(ANSA) - TRIESTE, MAR 30 - Slovenia's regulated fuel prices will rise tomorrow, with regular petrol rising by 3.5 cents at midnight to EUR 1.616 per litre, after the government decided not to change the relevant excise duty. STA, the Slovenian news agency, announced today that diesel prices will rise by up to 11.1 cents to 1.807 per litre. (ANSA).