Overview
- Houthis sent warnings to shipping firms and on July 21 declared a naval blockade of Saudi ports and the Bab el‑Mandeb Strait, prompting immediate threats to vessels calling at Saudi Red Sea terminals.
- Maritime data and reporting show at least two Saudi crude tankers made U‑turns or diverted to longer routes such as the Suez Canal or around the Cape of Good Hope after the Houthi warning.
- Market reaction was uneven, with some venues reporting Brent briefly above $90 per barrel while other prices retraced to lower levels, reflecting uncertainty about how long disruptions will last.
- Saudi Aramco has been moving record volumes through Yanbu to replace flows lost via the Strait of Hormuz, but Yanbu and Suez capacity limits, higher insurance costs, and crew hesitancy are constraining alternatives.
- If Bab el‑Mandeb and Hormuz stay threatened, the combined choke points could cut a material share of seaborne crude exports, raise fuel costs for consumers and shipping, and force longer, costlier supply routes that could tighten markets over time.