| 713633Amendment | Apr 8, 2011 | Apr 8, 2011 | Escondido Resources II, LLC | Augusta-Kenton #6HH | 12,500 | 47941259 |
| 713576 | Apr 8, 2011 | Apr 8, 2011 | Anadarko E&P Company LP | Briscoe Chupadera Ranch #9HH | 7,500 | 47941256 |
| 713556 | Apr 8, 2011 | Apr 8, 2011 | Anadarko E&P Company LP | Briscoe Chupadera Ranch #8HH | 7,500 | 47941255 |
| 713514 | Apr 8, 2011 | Apr 8, 2011 | Rosetta Resources Operating LP | Gates 10 Rose A #1004H | 8,500 | 47941254 |
| 713425 | Apr 8, 2011 | Apr 8, 2011 | Killam Oil Co., Ltd. | Killam & Hurd Fee 1195 #2 | 8,000 | 47941253 |
| 713416 | Apr 8, 2011 | Apr 8, 2011 | Lewis Petro Properties, Inc. | Gates 10-Dr #21HH | 16,500 | 47941252 |
| 713416Amendment | Apr 8, 2011 | Apr 8, 2011 | Lewis Petro Properties, Inc. | Gates 10-Dr #21HH | 16,500 | 47941252 |
| 713356 | Apr 5, 2011 | Apr 5, 2011 | Shell Western E&P | Piloncillo #D 6HH | 10,000 | 47941251 |
| 713356Amendment | Apr 5, 2011 | Apr 5, 2011 | Shell Western E&P | Piloncillo #D 6HAH | 15,000 | 47941251 |
| 713356Amendment | Apr 5, 2011 | Apr 5, 2011 | Shell Western E&P | Piloncillo #D 6HAH | 15,000 | 47941251 |
| 713356Amendment | Apr 5, 2011 | Apr 5, 2011 | Shell Western E&P | Piloncillo #D 6HAH | 15,000 | 47941251 |
| 713145 | Apr 1, 2011 | Apr 1, 2011 | SM Energy Company | San Ambrosia D #16HH | 10,000 | 47941249 |
| 713145Amendment | Apr 1, 2011 | Apr 1, 2011 | SM Energy Company | San Ambrosia D (SA1) #16HH | 9,000 | 47941249 |
| 713134 | Apr 1, 2011 | Apr 1, 2011 | Lewis Petro Properties, Inc. | Cox State 1470 #12 | 17,000 | 47941248 |
| 713084 | Apr 1, 2011 | Apr 1, 2011 | Columbus Energy, LLC | Hachar, D.D. #58QC | 2,000 | 47941250 |
| 712880 | Mar 30, 2011 | Mar 30, 2011 | SM Energy Company | Galvan Ranch #A125HH | 13,000 | 47941247 |
| 712850 | Mar 30, 2011 | Mar 30, 2011 | Lewis Petro Properties, Inc. | Dawson GU #2HH | 17,000 | 47941246 |
| 712850Amendment | Mar 30, 2011 | Mar 30, 2011 | Lewis Petro Properties, Inc. | Dawson GU #2HH | 17,000 | 47941246 |
| 712702 | Mar 28, 2011 | Mar 28, 2011 | Devon Energy Production Co, L.P. | Garner, John Ranch #3HH | 11,000 | 47941245 |
| 712702Amendment | Mar 28, 2011 | Mar 28, 2011 | Devon Energy Production Co, L.P. | John Garner Ranch #3HH | 11,000 | 47941245 |
| 712695 | Mar 28, 2011 | Mar 28, 2011 | Rosetta Resources Operating LP | Gates 09 Rose a BVP #02H | 9,500 | 47940810 |
| 712641 | Mar 25, 2011 | Mar 25, 2011 | Chesapeake Operating, Inc. | Faith-Yana #A 2HH | 9,000 | 47941244 |
| 712524 | Mar 25, 2011 | Mar 25, 2011 | EOG Resources, Inc. | Despain #8 | 10,250 | 47935780 |
| 712423 | Mar 24, 2011 | Mar 24, 2011 | Mohican Operating, L.L.C. | Winch #4 | 9,550 | 47941242 |
| 712313 | Mar 24, 2011 | Mar 24, 2011 | Chesapeake Operating, Inc. | Faith-Yana #A 1HH | 9,000 | 47941243 |
