(ANSA) - BELGRADE, APR 7 - Fuel prices at service stations outside motorways and motorways in Slovenia will rise at midnight. The price of regular petrol will rise by 3.7 cents per litre to EUR 1.653, diesel by 8.7 cents to EUR 1.894, and heating oil by 9.9 cents to EUR 1.555, according to Slovenian news agency STA. Fuel prices at service stations along motorways were fully liberalised on March 20 and are higher than on regular roads. (ANSA).