Takeaways
- The market is no longer trading supply expectations, it is trading inventory math, and that math is uncomfortably tight as buffers approach operational minimum
- Once inventories stop absorbing shocks, price becomes the rationing mechanism, meaning volatility shifts from episodic to structural
- Even in a best case reopening scenario, physical normalization lags financial pricing, creating a window where markets price balance long before the system actually regains it
JPMorgan Runs The Numbers
Just over a week ago, I highlighted work from JPMorgan commodity analyst Natasha Kaneva, who mapped out the delayed physical shockwave now rippling through energy markets in the wake of the Iran war. The key insight was timing. The disruption does not hit all at once. It travels with the cargo.
As oil and LNG shipments that left the Gulf weeks ago begin arriving at their destinations, the market is still living off yesterday’s flows. But behind them sits a growing vacuum, with fewer follow-on cargoes scheduled, particularly for import-dependent Asian economies that face the sharpest edge of demand destruction.
As Kaneva put it, much like during COVID, the shock unfolds sequentially rather than simultaneously. It is a rolling supply disruption moving westward, dictated by shipping times and unevenly buffered by regional inventories.
Fast forward, and JPMorgan’s commodity specialist Natasha Kaneva has followed up with the next critical piece in the unfolding energy crisis series. The focus now shifts to the inevitable question: once fresh supply slows, how long can global inventories carry the load before the system starts to strain.
The core issue is straightforward. The oil market entered this shock with what looked like a comfortable buffer. But that buffer is being drawn down steadily, and inventories only protect the system up to a point.
Kaneva defines that point as the “operational minimum” — the level below which the physical system begins to lose functionality. For OECD commercial inventories, that sits around 30 days of forward refining throughput cover. In theory, the system could run more tightly, perhaps closer to 24 days, but that would entail severe logistical stress and, in reality, a breakdown in market liquidity.
As inventories approach that threshold, the market stops relying on stockpiles to balance supply and demand. Price becomes the mechanism that does the rationing.
Against that framework, Russia’s invasion of Ukraine hit the oil market at a moment of maximum fragility. Following deep COVID-era cuts from OPEC+, OECD commercial crude inventories had already been drawn down to roughly 968 million barrels, or about 27 days of forward refining demand cover. That is not a buffer. That is a system already leaning on its lower bounds, uncomfortably close to the operational minimum and carrying very little shock-absorbing capacity.
What we are dealing with now is a different magnitude altogether. According to JPMorgan, the effective loss of around 14 mbd tied to a closure of Strait of Hormuz compresses the market’s adjustment channels down to just two. Inventory draws and demand destruction. The slow bleed or the forced reset.
The latter is already showing up across Asia, most visibly in middle distillates and jet, where cracks are starting to reflect stress rather than strength. Demand is not collapsing outright, but it is bending at the margins, particularly in import-dependent economies that cannot absorb sustained price shocks.
The former is playing out more quietly. Inventory draws are happening beneath the surface, obscured by shipping lags, floating storage, and the uneven geography of stockpiles. What looks stable on the screen is often just timing. The barrels are still arriving, but the pipeline behind them is thinning.
In this context, Natasha Kaneva at JPMorgan estimates that OECD commercial crude inventories could draw by roughly 166 million barrels in April, followed by another 67 million barrels in early May, bringing stocks down toward the operational minimum of around 842 million barrels.
At that point, the system is no longer absorbing the shock. It is depleting its buffers in real time, while demand is increasingly rationed through price rather than inventory.
Which brings us to the obvious next step, unless policymakers decide the cure is to crush demand hard enough to restore balance the old-fashioned way.
Because once inventories breach that operational floor, there are no buffers left to lean on. The system shifts from managing flows to enforcing discipline, and that discipline comes through price. Either supply returns, or demand is forced lower, and history shows the latter tends to arrive faster, and far more brutally, than anyone is willing to admit upfront.
Rebuilding Inventories
A reopening of the Strait of Hormuz would trigger a sharp but uneven normalization, with financial markets reacting far faster than the physical system can respond.
Prices would quickly discount not just the return of transit, but an assumption of restored supply equilibrium. But that is where the disconnect lies. Tankers need to be repositioned, insurance markets need to reset, and supply chains need to be rewired.
In practice, the physical recovery will lag by months. The market will price perfection long before the barrels actually arrive.
Before the war, the Gulf system was running at full stride, with seven key producers supplying roughly 32.7 mbd across crude, condensate, and NGLs. Today, according to JPMorgan, shut-ins have surged to around 12.3 mbd, with crude and condensate doing most of the damage. The bank’s assessment is that the market is now at or near peak disruption, with perhaps another 1 mbd at risk, taking total curtailed supply toward 13 mbd.
What happens next is not a snapback. It is a staged recovery.
JPMorgan lays out a three-phase ramp, beginning with a cautious reopening. In the first three weeks, roughly 6.3 mbd of production is expected to come back online, about half of what was lost, but even that assumes conditions stabilize quickly enough to restore a minimum level of operational confidence.
