NiCor.com energy companies of Nicor website

About NiCor.com

Nicor has been part of the fabric of the communities in northern Illinois and the Chicago suburbs for five decades.  The corporation's largest subsidiary, Nicor Gas, was founded in 1954 as Northern Illinois Gas and today is one of the largest natural gas distribution companies in the country, serving more than two million customers in 643 communities.  Nicor Gas operates a network of more than 34,000 miles of pipelines, connected to the largest underground storage facilities in the country.