| 734069 | Mar 1, 2012 | Mar 1, 2012 | Devon Energy Production Co, L.P. | Joshua Barnes #1HH | 9,000 | 49737412 |
| 734069Amendment | Mar 1, 2012 | Mar 1, 2012 | Devon Energy Production Co, L.P. | Joshua Barnes #1HH | 9,000 | 49737412 |
| 734084 | Feb 28, 2012 | Feb 28, 2012 | Devon Energy Production Co, L.P. | Raney Unit #1HH | 9,000 | 49737413 |
| 731379 | Feb 23, 2012 | Feb 23, 2012 | Burlington Resources O & G Co LP | Rock Ranch E Unit #10HH | 9,000 | 49737403 |
| 731377 | Feb 23, 2012 | Feb 23, 2012 | Burlington Resources O & G Co LP | Rock Ranch G Unit #13HH | 9,000 | 49737402 |
| 733546 | Feb 22, 2012 | Feb 22, 2012 | Aruba Petroleum, Inc. | Whatley Unit #2HH | 9,000 | 49737411 |
| 731370 | Feb 22, 2012 | Feb 22, 2012 | Burlington Resources O & G Co LP | Rock Ranch G Unit #12HH | 9,000 | 49737400 |
| 733250 | Feb 21, 2012 | Feb 21, 2012 | Aruba Petroleum, Inc. | Read Unit #2HH | 9,000 | 49737410 |
| 733250Amendment | Feb 21, 2012 | Feb 21, 2012 | Aruba Petroleum, Inc. | Read Unit #2HAH | 9,000 | 49737410 |
| 731280 | Feb 21, 2012 | Feb 21, 2012 | Burlington Resources O & G Co LP | Decatur Ranch H Unit #8HH | 9,000 | 49737399 |
| 731280Amendment | Feb 21, 2012 | Feb 21, 2012 | Burlington Resources O & G Co LP | Decatur Ranch H Unit #8HH | 9,000 | 49737399 |
| 733523 | Feb 13, 2012 | Feb 13, 2012 | Aruba Petroleum, Inc. | Whatley Unit #1HH | 9,000 | 49737409 |
| 732676 | Feb 10, 2012 | Feb 10, 2012 | Devon Energy Production Co, L.P. | Wilson-Boyd Townsite (SA) #2HH | 9,000 | 49737407 |
| 732676Amendment | Feb 10, 2012 | Feb 10, 2012 | Devon Energy Production Co, L.P. | Wilson-Boyd Townsite (SA) #2HH | 9,000 | 49737407 |
| 732659 | Feb 10, 2012 | Feb 10, 2012 | Devon Energy Production Co, L.P. | Wilson-Boyd Townsite (SA) #1HH | 9,000 | 49737405 |
| 732659Amendment | Feb 10, 2012 | Feb 10, 2012 | Devon Energy Production Co, L.P. | Wilson-Boyd Townsite (SA) #1HH | 9,000 | 49737405 |
| 732904 | Feb 8, 2012 | Feb 8, 2012 | Aruba Petroleum, Inc. | Read Unit #1HH | 9,000 | 49737408 |
| 732661 | Feb 8, 2012 | Feb 8, 2012 | Enervest Operating, L.L.C. | Enis #2HH | 9,000 | 49737406 |
| 732661Amendment | Feb 8, 2012 | Feb 8, 2012 | Enervest Operating, L.L.C. | Enis #2HH | 9,000 | 49737406 |
| 731560 | Feb 1, 2012 | Feb 1, 2012 | Eagleridge Operating, LLC | RSK-Star #4HH | 7,650 | 49735364 |
| 731427 | Jan 26, 2012 | Jan 26, 2012 | Devon Energy Production Co, L.P. | Wcco 7 - H.S. Jones #1HH | 9,000 | 49737404 |
| 731371 | Jan 25, 2012 | Jan 25, 2012 | Devon Energy Production Co, L.P. | Wcco 7 - J.T. Meadows #2HH | 9,000 | 49737401 |
| 731545 | Jan 23, 2012 | Jan 23, 2012 | Eagleridge Operating, LLC | RSK-Star #2HH | 7,650 | 49735059 |
| 731222 | Jan 20, 2012 | Jan 20, 2012 | Burlington Resources O & G Co LP | Decatur Ranch G Unit #7HH | 9,000 | 49737398 |
| 731222Amendment | Jan 20, 2012 | Jan 20, 2012 | Burlington Resources O & G Co LP | Decatur Ranch G Unit #7HH | 9,000 | 49737398 |
