CEO Don Walker says any border adjustment tax would be negative for the industry.
Pipeline firm intends to seek US$15 billion in damages over the rejection of Keystone XL in November.
Canada, the US and Mexico all vote against a review.
Commission says Canada has failed to counter evidence that it’s turning a blind eye to toxic leakage in the oil sands.
Obama and allies leverage the 20-year-old deal to sell benefits of Trans-Pacific Partnership.
EU delegate says “don’t worry,” agreement will be concluded soon.
A CEC report has found that Canada’s fossil fuel-powered generating plants average higher greenhouse gas emissions for the same amount of electricity than American or Mexican stations.