| 753085 | Dec 19, 2012 | Dec 19, 2012 | Anadarko E&P Company LP | Briscoe Eckhardt-Swonke Unit #5HH | 9,000 | 12735246 |
| 753085Amendment | Dec 19, 2012 | Dec 19, 2012 | Anadarko E&P Onshore LLC | Briscoe Eckhardt-Swonke Unit #5HH | 8,500 | 12735246 |
| 753082 | Dec 19, 2012 | Dec 19, 2012 | Anadarko E&P Company LP | Briscoe Eckhardt-Swonke Unit #4HH | 9,000 | 12735245 |
| 753082Amendment | Dec 19, 2012 | Dec 19, 2012 | Anadarko E&P Onshore LLC | Briscoe Eckhardt-Swonke Unit #4HH | 8,500 | 12735245 |
| 753062 | Dec 19, 2012 | Dec 19, 2012 | Anadarko E&P Company LP | Briscoe Eckhardt-Swonke Unit #3HH | 9,000 | 12735244 |
| 753061 | Dec 19, 2012 | Dec 19, 2012 | Murphy Expl. & Prod. Co. - USA | Stumberg Estate Unit B #1HH | 7,100 | 12735247 |
| 753185 | Dec 17, 2012 | Dec 17, 2012 | Murphy Expl. & Prod. Co. - USA | Stumberg Estate Unit B #2HH | 7,100 | 12735248 |
| 753092 | Dec 17, 2012 | Dec 17, 2012 | Anadarko E&P Company LP | Briscoe Eckhardt-Swonke Unit #7HH | 9,000 | 12735250 |
| 753089 | Dec 17, 2012 | Dec 17, 2012 | Anadarko E&P Company LP | Briscoe Eckhardt-Swonke Unit #6HH | 9,000 | 12735249 |
| 753058 | Dec 17, 2012 | Dec 17, 2012 | Anadarko E&P Company LP | Briscoe Eckhardt-Swonke Unit #2HH | 9,000 | 12735243 |
| 753052 | Dec 17, 2012 | Dec 17, 2012 | Anadarko E&P Company LP | Briscoe Eckhardt-Swonke Unit #1HH | 9,000 | 12735241 |
| 753027 | Dec 17, 2012 | Dec 17, 2012 | Anadarko E&P Company LP | Fogmt #11SPH | 7,300 | 12735242 |
| 752074 | Dec 17, 2012 | Dec 17, 2012 | Chesapeake Operating, Inc. | Hatch Dim #F 3HH | 9,000 | 12735187 |
| 753028 | Dec 14, 2012 | Dec 14, 2012 | Anadarko E&P Company LP | Fogmt #12SPH | 7,300 | 12735240 |
| 753026 | Dec 14, 2012 | Dec 14, 2012 | Anadarko E&P Company LP | Fogmt #10SPH | 7,300 | 12735238 |
| 752975 | Dec 14, 2012 | Dec 14, 2012 | SM Energy Company | Briscoe Catarina East #17HH | 10,000 | 12735237 |
| 752964 | Dec 14, 2012 | Dec 14, 2012 | SM Energy Company | Briscoe Catarina East #16HH | 10,000 | 12735236 |
| 752953 | Dec 14, 2012 | Dec 14, 2012 | SM Energy Company | Briscoe Catarina East #15HH | 10,000 | 12735235 |
| 752938 | Dec 14, 2012 | Dec 14, 2012 | Rosetta Resources Operating LP | Briscoe Ranch EF #13H | 8,000 | 12735234 |
| 752935 | Dec 14, 2012 | Dec 14, 2012 | Rosetta Resources Operating LP | Briscoe Ranch EF #12H | 8,000 | 12735233 |
| 752932 | Dec 14, 2012 | Dec 14, 2012 | Rosetta Resources Operating LP | Briscoe Ranch EF #11H | 8,000 | 12735232 |
| 752932Amendment | Dec 14, 2012 | Dec 14, 2012 | Rosetta Resources Operating LP | Briscoe Ranch EF #11H | 8,000 | 12735232 |
| 752911 | Dec 14, 2012 | Dec 14, 2012 | Murphy Expl. & Prod. Co. - USA | Stumberg Unit A #2HH | 7,100 | 12735231 |
| 752890 | Dec 13, 2012 | Dec 13, 2012 | Murphy Expl. & Prod. Co. - USA | Stumberg Estate Unit A #1HH | 7,100 | 12735230 |
| 752886 | Dec 13, 2012 | Dec 13, 2012 | Anadarko E&P Company LP | Briscoe Cochina East Ranch #39HH | 9,350 | 12735229 |