| 712266 | Mar 22, 2011 | Mar 22, 2011 | Chesapeake Operating, Inc. | Faith-Yana #B 1HH | 9,000 | 47941240 |
| 711916 | Mar 22, 2011 | Mar 22, 2011 | Anadarko E&P Company LP | Stanley Ranch #25HH | 9,800 | 47941241 |
| 712173 | Mar 21, 2011 | Mar 21, 2011 | Rosetta Resources Operating LP | Gates 05-D #808H | 8,500 | 47941238 |
| 712367 | Mar 18, 2011 | Mar 18, 2011 | Lewis Petro Properties, Inc. | La Moca Gas Unit K #16HH | 12,500 | 47941239 |
| 712177 | Mar 18, 2011 | Mar 18, 2011 | Rosetta Resources Operating LP | Gates 05-D #908H | 8,500 | 47941237 |
| 712124 | Mar 18, 2011 | Mar 18, 2011 | Rosetta Resources Operating LP | Gates 05-D #708H | 8,500 | 47941236 |
| 712044 | Mar 18, 2011 | Mar 18, 2011 | Lewis Petro Properties, Inc. | Leyendecker-Hunter 1377 #2HH | 17,000 | 47941235 |
| 712044Amendment | Mar 18, 2011 | Mar 18, 2011 | Lewis Petro Properties, Inc. | Leyendecker-Hunter 1377 G.U. #2HH | 17,000 | 47941235 |
| 711969 | Mar 16, 2011 | Mar 16, 2011 | Laredo Energy | Puig #4HH | 16,500 | 47941233 |
| 711888 | Mar 16, 2011 | Mar 16, 2011 | Shell Western E&P | Piloncillo #D 3HH | 9,500 | 47941234 |
| 711888Amendment | Mar 16, 2011 | Mar 16, 2011 | Shell Western E&P | Piloncillo #D 3HH | 15,000 | 47941234 |
| 711377 | Mar 16, 2011 | Mar 16, 2011 | XTO Energy Inc. | Las Raices Ranch #15HH | 18,500 | 47941225 |
| 711373 | Mar 16, 2011 | Mar 16, 2011 | XTO Energy Inc. | Las Raices Ranch #11HH | 17,000 | 47941224 |
| 711889 | Mar 15, 2011 | Mar 15, 2011 | Anadarko E&P Company LP | Stanley Ranch #24HH | 9,800 | 47941231 |
| 711878 | Mar 15, 2011 | Mar 15, 2011 | Laredo Energy | Rosa V. Benavides #14 | 14,000 | 47941227 |
| 711878Amendment | Mar 15, 2011 | Mar 15, 2011 | Laredo Energy | Rosa V. Benavides #14 | 14,000 | 47941227 |
| 711878Amendment | Mar 15, 2011 | Mar 15, 2011 | Laredo Energy | Rosa V. Benavides #14 | 14,000 | 47941227 |
| 711871 | Mar 15, 2011 | Mar 15, 2011 | Anadarko Petroleum Corporation | Briscoe Chupadera Ranch #7HH | 7,500 | 47941226 |
| 711795 | Mar 15, 2011 | Mar 15, 2011 | Lewis Petro Properties, Inc. | Gates 10-Dr #18HH | 16,500 | 47941232 |
| 711795Amendment | Mar 15, 2011 | Mar 15, 2011 | Lewis Petro Properties, Inc. | Gates 10-Dr TR 1 #18HH | 16,500 | 47941232 |
| 711806 | Mar 11, 2011 | Mar 11, 2011 | SM Energy Company | Galvan Ranch #A541HH | 10,000 | 47941230 |
| 711806Amendment | Mar 11, 2011 | Mar 11, 2011 | SM Energy Company | Galvan Ranch #A541HH | 10,000 | 47941230 |
| 711801 | Mar 11, 2011 | Mar 11, 2011 | SM Energy Company | Galvan Ranch #A540HH | 10,000 | 47941229 |
| 711801Amendment | Mar 11, 2011 | Mar 11, 2011 | SM Energy Company | Galvan Ranch #A540HH | 10,000 | 47941229 |
| 711800 | Mar 11, 2011 | Mar 11, 2011 | SM Energy Company | Galvan Ranch #A539HH | 10,000 | 47941228 |
