Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

v2.4.0.8
Document and Entity Information
6 Months Ended
Dec. 31, 2013
Feb. 12, 2014
Document And Entity Information [Abstract]    
Document Type 10-Q  
Document Period End Date Dec. 31, 2013  
Amendment Flag false  
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2014  
Current Fiscal Year End Date --06-30  
Entity Central Index Key 0000061398  
Entity Current Reporting Status Yes  
Entity Filer Category Smaller Reporting Company  
Entity Registrant Name MAGELLAN PETROLEUM CORP /DE/  
Entity Voluntary Filers No  
Entity Well-known Seasoned Issuer Yes  
Entity Common Stock Shares Outstanding   45,348,709