Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Details)

v2.4.0.8
Subsequent Events (Details)
In Thousands, unless otherwise specified
9 Months Ended 0 Months Ended 9 Months Ended 0 Months Ended
Mar. 31, 2014
USD ($)
Mar. 31, 2013
USD ($)
Mar. 31, 2014
Amadeus Basin
AUD
Mar. 31, 2014
Amadeus Basin
USD ($)
Apr. 15, 2014
Amadeus Basin
Subsequent Event
USD ($)
Apr. 15, 2014
Amadeus Basin
Subsequent Event
AUD
Subsequent Event [Line Items]            
Proceeds from second cash installment for the sale of Amadeus Basin assets $ 13,859 $ 0 15,000 $ 13,859 $ 4,624 5,000