Have you ever been to one of these refineries?
Some of them are really old. Some of these oil companies spend money on maintaining them, but the don't always replace some of the things that are
very old.
My husband has worked at a lot of these places, maintaining some of the areas in them.
After what he has told me about some of these places, I am honestly surprised that explosions don't happen more often.
Remember, oil companies are in business to make money. I think they will go the cheapest route possible to refine the stuff, to squeeze out, yet more
money!

