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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>
<DIV style="font-family: 'Times New Roman',Times,serif">



<P align="center" style="font-size: 10pt"><B>As filed with the Securities and Exchange Commission on May&nbsp;13, 2005</B>



<P align="right" style="font-size: 10pt"><B>Registration No.&nbsp;333-______</B>



<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 1pt solid black; font-size: 1pt">&nbsp;</DIV>




<P align="center" style="font-size: 14pt"><B>UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION</B>

<DIV align="center" style="font-size: 12pt"><B>Washington, D.C. 20549</B>
</DIV>

<P align="center" style="font-size: 18pt"><B>FORM S-8</B>


<P align="center" style="font-size: 12pt"><B>REGISTRATION STATEMENT</B>


<DIV align="center" style="font-size: 12pt"><B>UNDER</B></DIV>


<DIV align="center" style="font-size: 12pt"><B>THE SECURITIES ACT OF 1933</B></DIV>


<P align="center" style="font-size: 24pt"><B>PETROLEUM GEO-SERVICES ASA</B>


<DIV align="center" style="font-size: 10pt">(Exact name of registrant as specified in its charter)</DIV>


<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="47%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="47%">&nbsp;</TD>
</TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="center" valign="top"><B>Kingdom of Norway</B><BR>
(State or other jurisdiction of<BR>
incorporation or organization)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>N/A</B><BR>
(I.R.S. Employer<BR>
Identification No.)</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><B>Strandveien 4<BR>
N-1366 Lysaker, Norway</B><BR>
(Address of principal executive offices)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>N/A</B><BR>
(Zip code)</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="center" style="font-size: 10pt"><HR size="1" noshade width="100%" align="center" color="#000000"></DIV>



<P align="center" style="font-size: 10pt"><B>TOP 10 SHARE BONUS PLAN</B>


<DIV align="center" style="font-size: 10pt"><B>GROUP 50 SHARE BONUS PLAN</B></DIV>


<DIV align="center" style="font-size: 10pt"><B>GROUP 70 SHARE BONUS PLAN</B></DIV>


<DIV align="center" style="font-size: 10pt">(Full title of the plan)</DIV>

<DIV align="center" style="font-size: 10pt"><HR size="1" noshade width="100%" align="center" color="#000000"></DIV>


<P align="center" style="font-size: 10pt"><B>Sam R. Morrow</B>


<DIV align="center" style="font-size: 10pt"><B>Senior Vice President &#151; Finance and Treasurer</B></DIV>


<DIV align="center" style="font-size: 10pt"><B>Petroleum Geo-Services ASA</B></DIV>


<DIV align="center" style="font-size: 10pt"><B>15150 Memorial Drive</B></DIV>


<DIV align="center" style="font-size: 10pt"><B>Houston, Texas 77079</B></DIV>


<DIV align="center" style="font-size: 10pt">(Name and address of agent for service)</DIV>



<P align="center" style="font-size: 10pt"><B>(281)&nbsp;509-8000</B>


<DIV align="center" style="font-size: 10pt">(Telephone number, including area code,</DIV>


<DIV align="center" style="font-size: 10pt">of agent for service)</DIV>





<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD style="font-size: 1pt" width="1%">&nbsp;</TD>
    <TD width="80%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD><!-- VRule -->
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD><!-- VRule -->
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>

    <TD width="1%">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD nowrap align="center" colspan="13"><B>CALCULATION OF REGISTRATION FEE</B></TD>
</TR>

<TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="left" colspan="13" style="border-bottom: 3px double #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD>&nbsp;</TD>
    <TD style="border-right: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Proposed Maximum</B></TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Amount of</B></TD>
    <TD>&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD>&nbsp;</TD>
    <TD style="border-right: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Aggregate Offering</B></TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Registration</B></TD>
    <TD>&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD nowrap align="left"><B>Title of Securities to be Registered</B></TD>
    <TD style="border-right: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Price (1)</B></TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Fee</B></TD>
    <TD>&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD width="1%" style="border-top: 1px solid #000000">&nbsp;</TD>
                <TD style="border-top: 1px solid #000000"><DIV style="margin-left:15px; text-indent:-15px">American Depositary Shares, each representing
one ordinary share, nominal value NOK 30 per

share</DIV></TD>
    <TD style="border-right: 1px solid #000000; border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-right: 1px solid #000000; border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD width="1%" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD width="1%" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-top: 1px solid #000000"><DIV style="margin-left:15px; text-indent:-15px">Ordinary shares, nominal value NOK 30 per share</DIV></TD>
    <TD style="border-right: 1px solid #000000; border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-right: 1px solid #000000; border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD width="1%" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD width="1%" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-top: 1px solid #000000"><DIV style="margin-left:30px; text-indent:-15px">Total</DIV></TD>
    <TD style="border-right: 1px solid #000000; border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD align="left" style="border-top: 1px solid #000000">$</TD>
    <TD align="right" style="border-top: 1px solid #000000">12,500,000</TD>
    <TD style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-right: 1px solid #000000; border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD align="left" style="border-top: 1px solid #000000">$</TD>
    <TD align="right" style="border-top: 1px solid #000000">1,472</TD>
    <TD style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD width="1%" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="left" colspan="13" style="border-top: 3px double #000000">&nbsp;</TD>
</TR>

