Robert L. Digan II was hired by Semco Energy as its senior v.p. and CFO. Digan joins SEMCO from Supershuttle International.
United Cities Gas Co. has promoted Ann S. Baldwin from purchasing assistant manager to purchasing manager.
Scott B. Foster has left the International Energy Agency in Paris to join Cambridge Energy Research Associates. CERA also hired Gary Hunt, former COO at East Bay Municipal Utilities. He will serve as the company's North American electric power project director. Hunt will advise clients on responses to changes in the electric power business.