| 728283Amendment | Nov 18, 2011 | Nov 18, 2011 | Anadarko E&P Onshore LLC | La Bandera Ranch #8HH | 6,428 | 12734402 |
| 728265 | Nov 18, 2011 | Nov 18, 2011 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #A 7HH | 9,000 | 12734393 |
| 728262 | Nov 18, 2011 | Nov 18, 2011 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #A 4HH | 9,000 | 12734396 |
| 728255 | Nov 18, 2011 | Nov 18, 2011 | Chesapeake Operating, Inc. | Faith Toro Dim C Unit #B 1HH | 9,000 | 12734392 |
| 728235 | Nov 18, 2011 | Nov 18, 2011 | Chesapeake Operating, Inc. | Faith Toro Dim #B 4HH | 9,000 | 12734391 |
| 728220 | Nov 17, 2011 | Nov 17, 2011 | Anadarko E&P Company LP | Briscoe Catarina Ranch #33HH | 9,000 | 12734390 |
| 728220Amendment | Nov 17, 2011 | Nov 17, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #33HH | 9,000 | 12734390 |
| 728219 | Nov 17, 2011 | Nov 17, 2011 | Anadarko E&P Company LP | Briscoe Catarina Ranch #32HH | 9,000 | 12734389 |
| 728219Amendment | Nov 17, 2011 | Nov 17, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #32HH | 9,000 | 12734389 |
| 728218 | Nov 17, 2011 | Nov 17, 2011 | Anadarko E&P Company LP | Briscoe Catarina Ranch #31HH | 9,000 | 12734388 |
| 728218Amendment | Nov 17, 2011 | Nov 17, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #31HH | 9,000 | 12734388 |
| 728177 | Nov 17, 2011 | Nov 17, 2011 | Anadarko E&P Company LP | Maund Ranch #3HH | 6,500 | 12734387 |
| 728177Amendment | Nov 17, 2011 | Nov 17, 2011 | Anadarko E&P Onshore LLC | Maund Ranch 19 Unit #3HH | 6,500 | 12734387 |
| 728020 | Nov 17, 2011 | Nov 17, 2011 | Chesapeake Operating, Inc. | Faith Toro Dim #B 3HH | 9,000 | 12734394 |
| 728035 | Nov 15, 2011 | Nov 15, 2011 | Anadarko E&P Company LP | Beinhorn Ranch #26HH | 9,000 | 12734386 |
| 728035Amendment | Nov 15, 2011 | Nov 15, 2011 | Anadarko E&P Onshore LLC | Beinhorn Ranch #26HH | 9,000 | 12734386 |
| 728033 | Nov 15, 2011 | Nov 15, 2011 | Anadarko E&P Company LP | Beinhorn Ranch #25HH | 9,000 | 12734385 |
| 728033Amendment | Nov 15, 2011 | Nov 15, 2011 | Anadarko E&P Onshore LLC | Beinhorn Ranch #25HH | 9,000 | 12734385 |
| 728031 | Nov 15, 2011 | Nov 15, 2011 | Anadarko E&P Company LP | Beinhorn Ranch #24HH | 9,000 | 12734384 |
| 728031Amendment | Nov 15, 2011 | Nov 15, 2011 | Anadarko E&P Onshore LLC | Beinhorn Ranch #24HH | 9,000 | 12734384 |
| 728030 | Nov 15, 2011 | Nov 15, 2011 | Anadarko E&P Company LP | Beinhorn Ranch #23HH | 9,000 | 12734383 |
| 728030Amendment | Nov 15, 2011 | Nov 15, 2011 | Anadarko E&P Onshore LLC | Beinhorn Ranch #23HH | 9,000 | 12734383 |
| 728021 | Nov 15, 2011 | Nov 15, 2011 | Shell Western E&P | Piloncillo #A 7HEH | 18,000 | 12734382 |
| 728021Amendment | Nov 15, 2011 | Nov 15, 2011 | Shell Western E&P | Piloncillo #A 7HEH | 18,000 | 12734382 |
| 727737 | Nov 9, 2011 | Nov 9, 2011 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #A 2HH | 9,000 | 12734381 |
