Boy, the enviros have really put one over on people - again. Thanks for the info.
They refuse to see crude oil as a natural substance. There are many derivatives of crude that are indeed harmful to the environment, but the composition of raw crude is not and once the lighter elements escape into the atmosphere, the residue left will begin to sink and it will become part of the food chain. What little is left will end up as part of the sea floor and perhaps part of the oil supply in the distant future.
In reality they are all interchangeable and want simply to cause chaos and the demise of the West just as any Communist does.