In 2023, the Brent oil benchmark, a key international oil price marker for global crude oil underwent a substantial change. It incorporated another key benchmark, West Texas Intermediate oil from Midland, produced in the US and sold into European and Asian markets. Brent is used to set prices for over 70 per cent of global crude oil, so this fundamental change in the composition of the benchmarks is making some observers question its future development and even its survival. Lessons from the past are very important for the future, particularly in this case.This book revisits the history and...