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.
