SMO Energy is one of the region's leading providers of propane, heating oil, heating & cooling repair services, heating & cooling sales and installation, and 24/7 emergency service. Our commitment to industry leadership began in 1926 when Jim Wills and Harold Swann, acquired the La Plata Oil Company and Mechanicsville Oil Company, and merged the companies to form Southern Maryland Oil Company (SMO). The founders only dream for SMO was to be recognized for great customer service. Over 90 years later, the company's founding principle of customer centricity is a continued hallmark that can be observed in years and decades of continued service and repeat clients.