Diesel hits a record; c-store freight and inside sales take the hit

Diesel hit a record Friday, per AAA, up from a week earlier and well above where it stood this time last year. For a store with a truck island, that is a volume question at the canopy and a cost question for everything you stock inside.

The diesel island

Street diesel at $6 tests how fast you move your retail price against wholesale. When spot jumps, operators who hold street price to defend gallons eat the margin, and the ones who pass it through keep the margin but risk the fleet card driving to the next exit. The run has been fast: diesel has climbed since late February, before Washington's war with Iran began choking Middle East supply and Strait of Hormuz tanker traffic. Brent is trading well above its roughly $70 pre-war level. Jim Burkhard at S&P Global says the market "is not returning to calm, it is adjusting to the new normal." Price for that, not for a snapback.

Restock costs

Fuel is 15% to 30% of total food cost, per the Independent Grocers Alliance, and that bill rides in on every pallet you restock. July grocery prices rose year over year, with seafood up 7%. Perishables get hauled and restocked most often, so your cooler and fresh case carry the freight before the dry aisle does.

Foodservice traffic

The pump is also pulling cash that used to cross the counter. Regular gas has jumped since before the war, and a customer who just paid that at the canopy has less room for a $9 hot-case lunch. Foodservice is your best-margin square footage, so a thinner inside basket costs you more than a soft gallon count.

The delivery giants have already repriced. Amazon added a temporary fuel surcharge in April, and UPS, FedEx and USPS tacked on package fees. Your commissary and DSD vendors are running the same math, so expect it in their next invoice. Ajesh Kapoor of freight platform SemiCab put it plainly: diesel "has a very, very direct impact on everything that moves on pretty much any mode."

What to watch

Watch whether street diesel holds its spread over wholesale or gets compressed as operators fight for fleet traffic. The Strait of Hormuz is the swing factor on crude, which could ease if tanker flows steady and climb further if they don't. The tell at store level is your inside basket against gallons: if foodservice softens while the canopy stays busy, the record at the pump is reaching your counter.

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Sources: NPR, NPR Illinois, Fortune.