<!-- End Table Body -->
</TABLE>
</DIV>

<P><HR noshade size="1" width="18%" align="left" color="#000000">

<DIV>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="left">(1)&nbsp;&nbsp;</TD>
    <TD>Estimated solely for the purpose of computing the registration fee pursuant to Rule
457(o) under the Securities Act. The American Depositary Shares (&#147;ADSs&#148;), each
representing one ordinary share, nominal value NOK 30 per share (&#147;Shares&#148;), of Petroleum
Geo-Services ASA (&#147;PGS&#148;), and the Shares being registered hereby consist of ADSs and Shares
to be acquired in open market purchases pursuant to the Top 10 Share Bonus Plan, the Group
50 Share Bonus Plan and the Group 70 Share Bonus Plan (collectively, the &#147;Plans&#148;). PGS is
hereby registering the offering of $2,500,000 aggregate offering price of ADSs and Shares
under the Top 10 Share Bonus Plan, $5,000,000 aggregate offering price of ADSs and Shares
under the Group 50 Share Bonus Plan and $5,000,000 aggregate offering price of ADSs and
Shares under the Group 70 Share Bonus Plan. Under the Plans, each eligible participant is
required to purchase in the open market within a specified period of time Shares and/or
ADSs in an amount equal to the net amount of the bonus (i.e., the gross amount of the bonus
net of any withholding taxes) received by such participant under the respective Plan. In
no event will the aggregate offering price of all securities offered from time to time
pursuant to this Registration Statement exceed $2,500,000 with respect to the Top 10 Share
Bonus Plan, $5,000,000 with respect to the Group 50 Share Bonus Plan or $5,000,000 with
respect to the Group 70 Share Bonus Plan.</TD>
</TR>

</TABLE>
</DIV>

<DIV style="width: 100%; border-bottom: 1pt solid black; margin-top: 10pt; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>






<P align="center" style="font-size: 10pt">&nbsp;
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">


<!-- TOC -->
<A name="toc"><DIV align="CENTER" style="page-break-before:always"><U><B>TABLE OF CONTENTS</B></U></DIV></A>

<P><CENTER>
<TABLE border="0" width="90%" cellpadding="0" cellspacing="0">
<TR>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
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	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="76%"></TD>
</TR>
<TR><TD colspan="9"><A HREF="#000">PART I</A></TD></TR>
<TR><TD colspan="9"><A HREF="#001">PART II</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#002">Item&nbsp;3. Incorporation of Documents by Reference</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#003">Item&nbsp;4. Description of Securities</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#004">Item&nbsp;5. Interests of Named Experts and Counsel</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#005">Item&nbsp;6. Indemnification of Directors and Officers</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#006">Item&nbsp;7. Exemption from Registration Claimed</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#007">Item&nbsp;8. Exhibits</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#008">Item&nbsp;9. Undertakings</A></TD></TR>
<TR><TD colspan="9"><A HREF="#009">SIGNATURES</A></TD></TR>
<TR><TD colspan="9"><A HREF="#010">INDEX TO EXHIBITS</A></TD></TR>
<TR><TD colspan="9"><A HREF="h25413exv23.htm">Consent of Ernst & Young AS</A></TD></TR>
<TR><TD colspan="9"><A HREF="h25413exv24.htm">Powers of Attorney</A></TD></TR>
</TABLE>
</CENTER>
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<P align="center" style="font-size: 10pt"><B>EXPLANATORY NOTE</B>



<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This Registration Statement relates to the ADSs and Shares of PGS that may be acquired under
the Plans. The ADSs and Shares acquired under the Plans are obtained through open market purchases
at prevailing market prices. Such transactions do not involve the original issuance by PGS of any
new Shares or result in a change in the number of outstanding Shares.


<P align="center" style="font-size: 10pt">-2-
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<!-- link1 "PART I" -->
<DIV align="left"><A NAME="000"></A></DIV>

<P align="center" style="font-size: 10pt"><B>PART I</B>



<P align="center" style="font-size: 10pt"><B>INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS</B>



<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Note: The document(s) containing the information concerning the Plans required by Item&nbsp;1 of
Form S-8 and the statement of availability of registrant information and any other information
required by Item&nbsp;2 of Form S-8 will be sent or given to participants as specified by Rule&nbsp;428 under
the Securities Act of 1933. In accordance with Rule&nbsp;428 and the requirements of Part&nbsp;I of Form
S-8, such documents are not being filed with the Securities and Exchange Commission either as part
of this Registration Statement or as prospectuses or prospectus supplements pursuant to Rule&nbsp;424
under the Securities Act. The registrant will maintain a file of such documents in accordance with
the provisions of Rule&nbsp;428. Upon request, the registrant will furnish to the SEC or its staff a
copy of any or all of the documents included in such file.


