Analysts said oil traders were taking an “optimistic view” that disruption in the region could soon ease. NEW YORK: Stock markets were mixed while oil prices fell again on Friday (May 29) on investor optimism that the United States and Iran would reach a deal to extend their ceasefire - despite Washington and Tehran offering conflicting views on the state of negotiations. Oil markets have been up and down this week as investors assess the chances of a breakthrough deal that could potentially