The U.S. Coast Guard and the Environmental Protection Agency are working with Texas state regulators to clean up oil and chemicals spilled from a dozen industrial facilities after flooding from Hurricane Harvey, authorities said. The spills came from oil refineries, fuel terminals and other businesses, but EPA spokeswoman Terri White said it was not possible to provide an estimate for the amounts spilled. "Initial reports were based on observation," White said. Refineries owned by Valero Energy Corp in Houston, Motiva Inc in Port Arthur, and Exxon Mobile Corp in Baytown, were among the facilities that had reported spills, according to White. Representatives for those companies did not immediately respond to requests for comment.