| 730400 | Jan 6, 2012 | Jan 6, 2012 | Enervest Operating, L.L.C. | T.R.W.D. #B 12H | 9,000 | 49737395 |
| 730643 | Jan 3, 2012 | Jan 3, 2012 | Enervest Operating, L.L.C. | T.R.W.D. #B 11H | 9,000 | 49737397 |
| 730640 | Jan 3, 2012 | Jan 3, 2012 | Enervest Operating, L.L.C. | T.R.W.D. #A 7H | 9,000 | 49737396 |
| 730364 | Dec 22, 2011 | Dec 22, 2011 | Pioneer Natural Res. USA, Inc. | CGH Unit #2HH | 9,000 | 49737394 |
| 730362 | Dec 22, 2011 | Dec 22, 2011 | Pioneer Natural Res. USA, Inc. | CGH Unit #1HH | 9,000 | 49737393 |
| 729908 | Dec 19, 2011 | Dec 19, 2011 | Aruba Petroleum, Inc. | Pinkerton-Stephens Unit #3HH | 9,000 | 49737392 |
| 728458 | Nov 28, 2011 | Nov 28, 2011 | McCutchin Petroleum Corporation | Cato Unit #1HH | 9,000 | 49737391 |
| 728130 | Nov 22, 2011 | Nov 22, 2011 | Burlington Resources O & G Co LP | Forman #35HH | 9,000 | 49737390 |
| 728551 | Nov 21, 2011 | Nov 21, 2011 | Aruba Petroleum, Inc. | Pinkerton-Stephens Unit #2HH | 9,000 | 49737388 |
| 728474 | Nov 21, 2011 | Nov 21, 2011 | Aruba Petroleum, Inc. | Pinkerton-Stephens Unit #1HH | 9,000 | 49737389 |
| 728474Amendment | Nov 21, 2011 | Nov 21, 2011 | Aruba Petroleum, Inc. | Pinkerton-Stephens Unit #1HH | 9,000 | 49737389 |
| 727719 | Nov 9, 2011 | Nov 9, 2011 | Devon Energy Production Co, L.P. | Acola C-Acola a (SA) 'A' #2HH | 9,000 | 49737387 |
| 727713 | Nov 9, 2011 | Nov 9, 2011 | Devon Energy Production Co, L.P. | Acola C-Acola a (SA) 'A' #1HH | 9,000 | 49737386 |
| 727677 | Nov 9, 2011 | Nov 9, 2011 | Devon Energy Production Co, L.P. | Acola 'B'-Acola 'a' (SA) #1HH | 9,000 | 49737385 |
| 727676 | Nov 9, 2011 | Nov 9, 2011 | Devon Energy Production Co, L.P. | Acola-Acola'a' (SA) #1HH | 9,000 | 49737384 |
| 727663 | Nov 9, 2011 | Nov 9, 2011 | Lakota Energy, Ltd. | Musgrove-Golaz Unit #1HH | 7,500 | 49737383 |
| 727535 | Nov 7, 2011 | Nov 7, 2011 | Devon Energy Production Co, L.P. | W. D. Johnson 'B' #44HH | 9,000 | 49737381 |
| 727521 | Nov 7, 2011 | Nov 7, 2011 | Devon Energy Production Co, L.P. | W. D. Johnson 'B' #43HH | 9,000 | 49737382 |
| 727195 | Nov 4, 2011 | Nov 4, 2011 | Glen D. Gonzenbach, LLC | Crick #1 | 6,500 | 49737380 |
| 726637 | Oct 24, 2011 | Oct 24, 2011 | Devon Energy Production Co, L.P. | Guy Horner #1HH | 9,000 | 49737379 |
| 726069 | Oct 19, 2011 | Oct 19, 2011 | Devon Energy Production Co, L.P. | A. B. Glass #1HH | 9,000 | 49737378 |
| 726074 | Oct 17, 2011 | Oct 17, 2011 | Devon Energy Production Co, L.P. | Forrest Lindsay 'a' GU #1HH | 9,000 | 49737377 |
| 725713 | Oct 14, 2011 | Oct 14, 2011 | Aruba Petroleum, Inc. | Busey-Gast Unit #7HH | 9,000 | 49737376 |
| 725490 | Oct 4, 2011 | Oct 4, 2011 | Braden Exploration, LLC | B. Frye Unit #1HH | 9,000 | 49737375 |
| 725490Amendment | Oct 4, 2011 | Oct 4, 2011 | Enervest Operating, L.L.C. | B. Frye Unit #1HH | 9,000 | 49737375 |
