Fed September hike odds hit 81% as crude holds above $90 and energy inflation runs at 23.5% annually
Oil's war rally has pushed US inflation above 4% for the first time in three years, forcing the Fed toward a September rate decision it had hoped to avoid.
Futures traders now price an 81% probability that the Federal Reserve raises rates at its September meeting, according to CME FedWatch data, as ICE Brent crude front-month settled at $94.97/bbl and NYMEX WTI front-month at $91.22/bbl at Friday's close (2026-09-05). The repricing reflects one thing: oil is not coming down the way the Fed thought it would.4
New York Fed President John Williams said on Thursday (2026-07-09) that the market's expectation for oil prices to ease should drive a drop in overall inflation over the coming months. That view made sense when he said it. ICE Brent crude front-month crossed $100 in the week of July 20, Red Sea shipping attacks tightened physical supply, and the CME FedWatch probability of a September hike has moved sharply since.3
Williams was still publicly comfortable as recently as early July (2026-07-07), saying falling energy prices would push inflation lower while reiterating that Fed policy was "in a good place for now." Crude had other plans.2
The May CPI report shows how much ground the Fed has lost since those statements. The Consumer Price Index rose 0.5% from April and 4.2% year on year, the highest reading since April 2023 and an acceleration from the 3.8% pace recorded in April, according to BLS data. Energy prices jumped 3.9% during the month and 23.5% from a year earlier. Energy accounted for roughly 60% of the monthly increase in consumer prices.1
Core CPI, which strips out food and energy, rose just 0.2% monthly and 2.9% annually — shelter up 0.3%, food up 0.2%. Those numbers describe a stable underlying economy. The energy component is doing the damage.1
The market's inflation angst has spread beyond US Treasuries. Spiking energy costs, new US tariffs, and spending on artificial intelligence have revived investor fears about persistent price pressure. People familiar with the matter told Rigzone that officials are prepared to act in September if the inflation outlook does not improve.5
Physical market signals give little comfort to anyone expecting crude to retreat. Diamondback Energy's assessment, published in early August (2026-08-04), argued that even if Middle East tensions ease, producers must rebuild depleted stockpiles before supply can catch up with demand, creating persistent buying pressure. Saudi Aramco warned early in the conflict that unless shipping disruptions ended quickly, the consequences would prove severe. Stockpile rebuilding into a short physical market is not a quick process.6
Gold's recent moves add texture. The metal slipped on Friday (2026-07-17) as ICE Brent crude front-month topped $100 and rate-hike expectations strengthened, but it has since recovered to $4,477.20/oz at Friday's close (2026-09-05). Analysts note that gold's resilience despite increasingly hawkish monetary expectations reflects continued investor demand for diversification during heightened geopolitical stress — simultaneously pricing tighter Fed policy and buying hedges against what tighter policy might break.4
A rate increase in September would strengthen the dollar, already at 99.16 on the DXY index at Friday's close (2026-09-05), and tighten financial conditions across the economy. But rate hikes do not reopen shipping lanes through the Red Sea or rebuild the world's depleted crude stockpiles. The Fed's tools are calibrated for demand-side problems; the inflation in the May CPI print is supply-driven.1,4
The September CPI report, due before the Fed's meeting, will show whether May's 4.2% reading was a peak or a floor. Energy prices running at 23.5% annually are more than five times the core rate. If ICE Brent crude front-month holds near current levels through August, the year-on-year comparison gets no easier for the Fed — and the 81% implied probability of another hike starts to look like a floor rather than a ceiling.1,4