Slaughter and May, De Brauw Blackstone Westbroek and Cravath Swaine & Moore have won the lead roles on the Shell’s historic restructuring in what has been described as one of the UK’s biggest ever transactions.

All three firms have been working with the FTSE 100 oil giant providing UK, Dutch and US advice on the move that will see the combination of The Netherlands-based Royal Dutch and UK-based Shell to create Royal Dutch Shell.