| 732193 | Feb 7, 2012 | Feb 7, 2012 | Chesapeake Operating, Inc. | Faith Rincon Web #A 2HH | 9,000 | 47941712 |
| 731939 | Feb 7, 2012 | Feb 7, 2012 | Columbus Energy, LLC | Hachar, D.D. #57QC | 2,000 | 47941711 |
| 732535 | Feb 6, 2012 | Feb 6, 2012 | Lewis Petro Properties, Inc. | San Roman 1508 #9HH | 12,500 | 47941709 |
| 732462 | Feb 6, 2012 | Feb 6, 2012 | Lewis Petro Properties, Inc. | Dammier State #1HH | 17,000 | 47941707 |
| 732354 | Feb 2, 2012 | Feb 2, 2012 | Mohican Operating, L.L.C. | Bhe #12 | 9,850 | 47941704 |
| 732337 | Feb 2, 2012 | Feb 2, 2012 | Lewis Petro Properties, Inc. | J. J. Trevino #3HH | 12,500 | 47941703 |
| 732329 | Feb 2, 2012 | Feb 2, 2012 | Lewis Petro Properties, Inc. | Briscoe-Manry 1469 #27HH | 12,500 | 47941702 |
| 732315 | Feb 2, 2012 | Feb 2, 2012 | Shell Western E&P | Piloncillo #D 15HDH | 18,000 | 47941701 |
| 732313 | Feb 2, 2012 | Feb 2, 2012 | Shell Western E&P | Piloncillo #D 15HCH | 18,000 | 47941700 |
| 732310 | Feb 2, 2012 | Feb 2, 2012 | Shell Western E&P | Piloncillo #D 15HBH | 18,000 | 47941699 |
| 732309 | Feb 2, 2012 | Feb 2, 2012 | Shell Western E&P | Piloncillo #D 15HAH | 18,000 | 47941698 |
| 732303 | Feb 1, 2012 | Feb 1, 2012 | Killam Oil Co., Ltd. | Killam & Hurd Fee Porcion 26 #4 | 8,800 | 47941697 |
| 732236 | Jan 31, 2012 | Jan 31, 2012 | Anadarko E&P Company LP | Stanley Ranch #56HH | 8,120 | 47941695 |
| 732236Amendment | Jan 31, 2012 | Jan 31, 2012 | Anadarko E&P Onshore LLC | Stanley Ranch #56HH | 9,900 | 47941695 |
| 732219 | Jan 31, 2012 | Jan 31, 2012 | Anadarko E&P Company LP | Stanley Ranch #54HH | 8,120 | 47941696 |
| 732219Amendment | Jan 31, 2012 | Jan 31, 2012 | Anadarko E&P Onshore LLC | Stanley Ranch #54HH | 9,900 | 47941696 |
| 732026 | Jan 31, 2012 | Jan 31, 2012 | Rosetta Resources Operating LP | Gates 05D #4011H | 8,500 | 47941694 |
| 732221 | Jan 30, 2012 | Jan 30, 2012 | Anadarko E&P Company LP | Stanley Ranch #55HH | 8,120 | 47941693 |
| 732221Amendment | Jan 30, 2012 | Jan 30, 2012 | Anadarko E&P Onshore LLC | Stanley Ranch #55HH | 9,700 | 47941693 |
| 732039 | Jan 30, 2012 | Jan 30, 2012 | Rosetta Resources Operating LP | Gates 05D #5011H | 8,500 | 47941690 |
| 732023 | Jan 30, 2012 | Jan 30, 2012 | Rosetta Resources Operating LP | Gates 05D #3011H | 8,500 | 47941691 |
| 731656 | Jan 30, 2012 | Jan 30, 2012 | Chesapeake Operating, Inc. | Faith Rincon Web #A 1HH | 9,000 | 47941692 |
| 732148 | Jan 27, 2012 | Jan 27, 2012 | Killam Oil Co., Ltd. | Pescadito State 2024 #4 | 10,000 | 47941689 |
| 732079 | Jan 27, 2012 | Jan 27, 2012 | EOG Resources, Inc. | Billings-State #1 | 12,200 | 47941686 |
| 731806 | Jan 27, 2012 | Jan 27, 2012 | Shell Western E&P | Piloncillo #D 13HCH | 18,000 | 47941688 |
