Gas Prices in Kalifornia..
I run into the same situation here in NC, albeit on a completely different scale. I live just above the SC border in NC. Gas here is $3.33 right now. I can drive 10 miles into SC and get it for $3.09. I used to live up near the VA border and had the same situation up there. It's all state tax differences. NC has some of the highest gas tax in the SE... If SC can sell gas for $3.09 and make a profit on it then you know that a state selling it for $4.00 is making a huge windfall in tax revenue.