SAN DIEGO — Leonard A. Comma has been promoted to president and chief operating officer of Jack in the Box Inc. He succeeds Linda A. Lang, who had been president since February 2010. Ms. Lang remains chairman and chief executive officer.

Mr. Comma most recently was executive vice-president and c.o.o. since 2010. He has been with Jack in the Box since 2001, holding several positions, including vice-president of operations, Division II, and senior vice-president. Prior to joining Jack in the Box Inc., he was a regional manager for ExxonMobil.

He received a bachelor’s degree in finance from Drexel University in Philadelphia and a master’s degree in business administration from Nova Southeastern University in Fort Lauderdale, Fla.

“Lenny has demonstrated outstanding leadership ability in various roles with Jack in the Box,” Ms. Lang said. “Since becoming chief operating officer in 2010, Lenny launched a number of internal programs that have improved guest service and strengthened restaurant operations. The insight he’s gained while overseeing major functional areas of the company, along with his strong background in restaurant and retail operations, will serve the organization well as we complete our refranchising strategy and continue growing our Jack in the Box brand.”