Schedule 5.1.5
                                                                to the Share Sale and Purchase Agreement
                                                                      between Statoil ASA and Statpet AS
                                                                                     and Norsk Teekay AS
                                                                                  dated 15 December 2002

Patents and Trademarks

We refer to the Share Sale and Purchase  Agreement  (the  Agreement)  entered into on 15 December 2002
between  Statoil ASA  (Statoil)  and Statpet AS (Statpet) on the one side and Norsk Teekay AS on the
other side.

Words and expressions  defined or used in the Agreement have the same meanings in this Schedule,  unless
the contrary is expressly  stated or where those meanings would be clearly  inconsistent in the relevant
context.

We hereby  represent and warrant that Group Members have title to,  ownership right of or valid licences
to use all patents,  trademarks,  service marks, trade names, copyrights, trade secrets, information and
other  intellectual  and industrial  property rights which it uses in the performance of its business as
follows:

`Patent
                                                   Application      Application        Publication         approval
Reference            Title / Country                  date            number             number              date

P4247-1              Loading of DP vessels

P4247-1NO            Norway                        20.07.2000        20003735            312358               29.04.2002
P4247-1WO            International phase (PCT)     19.07.2001       NO01/00311


P3823-1              Two sectioned vessels for use in the transportation of oil in artic waters

P3823-1CA            Canada                        11.10.1999         2285955
P3823-1DK            Denmark                       06.10.1999         1433/99            173845               17.12.2001
P3823-1NO            Norway                        11.04.1997        19971690
P3823-1NO2           Norway                        08.10.1999        19994911
P3823-1RU            Russia                        11.10.1999        99121175
P3823-1US            USA                           11.10.1999        09/402765           6162105              19.12.2000
P3823-1WO            International phase (PCT)     09.09.1997       NO97/00241


P4191-1              Platform offloading system

P4191-1NO            Norway                        12.04.2000        20001908
P4191-1WO            International phase (PCT)     05.06.2001       NO01/00230


P4015-2              Semisub - 4C

P4015-2NO            Norway                        20.03.1998        19981293


P4015-4              Semisub - 4

P4015-4NO            Norway                        20.03.1998        19981295


P0040-1              Transportation of oil

P0040-1AU            Australia                     17.01.1992        11880/93            658393               15.08.1995
P0040-1BE            Belgium                       11.08.1993                            571409               02.11.1995
P0040-1BR            Brazil                        19.07.1993         9205561          PI9205561.3            25.11.1997
P0040-1DE            Germany                       11.08.1993                            571409               23.05.1996
P0040-1DK            Denmark                       11.08.1993                            571409               02.11.1995
P0040-1EP            European Patent Office        11.08.1993        92903460            571409               02.11.1995
P0040-1ES            Spain                         11.08.1993                          92903460.1             02.11.1995
P0040-1FI            Finland                       19.07.1993         933261             104809               14.04.2000
P0040-1FR            France                        11.08.1993                            571409               02.11.1995
P0040-1GB            Great Britain                 11.08.1993                            571409               02.11.1995
P0040-1GR            Greece                        11.08.1993                            3017976              02.11.1995
P0040-1IT            Italy                         11.08.1993                            571409               02.11.1995
P0040-1JP            Japan                         19.07.1993        503311/92           2769646              17.04.1998
P0040-1KR            Republic of Korea             16.07.1993        93-702130           219346               15.06.1999
P0040-1NL            The Netherlands               11.08.1993                            571409               02.11.1995
P0040-1NO            Norway                        16.07.1993        19932589            179784               18.12.1996
P0040-1RU            Russia                        16.07.1993        93052797            2103197              27.01.1998
P0040-1SE            Sweden                        11.08.1993                          92903460.1             02.11.1995
P0040-1US            USA                           11.03.1993          90022             5398629              21.03.1995
P0040-1WO            International phase (PCT)     17.01.1992       NO92/00007         WO92/12893


