SYRACUSE, ROCHESTER, BUFFALO, N.Y. — Speedway LLC has signed an agreement to purchase 78 Express Mart store locations held by Petr-All Petroleum Consulting Corp. The stores are located primarily in the Syracuse, Rochester and Buffalo markets. Following the acquisition, the stores will be rebranded as Speedway locations. The transaction is expected to close by the end of the third quarter. Speedway, headquartered in Enon, Ohio, is the nation’s second largest company-owned and operated convenience store chain with approximately 2,740 stores located in 21 states. Speedway is a subsidiary of Marathon Petroleum Corp.