Nicor to Hold Third Quarter 2011 Earnings Conference Call on November 1, 2011

Nicor Inc. (NYSE: GAS) announced today that it is holding a conference call to discuss its third quarter and year-to-date 2011 financial results and full-year earnings outlook. The conference call will be held on Tuesday, November 1, 2011 at 8:30 a.m. Central, 9:30 a.m. Eastern time. Earnings information will be released before the market opens on the morning of Tuesday, November 1, 2011.

To hear the conference call live, please log on to Nicor’s corporate website at www.nicor.com, choose “Investor” and then select the webcast icon on the “Overview” page. A replay of the call will be available until 10:30 a.m. Central time, Wednesday, November 16, 2011. To access the recording, call (888) 286-8010, or (617) 801-6888 for callers outside the United States, and enter reservation number 21689868. The call will also be archived on Nicor’s corporate website for 90 days.

Nicor Inc. (NYSE: GAS) is a holding company and is a member of the Standard & Poor’s 500 Index. Its primary business is Nicor Gas, one of the nation’s largest natural gas distribution companies. Nicor owns Tropical Shipping, a containerized shipping business serving the Caribbean region and the Bahamas. In addition, the company owns and/or has an equity interest in several energy-related businesses. For more information, visit the Nicor website at www.nicor.com.