On July 14, 2026, global energy markets and expectations for monetary policy both saw violent shocks at the same time. Driven by a sudden escalation of the military conflict between the US and Iran, international oil prices recorded their largest single-day increase in nearly a month. According to Gate market data, the latest price of WTI crude is 79.79, with a 24-hour rise of 8.84%. During intraday trading, it ranged between 72.65 and 80.43. Brent crude is at 84.74, up 8.46% over the past 24 hours. At the same time, market expectations for the Federal Reserve to raise rates surged overnight—the implied probability of a July rate hike embedded in the money market climbed from under 10% to about 50%.

This price volatility is not an isolated event. Over the past three weeks, the newly signed memorandum of understanding between the US and Iran has effectively broken down. The two sides’ military actions have escalated from sporadic mutual strikes to ongoing armed conflict. A clear transmission chain is forming between oil prices and interest-rate expectations: geopolitical shocks push up energy prices, higher energy prices lift inflation expectations, and inflation expectations force the Federal Reserve to reassess the direction of monetary policy. This article will follow this transmission chain, breaking down the logic and data basis of each link one by one. Hormuz Strait: How a single strait can shift global energy pricing The immediate trigger for the oil price surge on July 14 is— is America…