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INVESTMENTS (Tables)
 12 Months Ended
Dec. 31, 2018
Financial Instruments [Abstract]  
Summary of investments
The loss (gain) from the investment in PrairieSky was comprised as follows:
 
 
2018

 
2017

 
2016

Fair value loss (gain) from PrairieSky
 
$
326

 
$
(3
)
 
$
(292
)
Dividend income from PrairieSky
 
(17
)
 
(17
)
 
(27
)
 
 
$
309

 
$
(20
)
 
$
(319
)
The loss (gain) from the investment in Inter Pipeline was comprised as follows:
 
 
2018

 
2017

 
2016

Fair value loss from Inter Pipeline
 
$
43

 
$
23

 
$
—

Dividend income from Inter Pipeline
 
(11
)
 
(10
)
 
(1
)
 
 
$
32

 
$
13

 
$
(1
)
As at December 31, 2018 and 2017, the Company had the following investments:
 
 
2018

 
2017

Investment in PrairieSky Royalty Ltd.
 
$
400

 
$
726

Investment in Inter Pipeline Ltd.
 
124

 
167

 
 
$
524

 
$
893