If you fill up at Exxon or Mobil regularly, the Exxon Mobil Smart Card+ is built for you. It takes money off every gallon at the pump with no annual fee attached. But before you apply, it pays to know whether your credit score puts you in a good position to get approved.

Citi issues this card and evaluates more than just your credit score. Your income, debt load, and payment history all factor in. This guide breaks down what score you’ll likely need, what else matters, and whether the card is worth it for your situation.
What Credit Score Do You Need for the Exxon Mobil Smart Card+?
Most applicants will want a credit score of at least 640 to qualify for the Exxon Mobil Smart Card+. A score in the mid-600s or higher gives you the strongest approval odds, while scores closer to 580 may still get through in some cases depending on the rest of your financial profile.
Citi does not publish a hard minimum credit score for this card. That means approval is never guaranteed at any score level, and two applicants with the same score can get different results based on income, existing debt, and credit history.
How the Exxon Mobil Smart Card+ Works
The Exxon Mobil Smart Card+ is a proprietary card, which means it can only be used at participating Exxon and Mobil stations. You can use it at the pump, through the Exxon Mobil Rewards+ app, or in-store at most locations for snacks, drinks, and car washes.
The card’s rewards are straightforward. Here is what you get on every purchase:
- Premium fuel: Save 12¢ per gallon on Synergy Supreme+ premium gasoline, applied instantly at the pump.
- All other fuel grades: Save 10¢ per gallon on regular, midgrade, and diesel fuel.
- In-store and car washes: Earn 5% back as a statement credit on your first $1,200 in non-fuel purchases per year at Exxon and Mobil locations.
- Annual fee: $0.
If the discount cannot be applied at the point of sale for any reason, Citi will credit the savings to your account as a statement credit within one to two billing cycles.
The APR Is High
The Exxon Mobil Smart Card+ carries a variable APR of 33.24%. That is well above average, and it is the card’s biggest drawback. If you pay your balance in full every month, the rate is irrelevant. If you carry a balance even once, the interest will quickly eat into whatever you saved at the pump.
This card works best as a pay-in-full card. If you tend to carry a balance month to month, a card with a lower APR would serve you better.
Pros & Cons of the Exxon Mobil Smart Card+
No card is perfect, and this one has a clear trade-off between its simplicity and its limitations. Here is where it lands:
Pros
- No annual fee: You keep every cent of your pump savings without paying to carry the card.
- Instant savings: The per-gallon discount comes off at the pump, so you see it immediately.
- In-store rewards: The 5% back on convenience store purchases and car washes adds up for regular station visitors.
- Credit building: Citi reports to all three major credit bureaus, so responsible use helps your credit profile over time.
- Fraud protection: $0 liability on unauthorized charges is included.
Cons
- Very high APR: At 33.24% variable, carrying a balance is costly.
- Closed-loop card: The card cannot be used anywhere except Exxon and Mobil stations.
- No sign-up bonus: There is no upfront cash reward for new cardholders.
- In-store cap: The 5% back on non-fuel purchases cuts off after $1,200 per year.
- No travel or purchase protections: Extended warranties, trip cancellation coverage, and similar perks are not included.
Other Factors That Affect Your Approval Odds
Your credit score opens the door, but Citi looks at your full financial picture before making a decision. These factors carry real weight in the approval process:
- Income: A steady income signals that you can manage monthly payments. Higher income strengthens your application, especially if your credit score is on the lower end of the qualifying range.
- Debt-to-income ratio: The lower your ratio, the better you look as a borrower. High existing debt relative to your income can work against you even with a decent score.
- Payment history: A clean record of on-time payments reassures Citi that you will manage the account responsibly.
- Credit utilization: Keeping your balances below 30% of your available credit shows you are not overextended.
- Recent hard inquiries: Multiple credit applications in a short window signal financial stress and can hurt your approval odds.
How to Improve Your Chances Before You Apply
A little preparation before submitting your application can make a meaningful difference. These steps are worth taking if your credit is on the borderline:
- Pull your credit reports: Check for errors at all three major bureaus and dispute anything inaccurate. Errors are more common than most people expect and can drag your score down unfairly.
- Pay down balances: Reducing your credit utilization is one of the fastest ways to lift your score before applying.
- Avoid new applications: Each hard inquiry shaves a few points off your score. Hold off on applying for other credit in the weeks before submitting this application.
- Make sure your income is current: Citi will ask for your annual net income. Have an accurate number ready and make sure it reflects your actual current earnings.
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Alternatives to the Exxon Mobil Smart Card+
The Exxon Mobil Smart Card+ delivers solid value if Exxon or Mobil is your regular station. But if you want more flexibility or better overall rewards, these alternatives are worth a look:
- Citi Custom Cash Card: Earns 5% cash back on your top spending category each billing cycle, up to $500 in purchases, with gas stations as an eligible category. It works anywhere Mastercard is accepted, carries no annual fee, and comes with an intro 0% APR offer.
- Shell Fuel Rewards Mastercard: An open-loop card that earns fuel discounts at Shell stations and can also be used for everyday purchases anywhere Mastercard is accepted.
- BP Visa Credit Card: Rewards purchases at BP and Amoco stations and functions as a general-use Visa card outside of those locations.
- Blue Cash Preferred Card from American Express: Earns 3% cash back at U.S. gas stations with no brand restriction, plus strong rewards on groceries and streaming. Best for drivers who do not stick to one station.
Is the Exxon Mobil Smart Card+ Worth It?
This card makes sense for one specific type of person: someone who fills up at Exxon or Mobil consistently and pays their balance in full every month. The instant per-gallon savings are real, the no-annual-fee structure means there is no cost to carrying it, and the in-store rewards add a little extra value if you shop inside the station.
If you pump gas at different stations depending on price or location, the closed-loop restriction will frustrate you quickly. And if there is any chance you will carry a balance, the 33.24% variable APR will wipe out your pump savings in a hurry. In either of those cases, a flat-rate cash back card or a general-use gas rewards card will put more money back in your pocket over the long run.