<P align="center" style="font-size: 10pt">-3-
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<!-- link1 "PART II" -->
<DIV align="left"><A NAME="001"></A></DIV>

<P align="center" style="font-size: 10pt"><B>PART II</B>



<P align="center" style="font-size: 10pt"><B>INFORMATION REQUIRED IN THE REGISTRATION STATEMENT</B>


<!-- link2 "Item&nbsp;3. Incorporation of Documents by Reference" -->
<DIV align="left"><A NAME="002"></A></DIV>

<P align="left" style="font-size: 10pt"><B>Item&nbsp;3. </B><B><I>Incorporation of Documents by Reference</I></B>



<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This Registration Statement incorporates herein by reference the following documents filed
with the SEC by PGS (SEC File No.&nbsp;001-14614) pursuant to the Securities Exchange Act of 1934:


<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="4%" nowrap align="left">1.&nbsp;&nbsp;</TD>
    <TD>PGS&#146; annual report on Form 20-F for the fiscal year ended December&nbsp;31, 2004;
and</TD>
</TR>

<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="4%" nowrap align="left">2.&nbsp;&nbsp;</TD>
    <TD>the description of PGS&#146; ADSs and shares contained in its registration statement
on Form 8-A filed with the SEC on December&nbsp;14, 2004, as that description may be updated
from time to time.</TD>
</TR>

</TABLE>


<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;All documents filed by PGS with the SEC pursuant to Sections&nbsp;13(a), 13(c), 14 and 15(d) of the
Exchange Act subsequent to the filing of this Registration Statement and prior to the filing of a
post-effective amendment to this Registration Statement which indicates that all securities offered
hereby have been sold, or which deregisters all securities then remaining unsold, shall be deemed
to be incorporated in this Registration Statement by reference and to be a part hereof from the
date of filing of such documents.


<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Any statement contained in this Registration Statement, in any amendment hereto or in a
document incorporated by reference herein shall be deemed to be modified or superseded for purposes
of this Registration Statement to the extent that a statement contained herein or in any
subsequently filed amendment to this Registration Statement or in any document that also is
incorporated by reference herein modifies or supersedes such statement. Any statement so modified
or superseded shall not be deemed, except as so modified or superseded, to constitute a part of
this Registration Statement.

<!-- link2 "Item&nbsp;4. Description of Securities" -->
<DIV align="left"><A NAME="003"></A></DIV>

<P align="left" style="font-size: 10pt"><B>Item&nbsp;4. </B><B><I>Description of Securities</I></B>



<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not Applicable.

<!-- link2 "Item&nbsp;5. Interests of Named Experts and Counsel" -->
<DIV align="left"><A NAME="004"></A></DIV>

<P align="left" style="font-size: 10pt"><B>Item&nbsp;5. </B><B><I>Interests of Named Experts and Counsel</I></B>



<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not Applicable.

<!-- link2 "Item&nbsp;6. Indemnification of Directors and Officers" -->
<DIV align="left"><A NAME="005"></A></DIV>

<P align="left" style="font-size: 10pt"><B>Item&nbsp;6. </B><B><I>Indemnification of Directors and Officers</I></B>



<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Norwegian law provides that a director or the chief executive officer of a Norwegian company
is liable for any loss or damage he has intentionally or negligently caused the company in the
performance of his duties. The shareholders may, by a majority resolution at a general meeting,
decide either to bring a claim against, or to discharge from liability, such director or chief
executive officer. Notwithstanding a decision at the general meeting to discharge a person from
liability or to reject a proposal to hold a person liable, shareholders owning at least 10% of the
share capital, or at least 10% the total number of shareholders, may within a limited period of
time bring a claim predicated on such liability on behalf of the company.


<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In addition, PGS has entered into indemnification agreements with each of its directors. Each
agreement provides that, in the event that such director was, is or becomes a party to any pending
or completed action, suit or proceeding, or any inquiry or investigation that leads to the
institution of any such action, suit or proceeding, by reason of or arising out of any event or
occurrence relating to anything done or not done by such director in the capacity as a director of
PGS, then PGS will indemnify such director to the fullest extent permitted by applicable law
against any and all expenses, judgments, fines and amounts paid in settlement. If so requested by
a director, PGS will advance expenses to such director within 10 business days of such request.


<P align="center" style="font-size: 10pt">II-1
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">

<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;PGS also has directors and officers liability insurance that would indemnify its directors and
officers against damages arising out of certain kinds of claims that might be made against them
based on their negligent acts or omissions while acting in their capacity as directors and
officers.

<!-- link2 "Item&nbsp;7. Exemption from Registration Claimed" -->
<DIV align="left"><A NAME="006"></A></DIV>

<P align="left" style="font-size: 10pt"><B>Item&nbsp;7. </B><B><I>Exemption from Registration Claimed</I></B>



<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not Applicable.

