Baltimore-based Constellation, the nation’s largest operator of nuclear power plants, is acquiring Calpine Corp.

Constellation is buying power natural gas and geothermal power provider Calpine in a cash-and-stock deal valued at ...

U.S. nuclear power provider Constellation Energy on Friday agreed to buy privately-held natural gas and geothermal company ...

Baltimore-based energy company Constellation’s plans to acquire a Houston, Texas-based natural gas producer in a $26.6 billion deal will boost the nation’s biggest energy firm right as the U.S. faces ...

Constellation Energy Corp. shares surged to a record high after agreeing to acquire closely held Calpine Corp. for $16.4 ...

In interesting timing, Friday's announcement came on the silver anniversary of the disastrous AOL/Time Warner merger.

Separately, Calpine and Constellation are already among the largest power generation companies in the country.

Constellation Energy Corp. is nearing an acquisition of Calpine Corp., people familiar with the matter said, in what would be ...

Constellation is buying natural gas and geothermal power provider Calpine for $16.4 billion, joining together two of the ...

Constellation Energy Corp. shares surged to a record high after agreeing to acquire closely held Calpine Corp. for $16.4 ...

New York, Pennsylvania and Virginia. The buyout will also create the Constellation will buy Calpine with 50 million of its shares and $4.5 billion in cash. It will also assume about $12.7 billion ...