Is it worth getting a gas credit card? Financial planning expert Dr. James Philpot weighs in. January 11, 2019 by University CommunicationsGas credits cards can help you save money at the pump. There are a few types of gas credits cards available. Should you get one? If you do get one, what kind should you choose? Dr. James Philpot, certified financial planner and associate professor of finance and general business at Missouri State University, offers some advice on WalletHub.