7087803700
3501 S LARAMIE, STICKNEY, IL, 60804, 
3128482938
180 N. LASALLE STREET, SUITE 3400, CHICAGO, IL, 60601, 
4) AT T ILLINOIS AND ITS AFFILIATES
10) CLAYCO, INC.
11) CONSTELLATION ENERGY GENERATION, LLC
13) GLOBETROTTERS ENGINEERING CORPORATION
15) HNTB CORPORATION
6302971969
10230 S BELL, CHICAGO, IL, 60643, 
5135683926
25 EAST SUPERIOR STREET, 2005, CHICAGO, IL, 60611, 
7735043973
180 N. LASALLE STREET, SUITE 3400, CHICAGO, IL, 60601, 
4) AT T ILLINOIS AND ITS AFFILIATES
10) CLAYCO, INC.
11) CONSTELLATION ENERGY GENERATION, LLC
13) GLOBETROTTERS ENGINEERING CORPORATION
15) HNTB CORPORATION
3128482938
180 N. LASALLE STREET, CHICAGO, IL, 60601, 
4) AT T ILLINOIS AND ITS AFFILIATES
10) CLAYCO, INC.
11) CONSTELLATION ENERGY GENERATION, LLC
13) GLOBETROTTERS ENGINEERING CORPORATION
15) HNTB CORPORATION
8473445236
251 HENRY LANE, LAKE BARRINGTON, IL, 60010,