| 731805 | Jan 27, 2012 | Jan 27, 2012 | Shell Western E&P | Piloncillo #D 13HBH | 18,000 | 47941687 |
| 731920 | Jan 26, 2012 | Jan 26, 2012 | Laredo Energy | G.B. Minerals #1HH | 13,000 | 47940827 |
| 731902 | Jan 25, 2012 | Jan 25, 2012 | Anadarko E&P Company LP | Stanley Ranch #59HH | 8,155 | 47941685 |
| 731902Amendment | Jan 25, 2012 | Jan 25, 2012 | Anadarko E&P Onshore LLC | Stanley Ranch #59HH | 9,700 | 47941685 |
| 731876 | Jan 25, 2012 | Jan 25, 2012 | Anadarko E&P Company LP | Stanley Ranch #58HH | 8,155 | 47941684 |
| 731876Amendment | Jan 25, 2012 | Jan 25, 2012 | Anadarko E&P Onshore LLC | Stanley Ranch #58HH | 9,900 | 47941684 |
| 731865 | Jan 25, 2012 | Jan 25, 2012 | Anadarko E&P Company LP | Stanley Ranch #57HH | 8,155 | 47941683 |
| 731865Amendment | Jan 25, 2012 | Jan 25, 2012 | Anadarko E&P Onshore LLC | Stanley Ranch #57HH | 9,700 | 47941683 |
| 731804 | Jan 25, 2012 | Jan 25, 2012 | Shell Western E&P | Piloncillo #D 13HAH | 18,000 | 47941682 |
| 731751 | Jan 24, 2012 | Jan 24, 2012 | Shell Western E&P | Piloncillo #D 21HDH | 18,000 | 47941681 |
| 731749 | Jan 24, 2012 | Jan 24, 2012 | Shell Western E&P | Piloncillo #D 21HCH | 18,000 | 47941680 |
| 731749Amendment | Jan 24, 2012 | Jan 24, 2012 | Shell Western E&P | Piloncillo #D 21HCH | 18,000 | 47941680 |
| 731748 | Jan 24, 2012 | Jan 24, 2012 | Shell Western E&P | Piloncillo #D 21HBH | 18,000 | 47941679 |
| 731748Amendment | Jan 24, 2012 | Jan 24, 2012 | Shell Western E&P | Piloncillo #D 21HBH | 18,000 | 47941679 |
| 731747 | Jan 24, 2012 | Jan 24, 2012 | Shell Western E&P | Piloncillo #D 21HAH | 18,000 | 47941678 |
| 731636 | Jan 24, 2012 | Jan 24, 2012 | SM Energy Company | Briscoe G GU8 State #22HH | 10,000 | 47941677 |
| 731628 | Jan 24, 2012 | Jan 24, 2012 | Shell Western E&P | Piloncillo #D 14HYH | 18,000 | 47941676 |
| 731614 | Jan 24, 2012 | Jan 24, 2012 | SM Energy Company | Briscoe G GU7 State #21HH | 10,000 | 47941670 |
| 731602 | Jan 23, 2012 | Jan 23, 2012 | SM Energy Company | Briscoe G GU7 State #20HH | 10,000 | 47941671 |
| 731629 | Jan 21, 2012 | Jan 21, 2012 | Shell Western E&P | Piloncillo #D 14HZH | 18,000 | 47941666 |
| 731627 | Jan 21, 2012 | Jan 21, 2012 | Shell Western E&P | Piloncillo #D 14HXH | 18,000 | 47941675 |
| 731626 | Jan 21, 2012 | Jan 21, 2012 | Shell Western E&P | Piloncillo #D 14HWH | 18,000 | 47941674 |
| 731625 | Jan 21, 2012 | Jan 21, 2012 | Shell Western E&P | Piloncillo #D 14HBH | 18,000 | 47941673 |
| 731624 | Jan 21, 2012 | Jan 21, 2012 | Shell Western E&P | Piloncillo #D 14HAH | 18,000 | 47941672 |
| 731581 | Jan 21, 2012 | Jan 21, 2012 | Rosetta Resources Operating LP | Gates 05D #2011H | 8,500 | 47941668 |
