Maybe in a moment Mr. Peeling can address that, but it's my understanding that the oil sands for a number of years sat rather dormant with nothing happening. The reason for that was primarily and almost exclusively the market price of oil; it simply wasn't cost-effective or efficient in any way to try to extract the oil out of the oil sands. So I rather think the biggest incentive that keeps the oil sands going might be the market price of oil.
But Mr. Peeling, I'm not aware of—and if I'm missing something, I'd like to know—what incentives specifically are driving the activity in the oil sands. Are there some I'm not aware of?