| 752863 | Dec 13, 2012 | Dec 13, 2012 | Anadarko E&P Company LP | Briscoe Cochina East Ranch #38HH | 9,350 | 12735228 |
| 752856 | Dec 13, 2012 | Dec 13, 2012 | Murphy Expl. & Prod. Co. - USA | El Regalo Buckhorn #8HH | 7,358 | 12735226 |
| 752853 | Dec 13, 2012 | Dec 13, 2012 | Murphy Expl. & Prod. Co. - USA | El Regalo Buckhorn #7HH | 7,358 | 12735225 |
| 752801 | Dec 13, 2012 | Dec 13, 2012 | Hughes, Dan A. Company, L.P. | Irish-Seeligson Unit #1HH | 12,500 | 12735224 |
| 752710 | Dec 11, 2012 | Dec 11, 2012 | Chesapeake Operating, Inc. | Lazy a Cotulla #M 5HH | 9,000 | 12735222 |
| 752709 | Dec 11, 2012 | Dec 11, 2012 | Chesapeake Operating, Inc. | Lazy a Cotulla #M 4HH | 9,000 | 12735221 |
| 752691 | Dec 11, 2012 | Dec 11, 2012 | Chesapeake Operating, Inc. | Flying G Unit Dim #2HH | 9,000 | 12735220 |
| 752691Amendment | Dec 11, 2012 | Dec 11, 2012 | Chesapeake Operating, Inc. | Flying G Unit Dim #2HH | 9,000 | 12735220 |
| 752691Amendment | Dec 11, 2012 | Dec 11, 2012 | Chesapeake Operating, Inc. | Flying G Unit Dim #2HH | 9,000 | 12735220 |
| 752604 | Dec 11, 2012 | Dec 11, 2012 | Anadarko E&P Company LP | Briscoe Cochina East Ranch #34HH | 9,350 | 12735223 |
| 752671 | Dec 10, 2012 | Dec 10, 2012 | Anadarko E&P Company LP | Briscoe Cochina East Ranch #37HH | 9,350 | 12735213 |
| 752665 | Dec 10, 2012 | Dec 10, 2012 | Anadarko E&P Company LP | Briscoe Catarina Ranch #73HH | 8,900 | 12735219 |
| 752665Amendment | Dec 10, 2012 | Dec 10, 2012 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #73HH | 8,900 | 12735219 |
| 752664 | Dec 10, 2012 | Dec 10, 2012 | Anadarko E&P Company LP | Briscoe Catarina Ranch #72HH | 8,900 | 12735218 |
| 752664Amendment | Dec 10, 2012 | Dec 10, 2012 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #72HH | 8,900 | 12735218 |
| 752657 | Dec 10, 2012 | Dec 10, 2012 | Anadarko E&P Company LP | Briscoe Catarina Ranch #71HH | 8,900 | 12735217 |
| 752657Amendment | Dec 10, 2012 | Dec 10, 2012 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #71HH | 8,900 | 12735217 |
| 752654 | Dec 10, 2012 | Dec 10, 2012 | Anadarko E&P Company LP | Briscoe Catarina Ranch #58HH | 8,900 | 12735216 |
| 752647 | Dec 10, 2012 | Dec 10, 2012 | Anadarko E&P Company LP | Briscoe Catarina Ranch #57HH | 8,900 | 12735215 |
| 752641 | Dec 10, 2012 | Dec 10, 2012 | Anadarko E&P Company LP | Briscoe Catarina Ranch #56HH | 8,900 | 12735214 |
| 752598 | Dec 7, 2012 | Dec 7, 2012 | CML Exploration, LLC | Montemayor #1H | 6,300 | 12735209 |
| 752598Amendment | Dec 7, 2012 | Dec 7, 2012 | CML Exploration, LLC | Montemayor #1H | 6,300 | 12735209 |
| 752598Amendment | Dec 7, 2012 | Dec 7, 2012 | CML Exploration, LLC | Montemayor #1H | 6,300 | 12735209 |
| 752571 | Dec 7, 2012 | Dec 7, 2012 | Newfield Exploration Company | Moro Creek #703HH | 7,500 | 12735212 |
| 752618 | Dec 6, 2012 | Dec 6, 2012 | Anadarko E&P Company LP | Briscoe Cochina East Ranch #36HH | 9,350 | 12735211 |
