| 730520 | Dec 28, 2011 | Dec 28, 2011 | Chesapeake Operating, Inc. | Henrichson Unit E Dim #3HH | 9,000 | 12734467 |
| 730542 | Dec 27, 2011 | Dec 27, 2011 | Anadarko E&P Company LP | South Spur State #7HH | 7,900 | 12734466 |
| 730542Amendment | Dec 27, 2011 | Dec 27, 2011 | Anadarko E&P Onshore LLC | South Spur State #7HH | 7,900 | 12734466 |
| 730534 | Dec 27, 2011 | Dec 27, 2011 | Anadarko E&P Company LP | South Spur State #6HH | 7,900 | 12734464 |
| 730534Amendment | Dec 27, 2011 | Dec 27, 2011 | Anadarko E&P Onshore LLC | South Spur State #6HH | 7,900 | 12734464 |
| 730531 | Dec 27, 2011 | Dec 27, 2011 | Anadarko E&P Company LP | South Spur State #5HH | 7,900 | 12734465 |
| 730531Amendment | Dec 27, 2011 | Dec 27, 2011 | Anadarko E&P Onshore LLC | South Spur State #5HH | 7,900 | 12734465 |
| 730317 | Dec 22, 2011 | Dec 22, 2011 | Anadarko E&P Company LP | Briscoe Catarina South #15HH | 8,600 | 12734460 |
| 730317Amendment | Dec 22, 2011 | Dec 22, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina South #15HH | 8,600 | 12734460 |
| 730309 | Dec 22, 2011 | Dec 22, 2011 | Anadarko E&P Company LP | Briscoe Catarina South #14HH | 8,600 | 12734458 |
| 730309Amendment | Dec 22, 2011 | Dec 22, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina South #14HH | 8,600 | 12734458 |
| 730306 | Dec 22, 2011 | Dec 22, 2011 | Anadarko E&P Company LP | Briscoe Catarina South #13HH | 8,600 | 12734459 |
| 730306Amendment | Dec 22, 2011 | Dec 22, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina South #13HH | 8,600 | 12734459 |
| 730297 | Dec 22, 2011 | Dec 22, 2011 | Anadarko E&P Company LP | Briscoe Catarina South #12HH | 8,600 | 12734457 |
| 730297Amendment | Dec 22, 2011 | Dec 22, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina South #12HH | 8,600 | 12734457 |
| 730293 | Dec 22, 2011 | Dec 22, 2011 | Anadarko E&P Company LP | Briscoe Catarina South #11HH | 8,600 | 12734456 |
| 730293Amendment | Dec 22, 2011 | Dec 22, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina South #11HH | 8,600 | 12734456 |
| 730290 | Dec 21, 2011 | Dec 21, 2011 | Anadarko E&P Company LP | Briscoe Catarina South #10HH | 8,600 | 12734455 |
| 730290Amendment | Dec 21, 2011 | Dec 21, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina South #10HH | 8,600 | 12734455 |
| 730110 | Dec 20, 2011 | Dec 20, 2011 | Newfield Exploration Company | Pritchett #3703HH | 7,700 | 12734454 |
| 729945 | Dec 16, 2011 | Dec 16, 2011 | Anadarko E&P Company LP | South Spur Ranch #8HH | 7,900 | 12734453 |
| 729945Amendment | Dec 16, 2011 | Dec 16, 2011 | Anadarko E&P Onshore LLC | South Spur Unit A #3HH | 7,900 | 12734453 |
| 728614 | Dec 14, 2011 | Dec 14, 2011 | El Paso E & P Company, L. P. | Ritchie Farms #16HH | 9,600 | 12734420 |
| 728614Amendment | Dec 14, 2011 | Dec 14, 2011 | El Paso E & P Company, L. P. | Ritchie Farms #16HH | 9,600 | 12734420 |
| 728614Amendment | Dec 14, 2011 | Dec 14, 2011 | El Paso E & P Company, L. P. | Ritchie Farms #16HH | 9,600 | 12734420 |
