Exxon Mobil Smart Card+™ Review

The Exxon Mobil Smart Card+™ is a closed-loop card: it works, and earns rewards, only at Exxon- and Mobil-branded stations, nowhere else, not even at the gas station across the street. That fact should shape your expectations before anything else on this page.

Here’s the math: a driver buying 40 gallons of regular fuel and $50 in non-fuel purchases a month, entirely at Exxon or Mobil, nets $78 in year one, and every year after, since there’s no sign-up bonus or annual fee to skew the numbers.

There are no points to earn or redeem here. Instead, cardholders report instant per-gallon savings at the pump and a statement credit on non-fuel purchases, nothing to track or redeem. Based on verified issuer data from citi.com and exxonmobilfuels.com, this review walks through exactly what that’s worth, and who it’s worth it for.

Who This Card Is For

This card makes the most sense for three kinds of drivers, all defined by how much of their spending actually happens at Exxon or Mobil.

A driver who fuels almost exclusively at Exxon or Mobil, buying around 40 gallons a month of Regular, mid-grade, and diesel fuel, earns $48 a year in fuel savings alone. Switch that same 40 gallons to Synergy Supreme+™ premium gasoline, and the savings rise to $57.60 a year.

Someone who also picks up convenience-store items or car washes at Exxon or Mobil, say $50 a month, adds another $30 a year in statement credits on top of the fuel savings, for $78 a year total on the baseline profile.

A heavier driver, buying 80 gallons of regular fuel a month and spending $100 a month on non-fuel purchases (hitting the $1,200 annual non-fuel cap), earns $156 a year, the ceiling this card can realistically pay out.

This card is not a fit for anyone who doesn’t regularly fuel at Exxon or Mobil specifically. It earns $0 anywhere else, unlike a universal gas-rewards card. It’s also not for anyone chasing a sign-up bonus right now, since none exists, or anyone who might carry a balance given the flat 33.24% APR. Citi also doesn’t publish a minimum credit score for this card, so approval odds are hard to gauge going in; see What Is a Good Credit Score to Get Approved for a Credit Card? for general guidance. Drivers who want a card that earns everywhere, not just at one brand, should look at Best Credit Cards for Gas instead.

Sign-Up Bonus: Is It Worth It?

The short answer is there isn’t one to evaluate. As of September 2026, cardholders report no active sign-up bonus on the Exxon Mobil Smart Card+™, confirmed on both citi.com and exxonmobilfuels.com.

A promotional offer did exist in 2022, an extra 30 cents per gallon for the first two months, but that offer has expired and is not available today. It’s worth mentioning only because it still circulates in older articles and forum posts, not because it’s something to chase.

Because both the bonus and the annual fee are $0, net first-year value and ongoing value are identical for this card: $78 a year on the baseline profile of 40 gallons of regular fuel and $50 in non-fuel purchases a month. There’s no bonus math to show, because there’s no bonus.

Earning Rewards: The Math

The Exxon Mobil Smart Card+™ doesn’t fit the standard points-per-dollar template. It has three distinct earning mechanics, two per-gallon fuel discounts and a capped non-fuel statement credit, and no points currency at all.

A driver picks one fuel grade, not both. The first two rows are alternatives, not additive figures to stack together. Buying regular, mid-grade, or diesel earns 10 cents off per gallon; buying Synergy Supreme+™ premium earns 12 cents off per gallon. Either way, the non-fuel statement credit applies on top, at 5% of non-fuel Exxon/Mobil purchases, capped at the first $1,200 spent per year (a maximum of $60 a year).

Here’s what I’d tell a friend running the numbers against a plain cash-back card: at the baseline profile, total Exxon/Mobil spend is $150 in fuel plus $50 in non-fuel purchases, $200 a month, or $2,400 a year. A flat 2% cash-back card earns 2% of $2,400, or $48 a year, on that same total spend, usable anywhere. The Exxon Mobil Smart Card+™ earns $78 a year on the identical spend at regular-fuel rates, $30 a year more, but only because every dollar of it happens at an Exxon- or Mobil-branded location. That same $2,400 spent anywhere else earns this card exactly $0, while the flat-2% card would still earn $48 a year regardless of merchant.

Redeeming Rewards

Both reward types here apply automatically and continuously. The per-gallon fuel discount posts instantly at the pump, before you even swipe your card twice. The 5% non-fuel reward posts as a statement credit on your monthly bill.

