GLOBAL MARKETS-Wall St up as near-term rate-hike prospects fade; oil jumps

(Adds Wall Street's record close, late prices and quotes) * Wall Street's S&P 500 index at record high * Dollar ends three days of gains * Oil jumps, Brent tops $66 * Coming Up: Fed Chair Yellen to speak on Friday By Michael Connor NEW YORK, May 21 (Reuters) - Global equity markets rose on Thursday, with Wall Street's S&P 500 index closing at a record high as investors bet that U.S. interest rates won't rise soon, while oil jumped more than 2 percent on the view that