Prediction market traders are placing strong odds on a fresh record for pump prices, with the US gas price forecast for 2026 now pointing well above the year’s current peak, as crude oil climbs past $103 a barrel and tensions over a critical global shipping route remain unresolved.
Prices at American petrol stations reached $4.56 per gallon on 21 May, according to AAA’s national average. That peak may not stand for long, if traders on prediction market platform Kalshi are right. They currently place a 71% probability that the national average will surpass $4.60 per gallon before the year is out.
The betting does not stop there. Kalshi traders put 57% odds on prices topping $4.80 a gallon, and just over a 40% chance they cross the $5.00 mark. The last time American drivers paid that much at the pump was June 2022, when prices hit just over $5 per gallon. On Kalshi, contracts ask traders whether prices will cross various price points, with outcomes resolved using AAA’s data.
Oil market rattled by Strait of Hormuz crisis
The immediate driver of higher crude prices is the ongoing uncertainty surrounding the Strait of Hormuz, the narrow waterway through which a large share of the world’s oil supply passes. On Monday, West Texas Intermediate crude futures rose 3.5% to more than $103 per barrel.
The roots of the current crisis run deep. According to Wikipedia, tensions between the United States, Iran and Israel escalated in the lead-up to 2026, stemming from failed nuclear negotiations in Geneva and a prior 12-day air conflict in 2025. The Strait, already a pressure point in global energy markets, became the focal point of the standoff.
The Congressional Research Service reports that periodic Iranian attacks on shipping and retaliatory US strikes against Iran severely disrupted traffic through the Strait for most of the five months leading up to early August 2026. The disruption fed directly into crude supply fears and kept upward pressure on oil prices throughout that period.
There have been steps toward de-escalation. An initial ceasefire, which included Israel, was agreed on 7–8 April, according to Britannica. Then, on 17 June 2026, the United States and Iran signed a memorandum of understanding committing both countries to terminating military operations, the Congressional Research Service notes. Even so, oil markets remain on edge, and the pump price trajectory reflects that lingering uncertainty.
US gas price forecast 2026 carries political weight too
Beyond the economics, the US gas price forecast for 2026 carries a direct political dimension. Kalshi traders currently place 50-50 odds that petrol prices will still be above $4.25 per gallon on election day, 3 November. That level, if sustained, would keep fuel costs squarely in the political conversation heading into polling day.
For American households, the maths is straightforward and uncomfortable. If the Kalshi consensus proves correct, drivers could be paying well above the current peak for months to come, with prices at a level not seen since the record-setting surge of June 2022.
The question of whether the 17 June MOU translates into a lasting reduction in Strait of Hormuz disruptions, and a corresponding easing of crude prices, will be central to whether the current 71% probability of new gas price highs holds or starts to fade in the weeks ahead.
