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Asset Retirement Obligations (Notes)
 12 Months Ended
Dec. 31, 2017
Asset Retirement Obligations, Noncurrent [Abstract]  
Asset Retirement Obligations
Asset Retirement Obligations

The following table presents the reconciliation of the beginning and ending aggregate carrying amounts of short-term and long-term legal obligations associated with the retirement of property, plant and equipment for the years ended December 31, 2017 and 2016 (in thousands):
 
2017
 
2016
 
 
 
 
Carrying Amount at Beginning of Period
$
912,926

 
$
811,554

Liabilities Incurred (1)
54,764

 
212,739

Liabilities Settled (2)
(61,871
)
 
(94,800
)
Accretion
34,708

 
32,306

Revisions
(9,818
)
 
(38,286
)
Foreign Currency Translations
16,139

 
(10,587
)
Carrying Amount at End of Period
$
946,848

 
$
912,926

 
 
 
 
Current Portion
$
19,259

 
$
18,516

Noncurrent Portion
$
927,589

 
$
894,410

 
(1)
Includes $164 million in 2016 related to Yates transaction (see Note 17).
(2)
Includes settlements related to asset sales.

The current and noncurrent portions of EOG's asset retirement obligations are included in Current Liabilities - Other and Other Liabilities, respectively, on the Consolidated Balance Sheets.