| 656658 | Mar 13, 2008 | Mar 13, 2008 | Big Shell Oil & Gas, Inc. | University #100340442 | 14,000 |
| 656658Amendment | Mar 13, 2008 | Mar 13, 2008 | Big Shell Oil & Gas, Inc. | University #100340442 | 14,000 |
| 656309 | Mar 10, 2008 | Mar 10, 2008 | OK Arena Operating Company | WH Bush #900340437 | 4,900 |
| 654898 | Mar 10, 2008 | Mar 10, 2008 | Pacesetter Energy, Inc. | Savage #800340406 | 5,000 |
| 654898Amendment | Mar 10, 2008 | Mar 10, 2008 | Pacesetter Energy, Inc. | Savage #800340406 | 6,000 |
| 654898Amendment | Mar 10, 2008 | Mar 10, 2008 | Pacesetter Energy, Inc. | Savage #800340406 | 6,000 |
| 656307 | Mar 7, 2008 | Mar 7, 2008 | OK Arena Operating Company | Bush, W. H. #1000340438 | 4,900 |
| 656298 | Mar 7, 2008 | Mar 7, 2008 | Legacy Reserves Operating LP | Fuhrman "A" #400340436 | 4,750 |
| 656298Amendment | Mar 7, 2008 | Mar 7, 2008 | Legacy Reserves Operating LP | Fuhrman "A" #400340436 | 4,750 |
| 656222 | Mar 7, 2008 | Mar 7, 2008 | OK Arena Operating Company | University 12A #100340434 | 7,000 |
| 654917 | Mar 6, 2008 | Mar 6, 2008 | OK Arena Operating Company | Olsen et Al #600340441 | 4,900 |
| 654916 | Mar 6, 2008 | Mar 6, 2008 | OK Arena Operating Company | Olsen et Al #500340440 | 4,900 |
| 653211 | Mar 6, 2008 | Mar 6, 2008 | Sloan Petroleum Inc. | Armstrong #100340439 | 6,000 |
| 656296 | Mar 5, 2008 | Mar 5, 2008 | Legacy Reserves Operating LP | Fuhrman "A" #300340435 | 4,750 |
| 656114 | Mar 5, 2008 | Mar 5, 2008 | Legacy Reserves Operating LP | Fuhrman "A" #200340433 | 4,750 |
| 655829 | Mar 5, 2008 | Mar 5, 2008 | Forest Oil Corporation | University Atp #500337265 | 9,050 |
| 655932 | Mar 4, 2008 | Mar 4, 2008 | Nadel and Gussman Permian,l.l.c. | Antelope University #300336877 | 9,980 |
| 655932Amendment | Mar 4, 2008 | Mar 4, 2008 | Nadel and Gussman Permian,l.l.c. | Antelope University #300336877 | 9,980 |
| 655855 | Mar 4, 2008 | Mar 4, 2008 | Forest Oil Corporation | Phillips University O #500339031 | 7,633 |
| 648793 | Mar 4, 2008 | Mar 4, 2008 | OK Arena Operating Company | University 18 #200333377 | 4,760 |
| 655782 | Mar 3, 2008 | Mar 3, 2008 | Forest Oil Corporation | Phillips University P #1000339757 | 7,705 |
| 655647 | Mar 3, 2008 | Mar 3, 2008 | Thompson, J. Cleo | University 8-2 #100340432 | 11,200 |
| 655606 | Mar 3, 2008 | Mar 3, 2008 | Americo Energy Resources, LLC | FK #500301689 | 12,420 |
| 655539 | Mar 3, 2008 | Mar 3, 2008 | OK Arena Operating Company | Thornberry Consolidated I #2100340431 | 4,900 |
| 655843 | Feb 28, 2008 | Feb 28, 2008 | Apache Corporation | University BQ #1200340428 | 6,000 |
| 655838 | Feb 28, 2008 | Feb 28, 2008 | OK Arena Operating Company | Sfmu #157700340429 | 4,900 |
| 655837 | Feb 28, 2008 | Feb 28, 2008 | OK Arena Operating Company | Thornberry Consolidated I #1900340425 | 4,900 |
| 655824 | Feb 28, 2008 | Feb 28, 2008 | Forest Oil Corporation | University Southern Minerals #600339029 | 7,630 |
| 655785 | Feb 28, 2008 | Feb 28, 2008 | Williams, Clayton Energy, Inc. | Andrews University 28 #100340423 | 10,700 |
| 655769 | Feb 28, 2008 | Feb 28, 2008 | Forest Oil Corporation | Phillips University P #1100339756 | 8,000 |
| 655759 | Feb 28, 2008 | Feb 28, 2008 | Forest Oil Corporation | University Atp #900338834 | 8,100 |
| 655551 | Feb 28, 2008 | Feb 28, 2008 | OK Arena Operating Company | Thorbnerry Consolidated III #2100340430 | 4,900 |
| 655732 | Feb 27, 2008 | Feb 27, 2008 | OK Arena Operating Company | Yeager & Armstrong #200340422 | 4,900 |
| 655092 | Feb 27, 2008 | Feb 27, 2008 | OK Arena Operating Company | Sfmu #910100340414 | 4,900 |
