he boss of Steve Perkins, the broker at the heart of a rogue trading scandal that rocked oil markets this week, issued a bullish report suggesting prices could go higher only hours after Mr Perkins made the unauthorised trades that caused prices to spike. The disclosure raises further questions about internal controls at PVM Oil Associates, the world’s largest oil brokerage. The London-based firm, which revealed on Thursday it had lost $10m (€7.1m, £6.1m) as a result of trades by Mr Perkins, one of its senior brokers, said the trading report was sent to clients at 08.44 in London on...