We've seen an oil price war between two of the world's biggest producers, WTI prices turning negative and a storied oil trading house in Singapore collapse. What lessons can we take from oil markets in the last 2 months? Dr Fereidun Fesharaki, Chairman of FGE, joined us on MoneyFM to discuss why Brent Crude matters more, why impulse more than strategy was behind the March price war, lessons to be learned from Hin Leong's troubles, and why the story for oil will still hinge on demand.