| 739885 | Jun 12, 2012 | Jun 12, 2012 | Legacy Reserves Operating LP | Glass '27' #1 | 9,800 | 17334972 |
| 741996 | Jun 11, 2012 | Jun 11, 2012 | Energen Resources Corporation | Daniel -2A- #2 | 11,000 | 17335074 |
| 741792 | Jun 11, 2012 | Jun 11, 2012 | Laredo Petroleum, Inc. | Calverley 40A #6 | 12,000 | 17335050 |
| 739584 | Jun 11, 2012 | Jun 11, 2012 | Bluestem Energy Holdings, LLC | Calverly #13 | 11,500 | 17334963 |
| 739583 | Jun 11, 2012 | Jun 11, 2012 | Bluestem Energy Holdings, LLC | Calverly #12 | 11,500 | 17334962 |
| 739582 | Jun 11, 2012 | Jun 11, 2012 | Bluestem Energy Holdings, LLC | Calverly #10 | 11,500 | 17334961 |
| 739578 | Jun 11, 2012 | Jun 11, 2012 | Bluestem Energy Holdings, LLC | Weaver #16 | 11,500 | 17334954 |
| 739575 | Jun 11, 2012 | Jun 11, 2012 | Bluestem Energy Holdings, LLC | Weaver #14 | 11,500 | 17334953 |
| 739571 | Jun 11, 2012 | Jun 11, 2012 | Bluestem Energy Holdings, LLC | Ratliff 'B' #8 | 11,500 | 17334959 |
| 739570 | Jun 11, 2012 | Jun 11, 2012 | Bluestem Energy Holdings, LLC | Ratliff 'B' #7 | 11,500 | 17334958 |
| 739570Amendment | Jun 11, 2012 | Jun 11, 2012 | Diamondback E&P LLC | Ratliff 'B' #7 | 11,500 | 17334958 |
| 739568 | Jun 11, 2012 | Jun 11, 2012 | Bluestem Energy Holdings, LLC | Ratliff 'B' #6 | 11,500 | 17334986 |
| 739568Amendment | Jun 11, 2012 | Jun 11, 2012 | Bluestem Energy Holdings, LLC | Ratliff 'B' #6 | 12,000 | 17334986 |
| 739561 | Jun 11, 2012 | Jun 11, 2012 | Bluestem Energy Holdings, LLC | Ratliff 'A' #4 | 11,500 | 17334956 |
| 739561Amendment | Jun 11, 2012 | Jun 11, 2012 | Bluestem Energy Holdings, LLC | Ratliff 'A' #4 | 15,000 | 17334956 |
| 739558 | Jun 11, 2012 | Jun 11, 2012 | Bluestem Energy Holdings, LLC | Ratliff 'A' #3 | 11,500 | 17334955 |
| 739558Amendment | Jun 11, 2012 | Jun 11, 2012 | Bluestem Energy Holdings, LLC | Ratliff 'A' #3 | 15,000 | 17334955 |
| 739554 | Jun 11, 2012 | Jun 11, 2012 | Bluestem Energy Holdings, LLC | Brunson #12 | 11,500 | 17334952 |
| 739553 | Jun 11, 2012 | Jun 11, 2012 | Bluestem Energy Holdings, LLC | Brunson #11 | 11,500 | 17334951 |
| 741911 | Jun 9, 2012 | Jun 9, 2012 | Energen Resources Corporation | Daniel -2A- #1 | 11,000 | 17335066 |
| 741902 | Jun 9, 2012 | Jun 9, 2012 | Energen Resources Corporation | Daniel -2- #2 | 11,000 | 17335064 |
| 741901 | Jun 9, 2012 | Jun 9, 2012 | Energen Resources Corporation | Daniel -2- #1 | 11,000 | 17335067 |
| 741892 | Jun 9, 2012 | Jun 9, 2012 | Energen Resources Corporation | Daniel -11- #1 | 11,000 | 17335063 |
| 741890 | Jun 9, 2012 | Jun 9, 2012 | Energen Resources Corporation | Daniel -14- #2 | 11,000 | 17335061 |
