IMPAIRMENT (Details) CAD in Thousands	12 Months Ended
Dec. 31, 2015 CAD $ / bbl $ / Mcf CAD / bbl CAD / Mcf $ / CAD	Dec. 31, 2014 $ / bbl $ / Mcf CAD / bbl CAD / Mcf $ / CAD	Dec. 31, 2013 $ / bbl $ / Mcf CAD / bbl CAD / Mcf $ / CAD
Impairment of Oil and natural gas properties:
Oil and natural gas properties	CAD 1,352,428
WTI Crude Oil US$/bbl (in dollars per barrel) \| $ / bbl	50.28	94.99	96.94
Exchange Rate US$/CDN$ (in US dollars per Canadian dollars) \| $ / CAD	1.27	1.09	1.03
Edm Light Crude CDN$/bbl (in Canadian dollar per barrel) \| CAD / bbl	59.38	94.84	93.19
U.S. Henry Hub Gas US$/Mcf (in dollars per Mcf) \| $ / Mcf	2.58	4.30	3.67
AECO Natural Gas Spot CDN$/Mcf (in Canadian dollars per Mcf) \| CAD / Mcf	2.69	4.60	3.16
Goodwill Impairment	CAD 0
Canada
Impairment of Oil and natural gas properties:
Oil and natural gas properties	286,700
U.S.
Impairment of Oil and natural gas properties:
Oil and natural gas properties	CAD 1,065,728

Represents the ceiling tests benchmark prices of AECO natural gas per thousands of cubic feet.

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Represents the ceiling tests benchmark prices of Edm light crude oil per barrel.

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Represents the ceiling tests benchmark prices of Henry Hub natural gas per thousands of cubic feet.

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Represents the ceiling tests benchmark prices of WTI crude oil per barrel.

+ References

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- Definition

Foreign exchange rate used to translate amounts denominated in functional currency to reporting currency.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
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- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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The expense recorded to reduce the value of oil and gas assets consisting of proved properties and unproved properties as the estimate of future successful production from these properties is reduced.

+ References

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-Publisher FASB
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