(CNBC) — U.S. stocks closed higher Monday, amid gains in oil prices, as fears of a Brexit diminished.
U.S. crude oil futures settled up 2.9 percent at $49.37 a barrel. Energy closed about 1 percent higher as one of the top S&P 500 advancers. The benchmark index briefly topped the psychologically key 2,100 level and was about 2 percent below its all-time intraday high of 2,134.72.
"The specter of Britain leaving the EU looks like it's not happening, and this is a huge sigh of relief," said Kim Forrest, senior equity analyst at Fort Pitt Capital.
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