Oil storage tanks and refining facilities sit at the Esso oil refinery, operated by Exxon Mobil Corp. in Fawley, U.K., on Friday, Oct. 2, 2015. A 50 percent drop in crude prices in the past year has hit earnings for oil and gas producers, forcing them to slash capital spending and scale back unprofitable operations. Photographer: Simon Dawson/Bloomberg via Getty Images
