Asset Retirement Obligations (Tables)

6 Months Ended

Sep. 30, 2012

Asset Retirement Obligation Disclosure [Abstract]

Rollforward of the asset retirement obligations

Carrying amount of asset retirement obligations as of April 1, 2012	$	663,279
Liabilities incurred		18,437
Liabilities settled		—
Accretion expense		19,142
Carrying amount of asset retirement obligations as of September 30, 2012		700,858
Less: Current portion		50,000
Non-Current asset retirement obligation	$	650,858