| 729349 | Dec 13, 2011 | Dec 13, 2011 | Anadarko E&P Company LP | Briscoe Cochina West Ranch #27HH | 8,000 | 12734452 |
| 729349Amendment | Dec 13, 2011 | Dec 13, 2011 | Anadarko E&P Onshore LLC | Briscoe Cochina West Ranch #27HH | 8,000 | 12734452 |
| 729333 | Dec 13, 2011 | Dec 13, 2011 | Anadarko E&P Company LP | Briscoe Cochina West Ranch #26HH | 8,000 | 12734451 |
| 729333Amendment | Dec 13, 2011 | Dec 13, 2011 | Anadarko E&P Onshore LLC | Briscoe Cochina West Ranch #26HH | 8,000 | 12734451 |
| 729329 | Dec 13, 2011 | Dec 13, 2011 | Anadarko E&P Company LP | Briscoe Cochina West Ranch #25HH | 8,000 | 12734450 |
| 729329Amendment | Dec 13, 2011 | Dec 13, 2011 | Anadarko E&P Onshore LLC | Briscoe Cochina West Ranch #25HH | 8,000 | 12734450 |
| 729321 | Dec 13, 2011 | Dec 13, 2011 | Anadarko E&P Company LP | Briscoe Cochina West Ranch #24HH | 8,000 | 12734449 |
| 729321Amendment | Dec 13, 2011 | Dec 13, 2011 | Anadarko E&P Onshore LLC | Briscoe Cochina West Ranch #24HH | 8,000 | 12734449 |
| 729320 | Dec 13, 2011 | Dec 13, 2011 | Anadarko E&P Company LP | Briscoe Cochina West Ranch #23HH | 8,000 | 12734447 |
| 729320Amendment | Dec 13, 2011 | Dec 13, 2011 | Anadarko E&P Onshore LLC | Briscoe Cochina West Ranch #23HH | 8,000 | 12734447 |
| 729319 | Dec 13, 2011 | Dec 13, 2011 | Anadarko E&P Company LP | Briscoe Cochina West Ranch #22HH | 8,000 | 12734445 |
| 729319Amendment | Dec 13, 2011 | Dec 13, 2011 | Anadarko E&P Onshore LLC | Briscoe Cochina West Ranch #22HH | 8,000 | 12734445 |
| 729639 | Dec 12, 2011 | Dec 12, 2011 | Anadarko E&P Company LP | Briscoe Catarina Ranch #45HH | 9,180 | 12734448 |
| 729639Amendment | Dec 12, 2011 | Dec 12, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #45HH | 9,180 | 12734448 |
| 729638 | Dec 12, 2011 | Dec 12, 2011 | Anadarko E&P Company LP | Briscoe Catarina Ranch #44HH | 9,180 | 12734446 |
| 729638Amendment | Dec 12, 2011 | Dec 12, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #44HH | 9,180 | 12734446 |
| 729637 | Dec 12, 2011 | Dec 12, 2011 | Anadarko E&P Company LP | Briscoe Catarina Ranch #43HH | 9,180 | 12734444 |
| 729637Amendment | Dec 12, 2011 | Dec 12, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #43HH | 9,180 | 12734444 |
| 729620 | Dec 12, 2011 | Dec 12, 2011 | Anadarko E&P Company LP | Briscoe Catarina Ranch #42HH | 9,180 | 12734442 |
| 729620Amendment | Dec 12, 2011 | Dec 12, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #42HH | 9,180 | 12734442 |
| 729618 | Dec 12, 2011 | Dec 12, 2011 | Anadarko E&P Company LP | Briscoe Catarina Ranch #41HH | 9,180 | 12734443 |
| 729618Amendment | Dec 12, 2011 | Dec 12, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #41HH | 9,180 | 12734443 |
| 729615 | Dec 12, 2011 | Dec 12, 2011 | Anadarko E&P Company LP | Briscoe Catarina Ranch #40HH | 9,180 | 12734441 |
| 729615Amendment | Dec 12, 2011 | Dec 12, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #40HH | 9,180 | 12734441 |
