| 739255 | Jun 4, 2012 | Jun 4, 2012 | Burlington Resources O & G Co LP | Smith Gentry Winder Unit #2HH | 9,000 | 49737488 |
| 739451 | May 30, 2012 | May 30, 2012 | Burlington Resources O & G Co LP | Frye Unit #3HH | 9,000 | 49737490 |
| 739784 | May 25, 2012 | May 25, 2012 | Devon Energy Production Co, L.P. | Gilbert Ensley #1HH | 9,000 | 49737471 |
| 739447 | May 25, 2012 | May 25, 2012 | Burlington Resources O & G Co LP | Frye Unit #2HH | 9,000 | 49737489 |
| 740751 | May 23, 2012 | May 23, 2012 | Enervest Operating, L.L.C. | Cheek Unit #1HH | 9,000 | 49737486 |
| 740702 | May 23, 2012 | May 23, 2012 | Legend Natural Gas IV, LP | Fletcher Unit #B 3HH | 12,000 | 49737485 |
| 740702Amendment | May 23, 2012 | May 23, 2012 | Legend Natural Gas IV, LP | Fletcher Unit #B 3HH | 12,000 | 49737485 |
| 739957 | May 23, 2012 | May 23, 2012 | Devon Energy Production Co, L.P. | D. J. Hughes GU 'A' #1HH | 9,000 | 49737472 |
| 739200 | May 23, 2012 | May 23, 2012 | Burlington Resources O & G Co LP | Smith Gentry Winder Unit #1HH | 9,000 | 49737487 |
| 738657 | May 19, 2012 | May 19, 2012 | Aruba Petroleum, Inc. | Jordan-Smith Unit #2HH | 9,000 | 49737483 |
| 740306 | May 18, 2012 | May 18, 2012 | Legend Natural Gas IV, LP | Fletcher Unit #B 2HH | 12,000 | 49737482 |
| 740306Amendment | May 18, 2012 | May 18, 2012 | Legend Natural Gas IV, LP | Fletcher Unit #B 2HH | 12,000 | 49737482 |
| 740303 | May 18, 2012 | May 18, 2012 | Legend Natural Gas IV, LP | Fletcher Unit #B 1HH | 12,000 | 49737481 |
| 740303Amendment | May 18, 2012 | May 18, 2012 | Legend Natural Gas IV, LP | Fletcher Unit #B 1HH | 12,000 | 49737481 |
| 740162 | May 17, 2012 | May 17, 2012 | Lakota Energy, Ltd. | Travis Cobb #4HH | 7,500 | 49737480 |
| 740159 | May 17, 2012 | May 17, 2012 | Lakota Energy, Ltd. | Cobb, Travis #3HH | 7,500 | 49737479 |
| 740147 | May 17, 2012 | May 17, 2012 | Legend Natural Gas IV, LP | Fletcher Unit #A 7HH | 12,000 | 49737478 |
| 740145 | May 17, 2012 | May 17, 2012 | Legend Natural Gas IV, LP | Fletcher Unit #A 5HH | 12,000 | 49737477 |
| 740141 | May 17, 2012 | May 17, 2012 | Legend Natural Gas IV, LP | Fletcher Unit #A 4HH | 12,000 | 49737476 |
| 740139 | May 17, 2012 | May 17, 2012 | Legend Natural Gas IV, LP | Fletcher Unit #A 3HH | 12,000 | 49737475 |
| 740136 | May 17, 2012 | May 17, 2012 | Legend Natural Gas IV, LP | Fletcher Unit #A 2HH | 12,000 | 49737474 |
| 738516 | May 17, 2012 | May 17, 2012 | Aruba Petroleum, Inc. | Read Unit #2HAH | 9,000 | 49737484 |
| 739771 | May 15, 2012 | May 15, 2012 | Pioneer Natural Res. USA, Inc. | Jerry Smith Unit #1HH | 9,000 | 49737473 |
| 739767 | May 14, 2012 | May 14, 2012 | Pioneer Natural Res. USA, Inc. | Witkowski Unit #3HH | 9,000 | 49737470 |
| 739525 | May 11, 2012 | May 11, 2012 | Devon Energy Production Co, L.P. | G. W. Ramsey #1HH | 9,000 | 49737469 |
