What has happened in Alberta is that a very weak royalty regime over time has not captured a very large portion of the rent from the industry.
In addition to that, we have been subject to the very radical fluctuations in the global price for Alberta's products, exported synthetic crude oil and bitumen. This means we have very little control over revenue, when we have up to 30% of our budget coming from oil and gas royalties.
There are a combination of factors. There's an amount of rent that's not been captured. There's the way it was not saved, and then there's the insecurity and instability of that revenue, which means that we've had a lot of trouble, when oil prices fall, in actually funding our public services at the levels that are needed.