Crude oil contains much more than just carbon and hydrogen; it also contains nitrogen, helium, and other gasses , as well as relatively small amounts of sulfur, heavy metals, and other impurities.

The crude oil price escalation and de-escalation formula for change in API gravity may result in payment of a higher price for a crude oil as a result of the increase in API gravity, when the ...

New data released today by the U.S. Energy Information Administration (EIA) show that for the first nine months of 2015, the majority of crude oil produced in the Lower 48 states was light oil. As ...

As defined by the U.S. Geological Survey (USGS), heavy oil is a type of crude oil characterized by an asphaltic, dense, viscous nature (similar to molasses), and its asphaltene (very large molecules ...

Find out more about a key offshore reference and an important inverse relationship. With its regular introduction of new technologies, the oil and gas industry continually changes how it does things.