The latest Fuel Oil Bunker Analysis and Advisory Service (FOBAS) report from Lloyd's Register for the first half of 2026 identifies a growing concern regarding bunker fuel quality. The report highlights that some of the most significant operational disruptions for vessels are stemming from fuels that technically comply with the ISO 8217 specification. However, these fuels exhibit underlying stability or compatibility problems, or contain non-conventional blend components, which are only detectable through more advanced and detailed testing.
This issue became particularly apparent in March and April of this year, when multiple vessels experienced operational difficulties after bunkering at the Port of Singapore. Subsequent forensic analysis of these problematic fuels revealed elevated concentrations of Estonian shale oil, indicating a potential source of the quality issues.
For freight forwarders and operations managers, this development signals an increased risk of vessel delays and potential damage to ship engines, even when seemingly compliant fuels are procured. The need for more rigorous and advanced fuel testing beyond standard ISO 8217 checks becomes critical to mitigate these risks. Forwarders should advise shippers on potential schedule impacts and consider clauses in contracts that account for fuel-related disruptions, as these incidents can lead to unforeseen costs and extended transit times.
