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Inventories
 12 Months Ended
Dec. 31, 2018
Classes Of Inventories [Abstract]  
Inventories

16. INVENTORIES

 

As at December 31,

2018

 

 

2017

 

Product

 

 

 

 

 

 

 

Refining and Marketing

 

703

 

 

 

894

 

Oil Sands

 

223

 

 

 

414

 

Deep Basin

 

-

 

 

 

2

 

Conventional

 

-

 

 

 

2

 

Parts and Supplies

 

87

 

 

 

77

 

 

 

1,013

 

 

 

1,389

 

 

During the year ended December 31, 2018, approximately $15,664 million of produced and purchased inventory was recorded as an expense (2017 – $12,856 million; 2016 – $9,964 million).

As a result of a decline in refined product prices, Cenovus recorded a write-down of its product inventory of $47 million from cost to net realizable value as at December 31, 2018.