Quarterly report pursuant to Section 13 or 15(d)

Oil and Gas Activities (Costs Incurred in Oil and Gas Property Acquisition, Exploration and Development Activities) (Details)

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Oil and Gas Activities (Costs Incurred in Oil and Gas Property Acquisition, Exploration and Development Activities) (Details) (USD $)
9 Months Ended 12 Months Ended
Mar. 31, 2014
Jun. 30, 2013
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]    
Proved Oil and Gas Property, Successful Effort Method $ 28,957,000 $ 35,377,000
Less accumulated depletion, depreciation and amortization (3,499,000) (5,814,000)
Total net proved oil and gas properties 25,458,000 29,563,000
Unproved Oil and Gas Property, Successful Effort Method 899,000 5,312,000
Wells in progress 17,303,000 923,000
Exploration expense 700,000  
United States
   
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]    
Proved Oil and Gas Property, Successful Effort Method 28,957,000 27,606,000
Unproved Oil and Gas Property, Successful Effort Method 269,000 261,000
Wells in progress 16,575,000 235,000
Australia
   
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]    
Proved Oil and Gas Property, Successful Effort Method 0 7,771,000
Unproved Oil and Gas Property, Successful Effort Method 0 3,976,000
United Kingdom
   
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities [Line Items]    
Unproved Oil and Gas Property, Successful Effort Method 630,000 1,075,000
Wells in progress $ 728,000 $ 688,000