Petrol companies caught ripping off Australian drivers will now face fines of up to $100 million, as the government seeks to respond to growing anxiety about the fuel crisis sparked by the war in the Middle East.The Senate today voted to double the maximum fines the consumer watchdog can levy for misconduct, as calls for a reduction to the fuel excise and questions about the potential for rationing continued to swirl.Prime Minister Anthony Albanese and Treasurer Jim Chalmers said the