XML 17 R1.htm IDEA: XBRL DOCUMENT v3.7.0.1
Document and Entity Information - USD ($)
 12 Months Ended
Jun. 30, 2017
Sep. 07, 2017
Dec. 31, 2016
Document and Entity Information      
Entity Registrant Name EVOLUTION PETROLEUM CORP    
Entity Central Index Key 0001006655    
Current Fiscal Year End Date --06-30    
Entity Filer Category Accelerated Filer    
Document Type 10-K    
Document Period End Date Jun. 30, 2017    
Document Fiscal Year Focus 2017    
Document Fiscal Period Focus FY    
Amendment Flag false    
Entity Common Stock, Shares Outstanding   32,905,982  
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Public Float     $ 250,722,260