Brent crude pushed above $90 a barrel in late July, injecting fresh uncertainty into the European Central Bank's inflation outlook and keeping a September rate hike firmly on the table. The ECB held rates steady at its July meeting but left the door open for a move next month, and the oil rally is now testing that resolve.
The oil price rebound
After peaking near $118 a barrel, Brent had fallen to about $94 by the time of the ECB's July 9 meeting and then hovered around that level through late May, according to the meeting account. But the recent climb above $90 marks a reversal that could complicate the disinflation narrative the ECB has been relying on. Oil prices averaged $85 in June, down $22 from May and $32 from the April peak — a drop that had supported the case for holding off on further tightening. Now that trend is reversing.
ECB's cautious stance
The ECB wants to stay on its disinflation track without being blindsided by a fresh energy impulse. Energy swings affect headline inflation directly, but they also shape expectations, wage bargaining, and the central bank's tolerance for waiting. The July meeting account noted that the earlier oil decline had helped bring down headline CPI, but policymakers are wary that a renewed spike could undo that progress.
Market expectations
Markets are already pricing in a 25-basis-point hike in September, with a second move later in the year. The probability of a third 25-basis-point increase by the end of 2026 stands at 84%. That's a lot of tightening baked into the curve, and the oil price jump only reinforces those bets. The ECB's next decision will hinge on whether the energy rally proves temporary or becomes entrenched.
The ECB's September meeting is now the focal point. Policymakers will have fresh staff projections to work with, and the oil price trajectory will be a key input. If Brent stays above $90, the case for a hike strengthens. If it retreats, the doves may have room to argue for patience. Either way, the central bank's next move will be shaped by a barrel of crude.
