Quarterly report pursuant to Section 13 or 15(d)

Segment and Geographical Data (Details)

v2.4.0.6
Segment and Geographical Data (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2012
segment
Dec. 31, 2011
Segment Reporting Information [Line Items]        
Number of Reportable Segments     2  
Revenues $ 1,748 $ 3,202 $ 3,409 $ 6,938
Revenue, Net 1,748 3,202 3,409 6,938
Consolidated net income (loss) (7,285) (4,557) (12,594) (3,617)
Nautilus Poplar, LLC (NP)
        
Segment Reporting Information [Line Items]        
Revenues 1,442 1,651 2,902 2,882
Consolidated net income (loss) (194) (307) (466) 3,757
Magellan Petroleum Australia Limited (MPAL)
        
Segment Reporting Information [Line Items]        
Revenues 306 1,551 507 4,056
Consolidated net income (loss) (5,694) (2,378) (7,517) (3,309)
Corporate
        
Segment Reporting Information [Line Items]        
Revenues 0 0 0 0
Consolidated net income (loss) (1,393) (1,870) (4,436) (4,060)
Inter-segment Elimination
        
Segment Reporting Information [Line Items]        
Revenues 0 0 0 0
Consolidated net income (loss) $ (4) $ (2) $ (175) $ (5)