feb 3, 2012 | Holmes Exploration, LLC | Beverly 13 #1HH | 13,000 | 19731681 |
| 731182 | Feb 3, 2012 | Feb 3, 2012 | Thompson, Richard W. Inc. | H E C #5 | 8,600 | 19731680 |
| 725641 | Jan 18, 2012 | Jan 18, 2012 | Xplore Operating, LLC | Panhandle Compress Unit #1 | 8,700 | 19731673 |
| 730952 | Jan 9, 2012 | Jan 9, 2012 | Enexco, Inc. | Fowler #1 | 8,300 | 19731679 |
| 729447 | Dec 14, 2011 | Dec 14, 2011 | Holmes Exploration, LLC | Spanky 2 #2HH | 13,000 | 19731678 |
| 728943 | Nov 30, 2011 | Nov 30, 2011 | Anschutz Exploration Corporation | Cato #1 | 8,300 | 19731677 |
| 728259 | Nov 21, 2011 | Nov 21, 2011 | Holmes Exploration, LLC | Angelo 4 #2HH | 13,000 | 19731676 |
| 728204 | Nov 17, 2011 | Nov 17, 2011 | Enexco, Inc. | Turner #3 | 7,900 | 19731675 |
| 728204Amendment | Nov 17, 2011 | Nov 17, 2011 | Enexco, Inc. | Turner #3 | 7,900 | 19731675 |
| 726571 | Oct 25, 2011 | Oct 25, 2011 | Echo Production, Inc. | Conley A #1HH | 8,250 | 19731674 |
| 724596 | Sep 23, 2011 | Sep 23, 2011 | Ampak Oil Company | Ferguson 66 #1 | 8,500 | 19731671 |
| 724549 | Sep 23, 2011 | Sep 23, 2011 | Xplore Operating, LLC | Aaron Unit #1 | 5,800 | 19731670 |
| 721769 | Aug 12, 2011 | Aug 12, 2011 | Anschutz Exploration Corporation | Wit Ranch #1 | 8,250 | 19731669 |
| 720892 | Jul 28, 2011 | Jul 28, 2011 | Echo Production, Inc. | W.H. Flynn #1 HH | 8,250 | 19731668 |
| 719871 | Jul 11, 2011 | Jul 11, 2011 | Anschutz Exploration Corporation | Holcomb #1 | 8,500 | 19731667 |
| 719871Amendment | Jul 11, 2011 | Jul 11, 2011 | Anschutz Exploration Corporation | Holcomb #1 | 8,560 | 19731667 |
| 719871Amendment | Jul 11, 2011 | Jul 11, 2011 | Anschutz Exploration Corporation | Holcomb #1 | 8,560 | 19731667 |
| 719607 | Jul 7, 2011 | Jul 7, 2011 | Echo Production, Inc. | P.G. Wilson #2 HH | 8,250 | 19731666 |
| 719607Amendment | Jul 7, 2011 | Jul 7, 2011 | Echo Production, Inc. | P.G. Wilson #2 HH | 8,250 | 19731666 |
| 718474 | Jun 17, 2011 | Jun 17, 2011 | Dry Fork Production Co., LLC | Watson #1 | 6,000 | 19731665 |
| 717957 | Jun 16, 2011 | Jun 16, 2011 | Trio Consulting & Management,llc | Sharp-Newby #1 | 6,100 | 19731664 |
| 718004 | Jun 10, 2011 | Jun 10, 2011 | Trio Consulting & Management,llc | Lindsey-Hamby Unit #1 | 6,100 | 19731663 |
| 716433 | May 18, 2011 | May 18, 2011 | Gaedeke Oil & Gas Operating, LLC | Johnson 1 #1HH | 13,000 | 19731662 |
| 716433Amendment | May 18, 2011 | May 18, 2011 | Holmes Exploration, LLC | Johnson 1 #1HH | 13,000 | 19731662 |
| 714828 | Apr 28, 2011 | Apr 28, 2011 | Enexco, Inc. | Turner #2 | 7,900 | 19731661 |
| 714828Amendment | Apr 28, 2011 | Apr 28, 2011 | Enexco, Inc. | Turner #2 | 7,900 | 19731661 |
