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Asset Retirement Obligations (Tables)
9 Months Ended
Jun. 30, 2012
Changes to Asset Retirement Obligation

Changes to the asset retirement obligation were as follows:

 

    June 30, 2012     September 30, 2011  
Balance, beginning of period   $ 387,368     $ 386,934  
Liabilities incurred            
Effect of foreign exchange     5,017       (5,490 )
Disposal           (6,839 )
Accretion expense     12,503       12,763  
Balance, end of period   $ 404,888     $ 387,368