AlQa'dah 1, 1433, Sep 17, 2012, SPA - Oil traded near $99 a barrel Monday in Asia, largely holding on to gains after the Federal Reserve last week announced new steps to boost the U.S. economy. Benchmark crude for October delivery was down 20 cents at $98.80 a barrel at midafternoon Bangkok time in electronic trading on the New York Mercantile Exchange. The contract on Friday traded above $100 for the first time since May before closing up 69 cents at $99 in New York. Brent crude was down 20 cents at $116.48 in London, according to a report of the Associated Press.