| 719974Amendment | Jul 13, 2011 | Jul 13, 2011 | Quicksilver Resources Inc. | Alliance Intel SWD #112134196 | 13,000 |
| 719974Amendment | Jul 13, 2011 | Jul 13, 2011 | Quicksilver Resources Inc. | Alliance Intel SWD #112134196 | 13,000 |
| 719829 | Jul 11, 2011 | Jul 11, 2011 | Devon Energy Production Co, L.P. | Nicholson-Porter-CT Four (SA) #1HH12134195 | 9,000 |
| 717987 | Jul 7, 2011 | Jul 7, 2011 | Devon Energy Production Co, L.P. | Porter-Nicholson (SA) #2HH12134177 | 9,000 |
| 719500 | Jul 5, 2011 | Jul 5, 2011 | Vantage Fort Worth Energy LLC | Baldinger #10HH12134192 | 9,000 |
| 719503 | Jul 1, 2011 | Jul 1, 2011 | Vantage Fort Worth Energy LLC | Baldinger #12HH12134194 | 9,000 |
| 719501 | Jul 1, 2011 | Jul 1, 2011 | Vantage Fort Worth Energy LLC | Baldinger #11HH12134193 | 9,000 |
| 719058 | Jun 29, 2011 | Jun 29, 2011 | Burlington Resources O & G Co LP | Atcheson-Hudson Unit #2HH12134191 | 9,000 |
| 719013 | Jun 29, 2011 | Jun 29, 2011 | Burlington Resources O & G Co LP | Buckley B Unit #2HH12134190 | 9,000 |
| 718382 | Jun 22, 2011 | Jun 22, 2011 | Devon Energy Production Co, L.P. | Nicholson-Malone (SA) #1HH12134189 | 9,000 |
| 718229 | Jun 17, 2011 | Jun 17, 2011 | Burlington Resources O & G Co LP | Weatherby #4HH12134188 | 9,000 |
| 718225 | Jun 17, 2011 | Jun 17, 2011 | Burlington Resources O & G Co LP | Weatherby #3HH12134187 | 9,000 |
| 716165 | Jun 17, 2011 | Jun 17, 2011 | Devon Energy Production Co, L.P. | Casto-Ponder-CT Four (SA) #2HH12134169 | 9,000 |
| 716155 | Jun 17, 2011 | Jun 17, 2011 | Devon Energy Production Co, L.P. | Casto-Ponder-CT Four (SA) #1HH12134172 | 9,000 |
| 717701 | Jun 15, 2011 | Jun 15, 2011 | Burlington Resources O & G Co LP | Buckley Unit #3HH12134181 | 9,000 |
| 717691 | Jun 15, 2011 | Jun 15, 2011 | Devon Energy Production Co, L.P. | Dcco 1 - Baker (SA) 'A' #1HH12134182 | 9,000 |
| 717695 | Jun 14, 2011 | Jun 14, 2011 | Devon Energy Production Co, L.P. | Dcco 1 - P.G. Sullivan 'A' #20HH12134183 | 9,000 |
| 717993 | Jun 13, 2011 | Jun 13, 2011 | Devon Energy Production Co, L.P. | Porter-Nicholson (SA) #4HH12134180 | 9,000 |
| 717990 | Jun 13, 2011 | Jun 13, 2011 | Devon Energy Production Co, L.P. | Porter-Nicholson-Malone (SA) #1HH12134179 | 9,000 |
| 717989 | Jun 13, 2011 | Jun 13, 2011 | Devon Energy Production Co, L.P. | Porter-Nicholson (SA) #3HH12134178 | 9,000 |
| 715653 | Jun 2, 2011 | Jun 2, 2011 | Devon Energy Production Co, L.P. | Casto-CT Four (SA) 'A' #1HH12134165 | 9,000 |
| 717342 | Jun 1, 2011 | Jun 1, 2011 | Quicksilver Resources Inc. | Alliance Airport KS Unit #21HH12134176 | 9,000 |
| 717342Amendment | Jun 1, 2011 | Jun 1, 2011 | Quicksilver Resources Inc. | Alliance Airport KS Unit #21HH12134176 | 9,000 |
| 717341 | Jun 1, 2011 | Jun 1, 2011 | Quicksilver Resources Inc. | Alliance Airport KS Unit #20HH12134175 | 9,000 |
