How do you choose a bulk fuel supplier when the prices are close?
Pick the one that answers five questions well: who actually supplies the fuel, will they keep you supplied, will they arrive when they said, will the paperwork agree, and what can they change after you sign.
When you buy from a bulk fuel supplier, the quote is the part everyone shows you. The rest only appears when something goes wrong: a short week at the terminal, a missed window, an invoice that does not match the delivery. For how to read the price itself, see how to compare bulk fuel quotes. Each section below takes one gap a quote leaves and gives you one question to ask a commercial fuel supplier about it.
Who actually supplies the fuel?
Start by finding out whether you are buying from a terminal-contracted supplier, a jobber, or a reseller, because that decides everything below. A jobber buys at the terminal rack and resells, so the price you see usually starts from the rack price plus the jobber’s differential. Whether that supplier sells you branded or unbranded product changes what you are committed to and what you get in a shortage; see branded vs unbranded fuel.
Ask: “Whose terminal supply contract do my gallons come from, and do you have more than one source?” A supplier lifting from a single terminal has one point of failure. One with several can reroute when a terminal runs short.
Can they keep you supplied when supply is short?
When supply tightens, suppliers can cut the volume they commit to each buyer at a terminal. That is fuel allocation. If your supplier is itself short, ask how it divides what it has between its own customers. The mechanics are in fuel allocation and terminal limits.
Ask: “If your supply is cut, how do you divide what you have between customers, and where would I sit?” Good answers name a rule, such as one based on each customer’s past volume. Vague reassurance is not a rule, so ask whether the answer is written into the agreement.
For context on how tight supply gets, the U.S. Energy Information Administration publishes a Weekly Petroleum Status Report with data on the supply and disposition of crude oil and major petroleum products. It will not tell you how your supplier behaves. Read it so you ask before a squeeze, not during one.
Will the driver arrive in your window?
A delivery window means something only if someone answers for it. A cheap load that arrives after your tank is empty costs more than the gallons it saved.
Ask: “What window do you commit to, what happens if you miss it, and how will I know the truck is late?” Listen for a number (a window in hours), a consequence (credit, priority on the next load), and a channel (a call, a text, a portal). Also ask how they handle a same-day top-up when your tank runs lower than planned.
Will the ticket and the invoice agree?
The delivery ticket is the record made when the fuel changed hands, and the invoice should be built from it. If the supplier cannot show you the ticket, you are trusting their arithmetic.
Ask: “Do you bill on net or gross gallons, and will I receive the delivery ticket with every invoice?” The difference between net and gross gallons is a real cost, so get the answer in writing. Our guide to reading a delivery ticket shows the fields, and why your invoice changed after delivery covers the usual causes of a mismatch. Before you pay anything that looks off, run the check before paying.
What can the terms change after you sign?
The price you were quoted on day one matters less than the clauses that let it move. Read the agreement for what the supplier can change without your consent.
Ask: “Which of these can you change on notice: price formula, fees, delivery minimums, payment terms, supply commitment?” Then ask how much notice, and whether you can leave without penalty if they do. Surcharges and fuel-quality terms are worth asking about too.
A scorecard you can take to the call
Score each answer 0 (no answer), 1 (vague), or 2 (specific and written). The numbers below are illustrative, not benchmarks.
| Area | Question to ask | What a 2 sounds like |
|---|---|---|
| Source | Whose terminal contract do my gallons come from? | Named terminals, more than one |
| Short supply | How do you divide supply between customers when it is short? | A written rule, with your tier |
| Windows | What window do you commit to, and what if you miss it? | A window in hours and a remedy |
| Ticket | Do I get the ticket with every invoice, and on which gallons? | Yes, and the basis is named in the contract |
| Terms | What can you change on notice? | A short list, with notice periods and an exit |
Say you are choosing between two suppliers and one scores 9 of 10 while the other scores 4 but is a cent a gallon cheaper. On a hypothetical 8,000-gallon delivery, one cent a gallon is $80. A single missed window that leaves a site dry could cost you more than that. Cheaper can still be the right call. Just know what the lower price is buying.
How Energy Connect handles it
On Energy Connect you can see the bill of lading and other delivery documents on each load, so the paperwork behind a delivery is in front of you when you check the invoice.