October 1 , 2015: OSLO, NORWAY, PGS will release its third quarter 2015 results on Friday, October 23, 2015 at approximately 8:00 am Central European Time (CET).

A presentation is scheduled the same day at 9:00 amCET at PGS' headquarters at Lilleakerveien 4C, Oslo, Norway. The event will be webcasted live and available for replay shortly after. A corresponding conference call is also set up for the presentation scheduled at 9:00 am CET. Contact details for this service is listed below.

An additional conference call is scheduled the same day at 3:00 pm CET. Contact details for this service is listed below.

The earnings release concerning the third quarter 2015 results and a corresponding presentation will be posted on www.newsweb.no and on PGS' web site www.pgs.com.

To watch the webcast over the internet, please visit PGS' web site, www.pgs.com, at least 10 minutes early to register and to download and install any necessary software.

To access the conference call scheduled at 9:00 am CET, please dial-in at the number provided below, corresponding to your location. The conference ID is 667755

LocationDial-In Number
Norway (toll free) 800 51 011
Norway (toll) 21 00 69 15
International (toll) +44 (0)20 3147 4971 or +1 212 444 0096
UK (toll free) 0800 279 6899
US (toll free) 1 877 894 2812

The telephone will be open for questions at the conclusion of management's remarks. A digital replay will be available shortly after the conference call and until October 30, 2015. The access number for this service is 9683488. Please access the replay by dial-in at the number provided below.

LocationDial-In Number
Norway (toll) +47 21 00 04 98
UK (toll free) +44(0)20 3427 0598
US (toll) +1 347 366 9565

To access the conference call scheduled at 3:00 pm CET, please dial-in at the number provided below, corresponding to your location. The conference ID is 690104.

LocationDial-In Number
Norway (toll free) 800 51 011
Norway (toll) 21 00 69 15
International (toll) +44 (0)20 3364 5721 or +1 917 286 8055
UK (toll free) 0800 279 4898
US (toll free) 1866 268 1186

The telephone will be open for questions at the conclusion of management's remarks. A digital replay will be available shortly after the conference call and until October 30, 2015. The access number for this service is 8368946. Please access the replay by dial-in at the number provided below.

LocationDial-In Number
Norway (toll) +47 21 00 04 98
UK (toll free) 0800 358 7735
US (toll) +1 347 366 9565

FOR DETAILS, CONTACT:

Bård Stenberg , VP IR & Corporate Communications
Mobile: +47 99 24 52 35

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Petroleum Geo-Services is a focused marine geophysical company providing a broad range of seismic and reservoir services, including acquisition, processing, interpretation, and field evaluation. The company also possesses the world's most extensive MultiClient data library. PGS operates on a worldwide basis with headquarters at Lilleaker Oslo, Norway.

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

This information is subject to the disclosure requirements pursuant to section 5-12 of the Norwegian Securities Trading Act.

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