TGS ASA — Earnings Release 2013

Jan 9, 2014

TGS Q4 2013 Update

TGS Q4 2013 Update

ASKER, NORWAY (9 January 2014) - Based on preliminary reporting from operating

units, TGS management expects net revenues for the fourth quarter of 2013 to be

approximately USD 270 million, bringing total estimated net revenues for 2013 to

approximately USD 882 million. The company has previously guided full year

revenues of USD 810 - 870 million, and the positive deviation is mainly caused

by record high late sales in the fourth quarter.

Multi-client investments for the fourth quarter are expected to be approximately

USD 90 million, to reach full year investments of approximately USD 437 million.

Management will give a full report of Q4 results on 6 February 2014.

Company summary

TGS-NOPEC Geophysical 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 visit TGS 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

Tel: +47 47 60 33 34

Email: kristian.johansen@tgs.com

Will Ashby

Director Investor Relations and M&A

Tel: +1 713 860 2184

Email: will.ashby@tgs.com

This information is subject of the disclosure requirements acc. to §5-12 vphl

(Norwegian Securities Trading Act)

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