| 725668 | Oct 6, 2011 | Oct 6, 2011 | PDC Energy | Mabee Ranch #3515 | 11,900 | 00343500 |
| 725324 | Oct 6, 2011 | Oct 6, 2011 | Sandridge Expl. and Prod., LLC | Parker Etal #17 | 4,900 | 00343494 |
| 725323 | Oct 6, 2011 | Oct 6, 2011 | Sandridge Expl. and Prod., LLC | Brown Etal #7 | 4,900 | 00343493 |
| 723463 | Oct 6, 2011 | Oct 6, 2011 | Sandridge Expl. and Prod., LLC | University 13-19 #1 | 7,300 | 00343374 |
| 723463Amendment | Oct 6, 2011 | Oct 6, 2011 | Sandridge Expl. and Prod., LLC | University 13-19 #1 | 8,300 | 00343374 |
| 725628 | Oct 5, 2011 | Oct 5, 2011 | Pioneer Natural Res. USA, Inc. | University "6-11" #2 | 11,800 | 00343499 |
| 725628Amendment | Oct 5, 2011 | Oct 5, 2011 | Pioneer Natural Res. USA, Inc. | University '6-11' #2 | 12,000 | 00343499 |
| 725627 | Oct 5, 2011 | Oct 5, 2011 | Pioneer Natural Res. USA, Inc. | University "6-12" #4 | 11,800 | 00343498 |
| 725627Amendment | Oct 5, 2011 | Oct 5, 2011 | Pioneer Natural Res. USA, Inc. | University '6-12' #4 | 12,000 | 00343498 |
| 725623 | Oct 5, 2011 | Oct 5, 2011 | Pioneer Natural Res. USA, Inc. | University "6-12A" #1 | 12,800 | 00343497 |
| 725623Amendment | Oct 5, 2011 | Oct 5, 2011 | Pioneer Natural Res. USA, Inc. | University '6-12A' #1 | 12,000 | 00343497 |
| 725594 | Oct 5, 2011 | Oct 5, 2011 | Sandridge Expl. and Prod., LLC | Thornberry 813 #10 | 4,900 | 00343496 |
| 725512 | Oct 5, 2011 | Oct 5, 2011 | Sandridge Expl. and Prod., LLC | Bush-Rasmussen #19 | 4,900 | 00343492 |
| 725511 | Oct 5, 2011 | Oct 5, 2011 | Sandridge Expl. and Prod., LLC | Thornberry G #15 | 4,900 | 00343491 |
| 724913 | Oct 4, 2011 | Oct 4, 2011 | OXY USA Inc. | Universitycarol #3 | 12,200 | 00343460 |
| 723068 | Oct 4, 2011 | Oct 4, 2011 | Bopco, L.P. | University 42 #2 | 12,200 | 00343360 |
| 725326 | Oct 3, 2011 | Oct 3, 2011 | Sandridge Expl. and Prod., LLC | Nora #8 | 4,900 | 00343488 |
| 725322 | Oct 3, 2011 | Oct 3, 2011 | Sandridge Expl. and Prod., LLC | Ehrig, et Al #19 | 5,000 | 00343487 |
| 725321 | Oct 3, 2011 | Oct 3, 2011 | Sandridge Expl. and Prod., LLC | Munger & Nix-Snow #6 | 4,900 | 00343486 |
| 725320 | Oct 3, 2011 | Oct 3, 2011 | Sandridge Expl. and Prod., LLC | Bassel et Al #29 | 4,900 | 00343485 |
| 725297 | Oct 3, 2011 | Oct 3, 2011 | OXY USA Inc. | Universitybrittany #4 | 12,200 | 00343484 |
| 725124 | Oct 3, 2011 | Oct 3, 2011 | PDC Energy | University Ruth #441 | 12,000 | 00343490 |
| 725121 | Oct 3, 2011 | Oct 3, 2011 | PDC Energy | University Camille #142 | 12,000 | 00343489 |
| 725060 | Oct 3, 2011 | Oct 3, 2011 | Sandridge Expl. and Prod., LLC | Thornberry, M.A. Consolidated I #53 | 4,900 | 00343476 |
| 725291 | Sep 30, 2011 | Sep 30, 2011 | Sandridge Expl. and Prod., LLC | MA Thornberry "a" LZS #22 | 4,900 | 00343483 |
