| 702824 | Sep 29, 2010 | Sep 29, 2010 | Anadarko E&P Company LP | Briscoe Chip East Ranch #2HH | 8,900 | 12733772 |
| 702792 | Sep 29, 2010 | Sep 29, 2010 | Anadarko E&P Company LP | Briscoe Chip East Ranch #1HH | 8,900 | 12733768 |
| 702789 | Sep 28, 2010 | Sep 28, 2010 | Anadarko E&P Company LP | Briscoe Catarina South #6HH | 8,600 | 12733771 |
| 702788 | Sep 28, 2010 | Sep 28, 2010 | Anadarko E&P Company LP | Briscoe Catarina South #5HH | 8,600 | 12733770 |
| 702786 | Sep 28, 2010 | Sep 28, 2010 | Anadarko E&P Company LP | Briscoe Catarina South #4HH | 8,600 | 12733769 |
| 702747 | Sep 28, 2010 | Sep 28, 2010 | Newfield Exploration Company | Briscoe-McKnight #5972HH | 6,600 | 12733767 |
| 702525 | Sep 24, 2010 | Sep 24, 2010 | Shell Western E&P | Piloncillo #A 2HH | 7,850 | 12733766 |
| 702525Amendment | Sep 24, 2010 | Sep 24, 2010 | Shell Western E&P | Piloncillo #A 2HH | 15,000 | 12733766 |
| 702467 | Sep 23, 2010 | Sep 23, 2010 | Chesapeake Operating, Inc. | John Strait #1HH | 9,000 | 12733765 |
| 702402 | Sep 22, 2010 | Sep 22, 2010 | Chesapeake Operating, Inc. | Thalmann #1HH | 12,000 | 12733764 |
| 702270 | Sep 20, 2010 | Sep 20, 2010 | Anadarko E&P Company LP | Briscoe Catarina West #14HH | 8,500 | 12733763 |
| 702269 | Sep 20, 2010 | Sep 20, 2010 | Anadarko E&P Company LP | Briscoe Catarina West #13HH | 8,500 | 12733762 |
| 701786 | Sep 20, 2010 | Sep 20, 2010 | Sabco Operating Company | Elaine Field /San Miguel/ Unit #82 | 7,006 | 12731119 |
| 702245 | Sep 17, 2010 | Sep 17, 2010 | Anadarko E&P Company LP | Beinhorn Ranch #6HH | 9,100 | 12733761 |
| 702245Amendment | Sep 17, 2010 | Sep 17, 2010 | Anadarko E&P Company LP | Beinhorn Ranch #6HH | 8,100 | 12733761 |
| 702242 | Sep 17, 2010 | Sep 17, 2010 | Anadarko E&P Company LP | Beinhorn Ranch #5HH | 8,900 | 12733760 |
| 702075 | Sep 14, 2010 | Sep 14, 2010 | Anadarko E&P Company LP | Briscoe Cochina West Ranch #11HH | 8,800 | 12733759 |
| 701931 | Sep 10, 2010 | Sep 10, 2010 | Newfield Exploration Company | Pritchett #3702HH | 6,400 | 12733758 |
| 701918 | Sep 10, 2010 | Sep 10, 2010 | Anadarko E&P Company LP | Briscoe Friday Ranch #9HH | 9,200 | 12733757 |
| 701918Amendment | Sep 10, 2010 | Sep 10, 2010 | Anadarko E&P Company LP | Briscoe Friday Ranch #9HH | 9,200 | 12733757 |
| 701915 | Sep 10, 2010 | Sep 10, 2010 | Anadarko E&P Company LP | Briscoe Friday Ranch #8HH | 9,200 | 12733756 |
| 701915Amendment | Sep 10, 2010 | Sep 10, 2010 | Anadarko E&P Company LP | Briscoe Friday Ranch #8HH | 9,200 | 12733756 |
| 701909 | Sep 10, 2010 | Sep 10, 2010 | Anadarko E&P Company LP | Briscoe Friday Ranch #7HH | 9,200 | 12733755 |
| 701909Amendment | Sep 10, 2010 | Sep 10, 2010 | Anadarko E&P Company LP | Briscoe Friday Ranch #7HH | 9,200 | 12733755 |
