| 751451 | Nov 16, 2012 | Nov 16, 2012 | Chesapeake Operating, Inc. | Sugarland Dim #D 4HH | 9,000 | 12735160 |
| 751451Amendment | Nov 16, 2012 | Nov 16, 2012 | Chesapeake Operating, Inc. | Sugarland Dim #D 4HH | 9,000 | 12735160 |
| 751448 | Nov 16, 2012 | Nov 16, 2012 | Anadarko E&P Company LP | Briscoe Catarina North #76HH | 8,700 | 12735159 |
| 751288 | Nov 13, 2012 | Nov 13, 2012 | Chesapeake Operating, Inc. | Lazy a Cotulla #L 4HH | 9,000 | 12735157 |
| 751226 | Nov 12, 2012 | Nov 12, 2012 | Chesapeake Operating, Inc. | Santoscoy Unit a Dim #2HH | 9,000 | 12735156 |
| 751180 | Nov 12, 2012 | Nov 12, 2012 | Rosetta Resources Operating LP | Lasseter & Eppright Unit B #1H | 7,550 | 12735155 |
| 751180Amendment | Nov 12, 2012 | Nov 12, 2012 | Rosetta Resources Operating LP | Lasseter & Eppright Unit B #1H | 7,550 | 12735155 |
| 751169 | Nov 12, 2012 | Nov 12, 2012 | Rosetta Resources Operating LP | Lasseter & Eppright Unit A #1H | 7,600 | 12735154 |
| 750977 | Nov 7, 2012 | Nov 7, 2012 | Chesapeake Operating, Inc. | McCarley Unit a Dim #1HH | 9,000 | 12735153 |
| 750975 | Nov 7, 2012 | Nov 7, 2012 | Chesapeake Operating, Inc. | McCarley Unit B Dim #1HH | 9,000 | 12735152 |
| 750844 | Nov 6, 2012 | Nov 6, 2012 | Newfield Exploration Company | Cmww A #4308HH | 8,000 | 12735151 |
| 750823 | Nov 5, 2012 | Nov 5, 2012 | Chesapeake Operating, Inc. | Alc Ranch Dim #A 1HH | 9,000 | 12735150 |
| 750721 | Nov 5, 2012 | Nov 5, 2012 | Shell Western E&P | Piloncillo #C 6HZH | 20,000 | 12735149 |
| 750719 | Nov 2, 2012 | Nov 2, 2012 | Shell Western E&P | Piloncillo #C 6HAH | 20,000 | 12735147 |
| 750537 | Oct 31, 2012 | Oct 31, 2012 | Chesapeake Operating, Inc. | Gringita Unit II Dim #E 2HH | 9,000 | 12735145 |
| 750537Amendment | Oct 31, 2012 | Oct 31, 2012 | Chesapeake Operating, Inc. | Gringita Unit II Dim #E 2HH | 9,000 | 12735145 |
| 750454 | Oct 30, 2012 | Oct 30, 2012 | Newfield Exploration Company | Cmww A #4307HH | 8,000 | 12735141 |
| 750453 | Oct 30, 2012 | Oct 30, 2012 | Newfield Exploration Company | Cmww A #4306HH | 8,000 | 12735140 |
| 750389 | Oct 29, 2012 | Oct 29, 2012 | Chesapeake Operating, Inc. | Little Reata Unit Dim #F 2HH | 9,000 | 12735138 |
| 750389Amendment | Oct 29, 2012 | Oct 29, 2012 | Chesapeake Operating, Inc. | Little Reata Unit Dim #F 2HH | 9,000 | 12735138 |
| 750389Amendment | Oct 29, 2012 | Oct 29, 2012 | Chesapeake Operating, Inc. | Little Reata Unit Dim #F 2HH | 9,000 | 12735138 |
| 750366 | Oct 29, 2012 | Oct 29, 2012 | Rosetta Resources Operating LP | Briscoe Ranch EF #10H | 8,000 | 12735137 |
| 750365 | Oct 29, 2012 | Oct 29, 2012 | Rosetta Resources Operating LP | Briscoe Ranch EF #9H | 8,000 | 12735136 |
| 750363 | Oct 29, 2012 | Oct 29, 2012 | Rosetta Resources Operating LP | Briscoe Ranch EF #8H | 8,000 | 12735135 |
