Since late February 2026, the Strait of Hormuz has been largely inaccessible to commercial shipping, resulting in an estimated 1,550 vessels, carrying around 20,000 seafarers, being either unable to transit or choosing to remain at anchor in the Arabian Gulf, Gulf of Oman, and surrounding areas. This prolonged idling period introduces considerable risks related to fuel quality degradation. Stored fuel, especially in warm climates, can experience microbial growth, sediment formation, and oxidation, potentially leading to engine damage or operational failures when vessels eventually resume activity.
For freight forwarders and operations managers, this situation implies potential delays and increased costs. Vessels may require extensive fuel treatment or even de-bunkering and re-bunkering before they can safely depart, impacting schedule reliability and transit times. Furthermore, the risk of engine issues due to poor fuel quality could lead to breakdowns, further disrupting supply chains and incurring repair expenses. Forwarders should anticipate potential surcharges related to fuel management and maintenance, and factor in longer lead times for shipments originating from or transiting through the affected region.
Looking ahead, vessel operators will need to implement stringent fuel quality management protocols, including regular testing, additive treatments, and potentially fuel purification systems, to mitigate these risks. The duration of the Strait of Hormuz closure will dictate the long-term impact on vessel readiness and operational costs.