| 701837 | Sep 9, 2010 | Sep 9, 2010 | Anadarko E&P Company LP | Briscoe Catarina West #12HH | 8,500 | 12733753 |
| 701787 | Sep 8, 2010 | Sep 8, 2010 | CML Exploration, LLC | Thalmann #1H | 6,500 | 12733751 |
| 701787Amendment | Sep 8, 2010 | Sep 8, 2010 | CML Exploration, LLC | Thalmann #1H | 6,500 | 12733751 |
| 701702 | Sep 8, 2010 | Sep 8, 2010 | Shell Western E&P | Piloncillo #A 1HH | 8,200 | 12733752 |
| 701702Amendment | Sep 8, 2010 | Sep 8, 2010 | Shell Western E&P | Piloncillo #A 1HH | 15,000 | 12733752 |
| 700668 | Sep 8, 2010 | Sep 8, 2010 | Hamilton, J. R. | Hamilton Fee (Jredranch) #1G | 10,000 | 12733754 |
| 701654 | Sep 7, 2010 | Sep 7, 2010 | Anadarko E&P Company LP | Boyd, G. G. #1HH | 8,400 | 12733750 |
| 701564 | Sep 3, 2010 | Sep 3, 2010 | Anadarko E&P Company LP | Briscoe Catarina Ranch #6HH | 8,500 | 12733749 |
| 701453 | Sep 1, 2010 | Sep 1, 2010 | Chesapeake Operating, Inc. | Circle T #1HH | 9,000 | 12733748 |
| 701478 | Aug 31, 2010 | Aug 31, 2010 | CML Exploration, LLC | Tebo #1H | 5,000 | 12733747 |
| 701478Amendment | Aug 31, 2010 | Aug 31, 2010 | CML Exploration, LLC | Tebo #1H | 5,000 | 12733747 |
| 701275 | Aug 31, 2010 | Aug 31, 2010 | Chesapeake Operating, Inc. | Betty Wilson #1HH | 12,000 | 12733746 |
| 701288 | Aug 30, 2010 | Aug 30, 2010 | Murphy Exploration & Prod. Co. | Briggs #3HH | 7,970 | 12733745 |
| 701288Amendment | Aug 30, 2010 | Aug 30, 2010 | Murphy Expl. & Prod. Co. - USA | Briggs #3HH | 8,200 | 12733745 |
| 699515 | Aug 30, 2010 | Aug 30, 2010 | Sabco Operating Company | Elaine Field /San Miguel/ Unit #98 | 5,500 | 12733742 |
| 699549 | Aug 25, 2010 | Aug 25, 2010 | Sabco Operating Company | Elaine Field /San Miguel/ Unit #99 | 5,500 | 12733744 |
| 699514 | Aug 25, 2010 | Aug 25, 2010 | Sabco Operating Company | Elaine Field /San Miguel/ Unit #97 | 5,500 | 12733741 |
| 700772 | Aug 20, 2010 | Aug 20, 2010 | Texas American Resources Company | Standifer Unit #1HH | 7,060 | 12733743 |
| 700791 | Aug 18, 2010 | Aug 18, 2010 | Anadarko E&P Company LP | La Bandera Ranch #4HH | 7,000 | 12733740 |
| 700747 | Aug 17, 2010 | Aug 17, 2010 | Killam Oil Co., Ltd. | Dimmit S-4 #1HH | 7,000 | 12733739 |
| 700302 | Aug 12, 2010 | Aug 12, 2010 | Murphy Exploration & Prod. Co. | Briggs #2HH | 8,135 | 12733730 |
| 700302Amendment | Aug 12, 2010 | Aug 12, 2010 | Murphy Expl. & Prod. Co. - USA | Briggs #2HH | 8,135 | 12733730 |
| 700486 | Aug 11, 2010 | Aug 11, 2010 | Chesapeake Operating, Inc. | Luffel #1HH | 16,000 | 12733738 |
| 700481 | Aug 11, 2010 | Aug 11, 2010 | Chesapeake Operating, Inc. | Hatch #1HH | 11,450 | 12733613 |
| 700481Amendment | Aug 11, 2010 | Aug 11, 2010 | Chesapeake Operating, Inc. | Hatch #1HH | 11,450 | 12733613 |
| 700422 | Aug 10, 2010 | Aug 10, 2010 | Newfield Exploration Company | Comanche 660 #1HH | 6,000 | 12733737 |
