Shares up: Penn West assures investors on reserves
Chevron 'seeks Duvernay funding'
25 August 2014 11:25 GMT
Pressure mounts on Penn West
19 August 2014 10:47 GMT
Penn West warns of $181m errors
30 July 2014 10:24 GMT
Impairments colour Penn West red
07 March 2014 11:58 GMT
Penn West books $87m loss
01 May 2014 11:00 GMT
27 August 2014 22:07 GMT
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