| 727726 | Nov 9, 2011 | Nov 9, 2011 | Chesapeake Operating, Inc. | Hearne Dim A #1HH | 9,000 | 12734379 |
| 727420 | Nov 8, 2011 | Nov 8, 2011 | Key Energy Services, LLC | Carrizo Springs SWD #1 | 3,100 | 12734380 |
| 726117 | Nov 8, 2011 | Nov 8, 2011 | Anadarko E&P Company LP | Briscoe Catarina North #49HH | 8,410 | 12734378 |
| 726117Amendment | Nov 8, 2011 | Nov 8, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina North #49HH | 7,535 | 12734378 |
| 726116 | Nov 8, 2011 | Nov 8, 2011 | Anadarko E&P Company LP | Briscoe Catarina North #48HH | 8,410 | 12734377 |
| 726116Amendment | Nov 8, 2011 | Nov 8, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina North #48HH | 7,544 | 12734377 |
| 726111 | Nov 8, 2011 | Nov 8, 2011 | Anadarko E&P Company LP | Briscoe Catarina North #47HH | 8,410 | 12734376 |
| 726111Amendment | Nov 8, 2011 | Nov 8, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina North #47HH | 7,544 | 12734376 |
| 726108 | Nov 8, 2011 | Nov 8, 2011 | Anadarko E&P Company LP | Briscoe Catarina North #46HH | 8,460 | 12734375 |
| 726108Amendment | Nov 8, 2011 | Nov 8, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina North #46HH | 7,618 | 12734375 |
| 726100 | Nov 8, 2011 | Nov 8, 2011 | Anadarko E&P Company LP | Briscoe Catarina North #45HH | 8,460 | 12734344 |
| 726100Amendment | Nov 8, 2011 | Nov 8, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina North #45HH | 7,633 | 12734344 |
| 727375 | Nov 3, 2011 | Nov 3, 2011 | Chesapeake Operating, Inc. | Holubar Dim #C 2HH | 9,000 | 12734374 |
| 727193 | Nov 2, 2011 | Nov 2, 2011 | Chesapeake Operating, Inc. | Faith Sandy Dim #C 2HH | 9,000 | 12734372 |
| 727193Amendment | Nov 2, 2011 | Nov 2, 2011 | Chesapeake Operating, Inc. | Faith Sandy Dim #C 2HH | 9,000 | 12734372 |
| 727191 | Nov 2, 2011 | Nov 2, 2011 | Chesapeake Operating, Inc. | Faith Sandy Dim #C 1HH | 9,000 | 12734373 |
| 727191Amendment | Nov 2, 2011 | Nov 2, 2011 | Chesapeake Operating, Inc. | Faith Sandy Dim #C 1HH | 9,000 | 12734373 |
| 727090 | Nov 1, 2011 | Nov 1, 2011 | Anadarko E&P Company LP | Stumberg Ranch #18HH | 8,900 | 12734371 |
| 727090Amendment | Nov 1, 2011 | Nov 1, 2011 | Anadarko E&P Onshore LLC | Stumberg Ranch #18HH | 8,900 | 12734371 |
| 727032 | Nov 1, 2011 | Nov 1, 2011 | Anadarko E&P Company LP | Stumberg Ranch #16HH | 8,900 | 12734369 |
| 727032Amendment | Nov 1, 2011 | Nov 1, 2011 | Anadarko E&P Onshore LLC | Stumberg Ranch #16HH | 8,900 | 12734369 |
| 726098 | Nov 1, 2011 | Nov 1, 2011 | Anadarko E&P Company LP | Briscoe Catarina North #44HH | 8,460 | 12734343 |
| 726098Amendment | Nov 1, 2011 | Nov 1, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina North #44HH | 7,619 | 12734343 |
| 727036 | Oct 31, 2011 | Oct 31, 2011 | Anadarko E&P Company LP | Stumberg Ranch #17HH | 8,900 | 12734370 |
| 727036Amendment | Oct 31, 2011 | Oct 31, 2011 | Anadarko E&P Onshore LLC | Stumberg Ranch #17HH | 8,900 | 12734370 |
