Sarah Cardell, CMA General Counsel, said: “The recent rises in pump prices are a major worry for millions of drivers.
“While there is no escaping the global pressures pushing up fuel prices, the growing gap between the oil price, and the wholesale price of petrol and diesel, is a cause for concern.
“We now need to get to the bottom of whether there are legitimate reasons for this and, if not, what action can be taken to address it.”
