EX-21.01 4 subsidiaries.htm EXHIBIT 21.01 NICOR INC SUBSIDARIES subsidiaries.htm
Nicor Inc.
Form 10-K
Exhibit 21.01

NICOR INC.
Subsidiary Listing
December 31, 2009



 
Subsidiary
Jurisdiction
Northern Illinois Gas Company (doing business as Nicor Gas Company)
IL
Nicor Enerchange, L.L.C.
IL
Birdsall, Inc.
FL