Oil prices have fallen sharply after Trump postponed attacks on Iranian energy infrastructure for five days. Specifically, Brent crude—the European benchmark—dropped around 9% on Monday, settling at approximately $97 a barrel. Just minutes after the US president's announcement, the price of oil plummeted to a low of $91.89 a barrel, after opening at $108.42. Meanwhile, West Texas Intermediate (WTI) crude, the US benchmark, fell to $89.27, a drop of nearly 9%. The same trend was observed this morning with natural gas prices. After rising sharply throughout the morning, Trump's announcement this afternoon, in which he asserted that "very positive and productive" talks had taken place over the past two days regarding the resolution of hostilities in the Middle East, brought the price down significantly. Specifically, the price of natural gas for one-month delivery on the Dutch TTF market—the benchmark in Europe—fell this Monday to 56 euros per megawatt hour (MWh), representing a drop of more than 5%. As for the stock markets, the announcement boosted the main indices in a session of high volatility. The Ibex 35—the Spanish benchmark index—closed with a gain of 1.04%, reaching 16,888.20 points. Among the stocks on the Madrid exchange that rose the most were ArcelorMittal (5.19%) and IAG (4.61%). The financial sector also contributed to the rise, with Santander leading the way with a 4.05% increase in bank share prices. Meanwhile, Repsol's shares fell by nearly 7% today following the drop in oil prices.