BBC News | Oil prices rise to hit four-year high of $70 a barrel BBC News The price of oil has hit $70 a barrel for the first time since December 2014. Brent crude climbed after members of Opec, the cartel of 14 oil-producing nations that accounts for 40% of the world's output, said it would continue to limit supplies. The ... Oil reaches multi-year highs despite signs of overheated market Oil nears $64 a barrel on shrinking inventories Oil Reaches $70 a Barrel for First Time in Three Years |