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Asset Retirement Obligation
 12 Months Ended
Dec. 31, 2017
Asset Retirement Obligation [Abstract]  
Asset Retirement Obligation

14.Asset Retirement Obligation





 

 

 

 

 

 

As at December 31

 

 2017 

 

 

 

 2016 



 

 

 

 

 

 

Asset Retirement Obligation, Beginning of Year

$

 687 

 

 

$

 814 

Liabilities Incurred and Acquired

 

 11 

 

 

 

 18 

Liabilities Settled and Divested

 

 (333)

 

 

 

 (107)

Change in Estimated Future Cash Outflows

 

 88 

 

 

 

 (99)

Accretion Expense

 

 37 

 

 

 

 51 

Foreign Currency Translation

 

 24 

 

 

 

 10 

Asset Retirement Obligation, End of Year

$

 514 

 

 

$

 687 







 

 

 

 

 

 

Current Portion (See Note 11)

$

 44 

 

 

$

 33 

Long-Term Portion

 

 470 

 

 

 

 654 



$

 514 

 

 

$

 687