| 700416 | Aug 10, 2010 | Aug 10, 2010 | Anadarko E&P Company LP | Briscoe Carla Ranch #12HH | 8,500 | 12733736 |
| 700407 | Aug 10, 2010 | Aug 10, 2010 | Anadarko E&P Company LP | Briscoe Carla Ranch #11HH | 8,500 | 12733735 |
| 700399 | Aug 10, 2010 | Aug 10, 2010 | Chesapeake Operating, Inc. | Luffel Ranch #1HH | 12,000 | 12733734 |
| 700382 | Aug 10, 2010 | Aug 10, 2010 | Anadarko E&P Company LP | Briscoe Carla Ranch #10HH | 8,500 | 12733733 |
| 700363 | Aug 9, 2010 | Aug 9, 2010 | Chesapeake Operating, Inc. | Pena Creek III Unit B #4HH | 15,000 | 12733732 |
| 700363Amendment | Aug 9, 2010 | Aug 9, 2010 | Chesapeake Operating, Inc. | Pena Creek III Unit B #4HH | 15,000 | 12733732 |
| 699968 | Aug 6, 2010 | Aug 6, 2010 | Newfield Exploration Company | Moro Creek #1 | 12,500 | 12733731 |
| 699596 | Jul 28, 2010 | Jul 28, 2010 | Anadarko E&P Company LP | Rancho Encantado #1HH | 9,500 | 12733729 |
| 699562 | Jul 27, 2010 | Jul 27, 2010 | Chesapeake Operating, Inc. | Jbgs Unit #1HH | 9,000 | 12733728 |
| 699243 | Jul 27, 2010 | Jul 27, 2010 | Anadarko E&P Company LP | Stumberg Ranch #3HH | 9,000 | 12733725 |
| 699539 | Jul 26, 2010 | Jul 26, 2010 | CML Exploration, LLC | Trotter #1H | 6,900 | 12733726 |
| 699539Amendment | Jul 26, 2010 | Jul 26, 2010 | CML Exploration, LLC | Trotter #1H | 6,900 | 12733726 |
| 699462 | Jul 26, 2010 | Jul 26, 2010 | Anadarko E&P Company LP | Briscoe Catarina Ranch #8HH | 8,500 | 12733724 |
| 699460 | Jul 26, 2010 | Jul 26, 2010 | Anadarko E&P Company LP | Briscoe Catarina Ranch #7HH | 8,500 | 12733723 |
| 699435 | Jul 26, 2010 | Jul 26, 2010 | CML Exploration, LLC | Gil #1H | 6,900 | 12733727 |
| 699435Amendment | Jul 26, 2010 | Jul 26, 2010 | CML Exploration, LLC | Gil #1H | 6,900 | 12733727 |
| 699339 | Jul 22, 2010 | Jul 22, 2010 | Anadarko E&P Company LP | Briscoe Friday Ranch #6HH | 9,500 | 12733722 |
| 699339Amendment | Jul 22, 2010 | Jul 22, 2010 | Anadarko E&P Company LP | Briscoe Friday Ranch #6HH | 8,295 | 12733722 |
| 699338 | Jul 22, 2010 | Jul 22, 2010 | Anadarko E&P Company LP | Briscoe Friday Ranch #5HH | 9,500 | 12733721 |
| 699338Amendment | Jul 22, 2010 | Jul 22, 2010 | Anadarko E&P Company LP | Briscoe Friday Ranch #5HH | 8,285 | 12733721 |
| 699335 | Jul 22, 2010 | Jul 22, 2010 | Anadarko E&P Company LP | Briscoe Friday Ranch #4HH | 9,500 | 12733720 |
| 699245 | Jul 21, 2010 | Jul 21, 2010 | Anadarko E&P Company LP | Stumberg Ranch #4HH | 8,000 | 12733718 |
| 699231 | Jul 21, 2010 | Jul 21, 2010 | Anadarko E&P Company LP | Stumberg Ranch #2HH | 9,000 | 12733719 |
| 699220 | Jul 21, 2010 | Jul 21, 2010 | Anadarko E&P Company LP | Stumberg Ranch #1HH | 9,000 | 12733717 |
| 698968 | Jul 15, 2010 | Jul 15, 2010 | Chesapeake Operating, Inc. | Pena Creek I #4HH | 9,000 | 12733715 |
