Fuel prices and margins: what the CMA's latest update means for you

The Competition and Markets Authority has released its most recent assessment of the UK road fuel market, and for drivers watching every penny at the pump, the headline finding is that geopolitical pressure from the conflict in the Middle East has continued to influence what retailers pay for fuel and, in turn, what you pay on the forecourt.

The CMA's update covers the period through to the end of June 2026 and examines how wholesale costs and retail margins have moved during that time. Margins are the gap between what a retailer pays for fuel and what it charges you. When margins widen, drivers pay more than the raw cost of oil would suggest they should, which is precisely why the CMA has been monitoring this market since its 2023 review found that supermarkets were keeping more profit per litre than they had historically.

The update also includes a progress report on the Fuel Finder scheme, the transparency initiative that requires retailers to submit live pump prices to a central system so that official price data is publicly available. The CMA has been tracking whether that visibility is working to keep pressure on retailers to price competitively, and whether drivers are seeing the benefit at the pump.

For money-conscious drivers, the practical takeaway is straightforward: knowing what local stations are charging before you fill up remains one of the easiest ways to cut your fuel bill, and the official price data that Fuel Finder feeds into makes that comparison possible. Beyond the pump, your overall cost of owning a car covers a lot more than fuel. If you are thinking about selling your current vehicle, Car.co.uk offers a free instant valuation, free collection and payment by bank transfer, as well as free tools including a car valuation, an MOT history check, a car tax calculator and a car finance calculator.