I can't put a precise figure on it. I don't have an exact number in terms of royalties. Different numbers are bandied about. But in terms of oil, which is the commodity that most people talk about right now, depending on when you're talking about it, it's in the range of a $30 or $40 discount right now per barrel, compared to global benchmarks. When you think about it, we're pumping roughly three million barrels a day, and when you start adding that up, a lot of money in profits is being lost by the industry. You can apply royalty rates to that and you're still talking billions of dollars—billions.
There's also the lost investment activity, as I said in my presentation. Drilling activity in natural gas has petered out right now, because you can't make money. Conventional natural gas is not economic right now in Alberta.