<!-- link2 "Item&nbsp;8. Exhibits" -->
<DIV align="left"><A NAME="007"></A></DIV>

<P align="left" style="font-size: 10pt"><B>Item&nbsp;8. </B><B><I>Exhibits</I></B>


<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="4%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="76%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left">Exhibit</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" style="border-bottom: 1px solid #000000">No.</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000">Description</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">*4.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&#151;
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Articles of Association, as amended (unofficial English
translation) (incorporated by reference to Exhibit&nbsp;1.1 to
PGS&#146; Annual Report on Form&nbsp;20-F for the fiscal year ended
December&nbsp;31, 2003, SEC File No.&nbsp;001-14614).</TD>
</TR>
<TR>
    <TD>&nbsp;</TD>
</TR>

<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">*4.2
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&#151;
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Deposit Agreement, dated as of May&nbsp;25, 1993, among PGS,
Citibank, N.A., as depositary (the &#147;Depositary&#148;), and all
holders from time to time of American Depositary Receipts
(&#147;Receipts&#148;) issued thereunder (the &#147;Deposit Agreement&#148;)
(incorporated by reference to Exhibit (a)(1) of
Post-Effective Amendment No.&nbsp;1 to PGS&#146; Registration
Statement on Form&nbsp;F-6, Registration No.&nbsp;33-61500).</TD>
</TR>
<TR>
    <TD>&nbsp;</TD>
</TR>

<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">*4.3
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&#151;
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">First Amendment to Deposit Agreement, dated as of April&nbsp;24,
1997, among PGS, the Depositary and all holders from time to
time of Receipts issued thereunder, including the form of
Receipt attached as Exhibit&nbsp;A thereto (incorporated by
reference to Exhibit (a)(2) of PGS&#146; Registration Statement
on Form&nbsp;F-6, Registration No.&nbsp;333-10856).</TD>
</TR>
<TR>
    <TD>&nbsp;</TD>
</TR>

<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">23
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&#151;
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of Ernst &#038; Young AS.</TD>
</TR>
<TR>
    <TD>&nbsp;</TD>
</TR>

<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">24
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&#151;
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Powers of Attorney.</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>



<P>
<HR size="1" width="18%" align="left" noshade color="#000000">

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top">
    <TD width="1%" nowrap align="left">*</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="96%">Incorporated herein by reference as indicated.</TD>
</TR>

</TABLE>



<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The use of original issuance securities pursuant to the Plans is not contemplated. If
original issuance securities are hereafter offered and sold pursuant to the Plans, an opinion of
counsel will be filed by amendment.

<!-- link2 "Item&nbsp;9. Undertakings" -->
<DIV align="left"><A NAME="008"></A></DIV>

<P align="left" style="font-size: 10pt"><B>Item&nbsp;9. </B><B><I>Undertakings</I></B>



<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a)&nbsp;The undersigned registrant hereby undertakes:



<P align="left" style="margin-left:3%; font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) To file, during any period in which offers or sales are being made, a
post-effective amendment to this Registration Statement:



<P align="left" style="margin-left:6%; font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) To include any prospectus required by Section&nbsp;10(a)(3) of the Securities
Act;



<P align="left" style="margin-left:6%; font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) To reflect in the prospectus any facts or events arising after the
effective date of this Registration Statement (or the most recent post-effective
amendment thereof) which, individually or in the aggregate, represent a fundamental
change in the information set forth in the Registration Statement. Notwithstanding
the foregoing, any increase or decrease in volume of securities offered (if the
total dollar value of securities offered would not exceed that which was


<P align="center" style="font-size: 10pt">II-2
</DIV>

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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">

<P align="left" style="margin-left:6%; font-size: 10pt">registered)
and any deviation from the low or high end of the estimated maximum offering range
may be reflected in the form of prospectus filed with the Commission pursuant to
Rule 424(b) of
the Securities Act if, in the aggregate, the changes in volume and price
represent no more than a 20% change in the maximum aggregate offering price set
forth in the &#147;Calculation of Registration Fee&#148; table in the effective Registration
Statement; and




<P align="left" style="margin-left:6%; font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii) To include any material information with respect to the plan of
distribution not previously disclosed in this Registration Statement or any material
change to such information in this Registration Statement;

<P align="left" style="margin-left:3%; font-size: 10pt"><I>provided, however, </I>that the undertakings set forth in paragraphs (a)(1)(i) and (a)(1)(ii)
above do not apply if the information required to be included in a post-effective amendment
by those paragraphs is contained in periodic reports filed by the registrant pursuant to
Section&nbsp;13 or Section 15(d) of the Exchange Act that are incorporated by reference in this
Registration Statement.




<P align="left" style="margin-left:3%; font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) That, for the purpose of determining any liability under the Securities Act, each
such post-effective amendment shall be deemed to be a new registration statement relating to
the securities offered therein, and the offering of such securities at that time shall be
deemed to be the initial <I>bona fide </I>offering thereof.



<P align="left" style="margin-left:3%; font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3) To remove from registration by means of a post-effective amendment any of the
securities being registered which remain unsold at the termination of the offering.


