Bunker Procurement: Control Every Stem From Enquiry to Delivery
Run bunker procurement with structured enquiries, written stem confirmations and delivery checks so quantity and quality issues are caught early.
This is for bunker buyers, technical and commercial managers and operators at shipowners and charterers. Bunkers are often the largest voyage cost, and a short delivery or off-spec fuel can cost far more than any price you saved. Many problems start before the barge arrives: an unclear enquiry, a stem confirmed on a call, or a vessel that was never briefed. This post shows how to structure procurement from enquiry to delivery so you compare suppliers fairly and have the evidence ready if something goes wrong.
The operator needs fuel at a busy port and messages three suppliers with slightly different requests. Quotes come back in different formats, one with barging included, one without. The cheapest is chosen in a hurry and the stem is agreed on a call, with a short email that leaves out the grade specification and sampling method.
At delivery, the chief engineer suspects the barge has delivered less than the docket shows but has not been told what to check. Samples are drawn without witnessing. Weeks later, test results show a parameter out of specification, and the claim struggles because the stem, the delivery note and the sampling record do not line up.
A dry bulk charterer in Mumbai bought bunkers through quick messages to suppliers and occasional brokers. Quantity complaints were frequent, and claims rarely succeeded. The commercial manager introduced a standard enquiry, a written stem template and a pre-delivery checklist sent to each chief engineer. Quotes became comparable, and the buyer began noting past supplier performance in a simple log. On a later stem, the chief engineer, following the checklist, found a gap between barge and vessel figures, issued a protest and kept witnessed samples. The supplier accepted an adjustment after reviewing the records. Over time, the team shifted volumes towards suppliers with clean delivery records.
What is a bunker stem?
A stem is the confirmed order for a bunker delivery, setting out the vessel, port, grade, quantity, price, delivery window and terms. It should be confirmed in writing so both buyer and supplier work from the same terms.
What should a bunker enquiry include?
Vessel name and IMO number, port and delivery window, grade and specification standard, quantity with minimum and maximum, delivery method, agent details, and which costs the quote should include, such as barging and port charges.
How can we reduce bunker quantity disputes?
Brief the vessel, take soundings before and after delivery, check barge tanks and meters where possible, witness samples, and issue a note of protest promptly if figures differ. Keep all records together for any claim.
Who pays for bunkers under a time charter?
Usually charterers buy and pay for bunkers during the charter, with quantities and prices on delivery and redelivery settled in the hire statement. Check the bunker clause in your charter party for the exact terms.
Want this fixed in your business?
Send the workflow. You get a scope and a fixed price within two working days — or a straight answer that it isn't a fit.