Annual report pursuant to Section 13 and 15(d)

Supplemental Oil and Gas Information (Unaudited) - Proved Oil and Gas Quantities (Details)

v2.4.0.8
Supplemental Oil and Gas Information (Unaudited) - Proved Oil and Gas Quantities (Details)
12 Months Ended
Jun. 30, 2014
Jun. 30, 2013
United States | Oil
   
Average Sales Price and Production Costs Per Unit of Production [Line Items]    
Average Sales Prices 86.11 82.90
Australia | Gas
   
Average Sales Price and Production Costs Per Unit of Production [Line Items]    
Average Sales Prices   4.92