U.S. fuel supplier Sunoco has struck a $9.1-billion deal to buy Canada-based Parkland, a move that would create the Americas' largest independent fuel distributor but which Parkland's largest shareholder immediately criticized.

US oil and gas group Sunoco has struck a $9.1bn deal to buy Canadian rival Parkland in a cross-border transaction that will create the biggest fuel distributor in the Americas during a sensitive time for relations between the two countries.

Sunoco will buy embattled Parkland in a $9.1 billion consolidation of two of the biggest fueling and convenience store powers across the Americas, creating a network of more than 11,000 fueling stations.