| 752609 | Dec 6, 2012 | Dec 6, 2012 | Anadarko E&P Company LP | Briscoe Cochina East Ranch #35HH | 9,350 | 12735210 |
| 752494 | Dec 6, 2012 | Dec 6, 2012 | Anadarko E&P Company LP | Briscoe Cochina East Ranch #33HH | 9,225 | 12735208 |
| 752493 | Dec 6, 2012 | Dec 6, 2012 | Anadarko E&P Company LP | Briscoe Cochina East Ranch #30HH | 9,225 | 12735207 |
| 752489 | Dec 6, 2012 | Dec 6, 2012 | Anadarko E&P Company LP | Briscoe Cochina East Ranch #29HH | 9,225 | 12735206 |
| 752487 | Dec 6, 2012 | Dec 6, 2012 | Anadarko E&P Company LP | Briscoe Cochina East Ranch #28HH | 9,225 | 12735205 |
| 752429 | Dec 6, 2012 | Dec 6, 2012 | Anadarko E&P Company LP | Briscoe Cochina East Ranch #23HH | 9,225 | 12735203 |
| 752410 | Dec 6, 2012 | Dec 6, 2012 | Anadarko E&P Company LP | Briscoe Cochina East Ranch #22HH | 9,225 | 12735204 |
| 752361 | Dec 5, 2012 | Dec 5, 2012 | Newfield Exploration Company | Moro Creek #702HH | 8,000 | 12735202 |
| 752341 | Dec 5, 2012 | Dec 5, 2012 | Anadarko E&P Company LP | Diamond H Ranch #12HH | 8,660 | 12735201 |
| 752337 | Dec 5, 2012 | Dec 5, 2012 | Newfield Exploration Company | Moro Creek #701HH | 8,000 | 12735200 |
| 752312 | Dec 4, 2012 | Dec 4, 2012 | Anadarko E&P Company LP | Briscoe Catarina Ranch #108HH | 9,000 | 12735199 |
| 752310 | Dec 4, 2012 | Dec 4, 2012 | Anadarko E&P Company LP | Briscoe Catarina Ranch #70HH | 9,000 | 12735198 |
| 752309 | Dec 4, 2012 | Dec 4, 2012 | Anadarko E&P Company LP | Briscoe Catarina Ranch #69HH | 9,000 | 12735197 |
| 752251 | Dec 4, 2012 | Dec 4, 2012 | Anadarko E&P Company LP | Briscoe Catarina Ranch #68HH | 9,000 | 12735196 |
| 752244 | Dec 4, 2012 | Dec 4, 2012 | Anadarko E&P Company LP | Briscoe Catarina Ranch #67HH | 9,000 | 12735195 |
| 752240 | Dec 4, 2012 | Dec 4, 2012 | Anadarko E&P Company LP | Briscoe Catarina Ranch #66HH | 9,000 | 12735194 |
| 752236 | Dec 4, 2012 | Dec 4, 2012 | Anadarko E&P Company LP | Briscoe Catarina Ranch #65HH | 9,000 | 12735193 |
| 752179 | Dec 4, 2012 | Dec 4, 2012 | Anadarko E&P Company LP | Briscoe Catarina Ranch #64HH | 9,000 | 12735186 |
| 752179Amendment | Dec 4, 2012 | Dec 4, 2012 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #64HH | 9,000 | 12735186 |
| 752174 | Dec 4, 2012 | Dec 4, 2012 | Anadarko E&P Company LP | Briscoe Catarina Ranch #63HH | 9,000 | 12735185 |
| 752174Amendment | Dec 4, 2012 | Dec 4, 2012 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #63HH | 9,000 | 12735185 |
| 752172 | Dec 4, 2012 | Dec 4, 2012 | Anadarko E&P Company LP | Briscoe Catarina Ranch #62HH | 9,000 | 12735183 |
| 752165 | Dec 4, 2012 | Dec 4, 2012 | Anadarko E&P Company LP | Briscoe Catarina Ranch #61HH | 9,000 | 12735184 |
| 752165Amendment | Dec 4, 2012 | Dec 4, 2012 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #61HH | 9,000 | 12735184 |
| 752154 | Dec 4, 2012 | Dec 4, 2012 | Anadarko E&P Company LP | Briscoe Catarina Ranch #60HH | 9,000 | 12735190 |
