Washington:
The oil leaking in the Gulf of Mexico could have powered 68,000 cars, 6,100 trucks or 3,100 ships for a year.
James J Corbett, a professor of marine policy at the University of Delaware, updates the numbers on his website based on the daily average estimated spill rate of 30,000 barrels.
The science team analysing the spill has estimated that it ranged between 20,000 and 40,000 barrels a day, nearly double the original estimate.