| 726877 | Oct 27, 2011 | Oct 27, 2011 | Anadarko E&P Company LP | Briscoe Catarina Ranch #29HH | 8,050 | 12734368 |
| 726877Amendment | Oct 27, 2011 | Oct 27, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #29HH | 8,050 | 12734368 |
| 726874 | Oct 26, 2011 | Oct 26, 2011 | Anadarko E&P Company LP | Briscoe Catarina Ranch #28HH | 8,050 | 12734367 |
| 726874Amendment | Oct 26, 2011 | Oct 26, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #28HH | 8,050 | 12734367 |
| 726871 | Oct 26, 2011 | Oct 26, 2011 | Anadarko E&P Company LP | Briscoe Catarina Ranch #15HH | 8,050 | 12734366 |
| 726871Amendment | Oct 26, 2011 | Oct 26, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #15HH | 8,050 | 12734366 |
| 726852 | Oct 26, 2011 | Oct 26, 2011 | Anadarko E&P Company LP | Briscoe Catarina Ranch #14HH | 8,050 | 12734365 |
| 726852Amendment | Oct 26, 2011 | Oct 26, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #14HH | 8,050 | 12734365 |
| 726846 | Oct 26, 2011 | Oct 26, 2011 | Anadarko E&P Company LP | Briscoe Catarina Ranch #12HH | 8,050 | 12734364 |
| 726846Amendment | Oct 26, 2011 | Oct 26, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #12HH | 8,050 | 12734364 |
| 726836 | Oct 26, 2011 | Oct 26, 2011 | Anadarko E&P Company LP | Briscoe Catarina Ranch #11HH | 8,050 | 12734363 |
| 726836Amendment | Oct 26, 2011 | Oct 26, 2011 | Anadarko E&P Company LP | Briscoe Catarina Ranch #11HH | 7,840 | 12734363 |
| 726797 | Oct 26, 2011 | Oct 26, 2011 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #A 9HH | 9,000 | 12734362 |
| 726796 | Oct 26, 2011 | Oct 26, 2011 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #A 8HH | 9,000 | 12734361 |
| 726796Amendment | Oct 26, 2011 | Oct 26, 2011 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #A 8HH | 9,000 | 12734361 |
| 726689 | Oct 25, 2011 | Oct 25, 2011 | Shell Western E&P | Piloncillo Deep #C 1V | 13,000 | 12734360 |
| 726689Amendment | Oct 25, 2011 | Oct 25, 2011 | Shell Western E&P | Piloncillo Deep #C 1V | 16,000 | 12734360 |
| 726689Amendment | Oct 25, 2011 | Oct 25, 2011 | Shell Western E&P | Piloncillo Deep #C 1VH | 16,000 | 12734360 |
| 726660 | Oct 24, 2011 | Oct 24, 2011 | Murphy Expl. & Prod. Co. - USA | Kone #4HH | 7,518 | 12734359 |
| 726652 | Oct 24, 2011 | Oct 24, 2011 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #A 3HH | 9,000 | 12734357 |
| 726652Amendment | Oct 24, 2011 | Oct 24, 2011 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #A 3HH | 9,000 | 12734357 |
| 726651 | Oct 24, 2011 | Oct 24, 2011 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #A 1HH | 9,000 | 12734356 |
| 726651Amendment | Oct 24, 2011 | Oct 24, 2011 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #A 1HH | 9,000 | 12734356 |
| 726642 | Oct 24, 2011 | Oct 24, 2011 | Murphy Expl. & Prod. Co. - USA | Kone #3HH | 7,512 | 12734358 |
| 726603 | Oct 21, 2011 | Oct 21, 2011 | Chesapeake Operating, Inc. | Faust Dim #C 1HH | 9,000 | 12734355 |