| 739513 | May 11, 2012 | May 11, 2012 | Devon Energy Production Co, L.P. | G. H. Gore Unit #1HH | 9,000 | 49737468 |
| 738970 | May 7, 2012 | May 7, 2012 | Devon Energy Production Co, L.P. | McCurdy B-Hoyl (SA) 'A' #2HH | 9,000 | 49737466 |
| 738946 | May 7, 2012 | May 7, 2012 | Devon Energy Production Co, L.P. | McCurdy B-Hoyl (SA) 'A' #1HH | 9,000 | 49737465 |
| 738752 | May 4, 2012 | May 4, 2012 | Devon Energy Production Co, L.P. | Shoop C-Hampton (SA) 'A' #1HH | 9,000 | 49737463 |
| 737616 | May 4, 2012 | May 4, 2012 | Aruba Petroleum, Inc. | Moody-Atkinson Unit #2HH | 9,000 | 49737459 |
| 737616Amendment | May 4, 2012 | May 4, 2012 | Aruba Petroleum, Inc. | Moody-Atkinson Unit #2HH | 9,000 | 49737459 |
| 737616Amendment | May 4, 2012 | May 4, 2012 | Aruba Petroleum, Inc. | Moody-Atkinson Unit #2HH | 9,000 | 49737459 |
| 739819 | May 3, 2012 | May 3, 2012 | Richey, Ray Management Co., Inc. | Cocanougher-Taylor #1HH | 10,926 | 49737467 |
| 738630 | May 2, 2012 | May 2, 2012 | Aruba Petroleum, Inc. | Jordan-Smith Unit #1HH | 9,000 | 49737461 |
| 738474 | May 1, 2012 | May 1, 2012 | Enervest Operating, L.L.C. | Hirsh Gas Unit #1HH | 9,000 | 49737464 |
| 738463 | Apr 30, 2012 | Apr 30, 2012 | Richey, Ray Management Co., Inc. | O.K. Goode #1 | 6,200 | 49737462 |
| 738114 | Apr 25, 2012 | Apr 25, 2012 | XTO Energy Inc. | Vinson Fee E #14HH | 12,000 | 49737458 |
| 738114Amendment | Apr 25, 2012 | Apr 25, 2012 | XTO Energy Inc. | Vinson Fee E #14HH | 12,000 | 49737458 |
| 737958 | Apr 25, 2012 | Apr 25, 2012 | Devon Energy Production Co, L.P. | Hampton-Shoop C (SA) 'A' #1HH | 9,000 | 49737456 |
| 739009 | Apr 24, 2012 | Apr 24, 2012 | Richey, Ray Management Co., Inc. | Taylor 'F' #7HH | 8,000 | 49737460 |
| 738015 | Apr 24, 2012 | Apr 24, 2012 | Devon Energy Production Co, L.P. | Hampton-McCurdy a (SA) 'A' #1HH | 9,000 | 49737457 |
| 738015Amendment | Apr 24, 2012 | Apr 24, 2012 | Devon Energy Production Co, L.P. | Hampton-McCurdy a (SA) 'A' #1HH | 9,000 | 49737457 |
| 737165 | Apr 24, 2012 | Apr 24, 2012 | Devon Energy Production Co, L.P. | Shoop C-McCurdy B (SA) 'A' #1HH | 9,000 | 49737444 |
| 737897 | Apr 23, 2012 | Apr 23, 2012 | Devon Energy Production Co, L.P. | Wallace-Morris (SA) 'A' #1HH | 9,000 | 49737455 |
| 737785 | Apr 20, 2012 | Apr 20, 2012 | Devon Energy Production Co, L.P. | Wayne Caruthers GU #1HH | 9,000 | 49737452 |
| 737785Amendment | Apr 20, 2012 | Apr 20, 2012 | Devon Energy Production Co, L.P. | Wayne Caruthers GU #1HH | 9,000 | 49737452 |
| 737756 | Apr 20, 2012 | Apr 20, 2012 | Devon Energy Production Co, L.P. | C. H. Wylie GU #1HH | 9,000 | 49737451 |
| 737609 | Apr 19, 2012 | Apr 19, 2012 | Aruba Petroleum, Inc. | Moody-Atkinson Unit #1HH | 9,000 | 49737450 |
| 737609Amendment | Apr 19, 2012 | Apr 19, 2012 | Aruba Petroleum, Inc. | Moody-Atkinson Unit #1HH | 9,000 | 49737450 |
