Credit cards that provide cash rewards for gas are some of the most popular on the market. A good gas credit card can be very useful, not only as a payment method but also to help offset gas prices.

What are the considerations when thinking of applying for a gas credit card? What should cardholders look for in gas credit cards?

Dr. James Philpot, certified financial planner and associate professor of finance and general business at Missouri State University, answers these questions and more on Credit Card Insider.