New Canaan Oil Company is a wholly-owned subsidiary of Servco Oil, providing fuel, fuel delivery, service and installations. Based in Wilton, Conn., the company serves in New Canaan, Darien, Greenwich/CosCob and Stamford towns. It offers Bioheat, a premium fuel formulation, which is a blend of traditional heating oil and biofuel made from natural sources. New Canaan Oil Company installs high-efficiency systems, ductworks, wireless temperature sensors, snowmelt systems, heaters, air conditioners and air handling equipment. The company renders an array of services, including automatic fuel delivery, indoor air quality solutions, maintenance, energy conservation and account management..