| 725490Amendment | Oct 4, 2011 | Oct 4, 2011 | Enervest Operating, L.L.C. | B. Frye Unit #1HH | 9,000 | 49737375 |
| 725088 | Oct 4, 2011 | Oct 4, 2011 | Burlington Resources O & G Co LP | Rock Ranch C Unit #1HH | 9,000 | 49737373 |
| 725097 | Oct 3, 2011 | Oct 3, 2011 | Burlington Resources O & G Co LP | Rock Ranch D Unit #2HH | 9,000 | 49737374 |
| 725263 | Sep 30, 2011 | Sep 30, 2011 | Braden Exploration, LLC | Hammond Unit #1HH | 9,000 | 49737372 |
| 725263Amendment | Sep 30, 2011 | Sep 30, 2011 | Enervest Operating, L.L.C. | Hammond Unit #1HH | 9,000 | 49737372 |
| 725263Amendment | Sep 30, 2011 | Sep 30, 2011 | Enervest Operating, L.L.C. | Hammond Unit #1HH | 9,000 | 49737372 |
| 724798 | Sep 30, 2011 | Sep 30, 2011 | Burlington Resources O & G Co LP | Rock Ranch #16HH | 9,000 | 49737371 |
| 724973 | Sep 27, 2011 | Sep 27, 2011 | Braden Exploration, LLC | Czewski a Unit #1HH | 9,000 | 49737370 |
| 724973Amendment | Sep 27, 2011 | Sep 27, 2011 | Enervest Operating, L.L.C. | Czewski a Unit #1HH | 9,000 | 49737370 |
| 724970 | Sep 27, 2011 | Sep 27, 2011 | Braden Exploration, LLC | Czewski B Unit #1HH | 9,000 | 49737369 |
| 724970Amendment | Sep 27, 2011 | Sep 27, 2011 | Enervest Operating, L.L.C. | Czewski B Unit #1HH | 9,000 | 49737369 |
| 724477 | Sep 21, 2011 | Sep 21, 2011 | Vantage Fort Worth Energy LLC | Gardner West #4HH | 9,000 | 49737368 |
| 724386 | Sep 20, 2011 | Sep 20, 2011 | Braden Exploration, LLC | Hodges a Unit #1HH | 9,000 | 49737367 |
| 724386Amendment | Sep 20, 2011 | Sep 20, 2011 | Enervest Operating, L.L.C. | Hodges a Unit #1HH | 9,000 | 49737367 |
| 723800 | Sep 19, 2011 | Sep 19, 2011 | Burlington Resources O & G Co LP | Tarsus #1HH | 9,000 | 49737366 |
| 723714 | Sep 15, 2011 | Sep 15, 2011 | Pioneer Natural Res. USA, Inc. | Methodist Home Unit #4HH | 9,000 | 49737365 |
| 723714Amendment | Sep 15, 2011 | Sep 15, 2011 | Pioneer Natural Res. USA, Inc. | Methodist Home Unit #4HH | 9,000 | 49737365 |
| 723701 | Sep 15, 2011 | Sep 15, 2011 | Burlington Resources O & G Co LP | Forsythe Frisbie Unit #1HH | 9,000 | 49737364 |
| 723693 | Sep 15, 2011 | Sep 15, 2011 | Pioneer Natural Res. USA, Inc. | Methodist Home Unit #3HH | 9,000 | 49737363 |
| 723685 | Sep 15, 2011 | Sep 15, 2011 | Pioneer Natural Res. USA, Inc. | Methodist Home Unit #2HH | 9,000 | 49737362 |
| 723685Amendment | Sep 15, 2011 | Sep 15, 2011 | Pioneer Natural Res. USA, Inc. | Methodist Home Unit #2HH | 9,000 | 49737362 |
| 723007 | Sep 1, 2011 | Sep 1, 2011 | Devon Energy Production Co, L.P. | Wcco 6 - Louis Engler #1HH | 9,000 | 49737360 |
| 723001 | Sep 1, 2011 | Sep 1, 2011 | Devon Energy Production Co, L.P. | Wcco 6 - Arthur Compton #3HH | 9,000 | 49737359 |
| 722980 | Aug 31, 2011 | Aug 31, 2011 | Devon Energy Production Co, L.P. | Wcco 6 - Arthur Compton #2HH | 9,000 | 49737358 |
| 722729 | Aug 26, 2011 | Aug 26, 2011 | Burlington Resources O & G Co LP | C. E. Holt Unit #3HH | 9,000 | 49737357 |
