A Russian crude tanker bound for Asia ran aground off Oman and leaked oil over roughly 390-400 sq km, per Oman's environment agency; Greenpeace estimates about 600 sq km. The ship is a sanctioned, shadow-fleet vessel with a Cameroon flag that was later removed from registry. For a Thai SME this has no direct cost change now. Watch for shipping-insurance and sanctions tightening on shadow-fleet cargoes, which could affect crude freight rates and fuel prices over time.