Westgold butter is now available in 550 Walmart stores across the United States. Photo: SuppliedWestgold butter, produced at Westland Milk Products' new Hokitika plant, is on the shelves of 550 Walmart stores across 19 states in the United States. "The United States market for our Westgold butter has huge potential. We know that consumers in the United States are butter users, often having multiple brands and types of butter on hand for different purposes," Mr Yates said. Its challenge was to stand out to shoppers in the United States butter market which was dominated by long-standing brands.