| 698788 | Jul 14, 2010 | Jul 14, 2010 | Chesapeake Operating, Inc. | Pena Creek 1 #6HH | 12,000 | 12733716 |
| 698532 | Jul 6, 2010 | Jul 6, 2010 | Chesapeake Operating, Inc. | Pena Creek III Unit A #5HH | 9,000 | 12733714 |
| 698079 | Jun 25, 2010 | Jun 25, 2010 | Lewis Petro Properties, Inc. | Cotulla #2HH | 16,500 | 12733713 |
| 697975 | Jun 24, 2010 | Jun 24, 2010 | Newfield Exploration Company | Cmww a 42 #1HH | 8,000 | 12733712 |
| 697783 | Jun 18, 2010 | Jun 18, 2010 | Redemption Oil & Gas, LLC | Pritchett #371HH | 6,000 | 12733710 |
| 697783Amendment | Jun 18, 2010 | Jun 18, 2010 | Redemption Oil & Gas, LLC | Pritchett #371HH | 6,000 | 12733710 |
| 697679 | Jun 18, 2010 | Jun 18, 2010 | L & J Exploration, LLC | Bowman #107 | 4,000 | 12733711 |
| 697679Amendment | Jun 18, 2010 | Jun 18, 2010 | L & J Exploration, LLC | Bowman #107 | 4,200 | 12733711 |
| 697679Amendment | Jun 18, 2010 | Jun 18, 2010 | L & J Exploration, LLC | Bowman #107 | 4,200 | 12733711 |
| 697665 | Jun 18, 2010 | Jun 18, 2010 | Anadarko E&P Company LP | Briscoe Friday Ranch #3HH | 9,000 | 12733709 |
| 697661 | Jun 17, 2010 | Jun 17, 2010 | Anadarko E&P Company LP | Briscoe Friday Ranch #2HH | 9,000 | 12733708 |
| 697544 | Jun 15, 2010 | Jun 15, 2010 | Rosetta Resources Operating LP | Light Ranch #1H | 15,650 | 12733707 |
| 697544Amendment | Jun 15, 2010 | Jun 15, 2010 | Rosetta Resources Operating LP | Light Ranch #1H | 15,650 | 12733707 |
| 697368 | Jun 11, 2010 | Jun 11, 2010 | Anadarko E&P Company LP | Briscoe Carla Ranch #4HH | 8,000 | 12733706 |
| 697366 | Jun 10, 2010 | Jun 10, 2010 | Anadarko E&P Company LP | Briscoe Carla Ranch #3HH | 8,000 | 12733705 |
| 697366Amendment | Jun 10, 2010 | Jun 10, 2010 | Anadarko E&P Company LP | Briscoe Carla Ranch #3HH | 8,000 | 12733705 |
| 697334 | Jun 10, 2010 | Jun 10, 2010 | Encana Oil & Gas(usa) Inc. | Shook #81HH | 10,500 | 12733704 |
| 697098 | Jun 9, 2010 | Jun 9, 2010 | Newfield Exploration Company | Cmww B 36 #1HH | 7,700 | 12733703 |
| 696916 | Jun 3, 2010 | Jun 3, 2010 | Chesapeake Operating, Inc. | Pena Creek III #1HH | 9,000 | 12733702 |
| 696916Amendment | Jun 3, 2010 | Jun 3, 2010 | Chesapeake Operating, Inc. | Pena Creek III #1HH | 9,000 | 12733702 |
| 696889 | Jun 2, 2010 | Jun 2, 2010 | Chesapeake Operating, Inc. | Pena Creek I #1HH | 15,000 | 12733701 |
| 696889Amendment | Jun 2, 2010 | Jun 2, 2010 | Chesapeake Operating, Inc. | Pena Creek I #1HH | 15,000 | 12733701 |
| 696889Amendment | Jun 2, 2010 | Jun 2, 2010 | Chesapeake Operating, Inc. | Pena Creek I #1HH | 15,000 | 12733701 |
| 696854 | Jun 2, 2010 | Jun 2, 2010 | Anadarko E&P Company LP | Briscoe Cochina West Ranch #4HH | 8,000 | 12733700 |
| 696848 | Jun 2, 2010 | Jun 2, 2010 | Anadarko E&P Company LP | Briscoe Cochina West Ranch #3HH | 8,000 | 12733699 |