STOCKS CLOSE FLAT: Here's what you need to know

US stocks closed little changed on Friday after swinging around during the day, as the White House signaled that big tax-reform news could come next week.
But crude oil took a decisive turn lower, falling below $50 per barrel, amid concerns that US drillers would undermine OPEC's efforts to cut production. 
Here's the scoreboard: 
Dow: 20,547.76, -30.95, (-0.15%)
S&P 500: 2,348.69, -7.15, (-0.30%)
Nasdaq: 5,910.52, -6.26, (-0.11%)
WTI crude oil: $49.62, -$1.09, (-2.2