That's a good question, but I would consider the average price. If break-even is around $50, we could conceivably break even if the price dropped to $40 for a couple months, then bumped back up to $60 for a couple months.

Still ... there are so many variables involved, it's pretty hard to pick a solid number without some stability in the marketplace for a couple of quarters I would think.

I like your question though, and would also appreciate hearing predictions.