Bloomberg | Crude price crash batters profits at China's biggest oil producer Telegraph.co.uk Profits at PetroChina tumbled to the lowest since 1999 as falling crude prices batter the country's biggest oil and gas producer. Net income at the Beijing-based explorer dropped 67pc to 35.5bn yuan (£3.9bn) from 107bn yuan. That compares with a 34.3bn ... Oil Plunge Pushes PetroChina Profit to Lowest Since 1999 |