29MAR

Brent at $112 as Houthis enter the war

2 min read

09:10UTC

Oil climbed 4.2% to $112.57 as the Houthi attacks added a second chokepoint threat to a market already pricing in near-total Hormuz closure.

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ConflictAssessed

Key takeaway

Brent's 51% monthly gain reflects dual-chokepoint risk not yet fully priced by markets.

Brent crude settled at $112.57 on 28 March, up $4.56 (4.22%), driven by Houthi entry into the conflict ¹. WTI crossed $100 for the first time since the Houthi escalation began. The monthly gain of approximately 51% is the largest single-month increase since the COVID recovery in mid-2021. Goldman Sachs estimates a $14 to $18 per barrel geopolitical risk premium is already baked into the price.

The Majlis Hormuz toll bill is expected to be finalised this week. Passage would embed Hormuz control in Iranian domestic law, making it constitutionally harder for any future negotiator to concede the point. The de facto $2 million per-voyage toll is already operational, denominated in Chinese yuan, with refusal to pay triggering boarding by IRGC naval forces. IEA demand destruction (growth revised down 210,000 barrels per day) suggests the price surge is partly offset by recession-driven demand collapse .

Deep Analysis

In plain English

Oil has risen 51% in 29 days, from about $67 per barrel before the war to $112.57. For comparison, petrol in the UK is now roughly £3.50 to £3.70 per litre where it was under £2.20 before the conflict. The immediate driver is the near-total closure of the Strait of Hormuz, through which 20% of the world's oil normally flows. The Houthi entry into the conflict on 28 March added another 4.22% to the price in a single day. The Iranian parliament is expected to pass a law this week making the Hormuz toll permanent under Iranian domestic legislation. If it does, markets will likely price in a longer-term disruption, pushing prices higher still.

Source Landscape

This story draws on mixed-leaning sources from United States

United States

Primary parallel: The 1973 Arab oil embargo produced a 300% price increase in five months. The current 51% increase in 29 days is faster in velocity but remains lower in absolute terms. Both events triggered recessions in oil-importing economies.

Counter-parallel: In 1973, the US had no domestic shale production; the energy transition had not begun; and there were no strategic petroleum reserves of comparable scale. The IEA's 400 million barrel release is a buffer the world did not have in 1973.

Brent's 51% monthly gain represents the largest single-month increase since mid-2021. The Majlis toll bill, expected to pass this week, would embed a $2 million per-vessel toll structure in Iranian domestic law. Passage would likely trigger a further market repricing as the duration premium on the disruption extends.

At $112.57 per barrel, UK retail petrol prices are approximately £3.40 to £3.70 per litre depending on refinery margin assumptions. Goldman Sachs's $14 to $18 geopolitical risk premium implies the underlying commodity cost would fall to $94 to $98 if the conflict ended tomorrow. The IEA's demand revision of -210,000 b/d signals early recession pressure that may widen if prices remain elevated through May.

Consensus view: Goldman Sachs commodity research and JP Morgan energy strategy desks both identify a $14 to $18 per barrel geopolitical risk premium in current Brent pricing above fundamentals, noting that markets are not yet pricing the full demand-destruction scenario because the war's duration remains uncertain.

Counter-view: Saudi Aramco's investment committee and OPEC Secretariat economists warn that the recession signal in IEA demand data (-210,000 b/d revision) may accelerate faster than the geopolitical premium sustains; a demand-driven price collapse could occur simultaneously with supply disruption.

Key tension: Whether the Majlis Hormuz toll bill passage this week, converting de facto IRGC control into domestic law, will force markets to price in a permanent rather than temporary Hormuz disruption, triggering the next price surge.

Sources:International Energy Agency·CNBC

Mentions:Strait of Hormuz →Iran →Islamic Revolutionary Guard Corps (IRGC) →International Energy Agency →Majlis →

First Reported In

Update #51 · Iran hits aluminium plants; Hormuz emptying

International Energy Agency· 29 Mar 2026

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Causes and effects

Caused by

Brent at $112 as Houthis join 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

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This Event

Brent at $112 as Houthis enter the war

Brent's 51% monthly gain is the largest since the COVID recovery in mid-2021, and the Majlis Hormuz toll bill expected this week could convert the de facto closure into permanent law.

Led to

Brent above $116, set for record month

Brent at $112.57 on 28 March (ID:1695) advanced further to above $116 by 30 March, driven by Trump's oil seizure statement and the third consecutive Houthi attack on Israel.

Occurred 30 Mar 2026

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Different Perspectives

Oil market and P&I insurers

Brent cleared $87 intraday only once CENTCOM's blockade became physical rather than declared, even though P&I Clubs had already excluded Hormuz war risk a week earlier on 7 July: capital hedged ahead of enforcement, but prices moved only after it.

UAE reporting

UAE reporting placed the Omani tanker deaths at one seafarer against the International Maritime Agency's count of two, the first time in this war that a Gulf state's casualty figures have diverged from an international monitor's.

Jordan

Iranian strikes reached Jordan again on 14 July as part of the Gulf-wide retaliation for the Hormuz blockade, extending the conflict's geographic footprint to a state with no direct stake in the strait itself.

Bahrain

Bahrain sounded air-raid sirens on 14 July during Iran's Gulf-wide retaliation, the same day CENTCOM's blockade order and fourth night of strikes pushed the conflict's physical reach into the wider Gulf littoral.

Kuwait

Kuwait intercepted Iranian missiles and drones on 14 July as Tehran's blockade retaliation reached Gulf states beyond Iran's immediate shoreline, confirming Kuwaiti airspace now sits inside Iran's retaliatory envelope.

Oman

Oman absorbed the war's first tanker casualties in its own waters on 14 July, with two supertankers disabled and seafarers killed, putting the sultanate's shipping lanes directly in the path of the blockade fight for the first time.