| 763898Amendment | Jun 13, 2013 | Jun 13, 2013 | Sandridge Expl. and Prod., LLC | University 37 #1 | 5,200 | 00345462 |
| 763891 | Jun 13, 2013 | Jun 13, 2013 | Sandridge Expl. and Prod., LLC | University 48B #2 | 5,200 | 00345463 |
| 763891Amendment | Jun 13, 2013 | Jun 13, 2013 | Sandridge Expl. and Prod., LLC | University 48B #2 | 5,200 | 00345463 |
| 764171 | Jun 12, 2013 | Jun 12, 2013 | Sandridge Expl. and Prod., LLC | University 37 #6 | 5,200 | 00345460 |
| 764171Amendment | Jun 12, 2013 | Jun 12, 2013 | Sandridge Expl. and Prod., LLC | University 37 #6 | 5,200 | 00345460 |
| 764170 | Jun 12, 2013 | Jun 12, 2013 | Sandridge Expl. and Prod., LLC | University 37 #3 | 5,200 | 00345459 |
| 764170Amendment | Jun 12, 2013 | Jun 12, 2013 | Sandridge Expl. and Prod., LLC | University 37 #3 | 5,200 | 00345459 |
| 763888 | Jun 12, 2013 | Jun 12, 2013 | Sandridge Expl. and Prod., LLC | Univesity 13-45 #10 | 5,200 | 00345452 |
| 763883 | Jun 12, 2013 | Jun 12, 2013 | Sandridge Expl. and Prod., LLC | Prichard #5 | 5,200 | 00345445 |
| 763883Amendment | Jun 12, 2013 | Jun 12, 2013 | Sandridge Expl. and Prod., LLC | Prichard #5 | 5,200 | 00345445 |
| 763882 | Jun 12, 2013 | Jun 12, 2013 | Sandridge Expl. and Prod., LLC | Prichard #4 | 5,200 | 00345444 |
| 763800 | Jun 12, 2013 | Jun 12, 2013 | Sandridge Expl. and Prod., LLC | University 1801 #10 | 5,200 | 00345443 |
| 763677 | Jun 12, 2013 | Jun 12, 2013 | Sandridge Expl. and Prod., LLC | University 1801 #6 | 5,200 | 00345440 |
| 764150 | Jun 11, 2013 | Jun 11, 2013 | Apache Corporation | Bakke Unit #168 | 9,800 | 00345458 |
| 764144 | Jun 11, 2013 | Jun 11, 2013 | Apache Corporation | Bakke Unit #167 | 9,800 | 00345461 |
| 764143 | Jun 11, 2013 | Jun 11, 2013 | Apache Corporation | Bakke Unit #166 | 9,800 | 00345457 |
| 764143Amendment | Jun 11, 2013 | Jun 11, 2013 | Apache Corporation | Bakke Unit #166 | 9,800 | 00345457 |
| 764137 | Jun 11, 2013 | Jun 11, 2013 | Apache Corporation | Bakke Unit #165 | 9,800 | 00345456 |
| 764106 | Jun 11, 2013 | Jun 11, 2013 | Athlon Energy Operating LLC | University 8-3 #4 | 12,000 | 00345455 |
| 763674 | Jun 11, 2013 | Jun 11, 2013 | Sandridge Expl. and Prod., LLC | University 48C #1 | 5,200 | 00345438 |
| 763674Amendment | Jun 11, 2013 | Jun 11, 2013 | Sandridge Expl. and Prod., LLC | University 48C #1 | 6,999 | 00345438 |
| 763452 | Jun 11, 2013 | Jun 11, 2013 | Fivestones Energy LLC | Texas Tech University #5 | 13,500 | 00345435 |
| 763451 | Jun 11, 2013 | Jun 11, 2013 | Fivestones Energy LLC | Texas Tech University #4 | 13,500 | 00345434 |
| 762172 | Jun 11, 2013 | Jun 11, 2013 | OXY USA Inc. | Mabee 139 #4613 | 12,500 | 00345366 |
| 761905 | Jun 11, 2013 | Jun 11, 2013 | OXY USA Inc. | Mabee 140A #4505 | 12,500 | 00345342 |