| 741888 | Jun 9, 2012 | Jun 9, 2012 | Energen Resources Corporation | Daniel -14- #1 | 11,000 | 17335065 |
| 741865 | Jun 9, 2012 | Jun 9, 2012 | Energen Resources Corporation | Glass -A- #4 | 11,000 | 17335060 |
| 741852 | Jun 9, 2012 | Jun 9, 2012 | Apache Corporation | Riley #4716 | 11,000 | 17335062 |
| 741838 | Jun 8, 2012 | Jun 8, 2012 | Energen Resources Corporation | Craig #5 | 11,000 | 17335059 |
| 741838Amendment | Jun 8, 2012 | Jun 8, 2012 | Energen Resources Corporation | Craig #5 | 11,000 | 17335059 |
| 741835 | Jun 8, 2012 | Jun 8, 2012 | Pioneer Natural Res. USA, Inc. | Houston, Fred 'B' #4 | 10,900 | 17335058 |
| 741825 | Jun 8, 2012 | Jun 8, 2012 | Energen Resources Corporation | Craig #4 | 11,000 | 17335057 |
| 741824 | Jun 8, 2012 | Jun 8, 2012 | Energen Resources Corporation | Jones -46- #6 | 11,000 | 17335073 |
| 741821 | Jun 8, 2012 | Jun 8, 2012 | Energen Resources Corporation | Jones -46- #5 | 11,000 | 17335056 |
| 741820 | Jun 8, 2012 | Jun 8, 2012 | Energen Resources Corporation | Jones -46- #4 | 11,000 | 17335055 |
| 741802 | Jun 8, 2012 | Jun 8, 2012 | Laredo Petroleum, Inc. | East Boxcar 48 #5 | 12,000 | 17335068 |
| 741702 | Jun 8, 2012 | Jun 8, 2012 | Energen Resources Corporation | Colorado #9 | 11,000 | 17335040 |
| 739551 | Jun 8, 2012 | Jun 8, 2012 | Bluestem Energy Holdings, LLC | Brunson #9 | 11,500 | 17334950 |
| 739547 | Jun 8, 2012 | Jun 8, 2012 | Bluestem Energy Holdings, LLC | Brunson #8 | 11,500 | 17334949 |
| 741754 | Jun 7, 2012 | Jun 7, 2012 | Energen Resources Corporation | Lavaca -38- #4 | 11,000 | 17335047 |
| 741744 | Jun 7, 2012 | Jun 7, 2012 | Energen Resources Corporation | Guadalupe -48- #8 | 11,000 | 17335046 |
| 741733 | Jun 7, 2012 | Jun 7, 2012 | Athlon FE Operating LLC | Jost 25 #3 | 11,000 | 17335045 |
| 741840 | Jun 6, 2012 | Jun 6, 2012 | Energen Resources Corporation | Frost #4 | 11,000 | 17335038 |
| 741729 | Jun 6, 2012 | Jun 6, 2012 | Energen Resources Corporation | Frio #4 | 11,000 | 17335044 |
| 741729Amendment | Jun 6, 2012 | Jun 6, 2012 | Energen Resources Corporation | Frio #4 | 11,000 | 17335044 |
| 741722 | Jun 6, 2012 | Jun 6, 2012 | Energen Resources Corporation | Trinity -16- #8 | 11,000 | 17335037 |
| 741721 | Jun 6, 2012 | Jun 6, 2012 | Energen Resources Corporation | Trinity -16- #7 | 11,000 | 17335036 |
| 741719 | Jun 6, 2012 | Jun 6, 2012 | Pioneer Natural Res. USA, Inc. | Hurt #9 | 11,000 | 17335041 |
| 741718 | Jun 6, 2012 | Jun 6, 2012 | Energen Resources Corporation | Llano -8A- #4 | 11,000 | 17335043 |
| 741687 | Jun 6, 2012 | Jun 6, 2012 | Energen Resources Corporation | Neal #8 | 11,000 | 17335039 |
