Oil tankers reroute as Houthi Red Sea blockade fears grow; Asian firms eye Suez Canal alternatives

The escalating tensions between the U.S. and Iran, coupled with threats from Yemen's Houthi rebels to blockade the Red Sea, are causing significant disruptions in global oil transport. Several oil tankers have already altered their course, and Asian refiners are reportedly exploring options to bypass the Suez Canal, a critical artery for global trade.

The Houthi rebels, who control parts of Yemen, have claimed responsibility for targeting vessels linked to Saudi Arabia in the Bab el-Mandeb Strait, a key chokepoint connecting the Red Sea to the Gulf of Aden. They have warned shipping companies that vessels loading or unloading at Saudi ports could be subject to sanctions or attacks. While the Houthis claim to be targeting only Saudi-related ships, their past actions during the Gaza conflict involved attacks on vessels not directly involved in the dispute, raising concerns about broader maritime safety.

In response to the growing threats, shipping companies are considering rerouting vessels around the Cape of Good Hope, the southern tip of Africa. This alternative route is significantly longer, adding anywhere from one to four weeks to transit times, and inevitably increases transportation and fuel costs. The potential simultaneous disruption of both the Strait of Hormuz and the Bab el-Mandeb Strait is particularly alarming, as these waterways are vital for transporting a substantial portion of the world's crude oil. Analysts estimate that a complete blockage could impact approximately 25% of global crude oil supply.

South Korea's HD Hyundai Oilbank is reportedly seeking very large crude carriers (VLCCs) and examining alternative transport methods, including using the SUMED pipeline, which connects the Red Sea to the Mediterranean. This pipeline allows for the partial transfer of oil from VLCCs, which cannot transit the Suez Canal directly, to smaller vessels on the other side. The potential impact on global energy markets is substantial, with reports suggesting that the number of vessels passing through the Bab el-Mandeb Strait could be halved if the blockade is enforced. International Energy Agency (IEA) Executive Director Fatih Birol warned that the threats to the strait are exacerbating energy security concerns and market uncertainty, leading to a rise in international oil prices.

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The threats to the Bab el-Mandeb Strait are exacerbating energy security concerns and market uncertainty.