USGS Director Dr. Marcia McNutt today announced that the National Incident Command’s Flow Rate Technical Group (FRTG) has developed an independent, preliminary estimate of the amount of oil flowing from BP’s leaking oil well.
...Based on three separate methodologies, outlined below, the independent analysis of the Flow Rate Technical Group has determined that the overall best initial estimate for the lower and upper boundaries of flow rates of oil is in the range of 12,000 and 19,000 barrels per day.
via www.deepwaterhorizonresponse.com
At 12,000 barrels per day, it would take only 21 days to reach the level of the Exxon Valdez spill (250,000 barrels).