Iran’s Parliament Speaker Mohammad Bagher Qalibaf has delivered a sharper energy warning to Washington, arguing that the U.S. has already used many of its easiest oil-market tools while Iran still holds major strategic levers in reserve. The message came as markets steadied on reports that Tehran had floated a new proposal on reopening the Strait of Hormuz and as Abbas Araghchi arrived in Russia to widen Iran’s diplomatic outreach.