"Warm weather has recently been the key depressing factor for oil though we note that in the main US northeast heating oil region, forecasts are for significantly colder weather to arrive late next week. We continue to view the market as getting a little complacent about product availability and the arrival of colder weather could be the catalyst required to end the recent downtrend."

(Kevin Norrish, energy analyst at Barclays Capital, said in a report Friday as bearish news dominated the energy complex last week pushing prices down across the board).
See more industry/OPEC viewpoints at http://www.platts.com/Oil/Resources/Quote%20of%20the%20Day/