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Petroleum [a] is a naturally occurring yellowish-black liquid mixture. It consists mainly of hydrocarbons, [1] and is found in geological formations. The term petroleum refers both to naturally occurring unprocessed crude oil, as well as to petroleum products that consist of refined crude oil.
The petroleum industry, also known as the oil industry, includes the global processes of exploration, extraction, refining, transportation (often by oil tankers and pipelines), and marketing of petroleum products. The largest volume products of the industry are fuel oil and gasoline (petrol).
Petroleum play (or "play"): A group of oil prospects that are controlled by the same set of geological circumstances. Pig: A device inserted into a pipeline for cleaning purposes. The act of using a pig is called pigging. Piston corers: Advanced piston corer, extended core barrel systems [clarification needed]
Petroleum products are materials derived from crude oil as it is processed in oil refineries. Unlike petrochemicals, which are a collection of well-defined usually pure organic compounds, petroleum products are complex mixtures. [1] Most petroleum is converted into petroleum products, which include several classes of fuels. [2]
Oil field in California, 1938. The modern history of petroleum began in the nineteenth century with the refining of paraffin from crude oil. The Scottish chemist James Young in 1847 noticed a natural petroleum seepage in the Riddings colliery at Alfreton, Derbyshire from which he distilled a light thin oil suitable for use as lamp oil, at the same time obtaining a thicker oil suitable for ...
The market anxiety ahead of Donald Trump's tariffs deadline focused Friday on oil and gas after the president acknowledged there could be issues including the energy staple in his overall plans.
[dubious – discuss] [citation needed] The curve is the main component of Hubbert peak theory, which has led to the rise of peak oil concerns. Basing his calculations on the peak of oil well discovery in 1948, Hubbert used his model in 1956 to create a curve which predicted that oil production in the contiguous United States would peak around ...
A 78-year-old climate protester has had her prison sentence extended by 20 days for being "unlawfully at large", after the authorities failed to find a tracking bracelet that fitted her. Gaie ...