| 739303Amendment | May 10, 2012 | May 10, 2012 | XTO Energy Inc. | University BLK 9 #7Q | 10,835 | 00338556 |
| 739308 | May 9, 2012 | May 9, 2012 | Sandridge Expl. and Prod., LLC | Kuykendall, J W #16 | 4,900 | 00344309 |
| 739300 | May 9, 2012 | May 9, 2012 | Sandridge Expl. and Prod., LLC | Thornberry 5 #19 | 4,900 | 00344308 |
| 739288 | May 9, 2012 | May 9, 2012 | Sandridge Expl. and Prod., LLC | University 22A #5 | 7,200 | 00344307 |
| 739152 | May 9, 2012 | May 9, 2012 | Sandridge Expl. and Prod., LLC | Munger Nix a LZS #61 | 4,900 | 00344306 |
| 739151 | May 9, 2012 | May 9, 2012 | Sandridge Expl. and Prod., LLC | JT Lindley-Lynne #49 | 4,900 | 00344305 |
| 739150 | May 9, 2012 | May 9, 2012 | Sandridge Expl. and Prod., LLC | JT Lindley-Lynne #48 | 4,900 | 00344304 |
| 739147 | May 9, 2012 | May 9, 2012 | Sandridge Expl. and Prod., LLC | JT Lindley-Lynne #47 | 4,900 | 00344303 |
| 739147Amendment | May 9, 2012 | May 9, 2012 | Sandridge Expl. and Prod., LLC | JT Lindley-Lynne #47 | 4,900 | 00344303 |
| 738960 | May 9, 2012 | May 9, 2012 | Reliance Energy, Inc. | Mabee 240 #1410 | 13,000 | 00344296 |
| 738960Amendment | May 9, 2012 | May 9, 2012 | Reliance Energy, Inc. | Mabee 240 #1410 | 13,000 | 00344296 |
| 737112 | May 9, 2012 | May 9, 2012 | OXY USA Inc. | Warhawk #2010 | 12,500 | 00344164 |
| 739028 | May 8, 2012 | May 8, 2012 | Sandridge Expl. and Prod., LLC | Thornberry D #9 | 4,900 | 00344295 |
| 739018 | May 8, 2012 | May 8, 2012 | Sandridge Expl. and Prod., LLC | Lindley-Remuda #59 | 4,900 | 00344298 |
| 738983 | May 8, 2012 | May 8, 2012 | Sandridge Expl. and Prod., LLC | South Fuhrman Mascho Unit #8117 | 5,000 | 00344288 |
| 738951 | May 8, 2012 | May 8, 2012 | Reliance Energy, Inc. | Mabee 240 #1311 | 13,000 | 00344290 |
| 738662 | May 8, 2012 | May 8, 2012 | Reliance Energy, Inc. | Mabee 240 #2719 | 13,000 | 00344269 |
| 737791 | May 8, 2012 | May 8, 2012 | BTA Oil Producers, LLC | University -D- #10 | 10,000 | 00344197 |
| 737093 | May 8, 2012 | May 8, 2012 | Pioneer Natural Res. USA, Inc. | University '6-39' #10 | 12,200 | 00344162 |
| 738967 | May 7, 2012 | May 7, 2012 | Sandridge Expl. and Prod., LLC | Munger Nix a LZS #59 | 4,900 | 00344287 |
| 738961 | May 7, 2012 | May 7, 2012 | Sandridge Expl. and Prod., LLC | Munger Nix a LZS #85 | 4,900 | 00344286 |
| 738959 | May 7, 2012 | May 7, 2012 | Reliance Energy, Inc. | Mabee 240 #1405 | 13,000 | 00344293 |
| 738956 | May 7, 2012 | May 7, 2012 | Reliance Energy, Inc. | Mabee 240 #1326 | 13,000 | 00344315 |
| 738955 | May 7, 2012 | May 7, 2012 | Reliance Energy, Inc. | Mabee 240 #1322 | 13,000 | 00344300 |
| 738954 | May 7, 2012 | May 7, 2012 | Sandridge Expl. and Prod., LLC | JT Lindley-Lynne A #7 | 4,900 | 00344311 |
