Going back a few years, we in fact had a big inventory of natural gas in North America, and particularly in Canada. Until deregulation, Canada required a thirty-year surplus of natural gas in order to allow exports. With deregulation, that was relieved. The reserve-to-production ratio in North America has now come down to around nine or ten years; in Canada, it's actually a little lower than that right now.
What happened in 2000--and again, you could probably spend two hours just on what happened in 2000--was that it caught a lot of people by surprise, probably a lot of people who should not have been caught by surprise. I suspect there was a lot of over-optimism as to the amount of gas that was available in the western Canada sedimentary basin and in the Gulf of Mexico. In a very short period of time, people found that well productivity was dropping, that new wells were not producing flows as they were expecting, and there was a fairly dramatic change in expectations in terms of the availability of gas in North America.
The gas is there--there is lots of it--but it's quite clear now that we're going after much more expensive supplies.