| 763207 | May 30, 2013 | May 30, 2013 | McClure Oil Company, Inc. | Driver '20' #6 | 5,400 | 17335873 |
| 763207Amendment | May 30, 2013 | May 30, 2013 | McClure Oil Company, Inc. | Driver '20' #6 | 5,400 | 17335873 |
| 763448 | May 29, 2013 | May 29, 2013 | Pioneer Natural Res. USA, Inc. | Brunson '35' #8 | 11,425 | 17335867 |
| 763447 | May 29, 2013 | May 29, 2013 | Pioneer Natural Res. USA, Inc. | Brunson '35' #7 | 11,425 | 17335866 |
| 763407 | May 29, 2013 | May 29, 2013 | COG Operating LLC | Currie 'E' State #4101 | 10,800 | 17335870 |
| 763391 | May 29, 2013 | May 29, 2013 | Quantum Resources Management,llc | Glass #5 | 10,250 | 17335869 |
| 763389 | May 29, 2013 | May 29, 2013 | Quantum Resources Management,llc | Glass #4 | 10,250 | 17335868 |
| 762923 | May 29, 2013 | May 29, 2013 | Crownquest Operating, LLC | Norton 27 #3 | 12,000 | 17335865 |
| 761601 | May 29, 2013 | May 29, 2013 | Energen Resources Corporation | Enserch-Frysak #10 | 12,000 | 17335801 |
| 761598 | May 29, 2013 | May 29, 2013 | Energen Resources Corporation | Enserch-Frysak #9 | 12,000 | 17335800 |
| 761585 | May 29, 2013 | May 29, 2013 | Energen Resources Corporation | Enserch-Frysak #8 | 12,000 | 17335799 |
| 761585Amendment | May 29, 2013 | May 29, 2013 | Energen Resources Corporation | Enserch-Frysak #8 | 12,000 | 17335799 |
| 761580 | May 29, 2013 | May 29, 2013 | Energen Resources Corporation | Enserch-Frysak #7 | 12,000 | 17335798 |
| 763257 | May 28, 2013 | May 28, 2013 | Midenergy Operating, LLC | Zant #2602 | 12,500 | 17335863 |
| 762874 | May 24, 2013 | May 24, 2013 | Trilogy Operating, Inc. | JBL #3 | 12,000 | 17335864 |
| 763008 | May 23, 2013 | May 23, 2013 | Apache Corporation | E D Books 2 #17 | 10,600 | 17335857 |
| 763000 | May 23, 2013 | May 23, 2013 | COG Operating LLC | Currie 'a' State #4003 | 9,500 | 17335858 |
| 762905 | May 22, 2013 | May 22, 2013 | COG Operating LLC | Currie 'E' North #3208 | 9,450 | 17335855 |
| 762940 | May 21, 2013 | May 21, 2013 | Pioneer Natural Res. USA, Inc. | Brunson '6' #5 | 11,025 | 17335856 |
| 753601 | May 21, 2013 | May 21, 2013 | McClure Oil Company, Inc. | 'Moc-Seidenberger 29' #4 | 5,400 | 17335521 |
| 762852 | May 20, 2013 | May 20, 2013 | Laredo Petroleum, Inc. | Lpi-Driver 33 #4 | 12,000 | 17335854 |
| 762852Amendment | May 20, 2013 | May 20, 2013 | Laredo Petroleum, Inc. | Lpi-Driver 33 #4 | 12,000 | 17335854 |
| 762762 | May 20, 2013 | May 20, 2013 | Apache Corporation | Bell 22 #9 | 10,700 | 17335850 |
| 762762Amendment | May 20, 2013 | May 20, 2013 | Apache Corporation | Bell 22 #9 | 10,700 | 17335850 |
| 762802 | May 17, 2013 | May 17, 2013 | Laredo Petroleum, Inc. | Lacy Creek 48 #2 | 12,000 | 17335853 |