| 737609Amendment | Apr 19, 2012 | Apr 19, 2012 | Aruba Petroleum, Inc. | Moody-Atkinson Unit #1HH | 9,000 | 49737450 |
| 736911 | Apr 19, 2012 | Apr 19, 2012 | Richey, Ray Management Co., Inc. | Columbia-Johnson Unit #5 | 4,600 | 49737454 |
| 737365 | Apr 18, 2012 | Apr 18, 2012 | XTO Energy Inc. | Vinson Fee G #34HH | 12,000 | 49737448 |
| 737365Amendment | Apr 18, 2012 | Apr 18, 2012 | XTO Energy Inc. | Vinson Fee G #34HH | 12,000 | 49737448 |
| 737361 | Apr 18, 2012 | Apr 18, 2012 | XTO Energy Inc. | Vinson Fee G #31HH | 12,000 | 49737449 |
| 737361Amendment | Apr 18, 2012 | Apr 18, 2012 | XTO Energy Inc. | Vinson Fee G #31HH | 12,000 | 49737449 |
| 736627 | Apr 18, 2012 | Apr 18, 2012 | Burlington Resources O & G Co LP | Stone B Unit #4HH | 9,000 | 49737453 |
| 736605 | Apr 18, 2012 | Apr 18, 2012 | Burlington Resources O & G Co LP | Stone B Unit #3HH | 9,000 | 49737446 |
| 737363 | Apr 17, 2012 | Apr 17, 2012 | XTO Energy Inc. | Vinson Fee G #28HH | 12,000 | 49737447 |
| 737363Amendment | Apr 17, 2012 | Apr 17, 2012 | XTO Energy Inc. | Vinson Fee G #28HH | 12,000 | 49737447 |
| 737177 | Apr 16, 2012 | Apr 16, 2012 | Devon Energy Production Co, L.P. | Shoop 'C'-Hoyl (SA) #2HH | 9,000 | 49737445 |
| 737089 | Apr 16, 2012 | Apr 16, 2012 | Devon Energy Production Co, L.P. | Shoop C-McCurdy a (SA) 'A' #1HH | 9,000 | 49737443 |
| 736849 | Apr 11, 2012 | Apr 11, 2012 | XTO Energy Inc. | Vinson Fee E #10HH | 12,000 | 49737437 |
| 736849Amendment | Apr 11, 2012 | Apr 11, 2012 | XTO Energy Inc. | Vinson Fee E #10HH | 12,000 | 49737437 |
| 736851 | Apr 10, 2012 | Apr 10, 2012 | XTO Energy Inc. | Vinson Fee E #12HH | 12,000 | 49737435 |
| 736851Amendment | Apr 10, 2012 | Apr 10, 2012 | XTO Energy Inc. | Vinson Fee E #12HH | 12,000 | 49737435 |
| 736851Amendment | Apr 10, 2012 | Apr 10, 2012 | XTO Energy Inc. | Vinson Fee E #12HH | 12,000 | 49737435 |
| 736842 | Apr 10, 2012 | Apr 10, 2012 | XTO Energy Inc. | Vinson Fee F #13HH | 12,000 | 49737433 |
| 736842Amendment | Apr 10, 2012 | Apr 10, 2012 | XTO Energy Inc. | Vinson Fee F #13HH | 12,000 | 49737433 |
| 736839 | Apr 10, 2012 | Apr 10, 2012 | XTO Energy Inc. | Vinson Fee F #9HH | 12,000 | 49737434 |
| 736839Amendment | Apr 10, 2012 | Apr 10, 2012 | XTO Energy Inc. | Vinson Fee F #9HH | 12,000 | 49737434 |
| 735908 | Apr 6, 2012 | Apr 6, 2012 | Burlington Resources O & G Co LP | Frye Unit #1HH | 9,000 | 49737436 |
| 735714 | Apr 6, 2012 | Apr 6, 2012 | Burlington Resources O & G Co LP | Doyle Barnett Unit #2HH | 9,000 | 49737442 |
| 735678 | Apr 6, 2012 | Apr 6, 2012 | Burlington Resources O & G Co LP | Doyle Barnett Unit #1HH | 9,000 | 49737441 |
| 735627 | Apr 6, 2012 | Apr 6, 2012 | Aruba Petroleum, Inc. | Reddell 'a' Unit #2HH | 9,000 | 49737440 |
| 735282 | Apr 6, 2012 | Apr 6, 2012 | Burlington Resources O & G Co LP | Nivens #2HH | 9,000 | 49737439 |
