X0707 D LIVE 0000866609 ION GEOPHYSICAL CORP 2105 CITYWEST BLVD SUITE 400 HOUSTON TX TEXAS 77042-2839 281.933.3339 DELAWARE INPUT OUTPUT INC Corporation true R. Brian Hanson 2105 City West Boulevard Suite 400 Houston TX TEXAS 77042-2839 Executive Officer Director President and Chief Executive Officer and Director Steven A. Bate 2105 City West Boulevard Suite 400 Houston TX TEXAS 77042-2839 Executive Officer Executive Vice President and Chief Financial Officer Kenneth G. Williamson 2105 City West Boulevard Suite 400 Houston TX TEXAS 77042-2839 Executive Officer Executive Vice President and Chief Operating Officer, E&P Technology & Services Christopher T. Usher 2105 City West Boulevard Suite 400 Houston TX TEXAS 77042-2839 Executive Officer Executive Vice President and Chief Operating Officer, E&P Operations Optimization Jamey S. Seely 2105 City West Boulevard Suite 400 Houston TX TEXAS 77042-2839 Executive Officer Executive Vice President, General Counsel and Corporate Secretary Colin T. Hulme 2105 City West Boulevard Suite 400 Houston TX TEXAS 77042-2839 Executive Officer Executive Vice President, Ocean Bottom Services Scott P. Schwausch 2105 City West Boulevard Suite 400 Houston TX TEXAS 77042-2839 Executive Officer Vice President and Corporate Controller James M. Lapeyre, Jr. 2105 City West Boulevard Suite 400 Houston TX TEXAS 77042-2839 Director Chairman David H. Barr 2105 City West Boulevard Suite 400 Houston TX TEXAS 77042-2839 Director Hao Huimin 2105 City West Boulevard Suite 400 Houston TX TEXAS 77042-2839 Director Michael C. Jennings 2105 City West Boulevard Suite 400 Houston TX TEXAS 77042-2839 Director Franklin Myers 2105 City West Boulevard Suite 400 Houston TX TEXAS 77042-2839 Director S. James Nelson, Jr. 2105 City West Boulevard Suite 400 Houston TX TEXAS 77042-2839 Director John N. Seitz 2105 City West Boulevard Suite 400 Houston TX TEXAS 77042-2839 Director Oil and Gas Over $100,000,000 06b false 2016-04-25 false true true false 2000 Oppenheimer & Co. Inc. 249 None None 85 Broad Street New York NY NEW YORK 10004 CA CALIFORNIA DE DELAWARE FL FLORIDA IL ILLINOIS LA LOUISIANA MA MASSACHUSETTS MO MISSOURI NH NEW HAMPSHIRE NJ NEW JERSEY NY NEW YORK NC NORTH CAROLINA OH OHIO OR OREGON TX TEXAS WI WISCONSIN false 189332500 145441786 43890714 Exchanged ~ $120.5M of 9.125% Sen Sec 2nd Priority Notes due 2021 and ~1.2M shares of common stock for ~$120.5M of outstanding 8.125% Sen Sec 2nd Priority Notes due 2018 ("Existing Notes") and purchased ~$26.9M of Existing Notes for ~$15M cash. false 67 0 3250000 0 false ION GEOPHYSICAL CORP /s/ Jamey S. Seely Jamey S. Seely Executive Vice President, General Counsel and Corp Secretary 2016-05-03