| 740932 | May 29, 2012 | May 29, 2012 | Sandridge Expl. and Prod., LLC | Knight Watson #16 | 4,900 | 00344404 |
| 740930 | May 29, 2012 | May 29, 2012 | Sandridge Expl. and Prod., LLC | Knight Watson #15 | 4,900 | 00344403 |
| 738477 | May 29, 2012 | May 29, 2012 | OXY USA Inc. | Mustang #3503 | 12,500 | 00344256 |
| 738476 | May 29, 2012 | May 29, 2012 | OXY USA Inc. | Mustang #3405 | 12,500 | 00344252 |
| 738475 | May 29, 2012 | May 29, 2012 | OXY USA Inc. | Mustang #3409 | 12,500 | 00344253 |
| 736196 | May 29, 2012 | May 29, 2012 | OXY USA Inc. | Mustang #3407 | 12,500 | 00344257 |
| 740928 | May 25, 2012 | May 25, 2012 | Sandridge Expl. and Prod., LLC | Argo Knight #24 | 4,900 | 00344402 |
| 740922 | May 25, 2012 | May 25, 2012 | Sandridge Expl. and Prod., LLC | Argo Knight #21 | 4,900 | 00344401 |
| 740922Amendment | May 25, 2012 | May 25, 2012 | Sandridge Expl. and Prod., LLC | Argo Knight #21 | 5,200 | 00344401 |
| 740851 | May 25, 2012 | May 25, 2012 | Sandridge Expl. and Prod., LLC | CC Sentry #7 | 4,900 | 00344396 |
| 740849 | May 25, 2012 | May 25, 2012 | Sandridge Expl. and Prod., LLC | University 16 #18 | 4,900 | 00344399 |
| 740847 | May 25, 2012 | May 25, 2012 | Sandridge Expl. and Prod., LLC | University 16 #17 | 4,900 | 00344398 |
| 740541 | May 25, 2012 | May 25, 2012 | Sandridge Expl. and Prod., LLC | Rosa Lee #1 | 4,900 | 00344372 |
| 740541Amendment | May 25, 2012 | May 25, 2012 | Sandridge Expl. and Prod., LLC | Rosa Lee #1 | 5,200 | 00344372 |
| 739643 | May 25, 2012 | May 25, 2012 | Vin Fisher Operating, Inc. | University D #7 | 5,000 | 00344320 |
| 740753 | May 23, 2012 | May 23, 2012 | Sandridge Expl. and Prod., LLC | South Fuhrman Mascho Unit #1661 | 5,000 | 00344393 |
| 740736 | May 23, 2012 | May 23, 2012 | Sandridge Expl. and Prod., LLC | CC Sentry #6 | 4,900 | 00344391 |
| 740712 | May 23, 2012 | May 23, 2012 | Williams, Clayton Energy, Inc. | Samson University 18 #3 | 11,600 | 00344389 |
| 740602 | May 23, 2012 | May 23, 2012 | Sandridge Expl. and Prod., LLC | Munger Nix #187 | 4,900 | 00344380 |
| 740600 | May 23, 2012 | May 23, 2012 | Sandridge Expl. and Prod., LLC | Lockhart & Brown #12 | 4,900 | 00344376 |
| 740597 | May 23, 2012 | May 23, 2012 | Sandridge Expl. and Prod., LLC | Bush Rasmussen B #23 | 4,900 | 00344377 |
| 740593 | May 23, 2012 | May 23, 2012 | Sandridge Expl. and Prod., LLC | Thornberry, MA Consolidated I #49 | 4,900 | 00344378 |
| 740591 | May 23, 2012 | May 23, 2012 | Sandridge Expl. and Prod., LLC | WH Bush #30 | 4,900 | 00344375 |
| 738958 | May 23, 2012 | May 23, 2012 | Sandridge Expl. and Prod., LLC | Lindley Friemel #14 | 4,900 | 00344285 |
| 740623 | May 22, 2012 | May 22, 2012 | Sandridge Expl. and Prod., LLC | Thornberry, MA Consolidated II #44 | 4,900 | 00344384 |
