Oil Rises Above $90 as U.S. And Iran Exchange Strikes
A resumption of direct U.S.-Iran military exchanges after a one-month pause is now transmitting directly into fuel costs that American consumers were already paying above $4 per gallon at the pump.
Brent crude oil futures rose 2.20 percent to $90.29 per barrel and West Texas Intermediate climbed 2.25 percent to $85.65 per barrel by approximately 9:20 a.m. ET on Monday, August 31, 2026, according to market data reported by the New York Post. The moves came within hours of the U.S. Military launching strikes on Iran's Larak Island on Sunday.
The U.S. Strikes on Larak Island were carried out after Iran's Islamic Revolutionary Guard Corps were reported to be preparing a new wave of activity in the area, according to the New York Post report published August 31, 2026. Iran subsequently retaliated against U.S. Forces, making this the first direct exchange of strikes between the two countries in approximately one month.
Larak Island sits near the Strait of Hormuz, a waterway through which, according to the U.S. Energy Information Administration's 2023 annual data, approximately 20 percent of global petroleum liquids and liquefied natural gas pass. Military activity near or at that chokepoint has historically produced immediate pricing responses in global crude markets.
The national average gasoline price remained above $4.00 per gallon as of August 31, 2026, according to AAA price tracking data cited in the New York Post report. AAA publishes daily national and state-level averages drawn from a survey of retail fuel stations across the country. A sustained price above $4.00 per gallon is a threshold that has, in prior periods such as 2022, prompted congressional hearings and White House responses on energy policy.
The direct fiscal impact on American households depends on consumption volume. The U.S. Energy Information Administration reported in its 2023 data that the average American household spent approximately $3,000 annually on gasoline. A sustained increase of roughly 10 percent above baseline levels, as reflected in current prices compared to the prior-year national average of approximately $3.50 per gallon in August 2025 per EIA monthly data, would translate to an added annual cost of approximately $300 per household.
The policy response in Congress to elevated fuel prices has historically split along familiar lines. During the 2022 price spike, the House passed the Consumer Fuel Price Gouging Prevention Act (H.R. 7688) on a vote of 217 to 207, largely along party lines, per the congressional record. The Senate did not advance the bill. Republican members in both chambers generally opposed price-control mechanisms and instead called for expanded domestic production. That split is likely to resurface if prices remain above $4.00 per gallon heading into the November 2026 midterm elections.
On the executive side, the Biden administration released 180 million barrels from the Strategic Petroleum Reserve between March and July 2022 in response to that year's price surge, according to the Department of Energy. The current administration has not announced any SPR action as of August 31, 2026. The SPR's current inventory level, which the Department of Energy publishes weekly, would determine the practical ceiling of any such response.
The Strait of Hormuz's role as a price-sensitive chokepoint is well documented in federal energy planning. The EIA has published formal analyses identifying it as the world's most important oil transit point. Any closure or sustained disruption, even partial, of traffic through the strait would affect supply chains for U.S. Allies in Europe and Asia, which in turn affects global benchmark prices that feed into domestic retail costs.
The relationship between U.S.-Iran military exchanges and oil prices has a precedent. In January 2020, following the U.S. Strike that killed Iranian General Qasem Soleimani, Brent crude rose approximately 4 percent before retreating within days as markets assessed that full-scale conflict was unlikely, per contemporaneous EIA short-term energy outlook data. The current 2.20 percent Brent move is smaller in percentage terms than that 2020 spike, though prices are starting from a higher base.
Several key facts remain unknown as of publication. The Defense Department has not released a formal statement, as of August 31, 2026, detailing the specific authorization or legal basis for the Larak Island strikes. The applicable statutory authority, whether the 2001 Authorization for Use of Military Force, the 2002 AUMF, or an Article II claim, has not been publicly confirmed. A War Powers Resolution notification to Congress, required within 48 hours of introducing U.S. Forces into hostilities under 50 U.S.C. Section 1543, would be the public document that addresses this. As of publication time, no such notification has been confirmed as transmitted to congressional leadership. That filing, if submitted, would be publicly available through the Senate Foreign Relations Committee and House Foreign Affairs Committee records.