The intensification of hostilities in the Middle East has prompted a sharp increase in oil and gas prices, resulting in significant declines in stock market indices worldwide. As tensions escalate following military actions by the United States and Israel against Iran, investors are grappling with potential ramifications for global inflation and economic stability.
Gas Prices Hit Three-Year High
On Tuesday, UK gas prices surged to their highest level in three years, exceeding 165p a therm, a stark increase from the previous day’s rates. This spike followed a series of air strikes initiated by the US and Israel against Iranian targets, which has raised concerns over the stability of energy supplies. The last time prices reached such heights was shortly after the onset of the Ukraine war, underlining the fragility of the global energy market.
Brent crude oil also saw notable fluctuations, briefly surpassing $85 a barrel for the first time since July 2024. As a result, analysts fear that ongoing conflict in a region crucial to global energy supplies could mirror the economic upheaval caused by Russia’s invasion of Ukraine four years ago.
Stock Markets Plummet
The escalating conflict has had immediate repercussions on stock markets. By the close of trading on Tuesday, London’s FTSE 100 index fell by 2.75%, while Germany’s DAX and France’s CAC 40 saw declines of 3.44% and 3.46%, respectively. In the United States, the S&P 500 experienced a sharp drop at the opening bell, recovering slightly to finish 1.23% lower. Asian markets were not spared either, with Japan’s Nikkei index declining by 3.3% and South Korea’s Kospi dropping more than 7% after a public holiday.

The Office for Budget Responsibility in the UK has warned that the ongoing conflict could disrupt its economic forecasts, highlighting the potential for “very significant impacts” on both global and domestic economies.
Implications for Energy Costs
The surge in gas prices is particularly concerning for UK households, as these costs are likely to translate into higher energy bills. However, the immediate impact may be muted due to a price cap that is set to remain in place until July. The halt of production by QatarEnergy, a major global gas exporter, following military actions against its facilities, has further exacerbated the situation.
While oil prices have not risen as dramatically, the potential for increased costs in transportation and goods is palpable. Higher oil prices inevitably lead to increased expenses for motor fuel and transport, which could exacerbate inflationary pressures, making it less likely for central banks to consider interest rate cuts in the near future.
Shipping Crisis in the Strait of Hormuz
The Strait of Hormuz, a vital artery for the transportation of oil and gas—accounting for roughly 20% of the world’s supply—has seen a significant disruption in traffic due to escalating military tensions. Recently, several vessels have been attacked, prompting warnings from Iranian officials that ships entering the region would face serious consequences.

The cost of hiring supertankers to transport oil has reached unprecedented levels, with daily rates soaring to over $400,000—almost double what they were just a week prior. This situation is compounded by insurance companies withdrawing coverage for vessels operating in this high-risk area, prompting global shipping costs to rise.
Why it Matters
The unfolding crisis in the Middle East is not solely a regional concern; its implications resonate globally. As energy prices climb, the ripple effects will be felt in households and businesses alike, potentially leading to a new wave of inflation. With the situation remaining volatile, the economic outlook for both the UK and the wider world hangs in the balance, underscoring the interconnectedness of global energy markets and geopolitical stability. As the conflict continues, the ramifications for everyday consumers, corporate strategies, and international relations will be profound and far-reaching.