The worse possible.
Yes it can because oil can kill us and coal is just oil turned into a solid.
Coal and oil are some natural resources of the US.
Coal, Oil, Natural gas. Coal first, Natural gas second, Oil third.
The US has the world's largest supply of coal.
oil or coal
Coal, oil, lumber,
oil coal gas
coal oil and tabaco
Restricting oil and coal trade.
Coal Wind Oil
Coal and oil - or at least those are the two they always went on about at school.
Use water and coal. :D