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HOUSTON, Dec. 21 /PRNewswire-FirstCall/ — GX Technology Corporation
(GXT), a leading seismic imaging service provider and a subsidiary of
Input/Output, Inc. (NYSE: IO), announced today the full commercial release of
its Reverse Time Migration (RTM) technology. RTM, a highly compute-intensive
algorithm, has been developed to improve imaging in areas where complex salt
conditions have provided serious imaging challenges to the oil & gas
companies. Sub-salt plays are prevalent in many exploration arenas, including
the Gulf of Mexico, West Africa, and the coast of Brazil.

“At GXT, we understand the challenges faced by the E&P companies in
searching for hydrocarbons in these highly complex areas and we continue to
develop our portfolio of Image-Driven(TM) technologies, with RTM forming one
of the cornerstones for our sub-salt and salt-flank imaging solutions,” stated
Mick Lambert, President of GX Technology. “We anticipate strong market demand
for this imaging technology and will be expanding our clustered computing
capacity to meet the demand of our clients and deliver results in time for the
upcoming lease sales in the GOM.”

In the last four weeks, GXT has been awarded their first commercial
contracts to implement RTM, and is currently imaging the projects at the main
advanced imaging center in Houston, Texas.

About GXT

GX Technology (GXT), a subsidiary of Input/Output, Inc., is a leading
provider of Image-Driven(TM) seismic solutions. Oil and gas companies apply
GXT’s advanced imaging solutions to produce the highest fidelity land and
marine subsurface images and reduce the risk and cost of finding and producing
hydrocarbons. The company’s solutions include start-to-finish seismic
acquisition programs, time processing, pre-stack depth and time imaging,
anisotropic imaging, wavelet-based AVO analysis, 4-D and multi-component
services, and fracture detection and modeling. GXT also provides software and
services for seismic acquisition planning, survey design and modeling. GXT is
a Houston-based company that operates regional service centers in Denver,
London, Calgary, Aberdeen, Caracas, and Port Harcourt. Additional information
is available at http://www.i-o.com .

About I/O

I/O is a leading, technology-focused seismic solutions provider. The
company provides cutting-edge seismic acquisition equipment, software, and
planning and seismic processing services to the global oil and gas industry.
I/O’s technologies are applied in both land and marine environments, in
traditional 2D and 3D surveys, and in rapidly growing areas like time-lapse
(4D) reservoir monitoring and full-wave imaging. Headquartered in Houston,
Texas, I/O has regional offices in Canada, Latin America, Europe, China,
Russia, Africa and the Middle East. Additional information is available at
http://www.i-o.com .

    "Image-Driven" is a trademark of GX Technology Corporation

     For More Information Contact:
     Kelly Smith
     I/O Corporate
     +1 281 879 3593

     Piers Gormly
     GX Technology
     +1 713 789 7250

The information included herein contains forward-looking statements within
the meaning of Section 27A of the Securities Act of 1933 and Section 21E of
the Securities Exchange Act of 1934. Actual results may vary fundamentally
from those described in these forward-looking statements. All forward-looking
statements reflect numerous assumptions and involve a number of risks and
uncertainties. These risks and uncertainties include risk factors that are
disclosed by I/O from time to time in its filings with the Securities and
Exchange Commission.

SOURCE Input/Output, Inc.; GX Technology Corporation

CONTACT: Kelly Smith of I-O Corporate, +1-281-879-3593; or Piers Gormly
of GX Technology Corporation, +1-713-789-7250
Web site: http://www.i-o.com
(IO)