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Commitments (Tables)
9 Months Ended
Sep. 30, 2014
Commitments [Abstract]  
Summary of firm transportation volumes and related demand charges

 

Period Dekatherms per day  Demand Charges
Oct 2014  6,450  $0.20 - $0.67
Nov 2014 - May 2015  4,450  $0.20 - $0.67
Jun 2015 - Dec 2017  3,300  $0.22 - $0.67
Jan 2018 - May 2036  1,000  $0.22