| 725291Amendment | Sep 30, 2011 | Sep 30, 2011 | Sandridge Expl. and Prod., LLC | MA Thornberry 'a' LZS #22 | 4,900 | 00343483 |
| 725256 | Sep 30, 2011 | Sep 30, 2011 | Chesapeake Operating, Inc. | Mabee X #3 | 14,000 | 00343481 |
| 725254 | Sep 30, 2011 | Sep 30, 2011 | Sandridge Expl. and Prod., LLC | Thornberry -F- #31 | 4,900 | 00343482 |
| 725253 | Sep 30, 2011 | Sep 30, 2011 | Sandridge Expl. and Prod., LLC | Thornberry, M.A. Consolidated I #47 | 4,900 | 00343480 |
| 725252 | Sep 30, 2011 | Sep 30, 2011 | Sandridge Expl. and Prod., LLC | Lyda Miles #20 | 4,900 | 00343479 |
| 725248 | Sep 30, 2011 | Sep 30, 2011 | Sandridge Expl. and Prod., LLC | WH Bush B #23 | 4,900 | 00343478 |
| 724994 | Sep 30, 2011 | Sep 30, 2011 | Three Rivers Operating Co LLC | L. T. Davis #394 | 4,650 | 00343470 |
| 724994Amendment | Sep 30, 2011 | Sep 30, 2011 | Three Rivers Operating Co LLC | L. T. Davis #394 | 9,000 | 00343470 |
| 724994Amendment | Sep 30, 2011 | Sep 30, 2011 | Three Rivers Operating Co LLC | L. T. Davis #394 | 9,000 | 00343470 |
| 722562 | Sep 30, 2011 | Sep 30, 2011 | Chesapeake Operating, Inc. | University 5-34 #6 | 14,000 | 00343477 |
| 722562Amendment | Sep 30, 2011 | Sep 30, 2011 | Chesapeake Operating, Inc. | University 5-34 #6 | 14,000 | 00343477 |
| 725061 | Sep 29, 2011 | Sep 29, 2011 | Sandridge Expl. and Prod., LLC | Thornberry 5E #7 | 4,900 | 00343474 |
| 725057 | Sep 29, 2011 | Sep 29, 2011 | Sandridge Expl. and Prod., LLC | Ranch 4 #23 | 4,900 | 00343473 |
| 725056 | Sep 29, 2011 | Sep 29, 2011 | Sandridge Expl. and Prod., LLC | Lyda Miles Gap #15 | 4,900 | 00343472 |
| 725017 | Sep 28, 2011 | Sep 28, 2011 | Apache Corporation | Shafter Lake (San Andres) Unit #613HH | 5,100 | 00343471 |
| 725016 | Sep 28, 2011 | Sep 28, 2011 | Apache Corporation | Shafter Lake (San Andres) Unit #612HH | 5,100 | 00343475 |
| 724999 | Sep 28, 2011 | Sep 28, 2011 | Americo Energy Resources, LLC | State AQ #3 | 13,000 | 00301738 |
| 722663 | Sep 28, 2011 | Sep 28, 2011 | W&T Offshore, Inc. | University 6-23 #8 | 12,900 | 00343330 |
| 721495 | Sep 28, 2011 | Sep 28, 2011 | Nadel and Gussman Permian,l.l.c. | Perkins #3 | 12,600 | 00337821 |
| 724935 | Sep 27, 2011 | Sep 27, 2011 | Devon Energy Production Co, L.P. | University 12-10 #2HH | 7,500 | 00343463 |
| 724711 | Sep 27, 2011 | Sep 27, 2011 | PDC Energy | Miranda #1756 | 11,900 | 00343469 |
| 724702 | Sep 27, 2011 | Sep 27, 2011 | Sandridge Expl. and Prod., LLC | Thornberry 7N #11 | 4,900 | 00343468 |
| 724699 | Sep 27, 2011 | Sep 27, 2011 | Sandridge Expl. and Prod., LLC | Yeager & Armstrong #6 | 4,900 | 00343467 |
| 724698 | Sep 27, 2011 | Sep 27, 2011 | Sandridge Expl. and Prod., LLC | Martin LZS #105 | 4,900 | 00343466 |
| 724870 | Sep 26, 2011 | Sep 26, 2011 | Sandridge Expl. and Prod., LLC | South Fuhrman Mascho Unit #5115 | 4,900 | 00343459 |