| 763463 | Jun 10, 2013 | Jun 10, 2013 | Sandridge Expl. and Prod., LLC | University 13-35 #11 | 5,200 | 00345433 |
| 763455 | Jun 10, 2013 | Jun 10, 2013 | Sandridge Expl. and Prod., LLC | Univesity 13-35 #9 | 5,200 | 00345431 |
| 763450 | Jun 10, 2013 | Jun 10, 2013 | Sandridge Expl. and Prod., LLC | University 13-35 #8 | 5,200 | 00345430 |
| 763449 | Jun 10, 2013 | Jun 10, 2013 | Sandridge Expl. and Prod., LLC | University 13-35 #7 | 5,200 | 00345429 |
| 763976 | Jun 7, 2013 | Jun 7, 2013 | Sheridan Production Company, LLC | University Emma Consolidated 1FK #2 | 4,555 | 00301686 |
| 763345 | Jun 7, 2013 | Jun 7, 2013 | Sandridge Expl. and Prod., LLC | University 47A #19 | 5,200 | 00345428 |
| 763338 | Jun 7, 2013 | Jun 7, 2013 | Sandridge Expl. and Prod., LLC | University 1801 #12 | 5,200 | 00345426 |
| 763335 | Jun 7, 2013 | Jun 7, 2013 | Sandridge Expl. and Prod., LLC | University H #8 | 5,200 | 00345425 |
| 763833 | Jun 6, 2013 | Jun 6, 2013 | COG Operating LLC | Billie #1802 | 12,000 | 00345446 |
| 763675 | Jun 6, 2013 | Jun 6, 2013 | Sandridge Expl. and Prod., LLC | University 14-16 #32C | 5,200 | 00345439 |
| 761704 | Jun 6, 2013 | Jun 6, 2013 | Apache Corporation | Three Bar Shallow Unit #119HH | 8,000 | 00345333 |
| 757754 | Jun 6, 2013 | Jun 6, 2013 | OXY USA WTP LP | North Dollarhide Unit #702 | 8,500 | 00345212 |
| 763644 | Jun 5, 2013 | Jun 5, 2013 | XTO Energy Inc. | Means San Andres Unit #6654 | 5,400 | 00345441 |
| 761266 | Jun 5, 2013 | Jun 5, 2013 | Sandridge Expl. and Prod., LLC | University 13-45 #8 | 7,300 | 00344587 |
| 742028 | Jun 5, 2013 | Jun 5, 2013 | Sandridge Expl. and Prod., LLC | Argo Knight #26 | 4,900 | 00344459 |
| 742028Amendment | Jun 5, 2013 | Jun 5, 2013 | Sandridge Expl. and Prod., LLC | Argo Knight #26 | 5,200 | 00344459 |
| 763342 | Jun 4, 2013 | Jun 4, 2013 | Sandridge Expl. and Prod., LLC | University 48A #2 | 5,200 | 00345427 |
| 763192 | Jun 4, 2013 | Jun 4, 2013 | Sandridge Expl. and Prod., LLC | University Lands 13-46 #33 | 5,200 | 00345442 |
| 763620 | Jun 3, 2013 | Jun 3, 2013 | RSP Permian, LLC | Cross Bar Ranch #2011 | 12,000 | 00345437 |
| 761257 | Jun 3, 2013 | Jun 3, 2013 | Sandridge Expl. and Prod., LLC | University 13-45 #7 | 7,300 | 00344212 |
| 763520 | May 31, 2013 | May 31, 2013 | Sandridge Expl. and Prod., LLC | University Lands '33E' #331 E | 7,000 | 00335118 |
| 759949 | May 31, 2013 | May 31, 2013 | OXY USA Inc. | Universitycarol #4 | 11,500 | 00345265 |
| 763439 | May 30, 2013 | May 30, 2013 | Sheridan Production Company, LLC | University -30- #13A | 4,555 | 00335470 |
| 763397 | May 30, 2013 | May 30, 2013 | Apache Corporation | Three Bar San Andres #53 | 8,270 | 00330108 |
