| 755881 | Feb 5, 2013 | Feb 5, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #94HH | 9,000 | 12735344 |
| 755881Amendment | Feb 5, 2013 | Feb 5, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #94HH | 9,000 | 12735344 |
| 755877 | Feb 5, 2013 | Feb 5, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #93HH | 9,000 | 12735343 |
| 755877Amendment | Feb 5, 2013 | Feb 5, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #93HH | 9,000 | 12735343 |
| 755876 | Feb 5, 2013 | Feb 5, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #92HH | 9,000 | 12735342 |
| 755876Amendment | Feb 5, 2013 | Feb 5, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #92HH | 9,000 | 12735342 |
| 755873 | Feb 5, 2013 | Feb 5, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #91HH | 9,000 | 12735341 |
| 755873Amendment | Feb 5, 2013 | Feb 5, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #91HH | 9,000 | 12735341 |
| 755870 | Feb 5, 2013 | Feb 5, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #90HH | 9,000 | 12735340 |
| 755870Amendment | Feb 5, 2013 | Feb 5, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #90HH | 9,000 | 12735340 |
| 755751 | Feb 5, 2013 | Feb 5, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #89HH | 9,000 | 12735346 |
| 755751Amendment | Feb 5, 2013 | Feb 5, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #89HH | 9,000 | 12735346 |
| 755746 | Feb 5, 2013 | Feb 5, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #88HH | 9,000 | 12735345 |
| 755746Amendment | Feb 5, 2013 | Feb 5, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #88HH | 9,000 | 12735345 |
| 755588 | Feb 5, 2013 | Feb 5, 2013 | SM Energy Company | Briscoe Catarina East #20HH | 10,000 | 12735347 |
| 755588Amendment | Feb 5, 2013 | Feb 5, 2013 | SM Energy Company | Briscoe Catarina East #20HH | 10,000 | 12735347 |
| 755586 | Feb 5, 2013 | Feb 5, 2013 | SM Energy Company | Briscoe Catarina East #19HH | 10,000 | 12735320 |
| 755583 | Feb 5, 2013 | Feb 5, 2013 | SM Energy Company | Briscoe Catarina East #18HH | 10,000 | 12735319 |
| 755851 | Feb 4, 2013 | Feb 4, 2013 | Texas International Oper., LLC | Ranger Beall Ranch #6HH | 8,200 | 12735337 |
| 755851Amendment | Feb 4, 2013 | Feb 4, 2013 | Texas International Oper., LLC | Ranger Beall Ranch #6HH | 8,200 | 12735337 |
| 755837 | Feb 4, 2013 | Feb 4, 2013 | Anadarko E&P Onshore LLC | Rancho Encantado #33HH | 7,530 | 12735336 |
| 755831 | Feb 4, 2013 | Feb 4, 2013 | Anadarko E&P Onshore LLC | Rancho Encantado #32HH | 7,530 | 12735335 |
| 755810 | Feb 4, 2013 | Feb 4, 2013 | Anadarko E&P Onshore LLC | Rancho Encantado #31HH | 7,530 | 12735334 |
| 755735 | Feb 4, 2013 | Feb 4, 2013 | Anadarko E&P Onshore LLC | Rancho Encantado #30HH | 7,530 | 12735329 |
| 755732 | Feb 4, 2013 | Feb 4, 2013 | Anadarko E&P Onshore LLC | Rancho Encantado #29HH | 7,530 | 12735328 |
| 755955 | Feb 1, 2013 | Feb 1, 2013 | Murphy Expl. & Prod. Co. - USA | Briggs #25HH | 8,059 | 12735327 |
| 755816 | Feb 1, 2013 | Feb 1, 2013 | Chesapeake Operating, Inc. | Alta Vista Unit a Dim #1HH | 9,000 | 12735333 |
| 755744 | Feb 1, 2013 | Feb 1, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #87HH | 9,000 | 12735330 |
| 755744Amendment | Feb 1, 2013 | Feb 1, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #87HH | 9,000 | 12735330 |
| 755742 | Feb 1, 2013 | Feb 1, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #86HH | 9,000 | 12735332 |
| 755742Amendment | Feb 1, 2013 | Feb 1, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #86HH | 9,000 | 12735332 |
| 755740 | Feb 1, 2013 | Feb 1, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #85HH | 9,000 | 12735331 |
| 755740Amendment | Feb 1, 2013 | Feb 1, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #85HH | 9,000 | 12735331 |