| 740617 | May 22, 2012 | May 22, 2012 | Sandridge Expl. and Prod., LLC | Thornberry, MA Consolidated II #43 | 4,900 | 00344381 |
| 740614 | May 22, 2012 | May 22, 2012 | Sandridge Expl. and Prod., LLC | Thornberry, MA Consolidated I #60 | 4,900 | 00344379 |
| 740612 | May 22, 2012 | May 22, 2012 | Sandridge Expl. and Prod., LLC | Lockhart & Brown Fee #12 | 4,900 | 00344383 |
| 740610 | May 22, 2012 | May 22, 2012 | Browning Oil Company, Inc. | University 26 #1 | 9,000 | 00344382 |
| 740549 | May 22, 2012 | May 22, 2012 | Sandridge Expl. and Prod., LLC | Thornberry, MA Consolidated III #51 | 4,900 | 00344374 |
| 740540 | May 22, 2012 | May 22, 2012 | Sandridge Expl. and Prod., LLC | CC Cities Service AA #14 | 4,900 | 00344369 |
| 740538 | May 22, 2012 | May 22, 2012 | Sandridge Expl. and Prod., LLC | Lockhart & Brown Fee #8 | 4,900 | 00344371 |
| 740531 | May 22, 2012 | May 22, 2012 | Pioneer Natural Res. USA, Inc. | University '6-49' #4 | 13,000 | 00344365 |
| 740531Amendment | May 22, 2012 | May 22, 2012 | Pioneer Natural Res. USA, Inc. | University '6-49' #4 | 13,000 | 00344365 |
| 740528 | May 22, 2012 | May 22, 2012 | Pioneer Natural Res. USA, Inc. | University '6-18A' #6 | 13,000 | 00344364 |
| 740522 | May 22, 2012 | May 22, 2012 | Sandridge Expl. and Prod., LLC | Munger Nix #191 | 4,900 | 00344370 |
| 740521 | May 22, 2012 | May 22, 2012 | Sandridge Expl. and Prod., LLC | Munger Nix #190 | 4,900 | 00344373 |
| 740516 | May 22, 2012 | May 22, 2012 | Sandridge Expl. and Prod., LLC | Lockhart & Brown Fee #11 | 4,900 | 00344368 |
| 740514 | May 22, 2012 | May 22, 2012 | Sandridge Expl. and Prod., LLC | Lockhart & Brown Fee #9 | 4,900 | 00344367 |
| 740510 | May 22, 2012 | May 22, 2012 | Sandridge Expl. and Prod., LLC | WH Bush B #24 | 4,900 | 00344366 |
| 738269 | May 22, 2012 | May 22, 2012 | OXY USA Inc. | Warhawk #2007 | 12,500 | 00344247 |
| 740329 | May 18, 2012 | May 18, 2012 | Pioneer Natural Res. USA, Inc. | University '6-17' #5D | 6,400 | 00344361 |
| 740250 | May 18, 2012 | May 18, 2012 | Sandridge Expl. and Prod., LLC | Bessie Ola 16 #2 | 7,750 | 00344362 |
| 740250Amendment | May 18, 2012 | May 18, 2012 | Sandridge Expl. and Prod., LLC | Bessie Ola 16 #2 | 7,750 | 00344362 |
| 740137 | May 18, 2012 | May 18, 2012 | Sandridge Expl. and Prod., LLC | Gindorf #10 | 4,900 | 00344353 |
| 740135 | May 18, 2012 | May 18, 2012 | Sandridge Expl. and Prod., LLC | Gindorf #9 | 4,900 | 00344352 |
| 738972 | May 18, 2012 | May 18, 2012 | Sandridge Expl. and Prod., LLC | Munger Nix a LZS #58 | 4,900 | 00344358 |
| 738048 | May 18, 2012 | May 18, 2012 | OXY USA Inc. | Mabee 139 #4712 | 12,500 | 00344225 |
| 738047 | May 18, 2012 | May 18, 2012 | OXY USA Inc. | Mabee 139 #4314 | 13,000 | 00344214 |
| 738046 | May 18, 2012 | May 18, 2012 | OXY USA Inc. | Invader #1105 | 11,900 | 00344226 |