| 726601 | Oct 21, 2011 | Oct 21, 2011 | Chesapeake Operating, Inc. | Faust Dim #D 1HH | 9,000 | 12734354 |
| 726450 | Oct 21, 2011 | Oct 21, 2011 | Chesapeake Operating, Inc. | Vesper Associates Dim B #1HH | 9,000 | 12734353 |
| 726450Amendment | Oct 21, 2011 | Oct 21, 2011 | Ineos USA Oil & Gas LLC | Vesper Associates Dim B #1HH | 9,000 | 12734353 |
| 726370 | Oct 19, 2011 | Oct 19, 2011 | Sabco Operating Company | Sabco Elaine SM #124 | 5,200 | 12734347 |
| 726370Amendment | Oct 19, 2011 | Oct 19, 2011 | Sabco Operating Company, LLC | Sabco Elaine SM #124 | 5,200 | 12734347 |
| 726334 | Oct 19, 2011 | Oct 19, 2011 | Chesapeake Operating, Inc. | Faith-San Pedro H Unit #E 1HH | 9,000 | 12734352 |
| 726333 | Oct 19, 2011 | Oct 19, 2011 | Chesapeake Operating, Inc. | Faith-San Pedro I Unit #E 1HH | 9,000 | 12734351 |
| 726327 | Oct 18, 2011 | Oct 18, 2011 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #K 4HH | 9,000 | 12734350 |
| 726327Amendment | Oct 18, 2011 | Oct 18, 2011 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #K 4HH | 9,000 | 12734350 |
| 726326 | Oct 18, 2011 | Oct 18, 2011 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #K 3HH | 9,000 | 12734348 |
| 726326Amendment | Oct 18, 2011 | Oct 18, 2011 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #K 3HH | 9,000 | 12734348 |
| 726325 | Oct 18, 2011 | Oct 18, 2011 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #K 2HH | 9,000 | 12734349 |
| 726325Amendment | Oct 18, 2011 | Oct 18, 2011 | Chesapeake Operating, Inc. | Gates 010 CHK-B TR 1 #K 2HH | 9,000 | 12734349 |
| 726286 | Oct 18, 2011 | Oct 18, 2011 | Lewis Petro Properties, Inc. | Cotulla #8HH | 17,000 | 12734346 |
| 726286Amendment | Oct 18, 2011 | Oct 18, 2011 | Lewis Petro Properties, Inc. | Cotulla #8HH | 17,000 | 12734346 |
| 726099 | Oct 13, 2011 | Oct 13, 2011 | Chesapeake Operating, Inc. | Blakeway Unit C Dim #1HH | 9,000 | 12734345 |
| 726099Amendment | Oct 13, 2011 | Oct 13, 2011 | Chesapeake Operating, Inc. | Blakeway Unit C Dim #1HH | 9,000 | 12734345 |
| 726084 | Oct 13, 2011 | Oct 13, 2011 | Lewis Petro Properties, Inc. | Cotulla #9HH | 17,000 | 12734342 |
| 726084Amendment | Oct 13, 2011 | Oct 13, 2011 | Lewis Petro Properties, Inc. | Cotulla #9HH | 17,000 | 12734342 |
| 726052 | Oct 13, 2011 | Oct 13, 2011 | Chesapeake Operating, Inc. | Faust Dim #E 1HH | 9,000 | 12734341 |
| 726049 | Oct 13, 2011 | Oct 13, 2011 | Anadarko E&P Company LP | Briscoe Catarina West #29HH | 8,800 | 12734339 |
| 726049Amendment | Oct 13, 2011 | Oct 13, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina West #29HH | 8,800 | 12734339 |
| 726048 | Oct 13, 2011 | Oct 13, 2011 | Anadarko E&P Company LP | Briscoe Catarina West #28HH | 8,800 | 12734340 |
| 726048Amendment | Oct 13, 2011 | Oct 13, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina West #28HH | 8,800 | 12734340 |
| 726047 | Oct 13, 2011 | Oct 13, 2011 | Anadarko E&P Company LP | Briscoe Catarina West #27HH | 8,800 | 12734338 |