CHICAGO and BALTIMORE, April 28, 2011 /PRNewswire/ -- The boards of directors of Exelon Corporation (NYSE: EXC) and Constellation Energy (NYSE: CEG) announced today that they have signed a definitive agreement to combine the two companies in a stock-for-stock transaction.

A National Energy Summit & International Dialogue Alert, September 23 - 24, 2009 WASHINGTON, Sept.

Constellation Energy has announced that Kathleen Hyle, current senior vice president, will assume the role of COO of Constellation's overall commercial business and lead its new management team. Ms Hyle will report directly to chairman, president and CEO, Mayo Shattuck III.

Constellation Energy (NYSE:CEG) today announced that Kathleen W. Hyle, currently senior vice president, Constellation Energy, will assume the role of chief operating officer of the company's overall commercial business and lead its new management team.

MidAmerican Energy Holdings Company and Constellation Energy (NYSE: CEG) announced that MidAmerican today filed an application with the Maryland Public Service Commission requesting approval to acquire Baltimore Gas and Electric Company.