Nicor Gas can also be reached at 1-888-642-6748
Nicor regional offices are located throughout Northern Illinois and are available by appointment only.
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 641 communities in the northern third of Illinois.
Nicor Gas operates a network of more than 32,000 miles of pipelines, connected to the largest underground storage facilities in the country. This helps ensure reliable natural gas delivery to customers year round.