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Why gas prices go up

Here is a great map showing the gas prices by county for all of the USA by using heat colors… red for high prices:

http://gasbuddy.com/gb_gastemperaturemap.aspx

It is amazing to see the nationwide variation in price.

You will all notice, even Jumbles in the UK, that differences in gasoline prices are to a large extent a function of taxes national, state and county/provincial taxes. Note how California, for example, is all red and the [...]