Transaction Technology, Clearing and Settlement, Credit/Collateral Optimization, Price Indices NGX headquartered in Calgary, Alberta, Canada, provides electronic trading, central counterparty clearing and data services to the North American natural gas and electricity markets. Since beginning operations in February 1994, NGX has developed the AB-NIT (?AECO??) hub into one of the most liquid spot and forward energy markets in North America. In 2008, NGX and Intercontinental Exchange (ICE) launched an operational alliance where by NGX uses ICE's front end trading technology and provides clearing services for ICE's US physical gas products. NGX is wholly owned by TMX Group Inc. which collectively manages all aspects of Canada's senior and junior equity markets.