Oil market bears want to believe Goldman Sachs’ forecast that crude could hit $20 a barrel. But many have been hesitant to make that bet. U.S. data on Friday showed that money managers had expanded their short positions in oil futures in the latest week by the largest amount since July. However, in six of the last eight weeks, net long positions had increased. The trend shows that investors who believe prices are headed lower are uncertain about the timing. For those with short positions, the easy money has run out after oil’s 60 percent slide from the summer of 2014 to below $50 a barrel now. Now bears are struggling to navigate a rocky market. “We’ve been whipsawed around quite a bit and it’s a very […]