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Gas Prices Surge 25 Cents as Supply Disruptions Hit US Markets

By Markets Desk · 2026-09-18 · 2 min read
A long, rusted steel pipeline stretching across a dry, arid desert landscape under a hazy sky.
Illustration: Tradingbird

US gasoline prices jumped 25 cents per gallon overnight in key regions. The national average now stands at $4.46. Supply losses from the Strait of Hormuz are driving the spike.

US gasoline prices rose by 25 cents per gallon overnight in several states. The national average for regular unleaded fuel reached $4.46 on Friday. This figure remains below the all-time high of $5.01 recorded in June 2022. Market analysts link the immediate price jump to ongoing geopolitical conflicts.

The increase reflects a significant loss of global oil supply. The Strait of Hormuz has been effectively closed since February. This waterway previously carried about 20% of the world’s oil supply. An attack on a Saudi pipeline further reduces available volumes. These combined factors are pressuring retail prices upward.

Supply chain disruptions reduce global output

Rystad Energy estimates that 2.6 million to 4 million barrels of oil per day are at risk. This volume typically moved through a major pipeline to the Red Sea port of Yanbu. Four million barrels per day represents 4% of global oil supply. The International Energy Agency confirms a significant reduction in available supply.

The closure of the Strait of Hormuz is the primary driver of this loss. The waterway has been blocked since the U.S. and Israel launched operations against Iran in February. Iran closed the strait in response to those attacks. The market is now pricing in a sustained shortage of crude oil.

Political pressure builds ahead of midterms

President Donald Trump dismissed the price hikes at a rally in North Carolina. He called the cost an inexpensive price to pay for the war effort. He predicted prices would fall rapidly, comparing the drop to rocket ships in reverse. His comments contrast with current polling data on voter sentiment.

A Fox News poll indicates that gas prices are a major concern for voters. The majority of respondents stated that the administration has worsened the economy. This sentiment could benefit Democrats in the November midterm elections. Control of the House and Senate will be decided by these voters.

Market data confirms rising costs

GN auto markets/energy: gasoline prices data shows a clear upward trend. Diesel prices have also reached record levels, hitting $5.85 per gallon. The simultaneous spike in both fuel types highlights broad supply constraints. Traders are adjusting forecasts for higher energy costs in the near term.

The Midwest region experienced the sharpest overnight increase. Prices jumped by the full 25 cents in several states. This regional variance reflects local supply chain bottlenecks. The national average serves as a baseline for broader economic impact.

Based on reporting by livenowfox.com, compiled by the Tradingbird desk.

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