Gotta love it.
And you wonder why they have no interest in adding any refinery capacity in the US. Currently, they run near peak capacity on average (which allows them to run near their highest efficiency point, decreasing their per unit production costs), and when some portion of refinery capacity is reduced due to maintenance or a natural disaster, supply shrinks while demand stays relatively flat, causing the equilibrium price to skyrocket. Their fixed production costs don't change when this happens, so their profit skyrockets right along with that equilibrium price.
heck, if I were Big Oil, I wouldn't be building any new refineries, either. They certainly have no economic incentive to do so.