Of course the Mac was created in part as sort of a backlash against the command line interface of DOS (typing long strings of complicated computing commands, not pointing and clicking with a mouse like we're used to now), though Mac OS X now boasts a Unix Shell terminal with its own command line interface.

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Fuel from Grangemouth is distributed right across Scotland, although other distribution points like Shell's oil terminal in Aberdeen and the Inverness depot have also been picketed.

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Khan added that he met with the Shell chairman, Jorma Ollila, while at Davos and that Shell is committed to a new liquid natural gas terminal for Pakistan.

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Three east coast refineries have been shut down in the past four months (first Sunoco, then Valero, and most recently Shell announced Jan. 7 it would shutter its Montreal refinery and turn the site into an oil terminal).

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On its website, petrol company Shell said prices can vary from region to region due to "factors such as distance from the refinery or distribution terminal to the petrol station and the number of customers in the region".

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