Reuters | Oil up 4 percent as OPEC meets, volatility hits post-Doha high Reuters Implied volatility, a gauge of how much oil prices move, was at its highest since April 18, when the meeting in Doha among OPEC members to discuss an output freeze ended in an impasse, leaving crude at just above $40. Scepticism about any deal being ... Oil Bounces on Chance of OPEC Action If OPEC struck a deal it would have big impact: CNBC Oil Survey Few signs of oil freeze at home as Russia meets OPEC |