Anheuser-Busch Cos., which brews Budweiser and Bud Light, said Friday it bought the Rolling Rock beer brand from InBev USA, the U.S. subsidiary of Belgian-Brazilian brewer InBev SA, for $82 million. Under the agreement announced by the two companies, Anheuser-Busch will use the brand to expand its portfolio of products and begin brewing Rolling Rock and Rock Green Light in August. Meanwhile, InBev said it will sell its brewery in Latrobe, Pa., to focus its U.S. business on imported beers and is currently in discussion with potential buyers.