An employee works on an I-beam frame at the American Electric Power (AEP) Appalachian Power Co. natural gas combined cycle plant in Dresden, Ohio, U.S., on Wednesday, Nov. 18, 2015. A government report scheduled for release on November 25 may show gas stockpiles rose by 7 billion cubic feet in the seven days ended Nov. 20, the first storage gain since 2012 for that period. Photographer: Ty Wright/Bloomberg via Getty Images
