Commercial form of oil (could be raw or slightly processed to match the trade specifications)..
The most common characteristics used to identify the quality of a crude are its API gravity and its sulfur content.
Crude is considered sweet if sulfur content < 0.5 % and sour if sulfur content > 0.5 %.
Below are the popular Popular examples of market crudes setting up oil price benchmarks:
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which set up the oil price benchmarks in exchange tradings:
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products for the more detailed list.
See also
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Petroleum Industry / Upstream / Subsurface E&P Disciplines / Petroleum Geology / Petroleum fluids
[ List of crude oil products ]
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