The national average petrol price in the United States dropped below $4 a gallon for the first time since July, according to data from AAA. The average fell to $3.97 a gallon on Tuesday, down about 3 cents from Monday's report. Over the past week, prices have declined roughly 17 cents per gallon, and they are down approximately 39 cents compared with a month ago, AAA data showed.
The decline reflects a seasonal shift as refiners have switched to winter blends of gasoline, which typically cost slightly less to produce than the summer blends that were in use through mid-September. AAA noted that winter weather patterns, which typically see fewer drivers on the road, can reduce fuel demand and contribute to falling prices. The association expects gas prices may drop a further 10 to 30 cents per gallon during the winter months.
Prices have remained volatile throughout 2026, shaped by geopolitical disruptions in the Middle East. A war involving Iran disrupted the flow of oil through the Strait of Hormuz, constraining supplies available to refiners. This disruption pushed prices to a peak of $4.50 a gallon on May 11, 2026. As summer turned to fall, renewed Middle East tensions drove prices to $4.47 a gallon on September 21, 2026, before the recent decline brought them to their lowest level since July 6, when prices reached $3.77 a gallon, according to data from the Energy Information Administration.
The Bureau of Labor Statistics reported that in October, gasoline prices rose just 1% for the month, a significant slowdown from September's 9.1% monthly increase and August's 3.9% jump. For savers and borrowers, cheaper petrol means lower transportation costs and potentially reduced pressure on overall household budgets, though this benefit depends on whether prices remain stable or resume climbing.