Oil tankers are a common site in Casco Bay, and for good reason. The Portland area is a major hub for oil shipments that can trace its history back to World War II. In 1941 a pipeline was built between Montreal and Portland that still is in service today. It begins with oil being delivered by tanker ships to marine terminals in South Portland.
The facility includes 23 oil tanks and a capacity of 3.5 million barrels of crude oil. The oil is then pumped through two separate pipelines which cross the mountains of New Hampshire and Vermont and eventually extend to Montreal.
Portland Harbor Oil Tankers Unloading
It takes between 36-43 hours for the oil to reach its destination where it is processed in one of two refineries.
The pipeline extends 236 miles below ground level.