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Associated gas is a type of natural gas that is found dissolved in crude oil or as a gas cap above oil in underground reservoirs. It is considered the gaseous phase of crude oil and often contains lighter liquids like propane and butane, leading to it being called "wet gas". This gas plays a role in the pressure that forces oil to the surface. Associated gas is separated from oil once it reaches the surface. Natural gas itself is a colorless, flammable hydrocarbon primarily composed of methane and ethane, used for electricity generation, heating, cooking, and as a chemical feedstock.12

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