| 731580 | Jan 21, 2012 | Jan 21, 2012 | Rosetta Resources Operating LP | Gates 05D #1011H | 8,500 | 47941667 |
| 731580Amendment | Jan 21, 2012 | Jan 21, 2012 | Rosetta Resources Operating LP | Gates 05D #111H | 8,500 | 47941667 |
| 731578 | Jan 21, 2012 | Jan 21, 2012 | Rosetta Resources Operating LP | Gates 05D #7012AH | 8,500 | 47941669 |
| 731473 | Jan 19, 2012 | Jan 19, 2012 | Lewis Petro Properties, Inc. | San Roman 1507 #8HH | 17,000 | 47941665 |
| 731473Amendment | Jan 19, 2012 | Jan 19, 2012 | Lewis Petro Properties, Inc. | San Roman 1507 #8HH | 17,000 | 47941665 |
| 731470 | Jan 19, 2012 | Jan 19, 2012 | Lewis Petro Properties, Inc. | Gates 07-Dr #25HH | 17,000 | 47941664 |
| 731470Amendment | Jan 19, 2012 | Jan 19, 2012 | Lewis Petro Properties, Inc. | Gates 07-Dr #25HH | 17,000 | 47941664 |
| 731391 | Jan 18, 2012 | Jan 18, 2012 | Anadarko E&P Company LP | Stanley Ranch #62HH | 8,145 | 47941663 |
| 731391Amendment | Jan 18, 2012 | Jan 18, 2012 | Anadarko E&P Onshore LLC | Stanley Ranch #62HH | 9,900 | 47941663 |
| 731387 | Jan 18, 2012 | Jan 18, 2012 | Anadarko E&P Company LP | Stanley Ranch #61HH | 8,145 | 47941661 |
| 731387Amendment | Jan 18, 2012 | Jan 18, 2012 | Anadarko E&P Onshore LLC | Stanley Ranch #61HH | 9,700 | 47941661 |
| 731386 | Jan 18, 2012 | Jan 18, 2012 | SM Energy Company | Watson State #4HH | 12,000 | 47941662 |
| 731386Amendment | Jan 18, 2012 | Jan 18, 2012 | SM Energy Company | Watson State #4HH | 12,000 | 47941662 |
| 731382 | Jan 18, 2012 | Jan 18, 2012 | Anadarko E&P Company LP | Stanley Ranch #60HH | 8,145 | 47941660 |
| 731382Amendment | Jan 18, 2012 | Jan 18, 2012 | Anadarko E&P Onshore LLC | Stanley Ranch #60HH | 9,900 | 47941660 |
| 731096 | Jan 17, 2012 | Jan 17, 2012 | Lewis Petro Properties, Inc. | Cotulla #12HH | 17,000 | 47941655 |
| 731096Amendment | Jan 17, 2012 | Jan 17, 2012 | Lewis Petro Properties, Inc. | Cotulla #12HH | 17,000 | 47941655 |
| 731264 | Jan 13, 2012 | Jan 13, 2012 | Lewis Petro Properties, Inc. | Northeast Complex #4HH | 12,500 | 47941659 |
| 731184 | Jan 13, 2012 | Jan 13, 2012 | Lewis Petro Properties, Inc. | Zamora A #4HH | 12,500 | 47941658 |
| 731161 | Jan 12, 2012 | Jan 12, 2012 | Mohican Operating, L.L.C. | Bhe #11 | 9,850 | 47941657 |
| 731138 | Jan 12, 2012 | Jan 12, 2012 | Lewis Petro Properties, Inc. | San Roman 'A' #10HH | 12,500 | 47941656 |
| 731138Amendment | Jan 12, 2012 | Jan 12, 2012 | Lewis Petro Properties, Inc. | San Roman 'A' #10HH | 9,000 | 47941656 |
| 731074 | Jan 11, 2012 | Jan 11, 2012 | Laredo Energy | Rosa V. Benavides #26HH | 9,000 | 47941654 |
| 731065 | Jan 11, 2012 | Jan 11, 2012 | Laredo Energy | Rosa V. Benavides #24HH | 6,000 | 47941653 |
