| 708927Amendment | Feb 3, 2011 | Feb 3, 2011 | OXY USA Inc. | Universityleah #4 | 12,200 | 00342578 |
| 709455 | Feb 2, 2011 | Feb 2, 2011 | Conocophillips Company | University Andrews #195 | 7,500 | 00342585 |
| 709455Amendment | Feb 2, 2011 | Feb 2, 2011 | Conocophillips Company | University Andrews #195 | 7,500 | 00342585 |
| 709037 | Feb 2, 2011 | Feb 2, 2011 | Sandridge Expl. and Prod., LLC | MA Thornberry 'a' LZS #18 | 4,900 | 00342586 |
| 709036 | Feb 2, 2011 | Feb 2, 2011 | Sandridge Expl. and Prod., LLC | JT Lindley #16 | 4,900 | 00342580 |
| 709035 | Feb 2, 2011 | Feb 2, 2011 | Sandridge Expl. and Prod., LLC | JT Lindley #17 | 4,900 | 00342579 |
| 708971 | Feb 2, 2011 | Feb 2, 2011 | EXL Petroleum, LP | Universitycarrie #4 | 11,500 | 00342576 |
| 708966 | Feb 2, 2011 | Feb 2, 2011 | EXL Petroleum, LP | Universitycarrie #2 | 11,500 | 00342575 |
| 708910 | Feb 2, 2011 | Feb 2, 2011 | EXL Petroleum, LP | Universitycasey #3 | 11,500 | 00342577 |
| 708910Amendment | Feb 2, 2011 | Feb 2, 2011 | OXY USA Inc. | Universitycasey #3 | 12,200 | 00342577 |
| 708828 | Feb 2, 2011 | Feb 2, 2011 | EXL Petroleum, LP | Universityroxanne #3 | 11,500 | 00342573 |
| 708828Amendment | Feb 2, 2011 | Feb 2, 2011 | OXY USA Inc. | Universityroxanne #3 | 12,200 | 00342573 |
| 707776 | Feb 2, 2011 | Feb 2, 2011 | Petrogulf Corporation | University 1710 #1 | 5,500 | 00342588 |
| 709372 | Feb 1, 2011 | Feb 1, 2011 | Chesapeake Operating, Inc. | University 5-14 #2 | 14,000 | 00342583 |
| 709372Amendment | Feb 1, 2011 | Feb 1, 2011 | Chesapeake Operating, Inc. | University 5-14 #2 | 14,000 | 00342583 |
| 709351 | Feb 1, 2011 | Feb 1, 2011 | Sandridge Expl. and Prod., LLC | University Southern Minerals #14 | 7,700 | 00342570 |
| 709351Amendment | Feb 1, 2011 | Feb 1, 2011 | Sandridge Expl. and Prod., LLC | University Southern Minerals #14 | 8,100 | 00342570 |
| 709293 | Feb 1, 2011 | Feb 1, 2011 | Sandridge Expl. and Prod., LLC | Thornberry, MA Consolidated II #37 | 4,900 | 00342562 |
| 708892 | Feb 1, 2011 | Feb 1, 2011 | Opal Resources Operating Co.,llc | University 6-23 #9 | 12,000 | 00342574 |
| 708783 | Feb 1, 2011 | Feb 1, 2011 | EXL Petroleum, LP | Universitycameron #2 | 11,500 | 00342571 |
| 709302 | Jan 31, 2011 | Jan 31, 2011 | Sandridge Expl. and Prod., LLC | Thornberry-NWS #34 | 4,900 | 00342565 |
| 709297 | Jan 31, 2011 | Jan 31, 2011 | Sandridge Expl. and Prod., LLC | Thornberry-NWS #33 | 4,900 | 00342564 |
| 709296 | Jan 31, 2011 | Jan 31, 2011 | Sandridge Expl. and Prod., LLC | Thronberry-NWS #32 | 4,900 | 00342563 |
| 708730 | Jan 31, 2011 | Jan 31, 2011 | Opal Resources Operating Co.,llc | University 6-46 #5 | 12,000 | 00342561 |
| 708295 | Jan 31, 2011 | Jan 31, 2011 | Sandridge Expl. and Prod., LLC | South Fuhrman Mascho Unit #1732 | 4,900 | 00342528 |
| 709267 | Jan 28, 2011 | Jan 28, 2011 | Sandridge Expl. and Prod., LLC | Nix South Unit #27 | 7,500 | 00342560 |
