Saudi Tankers U-Turn as Houthi Threats Push Brent Past $91
Expanding Houthi militant threats to Saudi ports have forced crude tankers to reverse course in the Red Sea, pushing Brent above $91 a barrel as a dual chokepoint crisis threatens global oil supplies.
Asian-chartered tankers carrying Saudi crude to India and China have reversed course in the Red Sea after Yemen’s Houthi rebels emailed global shipping companies with a direct warning. The rebels threatened to strike any vessel loading cargo at Saudi ports, prompting immediate U-turns by the Rodos and Xin Long Yang tankers and pushing ICE Brent above $91 per barrel.
The disruption compounds a recent US-Iran military escalation in the Persian Gulf, where the closure of the Strait of Hormuz has already forced a major rerouting of crude. With its primary eastern export route blocked, Saudi Arabia is now entirely dependent on the 7 million b/d East-West pipeline to move its eastern production toward global markets.
This dependency has exposed a severe infrastructure bottleneck at Yanbu, the pipeline's Red Sea endpoint. Port limitations cap export capacity at Yanbu between 4 million and 4.5 million b/d, with an additional 1.5 million to 2 million b/d forced to flow to Aramco's own Red Sea refineries. Consequently, all of Saudi Arabia's 4 million b/d of crude exports are currently funneled through this single vulnerable port.
Evidence suggests Aramco anticipated the Red Sea closure. In the week ending July 17, the state producer loaded an unprecedented 5.9 million b/d of crude at Yanbu, surpassing the port's theoretical limits. According to Bloomberg, this represented a 50% surge compared to the March-June average, indicating a rush to evacuate oil before the Houthi threat materialized.
For institutional investors and physical traders, the convergence of threats at Hormuz and Yanbu represents a structural shift in global supply dynamics. A double risk premium is now embedded in Brent prices, as the market absorbs the reality that millions of barrels of Saudi crude are temporarily stranded or forced into costly detours.
The systemic strain on global crude logistics extends beyond the Middle East. The Caspian Pipeline Consortium recently suspended loadings at its Black Sea terminal after two tankers were attacked, jeopardizing the 1.6 million b/d route that handles 80% of Kazakhstan's exports. Simultaneously, the Panama Canal Authority has reduced daily transits to 34 vessels, creating secondary shipping congestion.
With Asian buyers already scrambling for alternative supplies, the market is bracing for sustained volatility. Unless diplomatic interventions quickly secure the Red Sea and Persian Gulf transit corridors, the physical tightness underlying the $91 Brent benchmark is unlikely to ease.
