Gas Prices

I don't often complain about gas prices, but I have been astonished lately about some gas price changes. It seems like every decrease in gas prices by a penny or two will be followed the next day by an increase of greater magnitude. Yesterday I noticed that gas has decreased in price by four cents. Then on my way home today, it had jumped up a whole dime a gallon! I recently read a prediction that gas prices would drop to $2.25 within a few months. I just do not see that happening.