| 763210 | May 30, 2013 | May 30, 2013 | Sandridge Expl. and Prod., LLC | University a 4318 #8 | 5,200 | 00345424 |
| 763196 | May 30, 2013 | May 30, 2013 | Sandridge Expl. and Prod., LLC | University Lands 13-46 #34 | 5,200 | 00345422 |
| 763185 | May 30, 2013 | May 30, 2013 | Sandridge Expl. and Prod., LLC | University 14-16 #30C | 5,200 | 00345421 |
| 763183 | May 30, 2013 | May 30, 2013 | Fasken Oil and Ranch, Ltd. | Fee 'AR' SWD #1 | 15,200 | 00345411 |
| 763142 | May 30, 2013 | May 30, 2013 | Texland Petroleum, L.P. | Bella #2HH | 4,600 | 00345407 |
| 763559 | May 29, 2013 | May 29, 2013 | Ring Energy, Inc. | Fisher B #12 | 5,100 | 00345420 |
| 763559Amendment | May 29, 2013 | May 29, 2013 | Ring Energy, Inc. | Fisher B #12 | 5,100 | 00345420 |
| 763558 | May 29, 2013 | May 29, 2013 | Ring Energy, Inc. | Fisher B #11 | 5,100 | 00345419 |
| 763545 | May 29, 2013 | May 29, 2013 | Ring Energy, Inc. | Fisher B #10 | 5,100 | 00345418 |
| 763543 | May 29, 2013 | May 29, 2013 | Ring Energy, Inc. | Fisher B #9 | 5,100 | 00345417 |
| 763542 | May 29, 2013 | May 29, 2013 | Ring Energy, Inc. | Fisher B #8 | 5,100 | 00345416 |
| 763540 | May 29, 2013 | May 29, 2013 | Ring Energy, Inc. | Fisher B #7 | 5,100 | 00345415 |
| 763534 | May 29, 2013 | May 29, 2013 | Ring Energy, Inc. | Fisher B #4 | 5,100 | 00345414 |
| 763531 | May 29, 2013 | May 29, 2013 | Ring Energy, Inc. | Fisher B #3 | 5,100 | 00345412 |
| 763380 | May 29, 2013 | May 29, 2013 | Ring Energy, Inc. | Fisher B #6 | 5,100 | 00345413 |
| 763377 | May 29, 2013 | May 29, 2013 | Ring Energy, Inc. | Fisher B #5 | 5,100 | 00345402 |
| 763369 | May 29, 2013 | May 29, 2013 | Ring Energy, Inc. | Fisher B #2 | 5,100 | 00345401 |
| 763365 | May 29, 2013 | May 29, 2013 | Ring Energy, Inc. | Fisher B #1 | 5,100 | 00345400 |
| 763308 | May 29, 2013 | May 29, 2013 | Diamondback E&P LLC | UL Viper #601HH | 9,000 | 00345403 |
| 763293 | May 29, 2013 | May 29, 2013 | Legacy Reserves Operating LP | University Consolidated Xiii #13 | 12,000 | 00345399 |
| 763118 | May 29, 2013 | May 29, 2013 | Sandridge Expl. and Prod., LLC | University A #13 | 5,200 | 00345395 |
| 763100 | May 29, 2013 | May 29, 2013 | Sandridge Expl. and Prod., LLC | Munger Nix #176 | 5,200 | 00345397 |
| 763072 | May 29, 2013 | May 29, 2013 | Texland Petroleum, L.P. | Elena #8 | 6,200 | 00345410 |
| 759950 | May 29, 2013 | May 29, 2013 | Conocophillips Company | University Andrews #270 | 8,500 | 00345276 |
| 763269 | May 28, 2013 | May 28, 2013 | Sandridge Expl. and Prod., LLC | University 13-39 SWD #1 | 13,000 | 00345398 |
| 763121 | May 24, 2013 | May 24, 2013 | Sandridge Expl. and Prod., LLC | University Lands '13-46' #32 | 4,900 | 00345394 |
| 763123 | May 23, 2013 | May 23, 2013 | Sandridge Expl. and Prod., LLC | University 48A #1 | 5,200 | 00345396 |
