1. Most of the oil traded across the world is produced by the 14 member countries of OPEC - the Organization of the Petroleum Exporting Countries. By controlling how much oil they produce, OPEC can control the price people pay for petrol in fuel stations.
2. In 1973, OPEC drastically reduced oil production. They did this to protest at US support for Israel. This vital natural resource was being used to achieve a politicalend.Europe and the USA experienced fuelshortages. The price of oil rose from $3 per barrel to $12 per barrel, and then to $40 per barrel by 1979.
3. The increase in the price of oil had a huge effect on businesses. They suddenly found their transport costs increased. By the 1980s, the world was experiencing a recession.
Companies tried to cut costs and reduce the number of workers they hired. This led to industrial unrest. The effects of this recession lasted until the 1990s.