A surge in oil prices toward $100 per barrel would likely push U.S. headline inflation higher in the near term, according to Barclays analysts. The bank said oil at $100 would be "undoubtedly inflationary at the headline level," but second-order effects on broader inflation would be limited unless prices stay high for an extended period.

Barclays estimates that a 10% sustained increase in crude oil prices could add roughly 0.2 percentage points to headline CPI within one to two months, mainly through higher gasoline prices. However, the pass-through to core inflation is expected to be smaller and slower, as energy price shocks typically affect headline prices more directly than underlying inflation.

The current situation also differs from the 2022 oil spike following Russia's invasion of Ukraine. At that time, global supply chains were already strained and governments were injecting fiscal stimulus into the economy, amplifying inflation pressures. Today, Barclays says the macro backdrop is softer, with cooling consumer spending and more slack in the U.S. labor market.