| 765931Amendment | Jul 9, 2013 | Jul 9, 2013 | EOG Resources, Inc. | Bayou Bengals Unit #1HH | 8,500 | 31331014 |
| 765931Amendment | Jul 9, 2013 | Jul 9, 2013 | EOG Resources, Inc. | Bayou Bengals Unit #1HH | 8,500 | 31331014 |
| 765931Amendment | Jul 9, 2013 | Jul 9, 2013 | EOG Resources, Inc. | Bayou Bengals Unit #1HH | 8,500 | 31331014 |
| 764919 | Jun 21, 2013 | Jun 21, 2013 | Energy & Expl. Prtnrs Oper., LP | Stagecoach #1HH | 9,000 | 31331013 |
| 764919Amendment | Jun 21, 2013 | Jun 21, 2013 | Energy & Expl. Prtnrs Oper., LP | Stagecoach #1HH | 9,050 | 31331013 |
| 764824 | Jun 21, 2013 | Jun 21, 2013 | Energy & Expl. Prtnrs Oper., LP | Walker's Texas Ranger #1HH | 9,000 | 31331012 |
| 763859 | Jun 14, 2013 | Jun 14, 2013 | Burk Royalty Co., Ltd. | Bates Unit #2 | 11,500 | 31330622 |
| 764281 | Jun 13, 2013 | Jun 13, 2013 | Treadstone Energy Partners, LLC | Forrest #7 | 9,750 | 31331011 |
| 764281Amendment | Jun 13, 2013 | Jun 13, 2013 | Treadstone Energy Partners, LLC | Forrest #7 | 10,200 | 31331011 |
| 764281Amendment | Jun 13, 2013 | Jun 13, 2013 | Treadstone Energy Partners, LLC | Forrest #7 | 10,500 | 31331011 |
| 763978 | Jun 11, 2013 | Jun 11, 2013 | Bluestone Natural Resources, LLC | Laura Unit #1 | 13,000 | 31331010 |
| 763978Amendment | Jun 11, 2013 | Jun 11, 2013 | Bluestone Natural Resources, LLC | Laura Unit #1 | 13,000 | 31331010 |
| 763978Amendment | Jun 11, 2013 | Jun 11, 2013 | EOG Resources, Inc. | Laura Unit #1 | 13,000 | 31331010 |
| 763822 | Jun 6, 2013 | Jun 6, 2013 | Energy & Expl. Prtnrs Oper., LP | Quick Draw #1HH | 9,000 | 31331009 |
| 763822Amendment | Jun 6, 2013 | Jun 6, 2013 | Energy & Expl. Prtnrs Oper., LP | Quick Draw #1HH | 9,000 | 31331009 |
| 763822Amendment | Jun 6, 2013 | Jun 6, 2013 | Energy & Expl. Prtnrs Oper., LP | Quick Draw #1HH | 9,000 | 31331009 |
| 763489 | May 31, 2013 | May 31, 2013 | Energy & Expl. Prtnrs Oper., LP | Ponderosa #1HH | 9,000 | 31331008 |
| 763489Amendment | May 31, 2013 | May 31, 2013 | Energy & Expl. Prtnrs Oper., LP | Ponderosa #1HH | 9,000 | 31331008 |
| 762818 | May 22, 2013 | May 22, 2013 | Enervest Operating, L.L.C. | Long Hollow #1RE | 9,000 | 31330935 |
| 762338 | May 14, 2013 | May 14, 2013 | Encana Oil & Gas(usa) Inc. | Burns-State Unit #2HH | 9,000 | 31331004 |
| 762338Amendment | May 14, 2013 | May 14, 2013 | Encana Oil & Gas(usa) Inc. | Burns-State Unit #2HH | 9,000 | 31331004 |
| 762329 | May 14, 2013 | May 14, 2013 | Encana Oil & Gas(usa) Inc. | Burns-State Unit #1HH | 9,000 | 31331005 |
| 762329Amendment | May 14, 2013 | May 14, 2013 | Encana Oil & Gas(usa) Inc. | Burns-State Unit #1HH | 9,000 | 31331005 |
| 762121 | May 10, 2013 | May 10, 2013 | Silver Oak Energy, LLC | Elizabeth #1HH | 10,500 | 31331001 |
| 762121Amendment | May 10, 2013 | May 10, 2013 | Silver Oak Energy, LLC | Elizabeth #1HH | 10,500 | 31331001 |
