Spectra Energy Corp owns and operates a portfolio of natural gas-related energy assets in North America. It operates through four segments: Spectra Energy Partners, Distribution, Western Canada Transmission & Processing, and Field Services. The Spectra Energy Partners segment engages in the transmission, storage, and gathering of natural gas, as well as transportation and storage of crude oil and natural gas liquids (NGLs) for customers in various regions of the United States and Canada. Its natural gas pipeline systems consist of approximately 21,000 miles of transmission pipelines; and storage capacity comprises 300 billion cubic feet (Bcf). The Distribution segment offers natural gas storage, transmission, and distribution services for residential, commercial, and industrial customers in Canada. It has approximately 40,000 miles of main and service pipelines; storage capacity of approximately 163 Bcf; and transmission system of approximately 3,000 miles of high-pressure pipeline and mainline compressor stations. The Western Canada Transmission & Processing segment provides natural gas transmission, and gas gathering and processing services; and services to natural gas producers to remove impurities from the raw gas stream, including water, carbon dioxide, hydrogen sulfide, and other substances. It also extracts, fractionates, transports, stores, and markets NGLs for western Canadian producers and NGL customers. It serves local distribution companies, end-use industrial and commercial customers, marketers, and exploration and production companies. The Field Services segment gathers, compresses, treats, processes, transports, stores, and sells natural gas; produces, fractionates, transports, stores, and sells NGLs; recovers and sells condensate; and trades in and markets natural gas and NGLs. It owns or operates approximately 67,000 miles of gathering and transmission pipeline. The company was incorporated in 2006 and is headquartered in Houston, Texas.