P2837-1              Methods and vessels for offshore oil loading

P2837-1AU            Australia                     15.01.1995        43603/93            673363               19.03.1997
P2837-1BR            Brazil                        14.12.1994       PI9306550.7        PI9306550.7            24.08.1999
P2837-1DE            Germany                       11.06.1993        93913645          69304062.9             14.08.1996
P2837-1DK            Denmark                       11.06.1993        93913645            644844               14.08.1996
P2837-1EP            European Patent Office        15.12.1994        93913645            644844               14.08.1996
P2837-1ES            Spain                         11.06.1993        93913645          93913645.3             14.08.1996
P2837-1FI            Finland                       15.12.1994         945914
P2837-1FR            France                        11.06.1993        93913645            644844               14.08.1996
P2837-1GB            Great Britain                 11.06.1993        93913645            644844               14.08.1996
P2837-1GR            Greece                        11.06.1993        93913645            3021522              14.08.1996
P2837-1IT            Italy                         11.06.1993        93913645            644844               14.08.1996
P2837-1JP            Japan                         15.12.1994        06-501353
P2837-1KR            Republic of Korea                               94-704588
P2837-1NL            The Netherlands               11.06.1993        93913645            644844               14.08.1996
P2837-1NO            Norway                        15.06.1992        19922352            175424               12.10.1994
P2837-1RU            Russia                                         94046248.0           2122959              10.12.1998
P2837-1SE            Sweden                        11.06.1993        93913645          93913645.3             14.08.1996
P2837-1US            USA                           26.01.1995        08/356209           5492075              20.02.1996
P2837-1WO            International phase (PCT)     11.06.1993       NO93/00090


P2858-1              System for offshore transport of hydrocarbons

P2858-1NO            Norway                        09.09.1992        19923511            300059               01.04.1997


P3022-1              Towing line system

P3022-1NO            Norway                        17.06.1993        19932240            177929


P3267-1              Sea anchor system for vessel

P3267-1CA            Canada                        24.11.1995         2163726
P3267-1GB            Great Britain                 23.11.1995        9523966.1           2295372              29.05.1996
P3267-1IE            Ireland                       23.11.1995         950891
P3267-1NO            Norway                        24.11.1994        19944504            300536               16.06.1997


P3659-1              System for increasing the effect of a vessels rudder

P3659-1CN            China                         24.09.1999       98803668.1
P3659-1DE            Germany                                        98912831.9
P3659-1EP            European Patent Office        19.03.1998       98912831.9
P3659-1ES            Spain                                          98912831.9
P3659-1FI            Finland                                        98912831.9
P3659-1FR            France                                         98912831.9
P3659-1GB            Great Britain                                  98912831.9
P3659-1JP            Japan                         16.09.1999        10-540954
P3659-1KR            Republic of Korea             22.09.1999   10-1999-7008681
P3659-1NO            Norway                        24.03.1997        19971368            303168
P3659-1PL            Poland                        22.09.1999         335944
P3659-1US            USA                           23.09.1999        09/381684           6085680
P3659-1WO            International phase (PCT)     19.03.1998       NO98/00087


P3659-2             High-speed rudder

P3659-2CN            China                         24.01.2000       98807539.3
P3659-2DE            Germany
P3659-2EP            European Patent Office        23.01.2000       98940691.3
P3659-2ES            Spain
P3659-2FI            Finland
P3659-2FR            France
P3659-2GB            Great Britain
P3659-2JP            Japan                         20.12.1999        11-510265
P3659-2KR            Republic of Korea             21.01.2000   10-2000-7000647
P3659-2NO            Norway                        23.07.1997        19973396            303333
P3659-2PL            Poland                        21.01.2000        P 338301
P3659-2US            USA                           13.01.2000        09/462749           6314900
P3659-2WO            International phase (PCT)     21.07.1998       NO98/00223


P3895-1              Ship I

P3895-1NO            Norway                        12.12.1997        19975873            306664               06.12.1999


P3895-2              Ship II

P3895-2NO            Norway                        12.12.1997        19975874            310344               25.06.2001


