March 30: The Price of War, Measured in Barrels

As March ends, Brent crude oil has surged more than 50% this month alone — surpassing the previous record monthly spike set during the Gulf War in 1990, making this the largest single-month oil price increase in recorded history. The head of the International Energy Agency has called it the greatest global energy security challenge the world has ever faced.

On February 28, 2026 — the day U.S. and Israeli forces launched strikes on Iran — Brent crude oil was trading at roughly $72 per barrel. Thirty days later, as March draws to a close, it is trading above $115. The math is staggering: a monthly surge exceeding 50 percent, surpassing the previous record of 46 percent set during the Gulf War in September 1990 and making this the largest single-month oil price increase in recorded history. The International Energy Agency has described the current disruption as the largest supply shock in the history of the global oil market — worse, by its own assessment, than 1973, worse than 1979, worse than anything that has come before. The Strait of Hormuz, through which 20 percent of the world's oil ordinarily flows, has been effectively closed since early March. Nearly 200 tankers are stranded in the region. Fuel prices at American pumps have surged past $5 per gallon in some states. Economists are uttering a word not heard since the 1970s: stagflation.

The Long History of Oil and War

The modern world has experienced three previous oil shocks severe enough to reshape geopolitics, trigger global recessions, and permanently alter how nations think about energy. The first came in October 1973, when OPEC's Arab members declared an oil embargo against the United States and its allies for supporting Israel in the Yom Kippur War. The price of oil quadrupled almost overnight — from roughly $3 per barrel to nearly $12 — triggering fuel shortages, gas station lines stretching for miles, and a recession that cost millions of Americans their jobs. Unemployment climbed to 9 percent. The Federal Reserve raised interest rates to 12 percent to fight inflation. The crisis produced lasting structural change: speed limits were lowered to 55 mph, the Strategic Petroleum Reserve was created, and the Department of Energy was established. The age of cheap American oil was over.

The second shock came in 1979, in the aftermath of the Iranian Revolution that toppled the Shah and brought Ayatollah Khomeini to power. Iranian oil production collapsed by nearly 5 million barrels per day — about 7 percent of world supply at the time. Prices doubled over the following year, from $13 per barrel to nearly $35. Long gas lines returned. President Carter declared energy policy "the moral equivalent of war" and installed solar panels on the White House roof. The crisis accelerated the shift toward fuel-efficient Japanese cars, accelerated North Sea oil development, and ultimately contributed to Carter's defeat in 1980. A third, briefer shock struck in 1990 when Iraq invaded Kuwait, briefly disrupting Gulf supply and sending prices sharply higher — though that crisis resolved quickly once the Gulf War began. Each of these episodes sent shockwaves through the global economy that lasted years.

A long line of cars stretching around the block waiting at a gas station, a scene reminiscent of the 1973 oil crisis, with a price board showing dramatically elevated fuel prices

The 1973 Arab oil embargo produced gas station lines that stretched for miles across America. Fifty-three years later, the world faces what the IEA has called the largest oil supply shock in recorded history.

What distinguishes 2026 from all three previous crises is the nature of the disruption. In 1973 and 1979, the shocks were driven by embargoes and production cuts — painful, but ultimately reversible through diplomacy and rerouting. In 2026, the mechanism is a physical chokepoint: the Strait of Hormuz, a 21-mile passage that cannot be bypassed by pipeline or political negotiation. Gulf producers including Saudi Arabia, Iraq, Kuwait, and the UAE have nowhere else to send their oil. The IEA estimates that at least 10 million barrels per day of Gulf production has been cut, stranded with no exit. Analysts who have noted that "every significant spike in oil prices has been followed, in some form, by a global recession" are watching the economic data with gathering alarm. For now, the tankers wait. The price climbs. And the world, as it has three times before in living memory, is learning again just how much of everything depends on what moves through a narrow strip of water in the Persian Gulf.