| 738045 | May 18, 2012 | May 18, 2012 | OXY USA Inc. | Mabee 140A #4504 | 12,500 | 00344215 |
| 740831 | May 17, 2012 | May 17, 2012 | Forge Energy, LLC | Fisher 5 #2HH | 9,500 | 00344395 |
| 740205 | May 17, 2012 | May 17, 2012 | W&T Offshore, Inc. | Universtiy 6-23 #1 | 12,000 | 00344359 |
| 740178 | May 17, 2012 | May 17, 2012 | Sandridge Expl. and Prod., LLC | Thornberry '4W' #23 | 5,000 | 00344360 |
| 740175 | May 17, 2012 | May 17, 2012 | Sandridge Expl. and Prod., LLC | Thornberry '4W' #21 | 5,000 | 00344356 |
| 740174 | May 17, 2012 | May 17, 2012 | Sandridge Expl. and Prod., LLC | Thornberry '4W' #20 | 5,000 | 00344354 |
| 740133 | May 17, 2012 | May 17, 2012 | Sandridge Expl. and Prod., LLC | Zeismer #20 | 4,900 | 00344345 |
| 740132 | May 17, 2012 | May 17, 2012 | Sandridge Expl. and Prod., LLC | Zeismer #19 | 4,900 | 00344344 |
| 740131 | May 17, 2012 | May 17, 2012 | Sandridge Expl. and Prod., LLC | Zeismer #18 | 4,900 | 00344343 |
| 740129 | May 17, 2012 | May 17, 2012 | Sandridge Expl. and Prod., LLC | Lindley-Remuda B #2 | 4,900 | 00344351 |
| 740128 | May 17, 2012 | May 17, 2012 | Sandridge Expl. and Prod., LLC | Lindley-Remuda B #1 | 4,900 | 00344350 |
| 739944 | May 17, 2012 | May 17, 2012 | Sandridge Expl. and Prod., LLC | Lockhart & Brown #13 | 4,900 | 00344346 |
| 739943 | May 17, 2012 | May 17, 2012 | Sandridge Expl. and Prod., LLC | Zeismer #17 | 4,900 | 00344341 |
| 739943Amendment | May 17, 2012 | May 17, 2012 | Sandridge Expl. and Prod., LLC | Zeismer #17 | 4,900 | 00344341 |
| 740011 | May 16, 2012 | May 16, 2012 | Chesapeake Operating, Inc. | University 8-9 #5 | 12,000 | 00344349 |
| 740011Amendment | May 16, 2012 | May 16, 2012 | Chesapeake Operating, Inc. | University 8-9 #5 | 12,000 | 00344349 |
| 739962 | May 16, 2012 | May 16, 2012 | Pacesetter Energy, LLC | Welborn 20 #2HH | 5,000 | 00344348 |
| 739961 | May 16, 2012 | May 16, 2012 | Pacesetter Energy, LLC | Welborn 20 #1HH | 5,000 | 00344347 |
| 739946 | May 16, 2012 | May 16, 2012 | Sandridge Expl. and Prod., LLC | Thornberry 4 #26 | 4,900 | 00344340 |
| 739945 | May 16, 2012 | May 16, 2012 | Sandridge Expl. and Prod., LLC | Thornberry, MA Consolidated III #50 | 4,900 | 00344342 |
| 739915 | May 16, 2012 | May 16, 2012 | Sandridge Expl. and Prod., LLC | Cities #11 | 4,900 | 00344332 |
| 739914 | May 16, 2012 | May 16, 2012 | Sandridge Expl. and Prod., LLC | Cities #9 | 4,900 | 00344331 |
| 739798 | May 16, 2012 | May 16, 2012 | Sandridge Expl. and Prod., LLC | Ranch 5 #28 | 4,900 | 00344338 |
| 739652 | May 16, 2012 | May 16, 2012 | Sandridge Expl. and Prod., LLC | Lindley-Remuda #58 | 4,900 | 00344322 |
| 737764 | May 16, 2012 | May 16, 2012 | Henry Resources LLC | Casselman #3234 | 12,500 | 00344195 |
