Global energy markets faced renewed volatility this week as ongoing military engagements between the United States and Iran triggered a sharp rise in crude oil and natural gas prices. The geopolitical uncertainty has prompted financial markets to recalibrate their expectations for monetary policy, with investors now pricing in more aggressive interest rate hikes from central banks in the UK and Europe.
Energy Markets React to Supply Concerns
Brent crude, the international benchmark, climbed by as much as 4.6% on Tuesday, reaching $87.08 a barrel—the highest level recorded in over a month. This upward pressure follows a significant 10% surge on Monday, spurred by the announcement of a blockade on Iranian shipping. The tightening of maritime transit through the Strait of Hormuz, a critical artery for global oil supply, remains a focal point for analysts.
Kathleen Brooks, research director at XTB, noted that the disruption to shipping traffic is creating a tangible supply bottleneck. “When the supply chain gets gummed up, this is what keeps upward pressure on the oil price,” Brooks observed, highlighting that traffic through the strait has slowed significantly compared to recent weeks.
European energy contracts also saw substantial gains. The Dutch natural gas contract for August delivery rose nearly 3% to €52.8 per megawatt hour, while UK natural gas for the same period climbed 3.3% to 128.27p a therm.
Monetary Policy Expectations Shift
The rise in energy costs has reignited concerns over persistent inflation, leading financial markets to adjust their outlook for interest rates. For the first time in a month, traders are pricing in a quarter-point rate increase by the Bank of England in September, with the expectation of a second hike before the end of the year.
A similar pattern is emerging for the European Central Bank (ECB), as markets forecast consecutive quarter-point hikes in September and December. This represents a significant shift from earlier in the month, when expectations for such aggressive tightening were more muted amid a temporary period of relative stability in the region.
Market Impact
The repricing of interest rate risk was evident in the bond markets, where UK government bond yields reached their highest levels since May. The 10-year gilt yield rose five basis points to 5.02%, while the two-year gilt—highly sensitive to short-term rate expectations—jumped eight basis points to 4.45%.
Equity markets reacted with caution. The UK’s FTSE 100 index declined by 0.4%, though the broader energy sector saw gains, with BP and Shell shares rising 2.4% and 1.7% respectively. The Stoxx Europe 600 index also retreated, falling 0.5% as investors weighed the broader implications of geopolitical risks on global economic growth and corporate costs.
