thirdman I t hink this is a complicated question. Your reasoning implies more or less that the refiner buys and refines the product largely simultaneously. If this company bought crude some months ago when the price was a lot higher than it is now there would be a loss even if the margins had improved somewhat in the mean time It has been stated that this company has crude to the tune of 20 million dollars that has not been refined yet. If that crude cost a lot more than today's price there may arise a loss when the refined products are sold.