| 750166 | Oct 25, 2012 | Oct 25, 2012 | Newfield Exploration Company | Cmww A #4305HH | 8,000 | 12735134 |
| 750166Amendment | Oct 25, 2012 | Oct 25, 2012 | Newfield Exploration Company | Cmww A #4305HH | 8,000 | 12735134 |
| 750163 | Oct 25, 2012 | Oct 25, 2012 | Newfield Exploration Company | Cmww A #4304HH | 8,000 | 12735133 |
| 750163Amendment | Oct 25, 2012 | Oct 25, 2012 | Newfield Exploration Company | Cmww A #4304HH | 8,000 | 12735133 |
| 750158 | Oct 25, 2012 | Oct 25, 2012 | Newfield Exploration Company | Cmww A #4303HH | 8,000 | 12735132 |
| 749639 | Oct 24, 2012 | Oct 24, 2012 | Shell Western E&P | Piloncillo #C 3HLH | 20,000 | 12735121 |
| 750118 | Oct 23, 2012 | Oct 23, 2012 | Chesapeake Operating, Inc. | Cmww Unit C Dim #3HH | 9,000 | 12735131 |
| 750118Amendment | Oct 23, 2012 | Oct 23, 2012 | Chesapeake Operating, Inc. | Cmww Unit C Dim (Allocation) #3HH | 9,000 | 12735131 |
| 750118Amendment | Oct 23, 2012 | Oct 23, 2012 | Chesapeake Operating, Inc. | Cmww C Dim (Allocation) #3HH | 9,000 | 12735131 |
| 750049 | Oct 23, 2012 | Oct 23, 2012 | Chesapeake Operating, Inc. | Sugarland Dim #D 1HH | 9,000 | 12735130 |
| 749962 | Oct 23, 2012 | Oct 23, 2012 | Rosetta Resources Operating LP | Vivion #3H | 7,600 | 12735127 |
| 749961 | Oct 23, 2012 | Oct 23, 2012 | Rosetta Resources Operating LP | Vivion #2H | 7,600 | 12735126 |
| 750046 | Oct 22, 2012 | Oct 22, 2012 | Chesapeake Operating, Inc. | Sugarland Dim #E 4HH | 9,000 | 12735129 |
| 749989 | Oct 22, 2012 | Oct 22, 2012 | Texas International Oper., LLC | Asherton #6HSH | 9,600 | 12735128 |
| 749913 | Oct 19, 2012 | Oct 19, 2012 | Texas American Resources Company | Bowman-Speas Unit 67 #1HH | 7,397 | 12735125 |
| 749878 | Oct 19, 2012 | Oct 19, 2012 | Chesapeake Operating, Inc. | Tejas Unit a Dim #1HH | 9,000 | 12735124 |
| 749596 | Oct 17, 2012 | Oct 17, 2012 | Chesapeake Operating, Inc. | Marmion Unit a Dim #1HH | 9,000 | 12735123 |
| 749565 | Oct 16, 2012 | Oct 16, 2012 | Texas American Resources Company | Bowman-Gomez Unit 69 #1HH | 7,432 | 12735120 |
| 749510 | Oct 16, 2012 | Oct 16, 2012 | Texas International Oper., LLC | Asherton #2HNH | 9,600 | 12735122 |
| 748818 | Oct 11, 2012 | Oct 11, 2012 | Chesapeake Operating, Inc. | Faith Yana H Unit #J 1HH | 9,000 | 12735109 |
| 748626 | Oct 11, 2012 | Oct 11, 2012 | Chesapeake Operating, Inc. | Faith-Yana #J 1HH | 9,000 | 12735102 |
| 749176 | Oct 9, 2012 | Oct 9, 2012 | Chesapeake Operating, Inc. | Hopper Unit a Dim #2HH | 9,000 | 12735118 |
| 749066 | Oct 8, 2012 | Oct 8, 2012 | Shell Western E&P | Piloncillo #C 2HAH | 20,000 | 12735116 |
| 748355 | Oct 8, 2012 | Oct 8, 2012 | Anadarko E&P Company LP | La Bandera Ranch Unit A #1HH | 7,100 | 12735117 |
| 749026 | Oct 5, 2012 | Oct 5, 2012 | Chesapeake Operating, Inc. | West Rasmussen Unit Dim #3HH | 9,000 | 12735114 |
