Enbridge's extensive pipeline systems are located in strategically important geographical areas, giving us an unparalleled ability to expand our energy delivery networks throughout North America.
On any single day, Enbridge is the largest single conduit of crude oil into the United States, moving 13 percent of U.S. daily imports. Our major liquids pipeline systems include the U.S. portion of the Enbridge Mainline System, also known as the Lakehead System; the North Dakota System; and the Spearhead and Ozark pipelines. These pipeline systems are owned by Enbridge Energy Partners, L.P. and Enbridge (U.S.) Inc., an indirect and wholly owned subsidiary of Enbridge Inc.
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Natural Gas Pipelines
About 15 percent of Texas natural gas production is transported through our three major systems, the Anadarko, East Texas and North Texas Systems. Together, these systems comprise about 11,500 miles of natural gas gathering and transmission pipelines as well as 25 processing plants and 9 treating plants. These systems are owned by Enbridge Energy Partners, L.P.
Enbridge Inc. holds an interest in the Alliance and Vector transmission pipelines. Alliance Pipeline transports natural gas from the Western Canada Sedimentary Basin to the Chicago area, where it connects with the Aux Sable natural gas liquids extraction and fractionation facility, another Enbridge joint venture. Vector Pipeline transports natural gas from Chicago to Dawn, Ontario, for use by local distribution and retail customers in Illinois, Indiana, Michigan and Ontario.
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About 40% of the deepwater natural gas production in the Gulf of Mexico is transported through our offshore pipelines. Enbridge has ownership in 11 natural gas gathering and transmission pipelines and one oil pipeline in four major pipeline corridors in Louisiana and Mississippi offshore waters. These systems include approximately 1,200 miles of underwater pipe and offshore and onshore facilities. Enbridge offshore pipeline systems are owned in full or in part by Enbridge Inc.
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