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because when crude oil is extracted from the land it is black in color. People call it gold because of its oils and value . It is very difficult to find. So it is called Black Gold.
Coal is Black gold
petroleum
As petroleum is digged in the earth it is black in colour and it is very popular so it is compared to an gold then it becomes blackgold
Petroleum is known as "Black Gold", cause it's Black and it's worth a lot and is indispensable for the human civilization !
Petroleum, also known as crude oil, is sometimes called black gold because of the enormous amount of money that is spent on it.
because when crude oil is extracted from the land it is black in color. People call it gold because of its oils and value . It is very difficult to find. So it is called Black Gold.
Coal is Black gold
Crude oil
petroleum
Crude oil, from which petroleum is derived, is referred to as 'black' gold. Liquid gold is often used to refer to certain alcohols with an amber hue like beer, cider, whiskey and brandy
petroleum
As petroleum is digged in the earth it is black in colour and it is very popular so it is compared to an gold then it becomes blackgold
Crude petroleum, gold, Furniture, Crustaceans
Black gold is a term that refers to crude oil or petroleum. When people would discover oil on their property, it usually made them rich, so it was like finding gold.
black gold is slang for crude oil
Noop. Black gold is slang for crude oil.