By OGJ editors
HOUSTON, June 2 -- Royal Dutch Shell PLC has made changes to its senior management structure effective July 1.
Peter Voser will become chief executive officer.
Marvin Odum, currently executive vice-president for EP Americas, will become director for upstream Americas.
Malcolm Brinded, currently executive director for exploration and production, will become executive director of upstream international.
Matthias Bichsel, who is currently executive vice-president for exploration and production technology, will be the director of projects and technology.