Heck of a job BP.

The Picture Of Inaccuracy: The Evolving Estimates Of BP's Oil Leak

On May 5, BP CEO Tony Hayward told Congress in a closed-door briefing that, in the worst-case scenario, the oil well in the Gulf Coast would leak 60,000 barrels of oil per day.

Back then, official government estimates said the well was leaking 5,000 barrels of oil every day. Those estimates have since been repeatedly revised, most recently to reflect an estimated leakage of 35,000-60,000 barrels of oil per day.

Here's a look at how the estimates evolved over time: