TLDR
- American gasoline prices surpassed $4 per gallon on Tuesday, reaching a national average of $4.018 – the first time since August 2022.
- Over the last month, crude oil benchmarks have jumped approximately 50% following the outbreak of the US-Iran conflict.
- Emergency measures from the Trump administration, including ethanol waivers and Jones Act suspensions, have failed to reduce costs at the pump.
- Diesel prices climbed to $5.45 per gallon – representing an unprecedented monthly increase.
- Goldman Sachs has revised its April Brent projection to $115, while some market watchers suggest prices could reach $200 if hostilities extend into June.
American motorists passed a significant threshold this week as fuel prices climbed above $4 per gallon for the first time in nearly three years. The nationwide average reached $4.018 per gallon on Tuesday, representing the steepest monthly price increase ever recorded, based on figures from analytics provider GasBuddy.
This dramatic escalation stems directly from the current US-Iran military confrontation, which has now entered its fifth week. Throughout the past 30 days, both Brent crude and West Texas Intermediate benchmarks have experienced approximately 50% increases, with Brent hovering around $107.80 per barrel while WTI trades near $102 per barrel.
Compared to prices from twelve months earlier, the typical cost at filling stations has risen by roughly $1 per gallon. The majority of this increase has materialized since military operations commenced.
Commercial trucking operations are experiencing even more severe financial strain. On Tuesday, the nationwide diesel average reached $5.45 per gallon – another record monthly surge according to GasBuddy tracking.
GAS PRICES SURGE PAST $4 AMID WAR
US gasoline has topped $4 per gallon for the first time since 2022, rising over $1 in a month as the Iran war disrupts global oil supply. Crude prices have climbed above $100, pushing fuel costs sharply higher worldwide.
The spike is fueling…
— *Walter Bloomberg (@DeItaone) March 31, 2026
The Trump administration attempted to provide relief on March 25 by issuing an emergency authorization that loosened federal regulations on E15 gasoline ethanol content, which typically offers lower-cost fuel alternatives. Additionally, the White House enacted a 60-day temporary suspension of Jones Act maritime transport regulations, which ordinarily increase domestic shipping expenses.
Despite these interventions, neither policy has produced noticeable price reductions for consumers.
The Strait of Hormuz Problem
Even with a potential near-term resolution to hostilities, oil prices may not decline rapidly. The critical issue centers on the Strait of Hormuz, a waterway that previously facilitated approximately 20% of worldwide oil and natural gas transportation before the current conflict erupted.
According to administration sources cited in a Wall Street Journal article, President Trump has indicated to advisors his readiness to scale back military operations regardless of whether the Strait remains substantially blocked. Extended closure of this vital shipping lane could sustain oil prices in triple-digit territory.
The consequences are already spreading throughout Asian markets. The majority of petroleum that traversed the Strait was destined for Asian refining facilities. Bangladesh has closed its universities temporarily, while Pakistan and the Philippines have implemented reduced working schedules to control energy consumption.
A press briefing featuring Defense Secretary Pete Hegseth and Chairman of the Joint Chiefs of Staff Gen. Dan Caine was set for Tuesday morning at 8 a.m. Eastern time.
What Analysts Are Saying
Goldman Sachs has elevated its April Brent crude projection from $85 to $115 per barrel, attributing the revision to extended disruptions that maintain elevated risk premiums surrounding the Strait of Hormuz situation. High-level Saudi Arabian officials have developed scenarios showing Brent potentially hitting $180 should the conflict persist through April. Analysts from Macquarie have projected that Brent could surpass $200 if military operations continue into June.
Specialty fuel grades and aviation fuel costs are experiencing similar upward pressure. While the burden on everyday consumers remains significant, it pales in comparison to the diesel price shock affecting commercial transportation sectors.
Brent crude futures were most recently quoted near $107.61, showing modest gains during trading.
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