| 738952 | May 7, 2012 | May 7, 2012 | Reliance Energy, Inc. | Mabee 240 #1317 | 13,000 | 00344291 |
| 738386 | May 7, 2012 | May 7, 2012 | Discovery Operating, Inc. | University 11A #9 | 7,999 | 00344316 |
| 736919 | May 7, 2012 | May 7, 2012 | OXY USA Inc. | Mabee 139 #4704 | 12,500 | 00344157 |
| 736597 | May 7, 2012 | May 7, 2012 | OXY USA Inc. | Mustang #3411 | 12,500 | 00344140 |
| 738122 | May 5, 2012 | May 5, 2012 | COG Operating LLC | University Camille #106 | 12,000 | 00344217 |
| 738868 | May 4, 2012 | May 4, 2012 | COG Operating LLC | Bitler-Lowe Clearfork Unit #27 | 7,300 | 00344284 |
| 738866 | May 4, 2012 | May 4, 2012 | COG Operating LLC | Bitler-Lowe Clearfork Unit #26 | 7,300 | 00344283 |
| 738865 | May 4, 2012 | May 4, 2012 | Sandridge Expl. and Prod., LLC | Thornberry 7N #14 | 4,900 | 00344282 |
| 738864 | May 4, 2012 | May 4, 2012 | COG Operating LLC | Bitler-Lowe Clearfork Unit #25 | 7,300 | 00344281 |
| 738862 | May 4, 2012 | May 4, 2012 | Sandridge Expl. and Prod., LLC | Thornberry-LZS #43 | 4,900 | 00344280 |
| 738853 | May 4, 2012 | May 4, 2012 | Sandridge Expl. and Prod., LLC | JT Lindley-Lynne #58 | 4,900 | 00344277 |
| 738850 | May 4, 2012 | May 4, 2012 | Sandridge Expl. and Prod., LLC | Lindley 16 #8 | 4,900 | 00344276 |
| 738849 | May 4, 2012 | May 4, 2012 | Sandridge Expl. and Prod., LLC | Munger Nix B #11 | 4,900 | 00344274 |
| 738847 | May 4, 2012 | May 4, 2012 | Sandridge Expl. and Prod., LLC | Munger Nix B #12 | 4,900 | 00344275 |
| 738834 | May 4, 2012 | May 4, 2012 | Sandridge Expl. and Prod., LLC | University Consolidated V #2014 | 7,300 | 00344273 |
| 738825 | May 4, 2012 | May 4, 2012 | Sandridge Expl. and Prod., LLC | Thornberry, MA Consolidated II #45 | 4,900 | 00344271 |
| 736613 | May 4, 2012 | May 4, 2012 | OXY USA Inc. | Mustang #3416 | 12,500 | 00344141 |
| 738795 | May 3, 2012 | May 3, 2012 | Chesapeake Operating, Inc. | University 6-21 #1 | 12,000 | 00344270 |
| 738661 | May 3, 2012 | May 3, 2012 | Reliance Energy, Inc. | Mabee 240 #2805 | 13,000 | 00344268 |
| 738656 | May 3, 2012 | May 3, 2012 | Reliance Energy, Inc. | Mabee 240 #2715 | 13,000 | 00344267 |
| 738007 | May 3, 2012 | May 3, 2012 | Clabber Hill Road SWD, LLC | O B Holt #701 | 13,067 | 00338332 |
| 738659 | May 2, 2012 | May 2, 2012 | Reliance Energy, Inc. | Mabee 240 #2728 | 13,000 | 00344263 |
| 738654 | May 2, 2012 | May 2, 2012 | Reliance Energy, Inc. | Mabee 240 #2708 | 13,000 | 00344266 |
| 738652 | May 2, 2012 | May 2, 2012 | Reliance Energy, Inc. | Mabee 240 #1217 | 13,000 | 00344265 |
| 738651 | May 2, 2012 | May 2, 2012 | Reliance Energy, Inc. | Mabee 240 #1214 | 13,000 | 00344264 |
| 738594 | May 2, 2012 | May 2, 2012 | Chesapeake Operating, Inc. | Mabee M #1 | 12,000 | 00344261 |
