Heating oil decreased 0.90 USD/GAL or 44.27% since the beginning of 2020, according to trading on a contract for difference (CFD) that tracks the benchmark market for this commodity. Historically, Heating oil reached an all time high of 4.16 in July of 2008. Home Heating Oil Prices & Charts UK | BoilerJuice Every day we check the cost for 1,000 litres of heating oil (Kerosene 28) from every participating supplier in our database. We compare heating oil suppliers and take their lowest price. We do this for every postcode district, using this information to calculate the average UK heating oil price available though our site (including VAT at 5%).