| 741677 | Jun 5, 2012 | Jun 5, 2012 | Energen Resources Corporation | Llano -8- #4 | 11,000 | 17335035 |
| 741640 | Jun 5, 2012 | Jun 5, 2012 | Laredo Petroleum, Inc. | South Boxcar 3 #5 | 12,000 | 17335034 |
| 741630 | Jun 5, 2012 | Jun 5, 2012 | Laredo Petroleum, Inc. | Lazy E #1402HH | 12,000 | 17335042 |
| 741635 | Jun 4, 2012 | Jun 4, 2012 | Apache Corporation | Nichols #2306 | 11,000 | 17335032 |
| 741627 | Jun 4, 2012 | Jun 4, 2012 | Apache Corporation | His Blessing 35 #13 | 11,000 | 17335031 |
| 741627Amendment | Jun 4, 2012 | Jun 4, 2012 | Apache Corporation | His Blessing 35 #13 | 11,000 | 17335031 |
| 741627Amendment | Jun 4, 2012 | Jun 4, 2012 | Apache Corporation | His Blessing 35 #13 | 11,000 | 17335031 |
| 741602 | Jun 4, 2012 | Jun 4, 2012 | Apache Corporation | Glass 3 #6 | 11,000 | 17335030 |
| 741602Amendment | Jun 4, 2012 | Jun 4, 2012 | Apache Corporation | Glass 3 #6 | 11,000 | 17335030 |
| 741472 | Jun 4, 2012 | Jun 4, 2012 | Berry Oil Comp. | Blalock C #1211 | 12,000 | 17335024 |
| 740236 | Jun 4, 2012 | Jun 4, 2012 | Fiml Natural Resources, LLC | Barbee #92N | 10,500 | 17335027 |
| 739848 | Jun 4, 2012 | Jun 4, 2012 | Fivestones Energy LLC | Schwartz '48' #2 | 11,000 | 17335023 |
| 741567 | Jun 2, 2012 | Jun 2, 2012 | Apache Corporation | Adams 26 #17 | 11,000 | 17335033 |
| 741567Amendment | Jun 2, 2012 | Jun 2, 2012 | Apache Corporation | Adams 26 #17 | 11,000 | 17335033 |
| 741567Amendment | Jun 2, 2012 | Jun 2, 2012 | Apache Corporation | Adams 26 #17 | 11,000 | 17335033 |
| 741535 | Jun 2, 2012 | Jun 2, 2012 | Parsley Energy Operations, LLC | Hoelscher 46 #2 | 13,000 | 17335028 |
| 741532 | Jun 2, 2012 | Jun 2, 2012 | Parsley Energy Operations, LLC | Hoelscher 46 #1 | 13,000 | 17335029 |
| 741422 | Jun 1, 2012 | Jun 1, 2012 | Nadel and Gussman Permian,l.l.c. | Vaqueros 27 #2 | 10,500 | 17335022 |
| 741387 | Jun 1, 2012 | Jun 1, 2012 | Nadel and Gussman Permian,l.l.c. | Bearkat 20 #4 | 10,500 | 17335020 |
| 741267 | Jun 1, 2012 | Jun 1, 2012 | Nadel and Gussman Permian,l.l.c. | Benson #1 | 10,500 | 17333851 |
| 741261 | Jun 1, 2012 | Jun 1, 2012 | Energen Resources Corporation | Cole Ranch -35- #4509 | 11,500 | 17335018 |
| 741265 | May 31, 2012 | May 31, 2012 | Apache Corporation | Adams 26 #16 | 11,000 | 17335019 |
| 741265Amendment | May 31, 2012 | May 31, 2012 | Apache Corporation | Adams 26 #16 | 11,000 | 17335019 |
| 741158 | May 31, 2012 | May 31, 2012 | Pioneer Natural Res. USA, Inc. | Stone '46' #3 | 11,300 | 17335015 |
| 741151 | May 31, 2012 | May 31, 2012 | Pioneer Natural Res. USA, Inc. | Kaylina '15' #1 | 11,200 | 17335016 |
