U.S. stocks: Dow futures up triple digits as oil rallies By: MarketWatch December 15, 2015 at 05:35 AM EST U.S. stock futures point to a higher open Tuesday, putting the market on track to build on the prior day’s advance as oil prices gain further. Read More >> Related Stocks: 3M Co F5 Networks Factset Research Systems Inc Paymentus Holdings Inc Cl A Standard & Poors 500