| net pipeline position |            date revised:   04/20/2011 10:10 

                                                                                                                                     
                                                                                                                                     
                                             Net                                                                                     
                                        Pipeline                                                                                     
                           Gas Date     Position                                                                                     
                           ----------   --------                                                                                     
                           04/01/11 F    -10.548                                                                                     
                           04/02/11 S     -7.640                                                                                     
                           04/03/11 S     -9.981                                                                                     
                           04/04/11 M    -14.291                                                                                     
                           04/05/11 T    -14.579                                                                                     
                           04/06/11 W     -5.620                                                                                     
                           04/07/11 T    -10.364                                                                                     
                           04/08/11 F    -14.286                                                                                     
                           04/09/11 S     -8.654                                                                                     
                           04/10/11 S     -8.763                                                                                     
                           04/11/11 M    -12.514                                                                                     
                           04/12/11 T      1.367                                                                                     
                           04/13/11 W      0.135                                                                                     
                           04/14/11 T     -0.773                                                                                     
                           04/15/11 F      4.816                                                                                     
                           04/16/11 S     -0.742                                                                                     
                           04/17/11 S    -12.795