| 762772 | May 17, 2013 | May 17, 2013 | Athlon Energy Operating LLC | Schwertner, Daniel #5 | 10,700 | 17335852 |
| 762772Amendment | May 17, 2013 | May 17, 2013 | Athlon Holdings LP | Schwertner, Daniel #5 | 10,700 | 17335852 |
| 762768 | May 17, 2013 | May 17, 2013 | Laredo Petroleum, Inc. | Lpi-Driver 28 #4 | 12,000 | 17335851 |
| 762759 | May 17, 2013 | May 17, 2013 | Laredo Petroleum - Dallas, Inc. | Bodine-C- #302HMH | 9,000 | 17335848 |
| 762749 | May 17, 2013 | May 17, 2013 | Williams, Clayton Energy, Inc. | Foster #251 | 10,500 | 17335849 |
| 762749Amendment | May 17, 2013 | May 17, 2013 | Williams, Clayton Energy, Inc. | Foster #251 | 9,800 | 17335849 |
| 762682 | May 16, 2013 | May 16, 2013 | Laredo Petroleum, Inc. | Glass 191 #1 | 12,000 | 17335847 |
| 762682Amendment | May 16, 2013 | May 16, 2013 | Laredo Petroleum, Inc. | Glass 191 #1 | 12,000 | 17335847 |
| 762536 | May 14, 2013 | May 14, 2013 | Pioneer Natural Res. USA, Inc. | Brunson '24' #4 | 11,150 | 17335846 |
| 762536Amendment | May 14, 2013 | May 14, 2013 | Pioneer Natural Res. USA, Inc. | Brunson '24' #4 | 11,150 | 17335846 |
| 761718 | May 14, 2013 | May 14, 2013 | Energen Resources Corporation | Llano -8A- #5 | 12,000 | 17335810 |
| 761671 | May 14, 2013 | May 14, 2013 | Energen Resources Corporation | Llano -8- #5 | 12,000 | 17335809 |
| 762381 | May 10, 2013 | May 10, 2013 | Bluestem Energy Holdings, LLC | Hanson 46 #2 | 13,000 | 17335845 |
| 762381Amendment | May 10, 2013 | May 10, 2013 | Bluestem Energy Holdings, LLC | Hanson 46 #2 | 13,000 | 17335845 |
| 761408 | May 10, 2013 | May 10, 2013 | High Roller Wells, L.L.C. | HRW Glasscock SWD #2 | 4,600 | 17335792 |
| 761408Amendment | May 10, 2013 | May 10, 2013 | High Roller Wells, L.L.C. | HRW Glasscock SWD #2 | 12,500 | 17335792 |
| 762160 | May 9, 2013 | May 9, 2013 | McClure Oil Company, Inc. | Driver '33' #9 | 5,400 | 17335840 |
| 762148 | May 9, 2013 | May 9, 2013 | Apache Corporation | Kestrel 38 #3 | 10,800 | 17335841 |
| 761933 | May 9, 2013 | May 9, 2013 | BTA Oil Producers, LLC | 21202 Vector 30 #1 | 11,100 | 17335822 |
| 761577 | May 9, 2013 | May 9, 2013 | Energen Resources Corporation | Enserch-Frysak #6 | 12,000 | 17335797 |
| 761547 | May 9, 2013 | May 9, 2013 | Energen Resources Corporation | Enserch-Frysak #5 | 12,000 | 17335796 |
| 762111 | May 8, 2013 | May 8, 2013 | Energen Resources Corporation | Daniel -3- #5 | 12,000 | 17335836 |
| 762108 | May 8, 2013 | May 8, 2013 | Energen Resources Corporation | Daniel -3- #4 | 12,000 | 17335835 |
| 762093 | May 8, 2013 | May 8, 2013 | Energen Resources Corporation | Daniel -3- #3 | 12,000 | 17335834 |
| 762007 | May 8, 2013 | May 8, 2013 | Laredo Petroleum - Dallas, Inc. | Barbee C-Barbee B (Alloc) #12HUH | 9,000 | 17335832 |
