To check the balance on an ExxonMobil gift card, visit the official Exxon website at Exxon.com, and click the tab in the menu bar labeled Gas Cards and Payment. Choose Gift Cards from the drop-down menu, and follow the link for checking a gift card balance, explains ExxonMobil.
ExxonMobil directs users to an outside vendor for registering and checking balances on a gift card, notes the company's website. After following the ExxonMobil link to arrive at SVMcards.com, enter your 19-digit gift card in the slot provided, and verify the CAPTCHA code provided by the company. Submit the information to view the remaining balance on your ExxonMobil gift card.