P3910-1              Ship III

P3910-1CA            Canada                        12.06.2000         2314360
P3910-1DK            Denmark                       26.05.2000        200000840           173813               12.11.2001
P3910-1GB            Great Britain                 14.06.2000       00.14569.8           2349372              16.01.2002
P3910-1NO            Norway                        12.12.1997        19975875            310550               23.07.2001
P3910-1WO            International phase (PCT)     10.12.1998       NO98/00375


P4042-1              System for use in offshore working operations

P4042-1AO            Angola                        04.06.1999           509
P4042-1BR            Brazil                        05.12.2000       PI9910948.4
P4042-1ES            Spain                         27.11.2000        200050074
P4042-1FI            Finland                       04.12.2000        20002650
P4042-1GB            Great Britain                 30.11.2000        0029257.3           2354491
P4042-1NG            Nigeria                       04.06.1999         141/99             RP13564
P4042-1NO            Norway                        05.06.1998        19982585
P4042-1NO2           Norway                        24.11.2000        20005942
P4042-1US            USA                           05.12.2000        09/701864           6336419
P4042-1VE            Venezuela                     04.06.1999         1058-99
P4042-1WO            International phase (PCT)     04.06.1999       NO99/00182


P4116-1              Storage of loading hose

P4116-1NO            Norway                        28.01.1999        19990412            310346
P4116-1WO            International phase (PCT)     27.01.2000       NO00/00022         WO 00/44615


P4146-1              Subsea storage of loading hose

P4146-1NO            Norway                        23.06.1999        19993130            311295
P4146-1WO            International phase (PCT)     22.06.2000       NO00/00217


P4331-1              HC blanket gas

P4331-1NO            Norway                        19.06.2001        20013036
P4331-1WO            International phase (PCT)     31.05.2002       NO02/00191


P4155-1              Method and device for connecting vessels

P4155-1CA            Canada                        29.10.2001         2371054
P4155-1FI            Finland                       29.10.2001        20012070
P4155-1JP            Japan                                          2000-615273
P4155-1KR            Republic of Korea                             2001-7013798
P4155-1KZ            Kazakhstan                                     2001/1565.1
P4155-1NO            Norway                        29.04.1999        19992053            308591               02.10.2000
P4155-1RU            Russia                                         2001129154
P4155-1WO            International phase (PCT)     13.04.2000       NO00/00122


P4431-1              Subsea storage of oil

P4431-1NO            Norway                        23.10.2002        20025086`

If a Group Member has the right to  ownership,  but not  registered  title to any of the above  patents,
trademarks,  service marks or other intellectual  property rights, and a member of the Statoil Group has
such title,  the Group  Member may,  without  payment of further  compensation  but at its sole cost and
expense, require the Statoil Group member to transfer such title to such Group Member (or its nominee).

* * *

The following  patents and patent  applications  and trademarks will before Closing be transferred  from
Group Members to Statoil:

`Patent
                                                   Application      Application        Publication         approval
Reference            Title / Country                  date            number             number              date


P4327-1              Replacement of ballast water

P4327-1NO            Norway                        28.08.2001        20014168
P4327-1WO            International phase (PCT)     23.08.2002       NO02/00294


P4246-1              System for transfer of cargo

P4246-1NO            Norway                        20.07.2000        20003736            312359       29.04.2002
P4246-1WO            International phase (PCT)     19.07.2001       NO01/00312


P4270-1              Riser system for DP FPSO

P4270-1NO            Norway                        20.03.2001        20011408
P4270-1WO            International phase (PCT)     15.03.2002       NO02/00107


P4277-1              STL pick-up system

P4277-1NO            Norway                        29.06.2001        20013264
P4277-1US            USA                                             10/185447


P4236-1              Locking mechanism for buoy

P4236-1NO            Norway                        26.05.2000        20002705            312354               29.04.2002
P4236-1WO            International phase (PCT)     25.05.2001       NO01/00218         WO 01/89919


