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Costco Q3 Gas Volumes Hit Records, Boosting Member Loyalty and Traffic

May 29, 2026, 9:00 PM EDT2 sourcesAI-analyzed

Why it may matterVerify against the original reporting

Gas-driven traffic provides a near-term lift to same-store sales and warehouse spend; margin impact favorable if fuel costs are offset by membership loyalty and cross-store purchases.

AI summary

What happened, with direct paths to the underlying reporting

Costco’s third-quarter results benefited from a surge in gas demand as shoppers sought value amid macro uncertainty and higher energy costs. Management flagged record gas volumes and peak weeks, signaling stronger member loyalty and cross-store spending as fuel traffic translates into warehouse sales. Elevated gas prices and a widened price gap versus peers could sustain near-term momentum.

Costco Q3 gas volumes hit record highs amid demand for low-priced fuel.
Macro uncertainty drew members to Costco gas stations, boosting sales momentum.
Final five weeks of the quarter were among Costco's top five volume weeks ever.
National regular gasoline averaged $4.39/gal, up ~38% YoY to $3.17.
CFO: Gas volumes widened Costco’s price gap versus higher-cost stations.

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