DeHaan said the double blow of Irma evacuations and Hurricane Harvey's hit on Houston was contributing to the shortages.
“A lot of it is about of the sheer amount of evacuations overwhelming the system,” he said. “This is a big test of the system ... In this case Harvey was a pretty major incident, so things will gradually improve over the next few weeks.”
Angela Holland, president of the Georgia Association of Convenience Stores, said the volume of traffic on highways has made it difficult to get gas delivered to stations where it is out.
"We're doing out very best to make sure we have fuel for the motoring public," she said. "We're doing absolutely everything we can."