| 748924 | Oct 4, 2012 | Oct 4, 2012 | Chesapeake Operating, Inc. | Espantosa Lake Unit G Dim #1HH | 9,000 | 12735119 |
| 748827 | Oct 3, 2012 | Oct 3, 2012 | Chesapeake Operating, Inc. | Tauber Unit D Dim #1HH | 9,000 | 12735108 |
| 748770 | Oct 2, 2012 | Oct 2, 2012 | Chesapeake Operating, Inc. | Sugarland Dim #E 1HH | 9,000 | 12735103 |
| 748574 | Oct 2, 2012 | Oct 2, 2012 | Newfield Exploration Company | Ferguson-McKnight #5264HH | 7,000 | 12735100 |
| 748697 | Oct 1, 2012 | Oct 1, 2012 | Anadarko E&P Company LP | Diamond H State #16HH | 8,700 | 12735101 |
| 748697Amendment | Oct 1, 2012 | Oct 1, 2012 | Anadarko E&P Onshore LLC | Diamond H State #16HH | 8,700 | 12735101 |
| 748542 | Oct 1, 2012 | Oct 1, 2012 | Blackbrush O & G, LLC | San Pedro Ranch #304HH | 4,000 | 12735099 |
| 748542Amendment | Oct 1, 2012 | Oct 1, 2012 | Blackbrush O & G, LLC | San Pedro Ranch #304HH | 4,000 | 12735099 |
| 748542Amendment | Oct 1, 2012 | Oct 1, 2012 | Blackbrush O & G, LLC | SPR Unit #304HH | 4,000 | 12735099 |
| 748542Amendment | Oct 1, 2012 | Oct 1, 2012 | Blackbrush O & G, LLC | San Pedro Ranch #304HH | 4,000 | 12735099 |
| 748542Amendment | Oct 1, 2012 | Oct 1, 2012 | Blackbrush O & G, LLC | San Pedro Ranch #304HH | 4,200 | 12735099 |
| 748444 | Sep 27, 2012 | Sep 27, 2012 | MKS Services, LLC | MKS SWD #4 | 8,500 | 12735095 |
| 748440 | Sep 27, 2012 | Sep 27, 2012 | MKS Services, LLC | MKS SWD #3 | 8,500 | 12735094 |
| 748359 | Sep 27, 2012 | Sep 27, 2012 | Anadarko E&P Company LP | La Bandera Ranch Unit A #3HH | 7,100 | 12735113 |
| 748398 | Sep 26, 2012 | Sep 26, 2012 | Anadarko E&P Company LP | Diamond H State #18HH | 8,500 | 12735093 |
| 748398Amendment | Sep 26, 2012 | Sep 26, 2012 | Anadarko E&P Onshore LLC | Diamond H State #18HH | 8,570 | 12735093 |
| 748043 | Sep 26, 2012 | Sep 26, 2012 | Chesapeake Operating, Inc. | Faith-Yana #E 3HH | 9,000 | 12735069 |
| 748384 | Sep 25, 2012 | Sep 25, 2012 | Blackbrush O & G, LLC | San Pedro Ranch #204HH | 4,000 | 12735092 |
| 748384Amendment | Sep 25, 2012 | Sep 25, 2012 | Blackbrush O & G, LLC | San Pedro Ranch #204HH | 4,000 | 12735092 |
| 748384Amendment | Sep 25, 2012 | Sep 25, 2012 | Blackbrush O & G, LLC | San Pedro Ranch #204HH | 4,000 | 12735092 |
| 748356 | Sep 25, 2012 | Sep 25, 2012 | Anadarko E&P Company LP | La Bandera Ranch Unit A #2HH | 7,100 | 12735091 |
| 748288 | Sep 24, 2012 | Sep 24, 2012 | Anadarko E&P Company LP | Briscoe Cochina East Ranch #27HH | 9,300 | 12735087 |
| 748277 | Sep 24, 2012 | Sep 24, 2012 | Chesapeake Operating, Inc. | Gibson Dim #A 1HH | 12,510 | 12735088 |
| 748260 | Sep 24, 2012 | Sep 24, 2012 | Anadarko E&P Company LP | Briscoe Cochina East Ranch #26HH | 9,300 | 12735086 |
| 748226 | Sep 24, 2012 | Sep 24, 2012 | Chesapeake Operating, Inc. | Faith-Yana #E 4HH | 9,000 | 12735084 |
