Singapore Stocks-May open up; Keppel Corp, NOL in focus

SINGAPORE, Dec 30 (Reuters) - Singapore shares mayopen higher on Friday after Wall Street rallied on the back ofpositive U.S. economic data, but the result of an Italian bondauction underscored ongoing investor concerns about the eurozone's debt woes. Investors demanded a yield of nearly 7 percent on 10-yearpaper at the Italian auction of medium- and long-term bonds,down from the record highs