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Commitments and Contingencies (Tables)
3 Months Ended
Dec. 31, 2012
Summary of Our Environmental Reserve Activity

A summary of our environmental reserve activity for the three months ended December 31, 2012 is shown below:

 

Balance, September 30, 2012

     $ 16,754      

Expenditures

     (2,088)     
  

 

 

 

Balance, December 31, 2012

     $         14,666