It's true that the current picture looks less concerning than it has at certain times in the past. At the same time, there isn't a very clear pattern in the periods of angst, as opposed to periods where it seems fine. I'm not confident that we can explain all that, but we do think that logistical connections are the key thing, the bottlenecks that have given rise to this situation in the past. Over time, that seems to be easing on trend line because of increased use of rail to make delivery, and certain pipelines have been expanded or fixed up, etc. The capacity constraints seem to be easing through time, and therefore, they get a gradual convergence in those prices, not total, but gradual.
On April 29th, 2014. See this statement in context.