Why a ceasefire won't fix the oil crisis: supply, demand, and the phantom ceasefire problem

When the Strait of Hormuz closed on 28 February, global oil inventories stood at approximately 8,210 million barrels — the highest level since February 2021. OECD commercial stocks were above the five-year seasonal average. The IEA's pre-war forecast projected a surplus of 3.8 million barrels per day for 2026, as OPEC+ unwound production cuts and non-OPEC producers continued to grow output.

On paper, markets had never been better prepared for a supply shock.

The problem is scale. The Hormuz closure removed approximately 15 million barrels per day from accessible global supply — four times larger than the 1973 Arab oil embargo, and an order of magnitude beyond the 2022 Russia-Ukraine disruption. At that deficit rate, global inventories drain at roughly 200 million barrels per month. The IEA's record 400-million-barrel coordinated reserve release — the largest in the organisation's history — covers barely 27 days of the shortfall.

High stocks buy time. They do not replace flow.

The most common misunderstanding of this crisis is that supply dropped from 108 to 96 million barrels per day overnight. It did not. When Hormuz closed, approximately 400 million barrels of oil were already aboard tankers heading to consumers — a pipeline of ships representing roughly three weeks of Hormuz throughput. Refineries held a further 20 to 30 days of crude inventory. The IEA's strategic reserve releases began within days.

The result was a gradual decline in effective supply — the oil that actually reaches consumers — from 108 in February to approximately 104.5 in March, 102 in April, and 98 by May. The transit pipeline empties first. Refinery inventories follow. By May, the buffers are gone and the market is running on bypass pipelines, strategic reserves, and whatever non-Hormuz producers can deliver.

Non-Hormuz producers continue at approximately 88 million barrels per day. Saudi Arabia's East-West Pipeline delivers roughly 5.8 million barrels per day to Yanbu on the Red Sea. The UAE's ADCOP pipeline to Fujairah adds 1.3 million barrels per day. Strategic reserve draws add 1.2 to 1.5 million barrels per day. Total accessible supply: approximately 96 to 97 million barrels per day against demand of 101 to 103. A structural deficit of 4 to 7 million barrels per day.

This analysis models two recovery scenarios from the current position.

Scenario 1: Strait reopens (optimistic). A ceasefire is reached in late April or May, and the Strait of Hormuz physically reopens to commercial shipping. Even in this best case, supply does not catch demand until approximately September 2026, because of a chain of lags the market has not priced in: field restart takes 4–8 weeks, insurance re-evaluation takes 2 weeks, tanker loading and transit takes 3 weeks, and refinery ramp-up takes 2–4 weeks. Total elapsed time from ceasefire to normalised product supply: approximately three months.

Scenario 2: Phantom ceasefire (most likely). A ceasefire is declared, but the strait stays physically blocked. Political uncertainty, mines, damaged port infrastructure, and continued insurance premiums and insecurity prevent commercial shipping from resuming. Only the war-risk premium — approximately $4 per barrel — deflates immediately. The underlying supply disruption persists. Some Gulf crude eventually reroutes around the Cape of Good Hope, but this adds 10 to 14 days and $15 to $20 per barrel in shipping costs. Brent crude finds a structural floor around $130 per barrel — the marginal cost of Cape rerouting. Under the phantom ceasefire, supply never catches demand in 2026. There is a persistent deficit of 2 to 3 million barrels per day through December. The recovery half-life is 260 days.

The disruption looks different depending on which fuel you examine. The Strait of Hormuz blockade does not only remove crude oil from the market. The Gulf also exported 3.3 million barrels per day of refined products — diesel, gasoline, jet fuel, LPG — plus 1.5 million barrels per day of liquefied petroleum gas. The bypass pipelines carry crude only. These refined product exports have zero alternative route.

When refineries outside the Gulf try to replace lost feedstock with alternative crudes, the product yield shifts. Gulf crude is predominantly medium-heavy sour (Arab Medium, Arab Heavy). The available substitutes — Russian Urals, US WTI, Atlantic Basin grades arriving via Cape — are lighter and sweeter. Lighter crude produces more gasoline and naphtha per barrel, but less diesel and gasoil. The result is a crude quality mismatch that creates winners and losers among fuel types.

The oil price reported in headlines — Brent crude futures at $99 per barrel — reflects what the market expects to pay for delivery in one to two months. It prices in some probability of a ceasefire. The price for physical cargo, available for delivery now, tells a different story.

Dated Brent — the S&P Platts assessment of actual cargo prices for near-term delivery — hit $144 per barrel on 2 April, the highest level since the 2008 financial crisis. As of 14 April, it stands at $132, a $33 premium over futures. The North Sea Forties grade briefly touched $150. This backwardation reflects the reality that refineries need oil now and cannot wait for a diplomatic resolution.

The crack spreads — the premium of each refined product over crude — tell the product-level story. The jet fuel crack reached $106 per barrel, four times its normal level of approximately $25. At that premium, fuel constitutes roughly 55% of airline operating costs, up from approximately 30% in normal markets, rendering many routes unprofitable. The diesel crack peaked at $46 per barrel in Northwest Europe, double the 2022 Russia-Ukraine peak.

The Iran war began at a moment when global oil markets appeared well supplied. Inventories were high. A surplus was forecast. OPEC+ was unwinding cuts. Non-OPEC production was growing.

None of that prevented the largest oil supply disruption in history from draining those inventories at an unsustainable rate, breaking refined product markets in ways that crude oil statistics do not capture, and creating a physical-futures price gap that signals deep structural stress.

A ceasefire — when it comes — will not mean a return to $73 oil. Even in the most optimistic scenario, supply chain lags mean three months before product markets normalise. Under the more likely phantom ceasefire, where political agreement does not translate into physical reopening of the strait, Brent crude floors at approximately $130 per barrel, diesel remains structurally short, and the crisis extends well into 2027.

The countries and companies that anticipated energy supply concentration as a risk — rather than treating it as an abstraction — are the ones managing this crisis most effectively. Those that did not are now paying the price, measured in GDP points, import bills, and queues at fuel stations.