The Issa brothers are planning a $15bn (£10.8bn) sale of their petrol station and forecourts business, EG Group.
The Blackburn-based company is working with banks including Rothschild, Goldman Sachs, Morgan Stanley and Barclays to consider its options.
EG Group is backed by private equity firm TDR Capital and the billionaire brothers.
Its rapid, debt-fuelled growth has resulted in it owning around 6,000 sites in the UK and around the globe.
