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CALGARY — Some of the world’s costliest energy projects are in Alberta’s oil sands and some could be cancelled without higher oil prices, according to a new report by a London-based financial think-tank that focuses on climate risk.

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The study by the Carbon Tracker Initiative highlighted 20 of the biggest projects around the world that need a minimum oil price of US$95 a barrel to be economically viable.

Most on the list require prices well north of US$110 a barrel and a few in the oil sands even need prices higher than US$150, said the report.

Crude for September delivery was at around US$97 a barrel in New York on Friday.

In total, the 20 projects represent close to $91 billion in capital spending over the next decade.