A recent $34 billion expansion triples the amount of crude shipped from Canada's West Coast, but customers have worries about the quality of the product they are receiving.

Canada has secured the surrender of the last remaining permits for oil and gas development off its Pacific Coast, the federal natural resources minister said on Wednesday, after Chevron Canada voluntarily relinquished 23 permits.

A First Nation in northern Alberta says it has told the Alberta Energy Regulator that oil and gas producer Obsidian Energy cannot proceed with plans to expanded drilling on its territory due to concerns about earthquakes.