There are no points to track, no redemption portal to log into, and no minimum threshold to hit before rewards become usable. Nothing expires. There are also no transfer partners, since there’s nothing to transfer, no miles or points sitting in an account waiting to be converted into something else.

This is the simplest redemption mechanic reviewed on this site so far. The tradeoff for that simplicity isn’t any redemption friction, it’s the closed-loop restriction: $0 everywhere except Exxon and Mobil.

Fees and Costs

$0 is the annual fee here, stated plainly: no annual fee, ever, a permanent $0, not a first-year waiver that jumps later. With a $0 fee, there’s nothing to break even against, so there’s no spend threshold to calculate before this card starts paying for itself.

The APR is a flat 33.24% variable rate (Prime + 26.49%), with no creditworthiness-based range at all, everyone who’s approved gets the same number. Carry a balance on this card and the fuel savings and statement credits disappear fast against that rate.

No foreign transaction fee line item appears in Citi’s official fee disclosures for this card, though that’s an absence-based inference rather than an explicit “we don’t charge this” statement, and it’s moot anyway since the card only works at U.S. Exxon and Mobil stations. Balance transfers aren’t offered on this card either, inferred the same way, from the absence of a balance-transfer APR row in Citi’s official Pricing Information Table and Card Agreement.

Pros and Cons

Pros:

• $0 annual fee, permanently, no waiver period to track or worry about later
• Instant savings at the pump, 10 to 12 cents per gallon, with no points to earn or redeem
• 5% back as a statement credit on non-fuel Exxon/Mobil purchases, up to $60 a year
• Genuinely simple: rewards apply automatically, no rotating categories, no activation, nothing expires

Cons:

• 100% closed-loop: earns $0 anywhere except Exxon and Mobil stations, including other gas stations
• No sign-up bonus currently offered
• Flat 33.24% variable APR with no intro 0% APR offer of any kind
• Citi does not publish a minimum credit score for this card, so approval odds are genuinely unclear going in
• Non-fuel reward capped at $1,200 a year in spend, a maximum of $60 a year in credits, a modest ceiling

How It Compares

Against universal gas-rewards cards that work at any station, the Exxon Mobil Smart Card+™ has to earn its keep on brand loyalty and simplicity, not raw dollar math.

Amex Blue Cash Everyday® earns 3% back at any U.S. gas station, capped at $6,000 a year, with a $0 annual fee and a current $200 sign-up bonus after $2,000 in spend within 6 months.

At the $150-a-month fuel baseline, Blue Cash Everyday earns $54 a year in gas rewards alone, plus a $200 bonus most years, beating this card’s $48 to $57.60 a year in fuel savings on pure dollar math, and it works at any gas station, not just Exxon or Mobil. This card’s case is brand loyalty and pump-side simplicity, not raw earning power.

Costco Anywhere Visa® by Citi earns 5% at Costco gas and 4% at all other gas stations and EV charging, capped at $7,000 a year combined, with no card fee beyond a required Costco membership ($65-plus a year).

For a Costco member, that 4% to 5% outearns this card’s flat per-gallon discount at nearly any realistic fuel volume, but it demands an active paid membership. This card demands nothing but a willingness to fuel up specifically at Exxon or Mobil.

Its closest direct competitor is a different brand’s version of the same idea: the bp rewards Visa® review covers a card with a similar per-gallon discount at bp and Amoco pumps, but built on a standard Visa rather than a closed loop, so it still earns points everywhere once fuel spend moves off-brand.

Nick’s Verdict

Based on verified issuer data, the Exxon Mobil Smart Card+™ is a genuinely simple, no-fee, no-downside card for drivers who already fuel almost exclusively at Exxon or Mobil and want something that applies savings automatically, with nothing to track. For a reader buying 40 gallons of regular fuel and $50 in non-fuel purchases a month, entirely at Exxon or Mobil, this card returns $78 net every year, with a $0 annual fee in every case.

It’s not the right pick for anyone who shops around for the cheapest gas, anyone who wants a card that also earns somewhere other than Exxon or Mobil, anyone chasing a sign-up bonus right now, or anyone at risk of carrying a balance given the flat 33.24% APR.

Honestly, this card’s math isn’t competitive with the best universal gas-rewards cards on this site, Amex Blue Cash Everyday and the Costco Anywhere Visa, for a driver who can use those cards anywhere. Its entire case rests on brand loyalty and a genuinely frictionless redemption experience, not on out-earning the field. See how it stacks up against cards that work everywhere on Best Credit Cards for Gas.