Storage tanks at the Citgo Refinery in Corpus Christi, Texas

UNITED STATES - AUGUST 10: Storage tanks at the Citgo Refinery in Corpus Christi, Texas is pictured on Thursday, August 10, 2006. Citgo Petroleum Corp., the U.S. refining arm of Venezuela's state oil company, was indicted for benzene emissions at a refinery and for failing to protect migratory birds that became coated in oil at a storage facility. A federal grand jury in Corpus Christi, Texas, issued a 10-count indictment, charging Citgo, its Citgo Refining subsidiary and Philip Vrazel, environmental manager of the company's Corpus Christi East refinery, with criminal violations of the Clean Air Act and the Migratory Bird Treaty Act. (Photo by Eddie Seal/Bloomberg via Getty Images)