TGS ASA — Director's Dealing 2020

Feb 28, 2020

Mandatory Notification of Trades

Mandatory Notification of Trades

ASKER, NORWAY (28 February 2020) - In February 2019, TGS implemented an Employee

Share Purchase Plan (ESPP) pursuant to which eligible employees are allowed to

purchase TGS common shares at a discount through payroll deductions.  The ESPP

operates in six-month periods, and at the end of each period, employees have the

option to purchase stock at a 15% discount to the market price at the time of

purchase.  The plan sets a maximum purchase of 100 shares per employee per six-

month period.  On February 24, 2020 the following primary insiders purchased

shares as participants in the ESPP.  The schedule attached reflects the holdings

of the primary insiders following the purchase.

---- Katja Akentieva -- 100 shares

---- Fredrik Amundsen -- 100 shares

---- William J.C. Ashby -- 100 shares

---- Kristian Kuvaas Johansen -- 100 shares

---- Tana LaDon Pool -- 100 shares

---- Sven Borre Larsen -- 100 shares

---- Vivi Suhr Engebretsen -- 62 shares

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, 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 principle 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:

Fredrik Amundsen

Chief Financial Officer

Tel:  +47 995 89882

Email:  Fredrik.Amundsen@tgs.com

This information is subject to the disclosure requirements pursuant to Section

5-12 the Norwegian Securities Trading Act