One barrel of oil = 42 US gallons

100,000 x 42 = 4,200,000 gallons per day flowing from the blowout “preventer”.

4,200,000 x 63 days = 264,600,000 (two hundred sixty four million, six hundred thousand) gallons of oil.  And counting.

Possible plug date:  August 2010.  Maybe.  If they’re lucky.