| 768821 | Aug 28, 2013 | Aug 28, 2013 | CR3 Operating Company, L.L.C. | Stinnett Ranch #1 | 10,000 | 37531800 |
| 766310 | Jul 12, 2013 | Jul 12, 2013 | Adams Affiliates, Inc. | Bivins #2860A | 2,400 | 37531799 |
| 766004 | Jul 11, 2013 | Jul 11, 2013 | Beren Corporation | Masterson Estate #87 | 2,370 | 37531798 |
| 765995 | Jul 11, 2013 | Jul 11, 2013 | Beren Corporation | Masterson Estate #83 | 2,370 | 37531797 |
| 765991 | Jul 10, 2013 | Jul 10, 2013 | Beren Corporation | Masterson Estate #82 | 2,370 | 37531796 |
| 763487 | May 30, 2013 | May 30, 2013 | Pedestal Oil Company, Inc. | Frying Pan Ranch #1 | 8,000 | 37531795 |
| 756816 | Feb 25, 2013 | Feb 25, 2013 | Blake Production Company, Inc. | The Strip #1 | 4,000 | 37530964 |
| 750040 | Nov 7, 2012 | Nov 7, 2012 | Mid-Con Energy Operating, Inc. | Bivins Ranch #1302 | 5,800 | 37531794 |
| 750053 | Oct 26, 2012 | Oct 26, 2012 | Mid-Con Energy Operating, Inc. | Bivins Ranch #1703 | 5,800 | 37531793 |
| 750053Amendment | Oct 26, 2012 | Oct 26, 2012 | Mid-Con Energy Operating, Inc. | Bivins Ranch #1703 | 5,800 | 37531793 |
| 750053Amendment | Oct 26, 2012 | Oct 26, 2012 | Mid-Con Energy Operating, Inc. | Bivins Ranch #1703 | 5,800 | 37531793 |
| 740689 | May 23, 2012 | May 23, 2012 | Pioneer Natural Res. USA, Inc. | Bivins #149R | 2,500 | 37531792 |
| 736467 | Apr 9, 2012 | Apr 9, 2012 | Adams Affiliates, Inc. | Bivins #2877 | 2,300 | 37531791 |
| 736440 | Apr 3, 2012 | Apr 3, 2012 | Adams Affiliates, Inc. | Bivins #2882 | 2,300 | 37531790 |
| 736422 | Mar 20, 2012 | Mar 20, 2012 | Laddex, Ltd. | Baca #1023R | 6,100 | 37531789 |
| 733729 | Feb 23, 2012 | Feb 23, 2012 | Laddex, Ltd. | Baca #1023 | 6,100 | 37531788 |
| 730270 | Dec 22, 2011 | Dec 22, 2011 | Laddex, Ltd. | Martian #312 | 4,500 | 37531787 |
| 727675 | Nov 29, 2011 | Nov 29, 2011 | Linn Operating, Inc. | Bivins #A 20H | 3,800 | 37531771 |
| 721075 | Nov 4, 2011 | Nov 4, 2011 | Linn Operating, Inc. | Bivins #A 22H | 3,800 | 37531770 |
| 724797 | Sep 29, 2011 | Sep 29, 2011 | Bravo Natural Gas, LLC | Rockwell #2102HH | 2,750 | 37531786 |
| 723677 | Sep 12, 2011 | Sep 12, 2011 | Blake Production Company, Inc. | Baca #3024 | 4,000 | 37531785 |
| 722935 | Aug 31, 2011 | Aug 31, 2011 | Adams Affiliates, Inc. | Bivins 'S' #3411 | 2,500 | 37531783 |
| 722940 | Aug 26, 2011 | Aug 26, 2011 | Adams Affiliates, Inc. | Bivins "S" #3410 | 2,500 | 37531784 |
| 719517 | Jul 5, 2011 | Jul 5, 2011 | Beren Corporation | Masterson Estate #75 | 2,450 | 37531782 |
| 714924 | Apr 28, 2011 | Apr 28, 2011 | Blake Production Company, Inc. | Baca #2024 | 4,000 | 37531781 |
| 713224 | Apr 4, 2011 | Apr 4, 2011 | Laddex, Ltd. | Martian #212 | 5,000 | 37531780 |
| 713152 | Apr 1, 2011 | Apr 1, 2011 | Laddex, Ltd. | Cruz Creek #105 | 5,000 | 37531779 |
| 711085 | Mar 1, 2011 | Mar 1, 2011 | Pioneer Natural Res. USA, Inc. | R B Masterson D #1 | 3,800 | 37531777 |
| 711077 | Mar 1, 2011 | Mar 1, 2011 | Pioneer Natural Res. USA, Inc. | R B Masterson C #1 | 3,800 | 37531776 |
| 711009 | Mar 1, 2011 | Mar 1, 2011 | Pioneer Natural Res. USA, Inc. | R B Masterson B #1 | 3,800 | 37531775 |
| 711008 | Mar 1, 2011 | Mar 1, 2011 | Pioneer Natural Res. USA, Inc. | R B Masterson A #2 | 3,800 | 37531778 |
| 711006 | Mar 1, 2011 | Mar 1, 2011 | Pioneer Natural Res. USA, Inc. | R B Masterson A #1 | 3,800 | 37531774 |
| 705811 | Dec 2, 2010 | Dec 2, 2010 | Blake Production Company, Inc. | Baca #1024 | 3,950 | 37531773 |
| 705811Amendment | Dec 2, 2010 | Dec 2, 2010 | Blake Production Company, Inc. | Baca #1024 | 3,950 | 37531773 |
