US consumer inflation climbed to a fresh three-year peak in May, driven largely by rising energy costs linked to global supply disruptions, according to official data released by the Bureau of Labor Statistics.

The Consumer Price Index (CPI) increased by 4.2 percent year-on-year, rising from April’s 3.8 percent, marking the highest level recorded since April 2023. The figure came in broadly aligned with market expectations but reinforced concerns over persistent inflationary pressure in the US economy.

The latest price spike has been tied to escalating energy market tensions following geopolitical disruptions that have tightened global oil flows and pushed up fuel costs across major economies. Analysts say the ripple effect has been particularly visible in transport and household energy expenses.

Energy prices recorded a sharp 23.5 percent annual increase in May, with gasoline prices surging by 40.5 percent, underscoring the severity of cost pressures facing American consumers.

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Grocery prices also continued their upward trajectory, rising 2.7 percent year-on-year for the second consecutive month, adding further strain on household budgets already affected by prolonged inflationary cycles since the post-pandemic recovery period.

Core inflation, which strips out volatile food and energy components, rose to 2.9 percent in May from 2.8 percent in the previous month. While still closer to the Federal Reserve’s long-term target of 2 percent, the upward movement suggests underlying price pressures remain embedded in the economy.

The inflation data comes against the backdrop of broader geopolitical tensions that have disrupted global energy flows, particularly around key transit routes responsible for a significant share of global oil and gas shipments.

US political leaders have attempted to reassure markets that the current price pressures are temporary. President Donald Trump has maintained that energy costs will stabilise as geopolitical conditions improve, while expressing confidence in the prospects of a diplomatic resolution.

However, rising inflation is increasingly becoming a central issue in domestic politics, with concerns mounting ahead of the upcoming midterm elections. High living costs continue to weigh heavily on households across the country, shaping voter sentiment and economic debate.

Economists also highlight that inflation has remained elevated longer than initially expected following the pandemic, with price increases proving more persistent across multiple sectors of the economy.

Food and energy costs remain the primary drivers of consumer strain, while core inflation trends suggest that underlying demand pressures have not fully eased.

Financial markets reacted cautiously to the latest figures, with investors reassessing expectations for monetary policy direction. Analysts say the combination of strong inflation data and resilient energy prices could keep interest rates elevated for longer than previously anticipated.

The Federal Reserve continues to face a delicate balancing act between controlling inflation and maintaining economic growth, particularly as global uncertainty adds further complexity to domestic policy decisions.

Overall, the latest inflation reading underscores the ongoing challenges facing the US economy as it navigates a period of sustained price pressure, energy market volatility, and heightened geopolitical risk.