Internal ExxonMobil documents obtained through an Freedom of Information Act request by Greenpeace shows that the oil giant misled the public about the degree to which the spill of more than 200,000 galllons of tar sands oil in Arkansas had contaminated local waterways.

Following the rupture of the Pegasus pipeline in the town of Mayflower on March 29, area residents were increasingly concerned that Lake Conway had been contaminated. Despite overwhelming evidence that tar sands oil was in the lake, ExxonMobil publicly said this was not the case.

A blog post by Greenpeace's Jesse Coleman explains:

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