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Asset Impairment (Tables)
 6 Months Ended
Jun. 30, 2017
Property, Plant and Equipment [Abstract]  
Summary of Impairments Recognized
Impairments recognized by Energen are presented below:



Three months ended
June 30,
Six months ended
June 30,
(in thousands)
2017
2016
2017
2016
Permian Basin oil properties
 
 
 
 
Central Basin Platform
$
—

$
—

$
1,096

$
187,043

Delaware Basin
—

—

—

21,288

San Juan Basin properties
—

—

—

7,519

Permian Basin unproved leasehold properties
29

—

393

4,135

San Juan Basin unproved leasehold properties
—

—

—

40

Total asset impairments
$
29

$
—

$
1,489

$
220,025