Petroleum The word petroleum comes from the root words with Latin translation (Petra) live phet said that at the Ulsan rock and technologists (Oleum), mean total petroleum demand, and therefore oil means oil that is derived from the rocks by the ooze out in the form of liquid or gas when the first one found. Petroleum is a naturally occurring substance, it's a combination of different types of carbon at don Holmes, cumbersome and complex both in solid, liquid and gas or mixed environment, all three, but to categorize them into different types of petroleum will use the term crude oil (Crude oil), natural gas (Natural gas) and natural gas liquids (Condensate) are usually found in crude oil and natural gas, often occurring together in some sources, but may only contain petroleum crude oil. Some sources may contain only natural gas. Best natural gas liquids it means Natural gas in the deep underground under the condition of high temperature and high pressure. When it was brought up to the level surface in the process of production. The temperature and pressure are reduced. Make natural gas made to a State. Called natural gas liquids
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