Raining Oil in Louisiana Part 2

In what is good news: the National Weather Service told MSNBC that it cannot rain oil.

National Weather Service statement:

The notion of oily rain is not realistic. Oil as a whole does not evaporate, therefore it is not possible that it would be in the clouds or coming down in the form of rain.

Oil is made up of component parts, some of which are volatile and do evaporate into the atmosphere, these separate and diffuse out into the air. Other component parts do not evaporate and that is what is left behind in weathered oil, residue or tar balls.