US petrol prices reached $3.88 per gallon nationally this week, up from $2.98 before the war — a 30% increase in 23 days. California exceeded $5 per gallon. American households collectively pay an additional $300 million per day at the pump compared to pre-war levels. The climb has been steady and unbroken: $3.79 on 16 March, $3.84 the following day, and $3.88 now. Diesel had already crossed $5 per gallon by mid-March — a 34% rise and the highest since 2022.
The $300 million daily figure translates to roughly $109 billion annualised in additional fuel costs across the US economy. That burden falls disproportionately on lower-income households, who spend a larger share of income on transport, and on industries with high fuel intensity — trucking, agriculture, airlines, and manufacturing. Economists estimated in mid-March that fuel costs alone could push monthly inflation to 1%, the steepest single-month rise in four years. Daan Struyven at Goldman Sachs raised the probability of a US recession to 25%, driven by sustained oil price elevation from the Hormuz disruption1.
The Administration's attempts to ease prices have not kept pace with the underlying disruption. The Treasury lifted sanctions on 140 million barrels of Iranian crude already loaded on tankers — roughly 1.5 days of global consumption. The Venezuela oil authorisation and the 60-day Jones Act waiver address marginal supply and domestic distribution bottlenecks. None addresses what the IEA identified as the core problem: 8 million barrels per day removed from global supply by the Hormuz closure and Gulf production curtailments2. Until that volume is restored or replaced — a physical impossibility at current spare capacity — retail prices will continue to track Brent's ascent.
The political arithmetic is straightforward. The $200 billion war funding request already faces Republican opposition — Senator Lisa Murkowski has conditioned her vote on a White House strategy outline, Representative Lauren Boebert declared herself "a no on any war supplementals", and GOP leaders do not believe they have the votes. Rising pump prices add a second pressure point. Every week the war continues at current intensity costs American households roughly $2.1 billion in additional fuel expenditure alone, before accounting for knock-on effects on food prices, shipping costs, and consumer confidence. That is the domestic price of a conflict whose military costs the Centre for Strategic and International Studies estimated at $900 million per day .
