A worker walks atop oil tanker wagons at an oil terminal near Kolkata, India. The stalemate within the world's main oil-exporting bloc has left traders uncertain about future supply. Reuters
A worker walks atop oil tanker wagons at an oil terminal near Kolkata, India. The stalemate within the world's main oil-exporting bloc has left traders uncertain about future supply. Reuters

Oil rises as US inventories set for decline