Ceasefire Buys Time for Oil, But Fragile Supply Reset Threatens Prolonged Price Volatility

The conflict has created a historic supply shock, with the Strait of Hormuz effectively closed and Middle East producers forced to slash output. The disruption is staggering: crude and product flows through the chokepoint have collapsed from around 20 mb/d before the war to a trickle. To cope, Gulf producers have cut total oil production by at least 10 mb/d. This sudden, massive deficit has thrown the global balance into chaos.

The scale of the immediate swing is dramatic. Global oil supply is projected to have plunged by 8 mb/d in March, a violent reversal from the pre-war trend of building inventories. This isn't just a regional hiccup; it's a systemic shock that has forced the International Energy Agency to activate emergency reserves and prompted widespread flight cancellations and LPG disruptions that are expected to curb global oil demand by around 1 mb/d in the coming months.

The recent ceasefire offers a temporary lifeline. It provides a two-week window for the Strait to reopen, which helped send Brent crude prices down sharply to $94.74 on the news. Yet this relief is fragile. Prices remain elevated, and the market's underlying balance was already precarious. The pre-war trend of building inventories has been obliterated by this sudden 8 mb/d deficit. The ceasefire doesn't erase that imbalance; it merely buys time for a partial, temporary restoration of flows. The risk of a resumption of hostilities looms, keeping the market on edge and prices vulnerable to renewed spikes.

The Demand Reality: Growth vs. Curtailed Consumption

The fundamental story of oil demand is one of steady, if uneven, expansion, but it is now colliding with a sudden, massive supply shock. The International Energy Agency forecasts global oil demand will grow by 850 kb/d in 2026, a slight acceleration from last year.

This growth is almost entirely driven by non-OECD economies, with China leading the charge. More importantly, the composition of that growth has shifted: petrochemical feedstock products will represent more than half of this year's gains, compared to just a third last year when transport fuels were the main driver. This signals a market where industrial and chemical demand is becoming more critical, but also potentially more sensitive to economic cycles.

Yet this projected growth must be viewed against a backdrop of pre-war weakness. Just weeks before the conflict, the market was expected to be oversupplied. Prior to the conflict, our assessment was the global oil market was oversupplied and global oil inventories were building quickly. The IEA's own data from the start of the year shows the trend: global oil inventories rose by 37 mb in December, with total stock builds for 2025 reaching a staggering 477 mb. This oversupply dynamic meant prices were falling before the war, creating a fragile equilibrium that the conflict has violently overturned.

The immediate impact on consumption is already visible. Global refinery throughputs, the engine of demand for crude, have declined from an all-time high of 86.3 mb/d in December to 85.7 mb/d in January. This drop, driven by maintenance and lower margins, shows the market's ability to absorb oil is not infinite. Economic uncertainties and the war itself are weighing on broader consumption, limiting the market's capacity to absorb a sudden influx of returning supply. The ceasefire offers a path to normalcy, but the market's underlying demand strength is not robust enough to immediately offset the massive deficit created by the conflict. The risk is not just a price spike, but a prolonged period where supply struggles to find a buyer, keeping inventories tight and prices elevated well into the second half of the year.

The Inventory Buffer: A Critical, Depleting Safety Net

The pre-war market was built on the assumption of ample safety. Global oil inventories were building quickly, a sign of a system with room to absorb shocks. That buffer was the market's insurance policy, allowing for the steady, falling prices that characterized the year before the conflict. It meant the system could handle a moderate disruption without immediate price spikes. That insurance is now being spent.

The massive supply drop has reversed the trend. The 8 mb/d plunge in global supply in March has been met with a demand response that is insufficient to fill the gap. The result is a rapid draw on storage. The IEA's own data shows global oil stocks were at a record high of 8,210 mb in January. But with a global inventory draw of 5.1 million b/d projected for the second quarter, that buffer is being consumed at an alarming rate. Storage is no longer a safety net; it is becoming a constraint, with domestic tanks in Gulf producers filling up and forcing further production cuts.

This sets up the primary risk: a potential oversupply on the way out. The ceasefire opens the door for the return of 20 mb/d of disrupted flows through the Strait of Hormuz. If that volume floods back into a market where demand growth is projected at just 850 kb/d for 2026, the inventory system could be overwhelmed. The system that once absorbed excess supply is now depleted and under pressure. The danger is not just a price drop, but a sharp, disorderly correction if the return of flows outpaces the market's ability to consume it. The inventory buffer, once a source of stability, is now the key vulnerability in the path to a reset.

Geopolitical Risk and the Path Forward

The ceasefire is a fragile truce, not a resolution. Its two-week duration is a stark reminder of the extreme fragility in restoring supply. The market's relief was short-lived; Iran closed the Strait of Hormuz again Wednesday in response to Israeli attacks, instantly reigniting the risk premium. This pattern of deadlines and delays suggests the current pause is merely a tactical breathing space. The underlying geopolitical risk premium remains firmly priced in, keeping oil above pre-war levels despite the temporary reopening.

The path to a clearer market reset hinges on two key data sets. First, watch inventory flows. The expected draw on storage must now reverse into a build as the 20 mb/d of disrupted flows return. If inventories begin to rise again, it would confirm a return to the pre-war oversupply dynamic that was the market's baseline. Conversely, a slower-than-expected draw or a new disruption would keep the market tight. The IEA's emergency reserve release of 400 mb of oil provides a temporary buffer, but its impact will be temporary if flows remain blocked.

Second, monitor refinery utilization and product markets. The conflict has already crippled regional refining, with more than 3 mb/d of capacity shut. As the Strait reopens, the return of crude will test the system's ability to process it. Diesel and jet fuel are particularly vulnerable; these products are critical for global transport and are often exported from the Gulf. Any lingering disruption to their supply chains would keep product markets tight, supporting prices even if crude itself finds a buyer. The market's ability to absorb returning flows depends heavily on the health of these downstream markets.

The next major price move will likely be driven by a catalyst that either confirms the return to normal or exposes the fragility of the ceasefire. A sustained inventory build would signal the end of the supply shock, pressuring prices lower. But any renewed escalation or a failure of the Strait to stay open would likely trigger another sharp spike. For now, the market is caught between a powerful fundamental imbalance and the ever-present shadow of war.