| 655550 | Feb 26, 2008 | Feb 26, 2008 | OK Arena Operating Company | Thornberry Consolidated III #2000340421 | 4,900 |
| 655285 | Feb 26, 2008 | Feb 26, 2008 | OK Arena Operating Company | Sfmu #165700340417 | 4,900 |
| 653543 | Feb 26, 2008 | Feb 26, 2008 | Reliance Energy, Inc. | Mabee 240 #140100340424 | 11,500 |
| 655545 | Feb 25, 2008 | Feb 25, 2008 | OK Arena Operating Company | Thorbnerry Consolidated III #2200340420 | 4,900 |
| 655543 | Feb 25, 2008 | Feb 25, 2008 | OK Arena Operating Company | Thornberry Consolidated I #2000340419 | 4,900 |
| 655523 | Feb 25, 2008 | Feb 25, 2008 | Williams, Clayton Energy, Inc. | Andrews University 21 #100339632 | 10,170 |
| 655512 | Feb 25, 2008 | Feb 25, 2008 | Henry Petroleum LP | Henry Cowden (Gbsa) Unit #52300340418 | 5,000 |
| 655139 | Feb 25, 2008 | Feb 25, 2008 | Henry Petroleum LP | Henry Cowden Gbsa Unit #52400340415 | 5,500 |
| 654979 | Feb 22, 2008 | Feb 22, 2008 | OK Arena Operating Company | Sfmu #166600340416 | 4,900 |
| 654929 | Feb 21, 2008 | Feb 21, 2008 | OK Arena Operating Company | Lockhart & Brown #300340411 | 4,900 |
| 654977 | Feb 20, 2008 | Feb 20, 2008 | OK Arena Operating Company | Brown Knight #200340412 | 4,900 |
| 654926 | Feb 20, 2008 | Feb 20, 2008 | OK Arena Operating Company | Fuhrman B #700340410 | 4,900 |
| 654923 | Feb 19, 2008 | Feb 19, 2008 | OK Arena Operating Company | McFarlane #800340409 | 4,900 |
| 654921 | Feb 19, 2008 | Feb 19, 2008 | OK Arena Operating Company | McFarlane #700340408 | 4,900 |
| 654897 | Feb 15, 2008 | Feb 15, 2008 | Pacesetter Energy, Inc. | Savage #700340407 | 5,000 |
| 654897Amendment | Feb 15, 2008 | Feb 15, 2008 | Pacesetter Energy, Inc. | Savage #700340407 | 6,000 |
| 654897Amendment | Feb 15, 2008 | Feb 15, 2008 | Pacesetter Energy, Inc. | Savage #700340407 | 6,000 |
| 654765 | Feb 15, 2008 | Feb 15, 2008 | Encore Operating, L.P. | Gray, Columbus et Al #220600306356 | 9,450 |
| 654762 | Feb 15, 2008 | Feb 15, 2008 | Encore Operating, L.P. | Ford, W.T. #5300331766 | 5,680 |
| 654727 | Feb 14, 2008 | Feb 14, 2008 | EXL Petroleum, LP | Universityamber #100340405 | 11,500 |
| 654727Amendment | Feb 14, 2008 | Feb 14, 2008 | EXL Petroleum, LP | Universityamber #100340405 | 11,500 |
| 654661 | Feb 14, 2008 | Feb 14, 2008 | M & M Production Ltd. | University GK #100333689 | 4,735 |
| 654660 | Feb 14, 2008 | Feb 14, 2008 | M & M Production Ltd. | University D #100333688 | 4,750 |
| 653458 | Feb 14, 2008 | Feb 14, 2008 | OK Arena Operating Company | South Fuhrman Mascho Unit #85700340366 | 4,900 |
| 654583 | Feb 12, 2008 | Feb 12, 2008 | M & M Production Ltd. | University 24 #400340402 | 9,300 |
| 654579 | Feb 12, 2008 | Feb 12, 2008 | M & M Production Ltd. | University 24 #500340403 | 9,300 |
| 654453 | Feb 9, 2008 | Feb 9, 2008 | EXL Petroleum, LP | Universityroxanne #100340401 | 11,500 |
| 654453Amendment | Feb 9, 2008 | Feb 9, 2008 | EXL Petroleum, LP | Universityroxanne #100340401 | 11,500 |
| 654420 | Feb 9, 2008 | Feb 9, 2008 | Chesapeake Operating, Inc. | University 6-24 #300340400 | 12,000 |
| 654418 | Feb 9, 2008 | Feb 9, 2008 | Chesapeake Operating, Inc. | University 6-34 #100340399 | 12,000 |
| 649420 | Feb 9, 2008 | Feb 9, 2008 | OK Arena Operating Company | Munger Nix A #1500300972 | 3,200 |
| 649420Amendment | Feb 9, 2008 | Feb 9, 2008 | OK Arena Operating Company | Munger Nix A #1500300972 | 3,200 |
| 654299 | Feb 8, 2008 | Feb 8, 2008 | XTO Energy Inc. | State University "AO" #100302521 | 10,610 |
| 648741 | Feb 8, 2008 | Feb 8, 2008 | OK Arena Operating Company | Parker, et Al #400332147 | 4,900 |
