NGX is a leading North American energy exchange based in Calgary. Since 1994, NGX's unique market model has provided traders with one of the most highly liquid, secure and efficient environments available for trading and clearing natural gas and electricity contracts. NGX is wholly owned by TSX Group, which collectively manages all aspects of Canada's senior and junior equity markets.

Data supplied: Morningstar offers two data sets containing NGX data. The public set of NGX data offered by Morningstar contains price indices for natural gas at the following locations: Alberta, Emerson, Empress, Station #2 and Union Dawn. The private set of NGX data offered by Morningstar contains US and Canadian forward market settlement data by hub location, as traded on the NGX.