You are using an outdated browser For a better experience using this site, please upgrade to a modern web browser. Subscribe Get Daily Email Subscribe --> Contact Us Sign in Home News & Features Compliance Costs Bunker Prices Bunker Intelligence EMEA News Latest Features World Americas EMEA Asia/Pacific Home News & Features EMEA ANALYSIS: Calculating the Iran War's Impact on Biofuel Compliance Costs ANALYSIS: Calculating the Iran War's Impact on Biofuel Compliance Costs by Jack Jordan, Editorial Lead - Insights, Ship & Bunker Monday May 18, 2026 Tweet Follow @shipandbunker Intra-EU Rotterdam B30 now costs  $127.74/mt less than VLSFO Premium of $32.88/mt for EU to non-EU voyage Falling biofuel premium to deliver lower FuelEU pooling costs The ongoing conflict in the Middle East has delivered surging bunker prices , but also a significant change in calculations for those comparing total compliance costs for conventional versus alternative fuels. Prices for biofuel blends have been much more resistant to the Middle East supply shock than those for conventional bunkers, with biofuel production largely situated outside the conflict zone. The average price for VLSFO in Rotterdam this month has been 73% higher than the pre-war average in February , while B30-VLSFO prices at the Dutch port saw just a 31.5% gain over the same period. This is delivering a significant change to how biofuel blends compare to conventional bunkers, when the full cost of compliance with the EU emissions trading system and FuelEU Maritime is added to the cost of the fuel. Taking in all compliance costs, Ship & Bunker estimates Rotterdam B30 cost $127.74/mt less than VLSFO on an intra-EU voyage so far this month, compared to a $12.40/mt discount in February. On a voyage between the EU and elsewhere B30 came at a $32.88/mt premium this month, down from $140.17/mt in February. Calculating the Change Calculating the change in costs requires analysing the underlying fuel price, the