European natural gas benchmarks retreated sharply on Monday, with TTF futures losing ground as traders rapidly repriced the risk premium associated with Middle Eastern geopolitical tensions.

The decline marks a significant shift from earlier in the week, when prices had climbed to three-and-a-half-year highs amid concerns over slowing storage injection rates and potential supply disruptions.

The sell-off was driven by emerging reports that the United States and Iran have finalized a peace accord, signaling a potential resolution to the standoff that had kept shipping routes and energy flows under scrutiny.

Market participants interpreted the diplomatic breakthrough as a catalyst for stabilizing supply expectations, prompting a swift unwind of hedging positions that had been built up during the period of heightened uncertainty.

This development follows a volatile period for European energy markets, where prices had been buoyed by fears of prolonged conflict and its knock-on effects on global logistics.

The rapid correction underscores how sensitive gas valuations remain to geopolitical headlines, with sentiment swinging quickly from risk-on to risk-off as the probability of a ceasefire materialized.