General Info

Founded in 1926, Southern Maryland Oil (SMO) is one of the leading providers of heating oil and propane, as well as heating and cooling services in the state of Maryland. It is a full-service company that offers a range of heating and cooling systems, including furnaces, boilers, heat pumps, humidifiers, water heaters, and air conditioners and cleaners. Southern Maryland Oil has a fleet of delivery trucks. In addition, the company provides a variety of residential and commercial thermostats from the Honeywell brand. Southern Maryland Oil serves restaurants, golf courses, hospitals, retail outlets, factories, government bodies and heavy equipment users. It also has a sister company, Delmarva Oil Company.