| 2012-02-07 | 732591 | 42-483-33403 | ZYBACH #6010H | CHESAPEAKE OPERATING, INC. | DRILL | 18,000 | Y |
| 2012-02-07 | 732591 | 42-483-33403 | ZYBACH #6010H | CHESAPEAKE OPERATING, INC. | DRILL | 18,000 | Y |
| 2012-02-07 | 732591 | 42-483-33403 | ZYBACH #6010H | CHESAPEAKE OPERATING, INC. | DRILL | 18,000 | Y |
| 2012-02-07 | 732591 | 42-483-33403 | ZYBACH #6010H | CHESAPEAKE OPERATING, INC. | DRILL | 18,000 | Y |
| 2012-02-07 | 732588 | 42-483-33402 | ATHERTON 69 SL #28H | CHESAPEAKE OPERATING, INC. | DRILL | 18,000 | Y |
| 2012-02-07 | 732586 | 42-483-33401 | ATHERTON 69 SL #20H | CHESAPEAKE OPERATING, INC. | DRILL | 18,000 | Y |
| 2012-02-07 | 732583 | 42-483-33404 | MILES GAS UNIT #3H | CHESAPEAKE OPERATING, INC. | DRILL | 14,000 | Y |
| 2012-02-06 | 732493 | 42-483-33400 | BRITT 38 SL #6H | LINN OPERATING, INC. | DRILL | 13,197 | Y |
| 2012-02-06 | 732487 | 42-483-33399 | BRITT 38 SL #5H | LINN OPERATING, INC. | DRILL | 13,155 | Y |
| 2012-02-06 | 732487 | 42-483-33399 | BRITT 38 SL #5H | LINN OPERATING, INC. | DRILL | 13,155 | Y |
| 2012-02-03 | 732460 | 42-483-33398 | MOORE 62 #5H | APACHE CORPORATION | DRILL | 14,500 | Y |
| 2012-02-03 | 732385 | 42-483-33397 | BASS-CALCOTE #4059H | SANGUINE GAS EXPLORATION, LLC | DRILL | 11,000 | Y |
| 2012-02-01 | 732256 | 42-483-33290 | DAVIS #6061H | SAMSON LONE STAR, LLC | RECOMP | 11,000 | Y |
| 2012-02-01 | 732256 | 42-483-33290 | DAVIS #6061H | SAMSON LONE STAR, LLC | RECOMP | 11,000 | Y |
| 2012-02-01 | 732234 | 42-483-33395 | BRITT 38 SL #4H | LINN OPERATING, INC. | DRILL | 13,165 | Y |
| 2012-02-01 | 732234 | 42-483-33395 | BRITT 38 SL #4H | LINN OPERATING, INC. | DRILL | 13,165 | Y |
| 2012-01-31 | 731918 | 42-483-32203 | DUKES 7 #3 | LINN OPERATING, INC. | FLD-XFR | 14,400 | |
| 2012-01-31 | 731917 | 42-483-32527 | DUKES 7 #4 | LINN OPERATING, INC. | FLD-XFR | 15,000 | |
| 2012-01-27 | 731999 | 42-483-33394 | LANCASTER #5058H | SAMSON LONE STAR, LLC | DRILL | 12,000 | Y |
| 2012-01-25 | 731892 | 42-483-33393 | RATICAR SWD #1044 | FOREST OIL CORPORATION | DRILL | 6,000 | |
| 2012-01-25 | 731829 | 42-483-33392 | MILLS RANCH #5024H | SANGUINE GAS EXPLORATION, LLC | DRILL | 12,500 | Y |
| 2012-01-25 | 731829 | 42-483-33392 | MILLS RANCH SE 24 #5024H | SANGUINE GAS EXPLORATION, LLC | DRILL | 12,500 | Y |
| 2012-01-23 | 731537 | 42-483-33388 | ZYBACH-TIPPS 12 #3H | LINN OPERATING, INC. | DRILL | 12,323 | Y |
| 2012-01-21 | 731574 | 42-483-33389 | DOBSON SL #8HC | CORDILLERA ENERGY PRTNRS III,LLC | DRILL | 13,100 | Y |
| 2012-01-20 | 731851 | 42-483-33391 | PYLE #404HA | GRANITE OPERATING COMPANY | DRILL | 11,900 | Y |
