Sunoco moved to expand its reach with a $9.1 billion deal to buy Canada’s Parkland, bringing with it a fleet of gas stations and a west-coast refinery.The companies said Monday they reached a definitive agreement that will see Parkland shareholders receive a mix of cash and shares.

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.

The combined company will benefit from complementary assets, enabling an advantaged fuel supply and further diversifying Sunoco's portfolio and geographic footprint.