Iranian President Masoud Pezeshkian and Parliament Speaker Mohammad Bagher Qalibaf said Tehran would take reciprocal steps and fully reopen the Strait of Hormuz only if the United States fulfilled commitments under the June 18 Islamabad memorandum. The agreement, mediated by Pakistan and Qatar, covered an immediate ceasefire, a 60-day negotiation period, navigation through the strait and further talks; Iran says Washington must provide sanctions relief, release frozen Iranian assets and end military operations against Iran and its regional allies. Qalibaf said Iran does not reject diplomacy but regards negotiations as part of its broader struggle, while Pezeshkian offered immediate reciprocity if Washington returned to its commitments. The arrangement broke down as U.S.-Iran strikes resumed after nearly a month, while Tehran maintained navigation restrictions despite late-August discussions with Oman over transit arrangements that did not constitute a full reopening. Oil prices fluctuated as traders weighed supply-disruption risks against continued flows, including 17 million barrels transiting the waterway Monday.