For professional, courteous, and affordable home heating oil service and delivery look no further than the Jennings Oil Company. Jennings Oil is a locally owned and operated business headquartered in Danbury, CT that has provided home comfort to families in Fairfield, Litchfield and New Haven counties since 1982.We go the extra mile to take care of all your heating oil delivery and heating needs, including new equipment installations, repairs, maintenance plans, and 24-hour emergency service.