The Ocean Ranger was one of the largest semi-submersible oil platforms, constructed in Japan in 1977 and deployed off Newfoundland, Canada. In February 1982, it sank during a severe storm, claiming the lives of all 84 crew members. This disaster spotlighted severe safety deficiencies in oil platform operations, prompting major regulatory overhauls. The incident, marked by its human toll and technical failures, led to enhanced safety measures and protocols in the oil extraction industry worldwide.