US STOCKS-Wall St jumps at the open as Brexit worries ebb
* Britain to vote on EU membership on Thursday
* Oil prices rise for second straight days
* Dow on track for best day in nearly 4 months
* Indexes up: Dow 1.29 pct, S&P 1.16 pct, Nasdaq 1.24 pct (Updates to open)
By Yashaswini Swamynathan
June 20 (Reuters) - Wall Street opened sharply higher on Monday, with the S&P and the Dow recovering last week's losses, after polls over the weekend showed an increased possibility of Britain remaining in the European Union.
Global markets went into a tizzy last week as investors unsure over the fallout of Britain's vote on Thursday fled to safe-haven assets such as the yen and gold.
However, polls showed that the "Remain" campaign had gathered favor over the weekend, causing a rebound in the British pound.
Oil prices were on track to mark their largest two-day rise in a month as investor confidence in the risky asset rose and the strength of the dollar weakened. Continuación...