| 735282Amendment | Apr 6, 2012 | Apr 6, 2012 | Burlington Resources O & G Co LP | Nivens #2HH | 9,000 | 49737439 |
| 735277 | Apr 6, 2012 | Apr 6, 2012 | Burlington Resources O & G Co LP | Nivens #1HH | 9,000 | 49737438 |
| 735277Amendment | Apr 6, 2012 | Apr 6, 2012 | Burlington Resources O & G Co LP | Nivens #1HH | 9,000 | 49737438 |
| 736511 | Apr 3, 2012 | Apr 3, 2012 | Enervest Operating, L.L.C. | Gibbon Gas Unit #1HH | 9,000 | 49737432 |
| 736452 | Apr 3, 2012 | Apr 3, 2012 | Devon Energy Production Co, L.P. | Shoop 'C'-Hoyl (SA) #1HH | 9,000 | 49737431 |
| 736452Amendment | Apr 3, 2012 | Apr 3, 2012 | Devon Energy Production Co, L.P. | Shoop 'C'-Hoyl (SA) #1HH | 9,000 | 49737431 |
| 736158 | Mar 28, 2012 | Mar 28, 2012 | Devon Energy Production Co, L.P. | Hoyl-Shoop 'C' (SA) #1HH | 9,000 | 49737430 |
| 735654 | Mar 26, 2012 | Mar 26, 2012 | Devon Energy Production Co, L.P. | Troxell-Kelley (SA) #1HH | 9,000 | 49737424 |
| 735859 | Mar 23, 2012 | Mar 23, 2012 | Glen D. Gonzenbach, LLC | Pigg #1 | 6,500 | 49737427 |
| 735850 | Mar 23, 2012 | Mar 23, 2012 | Glen D. Gonzenbach, LLC | Collier #1A | 6,500 | 49737428 |
| 734995 | Mar 23, 2012 | Mar 23, 2012 | Burlington Resources O & G Co LP | Ferguson-Pitts Unit #2HH | 9,000 | 49737429 |
| 734701 | Mar 23, 2012 | Mar 23, 2012 | Burlington Resources O & G Co LP | Forsythe Speer #15HH | 9,000 | 49737425 |
| 734701Amendment | Mar 23, 2012 | Mar 23, 2012 | Burlington Resources O & G Co LP | Forsythe Speer #15HH | 9,000 | 49737425 |
| 734910 | Mar 22, 2012 | Mar 22, 2012 | Burlington Resources O & G Co LP | Forsythe Deaver-Speer #16HH | 9,000 | 49737426 |
| 734910Amendment | Mar 22, 2012 | Mar 22, 2012 | Burlington Resources O & G Co LP | Forsythe Deaver-Speer #16HH | 9,000 | 49737426 |
| 735569 | Mar 20, 2012 | Mar 20, 2012 | Aruba Petroleum, Inc. | Reddell 'a' Unit #1HH | 9,000 | 49737423 |
| 735143 | Mar 14, 2012 | Mar 14, 2012 | Devon Energy Production Co, L.P. | Peterson-Spain 'B' (SA) #1HH | 9,000 | 49737420 |
| 734517 | Mar 14, 2012 | Mar 14, 2012 | Aruba Petroleum, Inc. | Simpson, Ida #2HH | 9,000 | 49737422 |
| 734482 | Mar 14, 2012 | Mar 14, 2012 | Richey, Ray Management Co., Inc. | Snyder, James L. #2 | 5,000 | 49737421 |
| 735047 | Mar 13, 2012 | Mar 13, 2012 | Devon Energy Production Co, L.P. | Hoyl, Dale #8HH | 9,000 | 49737419 |
| 735022 | Mar 12, 2012 | Mar 12, 2012 | Devon Energy Production Co, L.P. | Emma Edsall #1HH | 9,000 | 49737418 |
| 734246 | Mar 8, 2012 | Mar 8, 2012 | Richey, Ray Management Co., Inc. | Yeatts Unit #1HH | 10,000 | 49737416 |
| 734244 | Mar 8, 2012 | Mar 8, 2012 | Richey, Ray Management Co., Inc. | Marion Green #4HH | 10,000 | 49737415 |
| 734490 | Mar 5, 2012 | Mar 5, 2012 | Aruba Petroleum, Inc. | Simpson, Ida #1HH | 9,000 | 49737417 |
| 734208 | Mar 2, 2012 | Mar 2, 2012 | Devon Energy Production Co, L.P. | Pitts 'B'-Caraway (SA) #1HH | 9,000 | 49737414 |