v3.5.0.2
Document and Entity Information - shares
6 Months Ended
Jun. 30, 2016
Jul. 25, 2016
Document and Entity Information    
Entity Registrant Name CABOT OIL & GAS CORP  
Entity Central Index Key 0000858470  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Document Type 10-Q  
Document Period End Date Jun. 30, 2016  
Document Fiscal Year Focus 2016  
Document Fiscal Period Focus Q2  
Amendment Flag false  
Entity Common Stock, Shares Outstanding   465,148,234
Entity Current Reporting Status Yes