Its funny when the Chinese tried to buy Unocal, there was a big fuss in the states, and yet no one in Canada peeps when US companies buy up Canadian energy companies (like Terasen Gas). Part of the Nafta agreement was that the US has access to cheap Canadian oil. Of course the US totally ignored all the latest NAFTA rulings on softwood lumber
(from which it has collected 5billion in duties that NAFTA says it should return) The US says it wont return it and that it wont abide by the NAFTA rulings.   
Well like the former Prime Minister CHretien said, the US can burn softwood for energy...

When Pierre Trudeau established the National Energy policy 25 years ago
there was major bickering by Americans. But of course it is no different that keeping UNOcal away from the CHinese and maintaining a 700million barrel strategic reserve..

Its time we slapped an export duty on canadian oil, to offset the illegal lumber duty imposed by the US.