| 722727 | Aug 26, 2011 | Aug 26, 2011 | Burlington Resources O & G Co LP | C. E. Holt Unit #2HH | 9,000 | 49737356 |
| 722702 | Aug 26, 2011 | Aug 26, 2011 | Devon Energy Production Co, L.P. | Wcco 6 - Arthur Compton #1HH | 9,000 | 49737355 |
| 722359 | Aug 24, 2011 | Aug 24, 2011 | Burlington Resources O & G Co LP | Rock Ranch #15HH | 9,000 | 49737351 |
| 722353 | Aug 24, 2011 | Aug 24, 2011 | Burlington Resources O & G Co LP | Rock Ranch #14HH | 9,000 | 49737350 |
| 722658 | Aug 23, 2011 | Aug 23, 2011 | Pioneer Natural Res. USA, Inc. | Goodrich Unit B #4HH | 9,000 | 49737353 |
| 722656 | Aug 23, 2011 | Aug 23, 2011 | Pioneer Natural Res. USA, Inc. | Goodrich Unit B #3HH | 9,000 | 49737352 |
| 722655 | Aug 23, 2011 | Aug 23, 2011 | Pioneer Natural Res. USA, Inc. | Goodrich Unit A #2HH | 9,000 | 49737354 |
| 722201 | Aug 16, 2011 | Aug 16, 2011 | Vantage Fort Worth Energy LLC | Gardner #6HH | 9,000 | 49737349 |
| 722201Amendment | Aug 16, 2011 | Aug 16, 2011 | Vantage Fort Worth Energy LLC | Gardner #6HH | 9,000 | 49737349 |
| 721051 | Aug 15, 2011 | Aug 15, 2011 | Burlington Resources O & G Co LP | Forman F Unit #1HH | 9,000 | 49737335 |
| 721051Amendment | Aug 15, 2011 | Aug 15, 2011 | Burlington Resources O & G Co LP | Forman F Unit #1HH | 9,000 | 49737335 |
| 721051Amendment | Aug 15, 2011 | Aug 15, 2011 | Burlington Resources O & G Co LP | Forman F Unit #1HH | 9,000 | 49737335 |
| 722155 | Aug 12, 2011 | Aug 12, 2011 | McCutchin Petroleum Corporation | Denney #1HH | 9,000 | 49737348 |
| 722090 | Aug 12, 2011 | Aug 12, 2011 | Vantage Fort Worth Energy LLC | Gardner West #5HH | 9,000 | 49737347 |
| 722090Amendment | Aug 12, 2011 | Aug 12, 2011 | Vantage Fort Worth Energy LLC | Gardner West #5HH | 9,000 | 49737347 |
| 721104 | Aug 11, 2011 | Aug 11, 2011 | Burlington Resources O & G Co LP | Forman F Unit #2HH | 9,000 | 49737346 |
| 721104Amendment | Aug 11, 2011 | Aug 11, 2011 | Burlington Resources O & G Co LP | Forman F Unit #2HH | 9,000 | 49737346 |
| 721104Amendment | Aug 11, 2011 | Aug 11, 2011 | Burlington Resources O & G Co LP | Forman F Unit #2HH | 9,000 | 49737346 |
| 721501 | Aug 9, 2011 | Aug 9, 2011 | Devon Energy Production Co, L.P. | Smith, J.W. (Oil) #1 | 4,430 | 49701294 |
| 721164 | Aug 3, 2011 | Aug 3, 2011 | Lakota Energy, Ltd. | Bryan #5HH | 8,000 | 49737345 |
| 721023 | Aug 2, 2011 | Aug 2, 2011 | Lakota Energy, Ltd. | Bryan-Mann #1HH | 8,000 | 49737344 |
| 720992 | Aug 2, 2011 | Aug 2, 2011 | Devon Energy Production Co, L.P. | Mize, R. T. Unit #1HH | 9,000 | 49737343 |
| 720735 | Aug 2, 2011 | Aug 2, 2011 | Devon Energy Production Co, L.P. | Young-Bentley (SA) 'A' #1HH | 9,000 | 49737342 |
| 720753 | Aug 1, 2011 | Aug 1, 2011 | Devon Energy Production Co, L.P. | Young A-Pavillard a (SA) 'A' #1HH | 9,000 | 49737341 |
| 720706 | Aug 1, 2011 | Aug 1, 2011 | Devon Energy Production Co, L.P. | Young-Perkins (Deep) (SA) 'A' #1HH | 9,000 | 49737340 |