| 714634 | Apr 25, 2011 | Apr 25, 2011 | Trio Consulting & Management,llc | SS-Stepp #1 | 8,600 | 19731660 |
| 712919 | Mar 29, 2011 | Mar 29, 2011 | Cleary Petroleum Corporation | Cato 2 #1 | 9,000 | 19731659 |
| 708808 | Jan 25, 2011 | Jan 25, 2011 | Cimarex Energy Co. | Bottoms 11 St 1 #1 | 8,700 | 19730833 |
| 706633 | Dec 10, 2010 | Dec 10, 2010 | Enexco, Inc. | Turner #1 | 7,800 | 19731658 |
| 706633Amendment | Dec 10, 2010 | Dec 10, 2010 | Enexco, Inc. | Turner #1 | 7,900 | 19731658 |
| 706082 | Dec 2, 2010 | Dec 2, 2010 | Cimarex Energy Co. | Durham Farms Unit #1 | 8,700 | 19731547 |
| 706033 | Dec 1, 2010 | Dec 1, 2010 | Rja TX Oil & Gas, LLC | Howard #1002 | 8,400 | 19731657 |
| 705855 | Nov 24, 2010 | Nov 24, 2010 | Echo Production, Inc. | Berngen-Conley 'A' #1HH | 8,500 | 19731656 |
| 705855Amendment | Nov 24, 2010 | Nov 24, 2010 | Echo Production, Inc. | Berngen-Conley 'A' #1HH | 8,500 | 19731656 |
| 704845 | Nov 9, 2010 | Nov 9, 2010 | Rja TX Oil & Gas, LLC | Richardson #1501A | 8,200 | 19731655 |
| 704845Amendment | Nov 9, 2010 | Nov 9, 2010 | Rja TX Oil & Gas, LLC | Richardson #1501A | 8,400 | 19731655 |
| 704538 | Nov 2, 2010 | Nov 2, 2010 | Echo Production, Inc. | Irvin-Conley 'D' Unit #1HH | 8,200 | 19731654 |
| 704538Amendment | Nov 2, 2010 | Nov 2, 2010 | Echo Production, Inc. | Irvin-Conley 'D' Unit #1HH | 8,200 | 19731654 |
| 701847 | Nov 2, 2010 | Nov 2, 2010 | Cimarex Energy Co. | Gilliam, C. J. #3 | 8,981 | 19730278 |
| 703520 | Oct 13, 2010 | Oct 13, 2010 | Rja TX Oil & Gas, LLC | Richardson #1501 | 8,200 | 19731653 |
| 703299 | Oct 8, 2010 | Oct 8, 2010 | Trio Consulting & Management,llc | Knowles Unit #1 | 6,300 | 19731652 |
| 703299Amendment | Oct 8, 2010 | Oct 8, 2010 | Trio Consulting & Management,llc | Knowles Unit #1 | 6,300 | 19731652 |
| 700191 | Aug 5, 2010 | Aug 5, 2010 | Katana Energy, LLC | Preston #1 | 8,800 | 19731651 |
| 699340 | Jul 22, 2010 | Jul 22, 2010 | Echo Production, Inc. | Wilson, P. G. #5 | 5,600 | 19731650 |
| 698361 | Jul 5, 2010 | Jul 5, 2010 | DDD Exploration, Inc. | Carolyn Tom #1 | 6,000 | 19731649 |
| 694559 | May 13, 2010 | May 13, 2010 | Slate Holdings, Inc. | Grange #1A | 9,000 | 19731648 |
| 693309 | Mar 30, 2010 | Mar 30, 2010 | EOG Resources, Inc. | Sims 9 #1 | 9,000 | 19731647 |
| 692222 | Mar 15, 2010 | Mar 15, 2010 | Ampak Oil Company | Boyles 'B' #2 | 8,500 | 19731646 |
| 689004 | Dec 29, 2009 | Dec 29, 2009 | Echo Production, Inc. | P. G. Wilson #1HH | 11,000 | 19731645 |
| 689004Amendment | Dec 29, 2009 | Dec 29, 2009 | Echo Production, Inc. | P. G. Wilson #1HH | 11,000 | 19731645 |
