Crude Oil WTI Futures, the U.S. benchmark, recently traded at $73.17 a barrel following the report after settling up 1% at $73.32 a barrel.

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).

West Texas Intermediate (WTI) crude oil is of very high quality. It has API gravity of 39.6 and sulphur ... a big favor and take a peek at your oil charts. It could just give you critical insight ...