Oil prices dipped on Thursday as emerging market turbulence weighed on sentiment, while a deadline neared for a potential new round of U.S. tariffs on another $200 billion of Chinese goods.  U.S. sanctions against Iran, however, prevented prices from falling further as they are expected to tighten the market after being implemented from November, traders said. U.S. West Texas Intermediate (WTI) crude futures CLc1 were at $68.59 per barrel at 0645 GMT, down 13 cents, or 0.2 percent, from their last settlement. Brent crude futures LCOc1 fell by 4 cents, to $77.23 a barrel. Emerging market woes are weighing on global economic growth prospects, with Asian shares on Thursday heading for their sixth straight session of losses. Brent […]