Fuel from mines is a term used to describe the extraction of combustible materials such as COAL, oil, and natural gas from underground deposits. COAL is the most common type of fuel from mines, and it is formed from the remains of ancient plants that have been buried and compressed over millions of years. COAL is mined by digging deep into the earth and extracting the COAL from the seams. It is then transported to power plants where it is burned to generate electricity.