Sea Star was a supertanker that spilled some 115,000 tons of crude oil into the Gulf of Oman on December 19, 1972, after colliding with the Brazilian tanker Horta Barbosa. After the collision both vessels caught fire and were abandoned by their crews. Twelve of the crew members died in the fire, which burned for five days. Recovery of Sea Star was attempted before the fires on board were extinguished, but following several explosions the vessel sank in the Gulf of Oman on December 19, 1972.