NEW YORK/ LONDON, April 27 : Oil futures rose on Monday as energy supplies were tight with U.S.-Iran peace talks stalled while Wall Street equity indexes inched down as investors looked cautiously ahead to a busy week of megacap earnings reports, economic data and central bank decisions. While a ceasefire has paused fighting in the war triggered by U.S.-Israeli strikes on Iran two months ago,  shipping through the Strait of Hormuz was still extremely limited, which pushed Brent futures to their