TGS : TGS Announces 3D Multi-client Onshore Survey in South Central Alberta, Canada

 TGS : TGS Announces 3D Multi-client Onshore Survey in South Central Alberta,
                                    Canada

CALGARY, CANADA (22 August 2013) - TGS, through its wholly-owned subsidiary
Arcis Seismic Solutions, announces a new 3D multi-client onshore survey, Three
Hills East, covering 150 km^2 (58 mi^2) in the south central plains of
Alberta, Canada.

The Three Hills East survey is designed to evaluate multiple zones from the
Devonian (Nisku), the Mississippian (Banff and Pekisko), and the Cretaceous
(Ellerslie and Ostracod) in the newly emerging Duvernay play. The survey's
optimal acquisition parameters, enhanced imaging and rock property assessments
will provide even greater assistance with the placement of horizontal wells in
this highly prospective area.

Permitting is underway and data acquisition is expected to commence in
September 2013. The seismic data will be processed by Arcis and final data
will be available to clients Q4 2013.

The survey is supported by industry funding.

Company summary

TGS-NOPECGeophysical Company (TGS) provides multi-client geoscience data to
oil and gas Exploration and Production companies worldwide. In addition to
extensive global geophysical and geological data libraries that include
multi-client seismic data, magnetic and gravity data, digital well logs,
production data and directional surveys, TGS also offers advanced processing
and imaging services, interpretation products, permanent reservoir monitoring
and data integration solutions.

For more information visitTGS online at www.tgs.com.


Forward-looking statements and contact information

All statements in this press release other than statements of historical fact
are forward-looking statements, which are subject to a number of risks,
uncertainties and assumptions that are difficult to predict, and are based
upon assumptions as to future events that may not prove accurate. These
factors include TGS' reliance on a cyclical industry and principal customers,
TGS' ability to continue to expand markets for licensing of data, and TGS'
ability to acquire and process data products at costs commensurate with
profitability. Actual results may differ materially from those expected or
projected in the forward-looking statements. TGS undertakes no responsibility
or obligation to update or alter forward-looking statements for any reason.

TGS-NOPEC Geophysical Company ASA is listed on the Oslo Stock Exchange
(OSLO:TGS).

TGS sponsored American Depositary Shares trade on the U.S. over-the-counter
market under the symbol "TGSGY".

For additional information about this press release please contact:

Kristian Johansen
Chief Financial Officer
Office: +47 667 69931
Cell: +47 47 60 33 34
Email: kristian.johansen@tgs.com

Will Ashby
Director Investor Relations and M&A

Office: +1 713 860 2184
Email: will.ashby@tgs.com

Rod Starr
Senior VP Western Hemisphere
Tel: +1 713 860 2100
Email: rod.starr@tgs.com

This information is subject of the disclosure requirements acc. to §5-12 vphl
(Norwegian Securities Trading Act)

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Source: TGS via Thomson Reuters ONE
HUG#1724341
 
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