v3.5.0.2
Document And Entity Information - shares
6 Months Ended
Jun. 30, 2016
Aug. 03, 2016
Document And Entity Information [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Jun. 30, 2016  
Document Fiscal Year Focus 2016  
Document Fiscal Period Focus Q2  
Entity Registrant Name Contango Oil & Gas Company  
Entity Central Index Key 0001071993  
Current Fiscal Year End Date --12-31  
Entity Filer Category Accelerated Filer  
Entity Common Stock, Shares Outstanding   24,635,692
Entity Current Reporting Status Yes