New York Mercantile Exchange nearest delivered oil futures and Brent crude on the Intercontinental Exchange traded sharply lower at the start of a new business week amid growing concerns that a systemic slowdown in China’s economy could temper global oil demand. As financial and political leaders gather this week at the Swiss resort town of Davos for the World Economic Forum, investors reassess the global economic growth outlook amid fresh signs of a slowdown of China’s economy. China- the world’s biggest importer of crude reported…