| 731058 | Jan 10, 2012 | Jan 10, 2012 | Laredo Energy | Rosa V. Benavides #25HH | 10,000 | 47941652 |
| 731058Amendment | Jan 10, 2012 | Jan 10, 2012 | Laredo Energy | Rosa V. Benavides #25HH | 10,000 | 47941652 |
| 730953 | Jan 9, 2012 | Jan 9, 2012 | Laredo Energy | Rosa V. Benavides #22HH | 6,000 | 47941648 |
| 730495 | Jan 9, 2012 | Jan 9, 2012 | Laredo Energy | Benavides Family Minerals GU 3 #1HH | 8,000 | 47941640 |
| 730878 | Jan 5, 2012 | Jan 5, 2012 | Hughes, Dan A. Company, L.P. | Hachar #1HH | 13,000 | 47941647 |
| 730878Amendment | Jan 5, 2012 | Jan 5, 2012 | Hughes, Dan A. Company, L.P. | Hachar #1HH | 13,000 | 47941647 |
| 730569 | Dec 29, 2011 | Dec 29, 2011 | Shell Western E&P | Piloncillo #F 2V | 12,000 | 47941645 |
| 730569Amendment | Dec 29, 2011 | Dec 29, 2011 | Shell Western E&P | Piloncillo #F 2V | 12,000 | 47941645 |
| 730568 | Dec 29, 2011 | Dec 29, 2011 | Laredo Energy | Rosa V. Benavides #23HH | 6,000 | 47941644 |
| 729600 | Dec 29, 2011 | Dec 29, 2011 | EOG Resources, Inc. | Billings Ranch #9 | 12,000 | 47941646 |
| 730392 | Dec 28, 2011 | Dec 28, 2011 | Mohican Operating, L.L.C. | Bhe #10 | 9,000 | 47941643 |
| 729788 | Dec 28, 2011 | Dec 28, 2011 | Shell Western E&P | Piloncillo #F 2HDH | 18,000 | 47941627 |
| 730512 | Dec 27, 2011 | Dec 27, 2011 | SM Energy Company | Brask Dumont #2HH | 12,000 | 47941642 |
| 730505 | Dec 27, 2011 | Dec 27, 2011 | SM Energy Company | Galvan Ranch LP #2HH | 12,000 | 47941641 |
| 730448 | Dec 23, 2011 | Dec 23, 2011 | Laredo Energy | Rosa V. Benavides #21HH | 7,000 | 47941639 |
| 730354 | Dec 23, 2011 | Dec 23, 2011 | Fasken Oil and Ranch, Ltd. | Loma Blanca #2HH | 8,362 | 47941638 |
| 730312 | Dec 22, 2011 | Dec 22, 2011 | Lewis Petro Properties, Inc. | Gates 'O' TR2 #4 | 12,500 | 47941636 |
| 730287 | Dec 22, 2011 | Dec 22, 2011 | Laredo Energy | Reuthinger #4HH | 10,000 | 47941634 |
| 730271 | Dec 22, 2011 | Dec 22, 2011 | XTO Energy Inc. | Las Raices Ranch #22HH | 17,000 | 47941637 |
| 730269 | Dec 22, 2011 | Dec 22, 2011 | XTO Energy Inc. | Las Raices Ranch #21HH | 17,000 | 47941633 |
| 730240 | Dec 21, 2011 | Dec 21, 2011 | Conocophillips Company | Vaquillas Ranch A7 #249 | 12,150 | 47941635 |
| 729791 | Dec 21, 2011 | Dec 21, 2011 | Shell Western E&P | Piloncillo #F 2HLH | 18,000 | 47941628 |
| 730034 | Dec 20, 2011 | Dec 20, 2011 | SM Energy Company | Galvan State #2HH | 12,000 | 47941632 |
| 729787 | Dec 20, 2011 | Dec 20, 2011 | Shell Western E&P | Piloncillo #F 2HCH | 18,000 | 47941626 |
| 729785 | Dec 19, 2011 | Dec 19, 2011 | Shell Western E&P | Piloncillo #F 2HBH | 18,000 | 47941625 |
| 729783 | Dec 19, 2011 | Dec 19, 2011 | Shell Western E&P | Piloncillo #F 2HAH | 18,000 | 47941624 |