What Oil?

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Corexit is a product line of solvents primarily used as a dispersant for 
breaking up oil slicks. It is produced by Nalco Holding

Company which is associated with BP and Exxon. Corexit is the

most-used dispersant in the Deepwater Horizon oil spill 

in the Gulf of Mexico, with Corexit 9527 having been replaced by 
COREXIT 9500 after the former was deemed too toxic.

  Oil that would normally rise to the surface of the water is broken 

 up by the dispersant into small globules 

that can then remain suspended in the water.

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