| 702463 | Sep 22, 2010 | Sep 22, 2010 | Pioneer Natural Res. USA, Inc. | Bivins #A253 | 3,800 | 37531752 |
| 700088 | Aug 9, 2010 | Aug 9, 2010 | Linn Operating, Inc. | Bivins #A 22H | 3,800 | 37531770 |
| 700087 | Aug 9, 2010 | Aug 9, 2010 | Linn Operating, Inc. | Bivins #A 21H | 3,800 | 37531772 |
| 700086 | Aug 9, 2010 | Aug 9, 2010 | Linn Operating, Inc. | Bivins #A 20H | 3,800 | 37531771 |
| 699072 | Jul 16, 2010 | Jul 16, 2010 | Wheeler Energy, LLC | Singer Bros. 156 #1 | 8,500 | 37531769 |
| 697802 | Jun 21, 2010 | Jun 21, 2010 | Laddex, Ltd. | Martian #112 | 5,000 | 37531768 |
| 696688 | Jun 1, 2010 | Jun 1, 2010 | Gunn Oil Company | Bivins SC #1901 | 9,500 | 37531767 |
| 694052 | Apr 15, 2010 | Apr 15, 2010 | Pioneer Natural Res. USA, Inc. | Masterson #181R | 3,490 | 37531766 |
| 694052Amendment | Apr 15, 2010 | Apr 15, 2010 | Pioneer Natural Res. USA, Inc. | Masterson #181R | 3,490 | 37531766 |
| 693802 | Apr 8, 2010 | Apr 8, 2010 | Pioneer Natural Res. USA, Inc. | Bivins #144R | 2,500 | 37531765 |
| 693497 | Apr 2, 2010 | Apr 2, 2010 | Pioneer Natural Res. USA, Inc. | Masterson #180R | 2,500 | 37531762 |
| 693510 | Apr 1, 2010 | Apr 1, 2010 | Pioneer Natural Res. USA, Inc. | Bivins #143R | 2,500 | 37531764 |
| 693506 | Apr 1, 2010 | Apr 1, 2010 | Pioneer Natural Res. USA, Inc. | Bivins #142R | 2,500 | 37531763 |
| 693486 | Apr 1, 2010 | Apr 1, 2010 | Pioneer Natural Res. USA, Inc. | Masterson #801R | 3,700 | 37531761 |
| 693486Amendment | Apr 1, 2010 | Apr 1, 2010 | Pioneer Natural Res. USA, Inc. | Masterson #801R | 3,700 | 37531761 |
| 688466 | Mar 9, 2010 | Mar 9, 2010 | Adams Affiliates, Inc. | Bivins #2877 | 2,300 | 37531791 |
| 688463 | Mar 9, 2010 | Mar 9, 2010 | Adams Affiliates, Inc. | Bivins #2882 | 2,300 | 37531790 |
| 688462 | Feb 17, 2010 | Feb 17, 2010 | Adams Affiliates, Inc. | Bivins #2883 | 2,300 | 37531759 |
| 688461 | Feb 17, 2010 | Feb 17, 2010 | Adams Affiliates, Inc. | Bivins #2884 | 2,300 | 37531760 |
| 688459 | Dec 22, 2009 | Dec 22, 2009 | Adams Affiliates, Inc. | Bivins "S" #3326 | 2,300 | 37531756 |
| 688459Amendment | Dec 22, 2009 | Dec 22, 2009 | Adams Affiliates, Inc. | Bivins 'S' #3326 | 2,300 | 37531756 |
| 686600 | Nov 20, 2009 | Nov 20, 2009 | Blake Production Company, Inc. | The Strip #1 | 4,000 | 37530964 |
| 687511 | Nov 18, 2009 | Nov 18, 2009 | Linn Operating, Inc. | Summers #3H | 3,400 | 37531755 |
| 684803 | Sep 17, 2009 | Sep 17, 2009 | Linn Operating, Inc. | Bivins #B 1H | 3,400 | 37500231 |
| 671200 | Oct 1, 2008 | Oct 1, 2008 | B & B Operating, L.P. | Baca 23 #1 | 6,200 | 37531754 |
| 669608 | Sep 17, 2008 | Sep 17, 2008 | Pioneer Natural Res. USA, Inc. | Bivins #A250 | 3,800 | 37531750 |
| 669606 | Sep 11, 2008 | Sep 11, 2008 | Pioneer Natural Res. USA, Inc. | Bivins #A253 | 3,800 | 37531752 |
| 669610 | Sep 10, 2008 | Sep 10, 2008 | Pioneer Natural Res. USA, Inc. | Bivins #A252 | 3,800 | 37531751 |
| 669587 | Sep 10, 2008 | Sep 10, 2008 | Pioneer Natural Res. USA, Inc. | Bivins #A249 | 3,800 | 37531749 |
| 648507 | Oct 31, 2007 | Oct 31, 2007 | Pioneer Natural Res. USA, Inc. | Masterson #143 | 340 | 37531748 |
| 643108 | Aug 2, 2007 | Aug 2, 2007 | Questar Expl. and Prod. Co. | Bivins Ranch Penn Unit #1102 | 6,000 | 37531747 |
| 643049 | Aug 2, 2007 | Aug 2, 2007 | Questar Expl. and Prod. Co. | Bivins Ranch Penn Unit #1603 | 6,000 | 37531746 |
| 643013 | Aug 1, 2007 | Aug 1, 2007 | Questar Expl. and Prod. Co. | Bivins Ranch #1202 | 6,000 | 37531745 |
| 640572 | Jun 27, 2007 | Jun 27, 2007 | Pogo Panhandle 2004, L.P. | Bivins D #5 | 2,900 | 37500188 |
