About Mid-Atlantic Rail Services

Mid-Atlantic Rail Services (MARS) provides offloading and storage of propane (with plans for butane in the future) for wholesale customers in Maryland, Delaware, Virginia, New Jersey, and Pennsylvania. Established in 2019 it is the newest addition to the Tri Gas & Oil family of companies. The addition of MARS, with terminals in Baltimore, MD and Williamsburg, MD, Tri Gas & Oil is better able to serve our wholesale partners by increasing our transport and service territory.

About Tri Gas & Oil

Since its incorporation in 1963, Tri Gas & Oil has proudly been serving the Eastern and Western shores of Maryland and Delaware and the surrounding areas. We provide propane, heating oil, petroleum-based fuels, and propane-powered appliances to area homes and commercial businesses. We offer level payment plans, multiple buying options, and personalized installation and service. We deliver the promise.


  • We Deliver the Promise.
  • Call Us: 888-229-9245