Chevron CEO Warns Depleted Global Oil Buffers Risk Higher Energy Prices

Chevron has experienced fewer disruptions around its Tengiz oil operations after the United States raised the issue with Ukraine, according to Mike Wirth.
Wirth said global commercial crude inventories had been relatively high at the start of the year but had since been drawn down to low levels, leaving less capacity to absorb further supply shocks.
The Iran-related disruption has removed an estimated 6.5 million to 9 million barrels per day from the market at various points, a substantially larger shock than the supply losses associated with the Russia-Ukraine war, according to the report.
The Strait of Hormuz, where renewed tanker attacks and shipping disruptions have made commercial transit more dangerous, carries roughly 20% of the world’s seaborne crude oil, highlighting the strategic importance of the disruption.
U.S. gasoline prices had risen to an average of roughly $4.09 to $4.28 per gallon, nearly $1 higher than a year earlier, adding to the consumer impact beyond the reported diesel-price surge.
Global oil buffers that shielded markets from the Iran conflict's full impact have been depleted, Chevron CEO Mike Wirth warned, raising the risk of sharply higher energy prices in coming months. Chevron said commercial crude inventories and strategic reserves have been drawn down to dangerously low levels, leaving little cushion for further supply shocks. Brent crude has already surged above $100 per barrel, while U.S. diesel prices exceeded $6 per gallon for the first time.
The Iran-related disruption has removed 6.5 to 9 million barrels per day from global markets at various points—far larger than Russia-Ukraine war losses. The Strait of Hormuz, which carries 20% of the world's seaborne crude oil, faces renewed tanker attacks and shipping dangers. Wirth said it is now increasingly difficult to expect prices to decline quickly as supply disruptions persist.
The global oil market entered 2025 with unusually high commercial crude inventories and full strategic reserves. According to Chevron, these buffers initially absorbed the massive supply loss from the Iran conflict. But Mike Wirth said they have now been completely drawn down to low levels, eliminating the safety net that prevented steeper price spikes.
U.S. gasoline prices have risen to $4.09–$4.28 per gallon on average, nearly $1 higher than a year ago. Diesel prices breaking above $6 per gallon hit drivers and truckers especially hard. Energy analysts say without buffer supplies, every barrel removed from the market now translates directly into higher prices at the pump.
The Iran conflict has stripped 6.5 to 9 million barrels per day from global supply—substantially larger than losses from the Russia-Ukraine war. This unprecedented shock hit just as markets had thinned their reserves to minimal levels. Wirth said the timing created a perfect storm: massive supply loss with no buffer capacity remaining to absorb it.
Tanker attacks and shipping risks in the Strait of Hormuz, which carries roughly 20% of the world's seaborne crude oil, threaten to worsen disruptions further. Even if no additional barrels are lost, elevated uncertainty keeps traders bidding prices higher as an insurance premium against future shocks.
Chevron expects prices to remain elevated for the coming months as long as the Iran conflict and Ukrainian attacks on Russian refineries continue unabated. Wirth signaled no quick resolution to either supply disruption, meaning the market faces a prolonged tight-supply environment with no buffers to lean on.
Despite the near-term headwinds, Chevron is investing $7 billion to expand its Venezuelan oil operations, betting on long-term market recovery and optionality. The project will be funded with cash generated from existing Venezuelan ventures, signaling confidence in future crude demand and pricing.
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