On April 28, 2026, Iran closed the Strait of Hormuz, a waterway carrying 20% of the world's oil, two months after a US attack on Iranian leadership. The blockade threatens a global economic shock, reminiscent of the 1970s oil crises, with severe implications for Gulf fuel prices and renewable energy adoption.
On April 28, 2026, Iran closed the Strait of Hormuz, the strategic waterway through which 20% of the world’s oil passes. The move came two months after a surprise US attack on Iranian leadership on February 28, 2026, escalating tensions into a full-blown energy crisis. The blockade halts nearly 20 million barrels per day of oil shipments, threatening to disrupt global supply chains and send fuel prices soaring.
What happened? The immediate impact of the Hormuz closure
According to a report by CleanTechnica, the US attack triggered a series of retaliatory measures from Iran, culminating in the closure of the Strait of Hormuz. The strait connects the Persian Gulf to the Gulf of Oman and is a vital artery for oil exports from Saudi Arabia, the UAE, Kuwait, Qatar, Iran, and Iraq. Its closure effectively stops the flow of roughly one-fifth of global oil consumption.
How does this crisis compare to the 1970s oil shocks?
In 1973, the Arab oil embargo quadrupled prices, and in 1979, the Iranian Revolution caused severe shortages. The 2026 crisis may be more severe because it cuts off supply while global demand remains high. Strategic reserves are limited, and renewable alternatives are not yet mature enough to fill the gap. The lessons from the past are clear: dependence on Gulf oil is a strategic risk.
What does this mean for fuel prices in the Gulf?
Although Gulf countries are oil producers, their exports pass through the Strait of Hormuz. Saudi Arabia and the UAE have alternative pipelines, but their capacity is limited. Initial estimates suggest gasoline and diesel prices in Saudi Arabia could rise by 30-50% in the coming weeks. For example, if current prices average SAR 2.10 per liter, a 40% increase would push them to SAR 2.94 per liter.
Could the crisis accelerate the shift to clean energy?
History shows that oil crises spur investment in alternatives. After 1973, solar energy research doubled. However, in 2026, the outcome may differ: countries might turn to coal and shale gas as quick fixes, undermining climate goals. The crisis highlights the need for energy diversification, but the immediate response may prioritize short-term security over long-term sustainability.
Key facts at a glance
- Date of US attack: February 28, 2026
- Date of Hormuz closure: April 28, 2026
- Percentage of global oil through Hormuz: 20%
- Oil volume halted daily: 20 million barrels
- Expected fuel price increase in Saudi Arabia: 30-50%
- Previous comparable crises: 2 (1973 and 1979)
FAQ
Why did Iran close the Strait of Hormuz?
Iran closed the strait in retaliation for a US attack on its leadership on February 28, 2026. The attack and subsequent escalation led to the blockade of this vital waterway.
How long will the Hormuz blockade last?
There are no precise estimates yet, but experts expect the closure to last weeks or months, depending on negotiations between the US and Iran.
How will the closure affect fuel prices in Saudi Arabia?
Gasoline and diesel prices in Saudi Arabia are expected to rise by 30-50% because the kingdom’s oil exports pass through the strait, despite limited-capacity alternative pipelines.
Can renewable energy replace the lost oil supply?
No. While renewables like solar and wind have grown, they cannot compensate for a sudden loss of 20 million barrels per day due to storage and grid limitations. The crisis may slow climate progress if countries revert to fossil fuels.
Frequently Asked Questions
Why did Iran close the Strait of Hormuz?
Iran closed the strait in retaliation for a US attack on its leadership on February 28, 2026. The attack and subsequent escalation led to the blockade of this vital waterway.
How long will the Hormuz blockade last?
There are no precise estimates yet, but experts expect the closure to last weeks or months, depending on negotiations between the US and Iran.
How will the closure affect fuel prices in Saudi Arabia?
Gasoline and diesel prices in Saudi Arabia are expected to rise by 30-50% because the kingdom's oil exports pass through the strait, despite limited-capacity alternative pipelines.
Can renewable energy replace the lost oil supply?
No. While renewables like solar and wind have grown, they cannot compensate for a sudden loss of 20 million barrels per day due to storage and grid limitations. The crisis may slow climate progress if countries revert to fossil fuels.
Sources
- CleanTechnica — Echoes From The Past: What The “Twin Oil Crises” From The 1970s Teach Us About The Coming Impacts Of Hormuz’s Blockade.
