Oil futures edged higher on Tuesday after paring most of their gains as stock markets turned negative on worries about a possible U.S. government shutdown.  U.S. stock markets pulled back after President Donald Trump threatened to shut down the federal government over funding for a wall along the U.S.-Mexico border. [.N] “It looks like the prospect of a U.S. government shutdown is not good for any asset class. Equities reacted first, taking oil prices down with it,” said John Kilduff, a partner at Again Capital Management in New York. Prices rose over $1 a barrel earlier in the session after Libya’s National Oil Company (NOC) declared a force majeure on exports from the country’s biggest oilfield, which was seized last […]