| 709219 | Jan 28, 2011 | Jan 28, 2011 | Myco Industries, Inc. | University 5-40 #2 | 13,000 | 00342557 |
| 708627 | Jan 28, 2011 | Jan 28, 2011 | Sandridge Expl. and Prod., LLC | Thornberry '4' #17 | 4,900 | 00342559 |
| 708624 | Jan 28, 2011 | Jan 28, 2011 | Sandridge Expl. and Prod., LLC | Thornberry '4' #20 | 4,900 | 00342558 |
| 709094 | Jan 27, 2011 | Jan 27, 2011 | Samson Lone Star, LLC | University 9-12 #1 | 10,200 | 00342556 |
| 709060 | Jan 27, 2011 | Jan 27, 2011 | Reliance Energy, Inc. | Mabee 24 #2301 | 11,500 | 00341123 |
| 709014 | Jan 27, 2011 | Jan 27, 2011 | Sandridge Expl. and Prod., LLC | Nix South Unit #24 | 7,500 | 00342555 |
| 709012 | Jan 27, 2011 | Jan 27, 2011 | Sandridge Expl. and Prod., LLC | University Atp #16 | 8,100 | 00342553 |
| 709010 | Jan 27, 2011 | Jan 27, 2011 | Sandridge Expl. and Prod., LLC | Phillips University 11A #17 | 7,700 | 00342552 |
| 708615 | Jan 27, 2011 | Jan 27, 2011 | EXL Petroleum, LP | Universityroxanne #4 | 11,500 | 00342547 |
| 708981 | Jan 26, 2011 | Jan 26, 2011 | Reliance Energy, Inc. | Mabee 22 #2201 | 13,000 | 00342551 |
| 708626 | Jan 26, 2011 | Jan 26, 2011 | Sandridge Expl. and Prod., LLC | Ashton-NWS #10 | 4,900 | 00342548 |
| 708911 | Jan 25, 2011 | Jan 25, 2011 | Pacesetter Energy, LLC | Fisher 4 #3HH | 5,000 | 00342550 |
| 708911Amendment | Jan 25, 2011 | Jan 25, 2011 | Pacesetter Energy, LLC | Fisher 4 #3HH | 5,000 | 00342550 |
| 708876 | Jan 25, 2011 | Jan 25, 2011 | Reliance Energy, Inc. | Mabee 240B #202 | 13,000 | 00342549 |
| 708586 | Jan 25, 2011 | Jan 25, 2011 | Williams, Clayton Energy, Inc. | Andrews University 32 #4 | 11,400 | 00341401 |
| 708583 | Jan 25, 2011 | Jan 25, 2011 | Sandridge Expl. and Prod., LLC | Thornberry "4" #16 | 4,900 | 00342546 |
| 708578 | Jan 25, 2011 | Jan 25, 2011 | Sandridge Expl. and Prod., LLC | Thornberry, MA Consolidated I #36 | 4,900 | 00342545 |
| 708575 | Jan 25, 2011 | Jan 25, 2011 | Sandridge Expl. and Prod., LLC | Thornberry, MA Consolidated II #38 | 4,900 | 00342544 |
| 708571 | Jan 25, 2011 | Jan 25, 2011 | Sandridge Expl. and Prod., LLC | Thornberry 5B #5 | 4,900 | 00342543 |
| 708546 | Jan 25, 2011 | Jan 25, 2011 | Sandridge Expl. and Prod., LLC | Munger Nix 1 #10 | 4,900 | 00342542 |
| 708543 | Jan 24, 2011 | Jan 24, 2011 | Sandridge Expl. and Prod., LLC | Thornberry L #8 | 4,900 | 00342541 |
| 708746 | Jan 21, 2011 | Jan 21, 2011 | XTO Energy Inc. | University Block 9 #6AO | 11,000 | 00302915 |
| 708713 | Jan 21, 2011 | Jan 21, 2011 | Sandridge Expl. and Prod., LLC | University 11-13 #1 | 8,500 | 00342540 |
| 708621 | Jan 20, 2011 | Jan 20, 2011 | Devon Energy Production Co, L.P. | Uls Cdu 4-1 #1 | 11,500 | 00342535 |
| 708377 | Jan 20, 2011 | Jan 20, 2011 | EXL Petroleum, LP | State Ruby Grace #4 | 11,500 | 00342539 |