| 724866 | Sep 26, 2011 | Sep 26, 2011 | Sandridge Expl. and Prod., LLC | Thornberry-NWS #55 | 4,900 | 00343458 |
| 724847 | Sep 26, 2011 | Sep 26, 2011 | OXY USA Inc. | Universitychloe #3 | 12,200 | 00343455 |
| 724839 | Sep 26, 2011 | Sep 26, 2011 | OXY USA Inc. | Universitychloe #2 | 12,200 | 00343457 |
| 724836 | Sep 26, 2011 | Sep 26, 2011 | Sandridge Expl. and Prod., LLC | University 24A #3 | 4,900 | 00343461 |
| 724832 | Sep 26, 2011 | Sep 26, 2011 | Sandridge Expl. and Prod., LLC | Fisher, MM A #4 | 9,000 | 00343456 |
| 724832Amendment | Sep 26, 2011 | Sep 26, 2011 | Sandridge Expl. and Prod., LLC | Fisher, MM A #4 | 9,000 | 00343456 |
| 724830 | Sep 26, 2011 | Sep 26, 2011 | Sandridge Expl. and Prod., LLC | Ashton #22 | 4,900 | 00343453 |
| 724826 | Sep 26, 2011 | Sep 26, 2011 | Sandridge Expl. and Prod., LLC | State FV #5 | 15,000 | 00301703 |
| 724822 | Sep 26, 2011 | Sep 26, 2011 | Sandridge Expl. and Prod., LLC | Ashton #25 | 4,900 | 00343452 |
| 724817 | Sep 26, 2011 | Sep 26, 2011 | Texland Petroleum, L.P. | Emory #3 | 6,200 | 00343462 |
| 724802 | Sep 26, 2011 | Sep 26, 2011 | SM Energy Company | University "36" Pinnacle #1 | 11,000 | 00343454 |
| 724802Amendment | Sep 26, 2011 | Sep 26, 2011 | SM Energy Company | University "36" Pinnacle #1 | 11,000 | 00343454 |
| 724802Amendment | Sep 26, 2011 | Sep 26, 2011 | SM Energy Company | University '36' Pinnacle #1 | 10,400 | 00343454 |
| 724706 | Sep 26, 2011 | Sep 26, 2011 | Sandridge Expl. and Prod., LLC | University 14-16D #7 | 4,900 | 00343451 |
| 724109 | Sep 26, 2011 | Sep 26, 2011 | Americo Energy Resources, LLC | State BM #4 | 13,000 | 00301762 |
| 724721 | Sep 23, 2011 | Sep 23, 2011 | Energen Resources Corporation | Block 10 Fuhrman Mascho Unit #1141 | 4,900 | 00343448 |
| 724708 | Sep 23, 2011 | Sep 23, 2011 | Sandridge Expl. and Prod., LLC | Yeager & Armstrong #7 | 4,900 | 00343449 |
| 724703 | Sep 23, 2011 | Sep 23, 2011 | Sandridge Expl. and Prod., LLC | Sun #25 | 4,900 | 00343447 |
| 724700 | Sep 23, 2011 | Sep 23, 2011 | Sandridge Expl. and Prod., LLC | University 14-16 'D' #13 | 5,000 | 00343446 |
| 724697 | Sep 23, 2011 | Sep 23, 2011 | Energen Resources Corporation | Block 10 Fuhrman Mascho Unit #1035 | 4,900 | 00343445 |
| 724692 | Sep 23, 2011 | Sep 23, 2011 | Energen Resources Corporation | Block 10 Fuhrman Mascho Unit #1033 | 4,900 | 00343444 |
| 724586 | Sep 23, 2011 | Sep 23, 2011 | Myco Industries, Inc. | University 6-19 #2 | 13,000 | 00343442 |
| 724500 | Sep 23, 2011 | Sep 23, 2011 | OXY USA Inc. | Universitybrittany #3 | 12,200 | 00343436 |
| 724636 | Sep 22, 2011 | Sep 22, 2011 | Americo Energy Resources, LLC | State MMM #3 | 13,000 | 00301641 |
| 724579 | Sep 22, 2011 | Sep 22, 2011 | PDC Energy | University Camille #172 | 11,900 | 00343440 |
