Asset Retirement Obligations (Tables)

3 Months Ended

Jul. 31, 2015

Asset Retirement Obligation Disclosure [Abstract]

Schedule of Changes to Asset Retirement Obligation

	July 31, 2015			April 30, 2015
Balance, beginning of period	$	918,430		$	818,010
Additions		-			52,514
Accretion		10,056			47,906
		928,486			918,430
Less: Current portion for cash flows expected to be incurred within one year		(541,958	)		(541,959	)
Long-term portion, end of period	$	386,528		$	376,471

Schedule of Expected Timing of Asset Retirement Obligations

Year Ending April 30,
2016 (remainder of year)		541,958
2017		212,000
2018		-
2019		-
2020		-
Thereafter		391,032
		1,144,990
Effect of discount		(216,504	)
Total	$	928,486