Why are jet fuel prices jumping now?

Supply risks linked to the Iran war, tighter shipping routes, and fewer prompt export barrels have reduced middle distillate availability. Diesel has turned very tight, and jet often follows because both come from the same cut in refining. Risk premiums on cargoes and rerouting delays add extra cost in the near term.

What is the Asia diesel premium and why does it matter?

It is the cash premium buyers pay over benchmarks for 10-ppm sulphur diesel in Asia. A record level signals acute near-term scarcity. When diesel is tight, refineries prioritize it, pulling supply from jet and heating fuel. This usually lifts jet prices and freight costs, affecting airfares and transport rates.

How could this impact Australian airline fuel costs and fares?

Higher jet prices raise airline operating costs. Carriers may respond with fuel surcharges, selective fare increases, or capacity tweaks to protect margins. Long-haul and regional routes can see earlier adjustments. The scale depends on hedging, competition on each route, and how quickly wholesale prices filter into contracts.

What should investors in Australia watch over the next month?

Track Singapore jet cracks versus Brent, the jet-to-diesel spread, Asia’s diesel cash premium, refinery outage news, and airline guidance on hedging. Also monitor Australian CPI components tied to transport and freight. If spreads and premiums ease together, pressure on fares and logistics should begin to moderate.

Global Market Insights

Jet Fuel Prices Jump March 7 as Iran War Squeezes Supply; Asia Diesel at Record

ByHuzaifa Zahoor March 6, 2026March 6, 2026

Jet fuel prices are spiking as the Iran war squeezes supply across the Middle East and Asia. LSEG data shows Asia’s 10-ppm diesel cash premium hitting a record, a clear signal of tight middle distillates. For Australian investors, higher airline fuel costs, pricier freight, and stickier inflation can pressure earnings and valuations. We outline what is driving the surge, why it matters for ASX sectors and rates, and what indicators to watch to protect portfolios in the weeks ahead.