Iran Courts Japan on Oil Sales as Buyers Seek Longer Waiver

The Strait of Hormuz risk is the second variable. Iran's Revolutionary Guard has been more active in the waterway this year. The U.S. has increased naval patrols. A tanker was boarded by Iranian forces in April. Another was hit by a limpet mine in June. Each incident pushes insurance premiums higher and shortens the list of carriers willing to call at Iranian ports.

For Japanese buyers, the calculation is simple: longer waiver plus insurance fix equals a viable supply line. Without both, the talks are theoretical. The August 21 deadline gives both sides roughly six weeks to resolve the insurance piece, which has been stuck for months.

Iran needs the sales. Its crude exports have fallen to about 500,000 barrels a day, down from 2.5 million before sanctions, according to tanker-tracking data. Japan was a reliable customer. A resumption would signal that the waiver system can work for other Asian buyers, including South Korea and India, which have also sought exemptions.

The U.S. position is unclear. The Trump administration has taken a hard line on Iran but has granted waivers to allies that show a clear reduction in purchases. Japan has cut imports from Iran to zero under the current waiver, which may strengthen its case for an extension. The State Department did not respond to a request for comment.

A longer waiver would not guarantee a deal. Japanese refiners have invested in alternative supply from Saudi Arabia, the UAE, and Iraq since 2018. Restarting Iranian crude purchases would mean renegotiating term contracts, adjusting refinery configurations, and rebuilding relationships that took years to dismantle. The insurance hurdle is the immediate one. It is not the only one.