Gas prices are dropping across the US. Why now? Which states could hit $3 per gallon?

After the national average for gas surpassed $5 per gallon in June, U.S. drivers are finally finding some relief at the pump. But how low could prices go?

...

"There might be a little more relief coming at the pump," said Rachel Ziemba, adjunct senior fellow at the Washington, D.C.-based think tank Center for a New American Security whose research area includes energy. "It's possible that some states could get into the lower threes. I don't see that happening nationally outside of some sort of deep recession, which I wouldn't wish on us."

Read the full story and more from USA Today.