Oil Prices Fall as Global Stocks Rally

Oil prices fell on Sept. 21, 2026, as improved Saudi crude exports and hopes for renewed U.S.–Iran diplomacy eased supply fears. This triggered a relief rally in global stocks, lower Treasury yields, and gains in AI-linked and chipmaker shares.

Saudi Supply and Export Routes

Satellite imagery and flow analytics showed Saudi shipments through or around the Strait of Hormuz averaged about 2.8–2.9 million barrels per day over the six days ending Sept. 20, up from roughly 0.7 million barrels per day in August. Saudi crude exports rose to more than 4 million barrels per day in September from about 2.4 million in August.

Saudi officials expect to restore roughly half the East-West pipeline’s normal flows within days, with full capacity potentially weeks away. Meanwhile, Saudi Aramco has increased crude shipments via alternative routes, including ship-to-ship transfers off Oman’s Sohar port and higher loadings at Ras Tanura inside the Gulf for transfer outside the Strait. Despite these efforts, tanker traffic through the Strait of Hormuz remains below pre-conflict levels.

Geopolitical risks persist as Houthi missile and drone attacks on energy infrastructure continue, along with pressure on Red Sea shipping. The U.S. State Department has issued a travel alert for parts of the Middle East, and President Donald Trump’s stated willingness to meet Iran’s president at the U.N. General Assembly is seen as a potential diplomatic opening rather than a concluded agreement.

Markets Rally on Lower Oil Prices

Brent November futures settled at $100.34 a barrel and West Texas Intermediate at $95.78, marking 12-day lows and declines of about 3.4% and 4.5%, respectively. Brent’s four-day losing streak is its longest since June.

Major equity benchmarks advanced alongside the slide in energy prices and easing yields. The S&P 500 rose about 0.6% and the Nasdaq Composite about 0.9%, led by U.S. tech, AI-linked, and chipmaker stocks, with some names near record levels as investors rotated back into higher-growth sectors.

Ten-year U.S. Treasury yields eased by roughly 3–4 basis points to about 4.96%, while European benchmark yields also moved lower. Lower energy prices have eased inflation anxiety and supported demand for risk assets. Asian currencies were mixed but noted as having potential to strengthen if U.S.–Iran talks resume. Analysts cautioned that constrained traffic through Hormuz and ongoing regional attacks could quickly reprice risk if conditions deteriorate.