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Sweet crude oil is a type of petroleum. The New York Mercantile Exchange designates petroleum with less than 0.42% sulfur as ''sweet''.〔BBC News. ("Oil markets explained" ). July 14, 2003.〕 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.〔(【引用サイトリンク】title=Description of the MC 252 Crude Oil )〕 == Producers == Producers of sweet crude oil include: * Asia/Pacific: * * The Far East/Oceania: * * * * * * * * * * * * * * * * * * * * * * * * * * The Middle East * * * * North America: * * The Appalachian Basin: * * * Grade Crude Oil * * The Mid-Continent Oil Field: * * * Sweet * * * Light Sweet (a.k.a. West Texas Intermediate ) * * The Trenton Formation: * * * * * The Bakken Formation of〔NextBigFuture, 26 January 2008 ("A Saudi Arabia of Oil" )〕 * * * * * * * * * * * * * Europe: * * Northern Europe: * * * * * * The North Sea area: * * * * * * * * (Brent Crude) * * * * * * * * * * * Africa: * * North Africa: * * * * * * * * Western Africa * * * * * * * * Central Africa * * * * * * * * * * South America: * * The Guianas: * * * Basin 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Sweet crude oil」の詳細全文を読む スポンサード リンク
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