
A general view of the Gunvor Petroleum or Rozenburg refinery in Rotterdam, the Netherlands. Europe’s largest port covers 105 square kilometers (41 square miles) and spans a distance of 40 kilometers (25 miles).
Dean Mouhtaropoulos | Getty Images News | Getty Images
The energy sector has been by far the biggest winner this year amid an economic recovery and rebound in oil prices, and the top hedge funds in the field are leading the comeback rally.