| 2012-01-20 | 731851 | 42-483-33391 | PYLE #404HA | GRANITE OPERATING COMPANY | DRILL | 11,900 | Y |
| 2012-01-20 | 731522 | 42-483-30874 | LISTER UNIT #1 | QUANTUM RESOURCES MANAGEMENT,LLC | RECOMP | 19,055 | |
| 2012-01-19 | 731492 | 42-483-33387 | DOBSON SL #7HC | CORDILLERA ENERGY PRTNRS III,LLC | DRILL | 14,900 | Y |
| 2012-01-19 | 731492 | 42-483-33387 | DOBSON SL #7HC | CORDILLERA ENERGY PRTNRS III,LLC | DRILL | 15,500 | Y |
| 2012-01-19 | 731453 | 42-483-33386 | MILES GAS UNIT #2H | CHESAPEAKE OPERATING, INC. | DRILL | 14,000 | Y |
| 2012-01-19 | 731453 | 42-483-33386 | MILES GAS UNIT #2H | CHESAPEAKE OPERATING, INC. | DRILL | 14,000 | Y |
| 2012-01-19 | 731452 | 42-483-33385 | ATHERTON SL #1016H | CHESAPEAKE OPERATING, INC. | DRILL | 16,000 | Y |
| 2012-01-19 | 731452 | 42-483-33385 | ATHERTON SL #1016H | CHESAPEAKE OPERATING, INC. | DRILL | 16,000 | Y |
| 2012-01-19 | 731269 | 42-483-33379 | MILLER SPINNEY 39 #6H | LINN OPERATING, INC. | DRILL | 13,248 | Y |
| 2012-01-19 | 731269 | 42-483-33379 | MILLER SPINNEY 39 SL #6H | LINN OPERATING, INC. | DRILL | 13,248 | Y |
| 2012-01-19 | 731266 | 42-483-33378 | MILLER SPINNEY 39 #5H | LINN OPERATING, INC. | DRILL | 13,228 | Y |
| 2012-01-19 | 731266 | 42-483-33378 | MILLER SPINNEY 39 SL #5H | LINN OPERATING, INC. | DRILL | 13,228 | Y |
| 2012-01-19 | 731263 | 42-483-33377 | MILLER SPINNEY 39 #4H | LINN OPERATING, INC. | DRILL | 13,195 | Y |
| 2012-01-19 | 731263 | 42-483-33377 | MILLER SPINNEY 39 #4H | LINN OPERATING, INC. | DRILL | 13,195 | Y |
| 2012-01-19 | 731263 | 42-483-33377 | MILLER SPINNEY 39 SL #4H | LINN OPERATING, INC. | DRILL | 13,195 | Y |
| 2012-01-18 | 731661 | 42-483-33390 | BASS-CALCOTE #5059H | SANGUINE GAS EXPLORATION, LLC | DRILL | 11,000 | Y |
| 2012-01-18 | 731376 | 42-483-33384 | BRYANT 21 SL #17H | CHESAPEAKE OPERATING, INC. | DRILL | 16,000 | Y |
| 2012-01-18 | 731305 | 42-483-33382 | PURYEAR 28 #16H | LINN OPERATING, INC. | DRILL | 11,439 | Y |
| 2012-01-18 | 731305 | 42-483-33382 | PURYEAR 28 #16H | LINN OPERATING, INC. | DRILL | 11,439 | Y |
| 2012-01-18 | 731298 | 42-483-33381 | PURYEAR 28 #15H | LINN OPERATING, INC. | DRILL | 11,405 | Y |
| 2012-01-18 | 731298 | 42-483-33381 | PURYEAR 28 #15H | LINN OPERATING, INC. | DRILL | 11,405 | Y |
| 2012-01-18 | 731286 | 42-483-33380 | PURYEAR 28 #14H | LINN OPERATING, INC. | DRILL | 11,324 | Y |
| 2012-01-18 | 731286 | 42-483-33380 | PURYEAR 28 #14H | LINN OPERATING, INC. | DRILL | 11,324 | Y |
| 2012-01-13 | 731326 | 42-483-33383 | ONA BLACK 49 SL #5H | LINN OPERATING, INC. | DRILL | 12,515 | Y |
| 2012-01-13 | 731091 | 42-483-33372 | THURMAN HORN #407H | CHESAPEAKE OPERATING, INC. | DRILL | 14,000 | Y |