OPERATIONS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011	Dec. 31, 2010
Costs and expenses
General and administrative	$ 5,057	$ 5,575	$ 11,355	$ 10,619
Production taxes	2,946	3,131	5,097	3,689
Previously Reported Balance
Costs and expenses
Costs of operations	3,949		5,140
General and administrative	3,930		7,654
Exploration and business development	827		1,514
Reclass Adjustment
Costs and expenses
Costs of operations	(3,949)		(5,140)
General and administrative	1,645		2,965
Production taxes	3,131		3,689
Exploration and business development	(827)		(1,514)
Adjusted Balance
Costs and expenses
General and administrative	5,575		10,619
Production taxes	$ 3,131		$ 3,689