P3205-1              Vessels for production and/or loading/unloading

P3205-1AU            Australia                                       16730/95            686328               21.05.1998
P3205-1BR            Brazil                        02.08.1996       PI9506693.4
P3205-1CA            Canada                        02.08.1996         2182293
P3205-1CN            China                         02.08.1996       95191460.X            53310               22.01.2000
P3205-1DE            Germany                       02.08.1996       95908395.7           739290               16.12.1998
P3205-1DK            Denmark                       02.08.1996       95908395.7           739290               16.12.1998
P3205-1EP            European Patent Office        02.08.1996       95908395.7           739290               16.12.1998
P3205-1ES            Spain                         02.08.1996       95908395.7         95908395.7             16.12.1998
P3205-1FI            Finland                       02.08.1996         963044
P3205-1FR            France                        02.08.1996       95908395.7           739290               16.12.1998
P3205-1GB            Great Britain                 02.08.1996        9615479.4           2300836              04.02.1998
P3205-1IE            Ireland                       02.08.1996       95908395.7           739290               16.12.1998
P3205-1IT            Italy                         02.08.1996       95908395.7           739290               16.12.1998
P3205-1JP            Japan                         01.08.1996        520522/95
P3205-1KR            Republic of Korea             02.08.1996        96-704139
P3205-1NL            The Netherlands               02.08.1996       95908395.7           739290               16.12.1998
P3205-1NO            Norway                        02.02.1994        19940352            311075               08.10.2001
P3205-1PL            Poland                        02.08.1996         315775
P3205-1RU            Russia                        30.08.1996        96117324            2144611              20.01.2000
P3205-1US            USA                           12.09.1996        08/687597           5749758              12.05.1998
P3205-1VN            Vietnam                       22.08.1996        SC0134/96
P3205-1WO            International phase (PCT)     01.02.1995       NO95/00022          WO952109


P3232-1              Vessels to be used for production of hydrocarbons

P3232-1GB            Great Britain                 22.08.1995        9517152.6           2292760              30.12.1998
P3232-1GB2           Great Britain                 24.12.1997        9727361.9
P3232-1NO            Norway                        22.08.1994        19943085            312282               22.04.2002


P3815-1              Vessel to be used for production and/or storage of hydrocarbons

P3815-1CA            Canada                        20.08.1999         2281511
P3815-1GB            Great Britain                 20.08.1999        9919834.3           2337972              28.03.2001
P3815-1NO            Norway                        20.02.1997        19970793            308785               30.10.2000
P3815-1US            USA                           29.10.1999        09/367548           6155193              05.12.2000
P3815-1WO            International phase (PCT)     19.02.1998       NO98/00050


V0121-1              MST trademark

V0121-1AU            Australia                     27.09.1995         673610             673610               18.04.1997
V0121-1AU2           Australia                     27.09.1995         673611
V0121-1BR            Brazil                        29.09.1995        818822465          818822465             07.07.1998
V0121-1BR2           Brazil                        29.09.1995        818822473          818822473             23.06.1998
V0121-1CA            Canada                        02.10.1995         793973             484729               28.10.1997
V0121-1CN            China                         27.09.1995        950123428           1006732              14.05.1997
V0121-1CN2           China                         27.09.1995        950123429           1001645              07.05.1997
V0121-1DK            Denmark                       28.09.1995          7296              03.234               31.05.1996
V0121-1GB            Great Britain                 27.09.1995         2038966            2038966              14.03.1997
V0121-1IE            Ireland                       26.09.1995         95/6728            174245               31.03.1995
V0121-1IE2           Ireland                       01.07.1996         95/6729            200673               01.07.1996
V0121-1MX            Mexico                        02.10.1995         244585             514082               17.01.1996
V0121-1MX2           Mexico                        02.10.1995         244584             514081               17.01.1996
V0121-1MY            Malaysia                      29.09.1995        95/10289
V0121-1NO            Norway                        31.03.1995         952111             175833               25.07.1996
V0121-1VN            Vietnam                       29.09.1995        N-3983/95


