BP believes that knowing how much oil is escaping the well in the Gulf of Mexico is neither possible nor necessary. This is refuted in an op-ed in the NYT, which reports some staggering numbers in regards to the amount of oil spewing out. At least two of the authors are remote-sensing experts.
…[O]ur preliminary estimates indicate that the discharge is at least 40,000 barrels per day and could be as much as 100,000 barrels. Certainly, our assessments suggest that BP’s stated worst-case estimate of 60,000 barrels has been occurring all along.
From the New York TImes.