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, 11:22, March 22, 2007
'''Refining''' is the process of creating fuels for [[internal combustion]] engines from mineral hydrocarbons extracted from under the earth. It is a highly lucrative business, as most of the world's economy relies on these fossil fuels for energy. Some of the richest [[corporation]]s in the world have been formed in the oil business, and indeed the industry could never have grown so large without the large-scale industrial organization that corporations have provided.
Refining takes place in a [[cracker]], which produces various grades of fuel from the oil.