Scientists: Most of leaked oil gone

Some three-quarters of the oil from the BP spill is has been captured, burned off, evaporated or broken down. That's according to a federal report released today based on estimates from the National Oceanic and Atmospheric Administration and the Department of the Interior. The figure is based on 4.9 million barrels of oil released from the well between April 20 and July 15, when the ruptured Deepwater Horizon well was capped. Heavy mud was packed into the well between Tuesday and today. (Sources: Multiple, including NOAA, USAToday, Bloomberg, 08/04/10)