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Iran Conflict 2026
21MAY

Brent above $116, set for record month

2 min read
09:55UTC

Brent crude advanced above $116, up 72% from pre-war levels and heading for its largest monthly increase on record. Markets are pricing prolonged conflict, not resolution.

ConflictAssessed
Key takeaway

Markets are pricing prolonged war, not imminent resolution.

Brent Crude advanced above $116 per barrel on 30 March, approximately 72% above its pre-war level of $67.41. 1 The monthly gain is heading for a record. Goldman Sachs maintained a $14 to $18 per barrel geopolitical risk premium is baked into the price. Global stock markets extended their selloff as Houthi entry and the US military build-up stoked prolonged-conflict fears.

The price trajectory tells the story of a market that has abandoned hope of a quick resolution. Brent settled at $112.57 on 28 March , already elevated by Houthi entry. Trump's oil seizure statement, the third consecutive Houthi attack on Israel, and Pentagon confirmation of ground operations planning pushed it above $116 two days later.

AIS tracking data paints a bleaker picture than headline prices suggest. Shadow fleet vessels account for 80% of Hormuz transits in March, up from 15% in February . Legitimate commercial traffic has effectively stopped: approximately three transits per 24 hours against a pre-war baseline of 138. The Hormuz 'reopening' is a reorganisation of traffic to benefit non-US-aligned operators, denominated in yuan, under IRGC naval supervision.

The 6 April deadline for Trump's power plant strike threat is six days away. If the deadline passes without diplomatic movement and the 82nd Airborne stages forward from Kuwait, Goldman's risk premium estimate will need revision upward. Every dollar on Brent translates to approximately 2.5 pence per litre at UK petrol pumps within a week.

Deep Analysis

In plain English

Brent crude is the main international benchmark for oil prices. Before the war started, a barrel of oil cost $67. By 30 March it cost over $116. That is a 72% increase in one month. Higher oil prices feed through into everything: petrol and diesel costs, heating bills, the price of food and goods that are transported, and the cost of making plastic and chemicals. The monthly increase is on track to be the largest in recorded history. Goldman Sachs, the US bank that tracks commodity prices, says there is an extra $14 to $18 on every barrel just because of the war risk. The closer US ground forces get to Iran's oil export terminal at Kharg Island, the higher the risk premium is likely to rise.

What could happen next?
  • Risk

    The 6 April power plant strike deadline, with no diplomatic movement, risks a further price spike beyond Goldman's current risk-premium estimate if Trump follows through.

  • Consequence

    The IEA's 400 million barrel emergency release has not stabilised prices. Markets are treating this as a structural supply disruption, not a temporary spike amenable to reserve releases.

First Reported In

Update #52 · Trump wants Iran's oil; 3,500 Marines land

Bloomberg· 30 Mar 2026
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Different Perspectives
Turkey (Shakarab consideration)
Turkey (Shakarab consideration)
Ankara serves as one of two Western-adjacent Iran back-channels while Turkish national Gholamreza Khani Shakarab faces imminent execution on espionage charges in Iran. President Erdogan cannot deflect the domestic political crisis that a Turkish execution would trigger, which would force suspension of the mediating role.
Germany (Bundestag gap)
Germany (Bundestag gap)
Belgium, Germany, Australia, and France committed Hormuz coalition hardware on 18 May. Germany's Bundestag authorisation for the coalition deployment remains pending, creating a constitutional gap between the commitment announced and the parliamentary mandate required to operationalise it.
IEA and oil market analysts
IEA and oil market analysts
The IEA's $106 May Brent projection met the market in one session on 20 May as Brent fell 5.16% on diplomatic optimism. Goldman Sachs and Morgan Stanley's two-layer premium framework holds: the kinetic component compressed; the structural insurance component tied to Lloyd's ROE remains unresolved.
Hengaw
Hengaw
Documented the dual Kurdish execution at Naqadeh on 21 May, the two Iraqi-national espionage executions on 20 May, and Gholamreza Khani Shakarab's imminent execution risk. The 24-hour cluster covers two executions at one facility, the first foreign-national espionage executions, and a Turkish national whose death would suspend Ankara's mediation.
Lloyd's of London
Lloyd's of London
Hull rates stand at 110-125% of vessel value on the secondary market; the Joint War Committee has conditioned cover reopening on written ROE from the coalition or PGSA. The Majlis rial bill makes any compliant ROE structurally impossible to draft while the PGSA's yuan portal remains its operational mechanism.
United Kingdom and France (Northwood coalition)
United Kingdom and France (Northwood coalition)
The 26-nation coalition paper requires Lloyd's to see written rules of engagement before Hormuz war-risk cover reopens. The Majlis rial bill adds a second governance incompatibility on top of the unpublished PGSA fee schedule; coalition ROE cannot mention rial without conceding Iranian sovereignty over the strait.