Wall St turns negative as oil rally fades, tech stocks drag Oil down, snaps 3-day rally after big U.S. crude build White House issues veto threat for U.S. House oil export bill Mexican crude oil output may only return to 2012 levels in 2018 Oil edges up, but may break $50 after U.S. inventories GLOBAL MARKETS-Equities, dollar and oil gain as gold slips Oil prices dip as traders take profit ...