Petrol said in a press release that it sold 63.7 million cubic metres of natural gas between January and June, which was 7% up on the same period last year and 5% above it plans.

The group also increased the sales of liquified pertroleum gas (LPG) by 13% compared the the first half of 2010, amounting to 25,300 tonnes. The figure is however 9% below what was planned.

Petrol estimates to have sold 517,000 MWh of electricity, an increase of 203% on the figure from the same period last year.

Petrol operates 313 petrol stations in Slovenia, 81 in Croatia, 28 in Bosnia-Herzegovina, six in Serbia and three in each Kosovo and Montenegro.

The group's supervisory board will meet to discuss the business report for the first six months on 25 August, after which the full results, including revenues, will be released.