Total fuel used in vehicles owned or leased by the HEP for the whole estate. Sum total of Fuel used in HEP owned vehicles aviation spirit, Fuel used in HEP owned vehicles aviation turbine fuel, Fuel used in HEP owned vehicles biofuels, Fuel used in HEP owned vehicles diesel, Fuel used in HEP owned vehicles liquefied petroleum gas, and Fuel used in HEP owned vehicles petrol.