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en.wikipedia.org/wiki/Components_of_crude_oil

The Components of Crude Oil. Crude oil is essentially a mixture of many different hydrocarbons ... Navigation. Main page · Contents · Featured content · Current events · Random article · Donate to Wikipedia · Wikipedia store ...

en.wikipedia.org/wiki/Petroleum

Petroleum is a naturally occurring, yellow-to-black liquid found in geological formations .... Access to oil was and still is a major factor in several military conflicts of the ... The exact molecular composition of crude oil varies widely from formation to formation but the proportion of chemical elements varies over fairly narrow ...

www.britannica.com/science/crude-oil

Jul 24, 2017 ... crude oil: Liquid petroleum that is found accumulated in various porous rock ... Those elements form a large variety of complex molecular structures, some of ... in crude oil; certain liquid paraffins are the major constituents of ...

science.howstuffworks.com/environmental/energy/oil-refining1.htm

The major classes of hydrocarbons in crude oils include: Paraffins ... On average, crude oils are made of the following elements or compounds: Carbon - 84% ...

www.petroleum.co.uk/composition

Although the composition of petroleum will contain many trace elements the key ... of the four main hydrocarbons found within petroleum as part of the petroleum  ...

www.chemistryexplained.com/Ny-Pi/Petroleum.html

Although there are 20,000 petroleum fields known worldwide, more than half of the known reserves are contained in the 51 largest fields. The Middle East has ...

oilprice.com/Energy/Crude-Oil/What-Is-Crude-Oil-A-Detailed-Explanation-On-This-Essential-Fossil-Fuel.html

Jul 24, 2009 ... While hydrocarbons are usually the primary component of crude oil, ... It is important to note that the term production here refers to crude oil ...

www.sciencedirect.com/science/article/pii/S0584854702001714

Information on trace element concentrations in crude oil is getting increasingly important for the geochemical characterization of source rocks and basins and for  ...

www.answers.com/Q/What_chemical_elements_make_up_crude_oil

The make-up of crude oil consists 84% carbon molecules,14% hydrogen, ... of hydrocarbons and hence they contain carbon and hydrogen as the elements. .... It depends if you are asking what are the major elements that make up crude oil or ...