Shop around, get out your local yellow pages and phone each one of the local oil distributors. The price of home heating oil has dropped in recent weeks whether this trend will continue is anyone's guess.
My cheapest quote was 830 euro last week for 1000 litres of kerosene but I am going to hang on a bit and watch the prices in case they go down further.
filled in June at a horrendous 930 per 1000 of kero, but believe that prices should be down approx 15% from that if the fall in the petrol prices has a strong correlation.