Vessel Allocation Q4 2009

January 6, 2010: Oslo, Norway, Petroleum Geo-Services ASA (?PGS? or the
?Company?) routinely releases information about vessel utilization around the
end of each quarter.

Summary of vessel utilization:

+--------------------------------------+-----------+---------------------------+
|  |   |Quarter ended September 30,|
|Approximate allocation of PGS total | Quarter | |
|3D towed streamer capacity | ended | |
| | December | |
| | 31, | |
+--------------------------------------+-----+-----+---------------------------+
|  |2009 |2008 | 2009 |
+--------------------------------------+-----+-----+---------------------------+
|Contract seismic |  60%| 64%| 73%|
+--------------------------------------+-----+-----+---------------------------+
|MultiClient seismic | 19%| 13%| 16%|
+--------------------------------------+-----+-----+---------------------------+
|Steaming | 15%| 16%| 8%|
+--------------------------------------+-----+-----+---------------------------+
|Yard | 6%| 5%| 3%|
+--------------------------------------+-----+-----+---------------------------+
|Standby | 0%| 2%| 0%|
+--------------------------------------+-----+-----+---------------------------+

The vessel statistics for the fourth quarter 2009 excludes Nordic Explorer,
which was converted to a 2D/source vessel, from mid July 2009 and Ocean
Explorer, which was converted to a 2D/source vessel from end September 2009.
Orient Explorer was at yard during most of December for de-rigging before
returning the vessel to the vessel owner as the charter agreement expired by end
2009. The new vessel Ramform Sterling entered the fleet mid July 2009.

PGS will release its Q4 2009 financial results on Monday, February 22, 2010, at
approximately 8:00 am Central European Time (CET).


FOR DETAILS, CONTACT:


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

Tore Langballe, SVP Corporate Communications
Phone:   +47 67 51 43 75
Mobile: +47 90 77 78 41

US Investor Services
Phone: +1 281 509 8712

****
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 2008. 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)


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