| 761997 | May 8, 2013 | May 8, 2013 | Energen Resources Corporation | Cole Ranch -41- #8 | 12,000 | 17335827 |
| 760041 | May 8, 2013 | May 8, 2013 | Athlon FE Operating LLC | Frysak 37 #2 | 10,300 | 17335707 |
| 762054 | May 7, 2013 | May 7, 2013 | Energen Resources Corporation | Cole Ranch -45- #2 | 12,000 | 17335829 |
| 762053 | May 7, 2013 | May 7, 2013 | Trilogy Operating, Inc. | PRC #1 | 12,000 | 17335833 |
| 761999 | May 7, 2013 | May 7, 2013 | Energen Resources Corporation | Glass #13 | 11,500 | 17335830 |
| 761999Amendment | May 7, 2013 | May 7, 2013 | Energen Resources Corporation | Glass #13 | 11,500 | 17335830 |
| 760234 | May 7, 2013 | May 7, 2013 | Apache Corporation | Hartley 38 #18 | 11,000 | 17335711 |
| 761975 | May 6, 2013 | May 6, 2013 | Energen Resources Corporation | Cole Ranch -41- #7 | 12,000 | 17335824 |
| 761935 | May 6, 2013 | May 6, 2013 | Energen Resources Corporation | Cole Ranch -41- #5 | 12,000 | 17335821 |
| 761800 | May 6, 2013 | May 6, 2013 | Energen Resources Corporation | Cole Ranch -35- #4009 | 12,000 | 17335826 |
| 760249 | May 6, 2013 | May 6, 2013 | Apache Corporation | Hartley 38 #19HH | 9,800 | 17335712 |
| 761917 | May 3, 2013 | May 3, 2013 | Laredo Petroleum, Inc. | Curry 14 #2 | 12,000 | 17335820 |
| 761883 | May 3, 2013 | May 3, 2013 | Apache Corporation | Heidi 37 #4 | 10,700 | 17335819 |
| 761862 | May 3, 2013 | May 3, 2013 | Energen Resources Corporation | Cole Ranch -40- #4 | 12,000 | 17335817 |
| 761849 | May 3, 2013 | May 3, 2013 | Adventure Expl Partners II, LLC | Calverley 37 #1A | 12,000 | 17335818 |
| 761824 | May 3, 2013 | May 3, 2013 | Energen Resources Corporation | Cole Ranch -35- #4106 | 12,000 | 17335825 |
| 761824Amendment | May 3, 2013 | May 3, 2013 | Energen Resources Corporation | Cole Ranch -35- #4106 | 12,000 | 17335825 |
| 761806 | May 3, 2013 | May 3, 2013 | Hannathon Petroleum, LLC | McCauley 6 #2 | 11,000 | 17335816 |
| 761782 | May 3, 2013 | May 3, 2013 | Energen Resources Corporation | Cole Ranch -35- #4008 | 12,000 | 17335814 |
| 761627 | May 3, 2013 | May 3, 2013 | Energen Resources Corporation | Lavaca -38- A- #6 | 12,000 | 17335808 |
| 761615 | May 3, 2013 | May 3, 2013 | Energen Resources Corporation | Lavaca -38- A- #5 | 12,000 | 17335805 |
| 761841 | May 2, 2013 | May 2, 2013 | Energen Resources Corporation | Cole Ranch -40- #3 | 12,000 | 17335815 |
| 761729 | May 2, 2013 | May 2, 2013 | Energen Resources Corporation | Llano -8A- #6 | 12,000 | 17335811 |
| 761669 | May 2, 2013 | May 2, 2013 | Energen Resources Corporation | Mollie -A- #4 | 11,500 | 17335813 |
| 761669Amendment | May 2, 2013 | May 2, 2013 | Energen Resources Corporation | Mollie -A- #4 | 11,500 | 17335813 |
