U.S. stock-index futures extended declines amid weaker-than-forecast manufacturing data after weekend negotiations between Greece and its creditors broke down. Standard & Poor’s 500 Index E-mini contracts expiring in September retreated 0.7 percent to 2,071 at 9:19 a.m. in New York. Factory production unexpectedly declined in May as the slump in energy output deepened. The 0.2 percent decrease at manufacturers followed a 0.1 percent increase in April, figures from the Federal Reserve in Washington showed Monday. Total industrial production, which also includes mines and utilities, also dropped 0.2 percent. The latest round of bailout talks between Greece and its creditors ended in acrimony after leaders met for just 45 minutes in Brussels on Sunday. A June 18 meeting of euro-area finance ministers may now decide whether Greece will avert default and stay within the currency bloc. “All eyes are on the tumultuous Greek negotiations which have moved the risk markets not only here in the United States, but across the globe,” said Chad Morganlander, a money manager in Florham Park, New Jersey, for Stifel, Nicolaus & Co., which oversees about $170 billion. “That as well as the weekly thematic will be the message from central banks, in particular the Federal Reserve.” The specter of higher borrowing costs is also keeping U.S. equities in check, even after data last week signaled a pickup in consumer spending. The S&P 500 finished its seventh straight week with a move of less than 1 percent. The Federal Reserve begins a two-day meeting tomorrow, at which officials are expected to leave interest rates unchanged. Still, improving economic reports since the central bank’s last session have pushed the probability for a September increase to 53 percent, data compiled by Bloomberg show. Chair Janet Yellen may provide further clues at a press conference on June 17. Data earlier showed manufacturing activity in the New York region unexpectedly contracted this month amid a drop in new orders.