Crude oil prices may have eased from recent highs following a temporary US-Iran ceasefire, but the relief is deceptive. The recent spike was not just a reaction to geopolitical headlines. It reflected a disruption to how oil moves through the global system, and those effects are already feeding through the world economy.
At the peak of tensions, tanker movement through the Strait of Hormuz slowed sharply, with .
The waterway carries roughly a fifth of global oil supply, making even short-lived disruption significant.
But the shock was not limited to transit delays. It extended to the broader operating environment around Gulf energy exports, where shipping schedules were disrupted, insurance costs surged and export operations at key terminals were constrained.
In several cases, operators slowed or temporarily halted loadings due to security concerns, effectively tightening supply even where production capacity remained intact.
What has been affected is not just production, but the entire chain that connects oilfields to global markets.
Export terminals in the Gulf have faced operational delays due to heightened security protocols and vessel congestion, while storage and blending facilities have been impacted by slower offtake, creating upstream bottlenecks.
Pipeline flows feeding crude to ports have also seen interruptions or reduced throughput as operators prioritise safety during heightened risk conditions.
This does not necessarily mean permanent destruction of capacity. But oil supply depends on coordination. When terminals slow, pipelines back up. When shipping halts, storage fills. When insurance costs spike, cargoes are delayed. The result is an effective tightening of supply reaching the market.
Justin Khoo, Senior Market Analyst for APAC at VT Markets, said the scale of disruption is far from typical.
“Even with signs of a ceasefire, the , as the scale of disruption to global supply remains unprecedented,” he said, adding that estimates suggest 12 to 15 million barrels per day have effectively been removed from the market, with nearly one billion barrels at risk in the near term.
The key question now is not whether the Strait of Hormuz reopens, but how quickly normal supply conditions can be restored.
Khoo said infrastructure damage, logistical bottlenecks and constrained production capacity mean recovery will be gradual rather than immediate.
“The key issue is not just whether the Strait of Hormuz reopens, but how quickly stable and insurable energy flows can resume,” he said.
Even if tensions ease, the system does not reset overnight. More than 1,000 vessels, including nearly 200 loaded tankers, have been delayed or rerouted. Clearing that backlog alone can take weeks, even under stable conditions.
Export terminals and port systems also take time to return to full capacity, as cargo schedules, pipeline flows and shipping routes are rebalanced. At the same time, , limiting the pace at which normal shipping can resume.
Even without large-scale physical destruction, facilities that have been disrupted or temporarily shut require inspection and phased restart. Industry estimates suggest that returning to normal throughput can take several weeks to a few months, depending on the extent of operational disruption.
The effects of the oil shock are already showing up across economies, even as prices pull back from recent highs.
A International Monetary Fund (IMF) assessment has warned that disruptions to energy supply from the West Asia conflict are likely to lead to higher inflation and slower global growth, even if tensions ease in the near term.
That warning is beginning to reflect in real economic activity. A Reuters analysis noted that rising crude prices have started to strain industries globally, with manufacturers and energy-intensive sectors in parts of Europe and Asia cutting output or warning of shutdowns as fuel and input costs rise.
The broader macro impact is well documented. The IMF estimates that a sustained 10% increase in oil prices can raise global inflation by about 0.4 percentage points and reduce output by up to 0.2%, underlining how even moderate supply disruptions can shift growth trajectories.
The World Bank has similarly found that oil price shocks tend to have persistent inflationary effects, particularly in economies dependent on imported energy.
What makes oil shocks .
Unlike most commodities, oil sits at the centre of economic activity. It directly affects transport, industrial production, fertilisers and power generation. When supply is disrupted, the impact moves quickly across sectors.
Empirical research shows that supply-driven oil shocks tend to slow global economic activity, not just raise prices, as higher input costs reduce consumption and investment.
The Federal Reserve Bank of Dallas has also found that disruptions in critical oil routes such as the Strait of Hormuz can push inflation higher and weaken demand, particularly when the shock is prolonged.
The transmission is sequential. Fuel costs rise first, followed by freight and input costs. Businesses then pass on these increases, pushing up inflation. As inflation rises, central banks are forced to keep monetary policy tighter for longer, slowing growth.
India has so far remained relatively insulated, supported by diversified sourcing and policy buffers. But that insulation may not hold if disruptions persist.
As a major oil importer, India remains exposed to sustained price increases. Higher crude prices raise the import bill, widen the current account deficit and push up inflation.
Manoranjan Sharma, Chief Economist at Infomerics Ratings, said the current disruption is already feeding through the system.
“The war has disrupted oil supply through damaged infrastructure, shipment delays, and reduced production, leading to prolonged shortages and volatile, high prices. Worldwide, this causes persistent inflation, higher energy costs, and slower economic growth, with developing economies suffering more due to their dependence on imports,” he said.
“In India, rising crude prices boost the import bill, expand the current account deficit, weaken the rupee, and increase inflation. With heavy reliance on imports, ongoing disruptions threaten fiscal stability and economic progress,” Sharma added.
The ceasefire may have cooled prices, but it has not restored normal operating conditions across the oil supply chain. Supply remains constrained, risks remain elevated, and the effects of the disruption are already feeding into inflation, growth and financial markets.
The adjustment has begun, and it will take time to reverse.