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INVENTORY (Details) - CAD CAD in Millions | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
INVENTORY |  |
Natural gas | CAD 594 | CAD 627
Crude oil | 634 | 477
Other commodities | 5 | 7
Total | CAD 1,233 | CAD 1,111

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