True or false: Some of the biggest, especially in the oil sector, are owned and run by national governments.
Answer can be found on page 31.
Some of these national governments are heavily reliant on revenue from oil and therefore have formed groups – such as the Organization of Petroleum Exporting Countries (OPEC) – to try to maintain prices at a level that will bring them plenty of profit, but that is not so high that it will depress the economies of consuming countries.