Brent crude touched $100 a barrel for the first time since late May after Houthi militants attacked two Saudi tankers in the Red Sea, pushing oil to a two-month high even as Donald Trump’s revamped tariff regime took effect across 60 trading partners. The simultaneous shocks, a geopolitical spike in energy costs and a structural rewrite of US import duties, landed on the same Friday, giving markets a real-time stress test of inflation expectations just as UK retail data offered a fleeting glimpse of consumer resilience.
Oil and the Red Sea
The benchmark’s return to triple digits mirrors the March rally that followed US and Israeli strikes on Iran. This time the trigger was a militia assault on commercial shipping, which Trump answered by declaring Iran “responsible” for the re-emergence of war in the Middle East and promising “major military punishment.” The US has now struck Iranian targets for twelve consecutive nights, a sustained campaign that has gone largely unpriced in equity markets focused on the tariff calendar. The Houthis, an Iran-backed group based in Yemen, have effectively turned a regional proxy conflict into a global supply-line lever.
Tariffs reset
Trump’s new duties, ranging from 10 to 12.5 per cent, replaced the blanket 10 per cent levy imposed in February, a policy the Supreme Court subsequently ruled illegal in key parts. The revised schedule covers the UK, China and the European Union among others, and came into force on Friday. The British Chambers of Commerce warned immediately that the tiered structure could harm the competitiveness of key industries, a judgment that will take quarters to verify but signals that the compliance burden has not disappeared, only mutated. For UK policymakers, the timing is awkward: higher oil prices feed directly into the cost-of-living pressures Andy Burnham has pledged to ease.
Domestic cross-currents
UK retail sales rose one per cent in the latest reading, driven by warm weather and heavy discounting, a combination that suggests volume gains came at the expense of margin. Business activity expanded for the first time in three months, a tentative sign that the private sector may be weathering the policy noise. Whether either data point survives the next oil invoice or customs bill is the open question. The activist challenge at Workspace, which failed to unseat the board but extracted a warning from the dissident investor, underscores that corporate governance fights are proceeding on a parallel track, undeterred by macro volatility.
What matters next is whether the $100 oil level holds or fades, and whether the new tariff architecture survives legal challenge better than its predecessor. The Supreme Court’s intervention proved the last version was built on shaky authority; this one has not yet been tested. Markets are pricing continuity. History suggests they should price contingency.