$70 oil won't slow down U.S. shale growth: Pro By: CNBC.com News October 27, 2014 at 15:58 PM EDT If OPEC doesn't cut production, oil prices may continue to fall, Citigroup's Eric Lee said. But U.S. shale growth shouldn't really suffer, he added. Read More >> Related Stocks: Citigroup Goldman Sachs Group iPath Dow Jones-Goldman Sachs Crude Oil Fund