Costco staples – A new check of 45 Costco items tracked on shelves in Wisconsin finds grocery prices largely flat from January to May, even as fuel markets roil after the US and Israel’s war with Iran. The data shows some increases in coffee beans and bacon, a value shift in b
For months, US households have been waiting for the “other shoe” to drop—watching gas prices hammer their budgets while the broader cost story kept threatening to widen.
Starting late February. after the US and Israel’s war with Iran sent the oil market reeling. transportation costs rose for many businesses and some supplies. including the fertilizer farmers need to grow produce. were disrupted. Yet when the focus turns to what shoppers actually see on shelves. one major warehouse chain—Costco—has looked unusually steady.
This year. the reporting effort has involved visiting a Costco warehouse in Wisconsin every few weeks to document on-shelf prices of 45 commonly purchased items across several categories. The choice of Costco matters in the way consumers understand pricing: the warehouse club is known for adding minimal markup to its goods. and its operating model runs much of its own supply chain operations. reducing the same kind of third-party transportation expenses that other retailers carry. That leaves fuel costs with fewer hiding places.
From January to May, the overall picture for the 45 items was essentially flat. Of the items tracked, seven showed price increases between January and May, while five saw price reductions. The remainder stayed within the kind of day-to-day movement that doesn’t look like a dramatic fuel-driven surge.
The most visible swings weren’t in the aisles tied to gasoline. Coffee beans and beef, instead, have faced significant supply pressures—pressures that are described as having relatively less to do with fuel.
A two-pound bag of Starbucks coffee beans rose from $16.80 in January to $19.99 in April, a 19% increase. Organic ground beef took a different path. Four-pound packs that sold in March for $25.99 disappeared from the shelves of the local Costco. replaced in May by similar packs of conventional beef costing $24.99. It isn’t presented as a straightforward price hike, but as a notable value substitution.
Bacon also moved gradually. Each three-pound pack cost about $0.50 more each month from February to May, totaling a rise of $1.50 over the period.
Then came the surprise for shoppers who have watched motor oil make headlines over impending shortages. Motor oil was in stock and consistently priced throughout the visits.
Fresh produce showed smaller fluctuations. Berries came down in price as they came into season.
The difficulty for shoppers is that the grocery reality doesn’t match the noise coming from energy markets. Crude oil. jet fuel. and diesel costs have all been under pressure. with companies around the globe paying top dollar to keep businesses moving. At the same time. everyday life feels more expensive—gas prices directly squeeze household budgets. flights and package shipments cost more. energy prices have driven an unsettling uptick in inflation measures. and US consumer sentiment has hit all-time lows.
That gap between what markets signal and what Costco sells creates the question that hangs over every checkout line: are fuel-driven prices temporary, or are they being delayed?
A crucial piece of the puzzle arrived on Thursday, when Walmart said it had absorbed about $175 million in fuel costs rather than immediately passing them along to shoppers. Walmart also warned it would likely have to raise prices if things don’t change.
The logic is stark: Costco and Walmart share a lot of DNA when it comes to pricing approaches, and Walmart’s move makes the Costco stability feel less like a mystery and more like a choice—at least for now.
In Walmart’s earnings call, financial chief John David Rainey said, “We’re confident this was the right approach to reinforce customer trust and support share gains over the long term.”
Costco, for its part, does not report its financials until Thursday, meaning the company’s official stance is still pending.
Still, what stands out from the past week of shelf checks is the pattern shoppers are already starting to notice: some retailers may be willing to take a temporary hit to keep customers satisfied, but they aren’t likely to keep covering the high cost of fuel indefinitely.
Wherever fuel markets go next, the next test will be what shows up in the same aisles—whether the current steadiness holds, or whether the price tags finally catch up.
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