We consent to the incorporation by reference in Registration Statement No. 333-107377 of Nicor Inc. on Form S-8 of our report dated June 27, 2007, on the financial statements of the Nicor Gas Thrift Plan as of and for the years ended December 31, 2006 and 2005, appearing in this Annual Report on Form 11-K of Nicor Companies Savings Investment Plan and Nicor Gas Thrift Plan for the year ended December 31, 2006.