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Acquisitions and Dispositions (Tables)
6 Months Ended
Jun. 30, 2019
Business Combinations [Abstract]  
Fair Value of Net Assets Acquired The following table summarizes the estimated acquisition date fair values of the acquisition:
Evaluated oil and natural gas properties
$
253,089

Unevaluated oil and natural gas properties
287,000

Asset retirement obligations
(570
)
Net assets acquired
$
539,519