| 716851 | May 27, 2011 | May 27, 2011 | Burlington Resources O & G Co LP | Higgs Unit #2HH12134174 | 9,000 |
| 716851Amendment | May 27, 2011 | May 27, 2011 | Burlington Resources O & G Co LP | Higgs Unit #2HH12134174 | 9,000 |
| 716715 | May 20, 2011 | May 20, 2011 | Eagleridge Operating, LLC | Mayday-Lattimore Gas Unit #2HH12134173 | 8,700 |
| 716715Amendment | May 20, 2011 | May 20, 2011 | Eagleridge Operating, LLC | Mayday-Lattimore Gas Unit #2HH12134173 | 8,300 |
| 716235 | May 19, 2011 | May 19, 2011 | Devon Energy Production Co, L.P. | Dcco 1 - Dcco 3 (SA) #1HH12134171 | 9,000 |
| 716223 | May 19, 2011 | May 19, 2011 | Devon Energy Production Co, L.P. | Casto-Stevens (SA) 'A' #1HH12134168 | 9,000 |
| 716179 | May 19, 2011 | May 19, 2011 | Devon Energy Production Co, L.P. | Casto-Ponder-CT Four (SA) #3HH12134170 | 9,000 |
| 715716 | May 17, 2011 | May 17, 2011 | Devon Energy Production Co, L.P. | Casto-Ponder-CT Four (SA) #4HH12134166 | 9,000 |
| 715699 | May 17, 2011 | May 17, 2011 | Devon Energy Production Co, L.P. | Porter - Yarbrough B (SA) #1HH12134167 | 9,000 |
| 714959 | May 4, 2011 | May 4, 2011 | Devon Energy Production Co, L.P. | Hardeman, Dorothy Jean #7HH12134163 | 9,000 |
| 714851 | Apr 29, 2011 | Apr 29, 2011 | Encana Oil & Gas(usa) Inc. | Turner C #7HH12134161 | 9,000 |
| 714834 | Apr 29, 2011 | Apr 29, 2011 | Encana Oil & Gas(usa) Inc. | Turner C #6HH12134162 | 9,000 |
| 714483 | Apr 29, 2011 | Apr 29, 2011 | Devon Energy Production Co, L.P. | Dcco 3- Dcco 1 (SA) #3HH12134159 | 9,000 |
| 714475 | Apr 29, 2011 | Apr 29, 2011 | Devon Energy Production Co, L.P. | Dcco 3- Dcco 1 (SA) #4HH12134158 | 9,000 |
| 714835 | Apr 28, 2011 | Apr 28, 2011 | Encana Oil & Gas(usa) Inc. | Turner C #8HH12134160 | 9,000 |
| 714244 | Apr 21, 2011 | Apr 21, 2011 | Devon Energy Production Co, L.P. | Dcco 3 - Anna Beth Burns #30HH12134157 | 9,000 |
| 713582 | Apr 21, 2011 | Apr 21, 2011 | Devon Energy Production Co, L.P. | Sandford-Payton (SA) #1HH12134154 | 9,000 |
| 714446 | Apr 20, 2011 | Apr 20, 2011 | Devon Energy Production Co, L.P. | Huey #1HH12134156 | 9,000 |
| 714194 | Apr 20, 2011 | Apr 20, 2011 | Devon Energy Production Co, L.P. | Lau-Lau (SA) 'A' #1HH12134155 | 9,000 |
| 714240 | Apr 18, 2011 | Apr 18, 2011 | Encana Oil & Gas(usa) Inc. | MT Cole SA #505HH12134153 | 9,000 |
| 714072 | Apr 15, 2011 | Apr 15, 2011 | Devon Energy Production Co, L.P. | Dcco 1 - Dcco 3 (SA) #5HH12134150 | 9,000 |
| 714063 | Apr 15, 2011 | Apr 15, 2011 | Devon Energy Production Co, L.P. | Pennington-Sanders (SA) #1HH12134149 | 9,000 |
| 714056 | Apr 15, 2011 | Apr 15, 2011 | Devon Energy Production Co, L.P. | Dcco 1 - Dcco 3 (SA) #4HH12134148 | 9,000 |
| 713983 | Apr 15, 2011 | Apr 15, 2011 | Devon Energy Production Co, L.P. | Massey-Young-Stevens (SA) #1HH12134147 | 9,000 |
| 713963 | Apr 15, 2011 | Apr 15, 2011 | Devon Energy Production Co, L.P. | Massey-East Ponder (SA) 'A' #1HH12134146 | 9,000 |
