What happened
Houthi military spokesman Yahya Saree on Thursday warned "all employees, including experts, engineers and workers at all Saudi oil facilities" to avoid "locations that represent targets for our forces." He named no facility and set no deadline.
The warning followed a night of escalation. The Saudi-led coalition said it destroyed 82 Houthi military targets across Saada, Hodeidah, Jawf and Marib, including missile stores. On Thursday it said it intercepted two ballistic missiles fired at Riyadh, and civil defense said falling debris damaged a kindergarten and a clinic. The Houthis claim a hit on King Khalid airport, which Saudi Arabia has not confirmed. Diplomats in Riyadh were told to shelter in place.
Immediate impact
The threat lands on the bypass. A Kpler note on October 6, reported by Reuters, put exports from the Gulf of Oman coast and the Red Sea at 6.7M b/d, more than double pre-war, and Saudi Arabia's East-West pipeline to Yanbu is a core part of that. The line was shut for 11 days after drones from Iraq hit pumping stations on September 10-11, and the coalition intercepted six Houthi missiles aimed at Yanbu and Taif on September 24. Reuters also cites a senior regional official close to Tehran saying Iran would treat "any attempt to open new routes for oil exports" as hostile.
What to watch
Saudi or Aramco confirmation of damage at Yanbu or a pumping station, or a pause in Yanbu loadings. Either would move the risk from shipping lanes to the bypass itself.
Sources: Houthi statement via CBS News, Euronews and Gulf News, October 8; coalition via SPA and Arab News, October 8; Riyadh Civil Defense via AFP, October 8; Kpler and regional official via Reuters, October 7-8.