| 636300 | Apr 18, 2007 | Apr 18, 2007 | Stallion Energy LLC | Bivins #A 7H | 2,950 | 37500229 |
| 629799 | Dec 1, 2006 | Dec 1, 2006 | Pioneer Natural Res. USA, Inc. | Bivins #A251H | 3,800 | 37531736 |
| 629784 | Dec 1, 2006 | Dec 1, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #179R | 2,500 | 37531744 |
| 628289 | Nov 1, 2006 | Nov 1, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #175R | 2,800 | 37531743 |
| 628286 | Oct 31, 2006 | Oct 31, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #170R | 2,500 | 37531742 |
| 628284 | Oct 31, 2006 | Oct 31, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #172R | 2,500 | 37531741 |
| 627866 | Oct 23, 2006 | Oct 23, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #173R | 2,500 | 37531740 |
| 627868 | Oct 20, 2006 | Oct 20, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #178R | 2,500 | 37531739 |
| 627864 | Oct 20, 2006 | Oct 20, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #176R | 2,500 | 37531738 |
| 627596 | Oct 16, 2006 | Oct 16, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #B143H | 3,400 | 37531726 |
| 627340 | Oct 11, 2006 | Oct 11, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #10R | 2,400 | 37500365 |
| 627337 | Oct 11, 2006 | Oct 11, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #9R | 2,400 | 37500276 |
| 627335 | Oct 11, 2006 | Oct 11, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #B 85R | 2,400 | 37500382 |
| 627297 | Oct 10, 2006 | Oct 10, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #B 34R | 2,800 | 37500118 |
| 627280 | Oct 10, 2006 | Oct 10, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #41R | 2,500 | 37530036 |
| 627264 | Oct 10, 2006 | Oct 10, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #21R | 2,400 | 37500378 |
| 626274 | Sep 28, 2006 | Sep 28, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #B139H | 3,800 | 37531714 |
| 626264 | Sep 20, 2006 | Sep 20, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #B141H | 3,800 | 37531715 |
| 626264Amendment | Sep 20, 2006 | Sep 20, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #B141H | 3,800 | 37531715 |
| 626244 | Sep 20, 2006 | Sep 20, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #112R | 2,500 | 37531521 |
| 626206 | Sep 19, 2006 | Sep 19, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #39R | 2,500 | 37530029 |
| 626174 | Sep 19, 2006 | Sep 19, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #B 64R | 3,000 | 37500332 |
| 626165 | Sep 19, 2006 | Sep 19, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #B 55R | 2,500 | 37500172 |
| 626155 | Sep 19, 2006 | Sep 19, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #81R | 2,700 | 37530167 |
| 626154 | Sep 19, 2006 | Sep 19, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #23R | 2,700 | 37520048 |
| 626147 | Sep 19, 2006 | Sep 19, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #30R | 2,700 | 37520023 |
| 626131 | Sep 19, 2006 | Sep 19, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #34R | 2,700 | 37530010 |
| 626122 | Sep 19, 2006 | Sep 19, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #57R | 2,700 | 37530074 |
| 626111 | Sep 18, 2006 | Sep 18, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #35R | 2,700 | 37530009 |
| 626087 | Sep 18, 2006 | Sep 18, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #37R | 2,700 | 37530028 |
| 625972 | Sep 15, 2006 | Sep 15, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #63R | 2,700 | 37530126 |
| 625674 | Sep 14, 2006 | Sep 14, 2006 | Pioneer Natural Res. USA, Inc. | Masterson #59 | 300 | 37531737 |