IEA lifts 2022 average crude oil price assumption to $79.40/bbl | Reuters
Crude Oil Price History Graph & Tables | 80 Years - Drilling Manual
Economics, fundamentals, technology, finance, speculation and geopolitics of crude oil prices: an econometric analysis and forecast based on data from 1990 to 2017 | SpringerLink
Historical Brent crude oil prices, nominal prices. Source: Data from BP... | Download Scientific Diagram
Brent Crude Oil vs WTI: Five Key Differences | IG International
Oil price rises above $80 for first time in three years - BBC News
155 years of oil prices - in one chart | World Economic Forum