There is currently zero confidence in BP following the fiasco when the Deepwater Horizon oil rig sank on the 20th of April after an explosion, killing 11 workers. Deepwater Horizon has become the United States' largest oil spill in history — an estimated equivalent of 528,000 to 836,000 barrels spilled. As a result, the Pensacola soft white sand beaches, which hundreds of thousands of tourists visit every year to surf, swim and sunbathe, are inundated with soft globules of tar. The previous largest US spill was the Exxon Valdez in Alaska in 1989 when around 260,000 barrels were lost.