Compare the real monthly and annual savings of the WEX and ExxonMobil fuel cards on your fleet's gallons, after fees.
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About WEX
The WEX Fleet Card is the most widely accepted fleet card in the United States, working at roughly 95 percent of fuel stations plus tens of thousands of service locations. Its strengths are universal acceptance, detailed purchase controls with driver IDs, automatic accounting data on every transaction, tax exemption reporting and access to the WEX EDGE savings network that also discounts tires, hotels and other business costs.
About ExxonMobil
ExxonMobil's Business Fleet card competes directly with BP's, offering savings when fueling at Exxon and Mobil branded locations, driver PIN and odometer prompts, real-time spending alerts and a Fleet National card on the WEX network accepted at over 95 percent of retailers. The Mastercard version also covers non-fuel purchases like parts and service.
WEX and ExxonMobil pricing
WEX pricing is quote-driven, with independent reviews commonly reporting around $4 per card per month for the core Fleet Card. Rebates run 3 to 15 cents per gallon inside the WEX EDGE savings network and 1 to 3 cents elsewhere, with the top rates tied to fueling location and monthly volume; the truck-stop oriented Fleet Cross Roads card averages around 15 cents in-network. ExxonMobil offers 6 cents per gallon when buying 10,000 or more gallons monthly at branded locations, with the broad-acceptance Fleet National option trading rebate size for coverage, a standard pattern among the oil-major cards. The calculator applies each card's discount to your monthly gallons, subtracts card fees, and compares net savings and effective price per gallon at the current diesel price.
How they compare
WEX's core strength is acceptance breadth: its discounts are modest outside the EDGE network, but the card works nearly everywhere, so its savings are dependable rather than spectacular. ExxonMobil mirrors the BP model at Exxon and Mobil stations, so between the two oil majors the deciding factor is simply which brand's stations sit on your routes. The honest comparison is a blended one: estimate what share of your gallons would actually earn each card's in-network rate on your real routes, set the discounts accordingly, and let the annual difference decide.
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