The oil-tanker market is heating up, a development some analysts say is a warning flare that signals further price declines for crude. The Baltic Dirty Tanker Index, which tracks the rates to hire oil tankers plying 16 routes, has shot up 25% this month, as global oil output continues to grow. The index is now at its highest level since January 2014. But an increasing number of these oil cargoes have nowhere to go. Oil producers and traders are rushing to lease tankers while they scramble to find buyers, effectively turning these ships into floating storage facilities. The oil-supply glut has worsened since the Organization of the Petroleum Exporting Countries earlier this month decided to maintain crude-output levels. A recent rebound in oil prices has stalled amid copious supplies world-wide, and many market watchers are bracing for the resumption of a selloff that sent Brent crude, the global benchmark, […]