P3449-1              Method for loading and treatment of hydrocarbons

P3449-1AU            Australia                     18.12.1997        58466/96            704811               06.05.1999
P3449-1BR            Brazil                        18.11.1997       PI9608823-0         PI9608823             14.05.2002
P3449-1CA            Canada                        18.11.1997         2220092
P3449-1CN            China                         18.11.1997       96193995.8            68287               10.02.2001
P3449-1DK            Denmark                                        96920058.3           825946               12.04.2000
P3449-1EP            European Patent Office                         96920058.3           825946               12.04.2000
P3449-1GB            Great Britain                                  96920058.3           825946               12.04.2000
P3449-1IE            Ireland                                        96920058.3           825946               12.04.2000
P3449-1MY            Malaysia                      16.05.1996         9601849
P3449-1NO            Norway                        18.05.1995        19951977
P3449-1NO2           Norway                        17.11.1997        19975257
P3449-1TH            Thailand                      20.05.1996          31472
P3449-1US            USA                           13.03.1998        08/952809           6021848              08.02.2000
P3449-1VN            Vietnam                       18.12.1997        19971032
P3449-1WO            International phase (PCT)     14.05.1996       NO96/00118


P4001-1              System for transferring of cargo

P4001-1AU            Australia                     30.06.2000        27497/99            742138               04.04.2002
P4001-1BR            Brazil                        31.07.2000       PI9908216.0
P4001-1CA            Canada                        10.08.2000         2320237
P4001-1CN            China                         04.07.2000       99802015.X
P4001-1EP            European Patent Office        10.08.2000       99907968.4
P4001-1ID            Indonesia                     11.09.2000       W-20001757
P4001-1JP            Japan                         04.07.2000
P4001-1KR            Republic of Korea             09.08.2000   10-2000-7008680
P4001-1NO            Norway                        10.02.1998        19980579            304824               22.02.1999
P4001-1RU            Russia                        07.08.2000       2000120684
P4001-1SG            Singapore                     03.07.2000       200003673.1           74407               08.08.2002
P4001-1TT            Trinidad and Tobago           11.07.2000     TT/A/2000/00092
P4001-1US            USA                           08.08.2000        09/601797           6412433              02.07.2002
P4001-1WO            International phase (PCT)     08.02.1999       NO99/00041


P4002-1              Loading hose mooring or storage

P4002-1AU            Australia                     08.06.2000        24423/99
P4002-1BR            Brazil                        20.07.2000       PI9907156.8
P4002-1CA            Canada                        25.07.2000         2318995            2124435              11.09.2001
P4002-1EP            European Patent Office        30.07.2000       99903951.4
P4002-1NO            Norway                        30.01.1998        19980431            305234               26.04.1999
P4002-1US            USA                           25.07.2000        09/600974           6427617              06.08.2002
P4002-1WO            International phase (PCT)     29.01.1999       NO99/00025


P4192-1              Sequential heating of pipelines

P4192-1NO            Norway                        04.05.2000        20002352


P4027-1              Modular adapter for installation in a vessel, for accomodation of a submerged buoy or similar

P4027-1BR            Brazil                        08.10.2000       PI9909912.8
P4027-1CA            Canada                        03.10.2000         2329171
P4027-1ES            Spain                         06.10.2000        200002420
P4027-1GB            Great Britain                 02.10.2000        0023995.4           2350343              27.02.2002
P4027-1KR            Republic of Korea             08.10.2000      2000-7011172
P4027-1NO            Norway                        08.04.1998        19981627            308103               24.07.2000
P4027-1US            USA                           20.10.2000        09/673054
P4027-1WO            International phase (PCT)     07.04.1999       NO99/00115


P4367-1              Depositing of CO2

P4367-1NO            Norway                        03.12.2001        20015889

P4144-1              Forming of methanol from waste gas, where the methanol is injected into a well

P4144-1AU            Australia                     24.05.2002        15616/01
P4144-1GB            Great Britain                 28.05.2002        0212267.9
P4144-1NO            Norway                        24.11.1999        19995756            311187               22.10.2001
P4144-1US            USA                           15.05.2002        10/130234
P4144-1WO            International phase (PCT)     23.11.2000       NO00/00395


P4169-1              Vessel based system for treatment of petroleum fluids with little associated gas

