Wall Street eyes oil in shortened trading week By: CNBC.com News March 21, 2016 at 06:06 AM EDT U.S. stock index futures indicated a slightly higher open as investors focused on the price of oil and monitored comments by Federal Reserve members. Read More >> Related Stocks: Apple Dow Industrials SPDR PowerShares QQQ S&P 500 Ishares Core ETF SPDR S&P 500 ETF Trust Sentinelone Inc Cl A