Jack Gerard, president and chief executive officer of the trade group American Petroleum Institute, responds to questions during an interview Thursday, March 31, 2016, in Denver. (AP Photo/David Zalubowski) ** FILE **
Featured Photo Galleries
Jack Gerard, president and chief executive officer of the trade group American Petroleum Institute, responds to questions during an interview Thursday, March 31, 2016, in Denver. (AP Photo/David Zalubowski) ** FILE **