| 748193 | Sep 21, 2012 | Sep 21, 2012 | Shell Western E&P | Piloncillo #A 16HZH | 18,000 | 12735083 |
| 748192 | Sep 21, 2012 | Sep 21, 2012 | Shell Western E&P | Piloncillo #A 16HYH | 18,000 | 12735079 |
| 748191 | Sep 21, 2012 | Sep 21, 2012 | Shell Western E&P | Piloncillo #A 16HXH | 18,000 | 12735078 |
| 748190 | Sep 21, 2012 | Sep 21, 2012 | Shell Western E&P | Piloncillo #A 16HWH | 18,000 | 12735077 |
| 748189 | Sep 21, 2012 | Sep 21, 2012 | Shell Western E&P | Piloncillo #A 16HVH | 18,000 | 12735076 |
| 748188 | Sep 21, 2012 | Sep 21, 2012 | Shell Western E&P | Piloncillo #A 16HUH | 18,000 | 12735075 |
| 748187 | Sep 21, 2012 | Sep 21, 2012 | Shell Western E&P | Piloncillo #A 14HEH | 18,000 | 12735085 |
| 748187Amendment | Sep 21, 2012 | Sep 21, 2012 | SN Operating, LLC | Piloncillo #A 14HEH | 20,100 | 12735085 |
| 748187Amendment | Sep 21, 2012 | Sep 21, 2012 | SN Operating, LLC | Piloncillo #A 14HEH | 20,100 | 12735085 |
| 748186 | Sep 21, 2012 | Sep 21, 2012 | Shell Western E&P | Piloncillo #A 14HDH | 18,000 | 12735082 |
| 748186Amendment | Sep 21, 2012 | Sep 21, 2012 | SN Operating, LLC | Piloncillo #A 14HDH | 20,100 | 12735082 |
| 748186Amendment | Sep 21, 2012 | Sep 21, 2012 | SN Operating, LLC | Piloncillo #A 14HDH | 20,100 | 12735082 |
| 748185 | Sep 21, 2012 | Sep 21, 2012 | Shell Western E&P | Piloncillo #A 14HCH | 18,000 | 12735074 |
| 748185Amendment | Sep 21, 2012 | Sep 21, 2012 | SN Operating, LLC | Piloncillo #A 14HCH | 20,100 | 12735074 |
| 748185Amendment | Sep 21, 2012 | Sep 21, 2012 | SN Operating, LLC | Piloncillo #A 14HCH | 20,100 | 12735074 |
| 748184 | Sep 21, 2012 | Sep 21, 2012 | Shell Western E&P | Piloncillo #A 14HBH | 18,000 | 12735073 |
| 748184Amendment | Sep 21, 2012 | Sep 21, 2012 | SN Operating, LLC | Piloncillo #A 14HBH | 20,100 | 12735073 |
| 748184Amendment | Sep 21, 2012 | Sep 21, 2012 | SN Operating, LLC | Piloncillo #A 14HBH | 20,100 | 12735073 |
| 748183 | Sep 21, 2012 | Sep 21, 2012 | Shell Western E&P | Piloncillo #A 14HAH | 18,000 | 12735089 |
| 748183Amendment | Sep 21, 2012 | Sep 21, 2012 | SN Operating, LLC | Piloncillo #A 14HAH | 20,100 | 12735089 |
| 748183Amendment | Sep 21, 2012 | Sep 21, 2012 | SN Operating, LLC | Piloncillo #A 14HAH | 20,100 | 12735089 |
| 748180 | Sep 21, 2012 | Sep 21, 2012 | Sage Energy Company | Mills #2HH | 12,000 | 12735080 |
| 748170 | Sep 21, 2012 | Sep 21, 2012 | Anadarko E&P Company LP | Briscoe Cochina East Ranch #25HH | 9,100 | 12735072 |
| 748143 | Sep 21, 2012 | Sep 21, 2012 | Anadarko E&P Company LP | Briscoe Cochina East Ranch #24HH | 9,100 | 12735081 |
| 748143Amendment | Sep 21, 2012 | Sep 21, 2012 | Anadarko E&P Onshore LLC | Briscoe Cochina East Ranch #24HH | 9,100 | 12735081 |
| 748097 | Sep 21, 2012 | Sep 21, 2012 | Chesapeake Operating, Inc. | McFadin Unit 1 Dim #5HH | 9,000 | 12735071 |