The plunging price of oil and its knock-on effect on energy companies has prompted a surge of interest from bargain hunters and those betting on a price rebound. Oil rigs, shale companies and energy stocks have all suffered as a result of the slump in the oil price from more than $100 a barrel in September to below $50 earlier this year. Some investors, ranging from distressed debt specialists through traditional funds and private equity companies to hedge funds, believe markets have overshot and that the price of oil will rise. Short positions on oil, which aim to profit when the price falls, are at their lowest level for over two years. Others believe they can profit from […]