Spectra Energy Partners, L.P., through its subsidiaries and equity affiliates, is engaged in the transmission, storage and gathering of natural gas, the transportation and storage of crude oil, and the transportation of natural gas liquids (NGLs). The Company's segments include U.S. Transmission, Liquids and Other. The U.S. Transmission business primarily provides transmission, storage, and gathering of natural gas for customers in various regions of the northeastern and southeastern United States. The U.S. Transmission segment also processes natural gas on its Texas Eastern system. The Liquids business provides transportation and storage of crude oil for customers in central United States and Canada. The Company has over 15,000 miles of transmission and transportation pipelines, and the storage of natural gas in underground facilities with aggregate working gas storage capacity of approximately 170 billion cubic feet (Bcf) in the United States and Canada.