I'm changing gears now slightly and trying to wrap my head around some of the sums involved in terms of the cash required for the deal. You've indicated that you've already made significant investments in the refinery in the last six years—$400 million--and despite that, another $600 million is required.
I have a twofold question. First of all, the $400 million of investment that you made in the last six years, what have those investments been made in? Secondly, what's the purpose of the remaining $600 million in investments?