Quarterly report pursuant to Section 13 or 15(d)

Asset Retirement Obligations (Details)

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Asset Retirement Obligations (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Asset Retirement Obligations    
Asset retirement obligations - beginning of period $ 58,979  
Obligations settled (154)  
Obligations incurred for wells drilled and producing properties acquired 430  
Accretion expense 976 $ 690
Effect of deconsolidation of Antero Midstream Partners LP (7,518)  
Asset retirement obligations - end of period $ 52,713