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Asset Impairment (Tables)
 6 Months Ended
Jun. 30, 2016
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)
2016
2015
2016
2015
Permian Basin oil properties
 
 
 
 
Central Basin Platform
$
—

$
51,474

$
187,043

$
51,474

Delaware Basin
—

—

21,288

4,330

San Juan Basin properties
—

—

7,519

—

Permian Basin unproved leasehold properties
—

8,939

4,135

10,944

San Juan Basin unproved leasehold properties
—

—

40

248

Total asset impairments
$
—

$
60,413

$
220,025

$
66,996