<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;The undersigned registrant hereby undertakes that, for purposes of determining any
liability under the Securities Act, each filing of the registrant&#146;s annual report pursuant to
Section 13(a) or Section 15(d) of the Exchange Act that is incorporated by reference in this
Registration Statement shall be deemed to be a new registration statement relating to the
securities offered therein, and the offering of such securities at that time shall be deemed to be
the initial <I>bona fide </I>offering thereof.


<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c)&nbsp;Insofar as indemnification for liabilities arising under the Securities Act may be
permitted to directors, officers, and controlling persons of the registrant pursuant to the
foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the
Commission such indemnification is against public policy as expressed in the Securities Act and is,
therefore, unenforceable. In the event that a claim for indemnification against such liabilities
(other than the payment by the registrant of expenses incurred or paid by a director, officer, or
controlling person of the registrant in the successful defense of any action, suit or proceeding)
is asserted by such director, officer or controlling person in connection with the securities being
registered, the registrant will, unless in the opinion of its counsel the matter has been settled
by controlling precedent, submit to a court of appropriate jurisdiction the question whether such
indemnification by it is against public policy as expressed in the Securities Act and will be
governed by the final adjudication of such issue.



<P align="center" style="font-size: 10pt">II-3
</DIV>

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<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">



<!-- link1 "SIGNATURES" -->
<DIV align="left"><A NAME="009"></A></DIV>

<P align="center" style="font-size: 10pt"><B>SIGNATURES</B>



<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act of 1933, the registrant certifies that it
has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and
has duly caused this Registration Statement to be signed on its behalf by the undersigned,
thereunto duly authorized, in the City of Lysaker, Kingdom of Norway, on May&nbsp;13, 2005.


<TABLE width="100%" border="0" cellspacing="0" cellpadding="0" style="font-size: 10pt">
<TR>
    <TD width="48%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="15%">&nbsp;</TD>
</TR>
<TR>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD colspan="3" align="left">PETROLEUM GEO-SERVICES ASA<BR>
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD valign="top">By:&nbsp;&nbsp;</TD>
    <TD colspan="2" style="border-bottom: 1px solid #000000" align="left">/<I>s</I>/ <I>Gottfred Langseth</I>
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Gottfred Langseth&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Senior Vice President and Chief Financial Officer&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
</TABLE>


<P align="center" style="font-size: 10pt">II-4
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">

<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has
been signed by the following persons in the capacities indicated on May&nbsp;13, 2005.

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="48%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="46%">&nbsp;</TD>
</TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">*
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Chairman</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="1" valign="top" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">

<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">Jens
Ulltveit-Moe</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">*
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">President and Chief Executive Officer</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="1" valign="top" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">Svein Rennemo
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">(Principal Executive Officer)</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px"><I>/s/ Gottfred Langseth</I>
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Senior Vice President and Chief Financial</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="1" valign="top" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">Gottfred Langseth
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Officer (Principal Financial Officer)</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">*
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Vice President and Chief Accounting Officer</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="1" valign="top" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">Christin Steen-Nilsen
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">(Principal Accounting Officer)</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">*
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="1" valign="top" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">Francis Gugen</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">*
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="1" valign="top" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">Keith Henry</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">*
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="1" valign="top" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">Harald Norvik</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">*
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="1" valign="top" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">Rolf Erik Rolfsen</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">*
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="1" valign="top" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">Clare Spottiswoode</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">*
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="1" valign="top" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">Anthony Tripodo</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="4%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="29%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="32%">&nbsp;</TD>
</TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">*By:
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><I>/s/ Gottfred Langseth</I></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Gottfred Langseth</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Attorney-in-fact</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">By:
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><I>/s/ Sam R. Morrow</I>
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Authorized Representative in the United States</TD>
</TR>
<TR style="font-size: 1px">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Sam R. Morrow</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Senior Vice President &#151; Finance and Treasurer</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt">II-5
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">
<!-- link1 "INDEX TO EXHIBITS" -->
<DIV align="left"><A NAME="010"></A></DIV>

