The Associated Press reports that MillerCoors LLC s has signed a 15-year lease for office space in its new headquarters of Chicago. The company -- a joint venture of SABMiller''s U.S. unit and Molson Coors Brewing Co. -- said it will move into about 130,000 square feet of the building at 250 S. Wacker Drive in June 2009. Some 400 employees will work there -- part of the pairing''s effort to save on costs -- including senior executives, as well as employees in marketing, human resources, legal, finance and other divisions. Many of the employees will be shifted from SABMiller''s U.S. headquarters in Milwaukee and Molson Coors'' headquarters in Golden, Colo. Between 150 and 175 employees will be coming from each city. MillerCoors Chief Executive Leo Kiely said in a statement MillerCoors will also maintain "significant operations" in both those cities, and plans to make major investments in those breweries and stay connected to the communities.