As a complement, building a refinery is a 40-year endeavour, as a minimum, in terms of looking at returns over a long period. An economist would tell you that by and large this business is roughly an 8% to 10% business. You are looking, in terms of a return, at 10% on average over a long period. Given how capital intensive the business is, you have to think about it twice before spending that kind of money.
On January 31st, 2012. See this statement in context.