"Other than extended warm weather forecasts, there was no particular driver behind today's sharp sell-off just as there was no one factor that spurred the $6 crude price advance of the prior seven sessions. A bullish demand side view received a further nudge today with the new highs in the Dow Jones Industrial Average while US dollar weakness thus far this year and increasing geopolitical concerns will remain background influences."

Energy consultant Jim Ritterbusch said in a report Monday as futures prices fell due to technicals rather than any paritcular fundamental reason.
See more industry/OPEC viewpoints at http://www.platts.com/Oil/Resources/Quote%20of%20the%20Day/