| 729572 | Dec 12, 2011 | Dec 12, 2011 | Chesapeake Operating, Inc. | Faith Bonita H Unit #M 1HH | 9,000 | 12734438 |
| 729571 | Dec 12, 2011 | Dec 12, 2011 | Anadarko E&P Company LP | Briscoe Catarina Ranch #39HH | 9,100 | 12734440 |
| 729571Amendment | Dec 12, 2011 | Dec 12, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #39HH | 9,100 | 12734440 |
| 729569 | Dec 12, 2011 | Dec 12, 2011 | Chesapeake Operating, Inc. | Faith Bonita G Unit #M 1HH | 9,000 | 12734437 |
| 729565 | Dec 12, 2011 | Dec 12, 2011 | Anadarko E&P Company LP | Briscoe Catarina Ranch #38HH | 9,100 | 12734439 |
| 729565Amendment | Dec 12, 2011 | Dec 12, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #38HH | 9,100 | 12734439 |
| 729564 | Dec 12, 2011 | Dec 12, 2011 | Anadarko E&P Company LP | Briscoe Catarina Ranch #37HH | 9,100 | 12734434 |
| 729564Amendment | Dec 12, 2011 | Dec 12, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #37HH | 9,100 | 12734434 |
| 729557 | Dec 12, 2011 | Dec 12, 2011 | Anadarko E&P Company LP | Briscoe Catarina Ranch #36HH | 9,100 | 12734436 |
| 729557Amendment | Dec 12, 2011 | Dec 12, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #36HH | 9,100 | 12734436 |
| 729555 | Dec 12, 2011 | Dec 12, 2011 | Anadarko E&P Company LP | Briscoe Catarina Ranch #35HH | 9,100 | 12734433 |
| 729554 | Dec 12, 2011 | Dec 12, 2011 | Anadarko E&P Company LP | Briscoe Catarina Ranch #34HH | 9,100 | 12734432 |
| 729554Amendment | Dec 12, 2011 | Dec 12, 2011 | Anadarko E&P Onshore LLC | Briscoe Catarina Ranch #34HH | 9,100 | 12734432 |
| 729312 | Dec 7, 2011 | Dec 7, 2011 | Murphy Expl. & Prod. Co. - USA | Kone #8HH | 7,349 | 12734430 |
| 729311 | Dec 7, 2011 | Dec 7, 2011 | Murphy Expl. & Prod. Co. - USA | Kone #6HH | 7,325 | 12734429 |
| 729310 | Dec 7, 2011 | Dec 7, 2011 | Murphy Expl. & Prod. Co. - USA | Kone #7HH | 7,349 | 12734428 |
| 729300 | Dec 7, 2011 | Dec 7, 2011 | Murphy Expl. & Prod. Co. - USA | Kone #5HH | 7,325 | 12734427 |
| 720777 | Dec 6, 2011 | Dec 6, 2011 | Chesapeake Operating, Inc. | Bohannan Dim #B 1HH | 12,000 | 12734405 |
| 729185 | Dec 5, 2011 | Dec 5, 2011 | Anadarko E&P Company LP | Rogers Dentonio 16 Unit #2HH | 7,700 | 12734426 |
| 729185Amendment | Dec 5, 2011 | Dec 5, 2011 | Anadarko E&P Onshore LLC | Rogers Dentonio 16 Unit #2HH | 7,700 | 12734426 |
| 729183 | Dec 5, 2011 | Dec 5, 2011 | Anadarko E&P Company LP | Rogers Dentonio 16 Unit #1HH | 7,700 | 12734425 |
| 729183Amendment | Dec 5, 2011 | Dec 5, 2011 | Anadarko E&P Company LP | Rogers Dentonio 16 Unit #1HH | 6,900 | 12734425 |
| 728976 | Dec 2, 2011 | Dec 2, 2011 | Chesapeake Operating, Inc. | Gibson Dim #G 8HH | 9,000 | 12734423 |
| 728976Amendment | Dec 2, 2011 | Dec 2, 2011 | Chesapeake Operating, Inc. | Gibson Dim #G 8HH | 9,000 | 12734423 |
| 728617 | Dec 2, 2011 | Dec 2, 2011 | El Paso E & P Company, L. P. | Ritchie Farms #17HH | 9,600 | 12734424 |
