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

Texas' surging growth in power demand was a big driver in the $26.6 billion deal to acquire Houston's largest private company ...

Constellation Energy Group Inc. has agreed to buy a Texas company in a deal worth more than $26 billion that will create one ...

Constellation Energy shares could remain in focus on Monday after surging more than 25% Friday as the energy giant announced ...

Constellation Energy said the company is applying for federal funding as it evaluates whether to put one or more small ...

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

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

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 ...

The $16.4 billion purchase agreement would combine the biggest U.S. nuclear operator with Calpine’s natural gas assets.

Competitive generation giant Constellation has agreed to acquire Calpine Corp. in a $16.4 billion deal that is set to create ...

Baltimore-based Constellation Energy Corp. will acquire Houston-based energy company Calpine Corp. in a deal worth $16.4 ...