Including the assumption of debt, Constellation on Friday valued the cash-and-stock deal for the privately held Calpine at $26.6 billion.

Constellation is buying natural gas and geothermal power provider Calpine for $16.4 billion, joining together two of the country's biggest power companies. The acquisition would create the nation ...

Constellation Energy Corp. is nearing an acquisition of Calpine Corp., people familiar with the matter said, in what would be one of the biggest ever deals in the power generation sector.

CEG set to pay mostly in stock, absorb $12 bln Calpine debt Deal talks advanced, could come as soon as Monday Would be largest U.S. power M&A deal since 2007 Calpine gas plants complement CEG's ...

Constellation is in talks to buy Calpine in a transaction that would value the power company at close to $30 billion, including debt, the people said. The deal is expected to be finalized next ...

Calpine, the largest private company in Houston, announced a deal to be acquired by Baltimore-based Constellation for approximately $16.4 billion Friday morning. Constellation would buy Calpine ...

Constellation will buy Calpine with 50 million of its shares and $4.5 billion in cash. It will also assume about $12.7 billion in Calpine debt. The total value of the deal will be about $26.6 billion.