| 708377Amendment | Jan 20, 2011 | Jan 20, 2011 | OXY USA Inc. | State Ruby Grace #4 | 11,500 | 00342539 |
| 708370 | Jan 20, 2011 | Jan 20, 2011 | EXL Petroleum, LP | State Ruby Grace #3 | 11,500 | 00342534 |
| 708341 | Jan 20, 2011 | Jan 20, 2011 | Sandridge Expl. and Prod., LLC | Bush, W.H. #17 | 4,900 | 00342538 |
| 708312 | Jan 20, 2011 | Jan 20, 2011 | Sandridge Expl. and Prod., LLC | Bassel et Al #24 | 4,900 | 00342537 |
| 708309 | Jan 20, 2011 | Jan 20, 2011 | Sandridge Expl. and Prod., LLC | Bassel et Al #23 | 4,900 | 00342536 |
| 708308 | Jan 20, 2011 | Jan 20, 2011 | Sandridge Expl. and Prod., LLC | Bassel et Al #22 | 4,900 | 00342531 |
| 708566 | Jan 19, 2011 | Jan 19, 2011 | Sandridge Expl. and Prod., LLC | Phillips University B #1 | 4,900 | 00301911 |
| 708564 | Jan 19, 2011 | Jan 19, 2011 | OXY USA WTP LP | Queenbee A #4 | 10,000 | 00342526 |
| 708564Amendment | Jan 19, 2011 | Jan 19, 2011 | OXY USA WTP LP | Queenbee A #4 | 10,000 | 00342526 |
| 708562 | Jan 19, 2011 | Jan 19, 2011 | OXY USA WTP LP | North Dollarhide Unit #351 | 8,700 | 00342525 |
| 708559 | Jan 19, 2011 | Jan 19, 2011 | OXY USA WTP LP | North Dollarhide Unit #350 | 8,700 | 00342524 |
| 708539 | Jan 19, 2011 | Jan 19, 2011 | Sandridge Expl. and Prod., LLC | Cities #6 | 4,900 | 00342522 |
| 708534 | Jan 19, 2011 | Jan 19, 2011 | Sandridge Expl. and Prod., LLC | Phillips University 11A #16 | 7,999 | 00342527 |
| 708534Amendment | Jan 19, 2011 | Jan 19, 2011 | Sandridge Expl. and Prod., LLC | Phillips University 11A #16 | 8,100 | 00342527 |
| 708337 | Jan 19, 2011 | Jan 19, 2011 | Sandridge Expl. and Prod., LLC | Anita #17 | 4,900 | 00342533 |
| 708335 | Jan 19, 2011 | Jan 19, 2011 | Sandridge Expl. and Prod., LLC | Anita #16 | 4,900 | 00342532 |
| 708302 | Jan 19, 2011 | Jan 19, 2011 | Sandridge Expl. and Prod., LLC | Olsen et Al #11 | 4,900 | 00342530 |
| 708298 | Jan 19, 2011 | Jan 19, 2011 | Sandridge Expl. and Prod., LLC | Olsen et Al #10 | 4,900 | 00342529 |
| 708536 | Jan 18, 2011 | Jan 18, 2011 | Sandridge Expl. and Prod., LLC | Ranch 5S #2 | 4,900 | 00342521 |
| 708528 | Jan 18, 2011 | Jan 18, 2011 | Mewbourne Oil Company | University 'B11' '18' #1HH | 8,000 | 00342520 |
| 708511 | Jan 18, 2011 | Jan 18, 2011 | Sandridge Expl. and Prod., LLC | Nix South Unit #26 | 7,500 | 00342519 |
| 708509 | Jan 18, 2011 | Jan 18, 2011 | Sandridge Expl. and Prod., LLC | Nix South Unit #25 | 7,500 | 00342518 |
| 708505 | Jan 18, 2011 | Jan 18, 2011 | Chesapeake Operating, Inc. | University 5-34 #3 | 14,000 | 00342523 |
| 708505Amendment | Jan 18, 2011 | Jan 18, 2011 | Chesapeake Operating, Inc. | University 5-34 #3 | 14,000 | 00342523 |
| 708453 | Jan 14, 2011 | Jan 14, 2011 | Sandridge Expl. and Prod., LLC | Thornberry-LZS #12 | 4,900 | 00342517 |
| 708221 | Jan 14, 2011 | Jan 14, 2011 | Energen Resources Corporation | West Fuhrman Mascho Unit #2421 | 4,900 | 00342516 |
