Besides making it cheaper to fill my gas tank. The production and export of Shale Oil from the US has been driving down the price of crude oil for months now. Aside from lowering the cost of filling your tank, it's also had the benefit of making life miserable for some countries that have not been on Santa's or anybody elses nice list. Russia's economy is nosediving and so is Iran's. But the link below is about Venezuela and the effect the price drop in crude oil is having on that socialist utopia.
Gotta' love it!