SANAA, Yemen — Since the UN-brokered truce expired on October 2, the Houthi rebels have launched drone attacks on civilian oil ports in oil-rich provinces outside their territorial control. The Houthi rebels claimed responsibility for their first drone attack since the truce expired by targeting a Greek oil tanker, the Nissos Kea, as it approached the Ash Shihr oil port in the eastern province of Hadhramout on October 21.