View source for Sweet crude oil (nonfiction)

[[File:Beatty_oil_well.jpg|thumb|Beatty oil well.]]'''Sweet crude oil''' is a type of [[Petroleum (nonfiction)|petroleum]].

The New York Mercantile Exchange designates petroleum with less than 0.42% sulfur as sweet. Petroleum containing higher levels of sulfur is called sour crude oil. Sweet crude oil contains small amounts of hydrogen sulfide and carbon dioxide. High-quality, low-sulfur crude oil is commonly used for processing into gasoline and is in high demand, particularly in the industrialized nations.

Light sweet crude oil is the most sought-after version of crude oil as it contains a disproportionately large fraction that is directly processed (fractionation) into gasoline (naphtha), kerosene, and high-quality diesel (gas oil).

The term '''sweet''' originates from the fact that a low level of sulfur provides the oil with a mildly sweet taste and pleasant smell. Nineteenth-century prospectors would taste and smell small quantities of oil to determine its quality.

== In the News ==

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File:Petroleum.jpg|Petroleum sample aspires to become [[Sweet, sweet crude oil]], launches Kickstarter campaign to fund refinery.
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== Fiction cross-reference ==

* [[Sweet, sweet crude oil]]
* ''[[The Little Petroleum Sample That Could]]''

== Nonfiction cross-reference ==

External links:

[[Category:Nonfiction (nonfiction)]]
[[Category:Materials (nonfiction)]]