This is a weekly chart of wholesale gasoline. Gas is currently at $2.75 a gallon (lower than the retail price by about a dollar).
Gasoline is painting itself into a corner. A quickly approaching point will cause the price to break out of this triangle. A wedge like this predicts a dramatic change. It is unlikely to hold the current price. And when it breaks out it will either go up or down. Given the scale of the chart (rather long term) it could move quite far.
This looks like a bearish rising wedge, meaning the price should break downwards, and send retail gas down well below $3.00, maybe to $2.50. That would no doubt give much needed relief to recession-strapped Americans, truckers, taxi drivers, and the whole American economy in general. But this wedge can also break upwards. Gasoline could spike to $5.00. This would be the devastating blow that crushes all hope of any quick recovery from the current recession. Even mainstream economists would start uttering the anathematic word hyper-inflation.