| 711862 | Mar 10, 2011 | Mar 10, 2011 | Anadarko E&P Company LP | Briscoe Chupadera Ranch #6HH | 7,500 | 47941220 |
| 711845 | Mar 10, 2011 | Mar 10, 2011 | Anadarko E&P Company LP | Briscoe Chupadera Ranch #5HH | 7,500 | 47941219 |
| 711790 | Mar 10, 2011 | Mar 10, 2011 | SM Energy Company | Galvan Ranch #A444HH | 10,000 | 47941223 |
| 711773 | Mar 10, 2011 | Mar 10, 2011 | SM Energy Company | Galvan Ranch #A443HH | 10,000 | 47941222 |
| 711759 | Mar 10, 2011 | Mar 10, 2011 | SM Energy Company | Galvan Ranch #A442HH | 10,000 | 47941221 |
| 711674 | Mar 10, 2011 | Mar 10, 2011 | Laredo Energy | Rosa V. Benavides #11HH | 11,000 | 47941218 |
| 711105 | Mar 9, 2011 | Mar 9, 2011 | SM Energy Company | San Ambrosia D #15HH | 10,000 | 47941217 |
| 711471 | Mar 8, 2011 | Mar 8, 2011 | Shell Western E&P | Piloncillo #D 4HH | 10,000 | 47941216 |
| 711471Amendment | Mar 8, 2011 | Mar 8, 2011 | Shell Western E&P | Piloncillo #D 4HH | 15,000 | 47941216 |
| 711471Amendment | Mar 8, 2011 | Mar 8, 2011 | Shell Western E&P | Piloncillo #D 4HH | 15,000 | 47941216 |
| 711427 | Mar 7, 2011 | Mar 7, 2011 | Anadarko E&P Company LP | Briscoe Chupadera Ranch #3HH | 7,600 | 47941212 |
| 711415 | Mar 7, 2011 | Mar 7, 2011 | Anadarko E&P Company LP | Briscoe Chupadera Ranch #4HH | 7,600 | 47941211 |
| 711402 | Mar 7, 2011 | Mar 7, 2011 | Lewis Petro Properties, Inc. | La Moca Gas Unit G #15HH | 12,500 | 47941210 |
| 711233 | Mar 7, 2011 | Mar 7, 2011 | Rosetta Resources Operating LP | Gates 05-D #6129H | 8,400 | 47941215 |
| 711233Amendment | Mar 7, 2011 | Mar 7, 2011 | Rosetta Resources Operating LP | Gates 05-D #6129H | 8,400 | 47941215 |
| 711226 | Mar 7, 2011 | Mar 7, 2011 | Rosetta Resources Operating LP | Gates 05-D #5129H | 8,400 | 47941214 |
| 711226Amendment | Mar 7, 2011 | Mar 7, 2011 | Rosetta Resources Operating LP | Gates 05-D #5129H | 8,400 | 47941214 |
| 711222 | Mar 7, 2011 | Mar 7, 2011 | Rosetta Resources Operating LP | Gates 05-D #4129H | 8,400 | 47941213 |
| 711222Amendment | Mar 7, 2011 | Mar 7, 2011 | Rosetta Resources Operating LP | Gates 05-D #4129H | 8,400 | 47941213 |
| 710899 | Mar 2, 2011 | Mar 2, 2011 | Escondido Resources II, LLC | Gilpin #2HH | 12,000 | 47941208 |
| 710899Amendment | Mar 2, 2011 | Mar 2, 2011 | Escondido Resources II, LLC | Gilpin #2HH | 12,000 | 47941208 |
| 710880 | Mar 2, 2011 | Mar 2, 2011 | Escondido Resources II, LLC | Gilpin #1HH | 12,000 | 47941207 |
| 710880Amendment | Mar 2, 2011 | Mar 2, 2011 | Escondido Resources II, LLC | Gilpin #1HH | 12,000 | 47941207 |
| 710764 | Feb 28, 2011 | Feb 28, 2011 | Rosetta Resources Operating LP | Gates 09 Rose a BVP #9H | 8,650 | 47941204 |
| 710837 | Feb 25, 2011 | Feb 25, 2011 | Laredo Energy | Rosa V. Benavides #13HH | 17,500 | 47941209 |
