Oil and OPEC watched on Wall Street By: CNBC.com News August 09, 2016 at 05:55 AM EDT U.S. stock-index futures traded flat to higher on Tuesday as traders eyed oil prices and earnings season trailed off. Read More >> Related Stocks: Dow Industrials SPDR PowerShares QQQ S&P 500 Ishares Core ETF SPDR S&P 500 ETF Trust Sentinelone Inc Cl A