Berkshire Hathaway Inc. and its subsidiaries are engaged in diverse business activities, including insurance and reinsurance, utilities and energy, freight rail transportation, manufacturing, services and retailing. Its segments include Insurance, Burlington Northern Santa Fe (BNSF), Berkshire Hathaway Energy (BHE), Pilot Travel Centers (Pilot), Manufacturing, McLane Company (McLane), and Service and retailing. The Insurance segment includes GEICO, Berkshire Hathaway Primary Group, and Berkshire Hathaway Reinsurance Group. The BNSF segment includes the operation of railroad systems in North America. BHE segment offers regulated electric and gas utilities and real estate brokerage activities. Manufacturing segment manufacturers various products, such as industrial, consumer and building products. The McLane segment is engaged in wholesale distribution of groceries and non-food items. The Pilot segment is an operator of travel centers in North America and a marketer of wholesale fuel.