White & Case is representing Houston’s Calpine Corp. in its pending acquisition by an investor group led by Energy Capital Partners. The investor group has turned to Latham & Watkins for the $5.6 billion deal.

The Calpine representation is just the latest for White & Case. The firm represented Calpine in its $1.05 billion acquisition of Noble Americas Energy Solutions and represented the company in 2013 in a $625 million Texas power plant acquisition.