| 713569 | Apr 15, 2011 | Apr 15, 2011 | Burlington Resources O & G Co LP | Eagle Farms B #4HH12134152 | 9,000 |
| 713564 | Apr 15, 2011 | Apr 15, 2011 | Burlington Resources O & G Co LP | Eagle Farms B #3HH12134151 | 9,000 |
| 713283 | Apr 13, 2011 | Apr 13, 2011 | Burlington Resources O & G Co LP | Fairman B Unit #1HH12134145 | 9,000 |
| 713218 | Apr 13, 2011 | Apr 13, 2011 | Devon Energy Production Co, L.P. | Lau-Cole Trust 3 (SA) #2HH12134144 | 9,000 |
| 713190 | Apr 13, 2011 | Apr 13, 2011 | Devon Energy Production Co, L.P. | Lau-Cole Trust 3 (SA) #1HH12134143 | 9,000 |
| 713198 | Apr 12, 2011 | Apr 12, 2011 | Burlington Resources O & G Co LP | Eagle Farms A #2HH12134142 | 9,000 |
| 713196 | Apr 12, 2011 | Apr 12, 2011 | Burlington Resources O & G Co LP | Eagle Farms A #1HH12134141 | 9,000 |
| 713741 | Apr 11, 2011 | Apr 11, 2011 | Carrizo Oil & Gas, Inc. | Justin Unit #6HH12134140 | 9,000 |
| 713739 | Apr 11, 2011 | Apr 11, 2011 | Carrizo Oil & Gas, Inc. | Justin Unit #5HH12134139 | 9,000 |
| 713738 | Apr 11, 2011 | Apr 11, 2011 | Carrizo Oil & Gas, Inc. | Justin Unit #4HH12134138 | 9,000 |
| 713737 | Apr 11, 2011 | Apr 11, 2011 | Carrizo Oil & Gas, Inc. | Justin Unit #3HH12134137 | 9,000 |
| 713736 | Apr 11, 2011 | Apr 11, 2011 | Carrizo Oil & Gas, Inc. | Justin Unit #2HH12134136 | 9,000 |
| 713735 | Apr 11, 2011 | Apr 11, 2011 | Carrizo Oil & Gas, Inc. | Justin Unit #1HH12134135 | 9,000 |
| 713735Amendment | Apr 11, 2011 | Apr 11, 2011 | Carrizo Oil & Gas, Inc. | Justin Unit #1HH12134135 | 9,000 |
| 713335 | Apr 8, 2011 | Apr 8, 2011 | Encana Oil & Gas(usa) Inc. | MT Cole #503HH12134131 | 9,000 |
| 713349 | Apr 5, 2011 | Apr 5, 2011 | Encana Oil & Gas(usa) Inc. | MT Cole #504HH12134134 | 9,000 |
| 713347 | Apr 5, 2011 | Apr 5, 2011 | Encana Oil & Gas(usa) Inc. | MT Cole #502HH12134133 | 9,000 |
| 713338 | Apr 5, 2011 | Apr 5, 2011 | Encana Oil & Gas(usa) Inc. | MT Cole #501HH12134132 | 9,000 |
| 713048 | Apr 1, 2011 | Apr 1, 2011 | Quicksilver Resources Inc. | Alliance Airport KS Unit #1HH12134130 | 9,000 |
| 713048Amendment | Apr 1, 2011 | Apr 1, 2011 | Quicksilver Resources Inc. | Alliance Airport KS Unit #1HH12134130 | 9,000 |
| 712489 | Mar 28, 2011 | Mar 28, 2011 | Burlington Resources O & G Co LP | Weatherby #2HH12134129 | 9,000 |
| 712063 | Mar 17, 2011 | Mar 17, 2011 | Eagleridge Operating, LLC | Mayday-Lattimore Gas Unit #1HH12134126 | 7,700 |
| 712063Amendment | Mar 17, 2011 | Mar 17, 2011 | Eagleridge Operating, LLC | Mayday-Lattimore Gas Unit #1HH12134126 | 8,900 |
| 711750 | Mar 17, 2011 | Mar 17, 2011 | Devon Energy Production Co, L.P. | Baker - Shoop 'B' (SA) #1HH12134128 | 9,000 |
| 711747 | Mar 17, 2011 | Mar 17, 2011 | Devon Energy Production Co, L.P. | Baker - Dcco 1 (SA) #2HH12134127 | 9,000 |
