Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

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Document and Entity Information - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2015
Feb. 26, 2016
Jun. 30, 2015
Document and Entity Information [Abstract]      
Entity Registrant Name CALLON PETROLEUM CO    
Entity Central Index Key 0000928022    
Current Fiscal Year End Date --12-31    
Entity Filer Category Accelerated Filer    
Document Type 10-K    
Document Period End Date Dec. 31, 2015    
Document Fiscal Year Focus 2015    
Document Fiscal Period Focus FY    
Amendment Flag false    
Entity Public Float     $ 537.5
Entity Common Stock, Shares Outstanding   80,843,938  
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes