Iran effectively halted all maritime traffic through the Strait of Hormuz on February 28, 2026, following recent attacks by the United States and Israel. This action removed approximately 15 million barrels of oil from daily global supply, a disruption far exceeding previous energy crises, according to Lutz Kilian, director of the Federal Reserve Bank of Dallas’ Center for Energy and the Economy. American motorists are now paying over $4 for a gallon of gasoline.
The immediate economic consequences of the Strait of Hormuz closure extend globally, impacting consumers from Los Angeles to Mumbai. European farmers contend with elevated fertilizer costs, while street vendors in India struggle to secure enough cooking gas for curries and samosas. This widespread effect underscores the central role of the critical chokepoint.
The Strait of Hormuz, a narrow passage connecting the Persian Gulf with the open ocean, typically handles 20 million barrels of crude oil daily. This represents one-fifth of the world’s total production. Mr.
Kilian calculates that 5 million barrels per day could potentially be rerouted from the Persian Gulf to the Red Sea or continue to navigate the Strait. This still leaves approximately 15 million barrels, or 15% of daily global oil output, currently unavailable. This current shortfall contrasts sharply with previous energy crises.
The 1973 oil embargo, for instance, resulted in a 6% global supply reduction. A similar 6% reduction occurred after Iraq's 1990 invasion of Kuwait. The scale of the present disruption far surpasses these historical precedents, placing unique pressure on global energy markets.
However, the global economy is better prepared for such disruptions now than it was during the 1970s. Amy Myers Jaffe, a research professor at New York University’s Center for Global Affairs, noted that "We have decades of experience now dealing with these kinds of oil shocks." This accumulated knowledge informs current response strategies. Following the 1973 crisis and the 1979 Iranian revolution, nations implemented strategies to boost energy efficiency.
They also sought to lessen reliance on Middle Eastern oil, build fuel stockpiles, and pursue alternative energy sources. These efforts yielded measurable results over the subsequent decades. Oil's share of global energy supplies decreased significantly.
It fell from 46% in 1973 to 30% by 2023, according to the International Energy Agency. Despite global consumption topping 100 million barrels daily last year, up from under 60 million barrels in 1973, a larger portion of overall energy now originates from natural gas, nuclear power, and solar installations. The United States, in particular, significantly reduced its dependence on foreign oil.
America's domestic energy production, once declining in the early 1970s, experienced a rejuvenation in the 21st century due to fracking technology. By 2019, the United States had become a net petroleum exporter, fundamentally altering its energy security posture. Sam Ori, executive director of the University of Chicago’s Energy Policy Institute, stated that "The U.S. economy is much better positioned than it was in the 1970s." In the early 1970s, oil supplied roughly 20% of U.S. electricity.
This figure is now effectively zero, with a 1978 law prohibiting petroleum use in power plants, except for isolated generators in places like Alaska. Ms. Jaffe believes that "a repeat of long gasoline lines, fuel rationing, and outright fuel shortages in the U.S seems highly unlikely." This assessment reflects the structural changes made to the energy system.
The memories of President Richard Nixon asking Americans to conserve fuel and dimming the White House Christmas lights in 1973 remain a historical footnote rather than a current reality. Other countries also adopted aggressive measures after 1973. The United Kingdom shortened its work week to three days to conserve electricity during a coal strike and the energy crisis.
France mandated offices extinguish lights at night, symbolizing a collective effort towards conservation. Japan, heavily reliant on imported oil, enacted "sho-ene" laws to enforce energy efficiency across shipping, buildings, machinery, vehicles, and homes. Japan also promoted liquefied natural gas and nuclear power, though the 2011 Fukushima disaster impacted the latter’s expansion.
The International Energy Agency ranks Japan 21st globally in per-capita energy consumption, a result of its efficiency drive and extensive public transport use, compared to the United States at ninth. government established fuel economy standards in 1975. Fuel efficiency for vehicles improved from 13.1 miles per gallon for 1975 models to 27.1 mpg for 2023 models, reports the Environmental Protection Agency. The World Bank attributes much of the global economy’s reduced reliance on oil to these stricter vehicle efficiency mandates around the world.
The 1970s shocks also spurred exploration for oil outside the Middle East. This led to discoveries in Alaska’s Prudhoe Bay, the North Sea fields off the coasts of the United Kingdom and Norway, and Canada’s oil sands deposits. oil production surged from 5 million barrels daily in 2008 to 13.6 million barrels last year, with natural gas output more than doubling over the same period. Nations also began building oil stockpiles, leading to the formation of the Paris-based International Energy Agency in 1975.
Its purpose was to coordinate responses to energy shocks. Last month, the IEA's 32 member countries agreed to release 400 million barrels of oil to stabilize the market, including 172 million barrels from the U.S. Strategic Petroleum Reserve, established in 1975.
Central banks also absorbed lessons from the 1970s. During that decade, they lowered interest rates to shield the economy from oil shocks, inadvertently allowing already elevated inflation to worsen. This policy approach is now widely considered an error.
In a commentary dated February 17, 2026, Lutz Kilian of the Dallas Fed wrote that the Federal Reserve erred in cutting rates to stimulate the economy during the 1970s oil shocks. "What we can learn from the 1970s is that a well-intentioned policy of stimulating the economy by lowering interest rates has the potential of inadvertently reigniting inflation," Kilian stated. This historical perspective guides current monetary policy decisions. Despite these accumulated lessons and policy shifts, oil retains its central role in the global economy. "Oil is still king, the No. 1 fuel in the U.S. economy," Sam Ori observed.
Cars, planes, trucks, and ships derive approximately 90% of their delivered energy from petroleum. Ori emphasized that "The lifeblood of the economy – the transportation sector – is still overwhelmingly reliant on petroleum fuel, the price of which is set in a global market, and a disruption anywhere affects the price everywhere."
The current situation matters because while global systems have adapted, underlying vulnerabilities persist, especially as policy directions shift. The world’s interconnectedness means a disruption in one vital chokepoint, like the Strait of Hormuz, quickly translates into higher costs and economic pressure points across continents, affecting everyday life from commuting to food production. This event tests the resilience built over decades.
Key Takeaways: - Iran’s closure of the Strait of Hormuz has removed 15 million barrels of oil daily from global markets. - This disruption is significantly larger than the 1973 oil embargo, which saw a 6% supply reduction. - Decades of policy changes, including increased energy efficiency and diversified energy sources, have made the global economy more resilient than in the 1970s. - Despite these gains, the transportation sector remains heavily dependent on petroleum, making it vulnerable to price shocks. Looking ahead, the trajectory of global oil prices and the broader economic impact will depend heavily on the duration of the Strait of Hormuz closure and any potential diplomatic or military responses. Policymakers will likely scrutinize the effectiveness of existing strategic reserves and international energy cooperation frameworks.
Observers will also watch for any shifts in President Donald Trump’s administration’s energy policies, particularly regarding fuel efficiency standards and electric vehicle incentives, which Sam Ori suggests are moving "in the opposite direction" of insulation from future oil shocks. The resilience of global supply chains and consumer spending power will face a crucial test in the coming months.
Key Takeaways
— - Iran’s closure of the Strait of Hormuz has removed 15 million barrels of oil daily from global markets.
— - This disruption is significantly larger than the 1973 oil embargo, which saw a 6% supply reduction.
— - Decades of policy changes, including increased energy efficiency and diversified energy sources, have made the global economy more resilient than in the 1970s.
— - Despite these gains, the transportation sector remains heavily dependent on petroleum, making it vulnerable to price shocks.
Source: AP News
