These days, the price of gas goes up and down faster than the temperature outside! I’m not sure if I’ll ever understand the correlation between the price of a barrel of oil and a gallon of gas. And why does diesel cost so much more, when it’s refined less than gasoline? Remember that not too long ago, we used to joke that a gallon of gas was cheaper than bottled water? They’re getting closer together as time goes by, and the water’s not getting cheaper.