| 763120 | May 23, 2013 | May 23, 2013 | Sandridge Expl. and Prod., LLC | University a 4318 #12 | 5,200 | 00345393 |
| 763114 | May 23, 2013 | May 23, 2013 | Sandridge Expl. and Prod., LLC | University H #12 | 5,200 | 00345391 |
| 763109 | May 23, 2013 | May 23, 2013 | Sandridge Expl. and Prod., LLC | University 14-16 #31C | 5,200 | 00345390 |
| 763097 | May 23, 2013 | May 23, 2013 | Sandridge Expl. and Prod., LLC | Munger Nix #165 | 5,200 | 00345392 |
| 763097Amendment | May 23, 2013 | May 23, 2013 | Sandridge Expl. and Prod., LLC | Munger Nix #165 | 5,200 | 00345392 |
| 762998 | May 23, 2013 | May 23, 2013 | Legacy Reserves Operating LP | University Consolidated Xiii #12 | 12,000 | 00345388 |
| 762196 | May 23, 2013 | May 23, 2013 | Reliance Energy, Inc. | Mabee 240B #1620 | 13,000 | 00345350 |
| 763022 | May 22, 2013 | May 22, 2013 | XTO Energy Inc. | Means San Andres Unit #962A | 5,400 | 00345389 |
| 763022Amendment | May 22, 2013 | May 22, 2013 | XTO Energy Inc. | Means San Andres Unit #962A | 5,400 | 00345389 |
| 762987 | May 22, 2013 | May 22, 2013 | Legacy Reserves Operating LP | University Consolidated Xiii #11 | 12,000 | 00345387 |
| 762965 | May 22, 2013 | May 22, 2013 | Legacy Reserves Operating LP | State of Texas -AE- #3 | 12,000 | 00345386 |
| 762581 | May 20, 2013 | May 20, 2013 | Reliance Energy, Inc. | Mabee 240C #133 | 13,000 | 00345377 |
| 762487 | May 20, 2013 | May 20, 2013 | Sandridge Expl. and Prod., LLC | Nix 19 #3 | 5,200 | 00345385 |
| 762485 | May 20, 2013 | May 20, 2013 | Sandridge Expl. and Prod., LLC | Munger Nix A #67 | 5,200 | 00345384 |
| 762755 | May 17, 2013 | May 17, 2013 | Apache Corporation | Three Bar Shallow Unit #108HH | 8,000 | 00345383 |
| 762711 | May 17, 2013 | May 17, 2013 | RSP Permian, LLC | Cross Bar Ranch #807 | 12,000 | 00345382 |
| 762697 | May 17, 2013 | May 17, 2013 | Sandridge Expl. and Prod., LLC | Nix 20 LZS #20 | 5,200 | 00345381 |
| 762691 | May 17, 2013 | May 17, 2013 | Sandridge Expl. and Prod., LLC | Munger Nix #160 | 5,200 | 00345379 |
| 761647 | May 17, 2013 | May 17, 2013 | Mesquite SWD Inc | Stinging Lizard SWD #1 | 6,800 | 00345337 |
| 762693 | May 16, 2013 | May 16, 2013 | Sandridge Expl. and Prod., LLC | Nix 1A #4 | 5,200 | 00345380 |
| 762482 | May 16, 2013 | May 16, 2013 | Sandridge Expl. and Prod., LLC | University 1801 #9 | 5,200 | 00345374 |
| 761741 | May 16, 2013 | May 16, 2013 | W&T Offshore, Inc. | University 6-32 #3 | 11,500 | 00345336 |
| 762688 | May 15, 2013 | May 15, 2013 | Sandridge Expl. and Prod., LLC | Munger Nix #108 | 5,200 | 00345378 |
| 762688Amendment | May 15, 2013 | May 15, 2013 | Sandridge Expl. and Prod., LLC | Munger Nix #108 | 5,200 | 00345378 |