| 752150 | Dec 4, 2012 | Dec 4, 2012 | Anadarko E&P Company LP | Briscoe Catarina Ranch #59HH | 9,000 | 12735188 |
| 752171 | Nov 30, 2012 | Nov 30, 2012 | Anadarko E&P Company LP | Diamond H State #17HH | 8,800 | 12735192 |
| 752128 | Nov 30, 2012 | Nov 30, 2012 | Chesapeake Operating, Inc. | Steubing Unit a Dim #1HH | 9,000 | 12735191 |
| 752128Amendment | Nov 30, 2012 | Nov 30, 2012 | Chesapeake Operating, Inc. | Steubing Unit a Dim #1HH | 9,000 | 12735191 |
| 752121 | Nov 29, 2012 | Nov 29, 2012 | Texas American Resources Company | Bowman 82 Unit #1HH | 7,397 | 12735189 |
| 751873 | Nov 27, 2012 | Nov 27, 2012 | Chesapeake Operating, Inc. | Gibson Dim #E 8HH | 9,000 | 12735182 |
| 751870 | Nov 27, 2012 | Nov 27, 2012 | Chesapeake Operating, Inc. | Gibson Dim #E 7HH | 9,000 | 12735181 |
| 751477 | Nov 20, 2012 | Nov 20, 2012 | Chesapeake Operating, Inc. | Lazy a Cotulla #L 2HH | 9,000 | 12735178 |
| 751652 | Nov 19, 2012 | Nov 19, 2012 | Chesapeake Operating, Inc. | Lazy a Cotulla #K 1HH | 9,000 | 12735176 |
| 751652Amendment | Nov 19, 2012 | Nov 19, 2012 | Chesapeake Operating, Inc. | Lazy a Cotulla #K 1HH | 9,000 | 12735176 |
| 751651 | Nov 19, 2012 | Nov 19, 2012 | Chesapeake Operating, Inc. | Lazy a Cotulla #E 3HH | 9,000 | 12735177 |
| 751648 | Nov 19, 2012 | Nov 19, 2012 | Chesapeake Operating, Inc. | Lazy a Cotulla #K 2HH | 9,000 | 12735175 |
| 751648Amendment | Nov 19, 2012 | Nov 19, 2012 | Chesapeake Operating, Inc. | Lazy a Cotulla #K 2HH | 9,000 | 12735175 |
| 751508 | Nov 16, 2012 | Nov 16, 2012 | Chesapeake Operating, Inc. | Lazy a Cotulla #L 1HH | 9,000 | 12735162 |
| 751489 | Nov 16, 2012 | Nov 16, 2012 | Anadarko E&P Company LP | Briscoe Catarina North #83HH | 8,700 | 12735174 |
| 751484 | Nov 16, 2012 | Nov 16, 2012 | Anadarko E&P Company LP | Briscoe Catarina North #82HH | 8,700 | 12735173 |
| 751483 | Nov 16, 2012 | Nov 16, 2012 | Anadarko E&P Company LP | Briscoe Catarina North #81HH | 8,700 | 12735172 |
| 751465 | Nov 16, 2012 | Nov 16, 2012 | Anadarko E&P Company LP | Briscoe Catarina North #80HH | 8,700 | 12735171 |
| 751460 | Nov 16, 2012 | Nov 16, 2012 | Anadarko E&P Company LP | Briscoe Catarina North #79HH | 8,700 | 12735170 |
| 751460Amendment | Nov 16, 2012 | Nov 16, 2012 | Anadarko E&P Onshore LLC | Briscoe Catarina North #79HH | 8,700 | 12735170 |
| 751455 | Nov 16, 2012 | Nov 16, 2012 | Anadarko E&P Company LP | Briscoe Catarina North #78HH | 8,700 | 12735169 |
| 751453 | Nov 16, 2012 | Nov 16, 2012 | Anadarko E&P Company LP | Briscoe Catarina North #77HH | 8,700 | 12735168 |
| 751453Amendment | Nov 16, 2012 | Nov 16, 2012 | Anadarko E&P Onshore LLC | Briscoe Catarina North #77HH | 8,700 | 12735168 |
| 751452 | Nov 16, 2012 | Nov 16, 2012 | Chesapeake Operating, Inc. | Sugarland Dim #D 5HH | 9,000 | 12735161 |
| 751452Amendment | Nov 16, 2012 | Nov 16, 2012 | Chesapeake Operating, Inc. | Sugarland Dim #D 5HH | 9,000 | 12735161 |