| 684801 | Dec 4, 2009 | Dec 4, 2009 | Xplore Operating, LLC | Park Unit #2 | 6,500 | 19731643 |
| 686842 | Nov 4, 2009 | Nov 4, 2009 | Gaedeke Oil & Gas Operating, LLC | Gilliam-Hanners #1 | 9,000 | 19731387 |
| 686551 | Oct 23, 2009 | Oct 23, 2009 | Spartan Operating Company, Inc. | Cato #1 | 8,400 | 19731644 |
| 686373 | Oct 21, 2009 | Oct 21, 2009 | Gaedeke Oil & Gas Operating, LLC | Beverly #1 | 9,300 | 19730452 |
| 681285 | May 20, 2009 | May 20, 2009 | DDD Exploration, Inc. | Lemons 301 #1RE | 5,700 | 19730739 |
| 681051 | May 8, 2009 | May 8, 2009 | Echo Production, Inc. | C.G. Conley #3HH | 11,000 | 19731642 |
| 679291 | Mar 18, 2009 | Mar 18, 2009 | Corda Corporation | Jackson-O'Neal Unit #1 | 9,300 | 19731641 |
| 676325 | Dec 19, 2008 | Dec 19, 2008 | Trio Consulting & Management,llc | SS-Embry #1 | 8,700 | 19731640 |
| 676325Amendment | Dec 19, 2008 | Dec 19, 2008 | Trio Consulting & Management,llc | SS-Embry #1 | 8,700 | 19731640 |
| 675104 | Nov 25, 2008 | Nov 25, 2008 | Ampak Oil Company | Wood Unit #1 | 9,000 | 19731639 |
| 674719 | Nov 15, 2008 | Nov 15, 2008 | Corda Corporation | Emerson #1 | 8,600 | 19731638 |
| 667068 | Oct 29, 2008 | Oct 29, 2008 | Veneto Exploration, LLC | Kimble, Neal #1 | 8,000 | 19731634 |
| 672087 | Oct 8, 2008 | Oct 8, 2008 | Dry Fork Production Co., LLC | Johnson #1 | 8,000 | 19731637 |
| 669812 | Sep 18, 2008 | Sep 18, 2008 | Ampak Oil Company | King Unit #1 | 9,000 | 19731636 |
| 667575 | Sep 17, 2008 | Sep 17, 2008 | Masada Oil & Gas | Loveless #4 | 1,000 | 19731635 |
| 667399 | Aug 9, 2008 | Aug 9, 2008 | 3-T Exploration, Inc. | Hardin #1R | 9,000 | 19731250 |
| 664705 | Jul 9, 2008 | Jul 9, 2008 | Trio Consulting & Management,llc | Ferguson-Cummins Unit #1 | 8,800 | 19731633 |
| 663779 | Jun 25, 2008 | Jun 25, 2008 | Dry Fork Production Co., LLC | McSpadden #1 | 6,000 | 19731632 |
| 656591 | Jun 6, 2008 | Jun 6, 2008 | Bettis, Boyle & Stovall | Cato #2 | 6,589 | 19731614 |
| 661637 | May 30, 2008 | May 30, 2008 | Dry Fork Production Co., LLC | Morgan #1 | 9,000 | 19731629 |
| 661831 | May 29, 2008 | May 29, 2008 | Ampak Oil Company | Boyles #7 | 8,500 | 19731631 |
| 661541 | May 29, 2008 | May 29, 2008 | Trio Consulting & Management,llc | B + B #1 | 8,300 | 19731630 |
| 660988 | May 27, 2008 | May 27, 2008 | Echo Production, Inc. | Conley, C. G. #2HH | 11,500 | 19731628 |
| 658962 | Apr 23, 2008 | Apr 23, 2008 | Dry Fork Production Co., LLC | Wells #1 | 9,000 | 19731627 |
| 658730 | Apr 15, 2008 | Apr 15, 2008 | Corda Corporation | Fowler #1 | 8,100 | 19731626 |
| 658695 | Apr 14, 2008 | Apr 14, 2008 | Rio Petroleum, Inc. | Magee #2 | 8,500 | 19731625 |