Winter is coming-and so is $100 oil By: CNBC.com News October 09, 2014 at 07:34 AM EDT The prospect of a harsh northern hemisphere winter, an OPEC supply cut and a volatile geopolitical picture may send oil prices back towards $100 a barrel. Read More >> Related Stocks: Deutsche Bank Ag Sentinelone Inc Cl A iPath Dow Jones-Goldman Sachs Crude Oil Fund