U.S. Inflation Reaches 3-Year High as Energy Costs Surge

Inflation reached 4.2% annually in May, the highest rate in three years, according to Labor Department data released this week.

Energy prices drove the bulk of the increase. The department found that rising energy costs accounted for more than 60% of the overall inflation gain. Gasoline, heating oil, and electricity all contributed to the climb.

When economists strip out the volatile food and energy sectors, core inflation registered at 2.9% annually. This measure provides a view of underlying price pressures in the economy apart from commodities subject to sharp swings.

The report comes amid elevated geopolitical tensions affecting global energy supplies. Analysts including Roben Farzad, principal at Full Disclosure, characterized the inflation figures as evidence that energy market disruptions have broader economic consequences beyond the energy sector itself.

The three-year high marks a notable shift from the inflation readings of recent months. Economists monitor both headline and core inflation closely, as core figures help distinguish between temporary commodity spikes and sustained price growth across the broader economy.