Because even with a ceasefire, the system does not simply restart on command. Port operators, tanker owners, pilots, and crews all need to be convinced the risk has genuinely cleared. JPMorgan assumes it takes around two weeks for shipping firms to gain that confidence before resuming Gulf crossings.
From there, the mechanics slow things further. A VLCC still needs 24 to 48 hours just to berth, load, and depart. Layer in congestion at terminals, bottlenecks through the Strait of Hormuz, and elevated war risk insurance, and the restart becomes a grind rather than a surge.
Early cargoes would be skewed toward delayed liftings and priority buyers, particularly across Asia, where supply chains are most exposed. Even under a best-case scenario, JPMorgan’s view is that it takes closer to two months before port activity begins to resemble anything like normal.
Breaking down that first phase, JPMorgan maps a deliberately cautious restart profile rather than a surge back to full capacity.
Week 1 sees supply rise by roughly 1.7 mbd, as producers probe the corridor carefully, testing flows without committing full volumes in case disruptions flare back up.
By Week 2, an additional 2.3 mbd returns, with early successful transits helping rebuild confidence, even as security risk remains elevated and insurance costs stay punitive.
Into Week 3, a further 2.3 mbd comes back online, as the system begins to find its footing, perceived risks ease, and operational planning shifts from contingency to execution.
Stage 2 (Weeks 4–8): System Normalization
According to JPMorgan, the second phase is less about restarting flows and more about stabilizing the system. By the end of Month 2, Gulf supply is projected to recover to around 29.3 mbd, still roughly 3.4 mbd below pre-war levels, a reminder that normalization is not the same as full restoration.
Saudi Arabia leads the recovery, returning close to full capacity, helped by scale, infrastructure depth, and export optionality that allows it to reroute flows more efficiently than peers.
The UAE follows closely at around 95% recovery, supported by similar advantages, though still reliant on fully restored operational security across the corridor.
Further down the curve, the restart becomes more complex. Iraq and Kuwait lag, both constrained by storage-driven shut-ins and the logistical challenges of bringing fields back online. JPMorgan assumes each reaches roughly 80% capacity by Month 2. Iraq’s southern export system, anchored by Basra and Khor al-Amaya, has been repeatedly disrupted, with storage limits forcing aggressive production cuts and, at times, force majeure. Northern routes like Kirkuk to Ceyhan provide only partial relief. Kuwait faces a similar dynamic, with official guidance already pointing to a recovery timeline measured in months, not weeks.
Qatar stands apart for a different reason. JPMorgan estimates only around 60% recovery by Month 2, reflecting evidence of material damage at Ras Laffan and associated infrastructure. That implies a much longer repair cycle, potentially stretching into years, with knock-on effects not just for LNG, but for linked streams such as condensate, LPG, and other associated products.
Stage 3 (Months 3–4): Closing The Production Gap
In the final phase, JPMorgan sees the system moving from stabilization toward near-complete recovery. By Month 3, Gulf supply is expected to reach around 31.0 mbd, still roughly 1.7 mbd below pre-war levels, before climbing toward 99% of prior capacity by Month 4.
Saudi Arabia and the UAE lead the final leg, returning to full production as infrastructure, logistics, and shipping lanes fully normalize.
Iraq continues to lag but improves to around 90% capacity, with southern export routes gradually reopening and limited support from northern and overland flows. Even so, restart complexity and storage constraints continue to cap the pace.
Kuwait remains slower to normalize, holding near 80% capacity into this phase, broadly in line with guidance that full recovery may take three to four months after hostilities end.
Qatar edges higher to roughly 77% capacity, but remains structurally constrained. Damage at Ras Laffan and associated GTL infrastructure continues to cap output, with force majeure still in place and full restoration timelines stretching out toward three to five years.
By Month 4, JPMorgan sees the system operating at roughly 99% of pre-war supply, with most production effectively normalized. The key outlier remains Qatar, modeled closer to 87%, where damage to gas, LNG, and GTL infrastructure continues to drag on recovery. Even if tankers resume normal transit, the upstream to downstream chain remains impaired, slowing the return of NGLs, condensate, LPG, and helium.
Iran introduces a longer-tail layer of risk. Disruptions around South Pars, the backbone of its gas system, ripple through the entire value chain, from processing to liquids recovery to petrochemicals. In a system this tightly integrated, condensate and NGL output does not snap back with crude. JPMorgan assumes Iranian production still runs about 0.2 mbd below pre-war levels by Month 4.
Layering this into the broader recovery path, inventories only begin to rebuild once flows stabilize, typically about two months after the Strait of Hormuz reopens. The scale of the refill is not trivial. OECD commercial stocks would need roughly 150 to 200 million barrels to return to that 30-day forward cover threshold.
JPMorgan estimates the system can replenish at a pace of around 30 to 45 million barrels per month, or roughly 1.0 to 1.5 mbd. That implies a rebuilding phase stretching across four months, where the market is no longer pricing scarcity, but still not fully insulated from it.