Enbridge Pipeline System and lower peninsulas of Michigan before crossing into Ontario, while the southern route circles south of Lake Michigan through Illinois and Indiana before reaching Michigan. There are 59 pumping stations in the pipeline system, and the actual pipes range in diameter from . One major junction point is in Clearbrook, Minnesota where the pipeline connects to the Minnesota Pipeline, which carries crude to the Pine Bend Refinery in Rosemount, Minnesota. The North Dakota Pipeline Company system of pipeline also has a connection in Clearbrook, linking the Mandan Refinery in Mandan, North Dakota. The Murphy Oil refinery in Superior, Wisconsin, is
Central Europe Pipeline System out against a part of the pipeline in Southern-Germany by Red Army Faction sympathisers. At the end of the Cold War the system was significantly reduced as various military airports that used the system were closed, such as Bitburg Air Base and Soesterberg Air Base. However, in some other places expansion of the pipeline continued and in October 2008 construction of of additional pipeline was completed between Aalen and Leipheim. Since 1959, excess capacity of the pipeline may be used by civilian users. Currently, around 90% of the fuel transported through the system is for civilian users, customers including various