Petrol Retailers group calls for 'fair competition' on forecourt

An organisation which represents independent British petrol retailers has accused supermarkets of using their power to undercut prices.

The British Petrol Retailers' Association, now called RMI Petrol, has called on the Office of Fair Trading to investigate whether fair competition is taking place.

Brian Madderson, chairman of RMI Petrol, explained to BBC News Channel how he thinks supermarkets are using their size to produce an advantage on the forecourt.