Fed's inflation problem deepens as energy costs seep into core price data
Energy prices drove US CPI above 4% in May, complicating the Fed's rate path as core inflation remains sticky.
The VIX jumped nearly 12% to 18.70 early Friday (2026-07-24), a move that captures the growing unease over whether the Federal Reserve can hold rates steady as energy-driven inflation stays elevated. [live prices]1 New York Fed President John Williams, speaking on Tuesday (2026-07-07), said he expects falling energy prices to drive overall inflation lower in the months ahead and described policy as "in a good place for now."5 Markets are not entirely convinced.
US consumer prices climbed above 4% for the first time in three years in May, with the Consumer Price Index rising 0.5% from April and 4.2% from a year earlier, the Bureau of Labor Statistics reported on Wednesday (2026-06-10).4 The annual rate matched economists' expectations but marked the highest reading since April 2023, up from the 3.8% rate recorded the prior month.4
Energy prices jumped 3.9% in May and were up 23.5% from a year ago, accounting for roughly 60% of the monthly increase in consumer prices, the BLS data showed.4 ICE Brent crude front-month traded at $99.73/bbl early Friday (2026-07-24), with NYMEX WTI front-month at $91.52/bbl. [live prices]
Core CPI, which strips out food and energy, rose 0.2% in May and 2.9% annually.4 Food prices increased 0.2% while shelter costs rose 0.3%, and core commodities prices actually declined 0.1%, suggesting that pressures outside of energy are being contained for now.4
Williams' optimism sets him apart from his Kansas City counterpart. Federal Reserve Bank of Kansas City President Jeffrey Schmid warned on Friday (2026-05-29) that the energy shock "cannot simply be dismissed as transitory," given already-elevated baseline inflation.3 Schmid noted that inflation has stalled near 3% and remained above the Fed's 2% target for a long time, making it difficult for the central bank to look through the energy shock in its rate decisions.3
The Minneapolis Fed tracks implied probabilities, derived from derivatives prices, that American inflation will average above 3% or below 1% over the next five years — a wide range of outcomes that reflects how divided markets are on whether the energy surge will prove durable.1
The IMF's rule of thumb is that a 10% rise in oil prices cuts global GDP growth by 0.15 percentage points and raises inflation by 0.4 points the following year.2 The European Central Bank estimates that a 10% increase in oil prices adds 0.4 percentage points to inflation directly, plus another 0.2 points indirectly over three years, as businesses pass higher costs to consumers.2
For energy-importing Asian economies the transmission is faster and more acute. India spends about 3% of GDP on foreign oil annually and has barely 20 to 25 days of usable stocks; Thailand spends nearly 5% of GDP on oil imports.2 A Dallas Fed study suggests that a 10% increase in crude prices raises retail gasoline prices by 5%.2
The risk sitting beneath Williams' optimistic read is that energy prices prove stickier than expected and eventually feed into wages and shelter costs. American and British labour markets are tight enough that they would have central bankers worried even if inflation had been under control for the past two years.1
If core CPI prints above 3% in coming months, Schmid's warning gains weight and the transitory argument loses its credibility with the committee.3