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Iran Conflict 2026
16MAY

Brent at $112 as Houthis join the war

2 min read
12:41UTC

The IEA's largest-ever emergency oil release has not stabilised prices; a Dow executive warned supply chains will take nine months to recover after the strait reopens.

← Back to Two Hormuz papers; Washington on neitherJump to analysis ↓
ConflictDeveloping
Key takeaway

Nine months of supply chain damage is locked in regardless of when the war ends.

Brent Crude closed at $112.57 on 28 March, up 4.22% on the day. Pre-war Brent was $67.41; the current price represents a 67% increase in 29 days. The Houthi entry and Iran's firm rejection of negotiations drove the reversal. 1

The IEA's record 400 million barrel emergency release, the largest in the agency's 50-year history, has not stabilised prices. The IEA itself said why: "The most important factor is resumption of regular transit through the strait of Hormuz." 2 European reserves are predominantly industry-held: 74.8 million barrels from industry versus 32.7 million from government, giving European governments less direct control than the headline figure implies.

Dow CEO Jim Fitterling stated the damage is already locked in: even if Hormuz reopens tomorrow, petrochemical supply chains will take 250-275 days to unwind. The US-Asia petrochemical pricing gap has surged from under $500 to over $1,200 per metric tonne. 3 US farmers face a 2 million tonne urea shortfall during spring planting, with urea prices up 49% to $720 per tonne. Corn and wheat yields on affected fields could fall 10-20%, with downstream effects on global grain prices by autumn.

Deep Analysis

In plain English

Oil prices closed at $112.57 per barrel on 28 March, up about 4% on the day. Before the war started, a barrel cost $67.41. The 67% rise in 29 days is one of the fastest sustained oil price increases in modern history. The IEA, a group of oil-consuming countries, released the largest emergency oil reserve in its history: 400 million barrels. It has not reduced prices. The IEA itself said why: reserves cover a temporary supply disruption; they cannot substitute for a closed shipping route. For a British driver, $112 oil means roughly £1.80 per litre at the pump. For farmers, fertiliser is the bigger problem. Urea, the chemical used to grow corn and wheat, has risen 49% in price and the US faces a 2 million tonne shortage this spring planting season. Crop yields could fall 10-20%, and those effects will reach food prices by autumn.

What could happen next?
  • Consequence

    A ceasefire today does not end the economic damage: Dow's 250-275 day supply chain unwind means petrochemical-driven inflation persists into Q1 2027 regardless of conflict resolution.

  • Risk

    The 2 million tonne urea shortfall is not substitutable within a planting season; US crop yields in autumn 2026 are already compromised regardless of war outcome.

Sources:Fortune·IAEA / CBS News·IAEA / CBS News
Mentions:Strait of Hormuz →Iran →Byron Callan →
First Reported In

Update #50 · Houthis join; Iran holds two chokepoints

Fortune· 28 Mar 2026
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Causes and effects
Caused by
War leaves US farms 2m tonnes short
The urea shortfall and Brent surge are direct economic consequences of the Hormuz disruption and Houthi entry compounding energy market pressure.
Occurred 27 Mar 2026
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This Event
Brent at $112 as Houthis join the war
The economic damage is already locked in regardless of when the war ends; the petrochemical and fertiliser shocks will outlast any ceasefire by months.
Led to
Brent at $112 as Houthis enter the war
Brent's 4.22% surge to $112.57 reflects the compounding economic impact of Houthi entry into the conflict adding demand-side uncertainty.
Occurred 28 Mar 2026
Read story →
Different Perspectives
India (BRICS meeting host, grey-market beneficiary)
India (BRICS meeting host, grey-market beneficiary)
New Delhi hosted the BRICS foreign ministers' meeting on 14 May that Araghchi attended under the Minab168 designation, giving India a front-row seat to Iran's diplomatic positioning. India's state refiners have been absorbing discounted Iranian crude through grey-market routing since April; Brent at $109.30 means every barrel sourced outside the formal market generates a structural saving.
Hengaw / Kurdish human rights monitors
Hengaw / Kurdish human rights monitors
Hengaw's daily reports from Iran's Kurdish provinces remain the sole independent cross-check on Iran's judicial activity during the conflict. Two executions across Qom and Karaj Central prisons on 15 May and five Kurdish detentions on 15-16 May indicate the wartime judicial pipeline is operating independently of military tempo.
Pakistan (mediator and bilateral partner)
Pakistan (mediator and bilateral partner)
Islamabad spent its diplomatic capital as the US-Iran MOU carrier to secure LNG passage for two Qatari vessels through a bilateral Pakistan-Iran agreement, spending its mediation credit for direct economic gain. China's public endorsement of Pakistan's mediatory role on 13 May is the structural reward.
China and BRICS bloc
China and BRICS bloc
Beijing endorsed Pakistan's mediatory role on 13 May, one day after the BRICS foreign ministers' meeting in New Delhi. Chinese state banks are processing PGSA yuan toll payments; China has not commented on its vessels' continued Hormuz passage, but benefits structurally from a non-dollar toll system it did not design.
Iraq (bilateral passage partner)
Iraq (bilateral passage partner)
Baghdad negotiated a 2-million-barrel VLCC transit without paying PGSA yuan tolls, offering political alignment in lieu of cash. Iraq's position inside Iran's adjacent bloc makes it the natural first bilateral partner and a template for how Tehran structures passage deals with states that cannot afford Western coalition membership.
Bahrain and Qatar (Gulf signatories)
Bahrain and Qatar (Gulf signatories)
Both signed the Western coalition paper while hosting US Fifth Fleet and CENTCOM's Al Udeid base, respectively. Qatar occupies the sharpest contradiction: it is on coalition paper while simultaneously receiving LNG passage through the bilateral Iran-Pakistan track, a position Doha has tacitly accepted from both sides.