| 755799 | Jan 31, 2013 | Jan 31, 2013 | Murphy Expl. & Prod. Co. - USA | Briggs #24HH | 8,059 | 12735326 |
| 755672 | Jan 31, 2013 | Jan 31, 2013 | Sage Energy Company | Mills-Wood Unit #1HH | 7,200 | 12735321 |
| 755672Amendment | Jan 31, 2013 | Jan 31, 2013 | Sage Energy Company | Mills-Wood Unit #1HH | 7,200 | 12735321 |
| 755661 | Jan 31, 2013 | Jan 31, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina South #23HH | 8,500 | 12735325 |
| 755656 | Jan 31, 2013 | Jan 31, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina South #22HH | 8,500 | 12735324 |
| 755654 | Jan 31, 2013 | Jan 31, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina South #21HH | 8,500 | 12735323 |
| 755643 | Jan 31, 2013 | Jan 31, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina South #20HH | 8,500 | 12735322 |
| 755383 | Jan 28, 2013 | Jan 28, 2013 | EP Energy E&P Company, L.P. | Ritchie Farms #28HH | 9,600 | 12735318 |
| 755330 | Jan 28, 2013 | Jan 28, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina South #19HH | 8,800 | 12735316 |
| 755325 | Jan 28, 2013 | Jan 28, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina South #18HH | 8,800 | 12735314 |
| 755323 | Jan 28, 2013 | Jan 28, 2013 | Texas American Resources Company | Bowman 7 #1HH | 7,489 | 12735317 |
| 755321 | Jan 28, 2013 | Jan 28, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina South #17HH | 8,800 | 12735313 |
| 755319 | Jan 25, 2013 | Jan 25, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina South #16HH | 8,800 | 12735312 |
| 755284 | Jan 25, 2013 | Jan 25, 2013 | Texas American Resources Company | Bowman-Minx Unit #1HH | 7,564 | 12735315 |
| 754777 | Jan 25, 2013 | Jan 25, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #80HH | 9,000 | 12735301 |
| 755065 | Jan 24, 2013 | Jan 24, 2013 | Newfield Exploration Company | Shadd Wilcox #1 | 2,000 | 12735310 |
| 755050 | Jan 24, 2013 | Jan 24, 2013 | Chesapeake Operating, Inc. | Espantosa Lake Unit F Dim #1HH | 9,000 | 12735311 |
| 755050Amendment | Jan 24, 2013 | Jan 24, 2013 | Chesapeake Operating, Inc. | Espantosa Lake Unit F Dim #1HH | 9,000 | 12735311 |
| 754593 | Jan 24, 2013 | Jan 24, 2013 | Texas International Oper., LLC | Ranger Beall Ranch #5HH | 8,200 | 12735295 |
| 754593Amendment | Jan 24, 2013 | Jan 24, 2013 | Texas International Oper., LLC | Ranger Beall Ranch #5HH | 8,200 | 12735295 |
| 754939 | Jan 18, 2013 | Jan 18, 2013 | Lewis Petro Properties, Inc. | Cotulla #74HH | 17,000 | 12735308 |
| 754937 | Jan 18, 2013 | Jan 18, 2013 | Lewis Petro Properties, Inc. | Cotulla #73HH | 17,000 | 12735307 |
| 754934 | Jan 18, 2013 | Jan 18, 2013 | Lewis Petro Properties, Inc. | Cotulla #61HH | 17,000 | 12735306 |
| 754801 | Jan 18, 2013 | Jan 18, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #84HH | 9,000 | 12735305 |
| 754795 | Jan 18, 2013 | Jan 18, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #83HH | 9,000 | 12735304 |
| 754785 | Jan 18, 2013 | Jan 18, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #82HH | 9,000 | 12735303 |
| 754781 | Jan 18, 2013 | Jan 18, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #81HH | 9,000 | 12735302 |
| 754769 | Jan 18, 2013 | Jan 18, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #79HH | 9,000 | 12735300 |
| 754659 | Jan 17, 2013 | Jan 17, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #78HH | 9,000 | 12735299 |
| 754657 | Jan 17, 2013 | Jan 17, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #77HH | 9,000 | 12735298 |
| 754651 | Jan 17, 2013 | Jan 17, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #76HH | 9,000 | 12735297 |
| 754649 | Jan 17, 2013 | Jan 17, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #75HH | 9,000 | 12735296 |
| 754517 | Jan 16, 2013 | Jan 16, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #74HH | 9,000 | 12735293 |
