RE: Optimism20 Jul 2018 21:55
Light crude oil has an API gravity higher than 31.1° (i.e., less than 870 kg/m3)
Medium oil has an API gravity between 22.3 and 31.1° (i.e., 870 to 920 kg/m3)
Heavy crude oil has an API gravity below 22.3° (i.e., 920 to 1000 kg/m3)
Extra heavy oil has an API gravity below 10.0° (i.e., greater than 1000 kg/m3)