This is update on our revised estimate of the total amount of oil spilled from the Deepwater Horizon spill in the Gulf of Mexico.

Our original calculation was based on the approach used by SkyTruth, which is explained below.

A more accurate assessment of recent satellite images reveals that the volume and therefore the rate of the spill must be much higher than previously predicted. The current estimate is 26,000 barrels (1,092,000 gallons) per day.

Read how Dr. Ian MacDonald and SkyTruth made this calculation here.

Here’s a summary of our prior estimate.