| 754511 | Jan 16, 2013 | Jan 16, 2013 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #5HH | 9,000 | 12735292 |
| 754005 | Jan 16, 2013 | Jan 16, 2013 | Lewis Petro Properties, Inc. | Gates 11-Dr #161HH | 9,000 | 12735262 |
| 754391 | Jan 15, 2013 | Jan 15, 2013 | Anadarko E&P Onshore LLC | Briscoe Springman Unit B #1HH | 9,000 | 12735285 |
| 754389 | Jan 15, 2013 | Jan 15, 2013 | Anadarko E&P Onshore LLC | Briscoe Springman Unit A #7HH | 9,000 | 12735284 |
| 754370 | Jan 15, 2013 | Jan 15, 2013 | Anadarko E&P Onshore LLC | Briscoe Springman Unit A #1HH | 9,000 | 12735278 |
| 754342 | Jan 14, 2013 | Jan 14, 2013 | Rosetta Resources Operating LP | Briscoe Ranch EF #23H | 8,550 | 12735277 |
| 754340 | Jan 14, 2013 | Jan 14, 2013 | Rosetta Resources Operating LP | Briscoe Ranch EF #22H | 8,550 | 12735276 |
| 754339 | Jan 14, 2013 | Jan 14, 2013 | Rosetta Resources Operating LP | Briscoe Ranch EF #21H | 8,550 | 12735275 |
| 754338 | Jan 14, 2013 | Jan 14, 2013 | Rosetta Resources Operating LP | Briscoe Ranch EF #20H | 8,550 | 12735274 |
| 754336 | Jan 14, 2013 | Jan 14, 2013 | Chesapeake Operating, Inc. | Lazy a Cotulla #M 1 | 7,800 | 12735273 |
| 754336Amendment | Jan 14, 2013 | Jan 14, 2013 | Chesapeake Operating, Inc. | Lazy a Cotulla #M 1 | 9,000 | 12735273 |
| 754271 | Jan 14, 2013 | Jan 14, 2013 | Texas American Resources Company | Bowman 68 Unit #1HH | 7,420 | 12735272 |
| 754257 | Jan 11, 2013 | Jan 11, 2013 | Newfield Exploration Company | Moro Creek #2307HH | 7,500 | 12735271 |
| 754257Amendment | Jan 11, 2013 | Jan 11, 2013 | Newfield Exploration Company | Moro Creek #2307HH | 7,500 | 12735271 |
| 754253 | Jan 10, 2013 | Jan 10, 2013 | Newfield Exploration Company | Moro Creek #2306HH | 7,500 | 12735270 |
| 754253Amendment | Jan 10, 2013 | Jan 10, 2013 | Newfield Exploration Company | Moro Creek #2306HH | 7,500 | 12735270 |
| 754251 | Jan 10, 2013 | Jan 10, 2013 | Newfield Exploration Company | Moro Creek #2305HH | 7,500 | 12735269 |
| 754248 | Jan 10, 2013 | Jan 10, 2013 | Newfield Exploration Company | Moro Creek #2304HH | 7,500 | 12735268 |
| 754244 | Jan 10, 2013 | Jan 10, 2013 | Newfield Exploration Company | Moro Creek #2303HH | 7,500 | 12735267 |
| 754046 | Jan 7, 2013 | Jan 7, 2013 | SM Energy Company | Briscoe Catarina East #24HH | 10,000 | 12735266 |
| 754035 | Jan 7, 2013 | Jan 7, 2013 | SM Energy Company | Briscoe Catarina East #23HH | 10,000 | 12735265 |
| 754029 | Jan 7, 2013 | Jan 7, 2013 | SM Energy Company | Briscoe Catarina East #22HH | 10,000 | 12735264 |
| 754024 | Jan 7, 2013 | Jan 7, 2013 | SM Energy Company | Briscoe Catarina East #21HH | 10,000 | 12735263 |
| 754003 | Jan 4, 2013 | Jan 4, 2013 | Lewis Petro Properties, Inc. | Gates 11-Dr #160HH | 9,000 | 12735261 |
| 754000 | Jan 4, 2013 | Jan 4, 2013 | Lewis Petro Properties, Inc. | Gates 11-Dr #159HH | 9,000 | 12735260 |
| 753999 | Jan 4, 2013 | Jan 4, 2013 | Lewis Petro Properties, Inc. | Gates 11-Dr #143HH | 9,000 | 12735259 |
| 753996 | Jan 4, 2013 | Jan 4, 2013 | Lewis Petro Properties, Inc. | Gates 11-Dr #142HH | 9,000 | 12735258 |
| 753994 | Jan 4, 2013 | Jan 4, 2013 | Lewis Petro Properties, Inc. | Gates 11-Dr #141HH | 9,000 | 12735257 |
| 753991 | Jan 4, 2013 | Jan 4, 2013 | Lewis Petro Properties, Inc. | Gates 11-Dr #140HH | 9,000 | 12735256 |
| 753882 | Jan 3, 2013 | Jan 3, 2013 | Newfield Exploration Company | Cmww B #2901HH | 7,000 | 12735253 |
| 753865 | Jan 3, 2013 | Jan 3, 2013 | Newfield Exploration Company | Cmww B #2903HH | 7,000 | 12735255 |
| 753864 | Jan 3, 2013 | Jan 3, 2013 | Newfield Exploration Company | Cmww B #2902HH | 7,000 | 12735254 |
| 753446 | Dec 21, 2012 | Dec 21, 2012 | Rosetta Resources Operating LP | Light Ranch #6H | 8,000 | 12735252 |
| 753446Amendment | Dec 21, 2012 | Dec 21, 2012 | Rosetta Resources Operating LP | Light Ranch #6H | 8,000 | 12735252 |