P4169-1BR            Brazil
P4169-1EP            European Patent Office
P4169-1NO            Norway                        04.05.2000        20002356            312138               25.03.2002
P4169-1US            USA
P4169-1WO            International phase (PCT)     27.04.2001       NO01/00178          WO /83947


P4251-1              Light FPSO

P4251-1NO            Norway                        05.02.2001        20010589            313060               05.08.2002
P4251-1WO            International phase (PCT)     30.01.2002       NO02/00038          WO/063135


P4170-1              Vessel mooring

P4170-1AU 1)                                       30.12.2001        46285/00
P4170-1BR 1)                                       28.12.2001       PI0012052.9
P4170-1EP 1)                                       30.12.2001       00927983.7
P4170-1ID 1)                                       30.10.2001        200102353
P4170-1NO 1)                                       30.06.1999        19993264
P4170-1NO2 1)                                      21.12.2001        20016337
P4170-1US 1)                                       03.12.2001        10/009360
P4170-1WO 1)                                       11.05.2000       NO00/00156         WO 01/00482


P4341-1              Compressed Natural Gas Transportation
P4341-1AO 2)
P4341-1NG 2)
P4341-1NO 2)                                       09.07.2001        20013394
P4341-1VE  2)                                      09.07.2002         1335-02
P4341-1WO 2)                                       26.06.2002       NO02/00234


P4025-1              System for floating production, storage and export of LNG

P4025-1AU 3)                           06.07.2000   24424/99          750571
P4025-1BR 3)                           28.07.2000  PI9908041.9
P4025-1CA 3)                           30.10.2000   23199816
P4025-1CN 3)                           28.07.2000  99802528.3
P4025-1EP 3)                           30.10.2000  99903952.2
P4025-1ID 3)                           29.08.2000  W-20001658
P4025-1JP 3)                           14.07.2000  2000-530015
P4025-1KR 3)                           28.07.2000  10-2000-7008233
P4025-1NO 3)                           30.04.1998   19981991
P4025-1RU  3)                          28.07.2000  2000120322
P4025-1SG 3)                           03.07.2000  200003675.6
P4025-1TT 3)                           11.07.2000  TT/A/2000/00093
P4025-1US  3)                          28.08.2000   09/601119         6434984          20.08.2002
P4025-1WO 3)                           29.01.1999  NO99/00026       WO 9938761


P5014-1              Well stream shuttle producer

P5014-1NO            Application under preparation


P5017-1              Oil- and gas production at marginal fields

P5017-1NO            Norway                        25-06-2002        20023068`

Abbreviations:

1)   Joint application between APL and Navion.
            2)   Statoil, Navion and Propure are stated as owners in the application.
            3)   Statoil and Navion are stated as owners in the application.

* * *

All  documents  in the Navion  Groups  files  regarding  projects  carried  out by the  Technology  and
Maritime  Projects  Division of the Navion Group  (TMP) on behalf of Statoil  and/or third parties not
concerning the Navion business acquired by the Buyer shall be handed over to Statoil before Closing.

Statoil shall be entitled to have access to documents necessary for their management.

Copies of the documents  regarding the said projects  necessary for  management of Navion Group shall be
filed in the archives of Navion Group before Closing.

The Parties  agree,  that to the extent deemed  necessary or advisable,  they will procure that prior to
Closing  Statoil and Navion  shall  enter into a final  agreement  regarding  access to the files of TMP
based on the above principles.

* * *

Notwithstanding  the above,  Navion Group shall be entitled to a  non-transferable  and royalty free and
eternal  right of use of patent  P4327-1  Ballast  water.  However,  the Buyer  shall be  entitled  to
transfer the right of use within the Navion Group and to Statoil.

Notwithstanding  the above,  Statoil  shall be  entitled  to a  non-transferable  and  royalty  free and
eternal right of use of patent  P4331-1 HC Blanket gas pursuant to an agreement  entered into or to be
entered into between  Statoil and the Buyer.  However,  Statoil  shall be entitled to transfer the right
of use to any affiliate of Statoil or to the Navion Group.

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