G7 leaders agreed on Friday to release 100 million barrels of diesel and crude after US pressure on Europe, with supplies squeezed by Iran's restrictions on shipping through the Strait of Hormuz.
The war has choked shipping through Hormuz and disrupted Gulf exports. Qatar said it has continued to mediate between Washington and Tehran, warning that the fallout has now affected multiple sectors and not just energy.
Months into the war with Iran, Gulf exporters are finding ways to keep oil and gas moving, but crossing Hormuz remains risky and some customers are still missing contracted cargoes.
Parliament speaker Ghalibaf said if Iran cannot sell oil, "no one in the region will sell oil," as the IRGC called Trump "a big liar," said US bases were the "only source of insecurity" in the region and warned new weapons were being prepared for the battlefield.
"If the necessary conditions are met, the strait can be reopened, and normal maritime traffic can resume within seven days," Iranian Foreign Minister Abbas Araghchi said on Friday.