What is a refinery's crude oil assay?

A refinery's crude oil assay is indeed a detailed report analyzing the characteristics and composition of crude oil. This assessment is crucial because it provides valuable information about the specific types of hydrocarbons present in the crude, including their molecular structure, density, viscosity, sulfur content, and other critical properties. Understanding these characteristics helps refiners determine how to process the crude oil most effectively and which products can be optimally derived from it.

This analysis often includes data on the crude's yield of different fractions, such as gasoline, diesel, and kerosene, which can influence economic decisions regarding purchasing and processing crude oil from various sources. The crude oil assay also guides the refining strategy, ensuring that the refinery can operate efficiently and meet product specifications.