| 738869 | May 1, 2012 | May 1, 2012 | COG Operating LLC | Bitler-Lowe Clearfork Unit #28 | 7,300 | 00344254 |
| 738576 | May 1, 2012 | May 1, 2012 | Bulldog Operating Company | Sage #2 | 8,000 | 00344260 |
| 738574 | May 1, 2012 | May 1, 2012 | Bulldog Operating Company | Ross #1 | 8,000 | 00344258 |
| 738310 | May 1, 2012 | May 1, 2012 | Sandridge Expl. and Prod., LLC | Parker #10 | 4,900 | 00344297 |
| 738443 | Apr 30, 2012 | Apr 30, 2012 | Pioneer Natural Res. USA, Inc. | University '7-42' #6D | 6,400 | 00344255 |
| 738359 | Apr 30, 2012 | Apr 30, 2012 | Forge Energy, LLC | Fisher 9 #1HH | 9,500 | 00344278 |
| 738359Amendment | Apr 30, 2012 | Apr 30, 2012 | Forge Energy, LLC | Fisher 9 #1HH | 4,600 | 00344278 |
| 737396 | Apr 28, 2012 | Apr 28, 2012 | Bopco, L.P. | University 42 #4 | 11,800 | 00344229 |
| 738528 | Apr 27, 2012 | Apr 27, 2012 | Energen Resources Corporation | Block 10 Fuhrman Mascho Unit #918 | 4,900 | 00344242 |
| 738526 | Apr 27, 2012 | Apr 27, 2012 | Energen Resources Corporation | Block 10 Fuhrman Mascho Unit #914 | 4,900 | 00344241 |
| 738522 | Apr 27, 2012 | Apr 27, 2012 | Energen Resources Corporation | Block 10 Fuhrman Mascho Unit #324 | 4,900 | 00344240 |
| 738520 | Apr 27, 2012 | Apr 27, 2012 | Energen Resources Corporation | Block 10 Fuhrman Mascho Unit #906 | 4,900 | 00344239 |
| 738519 | Apr 27, 2012 | Apr 27, 2012 | Energen Resources Corporation | Block 10 Fuhrman Mascho Unit #916 | 4,900 | 00344237 |
| 738347 | Apr 27, 2012 | Apr 27, 2012 | Sandridge Expl. and Prod., LLC | Thornberry 5E #6 | 4,900 | 00344246 |
| 738345 | Apr 27, 2012 | Apr 27, 2012 | Sandridge Expl. and Prod., LLC | WT Ford #18 | 4,900 | 00344245 |
| 738343 | Apr 27, 2012 | Apr 27, 2012 | Sandridge Expl. and Prod., LLC | Phillips University B #5 | 4,900 | 00344244 |
| 738335 | Apr 27, 2012 | Apr 27, 2012 | Conocophillips Company | University Andrews #213 | 8,900 | 00344249 |
| 738335Amendment | Apr 27, 2012 | Apr 27, 2012 | Conocophillips Company | University Andrews #213 | 8,900 | 00344249 |
| 738302 | Apr 27, 2012 | Apr 27, 2012 | Sandridge Expl. and Prod., LLC | Lindley-Remuda #47 | 4,900 | 00344238 |
| 738282 | Apr 26, 2012 | Apr 26, 2012 | Sandridge Expl. and Prod., LLC | South Fuhrman Mascho Unit #8102 | 5,000 | 00344236 |
| 738251 | Apr 26, 2012 | Apr 26, 2012 | Windsor Permian LLC | Big Max 26 NW #5 | 11,500 | 00344235 |
| 738244 | Apr 26, 2012 | Apr 26, 2012 | Sandridge Expl. and Prod., LLC | Lindley-Remuda #70 | 4,900 | 00344233 |
| 738242 | Apr 26, 2012 | Apr 26, 2012 | Sandridge Expl. and Prod., LLC | Munger Nix A #39 | 4,900 | 00344243 |
| 738240 | Apr 26, 2012 | Apr 26, 2012 | Sandridge Expl. and Prod., LLC | University 6N #15 | 4,900 | 00344232 |
