Petroleum Geo-Services 2004 Fourth Quarter and Preliminary Year-End Results Webcast and Conference Call Contact Details

Petroleum Geo-Services 2004 Fourth Quarter and Preliminary
Year-End Results Webcast and Conference Call Contact Details 


OSLO, Norway, Feb. 21  /PRNewswire-FirstCall/ -- Petroleum Geo-Services ASA
("PGS" or the "Company") (OSE and NYSE: PGS) as previously announced will
release its 2004 fourth quarter and preliminary year-end financial results on
Friday, February 25, 2005 at approximately 3:00 p.m. Central European Time
(CET) (9:00 a.m. Eastern Time (ET)). A webcast and conference call have been
scheduled that same day at 3:30 p.m. CET (9:30 a.m. ET), to discuss PGS' fourth
quarter and preliminary year-end financial results. The contact details for
this service are detailed below.

As previously announced the release and the slide presentation will be based on
Norwegian GAAP which is consistent with financial information released for
previous quarters in 2004. The 2004 quarterly financial information based on US
GAAP is expected to be provided mid-March.

The news release concerning the 2004 fourth quarter and preliminary year- end
financial results and a corresponding slide presentation will be posted at
Petroleum Geo-Services' web site at http://www.pgs.com/. Interested parties can
listen to the conference call and management's remarks to the slide
presentation over the Internet or by telephone.

To participate on the simulcast of the conference call over the Internet,
please visit PGS' web site, http://www.pgs.com/, at least 15 minutes early, to
register and to download and install any necessary audio software.

Alternatively, to access the live broadcast of the conference call by
telephone, please dial-in at the number provided below, corresponding to your
location:

      Location                     Dial-In Number
      U.S. and Canada (Toll-Free): [phone]
   ** International (Toll-Free):   +00 800 4363 7976
      International (Toll):        [phone]



**  Participants dialing in from Finland (990), Australia (0011), Hong Kong
(001), Japan (001), Korea (002), Singapore (001), or Thailand (001) should use
the designated International Access Code (+) specified here in place of (00).

The telephone will be open for questions at the conclusion of management's
remarks.

For those that cannot listen to the live conference call, a replay of the
webcast will be made available at PGS' website, http://www.pgs.com/.
Alternatively, a digital reply will be available shortly after the conclusion
of the conference call, through Friday, March 4, 2005 at [phone] (U.S.
and Canada Toll Free) or [phone] (International Toll).  Reference
Access Code 639038.

Petroleum Geo-Services is a technologically focused oilfield service company
principally involved in geophysical and floating production services. PGS
provides a broad range of seismic and reservoir services, including
acquisition, processing, interpretation, and field evaluation.  PGS owns and
operates four floating production, storage and offloading units (FPSOs) and
owns a small oil and gas company.  PGS operates on a worldwide basis with
headquarters at Lysaker, Norway.  For more information on Petroleum Geo-
Services visit http://www.pgs.com/.

The information included herein contains certain forward-looking statements
within the meaning of Section 27A of the Securities Act of 1933 and Section 21E
of the Securities Exchange Act of 1934. 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 as disclosed by the Company in its
filings with the Securities and Exchange Commission including the Company's
most recent Annual Report on Form 20- F for the year ended December 31, 2003. 
As a result of these factors, actual events may differ materially from those
indicated in or implied by such forward-looking statements.

   For details, contact:

   Ola Bosterud
   Sam R. Morrow
   Phone: [phone]

   US Investor Services,
   Renee Sixkiller,
   Phone: [phone]


DATASOURCE: Petroleum Geo-Services ASA



CONTACT:  Ola Bosterud, or Sam R. Morrow, [phone], or US Investor

Services, Renee Sixkiller, [phone], all for Petroleum Geo-Services

ASA



Web site: http://www.pgs.com/ 

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