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M.W. Sewall is a locally-owned, full-service energy company providing reliable fuel delivery and friendly, professional service to the communities in Maine's Midcoast Region. For over a century, we continue to embrace our commitment to make customer service our #1 priority. Our services include heating oil, kerosene, propane, gasoline, and diesel delivery, as well as remote propane tank monitoring, 24/7 emergency service, and heating system installation and maintenance.