Frederick A. Henderson
Analyst · a question
So let me talk about what we've done in the cost side, and then what we've done on the productivity side. On the cost side, you might recall in the first quarter, we took some actions in reduction in force, which reduced our manpower -- underground manpower by 20% and both including contracted employees, as well as full-time employees. Even with that, frankly, our production has increased, and so what we've seen is even with reduced manpower that we've continued to improve our advancement per shift and our productivity per person to a pretty significant degree, so cost-reduction on that side, manpower. We see a pretty significant reduction in cost on maintenance and repair. We embarked on a refurbishment program for our underground equipment about 2 years ago, which was largely, at this point, completed, and what we've seen is a follow through significantly lower maintenance repair costs. So on the numerator side, if you will, in terms of cost, we've seen absolute reductions in costs. We also had lower royalty cost, because prices have been down. We've seen some lower transportation cost, but the big issues have been manpower and maintenance. On the denominator side, what we've seen is continued improvement in advancement and in productivity. We have not seen improvement in yield and part of it is just, because we continue to face challenging geological conditions, but we've seen good productivity in terms of the manpower and, particularly, we had -- 2 years ago, we had a high percentage of our workforce, which are red hats. Today, we have virtually no red hats, and they're fully trained and productive. Last point I'd make is we've made some investments in our prep plant to improve the organic efficiency of the prep plant, including putting in a new circuit. And that's also proven to be beneficial for us. So I would say we made progress in both the numerator and the denominator side. And I would say it's been faster than what we have thought as we entered this year. So we're confident we can do even more.
Nathan Littlewood - Crédit Suisse AG, Research Division: Got it, okay. So, mean it sounds like you're managing these assets from margin, and there's more cost that can be taken out in order to protect that margin. Should we assume that those cost reductions would stick? Or if we saw recovering coal prices, are those costs likely to follow them back up?