UPDATE 3-Enbridge pipeline joins Keystone XL in wait for U.S. permit

Reuters: A second Canadian pipeline project to the United States is now facing delays as operator Enbridge Inc awaits a U.S. presidential permit, a development that may strain prices for Alberta oil sands crude and relations between the two countries.

Enbridge, Canada's largest pipeline company, said it no longer expects to get the permit amendment it needs to expand its Alberta Clipper line in time to start pumping extra oil on it at midyear as it had planned. It applied for the permit in November 2012.

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