Petroleum Definition (Crude Oil)

A Look into the Refining Process - CME Group

Chemical Constitution of Crude Oil

Crack Spread: A “Quick-and-Dirty” Indicator of Refining Profitability

Bbl, BOE, BTU, Mcf and Other Common Oil and Gas Abbreviations

Crude Oil Fractions & Their Uses, Organic Chemistry

API Gravity

Types of Crude Oil

Petroleum

How is petroleum formed? - Norwegianpetroleum.no

Crude oil, Definition, Characteristics, & Facts

Gasoline - definition and meaning - Market Business News

How to select the best crude oils for your refinery

What is Crude Oil?

Why Crude Oil Needs to be Refined