Gas prices fall below $4 a gallon for first time since July as oil markets bet on war's end

American drivers paid less than $4 a gallon for regular gasoline on Tuesday for the first time since July 20, as a convergence of seasonal forces and rapidly shifting geopolitical expectations pushed pump prices down sharply from their recent peak.

AAA recorded the national average at $3.9788 per gallon on Tuesday, down from $4.1493 on Election Day just one week earlier, according to EconoTimes. GasBuddy's separate tracking showed its own average at $3.96 on Monday — the first sub-$4 reading in that series since early August. Either way, the direction is clear: prices have fallen roughly 17 cents in a week and nearly 40 cents from a month ago, according to GasBuddy data compiled from more than 150,000 stations.

Gasoline prices fell in every state over the last week, while diesel declined in nearly every state, and the national average dropped below $4 per gallon for the first time since early August.— Patrick De Haan, Head of Petroleum Analysis, GasBuddy

De Haan predicts prices will continue easing into the Thanksgiving holiday, according to CBS News.

Three forces are converging to push prices lower. The first is purely seasonal: federal rules require gas stations to sell a summer-blend fuel — designed to limit evaporation — from June 1 through September 15. After that window closes, stations can switch to cheaper winter blends, and demand falls as road trips and vacations taper off. AAA says gas prices typically drop 10 to 30 cents per gallon during winter months for exactly this reason, according to CBS News.

The second force is a dramatic slide in crude oil prices. Brent crude — the global benchmark — fell roughly 16% last week, its steepest weekly decline since the start of the Covid pandemic in April 2020, according to GasBuddy. Oil slid another 5% on Monday, briefly falling below $90 a barrel, according to NBC News.

The third factor is geopolitical: markets are pricing in a growing likelihood that the U.S.-Iran war, which began on February 28 and sent prices surging more than 30% above pre-war levels, may be moving toward a resolution. In remarks to NBC News last week, President Trump said he had no plans to strike Iran, and on Monday he declared that "Iran militarily is effectively over" and expressed a "good chance" the war "could get ended." The U.S. is hosting trilateral talks between Russia and Ukraine in Abu Dhabi on Tuesday, the first such negotiations since February, according to NBC News.

Many will assume the election had something to do with it, but that's a myth. Gas prices have fallen in the 30 days leading up to the election every year since 2006 except 2010, and it's typically seasonal: refiners finish maintenance and ramp up output just as demand fades with cooler weather.— Patrick De Haan, Head of Petroleum Analysis, GasBuddy

Still, De Haan acknowledged that the election's outcome 'may send a message to Washington to sharpen its focus on affordability.' The midterm results also appeared to move markets: after Democratic candidates turned in strong vote totals, traders moved quickly to price in the likelihood that a Democratic-controlled Congress would rein in some of the administration's most economically disruptive policies, the Iran war among them, according to NBC News.

Given the Democrats' control of Congress, there will likely be more scrutiny over the war, while funding it could become more difficult.— ING Commodities Strategists

Vice President JD Vance appeared to validate that market read. In a social media post Wednesday morning, Vance pointed directly to the conflict as the cause of the loss, writing that "any honest conversation about where we go from here must start there," according to NBC News. Traders took Vance's acknowledgment of the war's unpopularity as further evidence that oil prices could stay lower.

The relief, while real, is partial. Gas prices remain more than 30% above where they stood when the Iran war started on February 28, and about 40% above the start of the year, according to NBC News. Yahoo Finance reported prices are roughly 19% above the seasonal average. And diesel — the fuel that moves groceries, goods, and holiday shipments across the country — remains well above $6 a gallon. Diesel stood at $6.186 per gallon as of Tuesday, according to GasBuddy, down from $6.28 on Election Day but still more than 70% above its level at the start of the year, according to NBC News. Russia has historically been one of the world's largest diesel exporters, and continued Ukrainian strikes on Russian energy infrastructure have kept that market especially tight.

Analysts warn that the oil market's rapid selloff may have moved too fast. ING's commodities team argued in a note cited by NBC News that the pace and scale of the oil market's decline appeared excessive. Citigroup analysts identified a particular near-term risk in the stretch before January 3, when the new Democratic Congress is seated — a "lame duck" interval in which the White House could act on foreign policy with less political pushback. According to NBC News, Citi's analysts wrote that "this period could see either accelerated dealmaking or renewed escalation, meaning markets could remain choppy even if the longer-term direction points to eventual diplomatic resolution."

Tanker incidents reported near the Strait of Hormuz over the weekend, with no ships reportedly crossing on Sunday, illustrate how quickly the situation could shift, according to GasBuddy. Secretary of State Rubio has ruled out an imminent diplomatic breakthrough, and the U.S. strategic petroleum reserve currently holds the smallest amount of crude oil since 1982, according to NBC News — leaving little cushion if prices spike again.

Why it matters — Gas prices affect every household budget directly, and with diesel still above $6 a gallon, the cost of moving food and goods remains elevated — meaning grocery and retail prices may stay high even as the pump offers some relief.

Sources differ on Whether the election drove gas prices lower: Seasonal factors — winter blends and lower demand — are the primary driver, not the election; prices have fallen pre-election every year since 2006 except 2010 (gasbuddy.com) vs Election outcome raised expectations of reduced war funding and more scrutiny of the Iran conflict, contributing to the oil price drop (nbcnews.com) vs Election-related hopes for a U.S.-Iran deal helped push global oil costs lower (cbsnews.com)

Reported by nbcnews.com, cbsnews.com, econotimes.com, gasbuddy.com, ycharts.com, finance.yahoo.com