7-Eleven, the US unit of Japanese retailer Seven & I, has entered into an agreement to purchase Buffalo-based convenience chain Wilson Farms.

Wilson Farms is currently owned by Bruckmann, Rosser, Sherrill & Co., a private-equity firm, and the Nanula Family. It operates 188 c-stores throughout New York state.

The acquisition will "significantly" increase 7-Eleven's presence in western New York, the company said.

"Wilson Farms has a successful store operation, quality locations and a strong customer-service culture," said Stan Reynolds, 7-Eleven executive vice president and CFO. "The combination of the two companies will strengthen our convenience offering in the western New York area."

7-Eleven will invest in remodeling the stores,the company added.

Terms of the deal, which is expected to close in the second quarter, were not disclosed.