Hemi Energy Group Inc. (fka HMGP)

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Specific Gravity


The specific gravity is typically measured using the American Petroleum Institute
(API) standard or the API gravity of the crude oil. The API gravity is the measure of
the weight of crude oil in relation to the weight of water (water has an API gravity of
10 degrees). Crude oil is characterized as heavy, intermediate, or light with respect
to its API gravity.

• Heavy Crude: Crude oils with API gravity of 18 degrees or less is
characterized as heavy. The oil is viscous and resistant to flow, and tends to
have a lower proportion of volatile components. Fifty one percent of California
crude oil has an average API of 18 degrees or less.

• Intermediate Crude: Crude oils with an API greater than 18 and less than
36 degrees are referred to as intermediate. Forty eight percent of California
crude oil has an average API between 18 and 36 degrees.

• Light Crude: Crude oils with an API gravity of 36 degrees or greater. Light
crude oil produces a higher percentage of lighter, higher priced premium

http://www.energy.ca.gov/2006publications/CEC-600-2006-006/CEC-600-2006-006.PDF