World oil prices rose in Asian trade Friday amid tight global supplies and as investors continued to buy into the commodity which has given better returns than bonds and equities, dealers said.  In morning trade, New York's main oil futures contract, light sweet crude for June delivery, was up 64 cents to 124.76 dollars per barrel, off its record high of 126.98 dollars a barrel on Tuesday.  London's Brent crude contract for July rose 73 cents to 123.36 dollars. The contract for June expired at the close on Thursday, settling at 122.77 dollars. "The bullish enthusiasm in the market remains. The global oil market remains indeed structurally tight," said Victor Shum, an analyst with energy consultancy Purvin and Gertz in Singapore.