| 710749 | Feb 25, 2011 | Feb 25, 2011 | Rosetta Resources Operating LP | Gates 09 Rose a BVP #7H | 8,650 | 47941202 |
| 710769 | Feb 24, 2011 | Feb 24, 2011 | SM Energy Company | San Ambrosia D #14HH | 10,000 | 47941206 |
| 710753 | Feb 24, 2011 | Feb 24, 2011 | Rosetta Resources Operating LP | Gates 09 Rose a BVP #8H | 8,650 | 47941203 |
| 710739 | Feb 24, 2011 | Feb 24, 2011 | Laredo Energy | Puig #3HH | 16,500 | 47941205 |
| 710716 | Feb 24, 2011 | Feb 24, 2011 | SM Energy Company | Briscoe G #13HH | 10,000 | 47941201 |
| 710705 | Feb 24, 2011 | Feb 24, 2011 | Lewis Petro Properties, Inc. | Cox-State #11HH | 17,000 | 47941199 |
| 710628 | Feb 24, 2011 | Feb 24, 2011 | Lewis Petro Properties, Inc. | Stewart Trust #8HH | 12,500 | 47941198 |
| 710798 | Feb 23, 2011 | Feb 23, 2011 | San Isidro Development Co, L. C. | Ramirez, C H Minerals, Ltd 'B' #3 | 9,000 | 47941200 |
| 710536 | Feb 18, 2011 | Feb 18, 2011 | XTO Energy Inc. | Las Raices Ranch #9HH | 17,000 | 47941197 |
| 710266 | Feb 18, 2011 | Feb 18, 2011 | Lewis Petro Properties, Inc. | Palafox 1335 #43HH | 17,000 | 47941196 |
| 709879 | Feb 18, 2011 | Feb 18, 2011 | Zone Energy, LLC | Adami 345 #1 | 2,000 | 47938983 |
| 710235 | Feb 17, 2011 | Feb 17, 2011 | SM Energy Company | Briscoe G #12HH | 10,000 | 47941195 |
| 710185 | Feb 15, 2011 | Feb 15, 2011 | Anadarko E&P Company LP | Worthey Ranch #7HH | 9,700 | 47941194 |
| 710180 | Feb 15, 2011 | Feb 15, 2011 | Conocophillips Company | Dix Ranch State C #528B | 6,848 | 47940099 |
| 710126 | Feb 14, 2011 | Feb 14, 2011 | SM Energy Company | Briscoe G #8HH | 10,000 | 47941193 |
| 710036 | Feb 11, 2011 | Feb 11, 2011 | Lewis Petro Properties, Inc. | Briscoe Ranch 1141 #13HH | 17,000 | 47941192 |
| 709978 | Feb 10, 2011 | Feb 10, 2011 | Rosetta Resources Operating LP | Gates 05-D #907AH | 8,500 | 47941191 |
| 709972 | Feb 10, 2011 | Feb 10, 2011 | Rosetta Resources Operating LP | Gates 05-D #807AH | 8,500 | 47941190 |
| 709968 | Feb 10, 2011 | Feb 10, 2011 | Rosetta Resources Operating LP | Gates 05-D #707H | 8,500 | 47941189 |
| 709368 | Feb 9, 2011 | Feb 9, 2011 | Escondido Resources II, LLC | Cerrito B #15HH | 14,000 | 47941188 |
| 709233 | Feb 8, 2011 | Feb 8, 2011 | Killam Oil Co., Ltd. | K&H Fee "a" 1569 #2 | 8,800 | 47932869 |
| 709648 | Feb 7, 2011 | Feb 7, 2011 | Lewis Petro Properties, Inc. | J.J. Trevino #2HH | 12,500 | 47941187 |
| 709581 | Feb 7, 2011 | Feb 7, 2011 | Rosetta Resources Operating LP | Gates 05-D #419H | 9,500 | 47940738 |
| 709620 | Feb 4, 2011 | Feb 4, 2011 | Escondido Resources II, LLC | Callaghan A #1 | 7,000 | 47941183 |
| 709620Amendment | Feb 4, 2011 | Feb 4, 2011 | Escondido Resources II, LLC | Callaghan A #1 | 14,000 | 47941183 |