HOUSTON, April 30, 2012 /PRNewswire/ -- ION Geophysical Corporation (NYSE: IO) announced today that it will release first quarter 2012 financial results on Wednesday, May 2, 2012 after the market closes.  In conjunction with the release, ION has scheduled a conference call, which will be broadcast live over the Internet, for Thursday, May 3 at 11:00 a.m. Eastern Time (10:00 a.m. Central).

For those who cannot listen to the live call, a telephonic replay will be available through May 17, 2012 and may be accessed by calling (303) 590-3030 using pass code 4533628#.  Also, an archive of the webcast will be available shortly after the call on the company's website at http://investorrelations.i-o.com for approximately 12 months.

ABOUT ION:
ION Geophysical Corporation is a leading provider of geophysical technology, services, and solutions for the global oil & gas industry. ION's offerings are designed to allow E&P operators to obtain higher resolution images of the subsurface to reduce the risk of exploration and reservoir development, and to enable seismic contractors to acquire geophysical data safely and efficiently. Additional information about ION is available at www.iongeo.com.

CONTACTS:
Gregory J. Heinlein
Senior Vice President and Chief Financial Officer
+1.281.552.3011

Jack Lascar
DRG&L
+1.713.529.6600

SOURCE ION Geophysical Corporation