As defined by the U.S. Geological Survey (USGS), heavy oil is a type of crude oil characterized by ... the upper limit for heavy oil is 22° API gravity with a viscosity of 100 cp (centipoise).

Both API and EIA reports can influence crude oil prices, though the API is often used as a preliminary indicator. The API report is based on voluntary survey responses from its members ...

PDVSA to produce 105,000-138,000 bpd of Hamaca heavy crude A portion of output to be refined domestically, another exported to markets other than the US Diluents to be recycled, supplied from ...