| 708221Amendment | Jan 14, 2011 | Jan 14, 2011 | Energen Resources Corporation | West Fuhrman Mascho Unit #2421 | 4,900 | 00342516 |
| 708220 | Jan 14, 2011 | Jan 14, 2011 | Energen Resources Corporation | West Fuhrman Mascho Unit #2420 | 4,900 | 00342515 |
| 708219 | Jan 14, 2011 | Jan 14, 2011 | Energen Resources Corporation | West Fuhrman Mascho Unit #1808 | 4,900 | 00342514 |
| 708218 | Jan 14, 2011 | Jan 14, 2011 | Energen Resources Corporation | West Fuhrman Mascho Unit #1725 | 4,900 | 00342513 |
| 708216 | Jan 14, 2011 | Jan 14, 2011 | Energen Resources Corporation | West Fuhrman Mascho Unit #1723 | 4,900 | 00342512 |
| 708215 | Jan 14, 2011 | Jan 14, 2011 | Energen Resources Corporation | West Fuhrman Mascho Unit #1721 | 4,900 | 00342511 |
| 708187 | Jan 14, 2011 | Jan 14, 2011 | Energen Resources Corporation | West Fuhrman Mascho Unit #1720 | 4,900 | 00342510 |
| 708186 | Jan 14, 2011 | Jan 14, 2011 | Energen Resources Corporation | West Fuhrman Mascho Unit #1719 | 4,900 | 00342509 |
| 708185 | Jan 14, 2011 | Jan 14, 2011 | Energen Resources Corporation | West Fuhrman Mascho Unit #1716 | 4,900 | 00342508 |
| 708184 | Jan 14, 2011 | Jan 14, 2011 | Energen Resources Corporation | West Fuhrman Mascho Unit #1706 | 4,900 | 00342507 |
| 708183 | Jan 14, 2011 | Jan 14, 2011 | Energen Resources Corporation | West Fuhrman Mascho Unit #1601 | 4,900 | 00342506 |
| 708183Amendment | Jan 14, 2011 | Jan 14, 2011 | Energen Resources Corporation | West Fuhrman Mascho Unit #1601 | 4,900 | 00342506 |
| 708182 | Jan 14, 2011 | Jan 14, 2011 | Energen Resources Corporation | West Fuhrman Mascho Unit #1302 | 4,900 | 00342505 |
| 708181 | Jan 14, 2011 | Jan 14, 2011 | Energen Resources Corporation | West Fuhrman Mascho Unit #1301 | 4,900 | 00342504 |
| 708169 | Jan 14, 2011 | Jan 14, 2011 | Energen Resources Corporation | Block 10 Fuhrman-Mascho Unit #1108 | 4,900 | 00342502 |
| 708168 | Jan 14, 2011 | Jan 14, 2011 | Energen Resources Corporation | Block 10 Fuhrman-Mascho Unit #1007 | 4,900 | 00342501 |
| 708168Amendment | Jan 14, 2011 | Jan 14, 2011 | Energen Resources Corporation | Block 10 Fuhrman-Mascho Unit #1007 | 4,900 | 00342501 |
| 708297 | Jan 13, 2011 | Jan 13, 2011 | Myco Industries, Inc. | University 5-40 #8 | 13,000 | 00342481 |
| 708294 | Jan 13, 2011 | Jan 13, 2011 | Myco Industries, Inc. | University 5-40 #7 | 13,000 | 00342480 |
| 708293 | Jan 13, 2011 | Jan 13, 2011 | Myco Industries, Inc. | University 5-40 #4 | 13,000 | 00342479 |
| 708292 | Jan 13, 2011 | Jan 13, 2011 | Sandridge Expl. and Prod., LLC | University Southern Minerals #16 | 7,700 | 00342484 |
| 708292Amendment | Jan 13, 2011 | Jan 13, 2011 | Sandridge Expl. and Prod., LLC | University Southern Minerals #16 | 8,100 | 00342484 |
| 708166 | Jan 13, 2011 | Jan 13, 2011 | Energen Resources Corporation | Block 10 Fuhrman-Mascho Unit #1006 | 4,900 | 00342500 |