| 761669Amendment | May 2, 2013 | May 2, 2013 | Energen Resources Corporation | Mollie -A- #4 | 11,500 | 17335813 |
| 760101 | May 2, 2013 | May 2, 2013 | Apache Corporation | Copeland 27 #10 | 11,000 | 17335708 |
| 761622 | May 1, 2013 | May 1, 2013 | Laredo Petroleum, Inc. | Guthrie Trust A #1910 | 12,000 | 17335807 |
| 761622Amendment | May 1, 2013 | May 1, 2013 | Laredo Petroleum, Inc. | Guthrie Trust A #1910 | 12,000 | 17335807 |
| 761617 | May 1, 2013 | May 1, 2013 | Laredo Petroleum, Inc. | Glass 219 #2 | 12,000 | 17335806 |
| 761600 | May 1, 2013 | May 1, 2013 | Energen Resources Corporation | Daniel -2- #3 | 12,000 | 17335804 |
| 761582 | May 1, 2013 | May 1, 2013 | Energen Resources Corporation | Cole Ranch -35- #4407 | 12,000 | 17335803 |
| 760118 | May 1, 2013 | May 1, 2013 | Energen Resources Corporation | Lavaca -38- #101HH | 7,750 | 17335709 |
| 761538 | Apr 30, 2013 | Apr 30, 2013 | Energen Resources Corporation | Brazos #5 | 12,000 | 17335795 |
| 761398 | Apr 30, 2013 | Apr 30, 2013 | Crownquest Operating, LLC | Ingram Farms A #1D | 4,300 | 17335802 |
| 761030 | Apr 30, 2013 | Apr 30, 2013 | Energen Resources Corporation | Guadalupe -48- #101HH | 7,700 | 17335761 |
| 759028 | Apr 30, 2013 | Apr 30, 2013 | Pioneer Natural Res. USA, Inc. | Weyman '23' #4 | 11,175 | 17335681 |
| 761530 | Apr 29, 2013 | Apr 29, 2013 | Energen Resources Corporation | Jurecek -D- #3 | 12,000 | 17335794 |
| 761528 | Apr 29, 2013 | Apr 29, 2013 | Energen Resources Corporation | Jurecek -C- #3 | 12,000 | 17335793 |
| 761320 | Apr 29, 2013 | Apr 29, 2013 | Energen Resources Corporation | Cole Ranch -35- #4512 | 12,000 | 17335791 |
| 761302 | Apr 29, 2013 | Apr 29, 2013 | Energen Resources Corporation | Cole Ranch -35- #4511 | 12,000 | 17335790 |
| 760999 | Apr 29, 2013 | Apr 29, 2013 | Adventure Expl Partners II, LLC | Calverley 4 #1A | 12,000 | 17335778 |
| 761356 | Apr 26, 2013 | Apr 26, 2013 | Apache Corporation | Hartley Unit #20 | 10,800 | 17335787 |
| 761285 | Apr 26, 2013 | Apr 26, 2013 | Energen Resources Corporation | Cole Ranch -35- #4510 | 12,000 | 17335789 |
| 761086 | Apr 26, 2013 | Apr 26, 2013 | BTA Oil Producers, LLC | 21202 Vector 19 B #1 | 11,100 | 17335773 |
| 760986 | Apr 26, 2013 | Apr 26, 2013 | Parsley Energy Operations, LLC | Schrock 13 #2 | 13,000 | 17335776 |
| 761305 | Apr 25, 2013 | Apr 25, 2013 | Laredo Petroleum, Inc. | Hall 5 #3 | 12,000 | 17335785 |
| 761269 | Apr 25, 2013 | Apr 25, 2013 | Apache Corporation | Hammerhead 33 #5 | 10,600 | 17335783 |
| 761265 | Apr 25, 2013 | Apr 25, 2013 | Apache Corporation | Whiskey 31 #1 | 10,600 | 17335784 |
| 761255 | Apr 25, 2013 | Apr 25, 2013 | Laredo Petroleum, Inc. | Birdie Mae 12 #7 | 12,000 | 17335782 |