At least four Am Law 100 firms are advising on a pair of billion-dollar deals that will reshape the face of the U.S. nuclear industry.

In the larger of the two transactions, Dominion Energy Inc. announced on Jan. 3 that it would acquire South Carolina utility Scana Corp. in a $7.9 billion cash-and-stock deal. McGuireWoods and Morgan, Lewis & Bockius picked up roles representing Richmond, Virginia-based Dominion, while Mayer Brown has taken the lead for Scana.