Some of the diluent is recycled, for sure. We import diluent and we also have the opportunity to produce more diluent in Canada. Fracking in the Bakken, for example, produces a lighter oil that could also be used for diluent. But diluent can be recycled. It's not a major input cost to the business; it's simply a part of doing business that ends up back in the hydrocarbon value chain.
On April 1st, 2014. See this statement in context.