Fuel Prices Surge to $3.91 Per Gallon — Why $4 May Be Just the Beginning

Key Takeaways

• The nationwide average fuel cost reached $3.91 per gallon, marking the highest point since 2022, with $4 anticipated shortly
• Crude oil values have climbed over 40% since the onset of the Iran conflict
• Diesel fuel has jumped approximately 38% within 30 days, exceeding $5 per gallon for the first time since four years ago
• Fuel costs have increased more than 30% over 20 days — representing the sharpest rise recorded since at least 2000
• Israeli forces targeted an Iranian natural gas installation; Tehran responded with retaliatory strikes, maintaining oil market volatility in “fast market” conditions

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Fuel costs are accelerating rapidly as Middle Eastern hostilities drive crude oil values upward. The nationwide average reached $3.91 per gallon on Friday, representing the highest point observed since 2022, based on AAA statistics.

Patrick De Haan, petroleum analysis director at GasBuddy, indicated that $4 per gallon appears increasingly probable within the next several days.

Fuel costs have climbed more than 30% since the Iranian conflict commenced. This represents the steepest 20-day increase documented since at minimum January 2000, according to analysis from Dow Jones Market Data examining Oil Price Information Service records.

RBOB Gasoline May 26 (RB=F)

As of Thursday’s reports, motorists were spending $3.88 per gallon on average. Costs have increased by $0.98 compared to just 30 days earlier.

Oil prices currently stand more than 40% above levels seen when Iranian tensions began. The seasonal transition to costlier summer-grade fuel formulations is creating additional upward pressure on pump prices.

West Texas Intermediate crude climbed beyond $95 per barrel. The international Brent crude benchmark surpassed $103 per barrel.

Diesel Surge Threatens Trucking Industry

Diesel has experienced a roughly 38% spike over one month, crossing the $5 per gallon threshold to hit a four-year peak. This development carries significant implications since approximately 70% of merchandise in the United States travels via truck transport.

President Trump declared a temporary suspension of the Jones Act on Wednesday, permitting foreign-flagged vessels to deliver cargo to various regions of the nation. De Haan suggested this measure will produce minimal impact on fuel prices but could potentially expand supply chain alternatives.

Factors Behind the Crude Oil Rally

The most recent price surge followed Israeli military operations against a significant natural gas processing complex in southwestern Iran. Tehran launched counterstrikes targeting energy infrastructure throughout the region.

Dennis Kissler, senior vice president at BOK Financial, explained that the escalating tensions are maintaining crude markets in a “fast market” trading environment.

Market participants are monitoring the Strait of Hormuz closely, a critical petroleum shipping corridor where traffic has decelerated substantially.

RBC Capital Markets projects oil could climb beyond $128 per barrel — the threshold reached following Russia’s Ukraine invasion — should the conflict persist for an additional three to four weeks.

Should hostilities extend across several months, market analysts suggest prices could surpass the 2008 peak of $146 per barrel.

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