Daily hire rates on the Persian Gulf-to-East Asia supertanker run crossed $1.4 million this week — a 40% jump in the first seven days of October that produced the second record-setting print in five weeks, according to data compiled by Bloomberg.

The September figure on the same lane, above $1 million per day between the Persian Gulf and China, had already set an all-time high. Bloomberg's freight tracker logged the new peak at more than $1.4 million per day on the Gulf-to-East Asia trip, eclipsing its own September record before the quarter turned.

The move lands well beyond shipping desks. The Persian Gulf-to-Asia corridor carries the lion's share of seaborne crude moving toward the world's largest demand centre, and freight is now absorbing a larger share of the delivered cost of every Middle East barrel that touches the route.

What's driving the spike?

The Iran war has reshuffled established crude trade patterns across the region, tying up more tankers in inefficient and lengthy voyages. Cargoes that would have moved point-to-point inside the Gulf and out through the Strait of Hormuz now burn extra miles and sit out longer waiting patterns between discharge and the next load.

Each rerouted vessel is, in effect, pulled from the spot pool. The longer voyages don't simply add days — they strip available tonnage out of a market that was already running close to capacity. Charterers waiting on specific cargoes face longer lead times, with knock-on effects slowing the rotation from loading terminal to refinery gate.

How steep is the climb?

Bloomberg's tally captures the acceleration in three prints:

• September: above $1 million per day on the Gulf-to-China route — a prior all-time high
• First week of October: rates climbed another 40%
• This week: more than $1.4 million per day on the Gulf-to-East Asia trip

The 40% move inside seven days tells traders the market is still moving, not settling. Spikes of that magnitude rarely print twice in consecutive monthly windows without a structural trigger — and in this case the trigger is conflict, not a fleeting trade.

What does it mean for crude flows?

When shipping rates jump on the world's busiest crude lane, importers notice at both the loading terminal and the refinery gate. Higher freight rides straight through to the landed crude price for Asian refiners, narrowing the price differential they can absorb against competing grades.

There is a secondary effect on the voyage itself. Every additional day at sea means more fuel burned, more crew time and more wear on hull and machinery. The same dynamic lifting the daily hire rate is also raising the operating cost of each charter — a double hit on the economics of moving Gulf barrels.

What to watch next

The next weekly freight print from the Baltic Exchange's dirty-tanker assessments and any new routing orders, sanctions designations or naval-escort announcements tied to the Iran conflict will set the next directional signal. A reading held near $1.4 million would suggest the market has found a new floor. A third record-setting print inside the same quarter would tell charterers the squeeze is still tightening.