Since the Iran war began, oil prices have risen and prompted comparisons with the 1973 and 1979 shocks. In the 1970s, Arab producers imposed an embargo over Western support for Israel, sending prices sharply higher and triggering measures such as gasoline rationing and car‑free days in parts of Europe. The key question now is whether a similar crisis could recur.
IEA executive director Fatih Birol warned the conflict is “already the biggest threat to energy security in history,” estimating an oil shortfall today of about 11 million barrels per day — larger than the roughly 5 million bpd shortfall in the 1970s and greater than losses after Russia’s 2022 invasion of Ukraine. He also said the gas market faces a larger shortfall than in 2022.
A major reason for the disruption is the near closure of the Strait of Hormuz, a chokepoint for roughly a fifth of global oil and gas shipments, which has reduced global flows by about 8%. Economists note the supply shock is sharper than in 1973–74, yet prices have not spiked as violently. In the 1970s oil prices first quadrupled and later tripled; today markets seem to be pricing in a shorter conflict, which dampens extreme swings. Prices at or above $100 per barrel are no longer unprecedented — similar levels occurred in 2007–08, 2011 and after the 2022 Ukraine invasion.
The character of the shock also differs. Much of the current loss stems from blockades and temporary shutdowns rather than permanent destruction of infrastructure. Still, attacks tied to the conflict have struck more than 40 energy installations across nine Middle Eastern countries. Some sites could take months or longer to restore. Qatar has warned that strikes on its Ras Laffan LNG complex could knock about 17% off output from that facility for three to five years, though analysts note that even such an outage would represent only a few percent of global gas supply.
Markets and supply sources are structurally different now than in the 1970s. OPEC’s share of global crude has dropped from more than half in 1973 to roughly 36% today. U.S. production has risen sharply and has supplied much of the net increase in global output over recent decades. Overall world oil production has grown from under 60 million bpd in 1973 to nearly 94 million bpd by 2022, making the market larger and more diversified.
Countries and companies have also built strategic and commercial reserves to cushion shocks. IEA‑reported reserves stood at about 8.2 billion barrels early this year — the highest since February 2021. IEA members agreed to release 400 million barrels from emergency stocks to address immediate shortfalls; that release, together with other measures, is estimated to have lowered the crude shortfall from roughly 11 million bpd to about 8 million bpd. The U.S. has temporarily relaxed enforcement on some Russian and Iranian cargoes already at sea to ease supply strains.
Analysts estimate OECD stocks could cover lost Strait of Hormuz shipments for roughly nine months, while China’s reserves might cover its Middle East imports for around seven months. The big unknown remains the war’s length and whether additional facilities or shipping routes will be hit. If the Strait of Hormuz stays closed and damage accumulates, the risk of a severe, prolonged energy crisis rises.
Economic effects are already appearing: upward pressure on inflation and likely reductions in oil consumption that will slow industrial output. Governments have not imposed widespread rationing yet, though some local measures exist — for example, Pakistan moved a major cricket tournament to a watch‑from‑home format to conserve energy.
In short, the current disruption is large and could be comparable with or larger than the 1970s shock. But market expectations of a shorter conflict, greater supply diversification, and substantial reserves and emergency releases have so far prevented a repeat of the dramatic price spikes and prolonged stagflation of the 1970s. The path ahead hinges mainly on how long the conflict endures and whether further infrastructure or shipping disruptions occur.