| 711403 | Mar 15, 2011 | Mar 15, 2011 | Devon Energy Production Co, L.P. | Smith B - Dcco 1 (SA) 'A' #1HH12134125 | 9,000 |
| 711763 | Mar 14, 2011 | Mar 14, 2011 | Quicksilver Resources Inc. | Alliance Graphics Unit #8HH12134124 | 9,000 |
| 711763Amendment | Mar 14, 2011 | Mar 14, 2011 | Quicksilver Resources Inc. | Alliance Graphics Unit #8HH12134124 | 9,000 |
| 709490 | Feb 2, 2011 | Feb 2, 2011 | J-W Operating Co. | McRae #40HH12134123 | 15,000 |
| 709211 | Jan 28, 2011 | Jan 28, 2011 | Titan Operating, LLC | Ingram NW Unit #1HH12134122 | 8,500 |
| 709211Amendment | Jan 28, 2011 | Jan 28, 2011 | Titan Operating, LLC | Ingram NW Unit #1HH12134122 | 8,500 |
| 708866 | Jan 25, 2011 | Jan 25, 2011 | Titan Operating, LLC | Prologis SW Unit #1HH12134121 | 8,000 |
| 708866Amendment | Jan 25, 2011 | Jan 25, 2011 | Titan Operating, LLC | Prologis SW Unit #1HH12134121 | 8,500 |
| 708573 | Jan 21, 2011 | Jan 21, 2011 | Encana Oil & Gas(usa) Inc. | Cole Trust Stony #18HH12134120 | 9,000 |
| 708670 | Jan 20, 2011 | Jan 20, 2011 | Vantage Fort Worth Energy LLC | Christian #6HH12134119 | 8,500 |
| 708670Amendment | Jan 20, 2011 | Jan 20, 2011 | Vantage Fort Worth Energy LLC | Christian #6HH12134119 | 8,900 |
| 708669 | Jan 20, 2011 | Jan 20, 2011 | Vantage Fort Worth Energy LLC | Christian #5HH12134118 | 8,500 |
| 708669Amendment | Jan 20, 2011 | Jan 20, 2011 | Vantage Fort Worth Energy LLC | Christian #5HH12134118 | 9,000 |
| 708314 | Jan 20, 2011 | Jan 20, 2011 | Titan Operating, LLC | Prologis NE Unit #2HH12134117 | 8,500 |
| 708267 | Jan 19, 2011 | Jan 19, 2011 | Encana Oil & Gas(usa) Inc. | Cole Trust Stony #15HH12134116 | 9,000 |
| 708565 | Jan 18, 2011 | Jan 18, 2011 | Encana Oil & Gas(usa) Inc. | Cole Trust Stony #17HH12134115 | 9,000 |
| 708380 | Jan 14, 2011 | Jan 14, 2011 | Encana Oil & Gas(usa) Inc. | Cole Trust Stony #16HH12134114 | 9,000 |
| 708199 | Jan 11, 2011 | Jan 11, 2011 | Titan Operating, LLC | Prologis NW Unit #1HH12134113 | 8,500 |
| 708199Amendment | Jan 11, 2011 | Jan 11, 2011 | Titan Operating, LLC | Prologis NW Unit #1HH12134113 | 8,500 |
| 708057 | Jan 10, 2011 | Jan 10, 2011 | XTO Energy Inc. | Cleveland Unit #A 3HH12134112 | 12,000 |
| 707956 | Jan 10, 2011 | Jan 10, 2011 | Chesapeake Operating, Inc. | AD #1HH12134111 | 9,000 |
| 707332 | Dec 28, 2010 | Dec 28, 2010 | Vantage Fort Worth Energy LLC | Mitchell-Baldinger #5HH12134109 | 8,500 |
| 707332Amendment | Dec 28, 2010 | Dec 28, 2010 | Vantage Fort Worth Energy LLC | Mitchell-Baldinger #5HH12134109 | 8,500 |
| 707332Amendment | Dec 28, 2010 | Dec 28, 2010 | Vantage Fort Worth Energy LLC | Mitchell-Baldinger (SA) #5HH12134109 | 8,900 |
| 707330 | Dec 22, 2010 | Dec 22, 2010 | Vantage Fort Worth Energy LLC | Mitchell-Baldinger #3HH12134107 | 8,500 |
| 707330Amendment | Dec 22, 2010 | Dec 22, 2010 | Vantage Fort Worth Energy LLC | Mitchell-Baldinger #3HH12134107 | 8,900 |