PGS ASA

Legal Proceedings Report • Feb 16, 2015

PGS wins patent dispute with EMGS

PGS wins patent dispute with EMGS

February 16, 2015: Oslo, Norway, Petroleum Geo-Services ASA ('PGS' or the

'Company') today announces that Oslo District Court in its judgment of 13

February 2015 ruled in favor of PGS in the lawsuit filed by ElectroMagnetic

GeoServices ASA ('EMGS') against PGS for patent infringement relating to PGS'

Towed Streamer EM technology. The court found that EMGS' patent NO 324 454 (the

'EMGS Patent') is invalid and that PGS' Towed Streamer EM system therefore does

not infringe the EMGS Patent. PGS was also awarded legal fees of NOK 15,292,917.

Oslo District Court found that all the elements of the EMGS Patent were

sufficiently described (anticipated) by four independent written articles (prior

art). The judgment was thorough and well written, and its conclusion as expected

by PGS.

EMGS may appeal the judgment within one month from formal notice.

FOR DETAILS, CONTACT:

Rune Olav Pedersen, General Counsel & SVP Communications and Marketing

Phone:  +47 67 51 57 06

Mobile:  +47 90 81 63 37

Bård Stenberg, VP IR & Corporate Communications

Phone:  +47 67 51 43 16

Mobile:  +47 99 24 52 35

****

Petroleum Geo-Services is a focused marine geophysical company providing a broad

range of seismic and reservoir services, including acquisition, imaging,

interpretation, and field evaluation. The Company's MultiClient data library is

among the largest in the seismic industry, with modern 3D coverage in all

significant offshore hydrocarbon provinces of the world. PGS operates on a

worldwide basis with headquarters at Lilleaker Oslo, Norway.

For more information on Petroleum Geo-Services visit www.pgs.com.

****

The information included herein contains certain forward-looking statements that

address activities, events or developments that the Company expects, projects,

believes or anticipates will or may occur in the future. These statements are

based on various assumptions made by the Company, which are beyond its control

and are subject to certain additional risks and uncertainties. The Company is

subject to a large number of risk factors including but not limited to the

demand for seismic services, the demand for data from our multi-client data

library, the attractiveness of our technology, unpredictable changes in

governmental regulations affecting our markets and extreme weather conditions.

For a further description of other relevant risk factors we refer to our Annual

Report for 2013. As a result of these and other risk factors, actual events and

our actual results may differ materially from those indicated in or implied by

such forward-looking statements.The reservation is also made that inaccuracies

or mistakes may occur in the information given above about current status of the

Company or its business. Any reliance on the information above is at the risk of

the reader, and PGS disclaims any and all liability in this respect.

[HUG#1894637]