| 761769 | May 8, 2013 | May 8, 2013 | Burk Royalty Co., Ltd. | Swanson #1 | 13,000 | 31331002 |
| 761937 | May 6, 2013 | May 6, 2013 | Woodbine Acquisition LLC | Benelli #1HH | 15,000 | 31331000 |
| 761845 | May 6, 2013 | May 6, 2013 | Gulf Bend Resources, LLC | North Zulch Unit #1HH | 8,600 | 31330999 |
| 761433 | May 3, 2013 | May 3, 2013 | Llewellin Operating Company, LLC | C. Heath #1 | 13,000 | 31330996 |
| 761433Amendment | May 3, 2013 | May 3, 2013 | Llewellin Operating Company, LLC | Heath, C. #1 | 13,000 | 31330996 |
| 761705 | May 2, 2013 | May 2, 2013 | Energy & Expl. Prtnrs Oper., LP | Spot Bullard McMahan #1HH | 9,000 | 31330998 |
| 761705Amendment | May 2, 2013 | May 2, 2013 | Energy & Expl. Prtnrs Oper., LP | Spot Bullard McMahan #1HH | 9,000 | 31330998 |
| 761392 | May 1, 2013 | May 1, 2013 | Enervest Operating, L.L.C. | Howard-Pierce Unit #1HH | 9,100 | 31330992 |
| 761584 | Apr 29, 2013 | Apr 29, 2013 | Bluestone Natural Resources, LLC | Grisham #1 | 13,000 | 31330993 |
| 761584Amendment | Apr 29, 2013 | Apr 29, 2013 | Bluestone Natural Resources, LLC | Grisham #1 | 13,000 | 31330993 |
| 761584Amendment | Apr 29, 2013 | Apr 29, 2013 | EOG Resources, Inc. | Grisham #1 | 13,000 | 31330993 |
| 761157 | Apr 23, 2013 | Apr 23, 2013 | Energy & Expl. Prtnrs Oper., LP | Maverick #1HH | 9,000 | 31330991 |
| 761157Amendment | Apr 23, 2013 | Apr 23, 2013 | Energy & Expl. Prtnrs Oper., LP | Maverick #1HH | 9,000 | 31330991 |
| 760681 | Apr 18, 2013 | Apr 18, 2013 | Crimson Exploration Oper., Inc. | Grace Hall C (Allocation) Unit #1HH | 8,700 | 31330990 |
| 760148 | Apr 8, 2013 | Apr 8, 2013 | Burk Royalty Co., Ltd. | Hargrave #1 | 13,000 | 31330988 |
| 760144 | Apr 8, 2013 | Apr 8, 2013 | Burk Royalty Co., Ltd. | Stiver #1 | 13,000 | 31330989 |
| 759679 | Apr 1, 2013 | Apr 1, 2013 | Pinnergy, Ltd. | Osr SWD #1 | 7,800 | 31330987 |
| 759679Amendment | Apr 1, 2013 | Apr 1, 2013 | Pinnergy, Ltd. | Osr SWD #1 | 8,500 | 31330987 |
| 757681 | Mar 29, 2013 | Mar 29, 2013 | Samson Lone Star, LLC | Stewart #1HH | 9,300 | 31330978 |
| 759063 | Mar 27, 2013 | Mar 27, 2013 | Treadstone Energy Partners, LLC | Forrest C #6 | 11,350 | 31330986 |
| 759070 | Mar 26, 2013 | Mar 26, 2013 | Devon Energy Production Co, L.P. | Lloyd Trust #1HH | 10,000 | 31330929 |
| 759238 | Mar 25, 2013 | Mar 25, 2013 | Burk Royalty Co., Ltd. | Grace #1 | 13,000 | 31330985 |
| 758727 | Mar 18, 2013 | Mar 18, 2013 | Woodbine Production Corporation | Osr Halliday Unit #1055HH | 9,500 | 31330984 |
| 758489 | Mar 14, 2013 | Mar 14, 2013 | Crimson Exploration Oper., Inc. | Payne Unit B #1HH | 8,800 | 31330983 |
| 758115 | Mar 14, 2013 | Mar 14, 2013 | Woodbine Acquisition LLC | Cheryl Lind Fleming Unit (Alloc) #1 HH | 8,500 | 31330980 |
