 Complete the following phrase:  From 2015 to 2016, Harris secured multiple multi-million-dollar settlements with fuel service companies Chevron, BP, ARCO, Phillips 66, and ConocoPhillips to resolve allegations they failed to properly monitor the hazardous materials in its underground storage tanks used to store gasoline for retail sale at hundreds of California gas stations. In summer 2016, automaker Volkswagen AG agreed to pay up to 14.7billion to settle a raft of claims related to so-called Defeat Devices used to 