<P align="center" style="font-size: 10pt"><B>INDEX TO EXHIBITS</B>


<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="4%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="76%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center">Exhibit</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" style="border-bottom: 1px solid #000000">No.</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000">Description</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">*4.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&#151;
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Articles of Association, as amended (unofficial English
translation) (incorporated by reference to Exhibit&nbsp;1.1 to
PGS&#146; Annual Report on Form&nbsp;20-F for the fiscal year ended
December&nbsp;31, 2003, SEC File No.&nbsp;001-14614).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">*4.2
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&#151;
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Deposit Agreement, dated as of May&nbsp;25, 1993, among PGS,
Citibank, N.A., as depositary (the &#147;Depositary&#148;), and all
holders from time to time of American Depositary Receipts
(&#147;Receipts&#148;) issued thereunder (the &#147;Deposit Agreement&#148;)
(incorporated by reference to Exhibit (a)(1) of
Post-Effective Amendment No.&nbsp;1 to PGS&#146; Registration
Statement on Form&nbsp;F-6, Registration No.&nbsp;33-61500).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">*4.3
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&#151;
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">First Amendment to Deposit Agreement, dated as of April&nbsp;24,
1997, among PGS, the Depositary and all holders from time to
time of Receipts issued thereunder, including the form of
Receipt attached as Exhibit&nbsp;A thereto (incorporated by
reference to Exhibit (a)(2) of PGS&#146;s Registration Statement
on Form&nbsp;F-6, Registration No.&nbsp;333-10856).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">23
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&#151;
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of Ernst &#038; Young AS.</TD>
</TR>
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    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
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    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">24
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&#151;
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Powers of Attorney.</TD>
</TR>
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    <TD width="1%" nowrap align="left">*</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="96%">Incorporated herein by reference as indicated.</TD>
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sv8
Table of Contents
As filed with the Securities and Exchange Commission on May 13, 2005
Registration No. 333-______
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM S-8
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933
PETROLEUM GEO-SERVICES ASA
(Exact name of registrant as specified in its charter)
Kingdom of Norway
(State or other jurisdiction of
incorporation or organization)
N/A
(I.R.S. Employer
Identification No.)
Strandveien 4
N-1366 Lysaker, Norway
(Address of principal executive offices)
N/A
(Zip code)
TOP 10 SHARE BONUS PLAN
GROUP 50 SHARE BONUS PLAN
GROUP 70 SHARE BONUS PLAN
(Full title of the plan)
Sam R. Morrow
Senior Vice President — Finance and Treasurer
Petroleum Geo-Services ASA
15150 Memorial Drive
Houston, Texas 77079
(Name and address of agent for service)
(281) 509-8000
(Telephone number, including area code,
of agent for service)
CALCULATION OF REGISTRATION FEE
Proposed Maximum
Amount of
Aggregate Offering
Registration
Title of Securities to be Registered
Price (1)
Fee
American Depositary Shares, each representing
one ordinary share, nominal value NOK 30 per

