Saudi Pipeline Shutdown and Houthi Gains Revive Iran War Economic Front

Saudi Arabia has shut down its East-West oil pipeline after a drone attack from Iraq, and Yemen's Houthi rebels have seized Mayun island at the mouth of the Red Sea. This move has reopened the economic front in the US-Iran war as Brent crude traded above $103 a barrel on September 17.

The East-West pipeline had been moving 4-5 million barrels per day, roughly 4-5 percent of global supply, after Riyadh doubled Red Sea exports to offset Hormuz disruption. Saudi Arabia's Ministry of Energy called the shutdown precautionary; the Foreign Ministry said the drones came from Iraq.

Houthi gains in Yemen have also intensified criticism that President Donald Trump's stop-start strategy is prolonging a war that began in February. The twin setbacks removed the two main workarounds that had kept Saudi crude moving while the Strait of Hormuz remained contested.