ExxonMobil does not list telephone as a payment method for its credit cards. Customers can pay the balance of their ExxonMobil credit cards online or by mail, according to ExxonMobilCard.com.
As of 2015, ExxonMobil offers one personal credit card and two commercial credit cards to customers. The ExxonMobil Smart Card allows customers to save money when they buy Exxon- or Mobil-branded fuel. It also comes with a Speedpass key tag that enables customers to make purchases without their cards. The ExxonMobil Business Card allows businesses to choose their own billing dates. It also provides detailed invoices to businesses so that they can track their drivers' purchases easily, notes ExxonMobilCard.com.