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Frequently Asked Questions FAQs U.S. Energy Information Administration EIA.
Crude oil is a mixture of hydrocarbons that exists as a liquid in underground geologic formations and remains a liquid when brought to the surface. Petroleum products are produced from the processing of crude oil and other liquids at petroleum refineries, from the extraction of liquid hydrocarbons at natural gas processing plants, and from the production of finished petroleum products at blending facilities.
Petroleum Simple English Wikipedia, the free encyclopedia.
Petroleum, from Greek rock and oil also called crude oil, is a thick and black liquid. It is a natural material mainly made of hydrocarbons. Most petroleum is found by drilling down through rocks on land or off shore on the continental shelf.
Petroleum Information on Petroleum and Crude Oil.
World War I was the real catalyst for petroleum production, with more petroleum being produced throughout the war than had ever been produced previously. In modern times petroleum is viewed as a valuable commodity, traded around the world in the same way as gold and diamonds.
petroleum Energy, Products, Facts Britannica.
Liquid and gaseous hydrocarbons are so intimately associated in nature that it has become customary to shorten the expression petroleum and natural gas to petroleum when referring to both. The word petroleum literally rock oil from the Latin petra, rock or stone, and oleum, oil was first used in 1556 in a treatise published by the German mineralogist Georg Bauer, known as Georgius Agricola.
Petroleum Wikipedia.
Most significantly, extraction, refining and burning of petroleum fuels all release large quantities of greenhouse gases, so petroleum is one of the major contributors to climate change. Furthermore, parts of the petroleum industry actively suppressed science and policy that aimed to prevent the climate crisis.

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