Cadwalader, Wickersham & Taft is adding a nine-partner energy team from McDermott, Will & Emery to its Washington office.

According to a source familiar with the deal, who requested anonymity because the terms of the deal are still under discussion, the lawyers making the move include D.C.-based partners Paul Pantano Jr., co-head of McDermott’s energy and commodities group, and Karen Dewis, co-head of the firm’s mergers and acquisitions practice. Five other Washington-based partners will be moving to Cadwalader, as will a partner in McDermott’s London office and a partner in Houston.