Oil witnessed a decline in prices as the industry braces for the meeting between the Organization of the Petroleum Exporting Countries (OPEC) and allies including Russia to set the tone of productions policies. According to Reuters, Brent crude traded down 37 cents or 0.5% at $78.91 per barrel by 0850 GMT. Traders are hoping that OPEC won't change the output levels as the market still trying to recover from the ...