April 10, 2012: Oslo, Norway, Petroleum Geo-Services ASA ('PGS' or the
'Company') routinely releases information about 3D vessel utilization after the
end of each quarter.

Summary of vessel utilization:

+---------------------------------------+-----------+--------------------------+
|                                       |           |Quarter ended December 31,|
|Approximate allocation of PGS total 3D |  Quarter  |                          |
|towed streamer capacity                |   ended   |                          |
|                                       | March 31, |                          |
+---------------------------------------+-----+-----+--------------------------+
|                                       |2012 |2011 |           2011           |
+---------------------------------------+-----+-----+--------------------------+
|Contract seismic                       |  57%|  60%|                       67%|
+---------------------------------------+-----+-----+--------------------------+
|MultiClient seismic                    |  31%|  20%|                        8%|
+---------------------------------------+-----+-----+--------------------------+
|Steaming                               |   6%|  12%|                       18%|
+---------------------------------------+-----+-----+--------------------------+
|Yard                                   |   5%|   8%|                        7%|
+---------------------------------------+-----+-----+--------------------------+
|Standby                                |   1%|   0%|                        0%|
+---------------------------------------+-----+-----+--------------------------+

PGS will release its Q1 2012 financial results on Tuesday May 8, 2012, at
approximately 8:00 am Central European Time (CET), with a corresponding
presentation, webcast and conference call scheduled for 9:00 am CET, followed by
a conference call at 3:00 pm CET.

 FOR DETAILS, CONTACT:


 Bård Stenberg, Investor Relations Manager
 Phone:   +47 67 51 43 16
 Mobile: +47 99 24 52 35






                                      ****
Petroleum  Geo-Services is a focused 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 multi-client data library. PGS operates on a worldwide basis with
headquarters at Lysaker, 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 2011. 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.


This information is subject of the disclosure requirements acc. to §5-12 vphl
(Norwegian Securities Trading Act)


[HUG#1601040]