ION Geophysical Corporation announced the promotion of Ken Williamson to Executive Vice President and Chief Operating Officer of its GeoVentures division and the addition of Chris Usher as Executive Vice President and Chief Operating Officer of a new ION GeoScience division. Both appointments are effective immediately. Mr. Williamson joined ION in 2006 as Vice President of Integrated Seismic Solutions, now GeoVentures, and was promoted to Senior Vice President in January 2007.

Under his leadership, GeoVentures has been the spearhead of ION's E&P solutions strategy and a key driver of ION's growth. Prior to joining ION, Mr. Williamson held various leadership positions at Western Geophysical, which became part of WesternGeco. Mr. Usher joins ION from Global Geophysical Services Inc., where he served as Chief Technology Officer since January 2010.