Baltimore's Constellation Energy buying Calpine in a deal that joins two huge U.S. power companies George W. Bush gave fellow ...

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

Constellation Energy agreed to buy Calpine for $16.4 billion, combining two of the country’s largest electricity generators ...

Constellation Energy (CEG) is in focus, with its shares surging after it agreed to buy natural gas (NG=F) giant Calpine for ...

Constellation Energy shares shot 25% higher today as the company confirmed its intentions to purchase Calpine. Calpine ...

Constellation Energy Corp., an electricity provider whose stock has doubled over the last year on hopes it will help meet the ...

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

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

Constellation Energy struck a $26.6 billion deal to buy Calpine, uniting two of the U.S.'s largest power generators amid ...

Constellation Energy announces acquisition of Calpine, creating America's largest clean energy provider.

Constellation Energy jumped Friday after announcing that it will buy Calpine, adding geothermal and more natural gas to its ...

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