| 739912 | May 15, 2012 | May 15, 2012 | Sandridge Expl. and Prod., LLC | Cities #8 | 4,900 | 00344330 |
| 739844 | May 15, 2012 | May 15, 2012 | Williams, Clayton Energy, Inc. | Kolb B #2 | 11,300 | 00344334 |
| 739797 | May 15, 2012 | May 15, 2012 | Sandridge Expl. and Prod., LLC | Thornberry-LZS #38 | 4,900 | 00344337 |
| 739794 | May 15, 2012 | May 15, 2012 | Sandridge Expl. and Prod., LLC | Thornberry 5 #21 | 4,900 | 00344339 |
| 739792 | May 15, 2012 | May 15, 2012 | Sandridge Expl. and Prod., LLC | Thornberry 5 #11 | 4,900 | 00344335 |
| 739786 | May 15, 2012 | May 15, 2012 | Sandridge Expl. and Prod., LLC | Thornberry 5 #13 | 4,900 | 00344333 |
| 739706 | May 15, 2012 | May 15, 2012 | Sandridge Expl. and Prod., LLC | Lindley 7 #9 | 4,900 | 00344328 |
| 739702 | May 15, 2012 | May 15, 2012 | Sandridge Expl. and Prod., LLC | Thornberry J #9 | 4,900 | 00344327 |
| 739702Amendment | May 15, 2012 | May 15, 2012 | Sheridan Production Company, LLC | Thornberry F #9B | 4,900 | 00344327 |
| 739689 | May 15, 2012 | May 15, 2012 | Sandridge Expl. and Prod., LLC | Thornberry-LZS #37 | 4,900 | 00344324 |
| 737551 | May 15, 2012 | May 15, 2012 | Henry Resources LLC | Casselman #3235 | 12,500 | 00344187 |
| 737518 | May 15, 2012 | May 15, 2012 | Sandridge Expl. and Prod., LLC | Ashton-NWS #14 | 4,900 | 00344186 |
| 739690 | May 14, 2012 | May 14, 2012 | Sandridge Expl. and Prod., LLC | Thornberry, MA Consolidated III #43 | 4,900 | 00344325 |
| 739686 | May 14, 2012 | May 14, 2012 | Sandridge Expl. and Prod., LLC | Thornberry-LZS #27 | 4,900 | 00344326 |
| 739683 | May 14, 2012 | May 14, 2012 | Sandridge Expl. and Prod., LLC | Thornberry, MA Consolidated III #49 | 4,900 | 00344323 |
| 739354 | May 14, 2012 | May 14, 2012 | OXY USA Inc. | Mustang A #3505 | 13,500 | 00344312 |
| 738026 | May 14, 2012 | May 14, 2012 | Discovery Operating, Inc. | University 11 #9 | 7,999 | 00344272 |
| 739648 | May 11, 2012 | May 11, 2012 | Sandridge Expl. and Prod., LLC | Lindley-Remuda #56 | 4,900 | 00344321 |
| 739648Amendment | May 11, 2012 | May 11, 2012 | Sandridge Expl. and Prod., LLC | Lindley-Remuda #56 | 5,200 | 00344321 |
| 739436 | May 10, 2012 | May 10, 2012 | Sandridge Expl. and Prod., LLC | JT Lindley-Lynne #61 | 4,900 | 00344319 |
| 739368 | May 10, 2012 | May 10, 2012 | Sandridge Expl. and Prod., LLC | Ranch 5 #29 | 4,900 | 00344314 |
| 739367 | May 10, 2012 | May 10, 2012 | Sandridge Expl. and Prod., LLC | Thornberry-NWS #49 | 4,900 | 00344318 |
| 739365 | May 10, 2012 | May 10, 2012 | Sandridge Expl. and Prod., LLC | Thornberry-NWS #50 | 4,900 | 00344317 |
| 739364 | May 10, 2012 | May 10, 2012 | Sandridge Expl. and Prod., LLC | Kuykendall, J W #15 | 4,900 | 00344313 |
| 739303 | May 10, 2012 | May 10, 2012 | XTO Energy Inc. | University BLK 9 #7QHH | 10,835 | 00338556 |