| 654172 | Feb 7, 2008 | Feb 7, 2008 | Range Production Company | Thornberry 18 #100337989 | 4,700 |
| 654103 | Feb 7, 2008 | Feb 7, 2008 | M & M Production Ltd. | University "C" #100340397 | 4,700 |
| 654101 | Feb 7, 2008 | Feb 7, 2008 | M & M Production Ltd. | University C #200340398 | 4,700 |
| 653947 | Feb 4, 2008 | Feb 4, 2008 | OK Arena Operating Company | Brown #300340395 | 4,900 |
| 653879 | Feb 2, 2008 | Feb 2, 2008 | OK Arena Operating Company | University 21A #100340394 | 4,900 |
| 651688 | Jan 31, 2008 | Jan 31, 2008 | Range Production Company | West Fuhrman-Mascho Unit #57500340390 | 4,900 |
| 651667 | Jan 31, 2008 | Jan 31, 2008 | Range Production Company | West Fuhrman-Mascho Unit #41300340396 | 4,900 |
| 653646 | Jan 30, 2008 | Jan 30, 2008 | OK Arena Operating Company | University 16 #1000340376 | 4,900 |
| 653644 | Jan 30, 2008 | Jan 30, 2008 | OK Arena Operating Company | University 17 South #100340375 | 7,300 |
| 653643 | Jan 30, 2008 | Jan 30, 2008 | OK Arena Operating Company | University 16 #1300340374 | 4,900 |
| 653636 | Jan 30, 2008 | Jan 30, 2008 | OK Arena Operating Company | University 16 #1200340377 | 4,900 |
| 653632 | Jan 30, 2008 | Jan 30, 2008 | OK Arena Operating Company | University 16 #1100340373 | 4,900 |
| 653628 | Jan 30, 2008 | Jan 30, 2008 | OK Arena Operating Company | University 6 #600340372 | 4,900 |
| 653626 | Jan 30, 2008 | Jan 30, 2008 | OK Arena Operating Company | University 6 #500340371 | 4,900 |
| 653624 | Jan 30, 2008 | Jan 30, 2008 | OK Arena Operating Company | University 6 #700340370 | 4,900 |
| 651693 | Jan 30, 2008 | Jan 30, 2008 | Range Production Company | West Fuhrman-Mascho Unit #59100340393 | 4,900 |
| 651691 | Jan 30, 2008 | Jan 30, 2008 | Range Production Company | West Fuhrman-Mascho Unit #58300340392 | 4,900 |
| 651689 | Jan 30, 2008 | Jan 30, 2008 | Range Production Company | West Fuhrman-Mascho Unit #57900340391 | 4,900 |
| 651677 | Jan 30, 2008 | Jan 30, 2008 | Range Production Company | West Fuhrman-Mascho Unit #54900340387 | 4,900 |
| 651666 | Jan 30, 2008 | Jan 30, 2008 | Range Production Company | West Fuhrman-Mascho Unit #52800340384 | 4,900 |
| 651664 | Jan 30, 2008 | Jan 30, 2008 | Range Production Company | West Fuhrman-Mascho Unit #52900340383 | 4,900 |
| 651685 | Jan 29, 2008 | Jan 29, 2008 | Range Production Company | West Fuhrman-Mascho Unit #55400340389 | 4,900 |
| 651684 | Jan 29, 2008 | Jan 29, 2008 | Range Production Company | West Fuhrman-Mascho Unit #55200340388 | 4,900 |
| 651676 | Jan 29, 2008 | Jan 29, 2008 | Range Production Company | West Fuhrman-Mascho Unit #54800340386 | 4,900 |
| 651675 | Jan 29, 2008 | Jan 29, 2008 | Range Production Company | West Fuhrman-Mascho Unit #31100340385 | 4,900 |
| 651663 | Jan 29, 2008 | Jan 29, 2008 | Range Production Company | West Fuhrman-Mascho Unit #53000340378 | 4,900 |
| 651662 | Jan 29, 2008 | Jan 29, 2008 | Range Production Company | West Fuhrman-Mascho Unit #53400340382 | 4,900 |
| 651661 | Jan 29, 2008 | Jan 29, 2008 | Range Production Company | West Fuhrman-Mascho Unit #53500340381 | 4,900 |
| 651660 | Jan 29, 2008 | Jan 29, 2008 | Range Production Company | West Fuhrman-Mascho Unit #53900340380 | 4,900 |
| 651659 | Jan 29, 2008 | Jan 29, 2008 | Range Production Company | West Fuhrman-Mascho Unit #54300340379 | 4,900 |
| 653467 | Jan 28, 2008 | Jan 28, 2008 | OK Arena Operating Company | McFarlane #600340367 | 4,900 |
| 653465 | Jan 28, 2008 | Jan 28, 2008 | OK Arena Operating Company | University 5 #200340365 | 4,900 |