Every fuel price comes from one of two instincts: start from what the fuel cost you, or start from what the market will pay. Cost-plus and market-based pricing are those two instincts made into strategy. Most operators lean on one and borrow from the other. This is how each works and when it fits.
Cost-plus: protect the margin
Cost-plus takes your delivered cost per gallon and adds a fixed margin. Your cost plus your set cents equals your price, full stop. The appeal is simplicity and a margin you can count on: it is built into the formula no matter what the street does. The risk is leaving money on the table when the market would happily pay more, or sitting above the market when it drops.
Market-based: chase the street
Market-based pricing sets your price to local conditions: what competitors charge and what demand supports. Done well it captures extra margin when the market runs high and keeps you competitive when it falls. The cost is effort and information. You have to watch the street and react, and react on good data rather than a glance at the sign across the road. This is the heart of how to price fuel at a gas station.
It is usually a blend
In practice many operators run a hybrid: a cost-plus floor that guards the margin, with market awareness layered on top to capture upside and stay competitive. The two are tools, and the skill is knowing which one a given site and moment calls for.
Cost-plus rules wholesale
On the wholesale side, cost-plus is everywhere. A supply contract commonly reads as a benchmark plus a set amount, for example OPIS rack plus a few cents. Both sides know the formula, the invoice reconciles cleanly, and the margin is transparent. It is the backbone of a lot of jobber deals, and it depends on knowing your true delivered cost by site, which zone pricing can move from one location to the next. FastDragon Fuel Jobber tracks that number per site, so the formula runs on real cost instead of a guess.
Questions we hear a lot
How does a cost-plus fuel price work in practice?
Start from what the load cost you, landed in the tank, and apply the same markup every time. If a load lands at $2.40 a gallon and your markup is 8 cents, you sell at $2.48. When the next load lands at $2.55, you sell at $2.63. The markup never changes; only the cost underneath it moves.
How often do market-based fuel prices change?
In competitive corridors, daily moves are normal, and some operators adjust two or three times a day when wholesale is jumping. Price feeds, survey apps, and a drive past nearby signs all feed the decision. React slowly and a falling market leaves you overpriced while a rising one squeezes your margin.
Which pricing strategy fits which kind of site?
Cost-plus suits sites with little nearby competition, captive customers, or wholesale accounts where a contract sets the formula. Market-based earns its keep at busy corners where three competitors sit within sight and a two-cent gap moves real volume. Plenty of operators run different strategies at different sites.
What benchmark do cost-plus fuel contracts use?
Most U.S. wholesale contracts key off a published rack index, usually an OPIS average for the supplying terminal. The contract spells out which index applies (gross or net, low or average), which day's posting governs each load, and the adder per gallon. Pinning those details down up front keeps invoice disputes rare.
How do I figure my true cost per gallon?
Add the rack or contract price, freight to the site, and any taxes and fees that ride on the load, then divide by the gallons. Do it per site and per load, since freight and tax differ by location. A blended company-wide average hides the sites where the formula is losing money.