| 724506 | Sep 22, 2011 | Sep 22, 2011 | Sandridge Expl. and Prod., LLC | University Consolidated IV #3002 | 7,300 | 00343439 |
| 724506Amendment | Sep 22, 2011 | Sep 22, 2011 | Sandridge Expl. and Prod., LLC | University Consolidated IV #3002 | 9,000 | 00343439 |
| 724472 | Sep 22, 2011 | Sep 22, 2011 | OXY USA Inc. | Universitypamela #4 | 12,200 | 00343432 |
| 724402 | Sep 22, 2011 | Sep 22, 2011 | OXY USA Inc. | Universitypamela #3 | 12,200 | 00343424 |
| 724333 | Sep 22, 2011 | Sep 22, 2011 | Pioneer Natural Res. USA, Inc. | University "7-22" #6 | 12,000 | 00343431 |
| 724329 | Sep 22, 2011 | Sep 22, 2011 | Pioneer Natural Res. USA, Inc. | University '7-22' #5 | 12,000 | 00343430 |
| 724512 | Sep 21, 2011 | Sep 21, 2011 | Pioneer Natural Res. USA, Inc. | University '7-43' #5 | 12,050 | 00343438 |
| 724494 | Sep 21, 2011 | Sep 21, 2011 | McClure Oil Company, Inc. | University '44' #1 | 9,300 | 00343435 |
| 724490 | Sep 21, 2011 | Sep 21, 2011 | Pioneer Natural Res. USA, Inc. | University '7-43' #4 | 12,100 | 00343434 |
| 724474 | Sep 21, 2011 | Sep 21, 2011 | Pioneer Natural Res. USA, Inc. | University '7-43' #3 | 12,050 | 00343433 |
| 724415 | Sep 21, 2011 | Sep 21, 2011 | Pioneer Natural Res. USA, Inc. | University '7-43' #2 | 12,050 | 00343427 |
| 724397 | Sep 21, 2011 | Sep 21, 2011 | Pacesetter Energy, LLC | Fisher State 17 #1W | 6,000 | 00343425 |
| 724397Amendment | Sep 21, 2011 | Sep 21, 2011 | Pacesetter Energy, LLC | Fisher State 17 #1W | 6,000 | 00343425 |
| 724320 | Sep 21, 2011 | Sep 21, 2011 | Pioneer Natural Res. USA, Inc. | University "6-25B" #6 | 11,800 | 00343429 |
| 724318 | Sep 21, 2011 | Sep 21, 2011 | Pioneer Natural Res. USA, Inc. | University "6-25A" #2 | 12,000 | 00343428 |
| 724318Amendment | Sep 21, 2011 | Sep 21, 2011 | Pioneer Natural Res. USA, Inc. | University '6-25A' #2 | 12,000 | 00343428 |
| 724310 | Sep 21, 2011 | Sep 21, 2011 | Texland Petroleum, L.P. | Elena #2 | 6,200 | 00343418 |
| 724358 | Sep 20, 2011 | Sep 20, 2011 | Sandridge Expl. and Prod., LLC | Thornberry -F- #29 | 5,000 | 00343422 |
| 724357 | Sep 20, 2011 | Sep 20, 2011 | Sandridge Expl. and Prod., LLC | Thornberry '4W' #19 | 5,000 | 00343421 |
| 724356 | Sep 20, 2011 | Sep 20, 2011 | Sandridge Expl. and Prod., LLC | Thornberry '4W' #27 | 5,000 | 00343423 |
| 724339 | Sep 20, 2011 | Sep 20, 2011 | XTO Energy Inc. | University BLK 9/Wolfcamp/Unit #2F | 10,527 | 00300460 |
| 724339Amendment | Sep 20, 2011 | Sep 20, 2011 | XTO Energy Inc. | University BLK 9/Wolfcamp/Unit #2F | 10,527 | 00300460 |
| 724332 | Sep 20, 2011 | Sep 20, 2011 | Americo Energy Resources, LLC | State BN #1 | 13,000 | 00301763 |
| 724312 | Sep 20, 2011 | Sep 20, 2011 | Texland Petroleum, L.P. | Elena #3 | 6,200 | 00343437 |
| 723936 | Sep 19, 2011 | Sep 19, 2011 | Greystone Oil & Gas, LLP | State AR #7 | 9,550 | 00343403 |