In 1979, Iran’s revolution removed 5 million barrels per day from global markets. Oil nearly tripled from $14.85 to $39.50. Inflation hit 14.6%. Then Paul Volcker raised interest rates to 20% and broke the back of inflation — and nearly broke the economy in the process.
The first oil shock should have been a warning. Instead, it was treated as an anomaly. By 1978, the world had absorbed the quadrupling of oil prices and adjusted — or so it believed. The United States had created the Strategic Petroleum Reserve. The International Energy Agency was coordinating Western energy policy. Demand was still growing, but the panic of 1973 seemed like a historical event, not a preview of something worse.
Then Iran collapsed. In January 1979, Shah Mohammad Reza Pahlavi fled the country after months of revolutionary protests. Iran had been producing 5.5 million barrels per day — roughly 10% of global supply. Under the new Islamic Republic, production would plummet to less than 1 million barrels per day. And unlike the 1973 embargo, which was a deliberate policy decision that could be reversed, the Iranian revolution was a structural supply loss. The barrels were not being withheld. They simply no longer existed.
Oil had been sitting at $14.85 for fourteen consecutive months. By December 1979, it reached $32.50. By April 1980, it would hit $39.50 — a level that, adjusted for inflation, remains one of the highest prices in the commodity’s history. The second oil shock had arrived, and it would prove even more consequential than the first.
The chart shows the anatomy of a supply shock in slow motion. For fourteen months — January 1978 through February 1979 — oil sat at exactly $14.85. Then the staircase began. Each step represented a new crisis, a new loss of supply, a new wave of panic buying.
February 1979: $15.85 — Iran’s production collapses. May: $18.10 — spot markets in frenzy. July: $21.75 — OPEC official price chasing the spot market. August: $26.50 — hoarding begins as buyers scramble to build inventories. September: $28.50. November: $31.00. December: $32.50. In ten months, oil had more than doubled.
Then Iraq invaded Iran in September 1980, taking another 3.5 million barrels per day off the market. Oil surged to $39.50 by April — a price that seemed unthinkable just two years earlier. From the pre-embargo $3.56 of 1972, oil had risen more than tenfold in eight years. The entire cost structure of the global economy had been repriced.
In August 1979, Paul Volcker became chairman of the Federal Reserve. He inherited the worst monetary policy disaster in modern American history. Inflation was running at 11.8% and accelerating. The previous chairman, G. William Miller, had raised rates cautiously — from 6.7% to 10% over eighteen months — while inflation ran away from him. By the time Volcker took over, the bond market had lost faith in the Fed’s willingness to fight.
Volcker’s approach was radical. On October 6, 1979, he announced the “Saturday Night Special” — a fundamental change in monetary operating procedure. Instead of targeting the Fed Funds rate, the Fed would target the money supply directly. Interest rates would go wherever the market took them. They went to the moon.
The Fed Funds rate, which had been at 11.4% in September, spiked to 13.8% in October. By March 1980, it hit 17.2%. By April, 17.6%. The prime rate — the rate banks charged their best customers — reached 21.5%. Mortgage rates hit 18%. The economy entered recession in January 1980.
Then something extraordinary happened. Volcker briefly relented. Under intense political pressure, the Fed eased rates in the summer of 1980 — the Fed Funds rate dropped to 9% by July. But inflation was still running at 12.9%, and the pause only convinced markets that the Fed lacked the will to finish the job. Volcker responded by raising rates even higher. By June 1981, the Fed Funds rate hit 19.1% — the highest in American history. The overnight rate exceeded the annual inflation rate by seven percentage points.
| Year | Oil Price | Oil YoY | CPI YoY | Fed Funds | Real Rate |
|---|---|---|---|---|---|
| 1978 | $14.85 | — | 7.6% | 7.9% | +0.3% |
| 1979 | $25.10 | +69% | 11.3% | 11.2% | −0.1% |
| 1980 | $37.42 | +49% | 13.5% | 13.4% | −0.1% |
| 1981 | $36.83 | −2% | 10.3% | 16.4% | +6.1% |
The table captures the arc of the second shock. Oil rose 69% in 1979 and another 49% in 1980, driving CPI inflation from 7.6% to 13.5%. For two years, real interest rates were effectively zero or negative — the Fed was running as fast as it could and still falling behind inflation.
Then 1981 tells the Volcker story. Oil barely moved, but the Fed Funds rate hit 16.4% against 10.3% inflation — a real rate of +6.1%. That kind of monetary tightening had never been attempted in peacetime. The cost was immense: GDP fell 1.8% in the 1980 recession, recovered briefly, then fell another 2.7% in the 1981-82 recession. Unemployment peaked at 10.8% in December 1982 — the highest since the Great Depression. The Rust Belt lost manufacturing jobs it would never recover.
The double-dip recession of 1980-82 was the price of the 1970s. A decade of accommodation — of letting inflation run, of treating each oil shock as temporary, of cutting rates before the job was done — had embedded inflation expectations so deeply that nothing short of a depression-level downturn could dislodge them. The Fed’s mistake in 1974 was not raising rates. Its mistake was cutting them too soon. Volcker was determined not to repeat that error.
Conservation finally happened. American oil consumption peaked in 1978 at 18.8 million barrels per day and would not reach that level again until 1998 — twenty years later. Detroit began building fuel-efficient cars for the first time, though it would take Japanese automakers to show them how. Corporate Average Fuel Economy (CAFE) standards, passed in 1975 but only now biting, forced the average new car from 13 miles per gallon to 24 by 1985.
Non-OPEC supply surged. The North Sea, which had produced negligible amounts in 1975, was pumping 3.5 million barrels per day by 1981. Alaska’s North Slope was at 1.6 million. Mexico’s production doubled. At $35 per barrel, every marginal field in the world was profitable. OPEC’s share of global production began a long decline.
The developing world was devastated. Countries that had borrowed heavily to pay for expensive oil — Brazil, Mexico, Argentina, Poland — found their debts exploding as Volcker’s rate hikes pushed up the dollar and increased the cost of dollar-denominated borrowing. The Latin American debt crisis of 1982 was a direct consequence of the oil shocks and the monetary response to them. Countries that owed money in dollars, earned revenue in commodities, and imported oil in a world of $35 crude and 19% interest rates were structurally bankrupt.
OPEC had overplayed its hand. At $39.50 per barrel, oil was expensive enough to fund alternatives, efficient enough to motivate conservation, and scarce enough to attract massive investment in non-OPEC production. The cartel had maximized short-term revenue at the cost of long-term market share. The seeds of the great oil crash of 1985-86 were planted in the $39 peak of 1980.
The second oil shock proved that the first was not an anomaly. The global economy had a structural vulnerability — dependence on oil from politically unstable regions — and that vulnerability could be exploited, accidentally or deliberately, at any time. Two oil shocks in six years taught the world that energy security was not a luxury but a survival requirement.
But the second shock also contained the cure for the disease. Volcker’s rate hikes, however brutal, broke the back of inflation and restored the Fed’s credibility. High oil prices triggered the conservation and non-OPEC production boom that would destroy OPEC’s pricing power within five years. The pain of 1979-82 was real, but it created the conditions for two decades of cheap oil, low inflation, and the longest economic expansion in American history.
The next episode covers the most dramatic reversal in the history of commodity markets. Saudi Arabia, tired of cutting production to hold up prices while every other producer free-rode, decided to open the taps. Oil would crash from $30 to $10 in a matter of months, and the OPEC era would effectively end.