Watching US stock strength in the face of oil By: CNBC.com News February 20, 2015 at 06:04 AM EST Analysts will be looking for continued general resilience in U.S. stocks at the end of this shortened trading week. Read More >> Related Stocks: Berkshire Hathaway Cabot Oil & Gas Charles Schwab Deere & Co Wal-Mart Stores, Inc.