US naval enforcement of the blockade on Iranian ports and the Strait of Hormuz, reimposed July 14, 2026, after the collapse of a June memorandum of understanding, continues with CENTCOM reporting over 135 vessels redirected, multiple ships disabled, and IRGC-linked tankers destroyed as of mid-October. Iranian seaborne crude exports have remained at zero since September under the restrictions, while Tehran has issued conditions for reopening the waterway and rejected recent US responses amid renewed attacks on shipping. Ongoing US sanctions targeting shadow fleet vessels and diplomatic exchanges have not yet produced an agreement to lift the measures, with trader assessments reflecting the pace of any potential breakthrough in talks between Washington and Tehran.