Let me just add one component to what my colleague has said: the transmission price. The tolls of the TransCanada are an issue.
Clearly, to take natural gas from western Canada to eastern Canada costs a lot in terms of the tolls that are in existence. This is an issue that is being dealt with by the NEB. Right now you can bring in natural gas from the Marcellus field in the U.S. more cheaply than we can supply it from the west to the east, so there may be a trade imbalance if we don't look at that issue.
In fact, going back to my learned colleague Mark, is the North American strategy to import natural gas from the U.S. because of exorbitant tolls on the TransCanada Pipeline? There's an issue for you.