Horizonhd — Deepwater

The was an ultra-deepwater, semi-submersible offshore drilling rig that became the center of the largest accidental marine oil spill in history. The Disaster

The leak continued for before being successfully capped on July 15, 2010. Deepwater Horizon: Effect on Marine Mammals and Sea Turtles

On , while drilling an exploratory well at the Macondo Prospect in the Gulf of Mexico, a surge of natural gas caused a catastrophic explosion. The incident tragically killed 11 workers and injured 17 others. Two days later, the rig sank into nearly mile-deep water, leading to an uncontrollable release of oil from the seafloor. Impact and Scale