The American Petroleum Institute's "API gravity" is a standard to express the specific weight of oils, computed as (141.5/sp g) - 131.5, where sp is the specific gravity of the oil at 60 degrees ...

Engine oil products that have the API category and ratings ... Currently, the newest S standard is the SP standard, which was ...

Both API and EIA reports can influence crude oil prices, though the API is often used as a preliminary indicator. The EIA report includes crucial refinery utilization data, providing deeper ...