| 738235 | Apr 26, 2012 | Apr 26, 2012 | Conocophillips Company | University Andrews #209 | 8,800 | 00344234 |
| 738235Amendment | Apr 26, 2012 | Apr 26, 2012 | Conocophillips Company | University Andrews #209 | 8,800 | 00344234 |
| 738207 | Apr 26, 2012 | Apr 26, 2012 | Vin Fisher Operating, Inc. | Simmons, Hardin #2 | 6,000 | 00344230 |
| 737788 | Apr 26, 2012 | Apr 26, 2012 | BTA Oil Producers, LLC | University -D- #9 | 10,000 | 00344196 |
| 737788Amendment | Apr 26, 2012 | Apr 26, 2012 | BTA Oil Producers, LLC | University -D- #9 | 10,000 | 00344196 |
| 737511 | Apr 26, 2012 | Apr 26, 2012 | Sandridge Expl. and Prod., LLC | Thornberry 7 #11 | 4,900 | 00344262 |
| 738110 | Apr 25, 2012 | Apr 25, 2012 | COG Operating LLC | University Frances #4010 | 12,000 | 00344221 |
| 736191 | Apr 25, 2012 | Apr 25, 2012 | OXY USA Inc. | Mustang #3412 | 12,500 | 00344119 |
| 736191Amendment | Apr 25, 2012 | Apr 25, 2012 | OXY USA Inc. | Mustang #3412 | 12,500 | 00344119 |
| 738133 | Apr 24, 2012 | Apr 24, 2012 | COG Operating LLC | University Ruth #411 | 12,000 | 00344223 |
| 738088 | Apr 24, 2012 | Apr 24, 2012 | Sandridge Expl. and Prod., LLC | South Fuhrman Mascho Unit #5000 | 5,000 | 00344228 |
| 738076 | Apr 24, 2012 | Apr 24, 2012 | COG Operating LLC | University Ruth #423 | 12,000 | 00344222 |
| 738076Amendment | Apr 24, 2012 | Apr 24, 2012 | COG Operating LLC | University Ruth #423 | 12,000 | 00344222 |
| 738031 | Apr 24, 2012 | Apr 24, 2012 | Apache Corporation | Three Bar Shallow Unit #105HH | 7,170 | 00344224 |
| 737934 | Apr 24, 2012 | Apr 24, 2012 | Sandridge Expl. and Prod., LLC | University 11-26 #3HH | 5,950 | 00306522 |
| 737822 | Apr 24, 2012 | Apr 24, 2012 | Sandridge Expl. and Prod., LLC | Thornberry -G- #16 | 4,900 | 00344198 |
| 738135 | Apr 23, 2012 | Apr 23, 2012 | COG Operating LLC | Miranda #1707 | 12,000 | 00344216 |
| 738107 | Apr 23, 2012 | Apr 23, 2012 | COG Operating LLC | University Camille #113 | 12,000 | 00344219 |
| 737974 | Apr 23, 2012 | Apr 23, 2012 | Sandridge Expl. and Prod., LLC | University 13-45 #7 | 7,300 | 00344212 |
| 737971 | Apr 23, 2012 | Apr 23, 2012 | Sandridge Expl. and Prod., LLC | University Consolidated VI #1902 | 7,300 | 00344211 |
| 737970 | Apr 23, 2012 | Apr 23, 2012 | Sandridge Expl. and Prod., LLC | University Consolidated IV #3007 | 7,300 | 00344207 |
| 737948 | Apr 23, 2012 | Apr 23, 2012 | Sandridge Expl. and Prod., LLC | Lindley 7 #8 | 4,900 | 00344209 |
| 737946 | Apr 23, 2012 | Apr 23, 2012 | Sandridge Expl. and Prod., LLC | Lindley-Remuda A #1 | 9,000 | 00344206 |
| 737944 | Apr 23, 2012 | Apr 23, 2012 | Sandridge Expl. and Prod., LLC | Lindley-Remuda A #2 | 9,000 | 00344205 |
| 737944Amendment | Apr 23, 2012 | Apr 23, 2012 | Sandridge Expl. and Prod., LLC | Lindley-Remuda #72 | 9,000 | 00344205 |