share
Ordinary shares, nominal value NOK 30 per share
Total
$
12,500,000
$
1,472
(1)
Estimated solely for the purpose of computing the registration fee pursuant to Rule
457(o) under the Securities Act. The American Depositary Shares ("ADSs"), each
representing one ordinary share, nominal value NOK 30 per share ("Shares"), of Petroleum
Geo-Services ASA ("PGS"), and the Shares being registered hereby consist of ADSs and Shares
to be acquired in open market purchases pursuant to the Top 10 Share Bonus Plan, the Group
50 Share Bonus Plan and the Group 70 Share Bonus Plan (collectively, the "Plans"). PGS is
hereby registering the offering of $2,500,000 aggregate offering price of ADSs and Shares
under the Top 10 Share Bonus Plan, $5,000,000 aggregate offering price of ADSs and Shares
under the Group 50 Share Bonus Plan and $5,000,000 aggregate offering price of ADSs and
Shares under the Group 70 Share Bonus Plan. Under the Plans, each eligible participant is
required to purchase in the open market within a specified period of time Shares and/or
ADSs in an amount equal to the net amount of the bonus (i.e., the gross amount of the bonus
net of any withholding taxes) received by such participant under the respective Plan. In
no event will the aggregate offering price of all securities offered from time to time
pursuant to this Registration Statement exceed $2,500,000 with respect to the Top 10 Share
Bonus Plan, $5,000,000 with respect to the Group 50 Share Bonus Plan or $5,000,000 with
respect to the Group 70 Share Bonus Plan.
TABLE OF CONTENTS
PART I
PART II
Item 3. Incorporation of Documents by Reference
Item 4. Description of Securities
Item 5. Interests of Named Experts and Counsel
Item 6. Indemnification of Directors and Officers
Item 7. Exemption from Registration Claimed
Item 8. Exhibits
Item 9. Undertakings
SIGNATURES
INDEX TO EXHIBITS
Consent of Ernst & Young AS
Powers of Attorney
Table of Contents
EXPLANATORY NOTE
This Registration Statement relates to the ADSs and Shares of PGS that may be acquired under
the Plans. The ADSs and Shares acquired under the Plans are obtained through open market purchases
at prevailing market prices. Such transactions do not involve the original issuance by PGS of any
new Shares or result in a change in the number of outstanding Shares.
-2-
Table of Contents
PART I
INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS
Note: The document(s) containing the information concerning the Plans required by Item 1 of
Form S-8 and the statement of availability of registrant information and any other information
required by Item 2 of Form S-8 will be sent or given to participants as specified by Rule 428 under
the Securities Act of 1933. In accordance with Rule 428 and the requirements of Part I of Form
S-8, such documents are not being filed with the Securities and Exchange Commission either as part
of this Registration Statement or as prospectuses or prospectus supplements pursuant to Rule 424
under the Securities Act. The registrant will maintain a file of such documents in accordance with
the provisions of Rule 428. Upon request, the registrant will furnish to the SEC or its staff a
copy of any or all of the documents included in such file.
-3-
Table of Contents
PART II
INFORMATION REQUIRED IN THE REGISTRATION STATEMENT
Item 3.
Incorporation of Documents by Reference
This Registration Statement incorporates herein by reference the following documents filed
with the SEC by PGS (SEC File No. 001-14614) pursuant to the Securities Exchange Act of 1934:
1.
PGS' annual report on Form 20-F for the fiscal year ended December 31, 2004;
and
2.
the description of PGS' ADSs and shares contained in its registration statement
on Form 8-A filed with the SEC on December 14, 2004, as that description may be updated
from time to time.
All documents filed by PGS with the SEC pursuant to Sections 13(a), 13(c), 14 and 15(d) of the
Exchange Act subsequent to the filing of this Registration Statement and prior to the filing of a
post-effective amendment to this Registration Statement which indicates that all securities offered
hereby have been sold, or which deregisters all securities then remaining unsold, shall be deemed
to be incorporated in this Registration Statement by reference and to be a part hereof from the
date of filing of such documents.
Any statement contained in this Registration Statement, in any amendment hereto or in a
document incorporated by reference herein shall be deemed to be modified or superseded for purposes
of this Registration Statement to the extent that a statement contained herein or in any
subsequently filed amendment to this Registration Statement or in any document that also is
incorporated by reference herein modifies or supersedes such statement. Any statement so modified
or superseded shall not be deemed, except as so modified or superseded, to constitute a part of
this Registration Statement.
Item 4.
Description of Securities
Not Applicable.
Item 5.
Interests of Named Experts and Counsel
Not Applicable.
Item 6.
Indemnification of Directors and Officers
Norwegian law provides that a director or the chief executive officer of a Norwegian company
is liable for any loss or damage he has intentionally or negligently caused the company in the
performance of his duties. The shareholders may, by a majority resolution at a general meeting,
decide either to bring a claim against, or to discharge from liability, such director or chief
executive officer. Notwithstanding a decision at the general meeting to discharge a person from
liability or to reject a proposal to hold a person liable, shareholders owning at least 10% of the
share capital, or at least 10% the total number of shareholders, may within a limited period of
time bring a claim predicated on such liability on behalf of the company.
In addition, PGS has entered into indemnification agreements with each of its directors. Each
agreement provides that, in the event that such director was, is or becomes a party to any pending
or completed action, suit or proceeding, or any inquiry or investigation that leads to the
institution of any such action, suit or proceeding, by reason of or arising out of any event or
occurrence relating to anything done or not done by such director in the capacity as a director of
PGS, then PGS will indemnify such director to the fullest extent permitted by applicable law
against any and all expenses, judgments, fines and amounts paid in settlement. If so requested by
a director, PGS will advance expenses to such director within 10 business days of such request.
II-1
Table of Contents
PGS also has directors and officers liability insurance that would indemnify its directors and
officers against damages arising out of certain kinds of claims that might be made against them
based on their negligent acts or omissions while acting in their capacity as directors and
officers.
Item 7.
Exemption from Registration Claimed
Not Applicable.
Item 8.
Exhibits
Exhibit
No.
Description
*4.1
—
Articles of Association, as amended (unofficial English
translation) (incorporated by reference to Exhibit 1.1 to
PGS' Annual Report on Form 20-F for the fiscal year ended
December 31, 2003, SEC File No. 001-14614).
*4.2
—
Deposit Agreement, dated as of May 25, 1993, among PGS,
