Since the rest of the western world helps supply China and India with refined fuels it puts a monetary incentive for the industry in the US to export to Europe and the other developing countries that are willing to pay the premium price it demands. There isn't enough refining capacity overseas for diesel demand to be satisfied. Right now there is a sulplus of gasoline stocks here but a deficit in diesel stocks. The speculators in refined petroleum especially diesel are making a huge profit. Capitalism at it's best-worst!!
Bud

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1987 300D Turbo, 175k mi., 1998 BMW 323i Convertible, 1997 F250 4x4 7.3L PSD