UBS has hired a senior energy banker from rival Morgan Stanley to replace prominent rainmaker Stephen Trauber, who left the Swiss bank as head of its power team last autumn along with three of his team.

UBS has appointed Thomas Langford as global head of energy investment banking. He joins from Morgan Stanley, where he held the same role, and will be based in Houston. His hire fills the role left vacant since last September, when Trauber and his team moved to Citigroup.