Citibank, N.A., as depositary (the "Depositary"), and all
holders from time to time of American Depositary Receipts
("Receipts") issued thereunder (the "Deposit Agreement")
(incorporated by reference to Exhibit (a)(1) of
Post-Effective Amendment No. 1 to PGS' Registration
Statement on Form F-6, Registration No. 33-61500).
*4.3
—
First Amendment to Deposit Agreement, dated as of April 24,
1997, among PGS, the Depositary and all holders from time to
time of Receipts issued thereunder, including the form of
Receipt attached as Exhibit A thereto (incorporated by
reference to Exhibit (a)(2) of PGS' Registration Statement
on Form F-6, Registration No. 333-10856).
23
—
Consent of Ernst & Young AS.
24
—
Powers of Attorney.
*
Incorporated herein by reference as indicated.
The use of original issuance securities pursuant to the Plans is not contemplated. If
original issuance securities are hereafter offered and sold pursuant to the Plans, an opinion of
counsel will be filed by amendment.
Item 9.
Undertakings
(a) The undersigned registrant hereby undertakes:
(1) To file, during any period in which offers or sales are being made, a
post-effective amendment to this Registration Statement:
(i) To include any prospectus required by Section 10(a)(3) of the Securities
Act;
(ii) To reflect in the prospectus any facts or events arising after the
effective date of this Registration Statement (or the most recent post-effective
amendment thereof) which, individually or in the aggregate, represent a fundamental
change in the information set forth in the Registration Statement. Notwithstanding
the foregoing, any increase or decrease in volume of securities offered (if the
total dollar value of securities offered would not exceed that which was
II-2
Table of Contents
registered)
and any deviation from the low or high end of the estimated maximum offering range
may be reflected in the form of prospectus filed with the Commission pursuant to
Rule 424(b) of
the Securities Act if, in the aggregate, the changes in volume and price
represent no more than a 20% change in the maximum aggregate offering price set
forth in the "Calculation of Registration Fee" table in the effective Registration
Statement; and
(iii) To include any material information with respect to the plan of
distribution not previously disclosed in this Registration Statement or any material
change to such information in this Registration Statement;
provided, however,
that the undertakings set forth in paragraphs (a)(1)(i) and (a)(1)(ii)
above do not apply if the information required to be included in a post-effective amendment
by those paragraphs is contained in periodic reports filed by the registrant pursuant to
Section 13 or Section 15(d) of the Exchange Act that are incorporated by reference in this
Registration Statement.
(2) That, for the purpose of determining any liability under the Securities Act, each
such post-effective amendment shall be deemed to be a new registration statement relating to
the securities offered therein, and the offering of such securities at that time shall be
deemed to be the initial
bona fide
offering thereof.
(3) To remove from registration by means of a post-effective amendment any of the
securities being registered which remain unsold at the termination of the offering.
(b) The undersigned registrant hereby undertakes that, for purposes of determining any
liability under the Securities Act, each filing of the registrant's annual report pursuant to
Section 13(a) or Section 15(d) of the Exchange Act that is incorporated by reference in this
Registration Statement shall be deemed to be a new registration statement relating to the
securities offered therein, and the offering of such securities at that time shall be deemed to be
the initial
bona fide
offering thereof.
(c) Insofar as indemnification for liabilities arising under the Securities Act may be
permitted to directors, officers, and controlling persons of the registrant pursuant to the
foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the
Commission such indemnification is against public policy as expressed in the Securities Act and is,
therefore, unenforceable. In the event that a claim for indemnification against such liabilities
(other than the payment by the registrant of expenses incurred or paid by a director, officer, or
controlling person of the registrant in the successful defense of any action, suit or proceeding)
is asserted by such director, officer or controlling person in connection with the securities being
registered, the registrant will, unless in the opinion of its counsel the matter has been settled
by controlling precedent, submit to a court of appropriate jurisdiction the question whether such
indemnification by it is against public policy as expressed in the Securities Act and will be
governed by the final adjudication of such issue.
II-3
Table of Contents
SIGNATURES
Pursuant to the requirements of the Securities Act of 1933, the registrant certifies that it
has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and
has duly caused this Registration Statement to be signed on its behalf by the undersigned,
thereunto duly authorized, in the City of Lysaker, Kingdom of Norway, on May 13, 2005.
PETROLEUM GEO-SERVICES ASA
By:
/
s
/
Gottfred Langseth
Gottfred Langseth
Senior Vice President and Chief Financial Officer
II-4
Table of Contents
Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has
been signed by the following persons in the capacities indicated on May 13, 2005.
*
Chairman
Jens
Ulltveit-Moe
*
President and Chief Executive Officer
Svein Rennemo
(Principal Executive Officer)
/s/ Gottfred Langseth
Senior Vice President and Chief Financial
Gottfred Langseth
Officer (Principal Financial Officer)
*
Vice President and Chief Accounting Officer
Christin Steen-Nilsen
(Principal Accounting Officer)
*
Director
Francis Gugen
*
Director
Keith Henry
*
Director
Harald Norvik
*
Director
Rolf Erik Rolfsen
*
Director
Clare Spottiswoode
*
Director
Anthony Tripodo
*By:
/s/ Gottfred Langseth
Gottfred Langseth
Attorney-in-fact
By:
/s/ Sam R. Morrow
Authorized Representative in the United States
Sam R. Morrow
Senior Vice President — Finance and Treasurer
II-5
Table of Contents
INDEX TO EXHIBITS
Exhibit
No.
Description
*4.1
—
Articles of Association, as amended (unofficial English
translation) (incorporated by reference to Exhibit 1.1 to
PGS' Annual Report on Form 20-F for the fiscal year ended
December 31, 2003, SEC File No. 001-14614).
*4.2
—
Deposit Agreement, dated as of May 25, 1993, among PGS,
Citibank, N.A., as depositary (the "Depositary"), and all
holders from time to time of American Depositary Receipts
("Receipts") issued thereunder (the "Deposit Agreement")
(incorporated by reference to Exhibit (a)(1) of
Post-Effective Amendment No. 1 to PGS' Registration
Statement on Form F-6, Registration No. 33-61500).
*4.3
—
First Amendment to Deposit Agreement, dated as of April 24,
1997, among PGS, the Depositary and all holders from time to
time of Receipts issued thereunder, including the form of
Receipt attached as Exhibit A thereto (incorporated by
reference to Exhibit (a)(2) of PGS's Registration Statement
on Form F-6, Registration No. 333-10856).
23
—
Consent of Ernst & Young AS.
24
—
Powers of Attorney.
*
Incorporated herein by reference as indicated.