| 758115Amendment | Mar 14, 2013 | Mar 14, 2013 | MD America Energy, LLC | Cheryl Lind Fleming Unit (Alloc) #1 HH | 8,500 | 31330980 |
| 758347 | Mar 13, 2013 | Mar 13, 2013 | Crimson Exploration Oper., Inc. | Crow Unit A #1HH | 8,700 | 31330982 |
| 758128 | Mar 8, 2013 | Mar 8, 2013 | Burk Royalty Co., Ltd. | Webb #1 | 13,000 | 31330981 |
| 757205 | Feb 25, 2013 | Feb 25, 2013 | EOG Resources, Inc. | Ellison Unit #1HH | 8,415 | 31330977 |
| 757205Amendment | Feb 25, 2013 | Feb 25, 2013 | EOG Resources, Inc. | Ellison Unit #1HH | 8,415 | 31330977 |
| 756794 | Feb 25, 2013 | Feb 25, 2013 | Treadstone Energy Partners, LLC | Carter-Starns Unit #1 | 10,500 | 31330976 |
| 756716 | Feb 14, 2013 | Feb 14, 2013 | Treadstone Energy Partners, LLC | Elijah Carter A #1 | 11,500 | 31330975 |
| 756660 | Feb 14, 2013 | Feb 14, 2013 | Enervest Operating, L.L.C. | Gall #1HH | 9,200 | 31330974 |
| 756096 | Feb 12, 2013 | Feb 12, 2013 | Burk Royalty Co., Ltd. | York #1 | 13,000 | 31330973 |
| 755459 | Jan 29, 2013 | Jan 29, 2013 | Enervest Operating, L.L.C. | Watson-Howard #1HH | 9,200 | 31330972 |
| 755314 | Jan 28, 2013 | Jan 28, 2013 | Woodbine Acquisition LLC | Beretta #1HH | 8,700 | 31330971 |
| 755314Amendment | Jan 28, 2013 | Jan 28, 2013 | MD America Energy, LLC | Beretta (Allocation) #1HH | 8,700 | 31330971 |
| 754007 | Jan 7, 2013 | Jan 7, 2013 | Gulf Bend Resources, LLC | Holiway Unit #1HH | 8,450 | 31330969 |
| 752959 | Dec 13, 2012 | Dec 13, 2012 | Bluestone Natural Resources, LLC | Bryan #1 | 13,000 | 31330968 |
| 752959Amendment | Dec 13, 2012 | Dec 13, 2012 | Bluestone Natural Resources, LLC | Bryan #1 | 13,000 | 31330968 |
| 752914 | Dec 13, 2012 | Dec 13, 2012 | Bluestone Natural Resources, LLC | Vick Unit #1 | 13,000 | 31330967 |
| 752545 | Dec 7, 2012 | Dec 7, 2012 | Bluestone Natural Resources, LLC | Tally HO #1 | 13,000 | 31330966 |
| 752545Amendment | Dec 7, 2012 | Dec 7, 2012 | Bluestone Natural Resources, LLC | Tally HO #1 | 13,000 | 31330966 |
| 752134 | Nov 30, 2012 | Nov 30, 2012 | Burk Royalty Co., Ltd. | Turner #1 | 13,000 | 31330965 |
| 751856 | Nov 27, 2012 | Nov 27, 2012 | Crimson Exploration Oper., Inc. | Mosley Oil Unit B #1HH | 8,780 | 31330964 |
| 750770 | Nov 19, 2012 | Nov 19, 2012 | Crimson Exploration Oper., Inc. | Nevill-Mosley (Allocation) Unit #1HH | 8,750 | 31330962 |
| 749244 | Nov 19, 2012 | Nov 19, 2012 | Treadstone Energy Partners, LLC | Jeanette Forrest Wakefield #1 | 10,150 | 31300067 |
| 751201 | Nov 14, 2012 | Nov 14, 2012 | Halcon Operating Co., Inc. | Samantha Rizzo Oil & Gas Ltd #3HH | 8,800 | 31330963 |
| 751201Amendment | Nov 14, 2012 | Nov 14, 2012 | Halcon Operating Co., Inc. | Samantha Rizzo Oil & Gas Ltd #3HH | 8,800 | 31330963 |
| 750808 | Nov 9, 2012 | Nov 9, 2012 | Treadstone Energy Partners, LLC | Forrest A #5 | 11,300 | 31330961 |
