Drivers could face higher prices or less choice as a result of Asda's £600m deal to buy 132 petrol stations from the Co-op, the Competition and Markets Authority (CMA) was warned.
The judgement comes after an official inquiry was launched into the deal in January after the transaction was completed towards the end of last year and saw 2,300 workers move over to the supermarket giant.
In August 2022, the Co-op first revealed plans to sell its petrol stations and attached convenience stores in a bid to bolster its finances.
