Asda is to buy the UK and Ireland business of EG Group for £2.27billion - in a deal that will include 350 petrol stations and about 1,000 shops.
Both businesses are already owned by the billionaire brothers Mohsin and Zuber Issa and private equity group TDR Capital.
The companies said the tie-up will create combined revenues of nearly £30billion, with all EG Group sites to be rebranded as Asda.
