International crude oil prices rallied sharply on April 28, 2026, following the UAE’s shock announcement of its withdrawal from OPEC and OPEC+, driving energy stocks higher on Wall Street while broader markets showed mixed performance.

The oil price surge was driven by two key factors: first, the UAE’s decision to exit OPEC+ and gradually increase production, disrupting the existing output coordination framework and adding supply-side uncertainty. Second, the ongoing Iran war has heightened tensions in the Strait of Hormuz, through which approximately one-fifth of global oil shipments pass.

AP News reported that Wall Street showed a split performance, with energy stocks benefiting significantly from the oil price rally while other sectors faced pressure. Politico cited energy experts warning that “there’s a day of reckoning coming,” with consumers expected to face another spike in gasoline prices.

Meanwhile, technology megacaps are facing their first earnings test since the US-Iran war sent oil prices soaring. CNBC noted this is the first time tech hyperscalers have reported to Wall Street under these conditions. Reuters reported that Big Tech AI spending is set to hit $600 billion, with investors closely scrutinizing whether these massive investments are generating meaningful returns.

China’s Sinopec reported first-quarter results on the same day, with net income rising 28% year-on-year, benefiting from higher oil prices and stable fuel sales.

Analysts warned that if the Strait of Hormuz situation deteriorates further, compounded by the supply shock from the UAE’s OPEC+ exit, international oil prices could face even greater upward pressure, potentially driving up global inflation expectations and influencing central bank monetary policy decisions worldwide.

Source: AP News, CNBC, OilPrice.com