| 741072 | May 30, 2012 | May 30, 2012 | Trilogy Operating, Inc. | Sfo #2 | 12,000 | 17335014 |
| 741072Amendment | May 30, 2012 | May 30, 2012 | Trilogy Operating, Inc. | Sfo #2 | 12,000 | 17335014 |
| 739661 | May 30, 2012 | May 30, 2012 | Crownquest Operating, LLC | Sefcik 24 #1 | 11,900 | 17335021 |
| 741000 | May 29, 2012 | May 29, 2012 | Trilogy Operating, Inc. | MLP #1 | 12,000 | 17335008 |
| 740894 | May 25, 2012 | May 25, 2012 | COG Operating LLC | Currie #3808HH | 13,500 | 17335001 |
| 740271 | May 25, 2012 | May 25, 2012 | Apache Corporation | Cook 21 #17 | 11,000 | 17334988 |
| 740271Amendment | May 25, 2012 | May 25, 2012 | Apache Corporation | Cook 21 #17 | 11,000 | 17334988 |
| 740823 | May 24, 2012 | May 24, 2012 | Trilogy Operating, Inc. | JBL #1 | 12,000 | 17335000 |
| 740776 | May 24, 2012 | May 24, 2012 | Pioneer Natural Res. USA, Inc. | McDaniel 34 #3 | 11,000 | 17334996 |
| 739359 | May 24, 2012 | May 24, 2012 | Berry Oil Comp. | Zant #3803 | 12,000 | 17335009 |
| 739155 | May 23, 2012 | May 23, 2012 | Berry Oil Comp. | Zant #3704 | 12,000 | 17334998 |
| 739149 | May 22, 2012 | May 22, 2012 | Berry Oil Comp. | Zant #1103 | 12,000 | 17334997 |
| 740253 | May 21, 2012 | May 21, 2012 | Apache Corporation | Nix 16 #12 | 11,000 | 17334987 |
| 740253Amendment | May 21, 2012 | May 21, 2012 | Apache Corporation | Nix 16 #12 | 11,000 | 17334987 |
| 740253Amendment | May 21, 2012 | May 21, 2012 | Apache Corporation | Nix 16 #12 | 11,000 | 17334987 |
| 739121 | May 21, 2012 | May 21, 2012 | Berry Oil Comp. | Zant #3701 | 12,000 | 17334995 |
| 739111 | May 21, 2012 | May 21, 2012 | Berry Oil Comp. | Zant #1102 | 12,000 | 17334994 |
| 739110 | May 21, 2012 | May 21, 2012 | Berry Oil Comp. | Zant #3806 | 12,000 | 17334993 |
| 739107 | May 21, 2012 | May 21, 2012 | Berry Oil Comp. | Zant #3807 | 12,000 | 17334992 |
| 740803 | May 18, 2012 | May 18, 2012 | Trilogy Operating, Inc. | CSM #1 | 12,000 | 17334999 |
| 740423 | May 18, 2012 | May 18, 2012 | Sheridan Production Company, LLC | Glasscock, Howard W. (G-S) Unit #150 | 2,500 | 17330080 |
| 740315 | May 18, 2012 | May 18, 2012 | Meritage Energy Company, LLC | Woody #421 | 11,000 | 17334990 |
| 739910 | May 18, 2012 | May 18, 2012 | Pioneer Natural Res. USA, Inc. | Witt '24' #4 | 10,800 | 17335002 |
| 740126 | May 17, 2012 | May 17, 2012 | Laredo Petroleum, Inc. | Kohls 22 #2 | 12,000 | 17334985 |
| 740100 | May 17, 2012 | May 17, 2012 | Apache Corporation | His Blessing 34 #10 | 11,000 | 17334983 |
| 740100Amendment | May 17, 2012 | May 17, 2012 | Apache Corporation | His Blessing 34 #10 | 11,000 | 17334983 |