| 728617Amendment | Dec 2, 2011 | Dec 2, 2011 | El Paso E & P Company, L. P. | Ritchie Farms #17HH | 9,600 | 12734424 |
| 728617Amendment | Dec 2, 2011 | Dec 2, 2011 | El Paso E & P Company, L. P. | Ritchie Farms #17HH | 9,600 | 12734424 |
| 728986 | Dec 1, 2011 | Dec 1, 2011 | Chesapeake Operating, Inc. | Valley Wells #I 8HH | 9,000 | 12734422 |
| 728882 | Nov 29, 2011 | Nov 29, 2011 | Chesapeake Operating, Inc. | Martinez Dim #E 3HH | 9,000 | 12734416 |
| 728878 | Nov 29, 2011 | Nov 29, 2011 | Chesapeake Operating, Inc. | Martinez Dim #E 5HH | 9,000 | 12734415 |
| 728876 | Nov 29, 2011 | Nov 29, 2011 | Chesapeake Operating, Inc. | Martinez Dim #E 2HH | 9,000 | 12734414 |
| 728843 | Nov 29, 2011 | Nov 29, 2011 | Chesapeake Operating, Inc. | Faith San Pedro B Unit #I 1HH | 9,000 | 12734418 |
| 728777 | Nov 29, 2011 | Nov 29, 2011 | Chesapeake Operating, Inc. | Martinez Dim #C 2HH | 9,000 | 12734413 |
| 728776 | Nov 29, 2011 | Nov 29, 2011 | Chesapeake Operating, Inc. | Anderson-Stone Dim #F 2HH | 9,000 | 12734412 |
| 728727 | Nov 28, 2011 | Nov 28, 2011 | Chesapeake Operating, Inc. | Valley Wells #I 10HH | 9,000 | 12734411 |
| 728606 | Nov 22, 2011 | Nov 22, 2011 | Anadarko E&P Company LP | Diamond H Ranch #8HH | 8,700 | 12734410 |
| 728606Amendment | Nov 22, 2011 | Nov 22, 2011 | Anadarko E&P Onshore LLC | Diamond H Ranch #8HH | 8,700 | 12734410 |
| 728598 | Nov 22, 2011 | Nov 22, 2011 | Anadarko E&P Company LP | Diamond H Ranch #7HH | 8,700 | 12734408 |
| 728598Amendment | Nov 22, 2011 | Nov 22, 2011 | Anadarko E&P Onshore LLC | Diamond H Ranch #7HH | 8,700 | 12734408 |
| 728578 | Nov 22, 2011 | Nov 22, 2011 | Newfield Exploration Company | Cmww B #3703HH | 7,500 | 12734407 |
| 728301 | Nov 21, 2011 | Nov 21, 2011 | Anadarko E&P Company LP | Diamond H State #8HH | 8,700 | 12734403 |
| 728301Amendment | Nov 21, 2011 | Nov 21, 2011 | Anadarko E&P Onshore LLC | Diamond H State #8HH | 7,527 | 12734403 |
| 728273 | Nov 21, 2011 | Nov 21, 2011 | Anadarko E&P Company LP | Diamond H State #7HH | 8,700 | 12734395 |
| 728273Amendment | Nov 21, 2011 | Nov 21, 2011 | Anadarko E&P Onshore LLC | Diamond H State #7HH | 7,526 | 12734395 |
| 728402 | Nov 19, 2011 | Nov 19, 2011 | Chesapeake Operating, Inc. | Big Wells South Dim #J 1HH | 9,000 | 12734406 |
| 728292 | Nov 18, 2011 | Nov 18, 2011 | Chesapeake Operating, Inc. | Anderson-Stone Dim #M 5HH | 9,000 | 12734401 |
| 728291 | Nov 18, 2011 | Nov 18, 2011 | Chesapeake Operating, Inc. | Anderson-Stone Dim #M 2HH | 9,000 | 12734400 |
| 728290 | Nov 18, 2011 | Nov 18, 2011 | Chesapeake Operating, Inc. | Anderson-Stone Dim #D 4HH | 9,000 | 12734399 |
| 728288 | Nov 18, 2011 | Nov 18, 2011 | Chesapeake Operating, Inc. | Anderson-Stone Dim #C 2HH | 9,000 | 12734398 |
| 728286 | Nov 18, 2011 | Nov 18, 2011 | Chesapeake Operating, Inc. | Anderson-Stone Dim #B 1HH | 9,000 | 12734397 |
| 728283 | Nov 18, 2011 | Nov 18, 2011 | Anadarko E&P Company LP | La Bandera Ranch #8HH | 7,400 | 12734402 |