| 749226 | Oct 31, 2012 | Oct 31, 2012 | Treadstone Energy Partners, LLC | W Forrest #4 | 9,840 | 31330824 |
| 750195 | Oct 25, 2012 | Oct 25, 2012 | Halcon Operating Co., Inc. | Samantha Rizzo Oil & Gas Ltd #2HH | 8,900 | 31330960 |
| 750195Amendment | Oct 25, 2012 | Oct 25, 2012 | Halcon Operating Co., Inc. | Samantha Rizzo Oil & Gas Ltd #2HH | 8,900 | 31330960 |
| 749050 | Oct 25, 2012 | Oct 25, 2012 | Silver Oak Energy, LLC | Henson Unit 2 #1HH | 10,000 | 31330953 |
| 749050Amendment | Oct 25, 2012 | Oct 25, 2012 | Silver Oak Energy, LLC | Henson Unit 2 #1HH | 10,000 | 31330953 |
| 750035 | Oct 22, 2012 | Oct 22, 2012 | EOG Resources, Inc. | Rea Unit #1HH | 8,500 | 31330958 |
| 750035Amendment | Oct 22, 2012 | Oct 22, 2012 | EOG Resources, Inc. | Rea Unit #1HH | 8,500 | 31330958 |
| 750035Amendment | Oct 22, 2012 | Oct 22, 2012 | EOG Resources, Inc. | Rea Unit #1HH | 8,500 | 31330958 |
| 750024 | Oct 22, 2012 | Oct 22, 2012 | Devon Energy Production Co, L.P. | K. G. #1HH | 10,000 | 31330959 |
| 749751 | Oct 18, 2012 | Oct 18, 2012 | Enervest Operating, L.L.C. | Barrett-Marks #1HH | 9,200 | 31330957 |
| 749751Amendment | Oct 18, 2012 | Oct 18, 2012 | Enervest Operating, L.L.C. | Barrett-Marks #1HH | 9,200 | 31330957 |
| 749576 | Oct 16, 2012 | Oct 16, 2012 | CML Exploration, LLC | Harrison #2HH | 8,800 | 31330956 |
| 749576Amendment | Oct 16, 2012 | Oct 16, 2012 | CML Exploration, LLC | Harrison #2HH | 8,800 | 31330956 |
| 749271 | Oct 11, 2012 | Oct 11, 2012 | Woodbine Production Corporation | Osr Halliday #964HH | 9,500 | 31330955 |
| 749166 | Oct 9, 2012 | Oct 9, 2012 | Bluestone Natural Resources, LLC | Manning Gas Unit #1 | 13,000 | 31330954 |
| 749166Amendment | Oct 9, 2012 | Oct 9, 2012 | Bluestone Natural Resources, LLC | Manning Gas Unit #1 | 13,000 | 31330954 |
| 748337 | Sep 25, 2012 | Sep 25, 2012 | Halcon Operating Co., Inc. | Rizzo Oil & Gas Ltd #2HH | 8,707 | 31330952 |
| 748054 | Sep 18, 2012 | Sep 18, 2012 | Silver Oak Energy, LLC | Henson #1HH | 10,500 | 31330951 |
| 748054Amendment | Sep 18, 2012 | Sep 18, 2012 | Silver Oak Energy, LLC | Henson #1HH | 10,500 | 31330951 |
| 748054Amendment | Sep 18, 2012 | Sep 18, 2012 | Silver Oak Energy, LLC | Henson #1HH | 10,500 | 31330951 |
| 745536 | Aug 28, 2012 | Aug 28, 2012 | Woodbine Acquisition LLC | Ruger #1HH | 9,000 | 31330942 |
| 745536Amendment | Aug 28, 2012 | Aug 28, 2012 | MD America Energy, LLC | Ruger #1HH | 9,000 | 31330942 |
| 746682 | Aug 24, 2012 | Aug 24, 2012 | Decker Operating Co., L.L.C. | Sheldon Unit #1HH | 13,850 | 31330950 |
| 746477 | Aug 23, 2012 | Aug 23, 2012 | Halcon Operating Co., Inc. | Samantha Rizzo Oil & Gas Ltd #1HH | 10,800 | 31330949 |
| 746477Amendment | Aug 23, 2012 | Aug 23, 2012 | Halcon Operating Co., Inc. | Samantha Rizzo Oil & Gas Ltd #1HH | 10,800 | 31330949 |